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qxl: don't render stuff when the vm is stopped. 

This patch fixes the local qxl renderer to not kick spice-server
in case the vm is stopped.  First it is largely pointless because
we ask spice-server to process all not-yet processed commands when
the vm is stopped, so there isn't much do do anyway.  Second we
avoid triggering an assert in spice-server.

The patch makes sure we still honor redraw requests, even if we don't
ask spice-server for updates.  This is needed to handle displaysurface
changes with a stopped vm correctly.

With this patch applied it is possible to take screen shots (via
screendump monitor command) from a qxl gpu even in case the guest
is stopped.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-02-15 14:04:44 +01:00
parent f4a8a424fc
commit 7844e448d1
1 changed files with 5 additions and 7 deletions
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12
hw/qxl-render.c
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@ -121,19 +121,17 @@ void qxl_render_update(PCIQXLDevice *qxl)
dpy_resize(vga->ds);
}
if (!qxl->guest_primary.commands) {
return;
}
qxl->guest_primary.commands = 0;
update.left = 0;
update.right = qxl->guest_primary.surface.width;
update.top = 0;
update.bottom = qxl->guest_primary.surface.height;
memset(dirty, 0, sizeof(dirty));
qxl_spice_update_area(qxl, 0, &update,
dirty, ARRAY_SIZE(dirty), 1, QXL_SYNC);
if (runstate_is_running() && qxl->guest_primary.commands) {
qxl->guest_primary.commands = 0;
qxl_spice_update_area(qxl, 0, &update,
dirty, ARRAY_SIZE(dirty), 1, QXL_SYNC);
}
if (redraw) {
memset(dirty, 0, sizeof(dirty));
dirty[0] = update;