Re: [Xen-devel] [PATCH v2 2/3] x86: use optimal NOPs to fill the SMEP/SMAP placeholders

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 10/03/16 09:54, Jan Beulich wrote:
> Alternatives patching code picks the most suitable NOPs for the
> running system, so simply use it to replace the pre-populated ones.
>
> Use an arbitrary, always available feature to key off from, but
> hide this behind the new X86_FEATURE_ALWAYS.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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