38 lines
1.4 KiB
Diff
38 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: Tue, 9 May 2017 12:48:39 +0200
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Subject: [PATCH] vga: fix display update region calculation
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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vga display update mis-calculated the region for the dirty bitmap
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snapshot in case the scanlines are padded. This can triggere an
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assert in cpu_physical_memory_snapshot_get_dirty().
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Fixes: fec5e8c92becad223df9d972770522f64aafdb72
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Reported-by: Kevin Wolf <kwolf@redhat.com>
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Reported-by: 李强 <liqiang6-s@360.cn>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Message-id: 20170509104839.19415-1-kraxel@redhat.com
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---
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hw/display/vga.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/display/vga.c b/hw/display/vga.c
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index b2516c8d21..dcc95f88e2 100644
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--- a/hw/display/vga.c
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+++ b/hw/display/vga.c
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@@ -1630,7 +1630,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
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if (!full_update) {
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vga_sync_dirty_bitmap(s);
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snap = memory_region_snapshot_and_clear_dirty(&s->vram, addr1,
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- bwidth * height,
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+ line_offset * height,
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DIRTY_MEMORY_VGA);
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}
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--
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2.11.0
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