[Lguest] [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes
Ingo Molnar
mingo at elte.hu
Thu Nov 6 20:30:20 EST 2008
* H. Peter Anvin <hpa at zytor.com> wrote:
> Ingo Molnar wrote:
>>
>> yes, the accessed bit in the segment descriptor has to be updated
>> in an atomic transaction: the CPU has to do a MESI coherent
>> read+compare+write transaction, without damaging other updates to
>> the 6 bytes segment descriptor.
>
> 8 bytes, rather.
heh, yes of course :-)
Ingo
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