diff options
| author | Thomas Huth <thuth@redhat.com> | 2021-06-15 11:04:39 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-06-23 14:42:30 +0200 |
| commit | 66c2207fd28a6025792fbb75151ee848b911dc35 (patch) | |
| tree | 5815e6844de7e74f9b6c04eb78be057e886ef587 /qapi/ui.json | |
| parent | ddc717581c2ea45c38423d24f2157572c73b8e75 (diff) | |
ui: Make the DisplayType enum entries conditional
Libvirt's "domcapabilities" command has a way to state whether certain
graphic frontends are available in QEMU or not. Originally, libvirt
looked at the "--help" output of the QEMU binary to determine whether
SDL was available or not (by looking for the "-sdl" parameter in the
help text), but since libvirt stopped doing this analysis of the help
text, the detection of SDL is currently broken, see:
https://bugzilla.redhat.com/show_bug.cgi?id=1790902
QEMU should provide a way via the QMP interface instead. A simple way,
without introducing additional commands, is to make the DisplayType
enum entries conditional, so that the enum only contains the entries if
the corresponding CONFIG_xxx switches have been set. This of course
only gives an indication which possibilities have been enabled during
compile-time of QEMU (and does not take into account whether modules
are later available or not for example - for this we'd need a separate
command), but anyway, this should already be good enough for the above
bug ticket, and it's a good idea anyway to make the QMP interface
conditional here, so let's simply do it.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210615090439.70926-1-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'qapi/ui.json')
| -rw-r--r-- | qapi/ui.json | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/qapi/ui.json b/qapi/ui.json index 90b44c5c5c..fd9677d48e 100644 --- a/qapi/ui.json +++ b/qapi/ui.json @@ -1130,9 +1130,16 @@ # ## { 'enum' : 'DisplayType', - 'data' : [ 'default', 'none', 'gtk', 'sdl', - 'egl-headless', 'curses', 'cocoa', - 'spice-app'] } + 'data' : [ + { 'name': 'default' }, + { 'name': 'none' }, + { 'name': 'gtk', 'if': 'defined(CONFIG_GTK)' }, + { 'name': 'sdl', 'if': 'defined(CONFIG_SDL)' }, + { 'name': 'egl-headless', + 'if': 'defined(CONFIG_OPENGL) && defined(CONFIG_GBM)' }, + { 'name': 'curses', 'if': 'defined(CONFIG_CURSES)' }, + { 'name': 'cocoa', 'if': 'defined(CONFIG_COCOA)' }, + { 'name': 'spice-app', 'if': 'defined(CONFIG_SPICE)'} ] } ## # @DisplayOptions: @@ -1156,9 +1163,13 @@ '*show-cursor' : 'bool', '*gl' : 'DisplayGLMode' }, 'discriminator' : 'type', - 'data' : { 'gtk' : 'DisplayGTK', - 'curses' : 'DisplayCurses', - 'egl-headless' : 'DisplayEGLHeadless'} } + 'data' : { + 'gtk': { 'type': 'DisplayGTK', 'if': 'defined(CONFIG_GTK)' }, + 'curses': { 'type': 'DisplayCurses', 'if': 'defined(CONFIG_CURSES)' }, + 'egl-headless': { 'type': 'DisplayEGLHeadless', + 'if': 'defined(CONFIG_OPENGL) && defined(CONFIG_GBM)' } + } +} ## # @query-display-options: |