vgabios: Add support for manipulating framebuffers in high memory.

Add code for manipulating "direct" style linear RGB framebuffers that
may be in high memory.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/vgasrc/vgabios.h b/vgasrc/vgabios.h
index 73c06974..8fe65d4c 100644
--- a/vgasrc/vgabios.h
+++ b/vgasrc/vgabios.h
@@ -60,6 +60,7 @@ struct vgamode_s {
 struct gfx_op {
     struct vgamode_s *vmode_g;
     u32 linelength;
+    u32 displaystart;
 
     u8 op;
     u16 x, y;