On 18.07.2011, at 23:56, Scott Wood wrote:

> On Mon, 18 Jul 2011 23:49:57 +0200
> Alexander Graf <[email protected]> wrote:
> 
>> 
>> On 18.07.2011, at 23:43, Scott Wood wrote:
>> 
>>> On Mon, 18 Jul 2011 23:37:50 +0200
>>> Alexander Graf <[email protected]> wrote:
>>> 
>>>> I guess I'm merely not understanding why we have the non-way bits set in 
>>>> TLB0 entries, but not in TLB1 ones :). Do we pass in the real array index?
>>> 
>>> KVM internally uses the full TLB index (and unfortunately calls it esel) in
>>> some places, such as kvmppc_e500_tlb_index.  But we don't want to leak that
>>> to the guest.
>> 
>> That's what I figured. So can we guarantee that internally esel for TLB1 is 
>> always < TLB1_NUM_ENTRIES? If so, we don't need to mask it. If not, we 
>> should.
> 
> Yes, kvmppc_e500_tlb_index will always return an entry number that is less
> than the number of entries in that tlb.

Ok :). Good then. Slightly confusing code though ;).


Alex

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