Re: [PATCH] implement pop reg in x86_emulate

H. Peter Anvin
2007-06-08T18:03:04Z

> Hi Peter,
> I see SuSE has taken a fail back path to the code so the
> releases after 10.3 detects the presence of VMM and avoid the big real
> mode path.
> I think people from SuSE should be able to confirm it better for you.

Big real mode is evil in the extreme no matter how you slice it. It
breaks things all over the place, including BIOSes.

People seem to use it because they think it's safe to call the BIOS from
BRM, it's not. Once you realize that you realize that you might as well
do proper PM and avoid the 67 prefixes.