File 0149-vga-fix-display-update-region-calcu.patch of Package qemu-linux-user

Overview Repositories Revisions Requests Users Attributes Meta

File 0149-vga-fix-display-update-region-calcu.patch of Package qemu-linux-user

From 08ac3545ea3737563da2676d5621f97a54bce767 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 9 May 2017 12:48:39 +0200
Subject: [PATCH] vga: fix display update region calculation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

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
(cherry picked from commit bfc56535f793c557aa754c50213fc5f882e6482d)
[BR: Support for BSC#1084604 (and other useful vga fixes)]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/display/vga.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/display/vga.c b/hw/display/vga.c
index 4d8e8f6f68..4c5b327220 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -1633,7 +1633,7 @@ 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);
     }

Places

File 0149-vga-fix-display-update-region-calcu.patch of Package qemu-linux-user

Places