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Re: qemu/powernv: coreboot support?


From: Marty E. Plummer
Subject: Re: qemu/powernv: coreboot support?
Date: Mon, 21 Oct 2019 21:17:55 -0500

On Tue, Oct 22, 2019 at 12:40:32PM +1100, David Gibson wrote:
> On Mon, Oct 21, 2019 at 07:32:09PM -0500, Marty E. Plummer wrote:
> > On that note, is qemu-ppc64 currently capable of running LE
> > firmware?
> 
> Well.. "qemu-ppc64" as such isn't capable of running either LE or
> firmware, since that's the Linux userspace emulator.
> qemu-system-ppc64 *is* capable of running both LE and BE firmwares though.
> 
Ah. yeah, that's what I meant. Good to know.
> Your firmware will, however, need a tiny BE shim to switch the cpu
> into LE mode.
> 
Yeah, I figured as much, and was planning to have a shim available for
'real' hardware in the event a user wants to run coreboot in LE mode
after both work properly (though somewhere in the OpenPOWER spec it is
stated firmware must be BE).
> -- 
> David Gibson                  | I'll have my music baroque, and my code
> david AT gibson.dropbear.id.au        | minimalist, thank you.  NOT _the_ 
> _other_
>                               | _way_ _around_!
> http://www.ozlabs.org/~dgibson





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