Re: [PATCHV2 3/3] x86, ras: Add mcsafe_memcpy() function to recover from machine checks

[Borislav Petkov]

On Tue, Dec 15, 2015 at 10:35:49AM -0800, Dan Williams wrote:
> Correction we have MOVNTDQA, but that requires saving the fpu state
> and marking the memory as WC, i.e. probably not worth it.

Not really. Last time I tried an SSE3 memcpy in the kernel like glibc
does, it wasn't worth it. The enhanced REP; MOVSB is hands down faster.

-- 
Regards/Gruss,
    Boris.

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