Merge pull request #6903 from onflow/janez/execution-parameters-from-different-account

Move execution parameter to separate account

Author: janezpodhostnik

fvm/environment/derived_data_invalidator_test.go

@@ -244,7 +244,7 @@ func TestMeterParamOverridesUpdated(t *testing.T) {
 
 	snapshotTree := snapshot.NewSnapshotTree(nil)
 
-	ctx := fvm.NewContext(fvm.WithChain(flow.Testnet.Chain()))
+	ctx := fvm.NewContext(fvm.WithChain(flow.Emulator.Chain()))
 
 	vm := fvm.NewVirtualMachine()
 	executionSnapshot, _, err := vm.Run(

fvm/executionParameters.go

@@ -19,6 +19,7 @@ import (
 	"github.com/onflow/flow-go/fvm/storage"
 	"github.com/onflow/flow-go/fvm/storage/derived"
 	"github.com/onflow/flow-go/fvm/storage/state"
+	"github.com/onflow/flow-go/fvm/systemcontracts"
 )
 
 func ProcedureStateParameters(
@@ -143,10 +144,14 @@ func (computer ExecutionParametersComputer) getExecutionParameters() (
 	derived.StateExecutionParameters,
 	error,
 ) {
-	// Check that the service account exists because all the settings are
-	// stored in it
-	serviceAddress := computer.ctx.Chain.ServiceAddress()
-	service := common.Address(serviceAddress)
+	sc := systemcontracts.SystemContractsForChain(computer.ctx.Chain.ChainID())
+
+	// The execution parameters are stored in the ExecutionParametersAccount. This is
+	// just the service account for all networks except mainnet and testnet.
+	// For mainnet and testnet, the execution parameters are stored in a separate
+	// account, so that they are separated from the frequently changing data on the
+	// service account.
+	service := common.Address(sc.ExecutionParametersAccount.Address)
 
 	env := environment.NewScriptEnv(
 		context.Background(),

fvm/fvm_test.go

@@ -1083,7 +1083,11 @@ func TestTransactionFeeDeduction(t *testing.T) {
 
 func TestSettingExecutionWeights(t *testing.T) {
 
+	// change the chain so that the metering settings are read from the service account
+	chain := flow.Emulator.Chain()
+
 	t.Run("transaction should fail with high weights", newVMTest().withBootstrapProcedureOptions(
+
 		fvm.WithMinimumStorageReservation(fvm.DefaultMinimumStorageReservation),
 		fvm.WithAccountCreationFee(fvm.DefaultAccountCreationFee),
 		fvm.WithStorageMBPerFLOW(fvm.DefaultStorageMBPerFLOW),
@@ -1092,6 +1096,8 @@ func TestSettingExecutionWeights(t *testing.T) {
 				common.ComputationKindLoop: 100_000 << meter.MeterExecutionInternalPrecisionBytes,
 			},
 		),
+	).withContextOptions(
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 
@@ -1140,6 +1146,7 @@ func TestSettingExecutionWeights(t *testing.T) {
 		),
 	).withContextOptions(
 		fvm.WithMemoryLimit(10_000_000_000),
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			// Create an account private key.
@@ -1190,6 +1197,7 @@ func TestSettingExecutionWeights(t *testing.T) {
 		),
 	).withContextOptions(
 		fvm.WithMemoryLimit(10_000_000_000),
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 
@@ -1234,6 +1242,8 @@ func TestSettingExecutionWeights(t *testing.T) {
 		fvm.WithExecutionMemoryWeights(
 			memoryWeights,
 		),
+	).withContextOptions(
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			privateKeys, err := testutil.GenerateAccountPrivateKeys(1)
@@ -1301,6 +1311,8 @@ func TestSettingExecutionWeights(t *testing.T) {
 				environment.ComputationKindCreateAccount: (fvm.DefaultComputationLimit + 1) << meter.MeterExecutionInternalPrecisionBytes,
 			},
 		),
+	).withContextOptions(
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			txBody := flow.NewTransactionBody().
@@ -1337,6 +1349,8 @@ func TestSettingExecutionWeights(t *testing.T) {
 				environment.ComputationKindCreateAccount: 100_000_000 << meter.MeterExecutionInternalPrecisionBytes,
 			},
 		),
+	).withContextOptions(
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 
@@ -1374,6 +1388,8 @@ func TestSettingExecutionWeights(t *testing.T) {
 				environment.ComputationKindCreateAccount: 100_000_000 << meter.MeterExecutionInternalPrecisionBytes,
 			},
 		),
+	).withContextOptions(
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			txBody := flow.NewTransactionBody().
@@ -1417,6 +1433,7 @@ func TestSettingExecutionWeights(t *testing.T) {
 		fvm.WithAccountStorageLimit(true),
 		fvm.WithTransactionFeesEnabled(true),
 		fvm.WithMemoryLimit(math.MaxUint64),
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			// Use the maximum amount of computation so that the transaction still passes.
@@ -1510,6 +1527,7 @@ func TestSettingExecutionWeights(t *testing.T) {
 		fvm.WithAccountStorageLimit(true),
 		fvm.WithTransactionFeesEnabled(true),
 		fvm.WithMemoryLimit(math.MaxUint64),
+		fvm.WithChain(chain),
 	).run(
 		func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 			// Create an account private key.
@@ -2165,6 +2183,8 @@ func TestScriptExecutionLimit(t *testing.T) {
 
 	t.Parallel()
 
+	chain := flow.Emulator.Chain()
+
 	script := fvm.Script([]byte(`
 		access(all) fun main() {
 			var s: Int256 = 1024102410241024
@@ -2206,6 +2226,7 @@ func TestScriptExecutionLimit(t *testing.T) {
 			fvm.WithTransactionFeesEnabled(true),
 			fvm.WithAccountStorageLimit(true),
 			fvm.WithComputationLimit(10000),
+			fvm.WithChain(chain),
 		).run(
 			func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 				scriptCtx := fvm.NewContextFromParent(ctx)
@@ -2228,6 +2249,7 @@ func TestScriptExecutionLimit(t *testing.T) {
 			fvm.WithTransactionFeesEnabled(true),
 			fvm.WithAccountStorageLimit(true),
 			fvm.WithComputationLimit(20000),
+			fvm.WithChain(chain),
 		).run(
 			func(t *testing.T, vm fvm.VM, chain flow.Chain, ctx fvm.Context, snapshotTree snapshot.SnapshotTree) {
 				scriptCtx := fvm.NewContextFromParent(ctx)

fvm/systemcontracts/system_contracts.go

@@ -47,6 +47,10 @@ const (
 
 	// AccountNameEVMStorage is not a contract, but a special account that is used to store EVM state
 	AccountNameEVMStorage = "EVMStorageAccount"
+	// AccountNameExecutionParametersAccount is not a contract, but a special account that is used to store execution parameters
+	// This is generally just the service account. For mainnet and testnet, it is a separate account,
+	// in order to separate it away from the frequently changing data on the service account.
+	AccountNameExecutionParametersAccount = "ExecutionParametersAccount"
 
 	// Unqualified names of service events (not including address prefix or contract name)
 
@@ -100,6 +104,11 @@ var (
 	evmStorageAddressTestnet = flow.HexToAddress("1a54ed2be7552821")
 	// evmStorageAddressMainnet is the address of the EVM state storage contract on Mainnet
 	evmStorageAddressMainnet = flow.HexToAddress("d421a63faae318f9")
+
+	// executionParametersAddressTestnet is the address of the Execution Parameters contract on Testnet
+	executionParametersAddressTestnet = flow.HexToAddress("6997a2f2cf57b73a")
+	// executionParametersAddressMainnet is the address of the Execution Parameters contract on Mainnet
+	executionParametersAddressMainnet = flow.HexToAddress("f426ff57ee8f6110")
 )
 
 // SystemContract represents a system contract on a particular chain.
@@ -149,10 +158,11 @@ type SystemContracts struct {
 	DKG            SystemContract
 
 	// service account related contracts
-	FlowServiceAccount  SystemContract
-	NodeVersionBeacon   SystemContract
-	RandomBeaconHistory SystemContract
-	FlowStorageFees     SystemContract
+	FlowServiceAccount         SystemContract
+	NodeVersionBeacon          SystemContract
+	RandomBeaconHistory        SystemContract
+	FlowStorageFees            SystemContract
+	ExecutionParametersAccount SystemContract
 
 	// token related contracts
 	FlowFees                   SystemContract
@@ -344,16 +354,28 @@ func init() {
 		}
 	}
 
+	executionParametersAccountFunc := func(chain flow.ChainID) flow.Address {
+		switch chain {
+		case flow.Mainnet:
+			return executionParametersAddressMainnet
+		case flow.Testnet:
+			return executionParametersAddressTestnet
+		default:
+			return serviceAddressFunc(chain)
+		}
+	}
+
 	contractAddressFunc = map[string]func(id flow.ChainID) flow.Address{
 		ContractNameIDTableStaking: epochAddressFunc,
 		ContractNameEpoch:          epochAddressFunc,
 		ContractNameClusterQC:      epochAddressFunc,
 		ContractNameDKG:            epochAddressFunc,
 
-		ContractNameNodeVersionBeacon:   serviceAddressFunc,
-		ContractNameRandomBeaconHistory: serviceAddressFunc,
-		ContractNameServiceAccount:      serviceAddressFunc,
-		ContractNameStorageFees:         serviceAddressFunc,
+		ContractNameNodeVersionBeacon:         serviceAddressFunc,
+		ContractNameRandomBeaconHistory:       serviceAddressFunc,
+		ContractNameServiceAccount:            serviceAddressFunc,
+		ContractNameStorageFees:               serviceAddressFunc,
+		AccountNameExecutionParametersAccount: executionParametersAccountFunc,
 
 		ContractNameFlowFees:                   nthAddressFunc(FlowFeesAccountIndex),
 		ContractNameFungibleToken:              nthAddressFunc(FungibleTokenAccountIndex),
@@ -406,10 +428,11 @@ func init() {
 			ClusterQC:      addressOfContract(ContractNameClusterQC),
 			DKG:            addressOfContract(ContractNameDKG),
 
-			FlowServiceAccount:  addressOfContract(ContractNameServiceAccount),
-			NodeVersionBeacon:   addressOfContract(ContractNameNodeVersionBeacon),
-			RandomBeaconHistory: addressOfContract(ContractNameRandomBeaconHistory),
-			FlowStorageFees:     addressOfContract(ContractNameStorageFees),
+			FlowServiceAccount:         addressOfContract(ContractNameServiceAccount),
+			NodeVersionBeacon:          addressOfContract(ContractNameNodeVersionBeacon),
+			RandomBeaconHistory:        addressOfContract(ContractNameRandomBeaconHistory),
+			FlowStorageFees:            addressOfContract(ContractNameStorageFees),
+			ExecutionParametersAccount: addressOfContract(AccountNameExecutionParametersAccount),
 
 			FlowFees:                   addressOfContract(ContractNameFlowFees),
 			FlowToken:                  addressOfContract(ContractNameFlowToken),