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qemu: implement vsock hotunplug

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
Ján Tomko 2018-05-30 12:49:04 +02:00
parent 0b9d4970b4
commit f3d960391c
3 changed files with 74 additions and 2 deletions
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5
src/qemu/qemu_driver.c
View File

@ -7799,6 +7799,10 @@ qemuDomainDetachDeviceLive(virDomainObjPtr vm,
ret = qemuDomainDetachRedirdevDevice(driver, vm, dev->data.redirdev, async);
break;
case VIR_DOMAIN_DEVICE_VSOCK:
ret = qemuDomainDetachVsockDevice(vm, dev->data.vsock, async);
break;
case VIR_DOMAIN_DEVICE_FS:
case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO:
@ -7811,7 +7815,6 @@ qemuDomainDetachDeviceLive(virDomainObjPtr vm,
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_VSOCK:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("live detach of device '%s' is not supported"),

68
src/qemu/qemu_hotplug.c
View File

@ -4596,6 +4596,26 @@ qemuDomainRemoveInputDevice(virDomainObjPtr vm,
}
static int
qemuDomainRemoveVsockDevice(virDomainObjPtr vm,
virDomainVsockDefPtr dev)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUDriverPtr driver = priv->driver;
virObjectEventPtr event = NULL;
VIR_DEBUG("Removing vsock device %s from domain %p %s",
dev->info.alias, vm, vm->def->name);
event = virDomainEventDeviceRemovedNewFromObj(vm, dev->info.alias);
qemuDomainEventQueue(driver, event);
qemuDomainReleaseDeviceAddress(vm, &dev->info, NULL);
virDomainVsockDefFree(vm->def->vsock);
vm->def->vsock = NULL;
return 0;
}
static int
qemuDomainRemoveRedirdevDevice(virQEMUDriverPtr driver,
virDomainObjPtr vm,
@ -4690,6 +4710,10 @@ qemuDomainRemoveDevice(virQEMUDriverPtr driver,
ret = qemuDomainRemoveWatchdog(driver, vm, dev->data.watchdog);
break;
case VIR_DOMAIN_DEVICE_VSOCK:
ret = qemuDomainRemoveVsockDevice(vm, dev->data.vsock);
break;
case VIR_DOMAIN_DEVICE_NONE:
case VIR_DOMAIN_DEVICE_LEASE:
case VIR_DOMAIN_DEVICE_FS:
@ -4703,7 +4727,6 @@ qemuDomainRemoveDevice(virQEMUDriverPtr driver,
case VIR_DOMAIN_DEVICE_TPM:
case VIR_DOMAIN_DEVICE_PANIC:
case VIR_DOMAIN_DEVICE_IOMMU:
case VIR_DOMAIN_DEVICE_VSOCK:
case VIR_DOMAIN_DEVICE_LAST:
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("don't know how to remove a %s device"),
@ -6592,3 +6615,46 @@ qemuDomainDetachInputDevice(virDomainObjPtr vm,
qemuDomainResetDeviceRemoval(vm);
return ret;
}
int
qemuDomainDetachVsockDevice(virDomainObjPtr vm,
virDomainVsockDefPtr dev,
bool async)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUDriverPtr driver = priv->driver;
virDomainVsockDefPtr vsock = vm->def->vsock;
int ret = -1;
if (!vsock ||
!virDomainVsockDefEquals(dev, vsock)) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("matching vsock device not found"));
return -1;
}
if (!async)
qemuDomainMarkDeviceForRemoval(vm, &vsock->info);
qemuDomainObjEnterMonitor(driver, vm);
if (qemuMonitorDelDevice(priv->mon, vsock->info.alias)) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto cleanup;
}
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
if (async) {
ret = 0;
} else {
if ((ret = qemuDomainWaitForDeviceRemoval(vm)) == 1)
ret = qemuDomainRemoveVsockDevice(vm, vsock);
}
cleanup:
if (!async)
qemuDomainResetDeviceRemoval(vm);
return ret;
}

3
src/qemu/qemu_hotplug.h
View File

@ -201,4 +201,7 @@ int qemuDomainDetachInputDevice(virDomainObjPtr vm,
virDomainInputDefPtr def,
bool async);
int qemuDomainDetachVsockDevice(virDomainObjPtr vm,
virDomainVsockDefPtr dev,
bool async);
#endif /* __QEMU_HOTPLUG_H__ */