Re: [Xen-devel] [PATCH] x86emul: support clzero

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 11/01/16 15:55, Aravind Gopalakrishnan wrote:
> On 9/22/2015 8:06 AM, Jan Beulich wrote:
>> ... in anticipation of this possibly going to get used by guests for
>> basic thinks like memset() or clearing or pages.
>>
>> Since the emulation doesn't use clzero itself, checking the guest's
>> CPUID for the feature to be exposed is (intentionally) being avoided
>> here. All that's required is sensible guest side data for the clflush
>> line size.
>>
>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>>
>>
>
> Reviewed-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@xxxxxxx>

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

I would still like to see some instruction documentation as the soonest
possible opportunity, to give the implementation an independent review.

~Andrew

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