Re: [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes

From: Ingo Molnar
Date: Thu Nov 06 2008 - 04:30:55 EST



* H. Peter Anvin <hpa@xxxxxxxxx> 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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