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From 8c923259c0880336125c05adb5b7e8001776cd79 Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Tue, 5 Mar 2019 08:26:16 +0100
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Subject: [PATCH 8/9] qapi: add query-display-options command
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Gerd Hoffmann <kraxel@redhat.com>
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Message-id: <20190305082617.14614-4-kraxel@redhat.com>
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Patchwork-id: 84795
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O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH 3/4] qapi: add query-display-options command
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Bugzilla: 1648236
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Erik Skultety <eskultet@redhat.com>
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Add query-display-options command, which allows querying the qemu
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display configuration. This isn't particularly useful, except it
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exposes QAPI type DisplayOptions in query-qmp-schema, so that libvirt
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can discover recently added -display parameter rendernode (commit
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d4dc4ab133b). Works around lack of sufficiently powerful command line
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introspection.
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Tested-by: Eric Blake <eblake@redhat.com>
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Tested-by: Erik Skultety <eskultet@redhat.com>
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Message-id: 20181122071613.2889-1-kraxel@redhat.com
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[ kraxel: reworded commit message as suggested by armbru ]
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(cherry picked from commit e1ca8f7e1915496148f6e0ce1f7c2309af013312)
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[ kraxel: No QAPI_CLONE() in rhel-7. So do a manual clone of the
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one essential field: DisplayOptions->type ]
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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qapi/ui.json | 13 +++++++++++++
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vl.c | 9 +++++++++
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2 files changed, 22 insertions(+)
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diff --git a/qapi/ui.json b/qapi/ui.json
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index 3e8aeee..1475867 100644
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--- a/qapi/ui.json
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+++ b/qapi/ui.json
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@@ -1071,3 +1071,16 @@
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'egl-headless' : 'DisplayEGLHeadless',
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'curses' : 'DisplayNoOpts',
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'cocoa' : 'DisplayNoOpts' } }
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+
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+##
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+# @query-display-options:
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+#
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+# Returns information about display configuration
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+#
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+# Returns: @DisplayOptions
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+#
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+# Since: 3.1
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+#
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+##
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+{ 'command': 'query-display-options',
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+ 'returns': 'DisplayOptions' }
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diff --git a/vl.c b/vl.c
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index 713f899..8b79eb9 100644
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--- a/vl.c
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+++ b/vl.c
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@@ -129,6 +129,7 @@ int main(int argc, char **argv)
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#include "qapi/qapi-commands-block-core.h"
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#include "qapi/qapi-commands-misc.h"
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#include "qapi/qapi-commands-run-state.h"
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+#include "qapi/qapi-commands-ui.h"
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#include "qapi/qmp/qerror.h"
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#include "sysemu/iothread.h"
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@@ -2119,6 +2120,14 @@ static void select_vgahw(const char *p)
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}
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}
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+DisplayOptions *qmp_query_display_options(Error **errp)
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+{
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+ DisplayOptions *r = g_new0(DisplayOptions, 1);
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+
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+ r->type = dpy.type;
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+ return r;
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+}
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+
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static void parse_display(const char *p)
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{
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const char *opts;
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--
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1.8.3.1
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