Messages in this thread | | | Date | Wed, 27 Nov 2013 14:40:04 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] Add a text_poke syscall v2 |
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On 11/27/2013 02:29 PM, Borislav Petkov 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. >
Also don't forget we need the IPIs, too...
-hpa
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