Merge pull request #2355 from justincormack/bootrom

Support UEFI ISO boot on hyperkit

docs/platform-hyperkit.md

@@ -12,9 +12,8 @@ Alternatively, you can install HyperKit and VPNKit standalone and use it without
 
 ## Boot
 
-The HyperKit backend currently only supports booting the
-`kernel+initrd` output from `moby` (technically we could support EFI
-boot as well).
+The HyperKit backend currently supports booting the
+`kernel+initrd` output from `moby`, and EFI ISOs using the EFI firmware.
 
 
 ## Console
@@ -28,8 +27,8 @@ HyperKit does not provide a console device.
 ## Disks
 
 The HyperKit backend support configuring a persistent disk using the
-standard `linuxkit` `-disk` syntax.  Currently, only one disk is
-supported and the disk is in raw format.
+standard `linuxkit` `-disk` syntax.  Multiple disks are
+supported and the disks are in raw format.
 
 ## Power management
 
@@ -128,8 +127,8 @@ there are a number of packages, such as `vsudd`, which enable
 tighter integration of the VM with the host (see below).
 
 The HyperKit backend also allows passing custom userdata into the
-[metadata pacakge](./metadata.md) using the `-data` command-line
-option.
+[metadata package](./metadata.md) using the `-data` command-line
+option. This attaches a CD device with the data on.
 
 
 ### `vsudd` unix domain socket forwarding

src/cmd/linuxkit/run_hyperkit.go

@@ -46,6 +46,15 @@ func runHyperKit(args []string) {
 	vsockports := flags.String("vsock-ports", "", "List of vsock ports to forward from the guest on startup (comma separated). A unix domain socket for each port will be created in the state directory")
 	networking := flags.String("networking", hyperkitNetworkingDefault, "Networking mode. Valid options are 'default', 'docker-for-mac', 'vpnkit[,socket-path]', 'vmnet' and 'none'. 'docker-for-mac' connects to the network used by Docker for Mac. 'vpnkit' connects to the VPNKit socket specified. If socket-path is omitted a new VPNKit instance will be started and 'vpnkit_eth.sock' will be created in the state directory. 'vmnet' uses the Apple vmnet framework, requires root/sudo. 'none' disables networking.`")
 
+	// Boot type; we try to determine automatically
+	uefiBoot := flags.Bool("uefi", false, "Use UEFI boot")
+	isoBoot := flags.Bool("iso", false, "Boot image is an ISO")
+	kernelBoot := flags.Bool("kernel", false, "Boot image is kernel+initrd+cmdline 'path'-kernel/-initrd/-cmdline")
+
+	// Paths and settings for UEFI firware
+	// Note, the default uses the firmware shipped with Docker for Mac
+	fw := flags.String("fw", "/Applications/Docker.app/Contents/Resources/uefi/UEFI.fd", "Path to OVMF firmware for UEFI boot")
+
 	if err := flags.Parse(args); err != nil {
 		log.Fatal("Unable to parse args")
 	}
@@ -55,7 +64,50 @@ func runHyperKit(args []string) {
 		flags.Usage()
 		os.Exit(1)
 	}
-	prefix := remArgs[0]
+	path := remArgs[0]
+	prefix := path
+
+	_, err := os.Stat(path)
+	stat := err == nil
+
+	var isoPaths []string
+
+	// if the path does not exist, must be trying to do a kernel boot
+	if !stat {
+		_, err = os.Stat(path + "-kernel")
+		statKernel := err == nil
+		if statKernel {
+			*kernelBoot = true
+		} else {
+			log.Fatalf("Cannot find kernel file (%s): %v", path+"-kernel", err)
+		}
+		_, err = os.Stat(path + "-initrd.img")
+		statInitrd := err == nil
+		if !statInitrd {
+			log.Fatalf("Cannot find initrd file (%s): %v", path+"-initrd.img", err)
+		}
+	} else {
+		// if path ends in .iso they meant an ISO
+		if strings.HasSuffix(path, ".iso") {
+			*isoBoot = true
+			prefix = strings.TrimSuffix(path, ".iso")
+			// hyperkit only supports UEFI ISO boot at present
+			if !*uefiBoot {
+				log.Fatalf("Hyperkit requires --uefi to be set to boot an ISO")
+			}
+		}
+	}
+
+	if *isoBoot {
+		isoPaths = append(isoPaths, path)
+	}
+
+	if *uefiBoot {
+		_, err := os.Stat(*fw)
+		if err != nil {
+			log.Fatalf("Cannot open UEFI firmware file (%s): %v", *fw, err)
+		}
+	}
 
 	if *state == "" {
 		*state = prefix + "-state"
@@ -64,7 +116,6 @@ func runHyperKit(args []string) {
 		log.Fatalf("Could not create state directory: %v", err)
 	}
 
-	isoPath := ""
 	if *data != "" {
 		var d []byte
 		if _, err := os.Stat(*data); os.IsNotExist(err) {
@@ -75,10 +126,11 @@ func runHyperKit(args []string) {
 				log.Fatalf("Cannot read user data: %v", err)
 			}
 		}
-		isoPath = filepath.Join(*state, "data.iso")
+		isoPath := filepath.Join(*state, "data.iso")
 		if err := WriteMetadataISO(isoPath, d); err != nil {
 			log.Fatalf("Cannot write user data ISO: %v", err)
 		}
+		isoPaths = append(isoPaths, isoPath)
 	}
 
 	vpnKitKey := ""
@@ -99,10 +151,13 @@ func runHyperKit(args []string) {
 	vmUUID := uuid.NewV4().String()
 
 	// Run
-	cmdline, err := ioutil.ReadFile(prefix + "-cmdline")
+	var cmdline []byte
+	if *kernelBoot {
+		cmdline, err = ioutil.ReadFile(prefix + "-cmdline")
 		if err != nil {
 			log.Fatalf("Cannot open cmdline file: %v", err)
 		}
+	}
 
 	// Create new HyperKit instance (w/o networking for now)
 	h, err := hyperkit.New(*hyperkitPath, "", *state)
@@ -175,11 +230,15 @@ func runHyperKit(args []string) {
 		log.Fatalf("Invalid networking mode: %s", netMode[0])
 	}
 
+	if *kernelBoot {
 		h.Kernel = prefix + "-kernel"
 		h.Initrd = prefix + "-initrd.img"
+	} else {
+		h.Bootrom = *fw
+	}
 	h.VPNKitKey = vpnKitKey
 	h.UUID = vmUUID
-	h.ISOImage = isoPath
+	h.ISOImages = isoPaths
 	h.VSock = true
 	h.CPUs = *cpus
 	h.Memory = *mem

src/cmd/linuxkit/run_qemu.go

@@ -174,11 +174,6 @@ func runQemu(args []string) {
 			*isoBoot = true
 			prefix = strings.TrimSuffix(path, ".iso")
 		}
-		// autodetect EFI ISO from our default naming
-		if strings.HasSuffix(path, "-efi.iso") {
-			*uefiBoot = true
-			prefix = strings.TrimSuffix(path, "-efi.iso")
-		}
 	}
 
 	if *state == "" {

src/cmd/linuxkit/vendor.conf

@@ -12,7 +12,7 @@ github.com/googleapis/gax-go 8c5154c0fe5bf18cf649634d4c6df50897a32751
 github.com/gophercloud/gophercloud 2804b72cf099b41d2e25c8afcca786f9f962ddee
 github.com/jmespath/go-jmespath bd40a432e4c76585ef6b72d3fd96fb9b6dc7b68d
 github.com/mitchellh/go-ps 4fdf99ab29366514c69ccccddab5dc58b8d84062
-github.com/moby/hyperkit 2dbe405bfb05a93b2237516d1bffed850a4685f3
+github.com/moby/hyperkit a82b409a87f12fa3306813410c37f4eed270efac
 github.com/packethost/packngo 91d54000aa56874149d348a884ba083c41d38091
 github.com/radu-matei/azure-sdk-for-go 3b12823551999669c9a325a32472508e0af7978e
 github.com/radu-matei/azure-vhd-utils e52754d5569d2a643a7775f72ff2a6cf524f4c25

src/cmd/linuxkit/vendor/github.com/moby/hyperkit/README.md

@@ -38,7 +38,7 @@ via `brew` and using `opam` to install the appropriate libraries:
     $ brew install opam libev
     $ opam init
     $ eval `opam config env`
-    $ opam install uri qcow.0.10.0 qcow-tool mirage-block-unix.2.7.0 conf-libev logs fmt mirage-unix prometheus-app
+    $ opam install uri qcow.0.10.3 conduit.1.0.0 lwt.3.1.0 qcow-tool mirage-block-unix.2.7.0 conf-libev logs fmt mirage-unix prometheus-app
 
 Notes:
 

src/cmd/linuxkit/vendor/github.com/moby/hyperkit/go/hyperkit.go

@@ -73,6 +73,8 @@ type Socket9P struct {
 type DiskConfig struct {
 	Path   string `json:"path"`
 	Size   int    `json:"size"`
+	Format string `json:"format"`
+	Driver string `json:"driver"`
 }
 
 // HyperKit contains the configuration of the hyperkit VM
@@ -90,7 +92,7 @@ type HyperKit struct {
 	// Disks contains disk images to use/create.
 	Disks []DiskConfig `json:"disks"`
 	// ISOImage is the (optional) path to a ISO image to attach
-	ISOImage string `json:"iso"`
+	ISOImages []string `json:"iso"`
 	// VSock enables the virtio-socket device and exposes it on the host
 	VSock bool `json:"vsock"`
 	// VSockPorts is a list of guest VSock ports that should be exposed as sockets on the host
@@ -108,6 +110,8 @@ type HyperKit struct {
 	Kernel string `json:"kernel"`
 	// Initrd is the path to the initial ramdisk to boot off
 	Initrd string `json:"initrd"`
+	// Bootrom is the path to a boot rom eg for UEFI boot
+	Bootrom string `json:"bootrom"`
 
 	// CPUs is the number CPUs to configure
 	CPUs int `json:"cpus"`
@@ -222,9 +226,9 @@ func (h *HyperKit) execute(cmdline string) error {
 	if h.Console == ConsoleStdio && !isTerminal(os.Stdout) && h.StateDir == "" {
 		return fmt.Errorf("If ConsoleStdio is set but stdio is not a terminal, StateDir must be specified")
 	}
-	if h.ISOImage != "" {
-		if _, err = os.Stat(h.ISOImage); os.IsNotExist(err) {
-			return fmt.Errorf("ISO %s does not exist", h.ISOImage)
+	for _, image := range h.ISOImages {
+		if _, err = os.Stat(image); os.IsNotExist(err) {
+			return fmt.Errorf("ISO %s does not exist", image)
 		}
 	}
 	if h.VSock && h.StateDir == "" {
@@ -233,12 +237,18 @@ func (h *HyperKit) execute(cmdline string) error {
 	if !h.VSock && len(h.VSockPorts) > 0 {
 		return fmt.Errorf("To forward vsock ports vsock must be enabled")
 	}
+	if h.Bootrom == "" {
 		if _, err = os.Stat(h.Kernel); os.IsNotExist(err) {
 			return fmt.Errorf("Kernel %s does not exist", h.Kernel)
 		}
 		if _, err = os.Stat(h.Initrd); os.IsNotExist(err) {
 			return fmt.Errorf("initrd %s does not exist", h.Initrd)
 		}
+	} else {
+		if _, err = os.Stat(h.Bootrom); os.IsNotExist(err) {
+			return fmt.Errorf("Bootrom %s does not exist", h.Bootrom)
+		}
+	}
 
 	// Create files
 	if h.StateDir != "" {
@@ -428,7 +438,18 @@ func (h *HyperKit) buildArgs(cmdline string) {
 	}
 
 	for _, p := range h.Disks {
-		a = append(a, "-s", fmt.Sprintf("%d:0,virtio-blk,%s", nextSlot, p.Path))
+		// Default the driver to virtio-blk
+		driver := "virtio-blk"
+		if p.Driver != "" {
+			driver = p.Driver
+		}
+		arg := fmt.Sprintf("%d:0,%s,%s", nextSlot, driver, p.Path)
+
+		// Add on a format instruction if specified.
+		if p.Format != "" {
+			arg += ",format=" + p.Format
+		}
+		a = append(a, "-s", arg)
 		nextSlot++
 	}
 
@@ -441,8 +462,8 @@ func (h *HyperKit) buildArgs(cmdline string) {
 		nextSlot++
 	}
 
-	if h.ISOImage != "" {
-		a = append(a, "-s", fmt.Sprintf("%d,ahci-cd,%s", nextSlot, h.ISOImage))
+	for _, image := range h.ISOImages {
+		a = append(a, "-s", fmt.Sprintf("%d,ahci-cd,%s", nextSlot, image))
 		nextSlot++
 	}
 
@@ -460,8 +481,13 @@ func (h *HyperKit) buildArgs(cmdline string) {
 		a = append(a, "-l", fmt.Sprintf("com1,autopty=%s/tty,log=%s/console-ring", h.StateDir, h.StateDir))
 	}
 
+	if h.Bootrom == "" {
 		kernArgs := fmt.Sprintf("kexec,%s,%s,earlyprintk=serial %s", h.Kernel, h.Initrd, cmdline)
 		a = append(a, "-f", kernArgs)
+	} else {
+		kernArgs := fmt.Sprintf("bootrom,%s,,", h.Bootrom)
+		a = append(a, "-f", kernArgs)
+	}
 
 	h.Arguments = a
 	h.CmdLine = h.HyperKit + " " + strings.Join(a, " ")

src/cmd/linuxkit/vendor/github.com/moby/hyperkit/src/include/xhyve/virtio.h

@@ -212,7 +212,7 @@ struct vring_used {
 #define	VIRTIO_VENDOR		0x1AF4
 #define	VIRTIO_DEV_NET		0x1000
 #define	VIRTIO_DEV_BLOCK	0x1001
-#define	VIRTIO_DEV_RANDOM	0x1002
+#define	VIRTIO_DEV_RANDOM	0x1005
 #define VIRTIO_DEV_9P		0x1009
 #define VIRTIO_DEV_SOCK		0x103f /* In the legacy range. */