Hardware requirements checks

cmd/assessment/main.go

@@ -12,7 +12,7 @@ import (
 	"github.com/multiversx/mx-chain-core-go/core"
 	"github.com/multiversx/mx-chain-go/cmd/assessment/benchmarks"
 	"github.com/multiversx/mx-chain-go/cmd/assessment/benchmarks/factory"
-	"github.com/multiversx/mx-chain-go/cmd/assessment/hostParameters"
+	"github.com/multiversx/mx-chain-go/common/hostParameters"
 	logger "github.com/multiversx/mx-chain-logger-go"
 	"github.com/urfave/cli"
 )

cmd/node/config/config.toml

@@ -35,10 +35,13 @@
     # SyncProcessTimeInMillis is the value in milliseconds used when processing blocks while synchronizing blocks
     SyncProcessTimeInMillis = 12000
 
-   # SetGuardianEpochsDelay represents the delay in epochs between the execution time of the SetGuardian transaction and
-   # the activation of the configured guardian.
-   # Make sure that this is greater than the unbonding period!
-   SetGuardianEpochsDelay = 2 # TODO: for mainnet should be 20, 2 is just for testing
+    # SetGuardianEpochsDelay represents the delay in epochs between the execution time of the SetGuardian transaction and
+    # the activation of the configured guardian.
+    # Make sure that this is greater than the unbonding period!
+    SetGuardianEpochsDelay = 2 # TODO: for mainnet should be 20, 2 is just for testing
+
+[HardwareRequirements]
+    CPUFlags = ["sse4_1", "sse4_2"]
 
 [Versions]
     DefaultVersion = "default"

cmd/node/main.go

@@ -10,6 +10,7 @@ import (
 	"github.com/multiversx/mx-chain-core-go/core/check"
 	"github.com/multiversx/mx-chain-go/cmd/node/factory"
 	"github.com/multiversx/mx-chain-go/common"
+	"github.com/multiversx/mx-chain-go/common/hostParameters"
 	"github.com/multiversx/mx-chain-go/config"
 	"github.com/multiversx/mx-chain-go/config/overridableConfig"
 	"github.com/multiversx/mx-chain-go/node"
@@ -129,6 +130,11 @@ func startNodeRunner(c *cli.Context, log logger.Logger, baseVersion string, vers
 	cfgs.FlagsConfig.BaseVersion = baseVersion
 	cfgs.FlagsConfig.Version = version
 
+	err = checkHardwareRequirements(cfgs.GeneralConfig.HardwareRequirements)
+	if err != nil {
+		return fmt.Errorf("Hardware Requirements checks failed: %s", err.Error())
+	}
+
 	nodeRunner, errRunner := node.NewNodeRunner(cfgs)
 	if errRunner != nil {
 		return errRunner
@@ -301,3 +307,25 @@ func attachFileLogger(log logger.Logger, flagsConfig *config.ContextFlagsConfig)
 
 	return fileLogging, nil
 }
+
+func checkHardwareRequirements(cfg config.HardwareRequirementsConfig) error {
+	hpg := hostParameters.NewHostParameterGetter("")
+	hostInfo := hpg.GetHostInfo()
+
+	for _, cpuFlag := range cfg.CPUFlags {
+		if !contains(hostInfo.CPUFlags, cpuFlag) {
+			return fmt.Errorf("CPU Flag %s not available", cpuFlag)
+		}
+	}
+
+	return nil
+}
+
+func contains(list []string, s string) bool {
+	for _, item := range list {
+		if item == s {
+			return true
+		}
+	}
+	return false
+}

config/config.go

@@ -190,15 +190,16 @@ type Config struct {
 	PublicKeyPIDSignature CacheConfig
 	PeerHonesty           CacheConfig
 
-	Antiflood           AntifloodConfig
-	WebServerAntiflood  WebServerAntifloodConfig
-	ResourceStats       ResourceStatsConfig
-	HeartbeatV2         HeartbeatV2Config
-	ValidatorStatistics ValidatorStatisticsConfig
-	GeneralSettings     GeneralSettingsConfig
-	Consensus           ConsensusConfig
-	StoragePruning      StoragePruningConfig
-	LogsAndEvents       LogsAndEventsConfig
+	Antiflood            AntifloodConfig
+	WebServerAntiflood   WebServerAntifloodConfig
+	ResourceStats        ResourceStatsConfig
+	HeartbeatV2          HeartbeatV2Config
+	ValidatorStatistics  ValidatorStatisticsConfig
+	GeneralSettings      GeneralSettingsConfig
+	Consensus            ConsensusConfig
+	StoragePruning       StoragePruningConfig
+	LogsAndEvents        LogsAndEventsConfig
+	HardwareRequirements HardwareRequirementsConfig
 
 	NTPConfig               NTPConfig
 	HeadersPoolConfig       HeadersPoolConfig
@@ -285,6 +286,11 @@ type GeneralSettingsConfig struct {
 	SetGuardianEpochsDelay               uint32
 }
 
+// HardwareRequirementsConfig will hold the hardware requirements config
+type HardwareRequirementsConfig struct {
+	CPUFlags []string
+}
+
 // FacadeConfig will hold different configuration option that will be passed to the node facade
 type FacadeConfig struct {
 	RestApiInterface string