emulate 64 bit mmx Instructionen

emulate 64 bit mmx Instructionen

[Michael Westermann]

Hello,

when I boot a debian-sarge with kvm and qemu, I get a exeption with the
instruction 06 6f ..... This Instruction is am "movq".
My System is a Dual Opteron 2214.

The debian-installer install's a K7 kernel with a mmx optimising.

I think it is a good idea to handle this instructions in the
x86_emulate modul.

Is it possible to include the mmx-Register set  in the struct kvm.h?

Michael

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Re: emulate 64 bit mmx Instructionen

[Avi Kivity]

Michael Westermann wrote:
> Hello,
>
> when I boot a debian-sarge with kvm and qemu, I get a exeption with the
> instruction 06 6f ..... This Instruction is am "movq".
> My System is a Dual Opteron 2214.
>
> The debian-installer install's a K7 kernel with a mmx optimising.
>
> I think it is a good idea to handle this instructions in the
> x86_emulate modul.
>
> Is it possible to include the mmx-Register set  in the struct kvm.h?
>
>   

It's included, just subtly named: it's vcpu->guest_fx_image.

Some helpers to access mmx registers would be make adding mmx to the
emulator much easier.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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