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qemu: Wire up <memory/> offline update

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Updating offline XML of <memory/> devices might come handy when
dealing with virtio-mem devices. But it's implemented to just
replace one virDomainMemoryDef with another so it can be used to
change almost anything.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik 2021-09-10 16:41:43 +02:00
parent 3ec559661a
commit 99e4ae2b02
1 changed files with 18 additions and 1 deletions
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19
src/qemu/qemu_driver.c
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@ -7653,6 +7653,7 @@ qemuDomainUpdateDeviceConfig(virDomainDef *vmdef,
virDomainDiskDef *newDisk;
virDomainGraphicsDef *newGraphics;
virDomainNetDef *net;
virDomainMemoryDef *mem;
virDomainDeviceDef oldDev = { .type = dev->type };
int pos;
@ -7715,6 +7716,23 @@ qemuDomainUpdateDeviceConfig(virDomainDef *vmdef,
dev->data.net = NULL;
break;
case VIR_DOMAIN_DEVICE_MEMORY:
mem = virDomainMemoryFindByDeviceInfo(vmdef, &dev->data.memory->info, &pos);
if (!mem) {
virReportError(VIR_ERR_INVALID_ARG, "%s", _("memory not found"));
return -1;
}
oldDev.data.memory = mem;
if (virDomainDefCompatibleDevice(vmdef, dev, &oldDev,
VIR_DOMAIN_DEVICE_ACTION_UPDATE,
false) < 0)
return -1;
virDomainMemoryDefFree(vmdef->mems[pos]);
vmdef->mems[pos] = g_steal_pointer(&dev->data.memory);
break;
case VIR_DOMAIN_DEVICE_FS:
case VIR_DOMAIN_DEVICE_INPUT:
case VIR_DOMAIN_DEVICE_SOUND:
@ -7731,7 +7749,6 @@ qemuDomainUpdateDeviceConfig(virDomainDef *vmdef,
case VIR_DOMAIN_DEVICE_CONTROLLER:
case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_CHR:
case VIR_DOMAIN_DEVICE_MEMORY:
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC: