Re: [PATCH v3 05/11] KVM: MMU: do not mark accessed bit on pte writepath

From: Xiao Guangrong
Date: Tue Sep 13 2011 - 14:27:16 EST


On 09/13/2011 06:53 PM, Avi Kivity wrote:
> On 08/30/2011 05:35 AM, Xiao Guangrong wrote:
>> In current code, the accessed bit is always set when page fault occurred,
>> do not need to set it on pte write path
>
> What about speculative sptes that are then only accessed via emulation?
>

The gfn is read and written only via emulation? I think this case is very
very rare?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/