Re: [PATCH v4 4/6] KVM: MMU: prefetch ptes when intercepted guest#PF

[Xiao Guangrong]

Marcelo Tosatti wrote:
> On Sat, Jul 03, 2010 at 04:08:42PM +0800, Xiao Guangrong wrote:
>>
>> Marcelo Tosatti wrote:
>>
>>>> +
>>>> +		if (is_rsvd_bits_set(vcpu, gpte, PT_PAGE_TABLE_LEVEL))
>>>> +			break;
>>> BTW, doesnt sync_page also lack reserved bit checking? (unrelated to
>>> this patch).
>>>
>> I think it's not since if EPT is enabled, no unsync page exist, the sync page
>> path can't be trigged. :-)
> 
> What i mean is, why the sync_page path does not require reserved bit
> checking? (EPT disabled).
> 

Oh, i think we should check it, i'll post a patch to fix it.
--
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/