pci: rename virPCIDeviceGetVFIOGroupDev to virPCIDeviceGetIOMMUGroupDev

I realized after the fact that it's probably better in the long run to
give this function a name that matches the name of the link used in
sysfs to hold the group (iommu_group).

I'm changing it now because I'm about to add several more functions
that deal with iommu groups.

src/libvirt_private.syms

@@ -1698,6 +1698,7 @@ virPCIDeviceCopy;
 virPCIDeviceDetach;
 virPCIDeviceFileIterate;
 virPCIDeviceFree;
+virPCIDeviceGetIOMMUGroupDev;
 virPCIDeviceGetManaged;
 virPCIDeviceGetName;
 virPCIDeviceGetRemoveSlot;
@@ -1705,7 +1706,6 @@ virPCIDeviceGetReprobe;
 virPCIDeviceGetStubDriver;
 virPCIDeviceGetUnbindFromStub;
 virPCIDeviceGetUsedBy;
-virPCIDeviceGetVFIOGroupDev;
 virPCIDeviceIsAssignable;
 virPCIDeviceListAdd;
 virPCIDeviceListCount;

src/qemu/qemu_cgroup.c

@@ -277,7 +277,7 @@ qemuSetupHostdevCGroup(virDomainObjPtr vm,
                 if (!pci)
                     goto cleanup;
 
-                if (!(path = virPCIDeviceGetVFIOGroupDev(pci)))
+                if (!(path = virPCIDeviceGetIOMMUGroupDev(pci)))
                     goto cleanup;
 
                 VIR_DEBUG("Cgroup allow %s for PCI device assignment", path);
@@ -376,7 +376,7 @@ qemuTeardownHostdevCgroup(virDomainObjPtr vm,
                 if (!pci)
                     goto cleanup;
 
-                if (!(path = virPCIDeviceGetVFIOGroupDev(pci)))
+                if (!(path = virPCIDeviceGetIOMMUGroupDev(pci)))
                     goto cleanup;
 
                 VIR_DEBUG("Cgroup deny %s for PCI device assignment", path);

src/security/security_apparmor.c

@@ -823,7 +823,7 @@ AppArmorSetSecurityHostdevLabel(virSecurityManagerPtr mgr,
 
         if (dev->source.subsys.u.pci.backend
             == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
-            char *vfioGroupDev = virPCIDeviceGetVFIOGroupDev(pci);
+            char *vfioGroupDev = virPCIDeviceGetIOMMUGroupDev(pci);
 
             if (!vfioGroupDev) {
                 virPCIDeviceFree(pci);

src/security/security_dac.c

@@ -529,7 +529,7 @@ virSecurityDACSetSecurityHostdevLabel(virSecurityManagerPtr mgr,
 
         if (dev->source.subsys.u.pci.backend
             == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
-            char *vfioGroupDev = virPCIDeviceGetVFIOGroupDev(pci);
+            char *vfioGroupDev = virPCIDeviceGetIOMMUGroupDev(pci);
 
             if (!vfioGroupDev) {
                 virPCIDeviceFree(pci);
@@ -648,7 +648,7 @@ virSecurityDACRestoreSecurityHostdevLabel(virSecurityManagerPtr mgr,
 
         if (dev->source.subsys.u.pci.backend
             == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
-            char *vfioGroupDev = virPCIDeviceGetVFIOGroupDev(pci);
+            char *vfioGroupDev = virPCIDeviceGetIOMMUGroupDev(pci);
 
             if (!vfioGroupDev) {
                 virPCIDeviceFree(pci);

src/security/security_selinux.c

@@ -1333,7 +1333,7 @@ virSecuritySELinuxSetSecurityHostdevSubsysLabel(virDomainDefPtr def,
 
         if (dev->source.subsys.u.pci.backend
             == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
-            char *vfioGroupDev = virPCIDeviceGetVFIOGroupDev(pci);
+            char *vfioGroupDev = virPCIDeviceGetIOMMUGroupDev(pci);
 
             if (!vfioGroupDev) {
                 virPCIDeviceFree(pci);
@@ -1528,7 +1528,7 @@ virSecuritySELinuxRestoreSecurityHostdevSubsysLabel(virSecurityManagerPtr mgr,
 
         if (dev->source.subsys.u.pci.backend
             == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
-            char *vfioGroupDev = virPCIDeviceGetVFIOGroupDev(pci);
+            char *vfioGroupDev = virPCIDeviceGetIOMMUGroupDev(pci);
 
             if (!vfioGroupDev) {
                 virPCIDeviceFree(pci);

src/util/virpci.c

@@ -1852,11 +1852,11 @@ cleanup:
     return ret;
 }
 
-/* virPCIDeviceGetVFIOGroupDev - return the name of the device used to
- * control this PCI device's group (e.g. "/dev/vfio/15")
+/* virPCIDeviceGetIOMMUGroupDev - return the name of the device used
+ * to control this PCI device's group (e.g. "/dev/vfio/15")
  */
 char *
-virPCIDeviceGetVFIOGroupDev(virPCIDevicePtr dev)
+virPCIDeviceGetIOMMUGroupDev(virPCIDevicePtr dev)
 {
     char *devPath = NULL;
     char *groupPath = NULL;

src/util/virpci.h

@@ -117,7 +117,7 @@ int virPCIDeviceFileIterate(virPCIDevicePtr dev,
                             virPCIDeviceFileActor actor,
                             void *opaque);
 char *
-virPCIDeviceGetVFIOGroupDev(virPCIDevicePtr dev);
+virPCIDeviceGetIOMMUGroupDev(virPCIDevicePtr dev);
 
 int virPCIDeviceIsAssignable(virPCIDevicePtr dev,
                              int strict_acs_check);