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Re: [Qemu-ppc] [PATCH 11/25] spapr: describe the XIVE interrupt source f

From: Cédric Le Goater
Subject: Re: [Qemu-ppc] [PATCH 11/25] spapr: describe the XIVE interrupt source flags
Date: Sat, 2 Dec 2017 15:50:13 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 12/02/2017 03:48 PM, Benjamin Herrenschmidt wrote:
> On Sat, 2017-12-02 at 15:38 +0100, Cédric Le Goater wrote:
>> Hmm, yes. So, the current design for sPAPR handles all sources 
>> under the same XIVE object with a global memory region for all 
>> the ESBs. 
>> The first RFC had a mechanism to register source objects into 
>> the XIVE main one, allocating the IRQs per source and mapping 
>> the ESBs in the overall region. A bit like OPAL does. I then 
>> simplified for the sake of clarity and merged everything under 
>> the same XIVE object. 
>> Shall I reintroduce multiples sources support ? and provide a 
>> default one for IPIs and virtual devices of the machine. 
> That or you need state bits ;-)

yeah. I started with state bits and thought I could hack the PQ 
ones but that's wrong. 



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