From 056ced52b46ff725b79c04813467ce0643c1b878 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Fri, 14 Dec 2018 08:26:42 +0000
Subject: [PATCH 5/5] qapi: add query-display-options command
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RH-Author: Gerd Hoffmann <kraxel@redhat.com>
Message-id: <20181214082642.21878-6-kraxel@redhat.com>
Patchwork-id: 83503
O-Subject: [RHEL8/rhel qemu-kvm PATCH 5/5] qapi: add query-display-options command
Bugzilla: 1652871
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Erik Skultety <eskultet@redhat.com>

Add query-display-options command, which allows querying the qemu
display configuration.  This isn't particularly useful, except it
exposes QAPI type DisplayOptions in query-qmp-schema, so that libvirt
can discover recently added -display parameter rendernode (commit
d4dc4ab133b).  Works around lack of sufficiently powerful command line
introspection.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Tested-by: Erik Skultety <eskultet@redhat.com>
Message-id: 20181122071613.2889-1-kraxel@redhat.com

[ kraxel: reworded commit message as suggested by armbru ]

(cherry picked from commit e1ca8f7e1915496148f6e0ce1f7c2309af013312)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>

Conflicts:
	qapi/ui.json

Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 qapi/ui.json | 13 +++++++++++++
 vl.c         |  6 ++++++
 2 files changed, 19 insertions(+)

diff --git a/qapi/ui.json b/qapi/ui.json
index 3e8aeee..1475867 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -1071,3 +1071,16 @@
                 'egl-headless'   : 'DisplayEGLHeadless',
                 'curses'         : 'DisplayNoOpts',
                 'cocoa'          : 'DisplayNoOpts' } }
+
+##
+# @query-display-options:
+#
+# Returns information about display configuration
+#
+# Returns: @DisplayOptions
+#
+# Since: 3.1
+#
+##
+{ 'command': 'query-display-options',
+  'returns': 'DisplayOptions' }
diff --git a/vl.c b/vl.c
index a4d1e3f..9d32921 100644
--- a/vl.c
+++ b/vl.c
@@ -131,6 +131,7 @@ int main(int argc, char **argv)
 #include "qapi/qapi-commands-block-core.h"
 #include "qapi/qapi-commands-misc.h"
 #include "qapi/qapi-commands-run-state.h"
+#include "qapi/qapi-commands-ui.h"
 #include "qapi/qmp/qerror.h"
 #include "sysemu/iothread.h"
 
@@ -2138,6 +2139,11 @@ static void parse_display_qapi(const char *optarg)
     visit_free(v);
 }
 
+DisplayOptions *qmp_query_display_options(Error **errp)
+{
+    return QAPI_CLONE(DisplayOptions, &dpy);
+}
+
 static void parse_display(const char *p)
 {
     const char *opts;
-- 
1.8.3.1