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From: David Gibson <david@gibson.dropbear.id.au>
To: "Marty E. Plummer" <hanetzer@startmail.com>
Cc: qemu-ppc@nongnu.org, "Cédric Le Goater" <clg@kaod.org>,
	qemu-devel@nongnu.org
Subject: Re: qemu/powernv: coreboot support?
Date: Sat, 19 Oct 2019 22:15:19 +1100	[thread overview]
Message-ID: <20191019111519.GE1960@umbus.fritz.box> (raw)
In-Reply-To: <20191018172622.kz4smemh5cwesfit@proprietary-killer>

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On Fri, Oct 18, 2019 at 12:28:29PM -0500, Marty E. Plummer wrote:
> Hello,
> 
> First off, thank you for the work you've done on the ppc64 support, it
> has been very useful. I'm currently working on a coreboot port for the
> talos ii line of systems (which means more ppc64 support, support
> specifically for the power9 sforza chip, and specific mainboard support.
> My plate is very full lol) and have been using qemu to debug the
> bootblock.

Ok.  I'm assuming that's with the powernv machine type?

> It has been very useful for that, but I'm now at the point where I need
> to jump to romstage, and that's where it gets tricky. qemu parses the rom
> image and looks for a ffs header, locates skiboot on it, and jumps straight
> to that. Not exactly ideal for debugging something not produced from
> op-build.

Um.. I'm not sure what code you're talking about.  AFAICT the pnv code
just starts the cpus at address 0x10.

> Do you think it would be within your wheelhouse to provide a generic, non-ffs
> pnor interface for loading arbitary rom images? It would be of great help if
> you could. (This would still hopefully have the bmc support code as
> well, as I'm still needing to support a system using one).

Uh.. and I'm not really sure what you're asking for here.

-- 
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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  reply	other threads:[~2019-10-19 11:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-18 17:28 qemu/powernv: coreboot support? Marty E. Plummer
2019-10-19 11:15 ` David Gibson [this message]
2019-10-19 12:28   ` Marty E. Plummer
2019-10-19 13:46 ` Cédric Le Goater
2019-10-19 15:31   ` Marty E. Plummer
2019-10-19 15:53     ` Cédric Le Goater
2019-10-19 16:09       ` Marty E. Plummer
2019-10-20  6:28         ` David Gibson
2019-10-20  6:51           ` Cédric Le Goater
2019-10-20 16:32             ` Marty E. Plummer
2019-10-21  5:34             ` David Gibson
2019-10-21 12:46               ` Cédric Le Goater
2019-10-22  0:32                 ` Marty E. Plummer
2019-10-22  1:40                   ` David Gibson
2019-10-22  2:17                     ` Marty E. Plummer
2019-10-22  7:55                       ` David Gibson
2019-10-22  7:58                   ` Cédric Le Goater
2019-10-23 21:41                     ` Marty E. Plummer
2019-10-19 18:51       ` Marty E. Plummer
2019-10-19 19:23       ` Marty E. Plummer
2019-10-20 19:48         ` Peter Maydell
2019-10-21  9:51           ` Philippe Mathieu-Daudé
2019-10-20  6:26     ` David Gibson
2019-10-20  6:24   ` David Gibson

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