Fix memory dirty getting API change fallout

Fix confusion in length calculation in commit
cd7a45c95ecf2404810f3c6becb7cb83c5010ad8.

Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/vga.c b/hw/vga.c
index d87c4f9f5b..d27700d41b 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -1779,7 +1779,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
         }
         page0 = addr;
         page1 = addr + bwidth - 1;
-        update = memory_region_get_dirty(&s->vram, page0, page1,
+        update = memory_region_get_dirty(&s->vram, page0, page1 - page0,
                                          DIRTY_MEMORY_VGA);
         /* explicit invalidation for the hardware cursor */
         update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;