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Add s390x support for Linuxkit binary

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This PR adds the basic support for s390 architecture on linuxkit
command.

Signed-off-by: Alice Frosi <alice@linux.vnet.ibm.com>
This commit is contained in:
Alice Frosi
2017-11-03 17:11:07 +01:00
committed by Alice Frosi
parent c1e464f0f8
commit d6b44f7881
5 changed files with 38 additions and 13 deletions
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2
scripts/push-manifest.sh
View File

@@ -45,7 +45,7 @@ esac
# Push manifest list
OUT=$(manifest-tool $MT_ARGS push from-args \
--ignore-missing \
--platforms linux/amd64,linux/arm64 \
--platforms linux/amd64,linux/arm64,linux/s390x \
--template "$TARGET"-ARCH \
--target "$TARGET")

2
src/cmd/linuxkit/pkglib/build.go
View File

@@ -76,7 +76,7 @@ func (p Pkg) Build(bos ...BuildOpt) error {
var suffix string
switch arch {
case "amd64", "arm64":
case "amd64", "arm64", "s390x":
suffix = "-" + arch
default:
return fmt.Errorf("Unknown arch %q", arch)

2
src/cmd/linuxkit/pkglib/manifest_push_script.go
View File

@@ -48,7 +48,7 @@ esac
# Push manifest list
OUT=$(manifest-tool $MT_ARGS push from-args \
--ignore-missing \
--platforms linux/amd64,linux/arm64 \
--platforms linux/amd64,linux/arm64,linux/s390x \
--template "$TARGET"-ARCH \
--target "$TARGET")

2
src/cmd/linuxkit/pkglib/pkglib.go
View File

@@ -58,7 +58,7 @@ func NewFromCLI(fs *flag.FlagSet, args ...string) (Pkg, error) {
// Defaults
pi := pkgInfo{
Org: "linuxkit",
Arches: []string{"amd64", "arm64"},
Arches: []string{"amd64", "arm64", "s390x"},
GitRepo: "https://github.com/linuxkit/linuxkit",
Network: false,
DisableContentTrust: false,

43
src/cmd/linuxkit/run_qemu.go
View File

@@ -67,8 +67,12 @@ func init() {
defaultArch = "aarch64"
case "amd64":
defaultArch = "x86_64"
case "s390x":
defaultArch = "s390x"
}
switch {
case runtime.GOARCH == "s390x":
defaultAccel = "kvm"
case haveKVM():
defaultAccel = "kvm:tcg"
case runtime.GOOS == "darwin":
@@ -156,7 +160,7 @@ func runQemu(args []string) {
// VM configuration
accel := flags.String("accel", defaultAccel, "Choose acceleration mode. Use 'tcg' to disable it.")
arch := flags.String("arch", defaultArch, "Type of architecture to use, e.g. x86_64, aarch64")
arch := flags.String("arch", defaultArch, "Type of architecture to use, e.g. x86_64, aarch64, s390x")
cpus := flags.String("cpus", "1", "Number of CPUs")
mem := flags.String("mem", "1024", "Amount of memory in MB")
@@ -511,6 +515,8 @@ func buildQemuCmdline(config QemuConfig) (QemuConfig, []string) {
// goArch is the GOARCH equivalent of config.Arch
var goArch string
switch config.Arch {
case "s390x":
goArch = "s390x"
case "aarch64":
goArch = "arm64"
case "x86_64":
@@ -525,15 +531,21 @@ func buildQemuCmdline(config QemuConfig) (QemuConfig, []string) {
}
if config.Accel != "" {
if config.Arch == "aarch64" {
switch config.Arch {
case "s390x":
qemuArgs = append(qemuArgs, "-machine", fmt.Sprintf("s390-ccw-virtio,accel=%s", config.Accel))
case "aarch64":
qemuArgs = append(qemuArgs, "-machine", fmt.Sprintf("virt,gic_version=host,accel=%s", config.Accel))
} else {
default:
qemuArgs = append(qemuArgs, "-machine", fmt.Sprintf("q35,accel=%s", config.Accel))
}
} else {
if config.Arch == "aarch64" {
switch config.Arch {
case "s390x":
qemuArgs = append(qemuArgs, "-machine", "s390-ccw-virtio")
case "aarch64":
qemuArgs = append(qemuArgs, "-machine", "virt")
} else {
default:
qemuArgs = append(qemuArgs, "-machine", "q35")
}
}
@@ -542,8 +554,11 @@ func buildQemuCmdline(config QemuConfig) (QemuConfig, []string) {
if runtime.GOOS == "linux" {
rng = rng + ",filename=/dev/urandom"
}
qemuArgs = append(qemuArgs, "-object", rng, "-device", "virtio-rng-pci,rng=rng0")
if config.Arch == "s390x" {
qemuArgs = append(qemuArgs, "-object", rng, "-device", "virtio-rng-ccw,rng=rng0")
} else {
qemuArgs = append(qemuArgs, "-object", rng, "-device", "virtio-rng-pci,rng=rng0")
}
var lastDisk int
for i, d := range config.Disks {
index := i
@@ -570,7 +585,13 @@ func buildQemuCmdline(config QemuConfig) (QemuConfig, []string) {
for i, p := range config.ISOImages {
if i == 0 {
// This is hdc/CDROM which is skipped by the disk loop above
qemuArgs = append(qemuArgs, "-cdrom", p)
if runtime.GOARCH == "s390x" {
qemuArgs = append(qemuArgs, "-device", "virtio-scsi-ccw")
qemuArgs = append(qemuArgs, "-device", "scsi-cd,drive=cd1")
qemuArgs = append(qemuArgs, "-drive", "file="+p+",format=raw,if=none,id=cd1")
} else {
qemuArgs = append(qemuArgs, "-cdrom", p)
}
} else {
index := lastDisk + i
qemuArgs = append(qemuArgs, "-drive", "file="+p+",index="+strconv.Itoa(index)+",media=cdrom")
@@ -599,7 +620,11 @@ func buildQemuCmdline(config QemuConfig) (QemuConfig, []string) {
qemuArgs = append(qemuArgs, "-net", "none")
} else {
mac := retrieveMAC(config.StatePath)
qemuArgs = append(qemuArgs, "-device", "virtio-net-pci,netdev=t0,mac="+mac.String())
if config.Arch == "s390x" {
qemuArgs = append(qemuArgs, "-device", "virtio-net-ccw,netdev=t0,mac="+mac.String())
} else {
qemuArgs = append(qemuArgs, "-device", "virtio-net-pci,netdev=t0,mac="+mac.String())
}
forwardings, err := buildQemuForwardings(config.PublishedPorts, config.Containerized)
if err != nil {
log.Error(err)