On Thu, Nov 29, 2012 at 01:06:20PM -0800, H. Peter Anvin wrote:
> It doesn't matter in that context, as the surrounding MSR references
> have barriers, but what I'm refering to is the "memory" barrier.
Ok, but the only difference between the two versions is this line:
movl %esi, %ecx # tmp144, ecx
coming from the cpuid_eax() function. So the memory barrier is the same
and in the right place in both cases.
> The value of ECX doesn't matter when EAX=1.
Ok.
--
Regards/Gruss,
Boris.
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