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qemu: append kernel root parameters iff root image is provided

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For initrd based boot, we do not need the root parameters.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
This commit is contained in:
Peng Tao 2018-03-22 15:39:48 +08:00
parent 21343d7d71
commit 463e6dee0b
4 changed files with 44 additions and 17 deletions
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2
virtcontainers/qemu.go
View File

@ -175,7 +175,7 @@ func (q *qemu) init(pod *Pod) error {
q.config = pod.config.HypervisorConfig
q.pod = pod
q.arch = newQemuArch(q.config.HypervisorMachineType)
q.arch = newQemuArch(q.config)
if err = pod.storage.fetchHypervisorState(pod.id, &q.state); err != nil {
q.Logger().Debug("Creating bridges")

16
virtcontainers/qemu_amd64.go
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@ -42,10 +42,13 @@ var qemuPaths = map[string]string{
QemuQ35: defaultQemuPath,
}
var kernelParams = []Param{
var kernelRootParams = []Param{
{"root", "/dev/pmem0p1"},
{"rootflags", "dax,data=ordered,errors=remount-ro rw"},
{"rootfstype", "ext4"},
}
var kernelParams = []Param{
{"tsc", "reliable"},
{"no_timer_check", ""},
{"rcupdate.rcu_expedited", "1"},
@ -83,12 +86,13 @@ func maxQemuVCPUs() uint32 {
return uint32(240)
}
func newQemuArch(machineType string) qemuArch {
func newQemuArch(config HypervisorConfig) qemuArch {
machineType := config.HypervisorMachineType
if machineType == "" {
machineType = defaultQemuMachineType
}
return &qemuAmd64{
q := &qemuAmd64{
qemuArchBase{
machineType: machineType,
qemuPaths: qemuPaths,
@ -98,6 +102,12 @@ func newQemuArch(machineType string) qemuArch {
kernelParams: kernelParams,
},
}
if config.ImagePath != "" {
q.kernelParams = append(q.kernelParams, kernelRootParams...)
}
return q
}
func (q *qemuAmd64) capabilities() capabilities {

27
virtcontainers/qemu_amd64_test.go
View File

@ -26,21 +26,28 @@ import (
"github.com/stretchr/testify/assert"
)
func newTestQemu(machineType string) qemuArch {
config := HypervisorConfig{
HypervisorMachineType: machineType,
}
return newQemuArch(config)
}
func TestQemuAmd64Capabilities(t *testing.T) {
assert := assert.New(t)
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
caps := amd64.capabilities()
assert.True(caps.isBlockDeviceHotplugSupported())
amd64 = newQemuArch(QemuQ35)
amd64 = newTestQemu(QemuQ35)
caps = amd64.capabilities()
assert.False(caps.isBlockDeviceHotplugSupported())
}
func TestQemuAmd64Bridges(t *testing.T) {
assert := assert.New(t)
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
len := 5
bridges := amd64.bridges(uint32(len))
@ -53,7 +60,7 @@ func TestQemuAmd64Bridges(t *testing.T) {
assert.NotNil(b.Address)
}
amd64 = newQemuArch(QemuQ35)
amd64 = newTestQemu(QemuQ35)
bridges = amd64.bridges(uint32(len))
assert.Len(bridges, len)
@ -64,14 +71,14 @@ func TestQemuAmd64Bridges(t *testing.T) {
assert.NotNil(b.Address)
}
amd64 = newQemuArch(QemuQ35 + QemuPC)
amd64 = newTestQemu(QemuQ35 + QemuPC)
bridges = amd64.bridges(uint32(len))
assert.Nil(bridges)
}
func TestQemuAmd64CPUModel(t *testing.T) {
assert := assert.New(t)
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
expectedOut := defaultCPUModel
model := amd64.cpuModel()
@ -85,7 +92,7 @@ func TestQemuAmd64CPUModel(t *testing.T) {
func TestQemuAmd64MemoryTopology(t *testing.T) {
assert := assert.New(t)
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
memoryOffset := 1024
hostMem := uint64(100)
@ -103,7 +110,7 @@ func TestQemuAmd64MemoryTopology(t *testing.T) {
func TestQemuAmd64AppendImage(t *testing.T) {
var devices []govmmQemu.Device
assert := assert.New(t)
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
f, err := ioutil.TempFile("", "img")
assert.NoError(err)
@ -135,7 +142,7 @@ func TestQemuAmd64AppendBridges(t *testing.T) {
assert := assert.New(t)
// check PC
amd64 := newQemuArch(QemuPC)
amd64 := newTestQemu(QemuPC)
bridges := amd64.bridges(1)
assert.Len(bridges, 1)
@ -156,7 +163,7 @@ func TestQemuAmd64AppendBridges(t *testing.T) {
assert.Equal(expectedOut, devices)
// Check Q35
amd64 = newQemuArch(QemuQ35)
amd64 = newTestQemu(QemuQ35)
bridges = amd64.bridges(1)
assert.Len(bridges, 1)

16
virtcontainers/qemu_arm64.go
View File

@ -38,11 +38,14 @@ var qemuPaths = map[string]string{
}
var kernelParams = []Param{
{"root", "/dev/vda1"},
{"console", "ttyAMA0"},
{"iommu.passthrough", "0"},
}
var kernelRootParams = []Param{
{"root", "/dev/vda1"},
}
var supportedQemuMachines = []govmmQemu.Machine{
{
Type: QemuVirt,
@ -55,12 +58,13 @@ func maxQemuVCPUs() uint32 {
return uint32(runtime.NumCPU())
}
func newQemuArch(machineType string) qemuArch {
func newQemuArch(config HypervisrConfig) qemuArch {
machineType := config.HypervisorMachineType
if machineType == "" {
machineType = defaultQemuMachineType
}
return &qemuArm64{
q := &qemuArm64{
qemuArchBase{
machineType: machineType,
qemuPaths: qemuPaths,
@ -70,4 +74,10 @@ func newQemuArch(machineType string) qemuArch {
kernelParams: kernelParams,
},
}
if config.ImagePath != "" {
q.kernelParams = append(q.kernelParams, kernelRootParams...)
}
return q
}