Re: [Xen-devel] [PATCH v2 2/6] x86emul: support BMI2 insns

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 18/01/17 13:31, Jan Beulich wrote:
> Note that the adjustment to the mode_64bit() definition is so that we
> can avoid "#ifdef __x86_64__" around the 64-bit asm() portions. An
> alternative would be single asm()s with a conditional branch over the
> (manually encoded) REX64 prefix.
>
> Note that RORX raising #UD when VEX.VVVV is not all ones is matching
> observed behavior rather than what the SDM says.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

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

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