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vga: bugfixes for 2.11 

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Merge remote-tracking branch 'remotes/kraxel/tags/vga-20171110-pull-request' into staging

vga: bugfixes for 2.11

# gpg: Signature made Fri 10 Nov 2017 13:26:30 GMT
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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-20171110-pull-request:
  vmsvga: use ARRAY_SIZE macro
  vga: fix region checks in wraparound case
  virtio-gpu: fix bug in host memory calculation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-11-13 14:33:29 +00:00
parent 7edaf99759 cf7040e284
commit 4e8a737c09
3 changed files with 18 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/display/vga.c
View File

@ -1666,9 +1666,9 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
/* scanline wraps from end of video memory to the start */
assert(force_shadow);
update = memory_region_snapshot_get_dirty(&s->vram, snap,
page0, 0);
page0, s->vbe_size - page0);
update |= memory_region_snapshot_get_dirty(&s->vram, snap,
page1, 0);
0, page1);
} else {
update = memory_region_snapshot_get_dirty(&s->vram, snap,
page0, page1 - page0);

16
hw/display/virtio-gpu.c
View File

@ -322,6 +322,18 @@ static pixman_format_code_t get_pixman_format(uint32_t virtio_gpu_format)
}
}
static uint32_t calc_image_hostmem(pixman_format_code_t pformat,
uint32_t width, uint32_t height)
{
/* Copied from pixman/pixman-bits-image.c, skip integer overflow check.
* pixman_image_create_bits will fail in case it overflow.
*/
int bpp = PIXMAN_FORMAT_BPP(pformat);
int stride = ((width * bpp + 0x1f) >> 5) * sizeof(uint32_t);
return height * stride;
}
static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd)
{
@ -366,7 +378,7 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
return;
}
res->hostmem = PIXMAN_FORMAT_BPP(pformat) * c2d.width * c2d.height;
res->hostmem = calc_image_hostmem(pformat, c2d.width, c2d.height);
if (res->hostmem + g->hostmem < g->conf.max_hostmem) {
res->image = pixman_image_create_bits(pformat,
c2d.width,
@ -1087,7 +1099,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
return -EINVAL;
}
res->hostmem = PIXMAN_FORMAT_BPP(pformat) * res->width * res->height;
res->hostmem = calc_image_hostmem(pformat, res->width, res->height);
res->addrs = g_new(uint64_t, res->iov_cnt);
res->iov = g_new(struct iovec, res->iov_cnt);

5
hw/display/vmware_vga.c
View File

@ -679,10 +679,9 @@ static void vmsvga_fifo_run(struct vmsvga_state_s *s)
if (cursor.width > 256
|| cursor.height > 256
|| cursor.bpp > 32
|| SVGA_BITMAP_SIZE(x, y)
> sizeof(cursor.mask) / sizeof(cursor.mask[0])
|| SVGA_BITMAP_SIZE(x, y) > ARRAY_SIZE(cursor.mask)
|| SVGA_PIXMAP_SIZE(x, y, cursor.bpp)
> sizeof(cursor.image) / sizeof(cursor.image[0])) {
> ARRAY_SIZE(cursor.image)) {
goto badcmd;
}