Re: [libvirt] [PATCH] qemu: Check for existing hostdev address for cold attach device

https://bugzilla.redhat.com/show_bug.cgi?id=1559867 Add a check if the incoming <hostdev ...> with specified <address> already exists and if so fail the attach.

Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- 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 38ea865ce3..7b4cdbcdcf 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -8014,6 +8014,12 @@ 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; + }