Re: [Qemu-devel] Intel AVX instructions

[Xin Tong]

It seems that BOCHS have AVX instructions support in interpreter. I am
thinking an easy/reliable way to do this would be generate helper
calls to emulate every AVX instruction and follow how BOCHS emulates
them. Then depending on the expected frequency and difficulties, one
can decide whether to move some of the instructions into TCG JITted
code ?

Also, it would be desirable to use the MMX/SSE structures and
functions that already exist in QEMU target-i386/translate.c

please comment.

Xin

On Wed, Jan 22, 2014 at 11:35 AM, Paolo Bonzini <address@hidden> wrote:
> Il 22/01/2014 17:27, Xin Tong ha scritto:
>
>> Intel AVX instructions have been out for some time since sandy-bridge.
>> Is there value to support it in QEMU. I am thinking abut a google
>> summer of code this year to bring support for AVX/AVX2.0 to QEMU.
>
>
> Yes, that can be a nice project indeed!  Of course you are welcome to
> contribute to QEMU even before we submit our GSoC application.  For example,
> it's possible to add XSAVE/XRSTOR support even without AVX support, even
> though there is no real processors with this combination.
>
> Paolo
>
>