Re: [RFC] x86: xsave/xrstor support, ucontext_t extensions

From: Andi Kleen
Date: Thu May 22 2008 - 04:06:44 EST

> AFAIK the only reason we control the MXCSR value is because we don't
> want to handle a #GP in context switch.

x86-64 actually handles it in context switch, just i386 doesn't.

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