vgabios: Add cirrus linear framebuffer detection; enable VBE in cirrus.

Extract Cirrus framebuffer address from PCI config space.

Enable VBE code for Cirrus cards.

Also, rework bochsvga code to use direct PCI accesses instead of
calling into the BIOS.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
3 files changed
tree: e0f5be587fd9e0613e94e9dc6baf90456ffafb40
  1. .gitignore
  2. COPYING
  3. COPYING.LESSER
  4. Makefile
  5. README
  6. TODO
  7. src/
  8. tools/
  9. vgasrc/