Re: [libvirt] [PATCH 3/4] qemu: hotplug: Introduce hot unplug for mediated devices

Mediated devices support hot-{plug,unplug} since their introduction in kernel 4.10, however this feature has been missing in libvirt since commit ec783d7c introduced a hostdev type for mdevs. Signed-off-by: Erik Skultety <eskultet(a)redhat.com&gt; --- src/qemu/qemu_hotplug.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 4abc7393b..ff77b47bc 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c

@@ -5059,6 +5071,32 @@ qemuDomainDetachSCSIVHostDevice(virQEMUDriverPtr driver, return ret; } + +static int +qemuDomainDetachMediatedDevice(virQEMUDriverPtr driver, + virDomainObjPtr vm, + virDomainHostdevDefPtr detach) +{ + int ret = -1; + qemuDomainObjPrivatePtr priv = vm->privateData; + + if (!detach->info->alias) { + virReportError(VIR_ERR_OPERATION_FAILED, + "%s", _("device cannot be detached without a device alias"));

+ return -1; + }