When pel panning is active, one more byte is read from each of the VGA
memory planes. This has to be accounted in the computation of region_end,
otherwise vga_draw_graphic() fails an assertion:
qemu-system-i386: ../system/physmem.c:946: cpu_physical_memory_snapshot_get_dirty:
Assertion `start + length <= snap->end' failed.
Reported-by: Helge Konetzka <hk@zapateado.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2244
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/display/vga.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)