Re: [PATCH 4/4] x86/cpu: Use SERIALIZE in sync_core() when available

[hpa]

On July 27, 2020 1:20:03 AM PDT, peterz@xxxxxxxxxxxxx wrote:
>On Sun, Jul 26, 2020 at 09:31:32PM -0700, Ricardo Neri wrote:
>> +static inline void serialize(void)
>> +{
>> +	asm volatile(".byte 0xf, 0x1, 0xe8");
>> +}
>
>Can we pretty please have a comment with the binutils version that has
>the mnomic? Such that when we increase the required binutils version we
>can grep for this.

It also needs : : : "memory" to be a barrier.
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