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Re: [Qemu-ppc] [PATCH v3] ppc: introduce CPUPPCState::cpu_dt_id

From: Scott Wood
Subject: Re: [Qemu-ppc] [PATCH v3] ppc: introduce CPUPPCState::cpu_dt_id
Date: Mon, 4 Nov 2013 13:42:28 -0600

On Mon, 2013-11-04 at 10:41 +0100, Alexander Graf wrote:
> What we really have are 3 semantically separate entities:
>   * QEMU internal cpu id
>   * KVM internal cpu id
>   * DT exposed cpu id
> As you have noted, it's a good idea to keep the QEMU internal cpu id
> linear, thus completely separate from the others. The DT exposed cpu id
> should be 100% local to hw/ppc/spapr*.c. I don't think any code outside
> of the DT generation and anything that accesses the "Virtual Processor
> Number" in sPAPR needs to care about the DT cpu id. All that code is
> 100% KVM agnostic.

This patch isn't just for sPAPR...  On e500 the DT cpu id is supposed to
match the MPIC cpu id.


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