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qemu: Implement random number generator cold (un)plug

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Add support for using the attach/detach device APIs on the inactive
configuration to add RNG devices.
This commit is contained in:
Peter Krempa 2015-02-05 13:46:06 +01:00
parent 37b620059b
commit fe6acfbd0e
2 changed files with 28 additions and 2 deletions
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1
src/libvirt_private.syms
View File

@ -380,6 +380,7 @@ virDomainPMSuspendedReasonTypeToString;
virDomainRedirdevBusTypeFromString; virDomainRedirdevBusTypeFromString;
virDomainRedirdevBusTypeToString; virDomainRedirdevBusTypeToString;
virDomainRNGBackendTypeToString; virDomainRNGBackendTypeToString;
virDomainRNGDefFree;
virDomainRNGFind; virDomainRNGFind;
virDomainRNGInsert; virDomainRNGInsert;
virDomainRNGModelTypeToString; virDomainRNGModelTypeToString;

29
src/qemu/qemu_driver.c
View File

@ -7427,6 +7427,23 @@ qemuDomainAttachDeviceConfig(virQEMUCapsPtr qemuCaps,
dev->data.fs = NULL; dev->data.fs = NULL;
break; break;
case VIR_DOMAIN_DEVICE_RNG:
if (dev->data.rng->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
virDomainDefHasDeviceAddress(vmdef, &dev->data.rng->info)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("a device with the same address already exists "));
return -1;
}
if (virDomainRNGInsert(vmdef, dev->data.rng, false) < 0)
return -1;
if (qemuDomainAssignAddresses(vmdef, qemuCaps, NULL) < 0)
return -1;
dev->data.rng = NULL;
break;
case VIR_DOMAIN_DEVICE_INPUT: case VIR_DOMAIN_DEVICE_INPUT:
case VIR_DOMAIN_DEVICE_SOUND: case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO: case VIR_DOMAIN_DEVICE_VIDEO:
@ -7436,7 +7453,6 @@ qemuDomainAttachDeviceConfig(virQEMUCapsPtr qemuCaps,
case VIR_DOMAIN_DEVICE_SMARTCARD: case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON: case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM: case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_RNG:
case VIR_DOMAIN_DEVICE_SHMEM: case VIR_DOMAIN_DEVICE_SHMEM:
case VIR_DOMAIN_DEVICE_REDIRDEV: case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_NONE: case VIR_DOMAIN_DEVICE_NONE:
@ -7543,6 +7559,16 @@ qemuDomainDetachDeviceConfig(virDomainDefPtr vmdef,
virDomainFSDefFree(fs); virDomainFSDefFree(fs);
break; break;
case VIR_DOMAIN_DEVICE_RNG:
if ((idx = virDomainRNGFind(vmdef, dev->data.rng)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("no matching RNG device was found"));
return -1;
}
virDomainRNGDefFree(virDomainRNGRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_INPUT: case VIR_DOMAIN_DEVICE_INPUT:
case VIR_DOMAIN_DEVICE_SOUND: case VIR_DOMAIN_DEVICE_SOUND:
case VIR_DOMAIN_DEVICE_VIDEO: case VIR_DOMAIN_DEVICE_VIDEO:
@ -7552,7 +7578,6 @@ qemuDomainDetachDeviceConfig(virDomainDefPtr vmdef,
case VIR_DOMAIN_DEVICE_SMARTCARD: case VIR_DOMAIN_DEVICE_SMARTCARD:
case VIR_DOMAIN_DEVICE_MEMBALLOON: case VIR_DOMAIN_DEVICE_MEMBALLOON:
case VIR_DOMAIN_DEVICE_NVRAM: case VIR_DOMAIN_DEVICE_NVRAM:
case VIR_DOMAIN_DEVICE_RNG:
case VIR_DOMAIN_DEVICE_SHMEM: case VIR_DOMAIN_DEVICE_SHMEM:
case VIR_DOMAIN_DEVICE_REDIRDEV: case VIR_DOMAIN_DEVICE_REDIRDEV:
case VIR_DOMAIN_DEVICE_NONE: case VIR_DOMAIN_DEVICE_NONE: