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path: root/system/xen/patches/xsa179-qemuu-4.6-0004-vga-update-vga-register-setup-on-vbe-changes.patch
blob: 0638edb91be8be3f163a01d0ab3a204dfd3fbb13 (plain)
From ef8bd1b26a597ae7c306227655626640093cb7a2 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 26 Apr 2016 15:39:22 +0200
Subject: [PATCH 4/5] 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>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
---
 hw/display/vga.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/display/vga.c b/hw/display/vga.c
index fb822f4..3739758 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -762,6 +762,7 @@ 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;
-- 
1.9.1