qemu: Introduce qemuAliasFromHostdev

Introduce a common API to generate the alias for a host device

diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index 28260c92be477aefc3b08f8a8b3409b15e6b32ba..0102c960027f929f406b2909fb53ce1ae1217d73 100644 (file)
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -493,6 +493,29 @@ qemuAliasDiskDriveSkipPrefix(const char *dev_name)
 }
 
 
+/* qemuAliasFromHostdev
+ * @hostdev: Pointer to host device
+ *
+ * Generate and return a string containing a drive alias
+ */
+char *
+qemuAliasFromHostdev(const virDomainHostdevDef *hostdev)
+{
+    char *ret;
+
+    if (!hostdev->info->alias) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("hostdev does not have an alias"));
+        return NULL;
+    }
+
+    ignore_value(virAsprintf(&ret, "%s-%s",
+                 virDomainDeviceAddressTypeToString(hostdev->info->type),
+                 hostdev->info->alias));
+    return ret;
+}
+
+
 /* qemuDomainGetMasterKeyAlias:
  *
  * Generate and return the masterKey alias

diff --git a/src/qemu/qemu_alias.h b/src/qemu/qemu_alias.h
index 8f6d9a77f6f131fdbc69eea2c8f77ffccf0a4764..505c40ed6d93acd64abce5cccf1ec90906c7aa13 100644 (file)
--- a/src/qemu/qemu_alias.h
+++ b/src/qemu/qemu_alias.h
@@ -69,6 +69,8 @@ char *qemuAliasFromDisk(const virDomainDiskDef *disk);
 
 const char *qemuAliasDiskDriveSkipPrefix(const char *dev_name);
 
+char *qemuAliasFromHostdev(const virDomainHostdevDef *hostdev);
+
 char *qemuDomainGetMasterKeyAlias(void);
 
 char *qemuDomainGetSecretAESAlias(const char *srcalias,