vga: update vga register setup on vbe changes

Call the new vbe_update_vgaregs() function on vbe configuration
changes, to make sure vga registers are up-to-date.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
[Backport to qemu-xen-tradition]
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/hw/vga.c b/hw/vga.c
index dba93d78015bbc5f938c51b609160fbee9cfa911..b1b501b90cc669cb8088077b3a082970ec2b9c7a 100644 (file)
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -729,6 +729,7 @@ static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val)
         case VBE_DISPI_INDEX_Y_OFFSET:
             s->vbe_regs[s->vbe_index] = val;
             vbe_fixup_regs(s);
+            vbe_update_vgaregs(s);
             break;
         case VBE_DISPI_INDEX_BANK:
             val &= s->vbe_bank_mask;