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qemu_command.c: move CPU mode check to qemu_validate.c

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All but VIR_CPU_MODE_HOST_MODEL were moved. 'host_model' mode
has nuances that forbid the verification to be moved to parse
time.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Daniel Henrique Barboza 2020-10-10 11:39:20 -03:00
parent 2d8a60fab1
commit 4b42c27ee7
3 changed files with 64 additions and 18 deletions
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20
src/qemu/qemu_command.c
View File

@ -6243,13 +6243,6 @@ qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
if (def->os.arch == VIR_ARCH_ARMV7L &&
driver->hostarch == VIR_ARCH_AARCH64) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_AARCH64_OFF)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("QEMU binary does not support CPU "
"host-passthrough for armv7l on "
"aarch64 host"));
return -1;
}
virBufferAddLit(buf, ",aarch64=off");
}
@ -6257,19 +6250,16 @@ qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_MIGRATABLE)) {
virBufferAsprintf(buf, ",migratable=%s",
virTristateSwitchTypeToString(cpu->migratable));
} else if (ARCH_IS_X86(def->os.arch) &&
cpu->migratable == VIR_TRISTATE_SWITCH_OFF) {
/* This is the default on x86 */
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Migratable attribute for host-passthrough "
"CPU is not supported by QEMU binary"));
return -1;
}
}
break;
case VIR_CPU_MODE_HOST_MODEL:
/* HOST_MODEL is a valid CPU mode for domain XMLs of all archs, meaning
* that we can't move this validation to parse time. By the time we reach
* this point, all non-PPC64 archs must have translated the CPU model to
* something else and set the CPU mode to MODE_CUSTOM.
*/
if (ARCH_IS_PPC64(def->os.arch)) {
virBufferAddLit(buf, "host");
if (cpu->model &&

56
src/qemu/qemu_validate.c
View File

@ -352,6 +352,59 @@ qemuValidateDomainDefFeatures(const virDomainDef *def,
}
static int
qemuValidateDomainDefCpu(virQEMUDriverPtr driver,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virCPUDefPtr cpu = def->cpu;
if (!cpu)
return 0;
if (!cpu->model && cpu->mode == VIR_CPU_MODE_CUSTOM)
return 0;
switch ((virCPUMode) cpu->mode) {
case VIR_CPU_MODE_HOST_PASSTHROUGH:
if (def->os.arch == VIR_ARCH_ARMV7L &&
driver->hostarch == VIR_ARCH_AARCH64) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_AARCH64_OFF)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("QEMU binary does not support CPU "
"host-passthrough for armv7l on "
"aarch64 host"));
return -1;
}
}
if (cpu->migratable &&
cpu->migratable != VIR_TRISTATE_SWITCH_OFF &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_MIGRATABLE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Migratable attribute for host-passthrough "
"CPU is not supported by QEMU binary"));
return -1;
}
break;
case VIR_CPU_MODE_HOST_MODEL:
/* qemu_command.c will error out if cpu->mode is HOST_MODEL for
* every arch but PPC64. However, we can't move this validation
* here because non-PPC64 archs will translate HOST_MODEL to
* something else during domain start, changing cpu->mode to
* CUSTOM.
*/
break;
case VIR_CPU_MODE_CUSTOM:
case VIR_CPU_MODE_LAST:
break;
}
return 0;
}
static int
qemuValidateDomainDefClockTimers(const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
@ -935,6 +988,9 @@ qemuValidateDomainDef(const virDomainDef *def,
}
}
if (qemuValidateDomainDefCpu(driver, def, qemuCaps) < 0)
return -1;
if (qemuDomainDefValidateMemoryHotplug(def, qemuCaps, NULL) < 0)
return -1;

2
tests/qemuxml2argvtest.c
View File

@ -2892,7 +2892,7 @@ mymain(void)
QEMU_CAPS_DEVICE_VIRTIO_MMIO,
QEMU_CAPS_DEVICE_PL011,
QEMU_CAPS_KVM, QEMU_CAPS_CPU_AARCH64_OFF);
DO_TEST_FAILURE("aarch64-kvm-32-on-64",
DO_TEST_PARSE_ERROR("aarch64-kvm-32-on-64",
QEMU_CAPS_DEVICE_VIRTIO_MMIO,
QEMU_CAPS_KVM);
DO_TEST("aarch64-pci-serial",