Re: [PATCH] Add a text_poke syscall v2

Borislav Petkov
2013-11-27T22:21:15Z

On Wed, Nov 27, 2013 at 02:02:50PM -0800, H. Peter Anvin wrote:
> For the record, this is the entire patch necessary to do the
> sync_cores() system call -- and no potential interactions with security
> frameworks or whatnot, simply because no security-sensitive operations
> are performed of any kind.
>
> Comments/opinions appreciated.

And we do this in the kernel not because userspace can't execute
sync_core() aka CPUID but because for userspace it is hard to IPI all
cores easily?

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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