Re: [libvirt] [PATCH v4 10/14] qemu: cgroup: Adjust cgroups' logic to allow mediated devices

As goes for all the other hostdev device types, grant the qemu process access to /dev/vfio/<mediated_device_iommu_group>. Signed-off-by: Erik Skultety <eskultet(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index c0f060b0a3..d1ac1d641b 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -6999,10 +6999,12 @@ qemuDomainGetHostdevPath(virDomainDefPtr def, virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci; virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi; virDomainHostdevSubsysSCSIVHostPtr hostsrc = &dev->source.subsys.u.scsi_host; + virDomainHostdevSubsysMediatedDevPtr mdevsrc = &dev->source.subsys.u.mdev; virPCIDevicePtr pci = NULL; virUSBDevicePtr usb = NULL; virSCSIDevicePtr scsi = NULL; virSCSIVHostDevicePtr host = NULL; + virMediatedDevicePtr mdev = NULL; char *tmpPath = NULL; bool freeTmpPath = false; bool includeVFIO = false; @@ -7103,6 +7105,17 @@ qemuDomainGetHostdevPath(virDomainDefPtr def, } case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV: + if (!(mdev = virMediatedDeviceNew(mdevsrc->uuidstr, + mdevsrc->model))) + goto cleanup; + + if (!(tmpPath = virMediatedDeviceGetIOMMUGroupDev(mdev))) + goto cleanup; + + freeTmpPath = true; + includeVFIO = true; + perm = VIR_CGROUP_DEVICE_RW; + break; case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST: break; } @@ -7152,6 +7165,7 @@ qemuDomainGetHostdevPath(virDomainDefPtr def, virUSBDeviceFree(usb); virSCSIDeviceFree(scsi); virSCSIVHostDeviceFree(host); + virMediatedDeviceFree(mdev); if (freeTmpPath) VIR_FREE(tmpPath); return ret;