Re: [RFC] de-asmify the x86-64 system call slowpath

[H. Peter Anvin]

On 01/27/2014 02:46 PM, Andy Lutomirski wrote:
> 
> I think that sysret for sigreturn is probably not very interesting.
> On the other hand, sysret for #PF might be a huge win, despite being
> even scarier.
> 

SYSRET for #PF or other exceptions is a nonstarter; register state is
live at that point.

	-hpa


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