[RFC PATCH 1/2] powerpc/xive: guest exploitation of the XIVE interrupt controller

[Cédric Le Goater]

On 07/03/2017 05:55 AM, David Gibson wrote:
> On Thu, Jun 22, 2017 at 11:29:16AM +0200, Cédric Le Goater wrote:
>> This is the framework for using XIVE in a PowerVM guest. The support
>> is very similar to the native one in a much simpler form.
>>
>> Instead of OPAL calls, a set of Hypervisors call are used to configure
>> the interrupt sources and the event/notification queues of the guest:
>>
>>    H_INT_GET_SOURCE_INFO
>>    H_INT_SET_SOURCE_CONFIG
>>    H_INT_GET_SOURCE_CONFIG
>>    H_INT_GET_QUEUE_INFO
>>    H_INT_SET_QUEUE_CONFIG
>>    H_INT_GET_QUEUE_CONFIG
>>    H_INT_RESET
>>
>> Calls that still need to be addressed :
>>
>>    H_INT_SET_OS_REPORTING_LINE
>>    H_INT_GET_OS_REPORTING_LINE
>>    H_INT_ESB
>>    H_INT_SYNC
> 
> So, does this mean there's a PAPR update with the XIVE virtualization
> stuff?  Or at least an ACR?  Can we have that available please...

The QEMU patchset has some initial info on the hcalls : 

	http://patchwork.ozlabs.org/patch/784785/

C.