Re: [libvirt] [PATCH v2 02/39] virhostdev: Introduce and use virHostdevIsVFIODevice

In some places we need to check if a hostdev has VFIO backend. Because of how complicated virDomainHostdevDef structure is, the check consists of three lines. Move them to a function and replace all checks with the function call. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/conf/domain_conf.c | 5 +---- src/libvirt_private.syms | 1 + src/qemu/qemu_cgroup.c | 4 +--- src/qemu/qemu_domain.c | 12 +++--------- src/qemu/qemu_hotplug.c | 8 +------- src/util/virhostdev.c | 15 +++++++++++++++ src/util/virhostdev.h | 3 +++ 7 files changed, 25 insertions(+), 23 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index c290baf953..adf8455579 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -31550,10 +31550,7 @@ virDomainDefHasVFIOHostdev(const virDomainDef *def) size_t i; for (i = 0; i < def->nhostdevs; i++) { - const virDomainHostdevDef *tmp = def->hostdevs[i]; - if (tmp->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && - tmp->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI && - tmp->source.subsys.u.pci.backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) + if (virHostdevIsVFIODevice(def->hostdevs[i])) return true; } diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 287e63bffa..ac37aea626 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2104,6 +2104,7 @@ virHostCPUStatsAssign; virHostdevFindUSBDevice; virHostdevIsMdevDevice; virHostdevIsSCSIDevice; +virHostdevIsVFIODevice; virHostdevManagerGetDefault; virHostdevPCINodeDeviceDetach; virHostdevPCINodeDeviceReAttach; diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index 740a1b33dc..318157dab0 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -413,9 +413,7 @@ qemuTeardownHostdevCgroup(virDomainObjPtr vm, if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES)) return 0; - if (dev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && - dev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI && - dev->source.subsys.u.pci.backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO && + if (virHostdevIsVFIODevice(dev) && qemuDomainGetHostdevPath(vm->def, dev, true, &npaths, &path, NULL) < 0) goto cleanup; diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2aa2164953..824bca89f4 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -11871,9 +11871,7 @@ getPPC64MemLockLimitBytes(virDomainDefPtr def) for (i = 0; i < def->nhostdevs; i++) { virDomainHostdevDefPtr dev = def->hostdevs[i]; - if (dev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && - dev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI && - dev->source.subsys.u.pci.backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) { + if (virHostdevIsVFIODevice(dev)) { usesVFIO = true; pciAddr = &dev->source.subsys.u.pci.addr; @@ -12025,12 +12023,8 @@ qemuDomainGetMemLockLimitBytes(virDomainDefPtr def) * Note that this may not be valid for all platforms. */ for (i = 0; i < def->nhostdevs; i++) { - virDomainHostdevSubsysPtr subsys = &def->hostdevs[i]->source.subsys; - - if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && - (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_MDEV || - (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI && - subsys->u.pci.backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO))) { + if (virHostdevIsVFIODevice(def->hostdevs[i]) || + virHostdevIsMdevDevice(def->hostdevs[i])) { memKB = virDomainDefGetMemoryTotal(def) + 1024 * 1024; goto done; }