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vga: disable global_vmstate, virtio-gpu scanout tracking fixes.

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Merge remote-tracking branch 'remotes/kraxel/tags/vga-20180703-pull-request' into staging

vga: disable global_vmstate, virtio-gpu scanout tracking fixes.

# gpg: Signature made Tue 03 Jul 2018 10:44:56 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20180703-pull-request:
  vga: disable global_vmstate for 3.0+ machine types
  virtio-gpu: disable scanout when backing resource is destroyed
  virtio-gpu: update old resource too.
  virtio-gpu: tweak scanout disable.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/display/qxl.c
#	hw/display/vga-isa-mm.c
This commit is contained in:
Peter Maydell 2018-07-03 21:09:27 +01:00
commit 79c2b203a9
11 changed files with 84 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

64
hw/display/virtio-gpu.c
View file

@ -400,9 +400,47 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
g->hostmem += res->hostmem;
}
static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
{
struct virtio_gpu_scanout *scanout = &g->scanout[scanout_id];
struct virtio_gpu_simple_resource *res;
DisplaySurface *ds = NULL;
if (scanout->resource_id == 0) {
return;
}
res = virtio_gpu_find_resource(g, scanout->resource_id);
if (res) {
res->scanout_bitmask &= ~(1 << scanout_id);
}
if (scanout_id == 0) {
/* primary head */
ds = qemu_create_message_surface(scanout->width ?: 640,
scanout->height ?: 480,
"Guest disabled display.");
}
dpy_gfx_replace_surface(scanout->con, ds);
scanout->resource_id = 0;
scanout->ds = NULL;
scanout->width = 0;
scanout->height = 0;
}
static void virtio_gpu_resource_destroy(VirtIOGPU *g,
struct virtio_gpu_simple_resource *res)
{
int i;
if (res->scanout_bitmask) {
for (i = 0; i < g->conf.max_outputs; i++) {
if (res->scanout_bitmask & (1 << i)) {
virtio_gpu_disable_scanout(g, i);
}
}
}
pixman_image_unref(res->image);
virtio_gpu_cleanup_mapping(res);
QTAILQ_REMOVE(&g->reslist, res, next);
@ -563,7 +601,7 @@ static void virtio_unref_resource(pixman_image_t *image, void *data)
static void virtio_gpu_set_scanout(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd)
{
struct virtio_gpu_simple_resource *res;
struct virtio_gpu_simple_resource *res, *ores;
struct virtio_gpu_scanout *scanout;
pixman_format_code_t format;
uint32_t offset;
@ -584,24 +622,7 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
g->enable = 1;
if (ss.resource_id == 0) {
scanout = &g->scanout[ss.scanout_id];
if (scanout->resource_id) {
res = virtio_gpu_find_resource(g, scanout->resource_id);
if (res) {
res->scanout_bitmask &= ~(1 << ss.scanout_id);
}
}
if (ss.scanout_id == 0) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: illegal scanout id specified %d",
__func__, ss.scanout_id);
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
return;
}
dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, NULL);
scanout->ds = NULL;
scanout->width = 0;
scanout->height = 0;
virtio_gpu_disable_scanout(g, ss.scanout_id);
return;
}
@ -654,6 +675,11 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, scanout->ds);
}
ores = virtio_gpu_find_resource(g, scanout->resource_id);
if (ores) {
ores->scanout_bitmask &= ~(1 << ss.scanout_id);
}
res->scanout_bitmask |= (1 << ss.scanout_id);
scanout->resource_id = ss.resource_id;
scanout->x = ss.r.x;