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Re: [Xen-devel] [PATCH] xen/x86: Adjust stack pointer in xen_sysexit

On 11/16/15 12:22, Borislav Petkov wrote:
> Huh, so what's wrong with a jump:
>       jmp 1f
>       swapgs
>       1:

What is the point of that jump?

>> If it would make you feel better, it could be X86_BUG_XENPV :-p
> That doesn't matter - I just don't want to open the flood gates on
> pseudo feature bits.
> hpa, what do you think?

Pseudo feature bits are fine, we already have plenty of them.  They make
sense as they let us reuse a lot of infrastructure.


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