Re: [PATCH 04/15] KVM: MMU: cache mmio info on page fault path

From: Alexander Graf
Date: Wed Jun 08 2011 - 05:39:24 EST



On 08.06.2011, at 11:33, Xiao Guangrong wrote:

> On 06/08/2011 05:18 PM, Alexander Graf wrote:
>
>>>
>>> Also, when context switched, CR3 is reloaded, mmio cache info can be cleared too. right? :-)
>>
>> Only when using SPT. In the NPT case, you will never see cr3 getting reloaded or INVLPG :).
>>
>
> In the NPT case, we only cache the GPA, GVA is not cached (vcpu.arch.mmio_gva is always 0) ;-)

Ah, very nice! :)


Alex

--
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/