[libvirt] [PATCH v6 09/11] QEMU Cgroup support for TPM passthrough

Some refactoring for virDomainChrSourceDef type of devices so we can use common code. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com&gt; Reviewed-by: Corey Bryant <coreyb(a)linux.vnet.ibm.com&gt; Tested-by: Corey Bryant <coreyb(a)linux.vnet.ibm.com&gt; --- src/qemu/qemu_cgroup.c | 53 +++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 43 insertions(+), 10 deletions(-) Index: libvirt/src/qemu/qemu_cgroup.c =================================================================== --- libvirt.orig/src/qemu/qemu_cgroup.c +++ libvirt/src/qemu/qemu_cgroup.c @@ -130,34 +130,62 @@ int qemuTeardownDiskCgroup(virDomainObjP &data); } - static int -qemuSetupChardevCgroup(virDomainDefPtr def, - virDomainChrDefPtr dev, - void *opaque) +qemuSetupChrSourceCgroup(virDomainDefPtr def, + virDomainChrSourceDefPtr dev, + qemuCgroupData *data) { - qemuCgroupData *data = opaque; int rc; - if (dev->source.type != VIR_DOMAIN_CHR_TYPE_DEV) + if (dev->type != VIR_DOMAIN_CHR_TYPE_DEV) return 0; + VIR_DEBUG("Process path '%s' for device", dev->data.file.path); - VIR_DEBUG("Process path '%s' for disk", dev->source.data.file.path); - rc = virCgroupAllowDevicePath(data->cgroup, dev->source.data.file.path, + rc = virCgroupAllowDevicePath(data->cgroup, dev->data.file.path, VIR_CGROUP_DEVICE_RW); virDomainAuditCgroupPath(data->vm, data->cgroup, "allow", - dev->source.data.file.path, "rw", rc); + dev->data.file.path, "rw", rc); if (rc < 0) { virReportSystemError(-rc, _("Unable to allow device %s for %s"), - dev->source.data.file.path, def->name); + dev->data.file.path, def->name); return -1; } return 0; } +static int +qemuSetupChardevCgroup(virDomainDefPtr def, + virDomainChrDefPtr dev, + void *opaque) +{ + qemuCgroupData *data = opaque; + + return qemuSetupChrSourceCgroup(def, &dev->source, data); +} + + +static int +qemuSetupTPMCgroup(virDomainDefPtr def, + virDomainTPMDefPtr dev, + qemuCgroupData *data) +{ + int rc = 0; + + switch (dev->type) { + case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH: + rc = qemuSetupChrSourceCgroup(def, &dev->data.passthrough.source, + data); + break; + case VIR_DOMAIN_TPM_TYPE_LAST: + break; + } + + return rc; +} + int qemuSetupHostUsbDeviceCgroup(virUSBDevicePtr dev ATTRIBUTE_UNUSED, const char *path, @@ -275,6 +303,11 @@ int qemuSetupCgroup(virQEMUDriverPtr dri &data) < 0) goto cleanup; + if (vm->def->tpm) + qemuSetupTPMCgroup(vm->def, + vm->def->tpm, + &data); + for (i = 0; i < vm->def->nhostdevs; i++) { virDomainHostdevDefPtr hostdev = vm->def->hostdevs[i]; virUSBDevicePtr usb;