[Xen-devel] Re: [PATCH][RFC] Emulating real mode with x86_emulate

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Andi Kleen wrote:
> Anthony Liguori <aliguori@xxxxxxxxxx> writes:
>
>   
> > Attached is a patch that begins to lay down the infrastructure for
> > emulating real mode with x86_emulate().  With a little more
> > refactoring, I think it could also replace the SVM emulator.
> >     
> I thought the roadmap direction of this was to migrate the context
> into qemu and let its JIT handle it? Or has that been dropped?
>   
There are some hard problems with migrating into QEMU.  Namely, the code 
that QEMU generates isn't SMP safe (atomic instructions lose their 
atomicity).
Regards,

Anthony Liguori

> -Andi
>   

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