Re: [PATCH 1/3] x86/entry/64: Refactor IRQ stacks and make then NMI-safe

From: Borislav Petkov
Date: Sat Jul 25 2015 - 00:32:28 EST


On Fri, Jul 24, 2015 at 09:28:47PM -0700, Andy Lutomirski wrote:
> Yeah, I'm going to submit v2 with the simple approach. I admit I'm
> rather fond of xadd as a way to switch rsp and set a flag at the same
> time, though :)

I know you are.

But people will rip your head out if you added 60 cycles to the IRQ
path.

:-)

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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