[libvirt] [PATCH 3/5] qemu: Introduce functions for input device cgroup manipulation
Export qemuSetupInputCgroup and introduce qemuTeardownInputCgroup
for hotunplug.
---
src/qemu/qemu_cgroup.c | 25 ++++++++++++++++++++++++-
src/qemu/qemu_cgroup.h | 4 ++++
2 files changed, 28 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index 0f75e22f9..19252ea23 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -246,7 +246,7 @@ qemuSetupTPMCgroup(virDomainObjPtr vm)
}
-static int
+int
qemuSetupInputCgroup(virDomainObjPtr vm,
virDomainInputDefPtr dev)
{
@@ -270,6 +270,29 @@ qemuSetupInputCgroup(virDomainObjPtr vm,
int
+qemuTeardownInputCgroup(virDomainObjPtr vm,
+ virDomainInputDefPtr dev)
+{
+ qemuDomainObjPrivatePtr priv = vm->privateData;
+ int ret = 0;
+
+ if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES))
+ return 0;
+
+ switch (dev->type) {
+ case VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH:
+ VIR_DEBUG("Process path '%s' for input device",
dev->source.evdev);
+ ret = virCgroupDenyDevicePath(priv->cgroup, dev->source.evdev,
+ VIR_CGROUP_DEVICE_RWM, false);
+ virDomainAuditCgroupPath(vm, priv->cgroup, "deny",
dev->source.evdev, "rwm", ret == 0);
+ break;
+ }
+
+ return ret;
+}
+
+
+int
qemuSetupHostdevCgroup(virDomainObjPtr vm,
virDomainHostdevDefPtr dev)
{
diff --git a/src/qemu/qemu_cgroup.h b/src/qemu/qemu_cgroup.h
index 3fc158361..3b8ff6055 100644
--- a/src/qemu/qemu_cgroup.h
+++ b/src/qemu/qemu_cgroup.h
@@ -37,6 +37,10 @@ int qemuSetupDiskCgroup(virDomainObjPtr vm,
virDomainDiskDefPtr disk);
int qemuTeardownDiskCgroup(virDomainObjPtr vm,
virDomainDiskDefPtr disk);
+int qemuSetupInputCgroup(virDomainObjPtr vm,
+ virDomainInputDefPtr dev);
+int qemuTeardownInputCgroup(virDomainObjPtr vm,
+ virDomainInputDefPtr dev);
int qemuSetupHostdevCgroup(virDomainObjPtr vm,
virDomainHostdevDefPtr dev)
ATTRIBUTE_RETURN_CHECK;
--
2.13.6