Re: [PATCH 5/5] KVM: s390: Add support for channel I/O instructions.

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On 07.12.2012, at 13:30, Cornelia Huck wrote:

> Add a new capability, KVM_CAP_S390_CSS_SUPPORT, which will pass
> intercepts for channel I/O instructions to userspace. Only I/O
> instructions interacting with I/O interrupts need to be handled
> in-kernel:
> 
> - TEST PENDING INTERRUPTION (tpi) dequeues and stores pending
>  interrupts entirely in-kernel.
> - TEST SUBCHANNEL (tsch) dequeues pending interrupts in-kernel
>  and exits via KVM_EXIT_S390_TSCH to userspace for subchannel-
>  related processing.
> 
> Reviewed-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
> Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>

Reviewed-by: Alexander Graf <agraf@xxxxxxx>


Alex

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