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authorGerd Hoffmann <kraxel@redhat.com>2017-10-30 11:28:30 +0100
committerGerd Hoffmann <kraxel@redhat.com>2017-11-10 11:26:55 +0100
commit115788d7a70e9ae255511ca00fc69cce06967472 (patch)
treef954dfc486aef59e29c5a67b10c946d021a9d7de /hw/display/vga.c
parentc53f5b89f19b3051384d202dd750d23fb38f0994 (diff)
vga: fix region checks in wraparound case
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20171030102830.4469-1-kraxel@redhat.com
Diffstat (limited to 'hw/display/vga.c')
-rw-r--r--hw/display/vga.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c
index 1d19f6bc48..a64a0942da 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -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);