qga: add command guest-get-disks

Add API and stubs for new guest-get-disks command.

The command guest-get-fsinfo can be used to list information about disks
and partitions but it is limited only to mounted disks with filesystem.
This new command should allow listing information about disks of the VM
regardles whether they are mounted or not. This can be usefull for
management applications for mapping virtualized devices or pass-through
devices to device names in the guest OS.

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 3bffee99d4c97307eb1b930380b32eae2980214d..422144bcffe48673167f562cc633252263177572 100644 (file)
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -3051,3 +3051,9 @@ GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
 
     return NULL;
 }
+
+GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}

diff --git a/qga/commands-win32.c b/qga/commands-win32.c
index 0c33d48aaa4b033eee3942756bc057d9793d9969..f7bdd5a8b5768c22e968be7dc98206a9dd294f7a 100644 (file)
--- a/qga/commands-win32.c
+++ b/qga/commands-win32.c
@@ -2458,3 +2458,9 @@ GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
     }
     return head;
 }
+
+GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index fe10631e4c9ce964bc955192c9df96e59f052d82..e123a000bea943fa30c7ec800df72193733f5215 100644 (file)
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -865,6 +865,37 @@
            'bus': 'int', 'target': 'int', 'unit': 'int',
            '*serial': 'str', '*dev': 'str'} }
 
+##
+# @GuestDiskInfo:
+#
+# @name: device node (Linux) or device UNC (Windows)
+# @partition: whether this is a partition or disk
+# @dependents: list of dependent devices; e.g. for LVs of the LVM this will
+#              hold the list of PVs, for LUKS encrypted volume this will
+#              contain the disk where the volume is placed.     (Linux)
+# @address: disk address information (only for non-virtual devices)
+# @alias: optional alias assigned to the disk, on Linux this is a name assigned
+#         by device mapper
+#
+# Since 5.2
+##
+{ 'struct': 'GuestDiskInfo',
+  'data': {'name': 'str', 'partition': 'bool', 'dependents': ['str'],
+           '*address': 'GuestDiskAddress', '*alias': 'str'} }
+
+##
+# @guest-get-disks:
+#
+# Returns: The list of disks in the guest. For Windows these are only the
+#          physical disks. On Linux these are all root block devices of
+#          non-zero size including e.g. removable devices, loop devices,
+#          NBD, etc.
+#
+# Since: 5.2
+##
+{ 'command': 'guest-get-disks',
+  'returns': ['GuestDiskInfo'] }
+
 ##
 # @GuestFilesystemInfo:
 #