Re: [PATCH] implement pop reg in x86_emulate

Kamble, Nitin A
2007-06-08T17:59:07Z

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.

Thanks & Regards,
Nitin

Linux Open Source Technology Center
Intel Corporation, Santa Clara, CA

-----Original Message-----
From: H. Peter Anvin [mailto:hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org]
Sent: Friday, June 08, 2007 10:50 AM
To: Kamble, Nitin A
Cc: kvm-devel
Subject: Re: [kvm-devel] [PATCH] implement pop reg in x86_emulate

Kamble, Nitin A wrote:
> On Thu, 2007-06-07 at 20:52 -0700, H. Peter Anvin wrote:
>> Kamble, Nitin A wrote:
>> > Hi Avi,
>> > I am in the middle of implementing the big real support in the
KVM
>> > now. I am trying to boot SuseLinux 10.1 on KVM, which uses
extensive big
>> > real mode code in the boot loader.
>>
>> Ye gods, what boot loader is that?
>>
> SuSE has added their own extension to the syslinux bootloade for the
> fancy graphics animation screen at the boot time, the syslinux code is
> written in real mode code, but they needed more than 1MB memory access
> for the graphics memory access, and they are using the big real mode
for
> accessing more than 1MB there.

Oh gawd. Wow. You've just told me yet another reason why I will not
EVER merge the gfxboot patch into stock syslinux.