Merge remote-tracking branch 'origin/master' into feat/refactor-fsm-input

.circleci/config.yml

@@ -1,6 +1,7 @@
 version: 2.1
 orbs:
   go: gotest/tools@0.0.13
+  aws-cli: circleci/aws-cli@1.3.2
 
 executors:
   golang:
@@ -200,6 +201,8 @@ jobs:
     <<: *test
   test-window-post:
     <<: *test
+  test-window-post-dispute:
+    <<: *test
   test-terminate:
     <<: *test
   test-conformance:
@@ -264,6 +267,16 @@ jobs:
           path: /tmp/test-reports
       - store_artifacts:
           path: /tmp/test-artifacts/conformance-coverage.html
+  build-ntwk-calibration:
+    description: |
+      Compile lotus binaries for the calibration network
+    parameters:
+      <<: *test-params
+    executor: << parameters.executor >>
+    steps:
+      - install-deps
+      - prepare
+      - run: make calibnet
   build-lotus-soup:
     description: |
       Compile `lotus-soup` Testground test plan
@@ -447,6 +460,114 @@ jobs:
           name: Publish release
           command: ./scripts/publish-release.sh
 
+  build-and-push-image:
+    description: build and push docker images to public AWS ECR registry
+    executor: aws-cli/default
+    parameters:
+      profile-name:
+        type: string
+        default: "default"
+        description: AWS profile name to be configured.
+
+      aws-access-key-id:
+        type: env_var_name
+        default: AWS_ACCESS_KEY_ID
+        description: >
+          AWS access key id for IAM role. Set this to the name of
+          the environment variable you will set to hold this
+          value, i.e. AWS_ACCESS_KEY.
+
+      aws-secret-access-key:
+        type: env_var_name
+        default: AWS_SECRET_ACCESS_KEY
+        description: >
+          AWS secret key for IAM role. Set this to the name of
+          the environment variable you will set to hold this
+          value, i.e. AWS_SECRET_ACCESS_KEY.
+
+      region:
+        type: env_var_name
+        default: AWS_REGION
+        description: >
+          Name of env var storing your AWS region information,
+          defaults to AWS_REGION
+
+      account-url:
+        type: env_var_name
+        default: AWS_ECR_ACCOUNT_URL
+        description: >
+          Env var storing Amazon ECR account URL that maps to an AWS account,
+          e.g. {awsAccountNum}.dkr.ecr.us-west-2.amazonaws.com
+          defaults to AWS_ECR_ACCOUNT_URL
+
+      dockerfile:
+        type: string
+        default: Dockerfile
+        description: Name of dockerfile to use. Defaults to Dockerfile.
+
+      path:
+        type: string
+        default: .
+        description: Path to the directory containing your Dockerfile and build context. Defaults to . (working directory).
+
+      extra-build-args:
+        type: string
+        default: ""
+        description: >
+          Extra flags to pass to docker build. For examples, see
+          https://docs.docker.com/engine/reference/commandline/build
+
+      repo:
+        type: string
+        description: Name of an Amazon ECR repository
+
+      tag:
+        type: string
+        default: "latest"
+        description: A comma-separated string containing docker image tags to build and push (default = latest)
+
+    steps:
+      - aws-cli/setup:
+          profile-name: <<parameters.profile-name>>
+          aws-access-key-id: <<parameters.aws-access-key-id>>
+          aws-secret-access-key: <<parameters.aws-secret-access-key>>
+          aws-region: <<parameters.region>>
+
+      - run:
+          name: Log into Amazon ECR
+          command: |
+            aws ecr-public get-login-password --region $<<parameters.region>> --profile <<parameters.profile-name>> | docker login --username AWS --password-stdin $<<parameters.account-url>>
+
+      - checkout
+
+      - setup_remote_docker:
+          version: 19.03.13
+          docker_layer_caching: false
+
+      - run:
+          name: Build docker image
+          command: |
+            registry_id=$(echo $<<parameters.account-url>> | sed "s;\..*;;g")
+
+            docker_tag_args=""
+            IFS="," read -ra DOCKER_TAGS \<<< "<< parameters.tag >>"
+            for tag in "${DOCKER_TAGS[@]}"; do
+              docker_tag_args="$docker_tag_args -t $<<parameters.account-url>>/<<parameters.repo>>:$tag"
+            done
+
+            docker build \
+              <<#parameters.extra-build-args>><<parameters.extra-build-args>><</parameters.extra-build-args>> \
+              -f <<parameters.path>>/<<parameters.dockerfile>> \
+              $docker_tag_args \
+              <<parameters.path>>
+
+      - run:
+          name: Push image to Amazon ECR
+          command: |
+            IFS="," read -ra DOCKER_TAGS \<<< "<< parameters.tag >>"
+            for tag in "${DOCKER_TAGS[@]}"; do
+              docker push $<<parameters.account-url>>/<<parameters.repo>>:${tag}
+            done
 
 workflows:
   version: 2.1
@@ -482,6 +603,11 @@ workflows:
           go-test-flags: "-run=TestWindowedPost"
           winpost-test: "1"
           test-suite-name: window-post
+      - test-window-post-dispute:
+          codecov-upload: true
+          go-test-flags: "-run=TestWindowPostDispute"
+          winpost-test: "1"
+          test-suite-name: window-post-dispute
       - test-terminate:
           codecov-upload: true
           go-test-flags: "-run=TestTerminate"
@@ -502,6 +628,7 @@ workflows:
           test-suite-name: conformance-bleeding-edge
           packages: "./conformance"
           vectors-branch: master
+      - build-ntwk-calibration
       - build-lotus-soup
       - trigger-testplans:
           filters:
@@ -537,3 +664,8 @@ workflows:
             tags:
               only:
                 - /^v\d+\.\d+\.\d+$/
+      - build-and-push-image:
+          dockerfile: Dockerfile.lotus
+          path: .
+          repo: lotus-dev
+          tag: '${CIRCLE_SHA1:0:8}'

.gitmodules

@@ -7,6 +7,3 @@
 [submodule "extern/test-vectors"]
 	path = extern/test-vectors
 	url = https://github.com/filecoin-project/test-vectors.git
-[submodule "extern/blst"]
-	path = extern/blst
-	url = https://github.com/supranational/blst.git

Dockerfile.lotus

@@ -0,0 +1,74 @@
+FROM golang:1.15.6 AS builder-deps
+MAINTAINER Lotus Development Team
+
+RUN apt-get update && apt-get install -y ca-certificates build-essential clang ocl-icd-opencl-dev ocl-icd-libopencl1 jq libhwloc-dev
+
+ARG RUST_VERSION=nightly
+ENV XDG_CACHE_HOME="/tmp"
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH
+
+RUN wget "https://static.rust-lang.org/rustup/dist/x86_64-unknown-linux-gnu/rustup-init"; \
+    chmod +x rustup-init; \
+    ./rustup-init -y --no-modify-path --profile minimal --default-toolchain $RUST_VERSION; \
+    rm rustup-init; \
+    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
+    rustup --version; \
+    cargo --version; \
+    rustc --version;
+
+
+FROM builder-deps AS builder-local
+MAINTAINER Lotus Development Team
+
+COPY ./ /opt/filecoin
+WORKDIR /opt/filecoin
+RUN make clean deps
+
+
+FROM builder-local AS builder
+MAINTAINER Lotus Development Team
+
+WORKDIR /opt/filecoin
+
+ARG RUSTFLAGS=""
+ARG GOFLAGS=""
+
+RUN make deps lotus lotus-miner lotus-worker lotus-shed lotus-chainwatch lotus-stats
+
+
+FROM ubuntu:20.04 AS base
+MAINTAINER Lotus Development Team
+
+# Base resources
+COPY --from=builder /etc/ssl/certs                           /etc/ssl/certs
+COPY --from=builder /lib/x86_64-linux-gnu/libdl.so.2         /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/librt.so.1         /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/libgcc_s.so.1      /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/libutil.so.1       /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libltdl.so.7   /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libnuma.so.1   /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libhwloc.so.5  /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /lib/
+
+RUN useradd -r -u 532 -U fc
+
+
+FROM base AS lotus
+MAINTAINER Lotus Development Team
+
+COPY --from=builder /opt/filecoin/lotus      /usr/local/bin/
+COPY --from=builder /opt/filecoin/lotus-shed /usr/local/bin/
+
+ENV FILECOIN_PARAMETER_CACHE /var/tmp/filecoin-proof-parameters
+ENV LOTUS_PATH /var/lib/lotus
+
+RUN mkdir /var/lib/lotus /var/tmp/filecoin-proof-parameters && chown fc /var/lib/lotus /var/tmp/filecoin-proof-parameters
+
+USER fc
+
+ENTRYPOINT ["/usr/local/bin/lotus"]
+
+CMD ["-help"]

Makefile

@@ -66,6 +66,9 @@ debug: lotus lotus-miner lotus-worker lotus-seed
 calibnet: GOFLAGS+=-tags=calibnet
 calibnet: lotus lotus-miner lotus-worker lotus-seed
 
+nerpanet: GOFLAGS+=-tags=nerpanet
+nerpanet: lotus lotus-miner lotus-worker lotus-seed
+
 lotus: $(BUILD_DEPS)
 	rm -f lotus
 	go build $(GOFLAGS) -o lotus ./cmd/lotus

api/api_full.go

@@ -950,6 +950,7 @@ const (
 
 type Deadline struct {
 	PostSubmissions      bitfield.BitField
+	DisputableProofCount uint64
 }
 
 type Partition struct {

api/test/ccupgrade.go

@@ -17,9 +17,9 @@ import (
 
 func TestCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration) {
 	for _, height := range []abi.ChainEpoch{
-		1,    // before
+		2,    // before
 		162,  // while sealing
-		520,  // after upgrade deal
+		530,  // after upgrade deal
 		5000, // after
 	} {
 		height := height // make linters happy by copying
@@ -31,7 +31,7 @@ func TestCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration) {
 
 func testCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration, upgradeHeight abi.ChainEpoch) {
 	ctx := context.Background()
-	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV2At(upgradeHeight)}, OneMiner)
+	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV3At(upgradeHeight)}, OneMiner)
 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]
 

api/test/deals.go

@@ -159,6 +159,21 @@ func TestSecondDealRetrieval(t *testing.T, b APIBuilder, blocktime time.Duration
 	}
 }
 
+func TestZeroPricePerByteRetrievalDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()
+
+	// Set price-per-byte to zero
+	ask, err := s.miner.MarketGetRetrievalAsk(s.ctx)
+	require.NoError(t, err)
+
+	ask.PricePerByte = abi.NewTokenAmount(0)
+	err = s.miner.MarketSetRetrievalAsk(s.ctx, ask)
+	require.NoError(t, err)
+
+	MakeDeal(t, s.ctx, 6, s.client, s.miner, false, false, startEpoch)
+}
+
 func startDeal(t *testing.T, ctx context.Context, miner TestStorageNode, client api.FullNode, fcid cid.Cid, fastRet bool, startEpoch abi.ChainEpoch) *cid.Cid {
 	maddr, err := miner.ActorAddress(ctx)
 	if err != nil {

api/test/test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
 	"testing"
 	"time"
 
@@ -48,6 +49,7 @@ type TestStorageNode struct {
 	ListenAddr multiaddr.Multiaddr
 
 	MineOne func(context.Context, miner.MineReq) error
+	Stop    func(context.Context) error
 }
 
 var PresealGenesis = -1
@@ -109,14 +111,19 @@ var OneMiner = []StorageMiner{{Full: 0, Preseal: PresealGenesis}}
 var OneFull = DefaultFullOpts(1)
 var TwoFull = DefaultFullOpts(2)
 
-var FullNodeWithActorsV2At = func(upgradeHeight abi.ChainEpoch) FullNodeOpts {
+var FullNodeWithActorsV3At = func(upgradeHeight abi.ChainEpoch) FullNodeOpts {
 	return FullNodeOpts{
 		Opts: func(nodes []TestNode) node.Option {
 			return node.Override(new(stmgr.UpgradeSchedule), stmgr.UpgradeSchedule{{
-				// Skip directly to tape height so precommits work.
-				Network:   network.Version5,
-				Height:    upgradeHeight,
+				// prepare for upgrade.
+				Network:   network.Version9,
+				Height:    1,
 				Migration: stmgr.UpgradeActorsV2,
+			}, {
+				// Skip directly to tape height so precommits work.
+				Network:   network.Version10,
+				Height:    upgradeHeight,
+				Migration: stmgr.UpgradeActorsV3,
 			}})
 		},
 	}
@@ -157,7 +164,11 @@ func (ts *testSuite) testVersion(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	require.Equal(t, v.Version, build.BuildVersion)
+	versions := strings.Split(v.Version, "+")
+	if len(versions) <= 0 {
+		t.Fatal("empty version")
+	}
+	require.Equal(t, versions[0], build.BuildVersion)
 }
 
 func (ts *testSuite) testSearchMsg(t *testing.T) {

api/test/window_post.go

@@ -16,13 +16,18 @@ import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-bitfield"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/crypto"
+	"github.com/filecoin-project/go-state-types/dline"
 	"github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/lotus/extern/sector-storage/mock"
 	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
+	proof3 "github.com/filecoin-project/specs-actors/v3/actors/runtime/proof"
 	"github.com/filecoin-project/specs-storage/storage"
 
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors"
+	minerActor "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	bminer "github.com/filecoin-project/lotus/miner"
 	"github.com/filecoin-project/lotus/node/impl"
@@ -201,7 +206,7 @@ func pledgeSectors(t *testing.T, ctx context.Context, miner TestStorageNode, n,
 
 func TestWindowPost(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
 	for _, height := range []abi.ChainEpoch{
-		1,    // before
+		2,    // before
 		162,  // while sealing
 		5000, // while proving
 	} {
@@ -218,7 +223,7 @@ func testWindowPostUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration,
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV2At(upgradeHeight)}, OneMiner)
+	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV3At(upgradeHeight)}, OneMiner)
 
 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]
@@ -437,7 +442,7 @@ func TestTerminate(t *testing.T, b APIBuilder, blocktime time.Duration) {
 
 	nSectors := uint64(2)
 
-	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV2At(1)}, []StorageMiner{{Full: 0, Preseal: int(nSectors)}})
+	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV3At(2)}, []StorageMiner{{Full: 0, Preseal: int(nSectors)}})
 
 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]
@@ -602,3 +607,420 @@ loop:
 	require.Equal(t, p.MinerPower, p.TotalPower)
 	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)*(nSectors-1)))
 }
+
+func TestWindowPostDispute(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// First, we configure two miners. After sealing, we're going to turn off the first miner so
+	// it doesn't submit proofs.
+	///
+	// Then we're going to manually submit bad proofs.
+	n, sn := b(t, []FullNodeOpts{
+		FullNodeWithActorsV3At(2),
+	}, []StorageMiner{
+		{Full: 0, Preseal: PresealGenesis},
+		{Full: 0},
+	})
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	chainMiner := sn[0]
+	evilMiner := sn[1]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := chainMiner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+
+		if err := evilMiner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	defaultFrom, err := client.WalletDefaultAddress(ctx)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	// Mine with the _second_ node (the good one).
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := chainMiner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	// Give the chain miner enough sectors to win every block.
+	pledgeSectors(t, ctx, chainMiner, 10, 0, nil)
+	// And the evil one 1 sector. No cookie for you.
+	pledgeSectors(t, ctx, evilMiner, 1, 0, nil)
+
+	// Let the evil miner's sectors gain power.
+	evilMinerAddr, err := evilMiner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	di, err := client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Printf("Running one proving period\n")
+	fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod*2)
+
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > di.PeriodStart+di.WPoStProvingPeriod*2 {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	p, err := client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	ssz, err := evilMiner.ActorSectorSize(ctx, evilMinerAddr)
+	require.NoError(t, err)
+
+	// make sure it has gained power.
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)))
+
+	evilSectors, err := evilMiner.SectorsList(ctx)
+	require.NoError(t, err)
+	evilSectorNo := evilSectors[0] // only one.
+	evilSectorLoc, err := client.StateSectorPartition(ctx, evilMinerAddr, evilSectorNo, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Println("evil miner stopping")
+
+	// Now stop the evil miner, and start manually submitting bad proofs.
+	require.NoError(t, evilMiner.Stop(ctx))
+
+	fmt.Println("evil miner stopped")
+
+	// Wait until we need to prove our sector.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index == evilSectorLoc.Deadline {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	err = submitBadProof(ctx, client, evilMinerAddr, di, evilSectorLoc.Deadline, evilSectorLoc.Partition)
+	require.NoError(t, err, "evil proof not accepted")
+
+	// Wait until after the proving period.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index != evilSectorLoc.Deadline {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	fmt.Println("accepted evil proof")
+
+	// Make sure the evil node didn't lose any power.
+	p, err = client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)))
+
+	// OBJECTION! The good miner files a DISPUTE!!!!
+	{
+		params := &minerActor.DisputeWindowedPoStParams{
+			Deadline:  evilSectorLoc.Deadline,
+			PoStIndex: 0,
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     evilMinerAddr,
+			Method: minerActor.Methods.DisputeWindowedPoSt,
+			Params: enc,
+			Value:  types.NewInt(0),
+			From:   defaultFrom,
+		}
+		sm, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.NoError(t, err)
+
+		fmt.Println("waiting dispute")
+		rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence)
+		require.NoError(t, err)
+		require.Zero(t, rec.Receipt.ExitCode, "dispute not accepted: %s", rec.Receipt.ExitCode.Error())
+	}
+
+	// Objection SUSTAINED!
+	// Make sure the evil node lost power.
+	p, err = client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.True(t, p.MinerPower.RawBytePower.IsZero())
+
+	// Now we begin the redemption arc.
+	require.True(t, p.MinerPower.RawBytePower.IsZero())
+
+	// First, recover the sector.
+
+	{
+		minerInfo, err := client.StateMinerInfo(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+
+		params := &minerActor.DeclareFaultsRecoveredParams{
+			Recoveries: []minerActor.RecoveryDeclaration{{
+				Deadline:  evilSectorLoc.Deadline,
+				Partition: evilSectorLoc.Partition,
+				Sectors:   bitfield.NewFromSet([]uint64{uint64(evilSectorNo)}),
+			}},
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     evilMinerAddr,
+			Method: minerActor.Methods.DeclareFaultsRecovered,
+			Params: enc,
+			Value:  types.FromFil(30), // repay debt.
+			From:   minerInfo.Owner,
+		}
+		sm, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.NoError(t, err)
+
+		rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence)
+		require.NoError(t, err)
+		require.Zero(t, rec.Receipt.ExitCode, "recovery not accepted: %s", rec.Receipt.ExitCode.Error())
+	}
+
+	// Then wait for the deadline.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index == evilSectorLoc.Deadline {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	// Now try to be evil again
+	err = submitBadProof(ctx, client, evilMinerAddr, di, evilSectorLoc.Deadline, evilSectorLoc.Partition)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "message execution failed: exit 16, reason: window post failed: invalid PoSt")
+
+	// It didn't work because we're recovering.
+}
+
+func submitBadProof(
+	ctx context.Context,
+	client api.FullNode, maddr address.Address,
+	di *dline.Info, dlIdx, partIdx uint64,
+) error {
+	head, err := client.ChainHead(ctx)
+	if err != nil {
+		return err
+	}
+
+	from, err := client.WalletDefaultAddress(ctx)
+	if err != nil {
+		return err
+	}
+
+	minerInfo, err := client.StateMinerInfo(ctx, maddr, head.Key())
+	if err != nil {
+		return err
+	}
+
+	commEpoch := di.Open
+	commRand, err := client.ChainGetRandomnessFromTickets(
+		ctx, head.Key(), crypto.DomainSeparationTag_PoStChainCommit,
+		commEpoch, nil,
+	)
+	if err != nil {
+		return err
+	}
+	params := &minerActor.SubmitWindowedPoStParams{
+		ChainCommitEpoch: commEpoch,
+		ChainCommitRand:  commRand,
+		Deadline:         dlIdx,
+		Partitions:       []minerActor.PoStPartition{{Index: partIdx}},
+		Proofs: []proof3.PoStProof{{
+			PoStProof:  minerInfo.WindowPoStProofType,
+			ProofBytes: []byte("I'm soooo very evil."),
+		}},
+	}
+
+	enc, aerr := actors.SerializeParams(params)
+	if aerr != nil {
+		return aerr
+	}
+
+	msg := &types.Message{
+		To:     maddr,
+		Method: minerActor.Methods.SubmitWindowedPoSt,
+		Params: enc,
+		Value:  types.NewInt(0),
+		From:   from,
+	}
+	sm, err := client.MpoolPushMessage(ctx, msg, nil)
+	if err != nil {
+		return err
+	}
+
+	rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence)
+	if err != nil {
+		return err
+	}
+	if rec.Receipt.ExitCode.IsError() {
+		return rec.Receipt.ExitCode
+	}
+	return nil
+}
+
+func TestWindowPostDisputeFails(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithActorsV3At(2)}, OneMiner)
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := miner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	defaultFrom, err := client.WalletDefaultAddress(ctx)
+	require.NoError(t, err)
+
+	maddr, err := miner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	// Mine with the _second_ node (the good one).
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := miner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	pledgeSectors(t, ctx, miner, 10, 0, nil)
+
+	di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Printf("Running one proving period\n")
+	fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod*2)
+
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > di.PeriodStart+di.WPoStProvingPeriod*2 {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	ssz, err := miner.ActorSectorSize(ctx, maddr)
+	require.NoError(t, err)
+	expectedPower := types.NewInt(uint64(ssz) * (GenesisPreseals + 10))
+
+	p, err := client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	// make sure it has gained power.
+	require.Equal(t, p.MinerPower.RawBytePower, expectedPower)
+
+	// Wait until a proof has been submitted.
+	var targetDeadline uint64
+waitForProof:
+	for {
+		deadlines, err := client.StateMinerDeadlines(ctx, maddr, types.EmptyTSK)
+		require.NoError(t, err)
+		for dlIdx, dl := range deadlines {
+			nonEmpty, err := dl.PostSubmissions.IsEmpty()
+			require.NoError(t, err)
+			if nonEmpty {
+				targetDeadline = uint64(dlIdx)
+				break waitForProof
+			}
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	for {
+		di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+		require.NoError(t, err)
+		// wait until the deadline finishes.
+		if di.Index == ((targetDeadline + 1) % di.WPoStPeriodDeadlines) {
+			break
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	// Try to object to the proof. This should fail.
+	{
+		params := &minerActor.DisputeWindowedPoStParams{
+			Deadline:  targetDeadline,
+			PoStIndex: 0,
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     maddr,
+			Method: minerActor.Methods.DisputeWindowedPoSt,
+			Params: enc,
+			Value:  types.NewInt(0),
+			From:   defaultFrom,
+		}
+		_, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "failed to dispute valid post (RetCode=16)")
+	}
+}

build/bootstrap/nerpanet.pi

@@ -0,0 +1,4 @@
+/dns4/bootstrap-0.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWNfuGjtzWTVz8eJGZ2C3aJg2xLqorhsagu4LTWw6CwpK9
+/dns4/bootstrap-1.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWDfsxYk7dC6NNsHqZqqyMJCzkjZuXhjsmqBk3TUCBZLga
+/dns4/bootstrap-2.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWRZAGHmCCaa2gkYmnC4Q2TEwHGFSh6Fh1FFJ7RSXak5yN
+/dns4/bootstrap-3.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWBFxEigSKLvxJVdw3JziC9ePHHnyAn5LifWSqg2kttcth

build/params_2k.go

@@ -27,6 +27,8 @@ const UpgradePersianHeight = 25
 const UpgradeOrangeHeight = 27
 const UpgradeClausHeight = 30
 
+const UpgradeActorsV3Height = 35
+
 var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,
 }

build/params_calibnet.go

@@ -28,9 +28,6 @@ var UpgradeActorsV2Height = abi.ChainEpoch(30)
 
 const UpgradeTapeHeight = 60
 
-// This signals our tentative epoch for mainnet launch. Can make it later, but not earlier.
-// Miners, clients, developers, custodians all need time to prepare.
-// We still have upgrades and state changes to do, but can happen after signaling timing here.
 const UpgradeLiftoffHeight = -5
 
 const UpgradeKumquatHeight = 90
@@ -44,6 +41,9 @@ const UpgradeClausHeight = 161386
 // 2021-01-17T19:00:00Z
 const UpgradeOrangeHeight = 250666
 
+// 2021-01-28T21:00:00Z
+const UpgradeActorsV3Height = 282586
+
 func init() {
 	policy.SetConsensusMinerMinPower(abi.NewStoragePower(10 << 30))
 	policy.SetSupportedProofTypes(
@@ -55,6 +55,8 @@ func init() {
 	SetAddressNetwork(address.Testnet)
 
 	Devnet = true
+
+	BuildType = BuildCalibnet
 }
 
 const BlockDelaySecs = uint64(builtin2.EpochDurationSeconds)

build/params_mainnet.go

@@ -2,6 +2,7 @@
 // +build !2k
 // +build !testground
 // +build !calibnet
+// +build !nerpanet
 
 package build
 
@@ -50,6 +51,9 @@ const UpgradeOrangeHeight = 336458
 // 2020-12-22T02:00:00Z
 const UpgradeClausHeight = 343200
 
+// TODO
+const UpgradeActorsV3Height = 999999999
+
 func init() {
 	policy.SetConsensusMinerMinPower(abi.NewStoragePower(10 << 40))
 
@@ -58,6 +62,8 @@ func init() {
 	}
 
 	Devnet = false
+
+	BuildType = BuildMainnet
 }
 
 const BlockDelaySecs = uint64(builtin2.EpochDurationSeconds)

build/params_nerpanet.go

@@ -0,0 +1,74 @@
+// +build nerpanet
+
+package build
+
+import (
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/lotus/chain/actors/policy"
+
+	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+)
+
+var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
+	0: DrandMainnet,
+}
+
+const BootstrappersFile = "nerpanet.pi"
+const GenesisFile = "nerpanet.car"
+
+const UpgradeBreezeHeight = -1
+const BreezeGasTampingDuration = 0
+
+const UpgradeSmokeHeight = -1
+
+const UpgradeIgnitionHeight = -2
+const UpgradeRefuelHeight = -3
+
+const UpgradeTapeHeight = -4
+
+const UpgradeLiftoffHeight = -5
+const UpgradeActorsV2Height = 120 // critical: the network can bootstrap from v1 only
+
+const UpgradeKumquatHeight = -6
+
+const UpgradeCalicoHeight = 999999999
+const UpgradePersianHeight = UpgradeCalicoHeight + (builtin2.EpochsInHour * 60)
+
+const UpgradeOrangeHeight = 9999999999
+
+// 2020-12-22T02:00:00Z
+const UpgradeClausHeight = 99999999999
+
+// TODO
+const UpgradeActorsV3Height = 999999999999
+
+func init() {
+	// Minimum block production power is set to 4 TiB
+	// Rationale is to discourage small-scale miners from trying to take over the network
+	// One needs to invest in ~2.3x the compute to break consensus, making it not worth it
+	//
+	// DOWNSIDE: the fake-seals need to be kept alive/protected, otherwise network will seize
+	//
+	policy.SetConsensusMinerMinPower(abi.NewStoragePower(4 << 40))
+
+	policy.SetSupportedProofTypes(
+		abi.RegisteredSealProof_StackedDrg512MiBV1,
+		abi.RegisteredSealProof_StackedDrg32GiBV1,
+		abi.RegisteredSealProof_StackedDrg64GiBV1,
+	)
+
+	// Lower the most time-consuming parts of PoRep
+	policy.SetPreCommitChallengeDelay(10)
+
+	// TODO - make this a variable
+	//miner.WPoStChallengeLookback = abi.ChainEpoch(2)
+
+	Devnet = false
+}
+
+const BlockDelaySecs = uint64(builtin2.EpochDurationSeconds)
+
+const PropagationDelaySecs = uint64(6)
+
+// BootstrapPeerThreshold is the minimum number peers we need to track for a sync worker to start
+const BootstrapPeerThreshold = 4

build/params_testground.go

@@ -90,8 +90,9 @@ var (
 	UpgradeKumquatHeight  abi.ChainEpoch = -6
 	UpgradeCalicoHeight   abi.ChainEpoch = -7
 	UpgradePersianHeight  abi.ChainEpoch = -8
-	UpgradeClausHeight    abi.ChainEpoch = -9
-	UpgradeOrangeHeight   abi.ChainEpoch = -10
+	UpgradeOrangeHeight   abi.ChainEpoch = -9
+	UpgradeClausHeight    abi.ChainEpoch = -10
+	UpgradeActorsV3Height abi.ChainEpoch = -11
 
 	DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 		0: DrandMainnet,

build/version.go

@@ -11,18 +11,24 @@ var BuildType int
 
 const (
 	BuildDefault  = 0
-	Build2k      = 0x1
+	BuildMainnet  = 0x1
+	Build2k       = 0x2
 	BuildDebug    = 0x3
+	BuildCalibnet = 0x4
 )
 
 func buildType() string {
 	switch BuildType {
 	case BuildDefault:
 		return ""
-	case BuildDebug:
-		return "+debug"
+	case BuildMainnet:
+		return "+mainnet"
 	case Build2k:
 		return "+2k"
+	case BuildDebug:
+		return "+debug"
+	case BuildCalibnet:
+		return "+calibnet"
 	default:
 		return "+huh?"
 	}

chain/actors/adt/adt.go

@@ -2,16 +2,9 @@ package adt
 
 import (
 	"github.com/ipfs/go-cid"
-	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/cbor"
-	"github.com/filecoin-project/go-state-types/network"
-
-	"github.com/filecoin-project/lotus/chain/actors"
-
-	adt0 "github.com/filecoin-project/specs-actors/actors/util/adt"
-	adt2 "github.com/filecoin-project/specs-actors/v2/actors/util/adt"
 )
 
 type Map interface {
@@ -24,26 +17,6 @@ type Map interface {
 	ForEach(v cbor.Unmarshaler, fn func(key string) error) error
 }
 
-func AsMap(store Store, root cid.Cid, version actors.Version) (Map, error) {
-	switch version {
-	case actors.Version0:
-		return adt0.AsMap(store, root)
-	case actors.Version2:
-		return adt2.AsMap(store, root)
-	}
-	return nil, xerrors.Errorf("unknown network version: %d", version)
-}
-
-func NewMap(store Store, version actors.Version) (Map, error) {
-	switch version {
-	case actors.Version0:
-		return adt0.MakeEmptyMap(store), nil
-	case actors.Version2:
-		return adt2.MakeEmptyMap(store), nil
-	}
-	return nil, xerrors.Errorf("unknown network version: %d", version)
-}
-
 type Array interface {
 	Root() (cid.Cid, error)
 
@@ -54,23 +27,3 @@ type Array interface {
 
 	ForEach(v cbor.Unmarshaler, fn func(idx int64) error) error
 }
-
-func AsArray(store Store, root cid.Cid, version network.Version) (Array, error) {
-	switch actors.VersionForNetwork(version) {
-	case actors.Version0:
-		return adt0.AsArray(store, root)
-	case actors.Version2:
-		return adt2.AsArray(store, root)
-	}
-	return nil, xerrors.Errorf("unknown network version: %d", version)
-}
-
-func NewArray(store Store, version actors.Version) (Array, error) {
-	switch version {
-	case actors.Version0:
-		return adt0.MakeEmptyArray(store), nil
-	case actors.Version2:
-		return adt2.MakeEmptyArray(store), nil
-	}
-	return nil, xerrors.Errorf("unknown network version: %d", version)
-}

chain/actors/builtin/account/account.go

@@ -13,6 +13,7 @@ import (
 
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 )
 
 func init() {
@@ -22,9 +23,12 @@ func init() {
 	builtin.RegisterActorState(builtin2.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
-var Methods = builtin2.MethodsAccount
+var Methods = builtin3.MethodsAccount
 
 func Load(store adt.Store, act *types.Actor) (State, error) {
 	switch act.Code {
@@ -32,6 +36,8 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load0(store, act.Head)
 	case builtin2.AccountActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.AccountActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/account/v3.go

@@ -0,0 +1,30 @@
+package account
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	account3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/account"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	account3.State
+	store adt.Store
+}
+
+func (s *state3) PubkeyAddress() (address.Address, error) {
+	return s.Address, nil
+}

chain/actors/builtin/builtin.go

@@ -2,12 +2,12 @@ package builtin
 
 import (
 	"github.com/filecoin-project/go-address"
-	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
-	smoothing2 "github.com/filecoin-project/specs-actors/v2/actors/util/smoothing"
 	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
+	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/cbor"
@@ -15,9 +15,12 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/types"
 
+	smoothing0 "github.com/filecoin-project/specs-actors/actors/util/smoothing"
+	smoothing2 "github.com/filecoin-project/specs-actors/v2/actors/util/smoothing"
+	smoothing3 "github.com/filecoin-project/specs-actors/v3/actors/util/smoothing"
+
 	miner0 "github.com/filecoin-project/specs-actors/actors/builtin/miner"
 	proof0 "github.com/filecoin-project/specs-actors/actors/runtime/proof"
-	smoothing0 "github.com/filecoin-project/specs-actors/actors/util/smoothing"
 )
 
 var SystemActorAddr = builtin0.SystemActorAddr
@@ -38,11 +41,12 @@ const (
 )
 
 const (
-	MethodSend        = builtin2.MethodSend
-	MethodConstructor = builtin2.MethodConstructor
+	MethodSend        = builtin3.MethodSend
+	MethodConstructor = builtin3.MethodConstructor
 )
 
-// TODO: Why does actors have 2 different versions of this?
+// These are all just type aliases across actor versions 0, 2, & 3. In the future, that might change
+// and we might need to do something fancier.
 type SectorInfo = proof0.SectorInfo
 type PoStProof = proof0.PoStProof
 type FilterEstimate = smoothing0.FilterEstimate
@@ -51,13 +55,17 @@ func FromV0FilterEstimate(v0 smoothing0.FilterEstimate) FilterEstimate {
 	return (FilterEstimate)(v0)
 }
 
-// Doesn't change between actors v0 and v1
+// Doesn't change between actors v0, v2, and v3.
 func QAPowerForWeight(size abi.SectorSize, duration abi.ChainEpoch, dealWeight, verifiedWeight abi.DealWeight) abi.StoragePower {
 	return miner0.QAPowerForWeight(size, duration, dealWeight, verifiedWeight)
 }
 
-func FromV2FilterEstimate(v1 smoothing2.FilterEstimate) FilterEstimate {
-	return (FilterEstimate)(v1)
+func FromV2FilterEstimate(v2 smoothing2.FilterEstimate) FilterEstimate {
+	return (FilterEstimate)(v2)
+}
+
+func FromV3FilterEstimate(v3 smoothing3.FilterEstimate) FilterEstimate {
+	return (FilterEstimate)(v3)
 }
 
 type ActorStateLoader func(store adt.Store, root cid.Cid) (cbor.Marshaler, error)
@@ -82,30 +90,42 @@ func ActorNameByCode(c cid.Cid) string {
 		return builtin0.ActorNameByCode(c)
 	case builtin2.IsBuiltinActor(c):
 		return builtin2.ActorNameByCode(c)
+	case builtin3.IsBuiltinActor(c):
+		return builtin3.ActorNameByCode(c)
 	default:
 		return "<unknown>"
 	}
 }
 
 func IsBuiltinActor(c cid.Cid) bool {
-	return builtin0.IsBuiltinActor(c) || builtin2.IsBuiltinActor(c)
+	return builtin0.IsBuiltinActor(c) ||
+		builtin2.IsBuiltinActor(c) ||
+		builtin3.IsBuiltinActor(c)
 }
 
 func IsAccountActor(c cid.Cid) bool {
-	return c == builtin0.AccountActorCodeID || c == builtin2.AccountActorCodeID
+	return c == builtin0.AccountActorCodeID ||
+		c == builtin2.AccountActorCodeID ||
+		c == builtin3.AccountActorCodeID
 }
 
 func IsStorageMinerActor(c cid.Cid) bool {
-	return c == builtin0.StorageMinerActorCodeID || c == builtin2.StorageMinerActorCodeID
+	return c == builtin0.StorageMinerActorCodeID ||
+		c == builtin2.StorageMinerActorCodeID ||
+		c == builtin3.StorageMinerActorCodeID
 }
 
 func IsMultisigActor(c cid.Cid) bool {
-	return c == builtin0.MultisigActorCodeID || c == builtin2.MultisigActorCodeID
+	return c == builtin0.MultisigActorCodeID ||
+		c == builtin2.MultisigActorCodeID ||
+		c == builtin3.MultisigActorCodeID
 
 }
 
 func IsPaymentChannelActor(c cid.Cid) bool {
-	return c == builtin0.PaymentChannelActorCodeID || c == builtin2.PaymentChannelActorCodeID
+	return c == builtin0.PaymentChannelActorCodeID ||
+		c == builtin2.PaymentChannelActorCodeID ||
+		c == builtin3.PaymentChannelActorCodeID
 }
 
 func makeAddress(addr string) address.Address {

chain/actors/builtin/cron/cron.go

@@ -1,10 +1,10 @@
 package cron
 
 import (
-	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 )
 
 var (
-	Address = builtin2.CronActorAddr
-	Methods = builtin2.MethodsCron
+	Address = builtin3.CronActorAddr
+	Methods = builtin3.MethodsCron
 )

chain/actors/builtin/init/init.go

@@ -15,6 +15,7 @@ import (
 
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 )
 
 func init() {
@@ -24,11 +25,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 var (
-	Address = builtin2.InitActorAddr
-	Methods = builtin2.MethodsInit
+	Address = builtin3.InitActorAddr
+	Methods = builtin3.MethodsInit
 )
 
 func Load(store adt.Store, act *types.Actor) (State, error) {
@@ -37,6 +41,8 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load0(store, act.Head)
 	case builtin2.InitActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.InitActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/init/v3.go

@@ -0,0 +1,86 @@
+package init
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
+
+	init3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/init"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	init3.State
+	store adt.Store
+}
+
+func (s *state3) ResolveAddress(address address.Address) (address.Address, bool, error) {
+	return s.State.ResolveAddress(s.store, address)
+}
+
+func (s *state3) MapAddressToNewID(address address.Address) (address.Address, error) {
+	return s.State.MapAddressToNewID(s.store, address)
+}
+
+func (s *state3) ForEachActor(cb func(id abi.ActorID, address address.Address) error) error {
+	addrs, err := adt3.AsMap(s.store, s.State.AddressMap, builtin3.DefaultHamtBitwidth)
+	if err != nil {
+		return err
+	}
+	var actorID cbg.CborInt
+	return addrs.ForEach(&actorID, func(key string) error {
+		addr, err := address.NewFromBytes([]byte(key))
+		if err != nil {
+			return err
+		}
+		return cb(abi.ActorID(actorID), addr)
+	})
+}
+
+func (s *state3) NetworkName() (dtypes.NetworkName, error) {
+	return dtypes.NetworkName(s.State.NetworkName), nil
+}
+
+func (s *state3) SetNetworkName(name string) error {
+	s.State.NetworkName = name
+	return nil
+}
+
+func (s *state3) Remove(addrs ...address.Address) (err error) {
+	m, err := adt3.AsMap(s.store, s.State.AddressMap, builtin3.DefaultHamtBitwidth)
+	if err != nil {
+		return err
+	}
+	for _, addr := range addrs {
+		if err = m.Delete(abi.AddrKey(addr)); err != nil {
+			return xerrors.Errorf("failed to delete entry for address: %s; err: %w", addr, err)
+		}
+	}
+	amr, err := m.Root()
+	if err != nil {
+		return xerrors.Errorf("failed to get address map root: %w", err)
+	}
+	s.State.AddressMap = amr
+	return nil
+}
+
+func (s *state3) addressMap() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.AddressMap, builtin3.DefaultHamtBitwidth)
+}

chain/actors/builtin/market/market.go

@@ -12,6 +12,7 @@ import (
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	market0 "github.com/filecoin-project/specs-actors/actors/builtin/market"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -25,11 +26,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 var (
-	Address = builtin2.StorageMarketActorAddr
-	Methods = builtin2.MethodsMarket
+	Address = builtin3.StorageMarketActorAddr
+	Methods = builtin3.MethodsMarket
 )
 
 func Load(store adt.Store, act *types.Actor) (st State, err error) {
@@ -38,6 +42,8 @@ func Load(store adt.Store, act *types.Actor) (st State, err error) {
 		return load0(store, act.Head)
 	case builtin2.StorageMarketActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.StorageMarketActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/market/v3.go

@@ -0,0 +1,205 @@
+package market
+
+import (
+	"bytes"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/chain/types"
+
+	market3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/market"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	market3.State
+	store adt.Store
+}
+
+func (s *state3) TotalLocked() (abi.TokenAmount, error) {
+	fml := types.BigAdd(s.TotalClientLockedCollateral, s.TotalProviderLockedCollateral)
+	fml = types.BigAdd(fml, s.TotalClientStorageFee)
+	return fml, nil
+}
+
+func (s *state3) BalancesChanged(otherState State) (bool, error) {
+	otherState2, ok := otherState.(*state3)
+	if !ok {
+		// there's no way to compare different versions of the state, so let's
+		// just say that means the state of balances has changed
+		return true, nil
+	}
+	return !s.State.EscrowTable.Equals(otherState2.State.EscrowTable) || !s.State.LockedTable.Equals(otherState2.State.LockedTable), nil
+}
+
+func (s *state3) StatesChanged(otherState State) (bool, error) {
+	otherState2, ok := otherState.(*state3)
+	if !ok {
+		// there's no way to compare different versions of the state, so let's
+		// just say that means the state of balances has changed
+		return true, nil
+	}
+	return !s.State.States.Equals(otherState2.State.States), nil
+}
+
+func (s *state3) States() (DealStates, error) {
+	stateArray, err := adt3.AsArray(s.store, s.State.States, market3.StatesAmtBitwidth)
+	if err != nil {
+		return nil, err
+	}
+	return &dealStates3{stateArray}, nil
+}
+
+func (s *state3) ProposalsChanged(otherState State) (bool, error) {
+	otherState2, ok := otherState.(*state3)
+	if !ok {
+		// there's no way to compare different versions of the state, so let's
+		// just say that means the state of balances has changed
+		return true, nil
+	}
+	return !s.State.Proposals.Equals(otherState2.State.Proposals), nil
+}
+
+func (s *state3) Proposals() (DealProposals, error) {
+	proposalArray, err := adt3.AsArray(s.store, s.State.Proposals, market3.ProposalsAmtBitwidth)
+	if err != nil {
+		return nil, err
+	}
+	return &dealProposals3{proposalArray}, nil
+}
+
+func (s *state3) EscrowTable() (BalanceTable, error) {
+	bt, err := adt3.AsBalanceTable(s.store, s.State.EscrowTable)
+	if err != nil {
+		return nil, err
+	}
+	return &balanceTable3{bt}, nil
+}
+
+func (s *state3) LockedTable() (BalanceTable, error) {
+	bt, err := adt3.AsBalanceTable(s.store, s.State.LockedTable)
+	if err != nil {
+		return nil, err
+	}
+	return &balanceTable3{bt}, nil
+}
+
+func (s *state3) VerifyDealsForActivation(
+	minerAddr address.Address, deals []abi.DealID, currEpoch, sectorExpiry abi.ChainEpoch,
+) (weight, verifiedWeight abi.DealWeight, err error) {
+	w, vw, _, err := market3.ValidateDealsForActivation(&s.State, s.store, deals, minerAddr, sectorExpiry, currEpoch)
+	return w, vw, err
+}
+
+type balanceTable3 struct {
+	*adt3.BalanceTable
+}
+
+func (bt *balanceTable3) ForEach(cb func(address.Address, abi.TokenAmount) error) error {
+	asMap := (*adt3.Map)(bt.BalanceTable)
+	var ta abi.TokenAmount
+	return asMap.ForEach(&ta, func(key string) error {
+		a, err := address.NewFromBytes([]byte(key))
+		if err != nil {
+			return err
+		}
+		return cb(a, ta)
+	})
+}
+
+type dealStates3 struct {
+	adt.Array
+}
+
+func (s *dealStates3) Get(dealID abi.DealID) (*DealState, bool, error) {
+	var deal2 market3.DealState
+	found, err := s.Array.Get(uint64(dealID), &deal2)
+	if err != nil {
+		return nil, false, err
+	}
+	if !found {
+		return nil, false, nil
+	}
+	deal := fromV3DealState(deal2)
+	return &deal, true, nil
+}
+
+func (s *dealStates3) ForEach(cb func(dealID abi.DealID, ds DealState) error) error {
+	var ds1 market3.DealState
+	return s.Array.ForEach(&ds1, func(idx int64) error {
+		return cb(abi.DealID(idx), fromV3DealState(ds1))
+	})
+}
+
+func (s *dealStates3) decode(val *cbg.Deferred) (*DealState, error) {
+	var ds1 market3.DealState
+	if err := ds1.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
+		return nil, err
+	}
+	ds := fromV3DealState(ds1)
+	return &ds, nil
+}
+
+func (s *dealStates3) array() adt.Array {
+	return s.Array
+}
+
+func fromV3DealState(v1 market3.DealState) DealState {
+	return (DealState)(v1)
+}
+
+type dealProposals3 struct {
+	adt.Array
+}
+
+func (s *dealProposals3) Get(dealID abi.DealID) (*DealProposal, bool, error) {
+	var proposal2 market3.DealProposal
+	found, err := s.Array.Get(uint64(dealID), &proposal2)
+	if err != nil {
+		return nil, false, err
+	}
+	if !found {
+		return nil, false, nil
+	}
+	proposal := fromV3DealProposal(proposal2)
+	return &proposal, true, nil
+}
+
+func (s *dealProposals3) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
+	var dp1 market3.DealProposal
+	return s.Array.ForEach(&dp1, func(idx int64) error {
+		return cb(abi.DealID(idx), fromV3DealProposal(dp1))
+	})
+}
+
+func (s *dealProposals3) decode(val *cbg.Deferred) (*DealProposal, error) {
+	var dp1 market3.DealProposal
+	if err := dp1.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
+		return nil, err
+	}
+	dp := fromV3DealProposal(dp1)
+	return &dp, nil
+}
+
+func (s *dealProposals3) array() adt.Array {
+	return s.Array
+}
+
+func fromV3DealProposal(v1 market3.DealProposal) DealProposal {
+	return (DealProposal)(v1)
+}

chain/actors/builtin/miner/miner.go

@@ -2,6 +2,7 @@ package miner
 
 import (
 	"github.com/filecoin-project/go-state-types/big"
+	"github.com/filecoin-project/go-state-types/network"
 	"github.com/ipfs/go-cid"
 	"github.com/libp2p/go-libp2p-core/peer"
 	cbg "github.com/whyrusleeping/cbor-gen"
@@ -21,6 +22,8 @@ import (
 	miner0 "github.com/filecoin-project/specs-actors/actors/builtin/miner"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
 	miner2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/miner"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	miner3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/miner"
 )
 
 func init() {
@@ -30,11 +33,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.StorageMinerActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.StorageMinerActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
-var Methods = builtin2.MethodsMiner
+var Methods = builtin3.MethodsMiner
 
-// Unchanged between v0 and v2 actors
+// Unchanged between v0, v2, and v3 actors
 var WPoStProvingPeriod = miner0.WPoStProvingPeriod
 var WPoStPeriodDeadlines = miner0.WPoStPeriodDeadlines
 var WPoStChallengeWindow = miner0.WPoStChallengeWindow
@@ -53,6 +59,8 @@ func Load(store adt.Store, act *types.Actor) (st State, err error) {
 		return load0(store, act.Head)
 	case builtin2.StorageMinerActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.StorageMinerActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }
@@ -96,9 +104,10 @@ type State interface {
 type Deadline interface {
 	LoadPartition(idx uint64) (Partition, error)
 	ForEachPartition(cb func(idx uint64, part Partition) error) error
-	PostSubmissions() (bitfield.BitField, error)
+	PartitionsPoSted() (bitfield.BitField, error)
 
 	PartitionsChanged(Deadline) (bool, error)
+	DisputableProofCount() (uint64, error)
 }
 
 type Partition interface {
@@ -142,6 +151,60 @@ type DeclareFaultsParams = miner0.DeclareFaultsParams
 type DeclareFaultsRecoveredParams = miner0.DeclareFaultsRecoveredParams
 type SubmitWindowedPoStParams = miner0.SubmitWindowedPoStParams
 type ProveCommitSectorParams = miner0.ProveCommitSectorParams
+type DisputeWindowedPoStParams = miner3.DisputeWindowedPoStParams
+
+func PreferredSealProofTypeFromWindowPoStType(nver network.Version, proof abi.RegisteredPoStProof) (abi.RegisteredSealProof, error) {
+	// We added support for the new proofs in network version 7, and removed support for the old
+	// ones in network version 8.
+	if nver < network.Version7 {
+		switch proof {
+		case abi.RegisteredPoStProof_StackedDrgWindow2KiBV1:
+			return abi.RegisteredSealProof_StackedDrg2KiBV1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow8MiBV1:
+			return abi.RegisteredSealProof_StackedDrg8MiBV1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow512MiBV1:
+			return abi.RegisteredSealProof_StackedDrg512MiBV1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow32GiBV1:
+			return abi.RegisteredSealProof_StackedDrg32GiBV1, nil
+		case abi.RegisteredPoStProof_StackedDrgWindow64GiBV1:
+			return abi.RegisteredSealProof_StackedDrg64GiBV1, nil
+		default:
+			return -1, xerrors.Errorf("unrecognized window post type: %d", proof)
+		}
+	}
+
+	switch proof {
+	case abi.RegisteredPoStProof_StackedDrgWindow2KiBV1:
+		return abi.RegisteredSealProof_StackedDrg2KiBV1_1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow8MiBV1:
+		return abi.RegisteredSealProof_StackedDrg8MiBV1_1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow512MiBV1:
+		return abi.RegisteredSealProof_StackedDrg512MiBV1_1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow32GiBV1:
+		return abi.RegisteredSealProof_StackedDrg32GiBV1_1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow64GiBV1:
+		return abi.RegisteredSealProof_StackedDrg64GiBV1_1, nil
+	default:
+		return -1, xerrors.Errorf("unrecognized window post type: %d", proof)
+	}
+}
+
+func WinningPoStProofTypeFromWindowPoStProofType(nver network.Version, proof abi.RegisteredPoStProof) (abi.RegisteredPoStProof, error) {
+	switch proof {
+	case abi.RegisteredPoStProof_StackedDrgWindow2KiBV1:
+		return abi.RegisteredPoStProof_StackedDrgWinning2KiBV1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow8MiBV1:
+		return abi.RegisteredPoStProof_StackedDrgWinning8MiBV1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow512MiBV1:
+		return abi.RegisteredPoStProof_StackedDrgWinning512MiBV1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow32GiBV1:
+		return abi.RegisteredPoStProof_StackedDrgWinning32GiBV1, nil
+	case abi.RegisteredPoStProof_StackedDrgWindow64GiBV1:
+		return abi.RegisteredPoStProof_StackedDrgWinning64GiBV1, nil
+	default:
+		return -1, xerrors.Errorf("unknown proof type %d", proof)
+	}
+}
 
 type MinerInfo struct {
 	Owner                      address.Address   // Must be an ID-address.
@@ -151,7 +214,7 @@ type MinerInfo struct {
 	WorkerChangeEpoch          abi.ChainEpoch
 	PeerId                     *peer.ID
 	Multiaddrs                 []abi.Multiaddrs
-	SealProofType              abi.RegisteredSealProof
+	WindowPoStProofType        abi.RegisteredPoStProof
 	SectorSize                 abi.SectorSize
 	WindowPoStPartitionSectors uint64
 	ConsensusFaultElapsed      abi.ChainEpoch

chain/actors/builtin/miner/v0.go

@@ -297,6 +297,11 @@ func (s *state0) Info() (MinerInfo, error) {
 		pid = &peerID
 	}
 
+	wpp, err := info.SealProofType.RegisteredWindowPoStProof()
+	if err != nil {
+		return MinerInfo{}, err
+	}
+
 	mi := MinerInfo{
 		Owner:            info.Owner,
 		Worker:           info.Worker,
@@ -307,7 +312,7 @@ func (s *state0) Info() (MinerInfo, error) {
 
 		PeerId:                     pid,
 		Multiaddrs:                 info.Multiaddrs,
-		SealProofType:              info.SealProofType,
+		WindowPoStProofType:        wpp,
 		SectorSize:                 info.SectorSize,
 		WindowPoStPartitionSectors: info.WindowPoStPartitionSectors,
 		ConsensusFaultElapsed:      -1,
@@ -382,10 +387,15 @@ func (d *deadline0) PartitionsChanged(other Deadline) (bool, error) {
 	return !d.Deadline.Partitions.Equals(other0.Deadline.Partitions), nil
 }
 
-func (d *deadline0) PostSubmissions() (bitfield.BitField, error) {
+func (d *deadline0) PartitionsPoSted() (bitfield.BitField, error) {
 	return d.Deadline.PostSubmissions, nil
 }
 
+func (d *deadline0) DisputableProofCount() (uint64, error) {
+	// field doesn't exist until v3
+	return 0, nil
+}
+
 func (p *partition0) AllSectors() (bitfield.BitField, error) {
 	return p.Partition.Sectors, nil
 }

chain/actors/builtin/miner/v2.go

@@ -296,6 +296,11 @@ func (s *state2) Info() (MinerInfo, error) {
 		pid = &peerID
 	}
 
+	wpp, err := info.SealProofType.RegisteredWindowPoStProof()
+	if err != nil {
+		return MinerInfo{}, err
+	}
+
 	mi := MinerInfo{
 		Owner:            info.Owner,
 		Worker:           info.Worker,
@@ -306,7 +311,7 @@ func (s *state2) Info() (MinerInfo, error) {
 
 		PeerId:                     pid,
 		Multiaddrs:                 info.Multiaddrs,
-		SealProofType:              info.SealProofType,
+		WindowPoStProofType:        wpp,
 		SectorSize:                 info.SectorSize,
 		WindowPoStPartitionSectors: info.WindowPoStPartitionSectors,
 		ConsensusFaultElapsed:      info.ConsensusFaultElapsed,
@@ -381,10 +386,15 @@ func (d *deadline2) PartitionsChanged(other Deadline) (bool, error) {
 	return !d.Deadline.Partitions.Equals(other2.Deadline.Partitions), nil
 }
 
-func (d *deadline2) PostSubmissions() (bitfield.BitField, error) {
+func (d *deadline2) PartitionsPoSted() (bitfield.BitField, error) {
 	return d.Deadline.PostSubmissions, nil
 }
 
+func (d *deadline2) DisputableProofCount() (uint64, error) {
+	// field doesn't exist until v3
+	return 0, nil
+}
+
 func (p *partition2) AllSectors() (bitfield.BitField, error) {
 	return p.Partition.Sectors, nil
 }

chain/actors/builtin/miner/v3.go

@@ -0,0 +1,434 @@
+package miner
+
+import (
+	"bytes"
+	"errors"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-bitfield"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/dline"
+	"github.com/ipfs/go-cid"
+	"github.com/libp2p/go-libp2p-core/peer"
+	cbg "github.com/whyrusleeping/cbor-gen"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	miner3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/miner"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	miner3.State
+	store adt.Store
+}
+
+type deadline3 struct {
+	miner3.Deadline
+	store adt.Store
+}
+
+type partition3 struct {
+	miner3.Partition
+	store adt.Store
+}
+
+func (s *state3) AvailableBalance(bal abi.TokenAmount) (available abi.TokenAmount, err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			err = xerrors.Errorf("failed to get available balance: %w", r)
+			available = abi.NewTokenAmount(0)
+		}
+	}()
+	// this panics if the miner doesnt have enough funds to cover their locked pledge
+	available, err = s.GetAvailableBalance(bal)
+	return available, err
+}
+
+func (s *state3) VestedFunds(epoch abi.ChainEpoch) (abi.TokenAmount, error) {
+	return s.CheckVestedFunds(s.store, epoch)
+}
+
+func (s *state3) LockedFunds() (LockedFunds, error) {
+	return LockedFunds{
+		VestingFunds:             s.State.LockedFunds,
+		InitialPledgeRequirement: s.State.InitialPledge,
+		PreCommitDeposits:        s.State.PreCommitDeposits,
+	}, nil
+}
+
+func (s *state3) FeeDebt() (abi.TokenAmount, error) {
+	return s.State.FeeDebt, nil
+}
+
+func (s *state3) InitialPledge() (abi.TokenAmount, error) {
+	return s.State.InitialPledge, nil
+}
+
+func (s *state3) PreCommitDeposits() (abi.TokenAmount, error) {
+	return s.State.PreCommitDeposits, nil
+}
+
+func (s *state3) GetSector(num abi.SectorNumber) (*SectorOnChainInfo, error) {
+	info, ok, err := s.State.GetSector(s.store, num)
+	if !ok || err != nil {
+		return nil, err
+	}
+
+	ret := fromV3SectorOnChainInfo(*info)
+	return &ret, nil
+}
+
+func (s *state3) FindSector(num abi.SectorNumber) (*SectorLocation, error) {
+	dlIdx, partIdx, err := s.State.FindSector(s.store, num)
+	if err != nil {
+		return nil, err
+	}
+	return &SectorLocation{
+		Deadline:  dlIdx,
+		Partition: partIdx,
+	}, nil
+}
+
+func (s *state3) NumLiveSectors() (uint64, error) {
+	dls, err := s.State.LoadDeadlines(s.store)
+	if err != nil {
+		return 0, err
+	}
+	var total uint64
+	if err := dls.ForEach(s.store, func(dlIdx uint64, dl *miner3.Deadline) error {
+		total += dl.LiveSectors
+		return nil
+	}); err != nil {
+		return 0, err
+	}
+	return total, nil
+}
+
+// GetSectorExpiration returns the effective expiration of the given sector.
+//
+// If the sector does not expire early, the Early expiration field is 0.
+func (s *state3) GetSectorExpiration(num abi.SectorNumber) (*SectorExpiration, error) {
+	dls, err := s.State.LoadDeadlines(s.store)
+	if err != nil {
+		return nil, err
+	}
+	// NOTE: this can be optimized significantly.
+	// 1. If the sector is non-faulty, it will either expire on-time (can be
+	// learned from the sector info), or in the next quantized expiration
+	// epoch (i.e., the first element in the partition's expiration queue.
+	// 2. If it's faulty, it will expire early within the first 14 entries
+	// of the expiration queue.
+	stopErr := errors.New("stop")
+	out := SectorExpiration{}
+	err = dls.ForEach(s.store, func(dlIdx uint64, dl *miner3.Deadline) error {
+		partitions, err := dl.PartitionsArray(s.store)
+		if err != nil {
+			return err
+		}
+		quant := s.State.QuantSpecForDeadline(dlIdx)
+		var part miner3.Partition
+		return partitions.ForEach(&part, func(partIdx int64) error {
+			if found, err := part.Sectors.IsSet(uint64(num)); err != nil {
+				return err
+			} else if !found {
+				return nil
+			}
+			if found, err := part.Terminated.IsSet(uint64(num)); err != nil {
+				return err
+			} else if found {
+				// already terminated
+				return stopErr
+			}
+
+			q, err := miner3.LoadExpirationQueue(s.store, part.ExpirationsEpochs, quant, miner3.PartitionExpirationAmtBitwidth)
+			if err != nil {
+				return err
+			}
+			var exp miner3.ExpirationSet
+			return q.ForEach(&exp, func(epoch int64) error {
+				if early, err := exp.EarlySectors.IsSet(uint64(num)); err != nil {
+					return err
+				} else if early {
+					out.Early = abi.ChainEpoch(epoch)
+					return nil
+				}
+				if onTime, err := exp.OnTimeSectors.IsSet(uint64(num)); err != nil {
+					return err
+				} else if onTime {
+					out.OnTime = abi.ChainEpoch(epoch)
+					return stopErr
+				}
+				return nil
+			})
+		})
+	})
+	if err == stopErr {
+		err = nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	if out.Early == 0 && out.OnTime == 0 {
+		return nil, xerrors.Errorf("failed to find sector %d", num)
+	}
+	return &out, nil
+}
+
+func (s *state3) GetPrecommittedSector(num abi.SectorNumber) (*SectorPreCommitOnChainInfo, error) {
+	info, ok, err := s.State.GetPrecommittedSector(s.store, num)
+	if !ok || err != nil {
+		return nil, err
+	}
+
+	ret := fromV3SectorPreCommitOnChainInfo(*info)
+
+	return &ret, nil
+}
+
+func (s *state3) LoadSectors(snos *bitfield.BitField) ([]*SectorOnChainInfo, error) {
+	sectors, err := miner3.LoadSectors(s.store, s.State.Sectors)
+	if err != nil {
+		return nil, err
+	}
+
+	// If no sector numbers are specified, load all.
+	if snos == nil {
+		infos := make([]*SectorOnChainInfo, 0, sectors.Length())
+		var info2 miner3.SectorOnChainInfo
+		if err := sectors.ForEach(&info2, func(_ int64) error {
+			info := fromV3SectorOnChainInfo(info2)
+			infos = append(infos, &info)
+			return nil
+		}); err != nil {
+			return nil, err
+		}
+		return infos, nil
+	}
+
+	// Otherwise, load selected.
+	infos2, err := sectors.Load(*snos)
+	if err != nil {
+		return nil, err
+	}
+	infos := make([]*SectorOnChainInfo, len(infos2))
+	for i, info2 := range infos2 {
+		info := fromV3SectorOnChainInfo(*info2)
+		infos[i] = &info
+	}
+	return infos, nil
+}
+
+func (s *state3) IsAllocated(num abi.SectorNumber) (bool, error) {
+	var allocatedSectors bitfield.BitField
+	if err := s.store.Get(s.store.Context(), s.State.AllocatedSectors, &allocatedSectors); err != nil {
+		return false, err
+	}
+
+	return allocatedSectors.IsSet(uint64(num))
+}
+
+func (s *state3) LoadDeadline(idx uint64) (Deadline, error) {
+	dls, err := s.State.LoadDeadlines(s.store)
+	if err != nil {
+		return nil, err
+	}
+	dl, err := dls.LoadDeadline(s.store, idx)
+	if err != nil {
+		return nil, err
+	}
+	return &deadline3{*dl, s.store}, nil
+}
+
+func (s *state3) ForEachDeadline(cb func(uint64, Deadline) error) error {
+	dls, err := s.State.LoadDeadlines(s.store)
+	if err != nil {
+		return err
+	}
+	return dls.ForEach(s.store, func(i uint64, dl *miner3.Deadline) error {
+		return cb(i, &deadline3{*dl, s.store})
+	})
+}
+
+func (s *state3) NumDeadlines() (uint64, error) {
+	return miner3.WPoStPeriodDeadlines, nil
+}
+
+func (s *state3) DeadlinesChanged(other State) (bool, error) {
+	other2, ok := other.(*state3)
+	if !ok {
+		// treat an upgrade as a change, always
+		return true, nil
+	}
+
+	return !s.State.Deadlines.Equals(other2.Deadlines), nil
+}
+
+func (s *state3) MinerInfoChanged(other State) (bool, error) {
+	other0, ok := other.(*state3)
+	if !ok {
+		// treat an upgrade as a change, always
+		return true, nil
+	}
+	return !s.State.Info.Equals(other0.State.Info), nil
+}
+
+func (s *state3) Info() (MinerInfo, error) {
+	info, err := s.State.GetInfo(s.store)
+	if err != nil {
+		return MinerInfo{}, err
+	}
+
+	var pid *peer.ID
+	if peerID, err := peer.IDFromBytes(info.PeerId); err == nil {
+		pid = &peerID
+	}
+
+	mi := MinerInfo{
+		Owner:            info.Owner,
+		Worker:           info.Worker,
+		ControlAddresses: info.ControlAddresses,
+
+		NewWorker:         address.Undef,
+		WorkerChangeEpoch: -1,
+
+		PeerId:                     pid,
+		Multiaddrs:                 info.Multiaddrs,
+		WindowPoStProofType:        info.WindowPoStProofType,
+		SectorSize:                 info.SectorSize,
+		WindowPoStPartitionSectors: info.WindowPoStPartitionSectors,
+		ConsensusFaultElapsed:      info.ConsensusFaultElapsed,
+	}
+
+	if info.PendingWorkerKey != nil {
+		mi.NewWorker = info.PendingWorkerKey.NewWorker
+		mi.WorkerChangeEpoch = info.PendingWorkerKey.EffectiveAt
+	}
+
+	return mi, nil
+}
+
+func (s *state3) DeadlineInfo(epoch abi.ChainEpoch) (*dline.Info, error) {
+	return s.State.DeadlineInfo(epoch), nil
+}
+
+func (s *state3) sectors() (adt.Array, error) {
+	return adt3.AsArray(s.store, s.Sectors, miner3.SectorsAmtBitwidth)
+}
+
+func (s *state3) decodeSectorOnChainInfo(val *cbg.Deferred) (SectorOnChainInfo, error) {
+	var si miner3.SectorOnChainInfo
+	err := si.UnmarshalCBOR(bytes.NewReader(val.Raw))
+	if err != nil {
+		return SectorOnChainInfo{}, err
+	}
+
+	return fromV3SectorOnChainInfo(si), nil
+}
+
+func (s *state3) precommits() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.PreCommittedSectors, builtin3.DefaultHamtBitwidth)
+}
+
+func (s *state3) decodeSectorPreCommitOnChainInfo(val *cbg.Deferred) (SectorPreCommitOnChainInfo, error) {
+	var sp miner3.SectorPreCommitOnChainInfo
+	err := sp.UnmarshalCBOR(bytes.NewReader(val.Raw))
+	if err != nil {
+		return SectorPreCommitOnChainInfo{}, err
+	}
+
+	return fromV3SectorPreCommitOnChainInfo(sp), nil
+}
+
+func (d *deadline3) LoadPartition(idx uint64) (Partition, error) {
+	p, err := d.Deadline.LoadPartition(d.store, idx)
+	if err != nil {
+		return nil, err
+	}
+	return &partition3{*p, d.store}, nil
+}
+
+func (d *deadline3) ForEachPartition(cb func(uint64, Partition) error) error {
+	ps, err := d.Deadline.PartitionsArray(d.store)
+	if err != nil {
+		return err
+	}
+	var part miner3.Partition
+	return ps.ForEach(&part, func(i int64) error {
+		return cb(uint64(i), &partition3{part, d.store})
+	})
+}
+
+func (d *deadline3) PartitionsChanged(other Deadline) (bool, error) {
+	other2, ok := other.(*deadline3)
+	if !ok {
+		// treat an upgrade as a change, always
+		return true, nil
+	}
+
+	return !d.Deadline.Partitions.Equals(other2.Deadline.Partitions), nil
+}
+
+func (d *deadline3) PartitionsPoSted() (bitfield.BitField, error) {
+	return d.Deadline.PartitionsPoSted, nil
+}
+
+func (d *deadline3) DisputableProofCount() (uint64, error) {
+	ops, err := d.OptimisticProofsSnapshotArray(d.store)
+	if err != nil {
+		return 0, err
+	}
+
+	return ops.Length(), nil
+}
+
+func (p *partition3) AllSectors() (bitfield.BitField, error) {
+	return p.Partition.Sectors, nil
+}
+
+func (p *partition3) FaultySectors() (bitfield.BitField, error) {
+	return p.Partition.Faults, nil
+}
+
+func (p *partition3) RecoveringSectors() (bitfield.BitField, error) {
+	return p.Partition.Recoveries, nil
+}
+
+func fromV3SectorOnChainInfo(v3 miner3.SectorOnChainInfo) SectorOnChainInfo {
+	return SectorOnChainInfo{
+		SectorNumber:          v3.SectorNumber,
+		SealProof:             v3.SealProof,
+		SealedCID:             v3.SealedCID,
+		DealIDs:               v3.DealIDs,
+		Activation:            v3.Activation,
+		Expiration:            v3.Expiration,
+		DealWeight:            v3.DealWeight,
+		VerifiedDealWeight:    v3.VerifiedDealWeight,
+		InitialPledge:         v3.InitialPledge,
+		ExpectedDayReward:     v3.ExpectedDayReward,
+		ExpectedStoragePledge: v3.ExpectedStoragePledge,
+	}
+}
+
+func fromV3SectorPreCommitOnChainInfo(v3 miner3.SectorPreCommitOnChainInfo) SectorPreCommitOnChainInfo {
+	return SectorPreCommitOnChainInfo{
+		Info:               (SectorPreCommitInfo)(v3.Info),
+		PreCommitDeposit:   v3.PreCommitDeposit,
+		PreCommitEpoch:     v3.PreCommitEpoch,
+		DealWeight:         v3.DealWeight,
+		VerifiedDealWeight: v3.VerifiedDealWeight,
+	}
+}

chain/actors/builtin/multisig/message.go

@@ -9,14 +9,14 @@ import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 
-	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
-	multisig2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/multisig"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	multisig3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/multisig"
 
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/types"
 )
 
-var Methods = builtin2.MethodsMultisig
+var Methods = builtin3.MethodsMultisig
 
 func Message(version actors.Version, from address.Address) MessageBuilder {
 	switch version {
@@ -24,6 +24,8 @@ func Message(version actors.Version, from address.Address) MessageBuilder {
 		return message0{from}
 	case actors.Version2:
 		return message2{message0{from}}
+	case actors.Version3:
+		return message3{message0{from}}
 	default:
 		panic(fmt.Sprintf("unsupported actors version: %d", version))
 	}
@@ -47,11 +49,11 @@ type MessageBuilder interface {
 }
 
 // this type is the same between v0 and v2
-type ProposalHashData = multisig2.ProposalHashData
-type ProposeReturn = multisig2.ProposeReturn
+type ProposalHashData = multisig3.ProposalHashData
+type ProposeReturn = multisig3.ProposeReturn
 
 func txnParams(id uint64, data *ProposalHashData) ([]byte, error) {
-	params := multisig2.TxnIDParams{ID: multisig2.TxnID(id)}
+	params := multisig3.TxnIDParams{ID: multisig3.TxnID(id)}
 	if data != nil {
 		if data.Requester.Protocol() != address.ID {
 			return nil, xerrors.Errorf("proposer address must be an ID address, was %s", data.Requester)

chain/actors/builtin/multisig/message3.go

@@ -0,0 +1,71 @@
+package multisig
+
+import (
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	init3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/init"
+	multisig3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/multisig"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	init_ "github.com/filecoin-project/lotus/chain/actors/builtin/init"
+	"github.com/filecoin-project/lotus/chain/types"
+)
+
+type message3 struct{ message0 }
+
+func (m message3) Create(
+	signers []address.Address, threshold uint64,
+	unlockStart, unlockDuration abi.ChainEpoch,
+	initialAmount abi.TokenAmount,
+) (*types.Message, error) {
+
+	lenAddrs := uint64(len(signers))
+
+	if lenAddrs < threshold {
+		return nil, xerrors.Errorf("cannot require signing of more addresses than provided for multisig")
+	}
+
+	if threshold == 0 {
+		threshold = lenAddrs
+	}
+
+	if m.from == address.Undef {
+		return nil, xerrors.Errorf("must provide source address")
+	}
+
+	// Set up constructor parameters for multisig
+	msigParams := &multisig3.ConstructorParams{
+		Signers:               signers,
+		NumApprovalsThreshold: threshold,
+		UnlockDuration:        unlockDuration,
+		StartEpoch:            unlockStart,
+	}
+
+	enc, actErr := actors.SerializeParams(msigParams)
+	if actErr != nil {
+		return nil, actErr
+	}
+
+	// new actors are created by invoking 'exec' on the init actor with the constructor params
+	execParams := &init3.ExecParams{
+		CodeCID:           builtin3.MultisigActorCodeID,
+		ConstructorParams: enc,
+	}
+
+	enc, actErr = actors.SerializeParams(execParams)
+	if actErr != nil {
+		return nil, actErr
+	}
+
+	return &types.Message{
+		To:     init_.Address,
+		From:   m.from,
+		Method: builtin3.MethodsInit.Exec,
+		Params: enc,
+		Value:  initialAmount,
+	}, nil
+}

chain/actors/builtin/multisig/state.go

@@ -12,6 +12,7 @@ import (
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	msig0 "github.com/filecoin-project/specs-actors/actors/builtin/multisig"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -25,6 +26,9 @@ func init() {
 	builtin.RegisterActorState(builtin2.MultisigActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.MultisigActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 func Load(store adt.Store, act *types.Actor) (State, error) {
@@ -33,6 +37,8 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load0(store, act.Head)
 	case builtin2.MultisigActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.MultisigActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/multisig/state0.go

@@ -13,8 +13,8 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 
 	msig0 "github.com/filecoin-project/specs-actors/actors/builtin/multisig"
+	multisig0 "github.com/filecoin-project/specs-actors/actors/builtin/multisig"
 	adt0 "github.com/filecoin-project/specs-actors/actors/util/adt"
-	multisig0 "github.com/filecoin-project/specs-actors/v2/actors/builtin/multisig"
 )
 
 var _ State = (*state0)(nil)

chain/actors/builtin/multisig/state3.go

@@ -0,0 +1,95 @@
+package multisig
+
+import (
+	"bytes"
+	"encoding/binary"
+
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	msig3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/multisig"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	msig3.State
+	store adt.Store
+}
+
+func (s *state3) LockedBalance(currEpoch abi.ChainEpoch) (abi.TokenAmount, error) {
+	return s.State.AmountLocked(currEpoch - s.State.StartEpoch), nil
+}
+
+func (s *state3) StartEpoch() (abi.ChainEpoch, error) {
+	return s.State.StartEpoch, nil
+}
+
+func (s *state3) UnlockDuration() (abi.ChainEpoch, error) {
+	return s.State.UnlockDuration, nil
+}
+
+func (s *state3) InitialBalance() (abi.TokenAmount, error) {
+	return s.State.InitialBalance, nil
+}
+
+func (s *state3) Threshold() (uint64, error) {
+	return s.State.NumApprovalsThreshold, nil
+}
+
+func (s *state3) Signers() ([]address.Address, error) {
+	return s.State.Signers, nil
+}
+
+func (s *state3) ForEachPendingTxn(cb func(id int64, txn Transaction) error) error {
+	arr, err := adt3.AsMap(s.store, s.State.PendingTxns, builtin3.DefaultHamtBitwidth)
+	if err != nil {
+		return err
+	}
+	var out msig3.Transaction
+	return arr.ForEach(&out, func(key string) error {
+		txid, n := binary.Varint([]byte(key))
+		if n <= 0 {
+			return xerrors.Errorf("invalid pending transaction key: %v", key)
+		}
+		return cb(txid, (Transaction)(out))
+	})
+}
+
+func (s *state3) PendingTxnChanged(other State) (bool, error) {
+	other2, ok := other.(*state3)
+	if !ok {
+		// treat an upgrade as a change, always
+		return true, nil
+	}
+	return !s.State.PendingTxns.Equals(other2.PendingTxns), nil
+}
+
+func (s *state3) transactions() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.PendingTxns, builtin3.DefaultHamtBitwidth)
+}
+
+func (s *state3) decodeTransaction(val *cbg.Deferred) (Transaction, error) {
+	var tx msig3.Transaction
+	if err := tx.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
+		return Transaction{}, err
+	}
+	return tx, nil
+}

chain/actors/builtin/paych/message.go

@@ -8,10 +8,10 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/types"
 
-	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 )
 
-var Methods = builtin2.MethodsPaych
+var Methods = builtin3.MethodsPaych
 
 func Message(version actors.Version, from address.Address) MessageBuilder {
 	switch version {
@@ -19,6 +19,8 @@ func Message(version actors.Version, from address.Address) MessageBuilder {
 		return message0{from}
 	case actors.Version2:
 		return message2{from}
+	case actors.Version3:
+		return message3{from}
 	default:
 		panic(fmt.Sprintf("unsupported actors version: %d", version))
 	}

chain/actors/builtin/paych/message3.go

@@ -0,0 +1,74 @@
+package paych
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	init3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/init"
+	paych3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/paych"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	init_ "github.com/filecoin-project/lotus/chain/actors/builtin/init"
+	"github.com/filecoin-project/lotus/chain/types"
+)
+
+type message3 struct{ from address.Address }
+
+func (m message3) Create(to address.Address, initialAmount abi.TokenAmount) (*types.Message, error) {
+	params, aerr := actors.SerializeParams(&paych3.ConstructorParams{From: m.from, To: to})
+	if aerr != nil {
+		return nil, aerr
+	}
+	enc, aerr := actors.SerializeParams(&init3.ExecParams{
+		CodeCID:           builtin3.PaymentChannelActorCodeID,
+		ConstructorParams: params,
+	})
+	if aerr != nil {
+		return nil, aerr
+	}
+
+	return &types.Message{
+		To:     init_.Address,
+		From:   m.from,
+		Value:  initialAmount,
+		Method: builtin3.MethodsInit.Exec,
+		Params: enc,
+	}, nil
+}
+
+func (m message3) Update(paych address.Address, sv *SignedVoucher, secret []byte) (*types.Message, error) {
+	params, aerr := actors.SerializeParams(&paych3.UpdateChannelStateParams{
+		Sv:     *sv,
+		Secret: secret,
+	})
+	if aerr != nil {
+		return nil, aerr
+	}
+
+	return &types.Message{
+		To:     paych,
+		From:   m.from,
+		Value:  abi.NewTokenAmount(0),
+		Method: builtin3.MethodsPaych.UpdateChannelState,
+		Params: params,
+	}, nil
+}
+
+func (m message3) Settle(paych address.Address) (*types.Message, error) {
+	return &types.Message{
+		To:     paych,
+		From:   m.from,
+		Value:  abi.NewTokenAmount(0),
+		Method: builtin3.MethodsPaych.Settle,
+	}, nil
+}
+
+func (m message3) Collect(paych address.Address) (*types.Message, error) {
+	return &types.Message{
+		To:     paych,
+		From:   m.from,
+		Value:  abi.NewTokenAmount(0),
+		Method: builtin3.MethodsPaych.Collect,
+	}, nil
+}

chain/actors/builtin/paych/state.go

@@ -15,6 +15,7 @@ import (
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	paych0 "github.com/filecoin-project/specs-actors/actors/builtin/paych"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -28,6 +29,9 @@ func init() {
 	builtin.RegisterActorState(builtin2.PaymentChannelActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.PaymentChannelActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 // Load returns an abstract copy of payment channel state, irregardless of actor version
@@ -37,6 +41,8 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load0(store, act.Head)
 	case builtin2.PaymentChannelActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.PaymentChannelActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/paych/state3.go

@@ -0,0 +1,104 @@
+package paych
+
+import (
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/big"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	paych3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/paych"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	paych3.State
+	store adt.Store
+	lsAmt *adt3.Array
+}
+
+// Channel owner, who has funded the actor
+func (s *state3) From() (address.Address, error) {
+	return s.State.From, nil
+}
+
+// Recipient of payouts from channel
+func (s *state3) To() (address.Address, error) {
+	return s.State.To, nil
+}
+
+// Height at which the channel can be `Collected`
+func (s *state3) SettlingAt() (abi.ChainEpoch, error) {
+	return s.State.SettlingAt, nil
+}
+
+// Amount successfully redeemed through the payment channel, paid out on `Collect()`
+func (s *state3) ToSend() (abi.TokenAmount, error) {
+	return s.State.ToSend, nil
+}
+
+func (s *state3) getOrLoadLsAmt() (*adt3.Array, error) {
+	if s.lsAmt != nil {
+		return s.lsAmt, nil
+	}
+
+	// Get the lane state from the chain
+	lsamt, err := adt3.AsArray(s.store, s.State.LaneStates, paych3.LaneStatesAmtBitwidth)
+	if err != nil {
+		return nil, err
+	}
+
+	s.lsAmt = lsamt
+	return lsamt, nil
+}
+
+// Get total number of lanes
+func (s *state3) LaneCount() (uint64, error) {
+	lsamt, err := s.getOrLoadLsAmt()
+	if err != nil {
+		return 0, err
+	}
+	return lsamt.Length(), nil
+}
+
+// Iterate lane states
+func (s *state3) ForEachLaneState(cb func(idx uint64, dl LaneState) error) error {
+	// Get the lane state from the chain
+	lsamt, err := s.getOrLoadLsAmt()
+	if err != nil {
+		return err
+	}
+
+	// Note: we use a map instead of an array to store laneStates because the
+	// client sets the lane ID (the index) and potentially they could use a
+	// very large index.
+	var ls paych3.LaneState
+	return lsamt.ForEach(&ls, func(i int64) error {
+		return cb(uint64(i), &laneState3{ls})
+	})
+}
+
+type laneState3 struct {
+	paych3.LaneState
+}
+
+func (ls *laneState3) Redeemed() (big.Int, error) {
+	return ls.LaneState.Redeemed, nil
+}
+
+func (ls *laneState3) Nonce() (uint64, error) {
+	return ls.LaneState.Nonce, nil
+}

chain/actors/builtin/power/power.go

@@ -16,6 +16,7 @@ import (
 
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 )
 
 func init() {
@@ -25,11 +26,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.StoragePowerActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.StoragePowerActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 var (
-	Address = builtin2.StoragePowerActorAddr
-	Methods = builtin2.MethodsPower
+	Address = builtin3.StoragePowerActorAddr
+	Methods = builtin3.MethodsPower
 )
 
 func Load(store adt.Store, act *types.Actor) (st State, err error) {
@@ -38,6 +42,8 @@ func Load(store adt.Store, act *types.Actor) (st State, err error) {
 		return load0(store, act.Head)
 	case builtin2.StoragePowerActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.StoragePowerActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/power/v3.go

@@ -0,0 +1,149 @@
+package power
+
+import (
+	"bytes"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	power3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/power"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	power3.State
+	store adt.Store
+}
+
+func (s *state3) TotalLocked() (abi.TokenAmount, error) {
+	return s.TotalPledgeCollateral, nil
+}
+
+func (s *state3) TotalPower() (Claim, error) {
+	return Claim{
+		RawBytePower:    s.TotalRawBytePower,
+		QualityAdjPower: s.TotalQualityAdjPower,
+	}, nil
+}
+
+// Committed power to the network. Includes miners below the minimum threshold.
+func (s *state3) TotalCommitted() (Claim, error) {
+	return Claim{
+		RawBytePower:    s.TotalBytesCommitted,
+		QualityAdjPower: s.TotalQABytesCommitted,
+	}, nil
+}
+
+func (s *state3) MinerPower(addr address.Address) (Claim, bool, error) {
+	claims, err := s.claims()
+	if err != nil {
+		return Claim{}, false, err
+	}
+	var claim power3.Claim
+	ok, err := claims.Get(abi.AddrKey(addr), &claim)
+	if err != nil {
+		return Claim{}, false, err
+	}
+	return Claim{
+		RawBytePower:    claim.RawBytePower,
+		QualityAdjPower: claim.QualityAdjPower,
+	}, ok, nil
+}
+
+func (s *state3) MinerNominalPowerMeetsConsensusMinimum(a address.Address) (bool, error) {
+	return s.State.MinerNominalPowerMeetsConsensusMinimum(s.store, a)
+}
+
+func (s *state3) TotalPowerSmoothed() (builtin.FilterEstimate, error) {
+	return builtin.FromV3FilterEstimate(s.State.ThisEpochQAPowerSmoothed), nil
+}
+
+func (s *state3) MinerCounts() (uint64, uint64, error) {
+	return uint64(s.State.MinerAboveMinPowerCount), uint64(s.State.MinerCount), nil
+}
+
+func (s *state3) ListAllMiners() ([]address.Address, error) {
+	claims, err := s.claims()
+	if err != nil {
+		return nil, err
+	}
+
+	var miners []address.Address
+	err = claims.ForEach(nil, func(k string) error {
+		a, err := address.NewFromBytes([]byte(k))
+		if err != nil {
+			return err
+		}
+		miners = append(miners, a)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return miners, nil
+}
+
+func (s *state3) ForEachClaim(cb func(miner address.Address, claim Claim) error) error {
+	claims, err := s.claims()
+	if err != nil {
+		return err
+	}
+
+	var claim power3.Claim
+	return claims.ForEach(&claim, func(k string) error {
+		a, err := address.NewFromBytes([]byte(k))
+		if err != nil {
+			return err
+		}
+		return cb(a, Claim{
+			RawBytePower:    claim.RawBytePower,
+			QualityAdjPower: claim.QualityAdjPower,
+		})
+	})
+}
+
+func (s *state3) ClaimsChanged(other State) (bool, error) {
+	other2, ok := other.(*state3)
+	if !ok {
+		// treat an upgrade as a change, always
+		return true, nil
+	}
+	return !s.State.Claims.Equals(other2.State.Claims), nil
+}
+
+func (s *state3) claims() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.Claims, builtin3.DefaultHamtBitwidth)
+}
+
+func (s *state3) decodeClaim(val *cbg.Deferred) (Claim, error) {
+	var ci power3.Claim
+	if err := ci.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
+		return Claim{}, err
+	}
+	return fromV3Claim(ci), nil
+}
+
+func fromV3Claim(v3 power3.Claim) Claim {
+	return Claim{
+		RawBytePower:    v3.RawBytePower,
+		QualityAdjPower: v3.QualityAdjPower,
+	}
+}

chain/actors/builtin/reward/reward.go

@@ -9,6 +9,7 @@ import (
 	"github.com/filecoin-project/go-state-types/cbor"
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -22,11 +23,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.RewardActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.RewardActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 var (
-	Address = builtin2.RewardActorAddr
-	Methods = builtin2.MethodsReward
+	Address = builtin3.RewardActorAddr
+	Methods = builtin3.MethodsReward
 )
 
 func Load(store adt.Store, act *types.Actor) (st State, err error) {
@@ -35,6 +39,8 @@ func Load(store adt.Store, act *types.Actor) (st State, err error) {
 		return load0(store, act.Head)
 	case builtin2.RewardActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.RewardActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/builtin/reward/v3.go

@@ -0,0 +1,86 @@
+package reward
+
+import (
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+
+	miner3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/miner"
+	reward3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/reward"
+	smoothing3 "github.com/filecoin-project/specs-actors/v3/actors/util/smoothing"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	reward3.State
+	store adt.Store
+}
+
+func (s *state3) ThisEpochReward() (abi.TokenAmount, error) {
+	return s.State.ThisEpochReward, nil
+}
+
+func (s *state3) ThisEpochRewardSmoothed() (builtin.FilterEstimate, error) {
+	return builtin.FilterEstimate{
+		PositionEstimate: s.State.ThisEpochRewardSmoothed.PositionEstimate,
+		VelocityEstimate: s.State.ThisEpochRewardSmoothed.VelocityEstimate,
+	}, nil
+}
+
+func (s *state3) ThisEpochBaselinePower() (abi.StoragePower, error) {
+	return s.State.ThisEpochBaselinePower, nil
+}
+
+func (s *state3) TotalStoragePowerReward() (abi.TokenAmount, error) {
+	return s.State.TotalStoragePowerReward, nil
+}
+
+func (s *state3) EffectiveBaselinePower() (abi.StoragePower, error) {
+	return s.State.EffectiveBaselinePower, nil
+}
+
+func (s *state3) EffectiveNetworkTime() (abi.ChainEpoch, error) {
+	return s.State.EffectiveNetworkTime, nil
+}
+
+func (s *state3) CumsumBaseline() (reward3.Spacetime, error) {
+	return s.State.CumsumBaseline, nil
+}
+
+func (s *state3) CumsumRealized() (reward3.Spacetime, error) {
+	return s.State.CumsumRealized, nil
+}
+
+func (s *state3) InitialPledgeForPower(qaPower abi.StoragePower, networkTotalPledge abi.TokenAmount, networkQAPower *builtin.FilterEstimate, circSupply abi.TokenAmount) (abi.TokenAmount, error) {
+	return miner3.InitialPledgeForPower(
+		qaPower,
+		s.State.ThisEpochBaselinePower,
+		s.State.ThisEpochRewardSmoothed,
+		smoothing3.FilterEstimate{
+			PositionEstimate: networkQAPower.PositionEstimate,
+			VelocityEstimate: networkQAPower.VelocityEstimate,
+		},
+		circSupply,
+	), nil
+}
+
+func (s *state3) PreCommitDepositForPower(networkQAPower builtin.FilterEstimate, sectorWeight abi.StoragePower) (abi.TokenAmount, error) {
+	return miner3.PreCommitDepositForPower(s.State.ThisEpochRewardSmoothed,
+		smoothing3.FilterEstimate{
+			PositionEstimate: networkQAPower.PositionEstimate,
+			VelocityEstimate: networkQAPower.VelocityEstimate,
+		},
+		sectorWeight), nil
+}

chain/actors/builtin/verifreg/util.go

@@ -6,16 +6,21 @@ import (
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 )
 
-func getDataCap(store adt.Store, ver actors.Version, root cid.Cid, addr address.Address) (bool, abi.StoragePower, error) {
+// taking this as a function instead of asking the caller to call it helps reduce some of the error
+// checking boilerplate.
+//
+// "go made me do it"
+type rootFunc func() (adt.Map, error)
+
+// Assumes that the bitwidth for v3 HAMTs is the DefaultHamtBitwidth
+func getDataCap(store adt.Store, ver actors.Version, root rootFunc, addr address.Address) (bool, abi.StoragePower, error) {
 	if addr.Protocol() != address.ID {
 		return false, big.Zero(), xerrors.Errorf("can only look up ID addresses")
 	}
-
-	vh, err := adt.AsMap(store, root, ver)
+	vh, err := root()
 	if err != nil {
 		return false, big.Zero(), xerrors.Errorf("loading verifreg: %w", err)
 	}
@@ -30,8 +35,9 @@ func getDataCap(store adt.Store, ver actors.Version, root cid.Cid, addr address.
 	return true, dcap, nil
 }
 
-func forEachCap(store adt.Store, ver actors.Version, root cid.Cid, cb func(addr address.Address, dcap abi.StoragePower) error) error {
-	vh, err := adt.AsMap(store, root, ver)
+// Assumes that the bitwidth for v3 HAMTs is the DefaultHamtBitwidth
+func forEachCap(store adt.Store, ver actors.Version, root rootFunc, cb func(addr address.Address, dcap abi.StoragePower) error) error {
+	vh, err := root()
 	if err != nil {
 		return xerrors.Errorf("loading verified clients: %w", err)
 	}

chain/actors/builtin/verifreg/v0.go

@@ -9,6 +9,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 
 	verifreg0 "github.com/filecoin-project/specs-actors/actors/builtin/verifreg"
+	adt0 "github.com/filecoin-project/specs-actors/actors/util/adt"
 )
 
 var _ State = (*state0)(nil)
@@ -32,17 +33,25 @@ func (s *state0) RootKey() (address.Address, error) {
 }
 
 func (s *state0) VerifiedClientDataCap(addr address.Address) (bool, abi.StoragePower, error) {
-	return getDataCap(s.store, actors.Version0, s.State.VerifiedClients, addr)
+	return getDataCap(s.store, actors.Version0, s.verifiedClients, addr)
 }
 
 func (s *state0) VerifierDataCap(addr address.Address) (bool, abi.StoragePower, error) {
-	return getDataCap(s.store, actors.Version0, s.State.Verifiers, addr)
+	return getDataCap(s.store, actors.Version0, s.verifiers, addr)
 }
 
 func (s *state0) ForEachVerifier(cb func(addr address.Address, dcap abi.StoragePower) error) error {
-	return forEachCap(s.store, actors.Version0, s.State.Verifiers, cb)
+	return forEachCap(s.store, actors.Version0, s.verifiers, cb)
 }
 
 func (s *state0) ForEachClient(cb func(addr address.Address, dcap abi.StoragePower) error) error {
-	return forEachCap(s.store, actors.Version0, s.State.VerifiedClients, cb)
+	return forEachCap(s.store, actors.Version0, s.verifiedClients, cb)
+}
+
+func (s *state0) verifiedClients() (adt.Map, error) {
+	return adt0.AsMap(s.store, s.VerifiedClients)
+}
+
+func (s *state0) verifiers() (adt.Map, error) {
+	return adt0.AsMap(s.store, s.Verifiers)
 }

chain/actors/builtin/verifreg/v2.go

@@ -9,6 +9,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 
 	verifreg2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/verifreg"
+	adt2 "github.com/filecoin-project/specs-actors/v2/actors/util/adt"
 )
 
 var _ State = (*state2)(nil)
@@ -32,17 +33,25 @@ func (s *state2) RootKey() (address.Address, error) {
 }
 
 func (s *state2) VerifiedClientDataCap(addr address.Address) (bool, abi.StoragePower, error) {
-	return getDataCap(s.store, actors.Version2, s.State.VerifiedClients, addr)
+	return getDataCap(s.store, actors.Version2, s.verifiedClients, addr)
 }
 
 func (s *state2) VerifierDataCap(addr address.Address) (bool, abi.StoragePower, error) {
-	return getDataCap(s.store, actors.Version2, s.State.Verifiers, addr)
+	return getDataCap(s.store, actors.Version2, s.verifiers, addr)
 }
 
 func (s *state2) ForEachVerifier(cb func(addr address.Address, dcap abi.StoragePower) error) error {
-	return forEachCap(s.store, actors.Version2, s.State.Verifiers, cb)
+	return forEachCap(s.store, actors.Version2, s.verifiers, cb)
 }
 
 func (s *state2) ForEachClient(cb func(addr address.Address, dcap abi.StoragePower) error) error {
-	return forEachCap(s.store, actors.Version2, s.State.VerifiedClients, cb)
+	return forEachCap(s.store, actors.Version2, s.verifiedClients, cb)
+}
+
+func (s *state2) verifiedClients() (adt.Map, error) {
+	return adt2.AsMap(s.store, s.VerifiedClients)
+}
+
+func (s *state2) verifiers() (adt.Map, error) {
+	return adt2.AsMap(s.store, s.Verifiers)
 }

chain/actors/builtin/verifreg/v3.go

@@ -0,0 +1,58 @@
+package verifreg
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	verifreg3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/verifreg"
+	adt3 "github.com/filecoin-project/specs-actors/v3/actors/util/adt"
+)
+
+var _ State = (*state3)(nil)
+
+func load3(store adt.Store, root cid.Cid) (State, error) {
+	out := state3{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+type state3 struct {
+	verifreg3.State
+	store adt.Store
+}
+
+func (s *state3) RootKey() (address.Address, error) {
+	return s.State.RootKey, nil
+}
+
+func (s *state3) VerifiedClientDataCap(addr address.Address) (bool, abi.StoragePower, error) {
+	return getDataCap(s.store, actors.Version3, s.verifiedClients, addr)
+}
+
+func (s *state3) VerifierDataCap(addr address.Address) (bool, abi.StoragePower, error) {
+	return getDataCap(s.store, actors.Version3, s.verifiers, addr)
+}
+
+func (s *state3) ForEachVerifier(cb func(addr address.Address, dcap abi.StoragePower) error) error {
+	return forEachCap(s.store, actors.Version3, s.verifiers, cb)
+}
+
+func (s *state3) ForEachClient(cb func(addr address.Address, dcap abi.StoragePower) error) error {
+	return forEachCap(s.store, actors.Version3, s.verifiedClients, cb)
+}
+
+func (s *state3) verifiedClients() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.VerifiedClients, builtin3.DefaultHamtBitwidth)
+}
+
+func (s *state3) verifiers() (adt.Map, error) {
+	return adt3.AsMap(s.store, s.Verifiers, builtin3.DefaultHamtBitwidth)
+}

chain/actors/builtin/verifreg/verifreg.go

@@ -3,6 +3,7 @@ package verifreg
 import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 
@@ -22,11 +23,14 @@ func init() {
 	builtin.RegisterActorState(builtin2.VerifiedRegistryActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
 		return load2(store, root)
 	})
+	builtin.RegisterActorState(builtin3.VerifiedRegistryActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
+		return load3(store, root)
+	})
 }
 
 var (
-	Address = builtin2.VerifiedRegistryActorAddr
-	Methods = builtin2.MethodsVerifiedRegistry
+	Address = builtin3.VerifiedRegistryActorAddr
+	Methods = builtin3.MethodsVerifiedRegistry
 )
 
 func Load(store adt.Store, act *types.Actor) (State, error) {
@@ -35,6 +39,8 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load0(store, act.Head)
 	case builtin2.VerifiedRegistryActorCodeID:
 		return load2(store, act.Head)
+	case builtin3.VerifiedRegistryActorCodeID:
+		return load3(store, act.Head)
 	}
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

chain/actors/policy/policy.go

@@ -6,21 +6,28 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/lotus/chain/actors"
+
 	market0 "github.com/filecoin-project/specs-actors/actors/builtin/market"
 	miner0 "github.com/filecoin-project/specs-actors/actors/builtin/miner"
 	power0 "github.com/filecoin-project/specs-actors/actors/builtin/power"
 	verifreg0 "github.com/filecoin-project/specs-actors/actors/builtin/verifreg"
+
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
 	market2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
 	miner2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/miner"
-	paych2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/paych"
 	verifreg2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/verifreg"
+
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	market3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/market"
+	miner3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/miner"
+	paych3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/paych"
+	verifreg3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/verifreg"
 )
 
 const (
-	ChainFinality          = miner0.ChainFinality
+	ChainFinality          = miner3.ChainFinality
 	SealRandomnessLookback = ChainFinality
-	PaychSettleDelay       = paych2.SettleDelay
+	PaychSettleDelay       = paych3.SettleDelay
 )
 
 // SetSupportedProofTypes sets supported proof types, across all actor versions.
@@ -31,6 +38,10 @@ func SetSupportedProofTypes(types ...abi.RegisteredSealProof) {
 	miner2.PreCommitSealProofTypesV7 = make(map[abi.RegisteredSealProof]struct{}, len(types)*2)
 	miner2.PreCommitSealProofTypesV8 = make(map[abi.RegisteredSealProof]struct{}, len(types))
 
+	miner3.PreCommitSealProofTypesV0 = make(map[abi.RegisteredSealProof]struct{}, len(types))
+	miner3.PreCommitSealProofTypesV7 = make(map[abi.RegisteredSealProof]struct{}, len(types)*2)
+	miner3.PreCommitSealProofTypesV8 = make(map[abi.RegisteredSealProof]struct{}, len(types))
+
 	AddSupportedProofTypes(types...)
 }
 
@@ -49,6 +60,13 @@ func AddSupportedProofTypes(types ...abi.RegisteredSealProof) {
 		miner2.PreCommitSealProofTypesV7[t+abi.RegisteredSealProof_StackedDrg2KiBV1_1] = struct{}{}
 
 		miner2.PreCommitSealProofTypesV8[t+abi.RegisteredSealProof_StackedDrg2KiBV1_1] = struct{}{}
+
+		miner3.PreCommitSealProofTypesV0[t] = struct{}{}
+
+		miner3.PreCommitSealProofTypesV7[t] = struct{}{}
+		miner3.PreCommitSealProofTypesV7[t+abi.RegisteredSealProof_StackedDrg2KiBV1_1] = struct{}{}
+
+		miner3.PreCommitSealProofTypesV8[t+abi.RegisteredSealProof_StackedDrg2KiBV1_1] = struct{}{}
 	}
 }
 
@@ -58,6 +76,7 @@ func SetPreCommitChallengeDelay(delay abi.ChainEpoch) {
 	// Set for all miner versions.
 	miner0.PreCommitChallengeDelay = delay
 	miner2.PreCommitChallengeDelay = delay
+	miner3.PreCommitChallengeDelay = delay
 }
 
 // TODO: this function shouldn't really exist. Instead, the API should expose the precommit delay.
@@ -73,6 +92,10 @@ func SetConsensusMinerMinPower(p abi.StoragePower) {
 	for _, policy := range builtin2.SealProofPolicies {
 		policy.ConsensusMinerMinPower = p
 	}
+
+	for _, policy := range builtin3.PoStProofPolicies {
+		policy.ConsensusMinerMinPower = p
+	}
 }
 
 // SetMinVerifiedDealSize sets the minimum size of a verified deal. This should
@@ -80,6 +103,7 @@ func SetConsensusMinerMinPower(p abi.StoragePower) {
 func SetMinVerifiedDealSize(size abi.StoragePower) {
 	verifreg0.MinVerifiedDealSize = size
 	verifreg2.MinVerifiedDealSize = size
+	verifreg3.MinVerifiedDealSize = size
 }
 
 func GetMaxProveCommitDuration(ver actors.Version, t abi.RegisteredSealProof) abi.ChainEpoch {
@@ -88,6 +112,8 @@ func GetMaxProveCommitDuration(ver actors.Version, t abi.RegisteredSealProof) ab
 		return miner0.MaxSealDuration[t]
 	case actors.Version2:
 		return miner2.MaxProveCommitDuration[t]
+	case actors.Version3:
+		return miner3.MaxProveCommitDuration[t]
 	default:
 		panic("unsupported actors version")
 	}
@@ -103,6 +129,8 @@ func DealProviderCollateralBounds(
 		return market0.DealProviderCollateralBounds(size, verified, rawBytePower, qaPower, baselinePower, circulatingFil, nwVer)
 	case actors.Version2:
 		return market2.DealProviderCollateralBounds(size, verified, rawBytePower, qaPower, baselinePower, circulatingFil)
+	case actors.Version3:
+		return market3.DealProviderCollateralBounds(size, verified, rawBytePower, qaPower, baselinePower, circulatingFil)
 	default:
 		panic("unsupported network version")
 	}
@@ -116,6 +144,12 @@ func SetWPoStChallengeWindow(period abi.ChainEpoch) {
 
 	miner2.WPoStChallengeWindow = period
 	miner2.WPoStProvingPeriod = period * abi.ChainEpoch(miner2.WPoStPeriodDeadlines)
+
+	miner3.WPoStChallengeWindow = period
+	miner3.WPoStProvingPeriod = period * abi.ChainEpoch(miner3.WPoStPeriodDeadlines)
+	// by default, this is 2x finality which is 30 periods.
+	// scale it if we're scaling the challenge period.
+	miner3.WPoStDisputeWindow = period * 30
 }
 
 func GetWinningPoStSectorSetLookback(nwVer network.Version) abi.ChainEpoch {
@@ -132,17 +166,17 @@ func GetMaxSectorExpirationExtension() abi.ChainEpoch {
 
 // TODO: we'll probably need to abstract over this better in the future.
 func GetMaxPoStPartitions(p abi.RegisteredPoStProof) (int, error) {
-	sectorsPerPart, err := builtin2.PoStProofWindowPoStPartitionSectors(p)
+	sectorsPerPart, err := builtin3.PoStProofWindowPoStPartitionSectors(p)
 	if err != nil {
 		return 0, err
 	}
-	return int(miner2.AddressedSectorsMax / sectorsPerPart), nil
+	return int(miner3.AddressedSectorsMax / sectorsPerPart), nil
 }
 
 func GetDefaultSectorSize() abi.SectorSize {
 	// supported sector sizes are the same across versions.
-	szs := make([]abi.SectorSize, 0, len(miner2.PreCommitSealProofTypesV8))
-	for spt := range miner2.PreCommitSealProofTypesV8 {
+	szs := make([]abi.SectorSize, 0, len(miner3.PreCommitSealProofTypesV8))
+	for spt := range miner3.PreCommitSealProofTypesV8 {
 		ss, err := spt.SectorSize()
 		if err != nil {
 			panic(err)

chain/actors/version.go

@@ -11,6 +11,7 @@ type Version int
 const (
 	Version0 Version = 0
 	Version2 Version = 2
+	Version3 Version = 3
 )
 
 // Converts a network version into an actors adt version.
@@ -20,6 +21,8 @@ func VersionForNetwork(version network.Version) Version {
 		return Version0
 	case network.Version4, network.Version5, network.Version6, network.Version7, network.Version8, network.Version9:
 		return Version2
+	case network.Version10:
+		return Version3
 	default:
 		panic(fmt.Sprintf("unsupported network version %d", version))
 	}

chain/gen/gen.go

@@ -14,7 +14,6 @@ import (
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/google/uuid"
-	block "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-blockservice"
 	"github.com/ipfs/go-cid"
 	offline "github.com/ipfs/go-ipfs-exchange-offline"
@@ -85,19 +84,6 @@ type ChainGen struct {
 	lr repo.LockedRepo
 }
 
-type mybs struct {
-	blockstore.Blockstore
-}
-
-func (m mybs) Get(c cid.Cid) (block.Block, error) {
-	b, err := m.Blockstore.Get(c)
-	if err != nil {
-		return nil, err
-	}
-
-	return b, nil
-}
-
 var rootkeyMultisig = genesis.MultisigMeta{
 	Signers:         []address.Address{remAccTestKey},
 	Threshold:       1,
@@ -134,12 +120,12 @@ func NewGeneratorWithSectors(numSectors int) (*ChainGen, error) {
 		return nil, xerrors.Errorf("taking mem-repo lock failed: %w", err)
 	}
 
-	ds, err := lr.Datastore("/metadata")
+	ds, err := lr.Datastore(context.TODO(), "/metadata")
 	if err != nil {
 		return nil, xerrors.Errorf("failed to get metadata datastore: %w", err)
 	}
 
-	bs, err := lr.Blockstore(repo.BlockstoreChain)
+	bs, err := lr.Blockstore(context.TODO(), repo.BlockstoreChain)
 	if err != nil {
 		return nil, err
 	}
@@ -152,8 +138,6 @@ func NewGeneratorWithSectors(numSectors int) (*ChainGen, error) {
 		}
 	}()
 
-	bs = mybs{bs}
-
 	ks, err := lr.KeyStore()
 	if err != nil {
 		return nil, xerrors.Errorf("getting repo keystore failed: %w", err)
@@ -465,7 +449,12 @@ func (cg *ChainGen) NextTipSetFromMinersWithMessages(base *types.TipSet, miners
 		}
 	}
 
-	return store.NewFullTipSet(blks), nil
+	fts := store.NewFullTipSet(blks)
+	if err := cg.cs.PutTipSet(context.TODO(), fts.TipSet()); err != nil {
+		return nil, err
+	}
+
+	return fts, nil
 }
 
 func (cg *ChainGen) makeBlock(parents *types.TipSet, m address.Address, vrfticket *types.Ticket,

chain/gen/mining.go

@@ -9,10 +9,10 @@ import (
 	cbg "github.com/whyrusleeping/cbor-gen"
 	"golang.org/x/xerrors"
 
+	ffi "github.com/filecoin-project/filecoin-ffi"
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/stmgr"
 	"github.com/filecoin-project/lotus/chain/types"
-	"github.com/filecoin-project/lotus/lib/sigs/bls"
 )
 
 func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w api.WalletAPI, bt *api.BlockTemplate) (*types.FullBlock, error) {
@@ -140,35 +140,29 @@ func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w api.WalletA
 }
 
 func aggregateSignatures(sigs []crypto.Signature) (*crypto.Signature, error) {
-	sigsS := make([][]byte, len(sigs))
+	sigsS := make([]ffi.Signature, len(sigs))
 	for i := 0; i < len(sigs); i++ {
-		sigsS[i] = sigs[i].Data
+		copy(sigsS[i][:], sigs[i].Data[:ffi.SignatureBytes])
 	}
 
-	aggregator := new(bls.AggregateSignature).AggregateCompressed(sigsS)
-	if aggregator == nil {
+	aggSig := ffi.Aggregate(sigsS)
+	if aggSig == nil {
 		if len(sigs) > 0 {
 			return nil, xerrors.Errorf("bls.Aggregate returned nil with %d signatures", len(sigs))
 		}
 
+		zeroSig := ffi.CreateZeroSignature()
+
 		// Note: for blst this condition should not happen - nil should not
 		// be returned
 		return &crypto.Signature{
 			Type: crypto.SigTypeBLS,
-			Data: new(bls.Signature).Compress(),
+			Data: zeroSig[:],
 		}, nil
 	}
-	aggSigAff := aggregator.ToAffine()
-	if aggSigAff == nil {
 	return &crypto.Signature{
 		Type: crypto.SigTypeBLS,
-			Data: new(bls.Signature).Compress(),
-		}, nil
-	}
-	aggSig := aggSigAff.Compress()
-	return &crypto.Signature{
-		Type: crypto.SigTypeBLS,
-		Data: aggSig,
+		Data: aggSig[:],
 	}, nil
 }
 

chain/messagepool/config.go

@@ -48,9 +48,13 @@ func saveConfig(cfg *types.MpoolConfig, ds dtypes.MetadataDS) error {
 }
 
 func (mp *MessagePool) GetConfig() *types.MpoolConfig {
-	mp.cfgLk.Lock()
-	defer mp.cfgLk.Unlock()
-	return mp.cfg.Clone()
+	return mp.getConfig().Clone()
+}
+
+func (mp *MessagePool) getConfig() *types.MpoolConfig {
+	mp.cfgLk.RLock()
+	defer mp.cfgLk.RUnlock()
+	return mp.cfg
 }
 
 func validateConfg(cfg *types.MpoolConfig) error {

chain/messagepool/messagepool.go

@@ -133,7 +133,7 @@ type MessagePool struct {
 	curTsLk sync.Mutex // DO NOT LOCK INSIDE lk
 	curTs   *types.TipSet
 
-	cfgLk sync.Mutex
+	cfgLk sync.RWMutex
 	cfg   *types.MpoolConfig
 
 	api Provider
@@ -781,7 +781,7 @@ func (mp *MessagePool) addLocked(m *types.SignedMessage, strict, untrusted bool)
 
 	if incr {
 		mp.currentSize++
-		if mp.currentSize > mp.cfg.SizeLimitHigh {
+		if mp.currentSize > mp.getConfig().SizeLimitHigh {
 			// send signal to prune messages if it hasnt already been sent
 			select {
 			case mp.pruneTrigger <- struct{}{}:

chain/messagepool/pruning.go

@@ -19,7 +19,8 @@ func (mp *MessagePool) pruneExcessMessages() error {
 	mp.lk.Lock()
 	defer mp.lk.Unlock()
 
-	if mp.currentSize < mp.cfg.SizeLimitHigh {
+	mpCfg := mp.getConfig()
+	if mp.currentSize < mpCfg.SizeLimitHigh {
 		return nil
 	}
 
@@ -27,7 +28,7 @@ func (mp *MessagePool) pruneExcessMessages() error {
 	case <-mp.pruneCooldown:
 		err := mp.pruneMessages(context.TODO(), ts)
 		go func() {
-			time.Sleep(mp.cfg.PruneCooldown)
+			time.Sleep(mpCfg.PruneCooldown)
 			mp.pruneCooldown <- struct{}{}
 		}()
 		return err
@@ -53,8 +54,9 @@ func (mp *MessagePool) pruneMessages(ctx context.Context, ts *types.TipSet) erro
 	// protected actors -- not pruned
 	protected := make(map[address.Address]struct{})
 
+	mpCfg := mp.getConfig()
 	// we never prune priority addresses
-	for _, actor := range mp.cfg.PriorityAddrs {
+	for _, actor := range mpCfg.PriorityAddrs {
 		protected[actor] = struct{}{}
 	}
 
@@ -90,7 +92,7 @@ func (mp *MessagePool) pruneMessages(ctx context.Context, ts *types.TipSet) erro
 	})
 
 	// Keep messages (remove them from pruneMsgs) from chains while we are under the low water mark
-	loWaterMark := mp.cfg.SizeLimitLow
+	loWaterMark := mpCfg.SizeLimitLow
 keepLoop:
 	for _, chain := range chains {
 		for _, m := range chain.msgs {

chain/messagepool/selection.go

@@ -532,14 +532,14 @@ func (mp *MessagePool) selectPriorityMessages(pending map[address.Address]map[ui
 			log.Infow("select priority messages done", "took", dt)
 		}
 	}()
-
-	result := make([]*types.SignedMessage, 0, mp.cfg.SizeLimitLow)
+	mpCfg := mp.getConfig()
+	result := make([]*types.SignedMessage, 0, mpCfg.SizeLimitLow)
 	gasLimit := int64(build.BlockGasLimit)
 	minGas := int64(gasguess.MinGas)
 
 	// 1. Get priority actor chains
 	var chains []*msgChain
-	priority := mp.cfg.PriorityAddrs
+	priority := mpCfg.PriorityAddrs
 	for _, actor := range priority {
 		mset, ok := pending[actor]
 		if ok {

chain/state/statetree.go

@@ -20,6 +20,10 @@ import (
 
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/types"
+
+	states0 "github.com/filecoin-project/specs-actors/actors/states"
+	states2 "github.com/filecoin-project/specs-actors/v2/actors/states"
+	states3 "github.com/filecoin-project/specs-actors/v3/actors/states"
 )
 
 var log = logging.Logger("statetree")
@@ -144,23 +148,12 @@ func VersionForNetwork(ver network.Version) types.StateTreeVersion {
 	return types.StateTreeVersion1
 }
 
-func adtForSTVersion(ver types.StateTreeVersion) actors.Version {
-	switch ver {
-	case types.StateTreeVersion0:
-		return actors.Version0
-	case types.StateTreeVersion1:
-		return actors.Version2
-	default:
-		panic("unhandled state tree version")
-	}
-}
-
 func NewStateTree(cst cbor.IpldStore, ver types.StateTreeVersion) (*StateTree, error) {
 	var info cid.Cid
 	switch ver {
 	case types.StateTreeVersion0:
 		// info is undefined
-	case types.StateTreeVersion1:
+	case types.StateTreeVersion1, types.StateTreeVersion2:
 		var err error
 		info, err = cst.Put(context.TODO(), new(types.StateInfo0))
 		if err != nil {
@@ -169,13 +162,34 @@ func NewStateTree(cst cbor.IpldStore, ver types.StateTreeVersion) (*StateTree, e
 	default:
 		return nil, xerrors.Errorf("unsupported state tree version: %d", ver)
 	}
-	root, err := adt.NewMap(adt.WrapStore(context.TODO(), cst), adtForSTVersion(ver))
+
+	store := adt.WrapStore(context.TODO(), cst)
+	var hamt adt.Map
+	switch ver {
+	case types.StateTreeVersion0:
+		tree, err := states0.NewTree(store)
 		if err != nil {
-		return nil, err
+			return nil, xerrors.Errorf("failed to create state tree: %w", err)
+		}
+		hamt = tree.Map
+	case types.StateTreeVersion1:
+		tree, err := states2.NewTree(store)
+		if err != nil {
+			return nil, xerrors.Errorf("failed to create state tree: %w", err)
+		}
+		hamt = tree.Map
+	case types.StateTreeVersion2:
+		tree, err := states3.NewTree(store)
+		if err != nil {
+			return nil, xerrors.Errorf("failed to create state tree: %w", err)
+		}
+		hamt = tree.Map
+	default:
+		return nil, xerrors.Errorf("unsupported state tree version: %d", ver)
 	}
 
 	s := &StateTree{
-		root:    root,
+		root:    hamt,
 		info:    info,
 		version: ver,
 		Store:   cst,
@@ -194,30 +208,49 @@ func LoadStateTree(cst cbor.IpldStore, c cid.Cid) (*StateTree, error) {
 		root.Version = types.StateTreeVersion0
 	}
 
-	switch root.Version {
-	case types.StateTreeVersion0, types.StateTreeVersion1:
-		// Load the actual state-tree HAMT.
-		nd, err := adt.AsMap(
-			adt.WrapStore(context.TODO(), cst), root.Actors,
-			adtForSTVersion(root.Version),
+	store := adt.WrapStore(context.TODO(), cst)
+
+	var (
+		hamt adt.Map
+		err  error
 	)
+	switch root.Version {
+	case types.StateTreeVersion0:
+		var tree *states0.Tree
+		tree, err = states0.LoadTree(store, root.Actors)
+		if tree != nil {
+			hamt = tree.Map
+		}
+	case types.StateTreeVersion1:
+		var tree *states2.Tree
+		tree, err = states2.LoadTree(store, root.Actors)
+		if tree != nil {
+			hamt = tree.Map
+		}
+	case types.StateTreeVersion2:
+		var tree *states3.Tree
+		tree, err = states3.LoadTree(store, root.Actors)
+		if tree != nil {
+			hamt = tree.Map
+		}
+	default:
+		return nil, xerrors.Errorf("unsupported state tree version: %d", root.Version)
+	}
 	if err != nil {
-			log.Errorf("loading hamt node %s failed: %s", c, err)
-			return nil, err
+		log.Errorf("failed to load state tree: %s", err)
+		return nil, xerrors.Errorf("failed to load state tree: %w", err)
 	}
 
 	s := &StateTree{
-			root:    nd,
+		root:    hamt,
 		info:    root.Info,
 		version: root.Version,
 		Store:   cst,
 		snaps:   newStateSnaps(),
 	}
 	s.lookupIDFun = s.lookupIDinternal
+
 	return s, nil
-	default:
-		return nil, xerrors.Errorf("unsupported state tree version: %d", root.Version)
-	}
 }
 
 func (st *StateTree) SetActor(addr address.Address, act *types.Actor) error {

chain/stmgr/forks.go

@@ -4,7 +4,12 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
-	"math"
+	"runtime"
+	"sort"
+	"sync"
+	"time"
+
+	"github.com/filecoin-project/go-state-types/rt"
 
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
@@ -29,29 +34,95 @@ import (
 	adt0 "github.com/filecoin-project/specs-actors/actors/util/adt"
 	"github.com/filecoin-project/specs-actors/v2/actors/migration/nv4"
 	"github.com/filecoin-project/specs-actors/v2/actors/migration/nv7"
+	"github.com/filecoin-project/specs-actors/v3/actors/migration/nv10"
 	"github.com/ipfs/go-cid"
 	cbor "github.com/ipfs/go-ipld-cbor"
 	"golang.org/x/xerrors"
 )
 
-// UpgradeFunc is a migration function run at every upgrade.
+// MigrationCache can be used to cache information used by a migration. This is primarily useful to
+// "pre-compute" some migration state ahead of time, and make it accessible in the migration itself.
+type MigrationCache interface {
+	Write(key string, value cid.Cid) error
+	Read(key string) (bool, cid.Cid, error)
+	Load(key string, loadFunc func() (cid.Cid, error)) (cid.Cid, error)
+}
+
+// MigrationFunc is a migration function run at every upgrade.
 //
+// - The cache is a per-upgrade cache, pre-populated by pre-migrations.
 // - The oldState is the state produced by the upgrade epoch.
 // - The returned newState is the new state that will be used by the next epoch.
 // - The height is the upgrade epoch height (already executed).
 // - The tipset is the tipset for the last non-null block before the upgrade. Do
 //   not assume that ts.Height() is the upgrade height.
-type UpgradeFunc func(ctx context.Context, sm *StateManager, cb ExecCallback, oldState cid.Cid, height abi.ChainEpoch, ts *types.TipSet) (newState cid.Cid, err error)
+type MigrationFunc func(
+	ctx context.Context,
+	sm *StateManager, cache MigrationCache,
+	cb ExecCallback, oldState cid.Cid,
+	height abi.ChainEpoch, ts *types.TipSet,
+) (newState cid.Cid, err error)
+
+// PreMigrationFunc is a function run _before_ a network upgrade to pre-compute part of the network
+// upgrade and speed it up.
+type PreMigrationFunc func(
+	ctx context.Context,
+	sm *StateManager, cache MigrationCache,
+	oldState cid.Cid,
+	height abi.ChainEpoch, ts *types.TipSet,
+) error
+
+// PreMigration describes a pre-migration step to prepare for a network state upgrade. Pre-migrations
+// are optimizations, are not guaranteed to run, and may be canceled and/or run multiple times.
+type PreMigration struct {
+	// PreMigration is the pre-migration function to run at the specified time. This function is
+	// run asynchronously and must abort promptly when canceled.
+	PreMigration PreMigrationFunc
+
+	// StartWithin specifies that this pre-migration should be started at most StartWithin
+	// epochs before the upgrade.
+	StartWithin abi.ChainEpoch
+
+	// DontStartWithin specifies that this pre-migration should not be started DontStartWithin
+	// epochs before the final upgrade epoch.
+	//
+	// This should be set such that the pre-migration is likely to complete before StopWithin.
+	DontStartWithin abi.ChainEpoch
+
+	// StopWithin specifies that this pre-migration should be stopped StopWithin epochs of the
+	// final upgrade epoch.
+	StopWithin abi.ChainEpoch
+}
 
 type Upgrade struct {
 	Height    abi.ChainEpoch
 	Network   network.Version
 	Expensive bool
-	Migration UpgradeFunc
+	Migration MigrationFunc
+
+	// PreMigrations specifies a set of pre-migration functions to run at the indicated epochs.
+	// These functions should fill the given cache with information that can speed up the
+	// eventual full migration at the upgrade epoch.
+	PreMigrations []PreMigration
 }
 
 type UpgradeSchedule []Upgrade
 
+type migrationLogger struct{}
+
+func (ml migrationLogger) Log(level rt.LogLevel, msg string, args ...interface{}) {
+	switch level {
+	case rt.DEBUG:
+		log.Debugf(msg, args...)
+	case rt.INFO:
+		log.Infof(msg, args...)
+	case rt.WARN:
+		log.Warnf(msg, args...)
+	case rt.ERROR:
+		log.Errorf(msg, args...)
+	}
+}
+
 func DefaultUpgradeSchedule() UpgradeSchedule {
 	var us UpgradeSchedule
 
@@ -100,32 +171,24 @@ func DefaultUpgradeSchedule() UpgradeSchedule {
 		Height:    build.UpgradeOrangeHeight,
 		Network:   network.Version9,
 		Migration: nil,
+	}, {
+		Height:    build.UpgradeActorsV3Height,
+		Network:   network.Version10,
+		Migration: UpgradeActorsV3,
+		PreMigrations: []PreMigration{{
+			PreMigration:    PreUpgradeActorsV3,
+			StartWithin:     120,
+			DontStartWithin: 60,
+			StopWithin:      35,
+		}, {
+			PreMigration:    PreUpgradeActorsV3,
+			StartWithin:     30,
+			DontStartWithin: 15,
+			StopWithin:      5,
+		}},
+		Expensive: true,
 	}}
 
-	if build.UpgradeActorsV2Height == math.MaxInt64 { // disable actors upgrade
-		updates = []Upgrade{{
-			Height:    build.UpgradeBreezeHeight,
-			Network:   network.Version1,
-			Migration: UpgradeFaucetBurnRecovery,
-		}, {
-			Height:    build.UpgradeSmokeHeight,
-			Network:   network.Version2,
-			Migration: nil,
-		}, {
-			Height:    build.UpgradeIgnitionHeight,
-			Network:   network.Version3,
-			Migration: UpgradeIgnition,
-		}, {
-			Height:    build.UpgradeRefuelHeight,
-			Network:   network.Version3,
-			Migration: UpgradeRefuel,
-		}, {
-			Height:    build.UpgradeLiftoffHeight,
-			Network:   network.Version3,
-			Migration: UpgradeLiftoff,
-		}}
-	}
-
 	for _, u := range updates {
 		if u.Height < 0 {
 			// upgrade disabled
@@ -137,14 +200,43 @@ func DefaultUpgradeSchedule() UpgradeSchedule {
 }
 
 func (us UpgradeSchedule) Validate() error {
-	// Make sure we're not trying to upgrade to version 0.
+	// Make sure each upgrade is valid.
 	for _, u := range us {
 		if u.Network <= 0 {
 			return xerrors.Errorf("cannot upgrade to version <= 0: %d", u.Network)
 		}
+
+		for _, m := range u.PreMigrations {
+			if m.StartWithin <= 0 {
+				return xerrors.Errorf("pre-migration must specify a positive start-within epoch")
 			}
 
-	// Make sure all the upgrades make sense.
+			if m.DontStartWithin < 0 || m.StopWithin < 0 {
+				return xerrors.Errorf("pre-migration must specify non-negative epochs")
+			}
+
+			if m.StartWithin <= m.StopWithin {
+				return xerrors.Errorf("pre-migration start-within must come before stop-within")
+			}
+
+			// If we have a dont-start-within.
+			if m.DontStartWithin != 0 {
+				if m.DontStartWithin < m.StopWithin {
+					return xerrors.Errorf("pre-migration dont-start-within must come before stop-within")
+				}
+				if m.StartWithin <= m.DontStartWithin {
+					return xerrors.Errorf("pre-migration start-within must come after dont-start-within")
+				}
+			}
+		}
+		if !sort.SliceIsSorted(u.PreMigrations, func(i, j int) bool {
+			return u.PreMigrations[i].StartWithin > u.PreMigrations[j].StartWithin //nolint:scopelint,gosec
+		}) {
+			return xerrors.Errorf("pre-migrations must be sorted by start epoch")
+		}
+	}
+
+	// Make sure the upgrade order makes sense.
 	for i := 1; i < len(us); i++ {
 		prev := &us[i-1]
 		curr := &us[i]
@@ -166,12 +258,28 @@ func (us UpgradeSchedule) Validate() error {
 func (sm *StateManager) handleStateForks(ctx context.Context, root cid.Cid, height abi.ChainEpoch, cb ExecCallback, ts *types.TipSet) (cid.Cid, error) {
 	retCid := root
 	var err error
-	f, ok := sm.stateMigrations[height]
-	if ok {
-		retCid, err = f(ctx, sm, cb, root, height, ts)
+	u := sm.stateMigrations[height]
+	if u != nil && u.upgrade != nil {
+		startTime := time.Now()
+		log.Warnw("STARTING migration", "height", height, "from", root)
+		// Yes, we clone the cache, even for the final upgrade epoch. Why? Reverts. We may
+		// have to migrate multiple times.
+		tmpCache := u.cache.Clone()
+		retCid, err = u.upgrade(ctx, sm, tmpCache, cb, root, height, ts)
 		if err != nil {
+			log.Errorw("FAILED migration", "height", height, "from", root, "error", err)
 			return cid.Undef, err
 		}
+		// Yes, we update the cache, even for the final upgrade epoch. Why? Reverts. This
+		// can save us a _lot_ of time because very few actors will have changed if we
+		// do a small revert then need to re-run the migration.
+		u.cache.Update(tmpCache)
+		log.Warnw("COMPLETED migration",
+			"height", height,
+			"from", root,
+			"to", retCid,
+			"duration", time.Since(startTime),
+		)
 	}
 
 	return retCid, nil
@@ -182,6 +290,109 @@ func (sm *StateManager) hasExpensiveFork(ctx context.Context, height abi.ChainEp
 	return ok
 }
 
+func runPreMigration(ctx context.Context, sm *StateManager, fn PreMigrationFunc, cache *nv10.MemMigrationCache, ts *types.TipSet) {
+	height := ts.Height()
+	parent := ts.ParentState()
+
+	startTime := time.Now()
+
+	log.Warn("STARTING pre-migration")
+	// Clone the cache so we don't actually _update_ it
+	// till we're done. Otherwise, if we fail, the next
+	// migration to use the cache may assume that
+	// certain blocks exist, even if they don't.
+	tmpCache := cache.Clone()
+	err := fn(ctx, sm, tmpCache, parent, height, ts)
+	if err != nil {
+		log.Errorw("FAILED pre-migration", "error", err)
+		return
+	}
+	// Finally, if everything worked, update the cache.
+	cache.Update(tmpCache)
+	log.Warnw("COMPLETED pre-migration", "duration", time.Since(startTime))
+}
+
+func (sm *StateManager) preMigrationWorker(ctx context.Context) {
+	defer close(sm.shutdown)
+
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	type op struct {
+		after    abi.ChainEpoch
+		notAfter abi.ChainEpoch
+		run      func(ts *types.TipSet)
+	}
+
+	var wg sync.WaitGroup
+	defer wg.Wait()
+
+	// Turn each pre-migration into an operation in a schedule.
+	var schedule []op
+	for upgradeEpoch, migration := range sm.stateMigrations {
+		cache := migration.cache
+		for _, prem := range migration.preMigrations {
+			preCtx, preCancel := context.WithCancel(ctx)
+			migrationFunc := prem.PreMigration
+
+			afterEpoch := upgradeEpoch - prem.StartWithin
+			notAfterEpoch := upgradeEpoch - prem.DontStartWithin
+			stopEpoch := upgradeEpoch - prem.StopWithin
+			// We can't start after we stop.
+			if notAfterEpoch > stopEpoch {
+				notAfterEpoch = stopEpoch - 1
+			}
+
+			// Add an op to start a pre-migration.
+			schedule = append(schedule, op{
+				after:    afterEpoch,
+				notAfter: notAfterEpoch,
+
+				// TODO: are these values correct?
+				run: func(ts *types.TipSet) {
+					wg.Add(1)
+					go func() {
+						defer wg.Done()
+						runPreMigration(preCtx, sm, migrationFunc, cache, ts)
+					}()
+				},
+			})
+
+			// Add an op to cancel the pre-migration if it's still running.
+			schedule = append(schedule, op{
+				after:    stopEpoch,
+				notAfter: -1,
+				run:      func(ts *types.TipSet) { preCancel() },
+			})
+		}
+	}
+
+	// Then sort by epoch.
+	sort.Slice(schedule, func(i, j int) bool {
+		return schedule[i].after < schedule[j].after
+	})
+
+	// Finally, when the head changes, see if there's anything we need to do.
+	//
+	// We're intentionally ignoring reorgs as they don't matter for our purposes.
+	for change := range sm.cs.SubHeadChanges(ctx) {
+		for _, head := range change {
+			for len(schedule) > 0 {
+				op := &schedule[0]
+				if head.Val.Height() < op.after {
+					break
+				}
+
+				// If we haven't passed the pre-migration height...
+				if op.notAfter < 0 || head.Val.Height() < op.notAfter {
+					op.run(head.Val)
+				}
+				schedule = schedule[1:]
+			}
+		}
+	}
+}
+
 func doTransfer(tree types.StateTree, from, to address.Address, amt abi.TokenAmount, cb func(trace types.ExecutionTrace)) error {
 	fromAct, err := tree.GetActor(from)
 	if err != nil {
@@ -235,7 +446,7 @@ func doTransfer(tree types.StateTree, from, to address.Address, amt abi.TokenAmo
 	return nil
 }
 
-func UpgradeFaucetBurnRecovery(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeFaucetBurnRecovery(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 	// Some initial parameters
 	FundsForMiners := types.FromFil(1_000_000)
 	LookbackEpoch := abi.ChainEpoch(32000)
@@ -521,7 +732,7 @@ func UpgradeFaucetBurnRecovery(ctx context.Context, sm *StateManager, cb ExecCal
 	return tree.Flush(ctx)
 }
 
-func UpgradeIgnition(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeIgnition(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 	store := sm.cs.Store(ctx)
 
 	if build.UpgradeLiftoffHeight <= epoch {
@@ -576,7 +787,7 @@ func UpgradeIgnition(ctx context.Context, sm *StateManager, cb ExecCallback, roo
 	return tree.Flush(ctx)
 }
 
-func UpgradeRefuel(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeRefuel(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 
 	store := sm.cs.Store(ctx)
 	tree, err := sm.StateTree(root)
@@ -602,7 +813,7 @@ func UpgradeRefuel(ctx context.Context, sm *StateManager, cb ExecCallback, root
 	return tree.Flush(ctx)
 }
 
-func UpgradeActorsV2(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeActorsV2(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 	buf := bufbstore.NewTieredBstore(sm.cs.Blockstore(), bstore.NewTemporarySync())
 	store := store.ActorStore(ctx, buf)
 
@@ -648,7 +859,7 @@ func UpgradeActorsV2(ctx context.Context, sm *StateManager, cb ExecCallback, roo
 	return newRoot, nil
 }
 
-func UpgradeLiftoff(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeLiftoff(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 	tree, err := sm.StateTree(root)
 	if err != nil {
 		return cid.Undef, xerrors.Errorf("getting state tree: %w", err)
@@ -662,7 +873,7 @@ func UpgradeLiftoff(ctx context.Context, sm *StateManager, cb ExecCallback, root
 	return tree.Flush(ctx)
 }
 
-func UpgradeCalico(ctx context.Context, sm *StateManager, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+func UpgradeCalico(ctx context.Context, sm *StateManager, _ MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 	store := sm.cs.Store(ctx)
 	var stateRoot types.StateRoot
 	if err := store.Get(ctx, root, &stateRoot); err != nil {
@@ -704,6 +915,103 @@ func UpgradeCalico(ctx context.Context, sm *StateManager, cb ExecCallback, root
 	return newRoot, nil
 }
 
+func UpgradeActorsV3(ctx context.Context, sm *StateManager, cache MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+	// Use all the CPUs except 3.
+	workerCount := runtime.NumCPU() - 3
+	if workerCount <= 0 {
+		workerCount = 1
+	}
+
+	config := nv10.Config{
+		MaxWorkers:        uint(workerCount),
+		JobQueueSize:      1000,
+		ResultQueueSize:   100,
+		ProgressLogPeriod: 10 * time.Second,
+	}
+	newRoot, err := upgradeActorsV3Common(ctx, sm, cache, root, epoch, ts, config)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("migrating actors v3 state: %w", err)
+	}
+
+	// perform some basic sanity checks to make sure everything still works.
+	store := store.ActorStore(ctx, sm.ChainStore().Blockstore())
+	if newSm, err := state.LoadStateTree(store, newRoot); err != nil {
+		return cid.Undef, xerrors.Errorf("state tree sanity load failed: %w", err)
+	} else if newRoot2, err := newSm.Flush(ctx); err != nil {
+		return cid.Undef, xerrors.Errorf("state tree sanity flush failed: %w", err)
+	} else if newRoot2 != newRoot {
+		return cid.Undef, xerrors.Errorf("state-root mismatch: %s != %s", newRoot, newRoot2)
+	} else if _, err := newSm.GetActor(init_.Address); err != nil {
+		return cid.Undef, xerrors.Errorf("failed to load init actor after upgrade: %w", err)
+	}
+
+	return newRoot, nil
+}
+
+func PreUpgradeActorsV3(ctx context.Context, sm *StateManager, cache MigrationCache, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) error {
+	// Use half the CPUs for pre-migration, but leave at least 3.
+	workerCount := runtime.NumCPU()
+	if workerCount <= 4 {
+		workerCount = 1
+	} else {
+		workerCount /= 2
+	}
+	config := nv10.Config{MaxWorkers: uint(workerCount)}
+	_, err := upgradeActorsV3Common(ctx, sm, cache, root, epoch, ts, config)
+	return err
+}
+
+func upgradeActorsV3Common(
+	ctx context.Context, sm *StateManager, cache MigrationCache,
+	root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet,
+	config nv10.Config,
+) (cid.Cid, error) {
+	buf := bufbstore.NewTieredBstore(sm.cs.Blockstore(), bstore.NewTemporarySync())
+	store := store.ActorStore(ctx, buf)
+
+	// Load the state root.
+	var stateRoot types.StateRoot
+	if err := store.Get(ctx, root, &stateRoot); err != nil {
+		return cid.Undef, xerrors.Errorf("failed to decode state root: %w", err)
+	}
+
+	if stateRoot.Version != types.StateTreeVersion1 {
+		return cid.Undef, xerrors.Errorf(
+			"expected state root version 1 for actors v3 upgrade, got %d",
+			stateRoot.Version,
+		)
+	}
+
+	// Perform the migration
+	newHamtRoot, err := nv10.MigrateStateTree(ctx, store, stateRoot.Actors, epoch, config, migrationLogger{}, cache)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("upgrading to actors v2: %w", err)
+	}
+
+	// Persist the result.
+	newRoot, err := store.Put(ctx, &types.StateRoot{
+		Version: types.StateTreeVersion2,
+		Actors:  newHamtRoot,
+		Info:    stateRoot.Info,
+	})
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to persist new state root: %w", err)
+	}
+
+	// Persist the new tree.
+
+	{
+		from := buf
+		to := buf.Read()
+
+		if err := vm.Copy(ctx, from, to, newRoot); err != nil {
+			return cid.Undef, xerrors.Errorf("copying migrated tree: %w", err)
+		}
+	}
+
+	return newRoot, nil
+}
+
 func setNetworkName(ctx context.Context, store adt.Store, tree *state.StateTree, name string) error {
 	ia, err := tree.GetActor(builtin0.InitActorAddr)
 	if err != nil {

chain/stmgr/forks_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"sync"
 	"testing"
 
 	"github.com/ipfs/go-cid"
@@ -122,7 +123,7 @@ func TestForkHeightTriggers(t *testing.T) {
 		cg.ChainStore(), UpgradeSchedule{{
 			Network: 1,
 			Height:  testForkHeight,
-			Migration: func(ctx context.Context, sm *StateManager, cb ExecCallback,
+			Migration: func(ctx context.Context, sm *StateManager, cache MigrationCache, cb ExecCallback,
 				root cid.Cid, height abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 				cst := ipldcbor.NewCborStore(sm.ChainStore().Blockstore())
 
@@ -252,7 +253,7 @@ func TestForkRefuseCall(t *testing.T) {
 			Network:   1,
 			Expensive: true,
 			Height:    testForkHeight,
-			Migration: func(ctx context.Context, sm *StateManager, cb ExecCallback,
+			Migration: func(ctx context.Context, sm *StateManager, cache MigrationCache, cb ExecCallback,
 				root cid.Cid, height abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
 				return root, nil
 			}}})
@@ -317,3 +318,166 @@ func TestForkRefuseCall(t *testing.T) {
 		}
 	}
 }
+
+func TestForkPreMigration(t *testing.T) {
+	logging.SetAllLoggers(logging.LevelInfo)
+
+	cg, err := gen.NewGenerator()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	fooCid, err := abi.CidBuilder.Sum([]byte("foo"))
+	require.NoError(t, err)
+
+	barCid, err := abi.CidBuilder.Sum([]byte("bar"))
+	require.NoError(t, err)
+
+	failCid, err := abi.CidBuilder.Sum([]byte("fail"))
+	require.NoError(t, err)
+
+	var wait20 sync.WaitGroup
+	wait20.Add(3)
+
+	wasCanceled := make(chan struct{})
+
+	checkCache := func(t *testing.T, cache MigrationCache) {
+		found, value, err := cache.Read("foo")
+		require.NoError(t, err)
+		require.True(t, found)
+		require.Equal(t, fooCid, value)
+
+		found, value, err = cache.Read("bar")
+		require.NoError(t, err)
+		require.True(t, found)
+		require.Equal(t, barCid, value)
+
+		found, _, err = cache.Read("fail")
+		require.NoError(t, err)
+		require.False(t, found)
+	}
+
+	counter := make(chan struct{}, 10)
+
+	sm, err := NewStateManagerWithUpgradeSchedule(
+		cg.ChainStore(), UpgradeSchedule{{
+			Network: 1,
+			Height:  testForkHeight,
+			Migration: func(ctx context.Context, sm *StateManager, cache MigrationCache, cb ExecCallback,
+				root cid.Cid, height abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
+
+				// Make sure the test that should be canceled, is canceled.
+				select {
+				case <-wasCanceled:
+				case <-ctx.Done():
+					return cid.Undef, ctx.Err()
+				}
+
+				// the cache should be setup correctly.
+				checkCache(t, cache)
+
+				counter <- struct{}{}
+
+				return root, nil
+			},
+			PreMigrations: []PreMigration{{
+				StartWithin: 20,
+				PreMigration: func(ctx context.Context, _ *StateManager, cache MigrationCache,
+					_ cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) error {
+					wait20.Done()
+					wait20.Wait()
+
+					err := cache.Write("foo", fooCid)
+					require.NoError(t, err)
+
+					counter <- struct{}{}
+
+					return nil
+				},
+			}, {
+				StartWithin: 20,
+				PreMigration: func(ctx context.Context, _ *StateManager, cache MigrationCache,
+					_ cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) error {
+					wait20.Done()
+					wait20.Wait()
+
+					err := cache.Write("bar", barCid)
+					require.NoError(t, err)
+
+					counter <- struct{}{}
+
+					return nil
+				},
+			}, {
+				StartWithin: 20,
+				PreMigration: func(ctx context.Context, _ *StateManager, cache MigrationCache,
+					_ cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) error {
+					wait20.Done()
+					wait20.Wait()
+
+					err := cache.Write("fail", failCid)
+					require.NoError(t, err)
+
+					counter <- struct{}{}
+
+					// Fail this migration. The cached entry should not be persisted.
+					return fmt.Errorf("failed")
+				},
+			}, {
+				StartWithin: 15,
+				StopWithin:  5,
+				PreMigration: func(ctx context.Context, _ *StateManager, cache MigrationCache,
+					_ cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) error {
+
+					<-ctx.Done()
+					close(wasCanceled)
+
+					counter <- struct{}{}
+
+					return nil
+				},
+			}, {
+				StartWithin: 10,
+				PreMigration: func(ctx context.Context, _ *StateManager, cache MigrationCache,
+					_ cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) error {
+
+					checkCache(t, cache)
+
+					counter <- struct{}{}
+
+					return nil
+				},
+			}}},
+		})
+	if err != nil {
+		t.Fatal(err)
+	}
+	require.NoError(t, sm.Start(context.Background()))
+	defer func() {
+		require.NoError(t, sm.Stop(context.Background()))
+	}()
+
+	inv := vm.NewActorRegistry()
+	inv.Register(nil, testActor{})
+
+	sm.SetVMConstructor(func(ctx context.Context, vmopt *vm.VMOpts) (*vm.VM, error) {
+		nvm, err := vm.NewVM(ctx, vmopt)
+		if err != nil {
+			return nil, err
+		}
+		nvm.SetInvoker(inv)
+		return nvm, nil
+	})
+
+	cg.SetStateManager(sm)
+
+	for i := 0; i < 50; i++ {
+		_, err := cg.NextTipSet()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+	// We have 5 pre-migration steps, and the migration. They should all have written something
+	// to this channel.
+	require.Equal(t, 6, len(counter))
+}

chain/stmgr/stmgr.go

@@ -20,6 +20,10 @@ import (
 
 	// Used for genesis.
 	msig0 "github.com/filecoin-project/specs-actors/actors/builtin/multisig"
+	"github.com/filecoin-project/specs-actors/v3/actors/migration/nv10"
+
+	// we use the same adt for all receipts
+	blockadt "github.com/filecoin-project/specs-actors/actors/util/adt"
 
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
@@ -42,6 +46,7 @@ import (
 )
 
 const LookbackNoLimit = abi.ChainEpoch(-1)
+const ReceiptAmtBitwidth = 3
 
 var log = logging.Logger("statemgr")
 
@@ -58,15 +63,24 @@ type versionSpec struct {
 	atOrBelow      abi.ChainEpoch
 }
 
+type migration struct {
+	upgrade       MigrationFunc
+	preMigrations []PreMigration
+	cache         *nv10.MemMigrationCache
+}
+
 type StateManager struct {
 	cs *store.ChainStore
 
+	cancel   context.CancelFunc
+	shutdown chan struct{}
+
 	// Determines the network version at any given epoch.
 	networkVersions []versionSpec
 	latestVersion   network.Version
 
-	// Maps chain epochs to upgrade functions.
-	stateMigrations map[abi.ChainEpoch]UpgradeFunc
+	// Maps chain epochs to migrations.
+	stateMigrations map[abi.ChainEpoch]*migration
 	// A set of potentially expensive/time consuming upgrades. Explicit
 	// calls for, e.g., gas estimation fail against this epoch with
 	// ErrExpensiveFork.
@@ -99,7 +113,7 @@ func NewStateManagerWithUpgradeSchedule(cs *store.ChainStore, us UpgradeSchedule
 		return nil, err
 	}
 
-	stateMigrations := make(map[abi.ChainEpoch]UpgradeFunc, len(us))
+	stateMigrations := make(map[abi.ChainEpoch]*migration, len(us))
 	expensiveUpgrades := make(map[abi.ChainEpoch]struct{}, len(us))
 	var networkVersions []versionSpec
 	lastVersion := network.Version0
@@ -107,8 +121,13 @@ func NewStateManagerWithUpgradeSchedule(cs *store.ChainStore, us UpgradeSchedule
 		// If we have any upgrades, process them and create a version
 		// schedule.
 		for _, upgrade := range us {
-			if upgrade.Migration != nil {
-				stateMigrations[upgrade.Height] = upgrade.Migration
+			if upgrade.Migration != nil || upgrade.PreMigrations != nil {
+				migration := &migration{
+					upgrade:       upgrade.Migration,
+					preMigrations: upgrade.PreMigrations,
+					cache:         nv10.NewMemMigrationCache(),
+				}
+				stateMigrations[upgrade.Height] = migration
 			}
 			if upgrade.Expensive {
 				expensiveUpgrades[upgrade.Height] = struct{}{}
@@ -144,6 +163,33 @@ func cidsToKey(cids []cid.Cid) string {
 	return out
 }
 
+// Start starts the state manager's optional background processes. At the moment, this schedules
+// pre-migration functions to run ahead of network upgrades.
+//
+// This method is not safe to invoke from multiple threads or concurrently with Stop.
+func (sm *StateManager) Start(context.Context) error {
+	var ctx context.Context
+	ctx, sm.cancel = context.WithCancel(context.Background())
+	sm.shutdown = make(chan struct{})
+	go sm.preMigrationWorker(ctx)
+	return nil
+}
+
+// Stop starts the state manager's background processes.
+//
+// This method is not safe to invoke concurrently with Start.
+func (sm *StateManager) Stop(ctx context.Context) error {
+	if sm.cancel != nil {
+		sm.cancel()
+		select {
+		case <-sm.shutdown:
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	}
+	return nil
+}
+
 func (sm *StateManager) TipSetState(ctx context.Context, ts *types.TipSet) (st cid.Cid, rec cid.Cid, err error) {
 	ctx, span := trace.StartSpan(ctx, "tipSetState")
 	defer span.End()
@@ -384,11 +430,7 @@ func (sm *StateManager) ApplyBlocks(ctx context.Context, parentEpoch abi.ChainEp
 		return cid.Cid{}, cid.Cid{}, err
 	}
 
-	// XXX: Is the height correct? Or should it be epoch-1?
-	rectarr, err := adt.NewArray(sm.cs.Store(ctx), actors.VersionForNetwork(sm.GetNtwkVersion(ctx, epoch)))
-	if err != nil {
-		return cid.Undef, cid.Undef, xerrors.Errorf("failed to create receipts amt: %w", err)
-	}
+	rectarr := blockadt.MakeEmptyArray(sm.cs.Store(ctx))
 	for i, receipt := range receipts {
 		if err := rectarr.Set(uint64(i), receipt); err != nil {
 			return cid.Undef, cid.Undef, xerrors.Errorf("failed to build receipts amt: %w", err)
@@ -473,13 +515,26 @@ func (sm *StateManager) ResolveToKeyAddress(ctx context.Context, addr address.Ad
 		ts = sm.cs.GetHeaviestTipSet()
 	}
 
+	cst := cbor.NewCborStore(sm.cs.Blockstore())
+
+	// First try to resolve the actor in the parent state, so we don't have to compute anything.
+	tree, err := state.LoadStateTree(cst, ts.ParentState())
+	if err != nil {
+		return address.Undef, xerrors.Errorf("failed to load parent state tree: %w", err)
+	}
+
+	resolved, err := vm.ResolveToKeyAddr(tree, cst, addr)
+	if err == nil {
+		return resolved, nil
+	}
+
+	// If that fails, compute the tip-set and try again.
 	st, _, err := sm.TipSetState(ctx, ts)
 	if err != nil {
 		return address.Undef, xerrors.Errorf("resolve address failed to get tipset state: %w", err)
 	}
 
-	cst := cbor.NewCborStore(sm.cs.Blockstore())
-	tree, err := state.LoadStateTree(cst, st)
+	tree, err = state.LoadStateTree(cst, st)
 	if err != nil {
 		return address.Undef, xerrors.Errorf("failed to load state tree")
 	}

chain/stmgr/utils.go

@@ -25,6 +25,7 @@ import (
 
 	exported0 "github.com/filecoin-project/specs-actors/actors/builtin/exported"
 	exported2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/exported"
+	exported3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/exported"
 
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -207,17 +208,17 @@ func GetSectorsForWinningPoSt(ctx context.Context, nv network.Version, pv ffiwra
 		return nil, xerrors.Errorf("getting miner info: %w", err)
 	}
 
-	wpt, err := info.SealProofType.RegisteredWinningPoStProof()
-	if err != nil {
-		return nil, xerrors.Errorf("getting window proof type: %w", err)
-	}
-
 	mid, err := address.IDFromAddress(maddr)
 	if err != nil {
 		return nil, xerrors.Errorf("getting miner ID: %w", err)
 	}
 
-	ids, err := pv.GenerateWinningPoStSectorChallenge(ctx, wpt, abi.ActorID(mid), rand, numProvSect)
+	proofType, err := miner.WinningPoStProofTypeFromWindowPoStProofType(nv, info.WindowPoStProofType)
+	if err != nil {
+		return nil, xerrors.Errorf("determining winning post proof type: %w", err)
+	}
+
+	ids, err := pv.GenerateWinningPoStSectorChallenge(ctx, proofType, abi.ActorID(mid), rand, numProvSect)
 	if err != nil {
 		return nil, xerrors.Errorf("generating winning post challenges: %w", err)
 	}
@@ -560,6 +561,7 @@ func init() {
 	var actors []rt.VMActor
 	actors = append(actors, exported0.BuiltinActors()...)
 	actors = append(actors, exported2.BuiltinActors()...)
+	actors = append(actors, exported3.BuiltinActors()...)
 
 	for _, actor := range actors {
 		exports := actor.Exports()

chain/store/store_test.go

@@ -52,7 +52,7 @@ func BenchmarkGetRandomness(b *testing.B) {
 		b.Fatal(err)
 	}
 
-	bs, err := lr.Blockstore(repo.BlockstoreChain)
+	bs, err := lr.Blockstore(context.TODO(), repo.BlockstoreChain)
 	if err != nil {
 		b.Fatal(err)
 	}
@@ -65,7 +65,7 @@ func BenchmarkGetRandomness(b *testing.B) {
 		}
 	}()
 
-	mds, err := lr.Datastore("/metadata")
+	mds, err := lr.Datastore(context.Background(), "/metadata")
 	if err != nil {
 		b.Fatal(err)
 	}

chain/sync.go

@@ -34,7 +34,8 @@ import (
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
-	blst "github.com/supranational/blst/bindings/go"
+
+	ffi "github.com/filecoin-project/filecoin-ffi"
 
 	// named msgarray here to make it clear that these are the types used by
 	// messages, regardless of specs-actors version.
@@ -55,7 +56,6 @@ import (
 	"github.com/filecoin-project/lotus/chain/vm"
 	bstore "github.com/filecoin-project/lotus/lib/blockstore"
 	"github.com/filecoin-project/lotus/lib/sigs"
-	"github.com/filecoin-project/lotus/lib/sigs/bls"
 	"github.com/filecoin-project/lotus/metrics"
 )
 
@@ -676,6 +676,10 @@ func blockSanityChecks(h *types.BlockHeader) error {
 		return xerrors.Errorf("block had nil bls aggregate signature")
 	}
 
+	if h.Miner.Protocol() != address.ID {
+		return xerrors.Errorf("block had non-ID miner address")
+	}
+
 	return nil
 }
 
@@ -1178,17 +1182,21 @@ func (syncer *Syncer) verifyBlsAggregate(ctx context.Context, sig *crypto.Signat
 		trace.Int64Attribute("msgCount", int64(len(msgs))),
 	)
 
-	msgsS := make([]blst.Message, len(msgs))
+	msgsS := make([]ffi.Message, len(msgs))
+	pubksS := make([]ffi.PublicKey, len(msgs))
 	for i := 0; i < len(msgs); i++ {
 		msgsS[i] = msgs[i].Bytes()
+		copy(pubksS[i][:], pubks[i][:ffi.PublicKeyBytes])
 	}
 
+	sigS := new(ffi.Signature)
+	copy(sigS[:], sig.Data[:ffi.SignatureBytes])
+
 	if len(msgs) == 0 {
 		return nil
 	}
 
-	valid := new(bls.Signature).AggregateVerifyCompressed(sig.Data, pubks,
-		msgsS, []byte(bls.DST))
+	valid := ffi.HashVerify(sigS, msgsS, pubksS)
 	if !valid {
 		return xerrors.New("bls aggregate signature failed to verify")
 	}

chain/sync_manager_test.go

@@ -150,8 +150,11 @@ func TestSyncManagerEdgeCase(t *testing.T) {
 			t.Fatalf("Expected tipset %s to sync, but got %s", e1, last)
 		}
 
-		if len(sm.state) != 0 {
-			t.Errorf("active syncs expected empty but got: %d", len(sm.state))
+		sm.mx.Lock()
+		activeSyncs := len(sm.state)
+		sm.mx.Unlock()
+		if activeSyncs != 0 {
+			t.Errorf("active syncs expected empty but got: %d", activeSyncs)
 		}
 	})
 }

chain/types/blockheader.go

@@ -47,41 +47,24 @@ func NewBeaconEntry(round uint64, data []byte) BeaconEntry {
 }
 
 type BlockHeader struct {
-	Miner address.Address // 0
+	Miner                 address.Address    // 0 unique per block/miner
+	Ticket                *Ticket            // 1 unique per block/miner: should be a valid VRF
+	ElectionProof         *ElectionProof     // 2 unique per block/miner: should be a valid VRF
+	BeaconEntries         []BeaconEntry      // 3 identical for all blocks in same tipset
+	WinPoStProof          []proof2.PoStProof // 4 unique per block/miner
+	Parents               []cid.Cid          // 5 identical for all blocks in same tipset
+	ParentWeight          BigInt             // 6 identical for all blocks in same tipset
+	Height                abi.ChainEpoch     // 7 identical for all blocks in same tipset
+	ParentStateRoot       cid.Cid            // 8 identical for all blocks in same tipset
+	ParentMessageReceipts cid.Cid            // 9 identical for all blocks in same tipset
+	Messages              cid.Cid            // 10 unique per block
+	BLSAggregate          *crypto.Signature  // 11 unique per block: aggrregate of BLS messages from above
+	Timestamp             uint64             // 12 identical for all blocks in same tipset / hard-tied to the value of Height above
+	BlockSig              *crypto.Signature  // 13 unique per block/miner: miner signature
+	ForkSignaling         uint64             // 14 currently unused/undefined
+	ParentBaseFee         abi.TokenAmount    // 15 identical for all blocks in same tipset: the base fee after executing parent tipset
 
-	Ticket *Ticket // 1
-
-	ElectionProof *ElectionProof // 2
-
-	BeaconEntries []BeaconEntry // 3
-
-	WinPoStProof []proof2.PoStProof // 4
-
-	Parents []cid.Cid // 5
-
-	ParentWeight BigInt // 6
-
-	Height abi.ChainEpoch // 7
-
-	ParentStateRoot cid.Cid // 8
-
-	ParentMessageReceipts cid.Cid // 8
-
-	Messages cid.Cid // 10
-
-	BLSAggregate *crypto.Signature // 11
-
-	Timestamp uint64 // 12
-
-	BlockSig *crypto.Signature // 13
-
-	ForkSignaling uint64 // 14
-
-	// ParentBaseFee is the base fee after executing parent tipset
-	ParentBaseFee abi.TokenAmount // 15
-
-	// internal
-	validated bool // true if the signature has been validated
+	validated bool // internal, true if the signature has been validated
 }
 
 func (blk *BlockHeader) ToStorageBlock() (block.Block, error) {

chain/types/state.go

@@ -9,8 +9,10 @@ type StateTreeVersion uint64
 const (
 	// StateTreeVersion0 corresponds to actors < v2.
 	StateTreeVersion0 StateTreeVersion = iota
-	// StateTreeVersion1 corresponds to actors >= v2.
+	// StateTreeVersion1 corresponds to actors v2
 	StateTreeVersion1
+	// StateTreeVersion2 corresponds to actors >= v3.
+	StateTreeVersion2
 )
 
 type StateRoot struct {

chain/vm/invoker.go

@@ -17,6 +17,7 @@ import (
 	exported0 "github.com/filecoin-project/specs-actors/actors/builtin/exported"
 	exported2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/exported"
 	vmr "github.com/filecoin-project/specs-actors/v2/actors/runtime"
+	exported3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/exported"
 
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/exitcode"
@@ -62,6 +63,7 @@ func NewActorRegistry() *ActorRegistry {
 	// add builtInCode using: register(cid, singleton)
 	inv.Register(ActorsVersionPredicate(actors.Version0), exported0.BuiltinActors()...)
 	inv.Register(ActorsVersionPredicate(actors.Version2), exported2.BuiltinActors()...)
+	inv.Register(ActorsVersionPredicate(actors.Version3), exported3.BuiltinActors()...)
 
 	return inv
 }

chain/vm/mkactor.go

@@ -12,6 +12,7 @@ import (
 
 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
 
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/lotus/chain/actors/aerrors"
@@ -91,6 +92,8 @@ func newAccountActor(ver actors.Version) *types.Actor {
 		code = builtin0.AccountActorCodeID
 	case actors.Version2:
 		code = builtin2.AccountActorCodeID
+	case actors.Version3:
+		code = builtin3.AccountActorCodeID
 	default:
 		panic("unsupported actors version")
 	}

cli/backup.go

@@ -46,7 +46,7 @@ func BackupCmd(repoFlag string, rt repo.RepoType, getApi BackupApiFn) *cli.Comma
 		}
 		defer lr.Close() // nolint:errcheck
 
-		mds, err := lr.Datastore("/metadata")
+		mds, err := lr.Datastore(context.TODO(), "/metadata")
 		if err != nil {
 			return xerrors.Errorf("getting metadata datastore: %w", err)
 		}

cli/chain.go

@@ -58,6 +58,7 @@ var chainCmd = &cli.Command{
 		chainInspectUsage,
 		chainDecodeCmd,
 		chainEncodeCmd,
+		chainDisputeSetCmd,
 	},
 }
 

cli/disputer.go

@@ -0,0 +1,429 @@
+package cli
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+
+	"github.com/filecoin-project/go-state-types/abi"
+
+	"github.com/filecoin-project/go-address"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+
+	miner3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/miner"
+
+	"github.com/filecoin-project/go-state-types/big"
+	lapi "github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/types"
+	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/lotus/chain/store"
+	"github.com/urfave/cli/v2"
+)
+
+const Confidence = 10
+
+type minerDeadline struct {
+	miner address.Address
+	index uint64
+}
+
+var chainDisputeSetCmd = &cli.Command{
+	Name:  "disputer",
+	Usage: "interact with the window post disputer",
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:  "max-fee",
+			Usage: "Spend up to X FIL per DisputeWindowedPoSt message",
+		},
+		&cli.StringFlag{
+			Name:  "from",
+			Usage: "optionally specify the account to send messages from",
+		},
+	},
+	Subcommands: []*cli.Command{
+		disputerStartCmd,
+		disputerMsgCmd,
+	},
+}
+
+var disputerMsgCmd = &cli.Command{
+	Name:      "dispute",
+	Usage:     "Send a specific DisputeWindowedPoSt message",
+	ArgsUsage: "[minerAddress index postIndex]",
+	Flags:     []cli.Flag{},
+	Action: func(cctx *cli.Context) error {
+		if cctx.NArg() != 3 {
+			fmt.Println("Usage: dispute [minerAddress index postIndex]")
+			return nil
+		}
+
+		ctx := ReqContext(cctx)
+
+		api, closer, err := GetFullNodeAPI(cctx)
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		toa, err := address.NewFromString(cctx.Args().First())
+		if err != nil {
+			return fmt.Errorf("given 'miner' address %q was invalid: %w", cctx.Args().First(), err)
+		}
+
+		deadline, err := strconv.ParseUint(cctx.Args().Get(1), 10, 64)
+		if err != nil {
+			return err
+		}
+
+		postIndex, err := strconv.ParseUint(cctx.Args().Get(2), 10, 64)
+		if err != nil {
+			return err
+		}
+
+		fromAddr, err := getSender(ctx, api, cctx.String("from"))
+		if err != nil {
+			return err
+		}
+
+		dpp, aerr := actors.SerializeParams(&miner3.DisputeWindowedPoStParams{
+			Deadline:  deadline,
+			PoStIndex: postIndex,
+		})
+
+		if aerr != nil {
+			return xerrors.Errorf("failed to serailize params: %w", aerr)
+		}
+
+		dmsg := &types.Message{
+			To:     toa,
+			From:   fromAddr,
+			Value:  big.Zero(),
+			Method: builtin3.MethodsMiner.DisputeWindowedPoSt,
+			Params: dpp,
+		}
+
+		rslt, err := api.StateCall(ctx, dmsg, types.EmptyTSK)
+		if err != nil {
+			return xerrors.Errorf("failed to simulate dispute: %w", err)
+		}
+
+		if rslt.MsgRct.ExitCode == 0 {
+			mss, err := getMaxFee(cctx.String("max-fee"))
+			if err != nil {
+				return err
+			}
+
+			sm, err := api.MpoolPushMessage(ctx, dmsg, mss)
+			if err != nil {
+				return err
+			}
+
+			fmt.Println("dispute message ", sm.Cid())
+		} else {
+			fmt.Println("dispute is unsuccessful")
+		}
+
+		return nil
+	},
+}
+
+var disputerStartCmd = &cli.Command{
+	Name:      "start",
+	Usage:     "Start the window post disputer",
+	ArgsUsage: "[minerAddress]",
+	Flags: []cli.Flag{
+		&cli.Uint64Flag{
+			Name:  "start-epoch",
+			Usage: "only start disputing PoSts after this epoch ",
+		},
+	},
+	Action: func(cctx *cli.Context) error {
+		api, closer, err := GetFullNodeAPI(cctx)
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		ctx := ReqContext(cctx)
+
+		fromAddr, err := getSender(ctx, api, cctx.String("from"))
+		if err != nil {
+			return err
+		}
+
+		mss, err := getMaxFee(cctx.String("max-fee"))
+		if err != nil {
+			return err
+		}
+
+		startEpoch := abi.ChainEpoch(0)
+		if cctx.IsSet("height") {
+			startEpoch = abi.ChainEpoch(cctx.Uint64("height"))
+		}
+
+		fmt.Println("checking sync status")
+
+		if err := SyncWait(ctx, api, false); err != nil {
+			return xerrors.Errorf("sync wait: %w", err)
+		}
+
+		fmt.Println("setting up window post disputer")
+
+		// subscribe to head changes and validate the current value
+
+		headChanges, err := api.ChainNotify(ctx)
+		if err != nil {
+			return err
+		}
+
+		head, ok := <-headChanges
+		if !ok {
+			return xerrors.Errorf("Notify stream was invalid")
+		}
+
+		if len(head) != 1 {
+			return xerrors.Errorf("Notify first entry should have been one item")
+		}
+
+		if head[0].Type != store.HCCurrent {
+			return xerrors.Errorf("expected current head on Notify stream (got %s)", head[0].Type)
+		}
+
+		lastEpoch := head[0].Val.Height()
+		lastStatusCheckEpoch := lastEpoch
+
+		// build initial deadlineMap
+
+		minerList, err := api.StateListMiners(ctx, types.EmptyTSK)
+		if err != nil {
+			return err
+		}
+
+		knownMiners := make(map[address.Address]struct{})
+		deadlineMap := make(map[abi.ChainEpoch][]minerDeadline)
+		for _, miner := range minerList {
+			dClose, dl, err := makeMinerDeadline(ctx, api, miner)
+			if err != nil {
+				return xerrors.Errorf("making deadline: %w", err)
+			}
+
+			deadlineMap[dClose+Confidence] = append(deadlineMap[dClose+Confidence], *dl)
+
+			knownMiners[miner] = struct{}{}
+		}
+
+		// when this fires, check for newly created miners, and purge any "missed" epochs from deadlineMap
+		statusCheckTicker := time.NewTicker(time.Hour)
+		defer statusCheckTicker.Stop()
+
+		fmt.Println("starting up window post disputer")
+
+		applyTsk := func(tsk types.TipSetKey) error {
+			log.Infof("last checked height: %d", lastEpoch)
+			dls, ok := deadlineMap[lastEpoch]
+			delete(deadlineMap, lastEpoch)
+			if !ok || startEpoch >= lastEpoch {
+				// no deadlines closed at this epoch - Confidence, or we haven't reached the start cutoff yet
+				return nil
+			}
+
+			dpmsgs := make([]*types.Message, 0)
+
+			// TODO: Parallelizeable
+			for _, dl := range dls {
+				fullDeadlines, err := api.StateMinerDeadlines(ctx, dl.miner, tsk)
+				if err != nil {
+					return xerrors.Errorf("failed to load deadlines: %w", err)
+				}
+
+				if int(dl.index) >= len(fullDeadlines) {
+					return xerrors.Errorf("deadline index %d not found in deadlines", dl.index)
+				}
+
+				ms, err := makeDisputeWindowedPosts(ctx, api, dl, fullDeadlines[dl.index].DisputableProofCount, fromAddr)
+				if err != nil {
+					return xerrors.Errorf("failed to check for disputes: %w", err)
+				}
+
+				dpmsgs = append(dpmsgs, ms...)
+
+				dClose, dl, err := makeMinerDeadline(ctx, api, dl.miner)
+				if err != nil {
+					return xerrors.Errorf("making deadline: %w", err)
+				}
+
+				deadlineMap[dClose+Confidence] = append(deadlineMap[dClose+Confidence], *dl)
+			}
+
+			// TODO: Parallelizeable / can be integrated into the previous deadline-iterating for loop
+			for _, dpmsg := range dpmsgs {
+				log.Infof("disputing a PoSt from miner %s", dpmsg.To)
+				m, err := api.MpoolPushMessage(ctx, dpmsg, mss)
+				if err != nil {
+					log.Infof("failed to dispute post message: %s", err.Error())
+				} else {
+					log.Infof("disputed a PoSt in message: %s", m.Cid())
+				}
+			}
+
+			return nil
+		}
+
+		disputeLoop := func() error {
+			select {
+			case notif, ok := <-headChanges:
+				if !ok {
+					return xerrors.Errorf("head change channel errored")
+				}
+
+				for _, val := range notif {
+					switch val.Type {
+					case store.HCApply:
+						for ; lastEpoch <= val.Val.Height(); lastEpoch++ {
+							err := applyTsk(val.Val.Key())
+							if err != nil {
+								return err
+							}
+						}
+					case store.HCRevert:
+						// do nothing
+					default:
+						return xerrors.Errorf("unexpected head change type %s", val.Type)
+					}
+				}
+			case <-statusCheckTicker.C:
+				log.Infof("Running status check: ")
+
+				minerList, err = api.StateListMiners(ctx, types.EmptyTSK)
+				if err != nil {
+					return xerrors.Errorf("getting miner list: %w", err)
+				}
+
+				for _, m := range minerList {
+					_, ok := knownMiners[m]
+					if !ok {
+						dClose, dl, err := makeMinerDeadline(ctx, api, m)
+						if err != nil {
+							return xerrors.Errorf("making deadline: %w", err)
+						}
+
+						deadlineMap[dClose+Confidence] = append(deadlineMap[dClose+Confidence], *dl)
+
+						knownMiners[m] = struct{}{}
+					}
+				}
+
+				for ; lastStatusCheckEpoch < lastEpoch; lastStatusCheckEpoch++ {
+					// if an epoch got "skipped" from the deadlineMap somehow, just fry it now instead of letting it sit around forever
+					_, ok := deadlineMap[lastStatusCheckEpoch]
+					if ok {
+						log.Infof("epoch %d was skipped during execution, deleting it from deadlineMap")
+						delete(deadlineMap, lastStatusCheckEpoch)
+					}
+				}
+
+				log.Infof("Status check complete")
+			case <-ctx.Done():
+				return xerrors.Errorf("context cancelled")
+			}
+
+			return nil
+		}
+
+		for {
+			err := disputeLoop()
+			if err != nil {
+				fmt.Println("disputer shutting down: ", err)
+				break
+			}
+		}
+
+		return nil
+	},
+}
+
+// for a given miner, index, and maxPostIndex, tries to dispute posts from 0...postsSnapshotted-1
+// returns a list of DisputeWindowedPoSt msgs that are expected to succeed if sent
+func makeDisputeWindowedPosts(ctx context.Context, api lapi.FullNode, dl minerDeadline, postsSnapshotted uint64, sender address.Address) ([]*types.Message, error) {
+	disputes := make([]*types.Message, 0)
+
+	for i := uint64(0); i < postsSnapshotted; i++ {
+
+		dpp, aerr := actors.SerializeParams(&miner3.DisputeWindowedPoStParams{
+			Deadline:  dl.index,
+			PoStIndex: i,
+		})
+
+		if aerr != nil {
+			return nil, xerrors.Errorf("failed to serailize params: %w", aerr)
+		}
+
+		dispute := &types.Message{
+			To:     dl.miner,
+			From:   sender,
+			Value:  big.Zero(),
+			Method: builtin3.MethodsMiner.DisputeWindowedPoSt,
+			Params: dpp,
+		}
+
+		rslt, err := api.StateCall(ctx, dispute, types.EmptyTSK)
+		if err == nil && rslt.MsgRct.ExitCode == 0 {
+			disputes = append(disputes, dispute)
+		}
+
+	}
+
+	return disputes, nil
+}
+
+func makeMinerDeadline(ctx context.Context, api lapi.FullNode, mAddr address.Address) (abi.ChainEpoch, *minerDeadline, error) {
+	dl, err := api.StateMinerProvingDeadline(ctx, mAddr, types.EmptyTSK)
+	if err != nil {
+		return -1, nil, xerrors.Errorf("getting proving index list: %w", err)
+	}
+
+	return dl.Close, &minerDeadline{
+		miner: mAddr,
+		index: dl.Index,
+	}, nil
+}
+
+func getSender(ctx context.Context, api lapi.FullNode, fromStr string) (address.Address, error) {
+	if fromStr == "" {
+		return api.WalletDefaultAddress(ctx)
+	}
+
+	addr, err := address.NewFromString(fromStr)
+	if err != nil {
+		return address.Undef, err
+	}
+
+	has, err := api.WalletHas(ctx, addr)
+	if err != nil {
+		return address.Undef, err
+	}
+
+	if !has {
+		return address.Undef, xerrors.Errorf("wallet doesn't contain: %s ", addr)
+	}
+
+	return addr, nil
+}
+
+func getMaxFee(maxStr string) (*lapi.MessageSendSpec, error) {
+	if maxStr != "" {
+		maxFee, err := types.ParseFIL(maxStr)
+		if err != nil {
+			return nil, xerrors.Errorf("parsing max-fee: %w", err)
+		}
+		return &lapi.MessageSendSpec{
+			MaxFee: types.BigInt(maxFee),
+		}, nil
+	}
+
+	return nil, nil
+}

cli/state.go

@@ -935,6 +935,10 @@ var stateComputeStateCmd = &cli.Command{
 			Name:  "compute-state-output",
 			Usage: "a json file containing pre-existing compute-state output, to generate html reports without rerunning state changes",
 		},
+		&cli.BoolFlag{
+			Name:  "no-timing",
+			Usage: "don't show timing information in html traces",
+		},
 	},
 	Action: func(cctx *cli.Context) error {
 		api, closer, err := GetFullNodeAPI(cctx)
@@ -1026,7 +1030,9 @@ var stateComputeStateCmd = &cli.Command{
 				return c.Code, nil
 			}
 
-			return ComputeStateHTMLTempl(os.Stdout, ts, stout, getCode)
+			_, _ = fmt.Fprintln(os.Stderr, "computed state cid: ", stout.Root)
+
+			return ComputeStateHTMLTempl(os.Stdout, ts, stout, !cctx.Bool("no-timing"), getCode)
 		}
 
 		fmt.Println("computed state cid: ", stout.Root)
@@ -1147,8 +1153,11 @@ var compStateMsg = `
  {{if gt (len .Msg.Params) 0}}
   <div><pre class="params">{{JsonParams ($code) (.Msg.Method) (.Msg.Params) | html}}</pre></div>
  {{end}}
+ {{if PrintTiming}}
   <div><span class="slow-{{IsSlow .Duration}}-{{IsVerySlow .Duration}}">Took {{.Duration}}</span>, <span class="exit{{IntExit .MsgRct.ExitCode}}">Exit: <b>{{.MsgRct.ExitCode}}</b></span>{{if gt (len .MsgRct.Return) 0}}, Return{{end}}</div>
-
+ {{else}}
+  <div><span class="exit{{IntExit .MsgRct.ExitCode}}">Exit: <b>{{.MsgRct.ExitCode}}</b></span>{{if gt (len .MsgRct.Return) 0}}, Return{{end}}</div>
+ {{end}}
  {{if gt (len .MsgRct.Return) 0}}
   <div><pre class="ret">{{JsonReturn ($code) (.Msg.Method) (.MsgRct.Return) | html}}</pre></div>
  {{end}}
@@ -1174,7 +1183,7 @@ var compStateMsg = `
  {{range .GasCharges}}
  <tr><td>{{.Name}}{{if .Extra}}:{{.Extra}}{{end}}</td>
  {{template "gasC" .}}
- <td>{{.TimeTaken}}</td>
+ <td>{{if PrintTiming}}{{.TimeTaken}}{{end}}</td>
   <td>
    {{ $fImp := FirstImportant .Location }}
    {{ if $fImp }}
@@ -1213,7 +1222,7 @@ var compStateMsg = `
   {{with SumGas .GasCharges}}
   <tr class="sum"><td><b>Sum</b></td>
   {{template "gasC" .}}
-  <td>{{.TimeTaken}}</td>
+  <td>{{if PrintTiming}}{{.TimeTaken}}{{end}}</td>
   <td></td></tr>
   {{end}}
 </table>
@@ -1234,7 +1243,7 @@ type compStateHTMLIn struct {
 	Comp   *api.ComputeStateOutput
 }
 
-func ComputeStateHTMLTempl(w io.Writer, ts *types.TipSet, o *api.ComputeStateOutput, getCode func(addr address.Address) (cid.Cid, error)) error {
+func ComputeStateHTMLTempl(w io.Writer, ts *types.TipSet, o *api.ComputeStateOutput, printTiming bool, getCode func(addr address.Address) (cid.Cid, error)) error {
 	t, err := template.New("compute_state").Funcs(map[string]interface{}{
 		"GetCode":     getCode,
 		"GetMethod":   getMethod,
@@ -1247,6 +1256,7 @@ func ComputeStateHTMLTempl(w io.Writer, ts *types.TipSet, o *api.ComputeStateOut
 		"SumGas":      sumGas,
 		"CodeStr":     codeStr,
 		"Call":        call,
+		"PrintTiming": func() bool { return printTiming },
 		"FirstImportant": func(locs []types.Loc) *types.Loc {
 			if len(locs) != 0 {
 				for _, l := range locs {

cmd/lotus-bench/main.go

@@ -32,7 +32,6 @@ import (
 	lapi "github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/genesis"
 )
@@ -177,8 +176,6 @@ var sealBenchCmd = &cli.Command{
 		},
 	},
 	Action: func(c *cli.Context) error {
-		policy.AddSupportedProofTypes(abi.RegisteredSealProof_StackedDrg2KiBV1)
-
 		if c.Bool("no-gpu") {
 			err := os.Setenv("BELLMAN_NO_GPU", "1")
 			if err != nil {

cmd/lotus-gateway/endtoend_test.go

@@ -245,7 +245,7 @@ func startNodes(
 
 				// Create a gateway server in front of the full node
 				gapiImpl := newGatewayAPI(fullNode, lookbackCap, stateWaitLookbackLimit)
-				_, addr, err := builder.CreateRPCServer(gapiImpl)
+				_, addr, err := builder.CreateRPCServer(t, gapiImpl)
 				require.NoError(t, err)
 
 				// Create a gateway client API that connects to the gateway server

cmd/lotus-gateway/main.go

@@ -6,7 +6,9 @@ import (
 	"net/http"
 	"os"
 
+	"contrib.go.opencensus.io/exporter/prometheus"
 	"github.com/filecoin-project/go-jsonrpc"
+	promclient "github.com/prometheus/client_golang/prometheus"
 	"go.opencensus.io/tag"
 
 	"github.com/filecoin-project/lotus/build"
@@ -99,6 +101,17 @@ var runCmd = &cli.Command{
 		rpcServer.Register("Filecoin", metrics.MetricedGatewayAPI(NewGatewayAPI(api)))
 
 		mux.Handle("/rpc/v0", rpcServer)
+
+		registry := promclient.DefaultRegisterer.(*promclient.Registry)
+		exporter, err := prometheus.NewExporter(prometheus.Options{
+			Registry:  registry,
+			Namespace: "lotus_gw",
+		})
+		if err != nil {
+			return err
+		}
+		mux.Handle("/debug/metrics", exporter)
+
 		mux.PathPrefix("/").Handler(http.DefaultServeMux)
 
 		/*ah := &auth.Handler{

cmd/lotus-seal-worker/main.go

@@ -308,7 +308,7 @@ var runCmd = &cli.Command{
 
 			{
 				// init datastore for r.Exists
-				_, err := lr.Datastore("/metadata")
+				_, err := lr.Datastore(context.Background(), "/metadata")
 				if err != nil {
 					return err
 				}
@@ -327,7 +327,7 @@ var runCmd = &cli.Command{
 				log.Error("closing repo", err)
 			}
 		}()
-		ds, err := lr.Datastore("/metadata")
+		ds, err := lr.Datastore(context.Background(), "/metadata")
 		if err != nil {
 			return err
 		}

cmd/lotus-shed/balances.go

@@ -175,7 +175,7 @@ var chainBalanceStateCmd = &cli.Command{
 
 		defer lkrepo.Close() //nolint:errcheck
 
-		bs, err := lkrepo.Blockstore(repo.BlockstoreChain)
+		bs, err := lkrepo.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return fmt.Errorf("failed to open blockstore: %w", err)
 		}
@@ -188,7 +188,7 @@ var chainBalanceStateCmd = &cli.Command{
 			}
 		}()
 
-		mds, err := lkrepo.Datastore("/metadata")
+		mds, err := lkrepo.Datastore(context.Background(), "/metadata")
 		if err != nil {
 			return err
 		}
@@ -396,7 +396,7 @@ var chainPledgeCmd = &cli.Command{
 
 		defer lkrepo.Close() //nolint:errcheck
 
-		bs, err := lkrepo.Blockstore(repo.BlockstoreChain)
+		bs, err := lkrepo.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return xerrors.Errorf("failed to open blockstore: %w", err)
 		}
@@ -409,7 +409,7 @@ var chainPledgeCmd = &cli.Command{
 			}
 		}()
 
-		mds, err := lkrepo.Datastore("/metadata")
+		mds, err := lkrepo.Datastore(context.Background(), "/metadata")
 		if err != nil {
 			return err
 		}

cmd/lotus-shed/bitfield.go

@@ -17,6 +17,7 @@ import (
 
 var bitFieldCmd = &cli.Command{
 	Name:        "bitfield",
+	Usage:       "Bitfield analyze tool",
 	Description: "analyze bitfields",
 	Flags: []cli.Flag{
 		&cli.StringFlag{
@@ -26,54 +27,25 @@ var bitFieldCmd = &cli.Command{
 		},
 	},
 	Subcommands: []*cli.Command{
+		bitFieldEncodeCmd,
+		bitFieldDecodeCmd,
 		bitFieldRunsCmd,
 		bitFieldStatCmd,
-		bitFieldDecodeCmd,
+		bitFieldMergeCmd,
 		bitFieldIntersectCmd,
-		bitFieldEncodeCmd,
 		bitFieldSubCmd,
 	},
 }
 
 var bitFieldRunsCmd = &cli.Command{
 	Name:        "runs",
+	Usage:       "Bitfield bit runs",
 	Description: "print bit runs in a bitfield",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
 	Action: func(cctx *cli.Context) error {
-		var val string
-		if cctx.Args().Present() {
-			val = cctx.Args().Get(0)
-		} else {
-			b, err := ioutil.ReadAll(os.Stdin)
+		dec, err := decodeToByte(cctx, 0)
 		if err != nil {
 			return err
 		}
-			val = string(b)
-		}
-
-		var dec []byte
-		switch cctx.String("enc") {
-		case "base64":
-			d, err := base64.StdEncoding.DecodeString(val)
-			if err != nil {
-				return fmt.Errorf("decoding base64 value: %w", err)
-			}
-			dec = d
-		case "hex":
-			d, err := hex.DecodeString(val)
-			if err != nil {
-				return fmt.Errorf("decoding hex value: %w", err)
-			}
-			dec = d
-		default:
-			return fmt.Errorf("unrecognized encoding: %s", cctx.String("enc"))
-		}
 
 		rle, err := rlepluslazy.FromBuf(dec)
 		if err != nil {
@@ -98,7 +70,7 @@ var bitFieldRunsCmd = &cli.Command{
 				s = "FALSE"
 			}
 
-			fmt.Printf("@%d %s * %d\n", idx, s, r.Len)
+			fmt.Printf("@%08d %s * %d\n", idx, s, r.Len)
 
 			idx += r.Len
 		}
@@ -109,43 +81,14 @@ var bitFieldRunsCmd = &cli.Command{
 
 var bitFieldStatCmd = &cli.Command{
 	Name:        "stat",
+	Usage:       "Bitfield stats",
 	Description: "print bitfield stats",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
 	Action: func(cctx *cli.Context) error {
-		var val string
-		if cctx.Args().Present() {
-			val = cctx.Args().Get(0)
-		} else {
-			b, err := ioutil.ReadAll(os.Stdin)
+		dec, err := decodeToByte(cctx, 0)
 		if err != nil {
 			return err
 		}
-			val = string(b)
-		}
-
-		var dec []byte
-		switch cctx.String("enc") {
-		case "base64":
-			d, err := base64.StdEncoding.DecodeString(val)
-			if err != nil {
-				return fmt.Errorf("decoding base64 value: %w", err)
-			}
-			dec = d
-		case "hex":
-			d, err := hex.DecodeString(val)
-			if err != nil {
-				return fmt.Errorf("decoding hex value: %w", err)
-			}
-			dec = d
-		default:
-			return fmt.Errorf("unrecognized encoding: %s", cctx.String("enc"))
-		}
+		fmt.Printf("Raw length: %d bits (%d bytes)\n", len(dec)*8, len(dec))
 
 		rle, err := rlepluslazy.FromBuf(dec)
 		if err != nil {
@@ -157,10 +100,7 @@ var bitFieldStatCmd = &cli.Command{
 			return xerrors.Errorf("getting run iterator: %w", err)
 		}
 
-		fmt.Printf("Raw length: %d bits (%d bytes)\n", len(dec)*8, len(dec))
-
 		var ones, zeros, oneRuns, zeroRuns, invalid uint64
-
 		for rit.HasNext() {
 			r, err := rit.NextRun()
 			if err != nil {
@@ -195,14 +135,8 @@ var bitFieldStatCmd = &cli.Command{
 
 var bitFieldDecodeCmd = &cli.Command{
 	Name:        "decode",
+	Usage:       "Bitfield to decimal number",
 	Description: "decode bitfield and print all numbers in it",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
 	Action: func(cctx *cli.Context) error {
 		rle, err := decode(cctx, 0)
 		if err != nil {
@@ -219,43 +153,61 @@ var bitFieldDecodeCmd = &cli.Command{
 	},
 }
 
-var bitFieldIntersectCmd = &cli.Command{
-	Name:        "intersect",
-	Description: "intersect 2 bitfields and print the resulting bitfield as base64",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
+var bitFieldMergeCmd = &cli.Command{
+	Name:        "merge",
+	Usage:       "Merge 2 bitfields",
+	Description: "Merge 2 bitfields and print the resulting bitfield",
 	Action: func(cctx *cli.Context) error {
+		a, err := decode(cctx, 0)
+		if err != nil {
+			return err
+		}
+
 		b, err := decode(cctx, 1)
 		if err != nil {
 			return err
 		}
 
+		o, err := bitfield.MergeBitFields(a, b)
+		if err != nil {
+			return xerrors.Errorf("merge: %w", err)
+		}
+
+		str, err := encode(cctx, o)
+		if err != nil {
+			return err
+		}
+		fmt.Println(str)
+
+		return nil
+	},
+}
+
+var bitFieldIntersectCmd = &cli.Command{
+	Name:        "intersect",
+	Usage:       "Intersect 2 bitfields",
+	Description: "intersect 2 bitfields and print the resulting bitfield",
+	Action: func(cctx *cli.Context) error {
 		a, err := decode(cctx, 0)
 		if err != nil {
 			return err
 		}
 
+		b, err := decode(cctx, 1)
+		if err != nil {
+			return err
+		}
+
 		o, err := bitfield.IntersectBitField(a, b)
 		if err != nil {
 			return xerrors.Errorf("intersect: %w", err)
 		}
 
-		s, err := o.RunIterator()
+		str, err := encode(cctx, o)
 		if err != nil {
 			return err
 		}
-
-		bytes, err := rlepluslazy.EncodeRuns(s, []byte{})
-		if err != nil {
-			return err
-		}
-
-		fmt.Println(base64.StdEncoding.EncodeToString(bytes))
+		fmt.Println(str)
 
 		return nil
 	},
@@ -263,41 +215,29 @@ var bitFieldIntersectCmd = &cli.Command{
 
 var bitFieldSubCmd = &cli.Command{
 	Name:        "sub",
-	Description: "subtract 2 bitfields and print the resulting bitfield as base64",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
+	Usage:       "Subtract 2 bitfields",
+	Description: "subtract 2 bitfields and print the resulting bitfield",
 	Action: func(cctx *cli.Context) error {
-		b, err := decode(cctx, 1)
+		a, err := decode(cctx, 0)
 		if err != nil {
 			return err
 		}
 
-		a, err := decode(cctx, 0)
+		b, err := decode(cctx, 1)
 		if err != nil {
 			return err
 		}
 
 		o, err := bitfield.SubtractBitField(a, b)
 		if err != nil {
-			return xerrors.Errorf("intersect: %w", err)
+			return xerrors.Errorf("subtract: %w", err)
 		}
 
-		s, err := o.RunIterator()
+		str, err := encode(cctx, o)
 		if err != nil {
 			return err
 		}
-
-		bytes, err := rlepluslazy.EncodeRuns(s, []byte{})
-		if err != nil {
-			return err
-		}
-
-		fmt.Println(base64.StdEncoding.EncodeToString(bytes))
+		fmt.Println(str)
 
 		return nil
 	},
@@ -305,15 +245,9 @@ var bitFieldSubCmd = &cli.Command{
 
 var bitFieldEncodeCmd = &cli.Command{
 	Name:        "encode",
+	Usage:       "Decimal number to bitfield",
 	Description: "encode a series of decimal numbers into a bitfield",
 	ArgsUsage:   "[infile]",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "enc",
-			Value: "base64",
-			Usage: "specify input encoding to parse",
-		},
-	},
 	Action: func(cctx *cli.Context) error {
 		f, err := os.Open(cctx.Args().First())
 		if err != nil {
@@ -331,38 +265,64 @@ var bitFieldEncodeCmd = &cli.Command{
 			out.Set(i)
 		}
 
-		s, err := out.RunIterator()
+		str, err := encode(cctx, out)
 		if err != nil {
 			return err
 		}
-
-		bytes, err := rlepluslazy.EncodeRuns(s, []byte{})
-		if err != nil {
-			return err
-		}
-
-		fmt.Println(base64.StdEncoding.EncodeToString(bytes))
+		fmt.Println(str)
 
 		return nil
 	},
 }
 
-func decode(cctx *cli.Context, a int) (bitfield.BitField, error) {
-	var val string
-	if cctx.Args().Present() {
-		if a >= cctx.NArg() {
-			return bitfield.BitField{}, xerrors.Errorf("need more than %d args", a)
+func encode(cctx *cli.Context, field bitfield.BitField) (string, error) {
+	s, err := field.RunIterator()
+	if err != nil {
+		return "", err
 	}
-		val = cctx.Args().Get(a)
-	} else {
-		if a > 0 {
-			return bitfield.BitField{}, xerrors.Errorf("need more than %d args", a)
+
+	bytes, err := rlepluslazy.EncodeRuns(s, []byte{})
+	if err != nil {
+		return "", err
 	}
-		b, err := ioutil.ReadAll(os.Stdin)
+
+	var str string
+	switch cctx.String("enc") {
+	case "base64":
+		str = base64.StdEncoding.EncodeToString(bytes)
+	case "hex":
+		str = hex.EncodeToString(bytes)
+	default:
+		return "", fmt.Errorf("unrecognized encoding: %s", cctx.String("enc"))
+	}
+
+	return str, nil
+
+}
+func decode(cctx *cli.Context, i int) (bitfield.BitField, error) {
+	b, err := decodeToByte(cctx, i)
 	if err != nil {
 		return bitfield.BitField{}, err
 	}
-		val = string(b)
+	return bitfield.NewFromBytes(b)
+}
+
+func decodeToByte(cctx *cli.Context, i int) ([]byte, error) {
+	var val string
+	if cctx.Args().Present() {
+		if i >= cctx.NArg() {
+			return nil, xerrors.Errorf("need more than %d args", i)
+		}
+		val = cctx.Args().Get(i)
+	} else {
+		if i > 0 {
+			return nil, xerrors.Errorf("need more than %d args", i)
+		}
+		r, err := ioutil.ReadAll(os.Stdin)
+		if err != nil {
+			return nil, err
+		}
+		val = string(r)
 	}
 
 	var dec []byte
@@ -370,18 +330,18 @@ func decode(cctx *cli.Context, a int) (bitfield.BitField, error) {
 	case "base64":
 		d, err := base64.StdEncoding.DecodeString(val)
 		if err != nil {
-			return bitfield.BitField{}, fmt.Errorf("decoding base64 value: %w", err)
+			return nil, fmt.Errorf("decoding base64 value: %w", err)
 		}
 		dec = d
 	case "hex":
 		d, err := hex.DecodeString(val)
 		if err != nil {
-			return bitfield.BitField{}, fmt.Errorf("decoding hex value: %w", err)
+			return nil, fmt.Errorf("decoding hex value: %w", err)
 		}
 		dec = d
 	default:
-		return bitfield.BitField{}, fmt.Errorf("unrecognized encoding: %s", cctx.String("enc"))
+		return nil, fmt.Errorf("unrecognized encoding: %s", cctx.String("enc"))
 	}
 
-	return bitfield.NewFromBytes(dec)
+	return dec, nil
 }

cmd/lotus-shed/datastore.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bufio"
+	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -75,7 +76,7 @@ var datastoreListCmd = &cli.Command{
 		}
 		defer lr.Close() //nolint:errcheck
 
-		ds, err := lr.Datastore(datastore.NewKey(cctx.Args().First()).String())
+		ds, err := lr.Datastore(context.Background(), datastore.NewKey(cctx.Args().First()).String())
 		if err != nil {
 			return err
 		}
@@ -120,7 +121,7 @@ var datastoreGetCmd = &cli.Command{
 	},
 	ArgsUsage: "[namespace key]",
 	Action: func(cctx *cli.Context) error {
-		logging.SetLogLevel("badger", "ERROR") // nolint:errchec
+		logging.SetLogLevel("badger", "ERROR") // nolint:errcheck
 
 		r, err := repo.NewFS(cctx.String("repo"))
 		if err != nil {
@@ -141,7 +142,7 @@ var datastoreGetCmd = &cli.Command{
 		}
 		defer lr.Close() //nolint:errcheck
 
-		ds, err := lr.Datastore(datastore.NewKey(cctx.Args().First()).String())
+		ds, err := lr.Datastore(context.Background(), datastore.NewKey(cctx.Args().First()).String())
 		if err != nil {
 			return err
 		}

cmd/lotus-shed/export.go

@@ -72,7 +72,7 @@ var exportChainCmd = &cli.Command{
 
 		defer fi.Close() //nolint:errcheck
 
-		bs, err := lr.Blockstore(repo.BlockstoreChain)
+		bs, err := lr.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return fmt.Errorf("failed to open blockstore: %w", err)
 		}
@@ -85,7 +85,7 @@ var exportChainCmd = &cli.Command{
 			}
 		}()
 
-		mds, err := lr.Datastore("/metadata")
+		mds, err := lr.Datastore(context.Background(), "/metadata")
 		if err != nil {
 			return err
 		}

cmd/lotus-shed/import-car.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"encoding/hex"
 	"fmt"
 	"io"
@@ -24,6 +25,8 @@ var importCarCmd = &cli.Command{
 			return xerrors.Errorf("opening fs repo: %w", err)
 		}
 
+		ctx := context.TODO()
+
 		exists, err := r.Exists()
 		if err != nil {
 			return err
@@ -44,7 +47,7 @@ var importCarCmd = &cli.Command{
 			return xerrors.Errorf("opening the car file: %w", err)
 		}
 
-		bs, err := lr.Blockstore(repo.BlockstoreChain)
+		bs, err := lr.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return err
 		}
@@ -99,6 +102,8 @@ var importObjectCmd = &cli.Command{
 			return xerrors.Errorf("opening fs repo: %w", err)
 		}
 
+		ctx := context.TODO()
+
 		exists, err := r.Exists()
 		if err != nil {
 			return err
@@ -113,7 +118,7 @@ var importObjectCmd = &cli.Command{
 		}
 		defer lr.Close() //nolint:errcheck
 
-		bs, err := lr.Blockstore(repo.BlockstoreChain)
+		bs, err := lr.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return fmt.Errorf("failed to open blockstore: %w", err)
 		}

cmd/lotus-shed/pruning.go

@@ -131,7 +131,7 @@ var stateTreePruneCmd = &cli.Command{
 
 		defer lkrepo.Close() //nolint:errcheck
 
-		bs, err := lkrepo.Blockstore(repo.BlockstoreChain)
+		bs, err := lkrepo.Blockstore(ctx, repo.BlockstoreChain)
 		if err != nil {
 			return fmt.Errorf("failed to open blockstore: %w", err)
 		}
@@ -151,7 +151,7 @@ var stateTreePruneCmd = &cli.Command{
 			return fmt.Errorf("only badger blockstores are supported")
 		}
 
-		mds, err := lkrepo.Datastore("/metadata")
+		mds, err := lkrepo.Datastore(context.Background(), "/metadata")
 		if err != nil {
 			return err
 		}

cmd/lotus-storage-miner/actor_test.go

@@ -50,7 +50,7 @@ func TestWorkerKeyChange(t *testing.T) {
 
 	blocktime := 1 * time.Millisecond
 
-	n, sn := builder.MockSbBuilder(t, []test.FullNodeOpts{test.FullNodeWithActorsV2At(1), test.FullNodeWithActorsV2At(1)}, test.OneMiner)
+	n, sn := builder.MockSbBuilder(t, []test.FullNodeOpts{test.FullNodeWithActorsV3At(2), test.FullNodeWithActorsV3At(2)}, test.OneMiner)
 
 	client1 := n[0]
 	client2 := n[1]

cmd/lotus-storage-miner/init.go

@@ -312,6 +312,7 @@ func migratePreSealMeta(ctx context.Context, api lapi.FullNode, metadata string,
 					},
 					DealInfo: &sealing.DealInfo{
 						DealID:       dealID,
+						DealProposal: &sector.Deal,
 						DealSchedule: sealing.DealSchedule{
 							StartEpoch: sector.Deal.StartEpoch,
 							EndEpoch:   sector.Deal.EndEpoch,
@@ -416,7 +417,7 @@ func storageMinerInit(ctx context.Context, cctx *cli.Context, api lapi.FullNode,
 		return xerrors.Errorf("peer ID from private key: %w", err)
 	}
 
-	mds, err := lr.Datastore("/metadata")
+	mds, err := lr.Datastore(context.TODO(), "/metadata")
 	if err != nil {
 		return err
 	}

cmd/lotus-storage-miner/init_restore.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"encoding/json"
 	"io/ioutil"
 	"os"
@@ -190,7 +191,7 @@ var initRestoreCmd = &cli.Command{
 
 		log.Info("Restoring metadata backup")
 
-		mds, err := lr.Datastore("/metadata")
+		mds, err := lr.Datastore(context.TODO(), "/metadata")
 		if err != nil {
 			return err
 		}

cmd/lotus-storage-miner/proving.go

@@ -430,11 +430,6 @@ var provingCheckProvableCmd = &cli.Command{
 			return err
 		}
 
-		pf, err := info.SealProofType.RegisteredWindowPoStProof()
-		if err != nil {
-			return err
-		}
-
 		partitions, err := api.StateMinerPartitions(ctx, addr, dlIdx, types.EmptyTSK)
 		if err != nil {
 			return err
@@ -463,7 +458,7 @@ var provingCheckProvableCmd = &cli.Command{
 				})
 			}
 
-			bad, err := sapi.CheckProvable(ctx, pf, tocheck, cctx.Bool("slow"))
+			bad, err := sapi.CheckProvable(ctx, info.WindowPoStProofType, tocheck, cctx.Bool("slow"))
 			if err != nil {
 				return err
 			}

cmd/lotus-storage-miner/sectors.go

@@ -249,6 +249,7 @@ var sectorsListCmd = &cli.Command{
 			tablewriter.Col("Events"),
 			tablewriter.Col("Deals"),
 			tablewriter.Col("DealWeight"),
+			tablewriter.Col("VerifiedPower"),
 			tablewriter.NewLineCol("Error"),
 			tablewriter.NewLineCol("RecoveryTimeout"))
 
@@ -268,9 +269,11 @@ var sectorsListCmd = &cli.Command{
 				_, inSSet := commitedIDs[s]
 				_, inASet := activeIDs[s]
 
-				dw := .0
+				dw, vp := .0, .0
 				if st.Expiration-st.Activation > 0 {
-					dw = float64(big.Div(st.DealWeight, big.NewInt(int64(st.Expiration-st.Activation))).Uint64())
+					rdw := big.Add(st.DealWeight, st.VerifiedDealWeight)
+					dw = float64(big.Div(rdw, big.NewInt(int64(st.Expiration-st.Activation))).Uint64())
+					vp = float64(big.Div(big.Mul(st.VerifiedDealWeight, big.NewInt(9)), big.NewInt(int64(st.Expiration-st.Activation))).Uint64())
 				}
 
 				var deals int
@@ -309,6 +312,9 @@ var sectorsListCmd = &cli.Command{
 
 						if !fast && deals > 0 {
 							m["DealWeight"] = units.BytesSize(dw)
+							if vp > 0 {
+								m["VerifiedPower"] = color.GreenString(units.BytesSize(vp))
+							}
 						}
 
 						if st.Early > 0 {

cmd/lotus-wallet/main.go

@@ -118,7 +118,7 @@ var runCmd = &cli.Command{
 
 		var w api.WalletAPI = lw
 		if cctx.Bool("ledger") {
-			ds, err := lr.Datastore("/metadata")
+			ds, err := lr.Datastore(context.Background(), "/metadata")
 			if err != nil {
 				return err
 			}

cmd/lotus/backup.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"os"
 
 	dstore "github.com/ipfs/go-datastore"
@@ -87,7 +88,7 @@ func restore(cctx *cli.Context, r repo.Repo) error {
 
 	log.Info("Restoring metadata backup")
 
-	mds, err := lr.Datastore("/metadata")
+	mds, err := lr.Datastore(context.TODO(), "/metadata")
 	if err != nil {
 		return err
 	}

cmd/lotus/daemon.go

@@ -254,7 +254,7 @@ var DaemonCmd = &cli.Command{
 				issnapshot = true
 			}
 
-			if err := ImportChain(r, chainfile, issnapshot); err != nil {
+			if err := ImportChain(ctx, r, chainfile, issnapshot); err != nil {
 				return err
 			}
 			if cctx.Bool("halt-after-import") {
@@ -389,7 +389,7 @@ func importKey(ctx context.Context, api api.FullNode, f string) error {
 	return nil
 }
 
-func ImportChain(r repo.Repo, fname string, snapshot bool) (err error) {
+func ImportChain(ctx context.Context, r repo.Repo, fname string, snapshot bool) (err error) {
 	var rd io.Reader
 	var l int64
 	if strings.HasPrefix(fname, "http://") || strings.HasPrefix(fname, "https://") {
@@ -432,12 +432,12 @@ func ImportChain(r repo.Repo, fname string, snapshot bool) (err error) {
 	}
 	defer lr.Close() //nolint:errcheck
 
-	bs, err := lr.Blockstore(repo.BlockstoreChain)
+	bs, err := lr.Blockstore(ctx, repo.BlockstoreChain)
 	if err != nil {
 		return xerrors.Errorf("failed to open blockstore: %w", err)
 	}
 
-	mds, err := lr.Datastore("/metadata")
+	mds, err := lr.Datastore(context.TODO(), "/metadata")
 	if err != nil {
 		return err
 	}
@@ -473,7 +473,7 @@ func ImportChain(r repo.Repo, fname string, snapshot bool) (err error) {
 		return xerrors.Errorf("flushing validation cache failed: %w", err)
 	}
 
-	gb, err := cst.GetTipsetByHeight(context.TODO(), 0, ts, true)
+	gb, err := cst.GetTipsetByHeight(ctx, 0, ts, true)
 	if err != nil {
 		return err
 	}
@@ -487,13 +487,13 @@ func ImportChain(r repo.Repo, fname string, snapshot bool) (err error) {
 
 	if !snapshot {
 		log.Infof("validating imported chain...")
-		if err := stm.ValidateChain(context.TODO(), ts); err != nil {
+		if err := stm.ValidateChain(ctx, ts); err != nil {
 			return xerrors.Errorf("chain validation failed: %w", err)
 		}
 	}
 
 	log.Infof("accepting %s as new head", ts.Cids())
-	if err := cst.ForceHeadSilent(context.Background(), ts); err != nil {
+	if err := cst.ForceHeadSilent(ctx, ts); err != nil {
 		return err
 	}
 

documentation/en/api-methods.md

@@ -4028,7 +4028,7 @@ Response:
   "WorkerChangeEpoch": 10101,
   "PeerId": "12D3KooWGzxzKZYveHXtpG6AsrUJBcWxHBFS2HsEoGTxrMLvKXtf",
   "Multiaddrs": null,
-  "SealProofType": 8,
+  "WindowPoStProofType": 8,
   "SectorSize": 34359738368,
   "WindowPoStPartitionSectors": 42,
   "ConsensusFaultElapsed": 10101

extern/blst

@@ -1 +0,0 @@
-Subproject commit 1cbb16ed9580dcd3e9593b71221fcf2a048faaef

extern/filecoin-ffi

@@ -1 +1 @@
-Subproject commit 1d9cb3e8ff53f51f9318fc57e5d00bc79bdc0128
+Subproject commit 62f89f108a6a8fe9ad6ed52fb7ffbf8594d7ae5c

extern/sector-storage/manager.go

@@ -285,9 +285,19 @@ func (m *Manager) ReadPiece(ctx context.Context, sink io.Writer, sector storage.
 	if unsealed == cid.Undef {
 		return xerrors.Errorf("cannot unseal piece (sector: %d, offset: %d size: %d) - unsealed cid is undefined", sector, offset, size)
 	}
+
+	ssize, err := sector.ProofType.SectorSize()
+	if err != nil {
+		return xerrors.Errorf("getting sector size: %w", err)
+	}
+
 	err = m.sched.Schedule(ctx, sector, sealtasks.TTUnseal, selector, unsealFetch, func(ctx context.Context, w Worker) error {
 		// TODO: make restartable
-		_, err := m.waitSimpleCall(ctx)(w.UnsealPiece(ctx, sector, offset, size, ticket, unsealed))
+
+		// NOTE: we're unsealing the whole sector here as with SDR we can't really
+		//  unseal the sector partially. Requesting the whole sector here can
+		//  save us some work in case another piece is requested from here
+		_, err := m.waitSimpleCall(ctx)(w.UnsealPiece(ctx, sector, 0, abi.PaddedPieceSize(ssize).Unpadded(), ticket, unsealed))
 		return err
 	})
 	if err != nil {

extern/storage-sealing/cbor_gen.go

@@ -7,6 +7,7 @@ import (
 	"io"
 
 	abi "github.com/filecoin-project/go-state-types/abi"
+	market "github.com/filecoin-project/specs-actors/actors/builtin/market"
 	miner "github.com/filecoin-project/specs-actors/actors/builtin/miner"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
@@ -135,7 +136,7 @@ func (t *DealInfo) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{164}); err != nil {
+	if _, err := w.Write([]byte{165}); err != nil {
 		return err
 	}
 
@@ -179,6 +180,22 @@ func (t *DealInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
+	// t.DealProposal (market.DealProposal) (struct)
+	if len("DealProposal") > cbg.MaxLength {
+		return xerrors.Errorf("Value in field \"DealProposal\" was too long")
+	}
+
+	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("DealProposal"))); err != nil {
+		return err
+	}
+	if _, err := io.WriteString(w, string("DealProposal")); err != nil {
+		return err
+	}
+
+	if err := t.DealProposal.MarshalCBOR(w); err != nil {
+		return err
+	}
+
 	// t.DealSchedule (sealing.DealSchedule) (struct)
 	if len("DealSchedule") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"DealSchedule\" was too long")
@@ -283,6 +300,26 @@ func (t *DealInfo) UnmarshalCBOR(r io.Reader) error {
 				}
 				t.DealID = abi.DealID(extra)
 
+			}
+			// t.DealProposal (market.DealProposal) (struct)
+		case "DealProposal":
+
+			{
+
+				b, err := br.ReadByte()
+				if err != nil {
+					return err
+				}
+				if b != cbg.CborNull[0] {
+					if err := br.UnreadByte(); err != nil {
+						return err
+					}
+					t.DealProposal = new(market.DealProposal)
+					if err := t.DealProposal.UnmarshalCBOR(br); err != nil {
+						return xerrors.Errorf("unmarshaling t.DealProposal pointer: %w", err)
+					}
+				}
+
 			}
 			// t.DealSchedule (sealing.DealSchedule) (struct)
 		case "DealSchedule":

extern/storage-sealing/checks.go

@@ -53,7 +53,7 @@ func checkPieces(ctx context.Context, maddr address.Address, si SectorInfo, api
 			continue
 		}
 
-		proposal, err := api.StateMarketStorageDeal(ctx, p.DealInfo.DealID, tok)
+		proposal, err := api.StateMarketStorageDealProposal(ctx, p.DealInfo.DealID, tok)
 		if err != nil {
 			return &ErrInvalidDeals{xerrors.Errorf("getting deal %d for piece %d: %w", p.DealInfo.DealID, i, err)}
 		}

extern/storage-sealing/currentdealinfo.go

@@ -0,0 +1,209 @@
+package sealing
+
+import (
+	"bytes"
+	"context"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/exitcode"
+	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
+	"github.com/filecoin-project/lotus/chain/types"
+	market2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
+	"github.com/ipfs/go-cid"
+	"golang.org/x/xerrors"
+)
+
+type CurrentDealInfoAPI interface {
+	ChainGetMessage(context.Context, cid.Cid) (*types.Message, error)
+	StateLookupID(context.Context, address.Address, TipSetToken) (address.Address, error)
+	StateMarketStorageDeal(context.Context, abi.DealID, TipSetToken) (*api.MarketDeal, error)
+	StateSearchMsg(context.Context, cid.Cid) (*MsgLookup, error)
+}
+
+type CurrentDealInfo struct {
+	DealID           abi.DealID
+	MarketDeal       *api.MarketDeal
+	PublishMsgTipSet TipSetToken
+}
+
+type CurrentDealInfoManager struct {
+	CDAPI CurrentDealInfoAPI
+}
+
+// GetCurrentDealInfo gets the current deal state and deal ID.
+// Note that the deal ID is assigned when the deal is published, so it may
+// have changed if there was a reorg after the deal was published.
+func (mgr *CurrentDealInfoManager) GetCurrentDealInfo(ctx context.Context, tok TipSetToken, proposal *market.DealProposal, publishCid cid.Cid) (CurrentDealInfo, error) {
+	// Lookup the deal ID by comparing the deal proposal to the proposals in
+	// the publish deals message, and indexing into the message return value
+	dealID, pubMsgTok, err := mgr.dealIDFromPublishDealsMsg(ctx, tok, proposal, publishCid)
+	if err != nil {
+		return CurrentDealInfo{}, err
+	}
+
+	// Lookup the deal state by deal ID
+	marketDeal, err := mgr.CDAPI.StateMarketStorageDeal(ctx, dealID, tok)
+	if err == nil && proposal != nil {
+		// Make sure the retrieved deal proposal matches the target proposal
+		equal, err := mgr.CheckDealEquality(ctx, tok, *proposal, marketDeal.Proposal)
+		if err != nil {
+			return CurrentDealInfo{}, err
+		}
+		if !equal {
+			return CurrentDealInfo{}, xerrors.Errorf("Deal proposals for publish message %s did not match", publishCid)
+		}
+	}
+	return CurrentDealInfo{DealID: dealID, MarketDeal: marketDeal, PublishMsgTipSet: pubMsgTok}, err
+}
+
+// dealIDFromPublishDealsMsg looks up the publish deals message by cid, and finds the deal ID
+// by looking at the message return value
+func (mgr *CurrentDealInfoManager) dealIDFromPublishDealsMsg(ctx context.Context, tok TipSetToken, proposal *market.DealProposal, publishCid cid.Cid) (abi.DealID, TipSetToken, error) {
+	dealID := abi.DealID(0)
+
+	// Get the return value of the publish deals message
+	lookup, err := mgr.CDAPI.StateSearchMsg(ctx, publishCid)
+	if err != nil {
+		return dealID, nil, xerrors.Errorf("looking for publish deal message %s: search msg failed: %w", publishCid, err)
+	}
+
+	if lookup.Receipt.ExitCode != exitcode.Ok {
+		return dealID, nil, xerrors.Errorf("looking for publish deal message %s: non-ok exit code: %s", publishCid, lookup.Receipt.ExitCode)
+	}
+
+	var retval market.PublishStorageDealsReturn
+	if err := retval.UnmarshalCBOR(bytes.NewReader(lookup.Receipt.Return)); err != nil {
+		return dealID, nil, xerrors.Errorf("looking for publish deal message %s: unmarshalling message return: %w", publishCid, err)
+	}
+
+	// Previously, publish deals messages contained a single deal, and the
+	// deal proposal was not included in the sealing deal info.
+	// So check if the proposal is nil and check the number of deals published
+	// in the message.
+	if proposal == nil {
+		if len(retval.IDs) > 1 {
+			return dealID, nil, xerrors.Errorf(
+				"getting deal ID from publish deal message %s: "+
+					"no deal proposal supplied but message return value has more than one deal (%d deals)",
+				publishCid, len(retval.IDs))
+		}
+
+		// There is a single deal in this publish message and no deal proposal
+		// was supplied, so we have nothing to compare against. Just assume
+		// the deal ID is correct.
+		return retval.IDs[0], lookup.TipSetTok, nil
+	}
+
+	// Get the parameters to the publish deals message
+	pubmsg, err := mgr.CDAPI.ChainGetMessage(ctx, publishCid)
+	if err != nil {
+		return dealID, nil, xerrors.Errorf("getting publish deal message %s: %w", publishCid, err)
+	}
+
+	var pubDealsParams market2.PublishStorageDealsParams
+	if err := pubDealsParams.UnmarshalCBOR(bytes.NewReader(pubmsg.Params)); err != nil {
+		return dealID, nil, xerrors.Errorf("unmarshalling publish deal message params for message %s: %w", publishCid, err)
+	}
+
+	// Scan through the deal proposals in the message parameters to find the
+	// index of the target deal proposal
+	dealIdx := -1
+	for i, paramDeal := range pubDealsParams.Deals {
+		eq, err := mgr.CheckDealEquality(ctx, tok, *proposal, market.DealProposal(paramDeal.Proposal))
+		if err != nil {
+			return dealID, nil, xerrors.Errorf("comparing publish deal message %s proposal to deal proposal: %w", publishCid, err)
+		}
+		if eq {
+			dealIdx = i
+			break
+		}
+	}
+
+	if dealIdx == -1 {
+		return dealID, nil, xerrors.Errorf("could not find deal in publish deals message %s", publishCid)
+	}
+
+	if dealIdx >= len(retval.IDs) {
+		return dealID, nil, xerrors.Errorf(
+			"deal index %d out of bounds of deals (len %d) in publish deals message %s",
+			dealIdx, len(retval.IDs), publishCid)
+	}
+
+	return retval.IDs[dealIdx], lookup.TipSetTok, nil
+}
+
+func (mgr *CurrentDealInfoManager) CheckDealEquality(ctx context.Context, tok TipSetToken, p1, p2 market.DealProposal) (bool, error) {
+	p1ClientID, err := mgr.CDAPI.StateLookupID(ctx, p1.Client, tok)
+	if err != nil {
+		return false, err
+	}
+	p2ClientID, err := mgr.CDAPI.StateLookupID(ctx, p2.Client, tok)
+	if err != nil {
+		return false, err
+	}
+	return p1.PieceCID.Equals(p2.PieceCID) &&
+		p1.PieceSize == p2.PieceSize &&
+		p1.VerifiedDeal == p2.VerifiedDeal &&
+		p1.Label == p2.Label &&
+		p1.StartEpoch == p2.StartEpoch &&
+		p1.EndEpoch == p2.EndEpoch &&
+		p1.StoragePricePerEpoch.Equals(p2.StoragePricePerEpoch) &&
+		p1.ProviderCollateral.Equals(p2.ProviderCollateral) &&
+		p1.ClientCollateral.Equals(p2.ClientCollateral) &&
+		p1.Provider == p2.Provider &&
+		p1ClientID == p2ClientID, nil
+}
+
+type CurrentDealInfoTskAPI interface {
+	ChainGetMessage(ctx context.Context, mc cid.Cid) (*types.Message, error)
+	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error)
+	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*api.MarketDeal, error)
+	StateSearchMsg(context.Context, cid.Cid) (*api.MsgLookup, error)
+}
+
+type CurrentDealInfoAPIAdapter struct {
+	CurrentDealInfoTskAPI
+}
+
+func (c *CurrentDealInfoAPIAdapter) StateLookupID(ctx context.Context, a address.Address, tok TipSetToken) (address.Address, error) {
+	tsk, err := types.TipSetKeyFromBytes(tok)
+	if err != nil {
+		return address.Undef, xerrors.Errorf("failed to unmarshal TipSetToken to TipSetKey: %w", err)
+	}
+
+	return c.CurrentDealInfoTskAPI.StateLookupID(ctx, a, tsk)
+}
+
+func (c *CurrentDealInfoAPIAdapter) StateMarketStorageDeal(ctx context.Context, dealID abi.DealID, tok TipSetToken) (*api.MarketDeal, error) {
+	tsk, err := types.TipSetKeyFromBytes(tok)
+	if err != nil {
+		return nil, xerrors.Errorf("failed to unmarshal TipSetToken to TipSetKey: %w", err)
+	}
+
+	return c.CurrentDealInfoTskAPI.StateMarketStorageDeal(ctx, dealID, tsk)
+}
+
+func (c *CurrentDealInfoAPIAdapter) StateSearchMsg(ctx context.Context, k cid.Cid) (*MsgLookup, error) {
+	wmsg, err := c.CurrentDealInfoTskAPI.StateSearchMsg(ctx, k)
+	if err != nil {
+		return nil, err
+	}
+
+	if wmsg == nil {
+		return nil, nil
+	}
+
+	return &MsgLookup{
+		Receipt: MessageReceipt{
+			ExitCode: wmsg.Receipt.ExitCode,
+			Return:   wmsg.Receipt.Return,
+			GasUsed:  wmsg.Receipt.GasUsed,
+		},
+		TipSetTok: wmsg.TipSet.Bytes(),
+		Height:    wmsg.Height,
+	}, nil
+}
+
+var _ CurrentDealInfoAPI = (*CurrentDealInfoAPIAdapter)(nil)

extern/storage-sealing/currentdealinfo_test.go

@@ -0,0 +1,310 @@
+package sealing
+
+import (
+	"bytes"
+	"errors"
+	"math/rand"
+	"sort"
+	"testing"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/crypto"
+	"github.com/filecoin-project/go-state-types/exitcode"
+	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
+	evtmock "github.com/filecoin-project/lotus/chain/events/state/mock"
+	"github.com/filecoin-project/lotus/chain/types"
+	market2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
+	tutils "github.com/filecoin-project/specs-actors/v2/support/testing"
+	"github.com/ipfs/go-cid"
+	"github.com/stretchr/testify/require"
+)
+
+var errNotFound = errors.New("Could not find")
+
+func TestGetCurrentDealInfo(t *testing.T) {
+	ctx := context.Background()
+	dummyCid, _ := cid.Parse("bafkqaaa")
+	dummyCid2, _ := cid.Parse("bafkqaab")
+	zeroDealID := abi.DealID(0)
+	earlierDealID := abi.DealID(9)
+	successDealID := abi.DealID(10)
+	proposal := market.DealProposal{
+		PieceCID:             dummyCid,
+		PieceSize:            abi.PaddedPieceSize(100),
+		Client:               tutils.NewActorAddr(t, "client"),
+		Provider:             tutils.NewActorAddr(t, "provider"),
+		StoragePricePerEpoch: abi.NewTokenAmount(1),
+		ProviderCollateral:   abi.NewTokenAmount(1),
+		ClientCollateral:     abi.NewTokenAmount(1),
+		Label:                "success",
+	}
+	otherProposal := market.DealProposal{
+		PieceCID:             dummyCid2,
+		PieceSize:            abi.PaddedPieceSize(100),
+		Client:               tutils.NewActorAddr(t, "client"),
+		Provider:             tutils.NewActorAddr(t, "provider"),
+		StoragePricePerEpoch: abi.NewTokenAmount(1),
+		ProviderCollateral:   abi.NewTokenAmount(1),
+		ClientCollateral:     abi.NewTokenAmount(1),
+		Label:                "other",
+	}
+	successDeal := &api.MarketDeal{
+		Proposal: proposal,
+		State: market.DealState{
+			SectorStartEpoch: 1,
+			LastUpdatedEpoch: 2,
+		},
+	}
+	earlierDeal := &api.MarketDeal{
+		Proposal: otherProposal,
+		State: market.DealState{
+			SectorStartEpoch: 1,
+			LastUpdatedEpoch: 2,
+		},
+	}
+
+	type testCaseData struct {
+		searchMessageLookup *MsgLookup
+		searchMessageErr    error
+		marketDeals         map[abi.DealID]*api.MarketDeal
+		publishCid          cid.Cid
+		targetProposal      *market.DealProposal
+		expectedDealID      abi.DealID
+		expectedMarketDeal  *api.MarketDeal
+		expectedError       error
+	}
+	testCases := map[string]testCaseData{
+		"deal lookup succeeds": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{successDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				successDealID: successDeal,
+			},
+			targetProposal:     &proposal,
+			expectedDealID:     successDealID,
+			expectedMarketDeal: successDeal,
+		},
+		"deal lookup succeeds two return values": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{earlierDealID, successDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				earlierDealID: earlierDeal,
+				successDealID: successDeal,
+			},
+			targetProposal:     &proposal,
+			expectedDealID:     successDealID,
+			expectedMarketDeal: successDeal,
+		},
+		"deal lookup fails proposal mis-match": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{earlierDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				earlierDealID: earlierDeal,
+			},
+			targetProposal: &proposal,
+			expectedDealID: zeroDealID,
+			expectedError:  xerrors.Errorf("could not find deal in publish deals message %s", dummyCid),
+		},
+		"deal lookup fails mismatch count of deals and return values": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{earlierDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				earlierDealID: earlierDeal,
+				successDealID: successDeal,
+			},
+			targetProposal: &proposal,
+			expectedDealID: zeroDealID,
+			expectedError:  xerrors.Errorf("deal index 1 out of bounds of deals (len 1) in publish deals message %s", dummyCid),
+		},
+		"deal lookup succeeds, target proposal nil, single deal in message": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{successDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				successDealID: successDeal,
+			},
+			targetProposal:     nil,
+			expectedDealID:     successDealID,
+			expectedMarketDeal: successDeal,
+		},
+		"deal lookup fails, multiple deals in return value but target proposal nil": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   makePublishDealsReturnBytes(t, []abi.DealID{earlierDealID, successDealID}),
+				},
+			},
+			marketDeals: map[abi.DealID]*api.MarketDeal{
+				earlierDealID: earlierDeal,
+				successDealID: successDeal,
+			},
+			targetProposal: nil,
+			expectedDealID: zeroDealID,
+			expectedError:  xerrors.Errorf("getting deal ID from publish deal message %s: no deal proposal supplied but message return value has more than one deal (2 deals)", dummyCid),
+		},
+		"search message fails": {
+			publishCid:       dummyCid,
+			searchMessageErr: errors.New("something went wrong"),
+			targetProposal:   &proposal,
+			expectedDealID:   zeroDealID,
+			expectedError:    xerrors.Errorf("looking for publish deal message %s: search msg failed: something went wrong", dummyCid),
+		},
+		"return code not ok": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.ErrIllegalState,
+				},
+			},
+			targetProposal: &proposal,
+			expectedDealID: zeroDealID,
+			expectedError:  xerrors.Errorf("looking for publish deal message %s: non-ok exit code: %s", dummyCid, exitcode.ErrIllegalState),
+		},
+		"unable to unmarshal params": {
+			publishCid: dummyCid,
+			searchMessageLookup: &MsgLookup{
+				Receipt: MessageReceipt{
+					ExitCode: exitcode.Ok,
+					Return:   []byte("applesauce"),
+				},
+			},
+			targetProposal: &proposal,
+			expectedDealID: zeroDealID,
+			expectedError:  xerrors.Errorf("looking for publish deal message %s: unmarshalling message return: cbor input should be of type array", dummyCid),
+		},
+	}
+	runTestCase := func(testCase string, data testCaseData) {
+		t.Run(testCase, func(t *testing.T) {
+			ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
+			defer cancel()
+			ts, err := evtmock.MockTipset(address.TestAddress, rand.Uint64())
+			require.NoError(t, err)
+			marketDeals := make(map[marketDealKey]*api.MarketDeal)
+			for dealID, deal := range data.marketDeals {
+				marketDeals[marketDealKey{dealID, ts.Key()}] = deal
+			}
+			mockApi := &CurrentDealInfoMockAPI{
+				SearchMessageLookup: data.searchMessageLookup,
+				SearchMessageErr:    data.searchMessageErr,
+				MarketDeals:         marketDeals,
+			}
+			dealInfoMgr := CurrentDealInfoManager{mockApi}
+
+			res, err := dealInfoMgr.GetCurrentDealInfo(ctx, ts.Key().Bytes(), data.targetProposal, data.publishCid)
+			require.Equal(t, data.expectedDealID, res.DealID)
+			require.Equal(t, data.expectedMarketDeal, res.MarketDeal)
+			if data.expectedError == nil {
+				require.NoError(t, err)
+			} else {
+				require.EqualError(t, err, data.expectedError.Error())
+			}
+		})
+	}
+	for testCase, data := range testCases {
+		runTestCase(testCase, data)
+	}
+}
+
+type marketDealKey struct {
+	abi.DealID
+	types.TipSetKey
+}
+
+type CurrentDealInfoMockAPI struct {
+	SearchMessageLookup *MsgLookup
+	SearchMessageErr    error
+
+	MarketDeals map[marketDealKey]*api.MarketDeal
+}
+
+func (mapi *CurrentDealInfoMockAPI) ChainGetMessage(ctx context.Context, c cid.Cid) (*types.Message, error) {
+	var dealIDs []abi.DealID
+	var deals []market2.ClientDealProposal
+	for k, dl := range mapi.MarketDeals {
+		dealIDs = append(dealIDs, k.DealID)
+		deals = append(deals, market2.ClientDealProposal{
+			Proposal: market2.DealProposal(dl.Proposal),
+			ClientSignature: crypto.Signature{
+				Data: []byte("foo bar cat dog"),
+				Type: crypto.SigTypeBLS,
+			},
+		})
+	}
+	sort.SliceStable(deals, func(i, j int) bool {
+		return dealIDs[i] < dealIDs[j]
+	})
+	buf := new(bytes.Buffer)
+	params := market2.PublishStorageDealsParams{Deals: deals}
+	err := params.MarshalCBOR(buf)
+	if err != nil {
+		panic(err)
+	}
+	return &types.Message{
+		Params: buf.Bytes(),
+	}, nil
+}
+
+func (mapi *CurrentDealInfoMockAPI) StateLookupID(ctx context.Context, addr address.Address, token TipSetToken) (address.Address, error) {
+	return addr, nil
+}
+
+func (mapi *CurrentDealInfoMockAPI) StateMarketStorageDeal(ctx context.Context, dealID abi.DealID, tok TipSetToken) (*api.MarketDeal, error) {
+	tsk, err := types.TipSetKeyFromBytes(tok)
+	if err != nil {
+		return nil, err
+	}
+	deal, ok := mapi.MarketDeals[marketDealKey{dealID, tsk}]
+	if !ok {
+		return nil, errNotFound
+	}
+	return deal, nil
+}
+
+func (mapi *CurrentDealInfoMockAPI) StateSearchMsg(ctx context.Context, c cid.Cid) (*MsgLookup, error) {
+	if mapi.SearchMessageLookup == nil {
+		return mapi.SearchMessageLookup, mapi.SearchMessageErr
+	}
+
+	return mapi.SearchMessageLookup, mapi.SearchMessageErr
+}
+
+func makePublishDealsReturnBytes(t *testing.T, dealIDs []abi.DealID) []byte {
+	buf := new(bytes.Buffer)
+	dealsReturn := market.PublishStorageDealsReturn{
+		IDs: dealIDs,
+	}
+	err := dealsReturn.MarshalCBOR(buf)
+	require.NoError(t, err)
+	return buf.Bytes()
+}

extern/storage-sealing/sealiface/config.go

@@ -15,4 +15,6 @@ type Config struct {
 	MaxSealingSectorsForDeals uint64
 
 	WaitDealsDelay time.Duration
+
+	AlwaysKeepUnsealedCopy bool
 }

extern/storage-sealing/sealing.go

@@ -24,6 +24,7 @@ import (
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/types"
 	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
 )
@@ -50,18 +51,21 @@ type SealingAPI interface {
 	StateSectorPreCommitInfo(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok TipSetToken) (*miner.SectorPreCommitOnChainInfo, error)
 	StateSectorGetInfo(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok TipSetToken) (*miner.SectorOnChainInfo, error)
 	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok TipSetToken) (*SectorLocation, error)
+	StateLookupID(context.Context, address.Address, TipSetToken) (address.Address, error)
 	StateMinerSectorSize(context.Context, address.Address, TipSetToken) (abi.SectorSize, error)
 	StateMinerWorkerAddress(ctx context.Context, maddr address.Address, tok TipSetToken) (address.Address, error)
 	StateMinerPreCommitDepositForPower(context.Context, address.Address, miner.SectorPreCommitInfo, TipSetToken) (big.Int, error)
 	StateMinerInitialPledgeCollateral(context.Context, address.Address, miner.SectorPreCommitInfo, TipSetToken) (big.Int, error)
 	StateMinerInfo(context.Context, address.Address, TipSetToken) (miner.MinerInfo, error)
 	StateMinerSectorAllocated(context.Context, address.Address, abi.SectorNumber, TipSetToken) (bool, error)
-	StateMarketStorageDeal(context.Context, abi.DealID, TipSetToken) (market.DealProposal, error)
+	StateMarketStorageDeal(context.Context, abi.DealID, TipSetToken) (*api.MarketDeal, error)
+	StateMarketStorageDealProposal(context.Context, abi.DealID, TipSetToken) (market.DealProposal, error)
 	StateNetworkVersion(ctx context.Context, tok TipSetToken) (network.Version, error)
 	StateMinerProvingDeadline(context.Context, address.Address, TipSetToken) (*dline.Info, error)
 	StateMinerPartitions(ctx context.Context, m address.Address, dlIdx uint64, tok TipSetToken) ([]api.Partition, error)
 	SendMsg(ctx context.Context, from, to address.Address, method abi.MethodNum, value, maxFee abi.TokenAmount, params []byte) (cid.Cid, error)
 	ChainHead(ctx context.Context) (TipSetToken, abi.ChainEpoch, error)
+	ChainGetMessage(ctx context.Context, mc cid.Cid) (*types.Message, error)
 	ChainGetRandomnessFromBeacon(ctx context.Context, tok TipSetToken, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)
 	ChainGetRandomnessFromTickets(ctx context.Context, tok TipSetToken, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
@@ -101,6 +105,7 @@ type Sealing struct {
 	terminator *TerminateBatcher
 
 	getConfig GetSealingConfigFunc
+	dealInfo  *CurrentDealInfoManager
 }
 
 type FeeConfig struct {
@@ -149,6 +154,7 @@ func New(api SealingAPI, fc FeeConfig, events Events, maddr address.Address, ds
 		terminator: NewTerminationBatcher(context.TODO(), maddr, api, as, fc),
 
 		getConfig: gc,
+		dealInfo:  &CurrentDealInfoManager{api},
 
 		stats: SectorStats{
 			bySector: map[abi.SectorID]statSectorState{},
@@ -217,7 +223,12 @@ func (m *Sealing) currentSealProof(ctx context.Context) (abi.RegisteredSealProof
 		return 0, err
 	}
 
-	return mi.SealProofType, nil
+	ver, err := m.api.StateNetworkVersion(ctx, nil)
+	if err != nil {
+		return 0, err
+	}
+
+	return miner.PreferredSealProofTypeFromWindowPoStType(ver, mi.WindowPoStProofType)
 }
 
 func (m *Sealing) minerSector(spt abi.RegisteredSealProof, num abi.SectorNumber) storage.SectorRef {