From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Wed, 8 Jul 2020 11:57:53 +0200
Subject: [PATCH] PVE: add query_proxmox_support QMP command

Generic interface for future use, currently used for PBS dirty-bitmap
backup support.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[PVE: query-proxmox-support: include library version]
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
---
 pve-backup.c         |  9 +++++++++
 qapi/block-core.json | 29 +++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/pve-backup.c b/pve-backup.c
index e113ab61b9..9318ca4f0c 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -1072,3 +1072,12 @@ BackupStatus *qmp_query_backup(Error **errp)
 
     return info;
 }
+
+ProxmoxSupportStatus *qmp_query_proxmox_support(Error **errp)
+{
+    ProxmoxSupportStatus *ret = g_malloc0(sizeof(*ret));
+    ret->pbs_library_version = g_strdup(proxmox_backup_qemu_version());
+    ret->pbs_dirty_bitmap = true;
+    ret->pbs_dirty_bitmap_savevm = true;
+    return ret;
+}
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 45b63dfe26..8b0e0d92de 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -863,6 +863,35 @@
 ##
 { 'command': 'backup-cancel' }
 
+##
+# @ProxmoxSupportStatus:
+#
+# Contains info about supported features added by Proxmox.
+#
+# @pbs-dirty-bitmap: True if dirty-bitmap-incremental backups to PBS are
+#                    supported.
+#
+# @pbs-dirty-bitmap-savevm: True if 'dirty-bitmaps' migration capability can
+#                           safely be set for savevm-async.
+#
+# @pbs-library-version: Running version of libproxmox-backup-qemu0 library.
+#
+##
+{ 'struct': 'ProxmoxSupportStatus',
+  'data': { 'pbs-dirty-bitmap': 'bool',
+            'pbs-dirty-bitmap-savevm': 'bool',
+            'pbs-library-version': 'str' } }
+
+##
+# @query-proxmox-support:
+#
+# Returns information about supported features added by Proxmox.
+#
+# Returns: @ProxmoxSupportStatus
+#
+##
+{ 'command': 'query-proxmox-support', 'returns': 'ProxmoxSupportStatus' }
+
 ##
 # @BlockDeviceTimedStats:
 #
