Re: [PATCH] Add a text_poke syscall v2

H. Peter Anvin
2013-11-27T22:32:07Z

No, we're not... sysexit/sysret doesn't count.

Borislav Petkov <bp@alien8.de> wrote:
>On Wed, Nov 27, 2013 at 02:25:29PM -0800, H. Peter Anvin wrote:
>> Actually the CPUID is superfluous on anything than the executing CPU
>> since IRET is serializing.
>
>Why not on the executing core too? We're IRET-ting there too.
>
>Which would mean that a dummy empty syscall would be enough too since
>we
>need the serialization only.

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