Re: [PATCH 4/7] KVM: s390/CPACF: Choose crypto control block format

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Am 04.02.2015 um 14:48 schrieb Paolo Bonzini:
> 
> 
> On 04/02/2015 14:05, Christian Borntraeger wrote:
>>>>
>>>> Could this also be part of the "things" that KVM can choose to enable,
>>>> even though it's not a facility?
>> Can you re-ask that question? Not sure what you want to know. 
>>
>> This is mostly a fixup for z13, which wants to have a bigger control block. but
>> this block is not guest visible.
> 
> Okay, this is what I was asking.  If the block is not guest visible
> that's fine.
> 
> What happens if the guest executes PQAP(QCI)?

It will get an illegal opcode because we dont provide the PQAP instruction 
to the guest. (We  have to provide it, if we want to virtualize the off-cpu
crypto cards - right now we only provide the on-cpu crypto instructions)



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