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Re: [Qemu-devel] [PATCH RFC V2 1/4] Use Aff1 with mpidr

From: Pavel Fedin
Subject: Re: [Qemu-devel] [PATCH RFC V2 1/4] Use Aff1 with mpidr
Date: Fri, 22 May 2015 09:49:18 +0300


> The GIC-500 provides registers for managing interrupt sources, interrupt 
> behavior, and interrupt
> routing to one or more cores. It supports:
> • Multiprocessor environments with up to 128 cores.
> • Up to 32 affinity-level 1 clusters.
> • Up to eight cores for each cluster.

> I guess your hardware uses different GIC.

 Heh, yes, looks like that. And perhaps it's somewhat non-standard...
 I will study kvmtool and try to come up with some good solution.

 By the way, since you're referring to documentation... TRM you have mentioned 
contains references to "GIC architecture reference manual v3.0", which i was 
unable to find. On ARM resource center i see only v2 of the manual. And it 
looks like you have it because otherwise you would not get description of many 
registers. Can you point me at a correct place ?

Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia

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