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authorGerd Hoffmann <kraxel@redhat.com>2017-05-09 12:48:39 +0200
committerGerd Hoffmann <kraxel@redhat.com>2017-05-11 09:50:32 +0200
commitbfc56535f793c557aa754c50213fc5f882e6482d (patch)
tree20827f9ca400d50fdfd0e966596dd46a53da3162 /hw/display/vga.c
parentca7f544123a8cf80524cdb7a4ffc369a660b0c17 (diff)
downloadqemu-bfc56535f793c557aa754c50213fc5f882e6482d.zip
vga: fix display update region calculation
vga display update mis-calculated the region for the dirty bitmap snapshot in case the scanlines are padded. This can triggere an assert in cpu_physical_memory_snapshot_get_dirty(). Fixes: fec5e8c92becad223df9d972770522f64aafdb72 Reported-by: Kevin Wolf <kwolf@redhat.com> Reported-by: 李强 <liqiang6-s@360.cn> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20170509104839.19415-1-kraxel@redhat.com
Diffstat (limited to 'hw/display/vga.c')
-rw-r--r--hw/display/vga.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c
index b2516c8d21..dcc95f88e2 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -1630,7 +1630,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
if (!full_update) {
vga_sync_dirty_bitmap(s);
snap = memory_region_snapshot_and_clear_dirty(&s->vram, addr1,
- bwidth * height,
+ line_offset * height,
DIRTY_MEMORY_VGA);
}