[libvirt] [PATCH v2 1/2] qemu: Check for existing hostdev address for cold attach device
Add a check during qemuDomainAttachDeviceConfig whether the
new/incoming <hostdev ...> device would have an existing
<address> already and if so fail the attach. This can happen
if two hostdev's are added supplying the same address or
if the new hostdev address could possibly be a duplicate
of an existing SCSI <disk>.
Signed-off-by: John Ferlan <jferlan(a)redhat.com>
---
src/qemu/qemu_driver.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index f0fb806fcd..ae8e0e898a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -8015,6 +8015,12 @@ qemuDomainAttachDeviceConfig(virDomainDefPtr vmdef,
_("device is already in the domain
configuration"));
return -1;
}
+ if (dev->data.hostdev->info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE
&&
+ virDomainDefHasDeviceAddress(vmdef, dev->data.hostdev->info)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("a device with the same address already exists
"));
+ return -1;
+ }
if (virDomainHostdevInsert(vmdef, hostdev))
return -1;
dev->data.hostdev = NULL;
--
2.14.4