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

[Scott Wood]

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.

-Scott