[Qemu-devel] Bochs BIOS and VGABIOS changes

[Volker Ruppert <info@vruppert.de>]

Hi all!

There are some changes present in the Bochs BIOS and the LGPL'd VGABIOS that 
might be interesting for Qemu. Parts of the Bochs BIOS changes seem to be 
present in your patch queue. The VGABIOS changes require some changes in your 
Bochs VBE support. Here is the list of changes:

Bochs BIOS:
- implemented MTRR support in the bios. This is a combination of the
  individual patches from the kvm tree. The code was written by Avi Kivity and
  Alex Williamson. Sebastian Herbszt added checks for CPUID_MTRR and
  CPUID_MSR.

LGPL'd VGABIOS:
- use VBE LFB address from PCI base address if present (rewrite of the cirrus
  specific function in main vgabios code)
- added support for a lot more non-standard VBE modes (e.g. widescreen modes)
- requires latest Bochs VBE code (16 MB video memory, VBE_DISPI_ID5, VRAM size
  in 64k pages stored in VBE register)
- check if VBE mode is supported with current VRAM size

--
Thanks

Volker