vendor: update govmm changes

To include vm factory related commits. Full list:
54caf78 (mine/templating, templating) qmp: add hotplug memory
e66a9b4 qemu: add appendMemoryKnobs helper
8aeca15 qmp: add migrate set arguments
a03d496 qmp: add set migration capabilities
0ace417 qemu: allow to set migration incoming
723bc5f qemu: allow to create a stopped guest
283d7df qemu: add file backed memory device support

Signed-off-by: Peng Tao <bergwolf@gmail.com>

Gopkg.lock

@@ -91,7 +91,7 @@
 [[projects]]
   name = "github.com/intel/govmm"
   packages = ["qemu"]
-  revision = "9cf8ce6c6dda19d4a6d529e73714e231f6156820"
+  revision = "ff2401825e0930811919c86c36d64b113aa00083"
 
 [[projects]]
   name = "github.com/kata-containers/agent"
@@ -263,6 +263,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "a8e90901b945488c3b660e20c076fce3345dba96b4ec15e7ca00b8a06baa16a3"
+  inputs-digest = "4d57a771261fe6b0e1f86bf2de82f8c39cc0047170f4277754972e2feab4796f"
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -56,7 +56,7 @@
 
 [[constraint]]
   name = "github.com/intel/govmm"
-  revision = "9cf8ce6c6dda19d4a6d529e73714e231f6156820"
+  revision = "ff2401825e0930811919c86c36d64b113aa00083"
 
 [[constraint]]
   name = "github.com/kata-containers/agent"

vendor/github.com/docker/go-units/duration.go

@@ -0,0 +1,35 @@
+// Package units provides helper function to parse and print size and time units
+// in human-readable format.
+package units
+
+import (
+	"fmt"
+	"time"
+)
+
+// HumanDuration returns a human-readable approximation of a duration
+// (eg. "About a minute", "4 hours ago", etc.).
+func HumanDuration(d time.Duration) string {
+	if seconds := int(d.Seconds()); seconds < 1 {
+		return "Less than a second"
+	} else if seconds == 1 {
+		return "1 second"
+	} else if seconds < 60 {
+		return fmt.Sprintf("%d seconds", seconds)
+	} else if minutes := int(d.Minutes()); minutes == 1 {
+		return "About a minute"
+	} else if minutes < 46 {
+		return fmt.Sprintf("%d minutes", minutes)
+	} else if hours := int(d.Hours() + 0.5); hours == 1 {
+		return "About an hour"
+	} else if hours < 48 {
+		return fmt.Sprintf("%d hours", hours)
+	} else if hours < 24*7*2 {
+		return fmt.Sprintf("%d days", hours/24)
+	} else if hours < 24*30*2 {
+		return fmt.Sprintf("%d weeks", hours/24/7)
+	} else if hours < 24*365*2 {
+		return fmt.Sprintf("%d months", hours/24/30)
+	}
+	return fmt.Sprintf("%d years", int(d.Hours())/24/365)
+}

vendor/github.com/docker/go-units/ulimit.go

@@ -0,0 +1,118 @@
+package units
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Ulimit is a human friendly version of Rlimit.
+type Ulimit struct {
+	Name string
+	Hard int64
+	Soft int64
+}
+
+// Rlimit specifies the resource limits, such as max open files.
+type Rlimit struct {
+	Type int    `json:"type,omitempty"`
+	Hard uint64 `json:"hard,omitempty"`
+	Soft uint64 `json:"soft,omitempty"`
+}
+
+const (
+	// magic numbers for making the syscall
+	// some of these are defined in the syscall package, but not all.
+	// Also since Windows client doesn't get access to the syscall package, need to
+	//	define these here
+	rlimitAs         = 9
+	rlimitCore       = 4
+	rlimitCPU        = 0
+	rlimitData       = 2
+	rlimitFsize      = 1
+	rlimitLocks      = 10
+	rlimitMemlock    = 8
+	rlimitMsgqueue   = 12
+	rlimitNice       = 13
+	rlimitNofile     = 7
+	rlimitNproc      = 6
+	rlimitRss        = 5
+	rlimitRtprio     = 14
+	rlimitRttime     = 15
+	rlimitSigpending = 11
+	rlimitStack      = 3
+)
+
+var ulimitNameMapping = map[string]int{
+	//"as":         rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container.
+	"core":       rlimitCore,
+	"cpu":        rlimitCPU,
+	"data":       rlimitData,
+	"fsize":      rlimitFsize,
+	"locks":      rlimitLocks,
+	"memlock":    rlimitMemlock,
+	"msgqueue":   rlimitMsgqueue,
+	"nice":       rlimitNice,
+	"nofile":     rlimitNofile,
+	"nproc":      rlimitNproc,
+	"rss":        rlimitRss,
+	"rtprio":     rlimitRtprio,
+	"rttime":     rlimitRttime,
+	"sigpending": rlimitSigpending,
+	"stack":      rlimitStack,
+}
+
+// ParseUlimit parses and returns a Ulimit from the specified string.
+func ParseUlimit(val string) (*Ulimit, error) {
+	parts := strings.SplitN(val, "=", 2)
+	if len(parts) != 2 {
+		return nil, fmt.Errorf("invalid ulimit argument: %s", val)
+	}
+
+	if _, exists := ulimitNameMapping[parts[0]]; !exists {
+		return nil, fmt.Errorf("invalid ulimit type: %s", parts[0])
+	}
+
+	var (
+		soft int64
+		hard = &soft // default to soft in case no hard was set
+		temp int64
+		err  error
+	)
+	switch limitVals := strings.Split(parts[1], ":"); len(limitVals) {
+	case 2:
+		temp, err = strconv.ParseInt(limitVals[1], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+		hard = &temp
+		fallthrough
+	case 1:
+		soft, err = strconv.ParseInt(limitVals[0], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+	default:
+		return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1])
+	}
+
+	if soft > *hard {
+		return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard)
+	}
+
+	return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil
+}
+
+// GetRlimit returns the RLimit corresponding to Ulimit.
+func (u *Ulimit) GetRlimit() (*Rlimit, error) {
+	t, exists := ulimitNameMapping[u.Name]
+	if !exists {
+		return nil, fmt.Errorf("invalid ulimit name %s", u.Name)
+	}
+
+	return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil
+}
+
+func (u *Ulimit) String() string {
+	return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard)
+}

vendor/github.com/intel/govmm/qemu/qemu.go

@@ -1126,6 +1126,10 @@ type Memory struct {
 	// MaxMem is the maximum amount of memory that can be made available
 	// to the guest through e.g. hot pluggable memory.
 	MaxMem string
+
+	// Path is the file path of the memory device. It points to a local
+	// file path used by FileBackedMem.
+	Path string
 }
 
 // Kernel is the guest kernel configuration structure.
@@ -1167,10 +1171,20 @@ type Knobs struct {
 	// MemPrealloc will allocate all the RAM upfront
 	MemPrealloc bool
 
+	// FileBackedMem requires Memory.Size and Memory.Path of the VM to
+	// be set.
+	FileBackedMem bool
+
+	// FileBackedMemShared will set the FileBackedMem device as shared.
+	FileBackedMemShared bool
+
 	// Mlock will control locking of memory
 	// Only active when Realtime is set to true
 	Mlock bool
 
+	// Stopped will not start guest CPU at startup
+	Stopped bool
+
 	// Realtime will enable realtime QEMU
 	Realtime bool
 }
@@ -1180,6 +1194,24 @@ type IOThread struct {
 	ID string
 }
 
+const (
+	// MigrationFD is the migration incoming type based on open file descriptor.
+	// Skip default 0 so that it must be set on purpose.
+	MigrationFD = 1
+	// MigrationExec is the migration incoming type based on commands.
+	MigrationExec = 2
+)
+
+// Incoming controls migration source preparation
+type Incoming struct {
+	// Possible values are MigrationFD, MigrationExec
+	MigrationType int
+	// Only valid if MigrationType == MigrationFD
+	FD *os.File
+	// Only valid if MigrationType == MigrationExec
+	Exec string
+}
+
 // Config is the qemu configuration structure.
 // It allows for passing custom settings and parameters to the qemu API.
 type Config struct {
@@ -1231,6 +1263,9 @@ type Config struct {
 	// Bios is the -bios parameter
 	Bios string
 
+	// Incoming controls migration source preparation
+	Incoming Incoming
+
 	// fds is a list of open file descriptors to be passed to the spawned qemu process
 	fds []*os.File
 
@@ -1433,23 +1468,7 @@ func (config *Config) appendKernel() {
 	}
 }
 
-func (config *Config) appendKnobs() {
+func (config *Config) appendMemoryKnobs() {
-	if config.Knobs.NoUserConfig == true {
-		config.qemuParams = append(config.qemuParams, "-no-user-config")
-	}
-
-	if config.Knobs.NoDefaults == true {
-		config.qemuParams = append(config.qemuParams, "-nodefaults")
-	}
-
-	if config.Knobs.NoGraphic == true {
-		config.qemuParams = append(config.qemuParams, "-nographic")
-	}
-
-	if config.Knobs.Daemonize == true {
-		config.qemuParams = append(config.qemuParams, "-daemonize")
-	}
-
 	if config.Knobs.HugePages == true {
 		if config.Memory.Size != "" {
 			dimmName := "dimm1"
@@ -1474,7 +1493,42 @@ func (config *Config) appendKnobs() {
 			config.qemuParams = append(config.qemuParams, "-device")
 			config.qemuParams = append(config.qemuParams, deviceMemParam)
 		}
+	} else if config.Knobs.FileBackedMem == true {
+		if config.Memory.Size != "" && config.Memory.Path != "" {
+			dimmName := "dimm1"
+			objMemParam := "memory-backend-file,id=" + dimmName + ",size=" + config.Memory.Size + ",mem-path=" + config.Memory.Path
+			if config.Knobs.FileBackedMemShared == true {
+				objMemParam += ",share=on"
+			}
+			numaMemParam := "node,memdev=" + dimmName
+
+			config.qemuParams = append(config.qemuParams, "-object")
+			config.qemuParams = append(config.qemuParams, objMemParam)
+
+			config.qemuParams = append(config.qemuParams, "-numa")
+			config.qemuParams = append(config.qemuParams, numaMemParam)
+		}
 	}
+}
+
+func (config *Config) appendKnobs() {
+	if config.Knobs.NoUserConfig == true {
+		config.qemuParams = append(config.qemuParams, "-no-user-config")
+	}
+
+	if config.Knobs.NoDefaults == true {
+		config.qemuParams = append(config.qemuParams, "-nodefaults")
+	}
+
+	if config.Knobs.NoGraphic == true {
+		config.qemuParams = append(config.qemuParams, "-nographic")
+	}
+
+	if config.Knobs.Daemonize == true {
+		config.qemuParams = append(config.qemuParams, "-daemonize")
+	}
+
+	config.appendMemoryKnobs()
 
 	if config.Knobs.Realtime == true {
 		config.qemuParams = append(config.qemuParams, "-realtime")
@@ -1495,6 +1549,10 @@ func (config *Config) appendKnobs() {
 			config.qemuParams = append(config.qemuParams, "mlock=off")
 		}
 	}
+
+	if config.Knobs.Stopped == true {
+		config.qemuParams = append(config.qemuParams, "-S")
+	}
 }
 
 func (config *Config) appendBios() {
@@ -1513,6 +1571,20 @@ func (config *Config) appendIOThreads() {
 	}
 }
 
+func (config *Config) appendIncoming() {
+	var uri string
+	switch config.Incoming.MigrationType {
+	case MigrationExec:
+		uri = fmt.Sprintf("exec:%s", config.Incoming.Exec)
+	case MigrationFD:
+		chFDs := config.appendFDs([]*os.File{config.Incoming.FD})
+		uri = fmt.Sprintf("fd:%d", chFDs[0])
+	default:
+		return
+	}
+	config.qemuParams = append(config.qemuParams, "-S", "-incoming", uri)
+}
+
 // LaunchQemu can be used to launch a new qemu instance.
 //
 // The Config parameter contains a set of qemu parameters and settings.
@@ -1537,6 +1609,7 @@ func LaunchQemu(config Config, logger QMPLog) (string, error) {
 	config.appendKernel()
 	config.appendBios()
 	config.appendIOThreads()
+	config.appendIncoming()
 
 	if err := config.appendCPUs(); err != nil {
 		return "", err

vendor/github.com/intel/govmm/qemu/qmp.go

@@ -828,3 +828,56 @@ func (q *QMP) ExecuteQueryHotpluggableCPUs(ctx context.Context) ([]HotpluggableC
 
 	return cpus, nil
 }
+
+// ExecSetMigrationCaps sets migration capabilities
+func (q *QMP) ExecSetMigrationCaps(ctx context.Context, caps []map[string]interface{}) error {
+	args := map[string]interface{}{
+		"capabilities": caps,
+	}
+
+	return q.executeCommand(ctx, "migrate-set-capabilities", args, nil)
+}
+
+// ExecSetMigrateArguments sets the command line used for migration
+func (q *QMP) ExecSetMigrateArguments(ctx context.Context, url string) error {
+	args := map[string]interface{}{
+		"uri": url,
+	}
+
+	return q.executeCommand(ctx, "migrate", args, nil)
+}
+
+// ExecHotplugMemory adds size of MiB memory to the guest
+func (q *QMP) ExecHotplugMemory(ctx context.Context, qomtype, id, mempath string, size int) error {
+	args := map[string]interface{}{
+		"qom-type": qomtype,
+		"id":       id,
+		"props":    map[string]interface{}{"size": uint64(size) << 20},
+	}
+	if mempath != "" {
+		args["mem-path"] = mempath
+	}
+	err := q.executeCommand(ctx, "object-add", args, nil)
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		if err != nil {
+			q.cfg.Logger.Errorf("Unable to hotplug memory device: %v", err)
+			err = q.executeCommand(ctx, "object-del", map[string]interface{}{"id": id}, nil)
+			if err != nil {
+				q.cfg.Logger.Warningf("Unable to clean up memory object: %v", err)
+			}
+		}
+	}()
+
+	args = map[string]interface{}{
+		"driver": "pc-dimm",
+		"id":     "dimm" + id,
+		"memdev": id,
+	}
+	err = q.executeCommand(ctx, "device_add", args, nil)
+
+	return err
+}