33 lines
1.4 KiB
Diff
33 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Mon, 30 Oct 2017 11:28:30 +0100
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Subject: [PATCH] vga: fix region checks in wraparound case
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Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Message-id: 20171030102830.4469-1-kraxel@redhat.com
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---
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hw/display/vga.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/hw/display/vga.c b/hw/display/vga.c
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index 63ba404ef2..a58d8bcd67 100644
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--- a/hw/display/vga.c
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+++ b/hw/display/vga.c
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@@ -1666,9 +1666,9 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
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/* scanline wraps from end of video memory to the start */
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assert(force_shadow);
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update = memory_region_snapshot_get_dirty(&s->vram, snap,
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- page0, 0);
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+ page0, s->vbe_size - page0);
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update |= memory_region_snapshot_get_dirty(&s->vram, snap,
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- page1, 0);
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+ 0, page1);
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} else {
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update = memory_region_snapshot_get_dirty(&s->vram, snap,
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page0, page1 - page0);
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--
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2.11.0
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