From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1D3nEo-0002sE-V3 for qemu-devel@nongnu.org; Tue, 22 Feb 2005 22:30:59 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1D3nEn-0002rW-Tf for qemu-devel@nongnu.org; Tue, 22 Feb 2005 22:30:58 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1D3n9T-0001Dd-1M for qemu-devel@nongnu.org; Tue, 22 Feb 2005 22:25:27 -0500 Received: from [62.210.158.46] (helo=teheran.magic.fr) by monty-python.gnu.org with esmtp (Exim 4.34) id 1D3mfY-0004vF-Nv for qemu-devel@nongnu.org; Tue, 22 Feb 2005 21:54:33 -0500 Subject: Re: [Qemu-devel] Re: Re: Open Hack'Ware test image. From: "J. Mayer" In-Reply-To: <1109114060.6488.27.camel@localhost.localdomain> References: <1109072720.21864.13203.camel@rapid> <1109096451.6488.4.camel@localhost.localdomain> <421B80C4.50604@bellard.org> <1109106155.6488.14.camel@localhost.localdomain> <1109114060.6488.27.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-15 Message-Id: <1109127271.13299.313.camel@rapid> Mime-Version: 1.0 Date: Wed, 23 Feb 2005 03:54:31 +0100 Content-Transfer-Encoding: quoted-printable Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: daimon55@free.fr On Wed, 2005-02-23 at 00:14, Thayne Harbaugh wrote: > On Tue, 2005-02-22 at 22:53 +0100, Ronald wrote: > > Le Tue, 22 Feb 2005 14:02:35 -0700, Thayne Harbaugh a =E9crit : > >=20 > > > You shouldn't even worry about making > > > PReP unstable by adding support for the PCI host bridge to either q= emu or > > > OHW because PReP isn't stable now - it doesn't even boot without th= e host > > > bridge. > >=20 > > Sorry but prep works fine for me, that's even the only ppc emulation = mode > > I can use. >=20 > You've applied the "Raven" host bridge patch and it breaks your PReP? >=20 > Until someone can tell me that having a correct PCI host bridge actuall= y > breaks something I'll continue to ask that the patch be applied. I > believe fixes some problems and that even in the working situations it > makes things more correct. Real PReP hardware has a PCI host bridge - > whether it's the Motorola Raven, Eagle, Grackle or whatever. >=20 > If someone can show that having a correct PCI host bridge breaks > something then I'll either rework the patch or drop it. I know that I > have created some broken patches before (HFS comes to mind) and I don't > have a problem rethinking. You're absolutely right, having no PCI host bridge is not correct but should not prevent OSes to run then is not a problem for Linux. There is absolutely no reason that your patch may break anything. It may also help some other OSes to run. The only problem here is that qemu & OpenHackWare have to stay synchronised on this point. As the OHW used in qemu CVS is 0.3 and as it does not recognize Raven bridge, then qemu has to stay with its current configuration or the PCI bus won't get initialized by the BIOS, and this may break the target (even if it's not sure). When OHW 0.4 will be stable and will be committed in qemu CVS, then qemu will have to apply the patch so PREP will still not be broken, for the same reason. In the meantime, people who want to test PREP target with OHW 0.4 preview need to apply the Raven patch to qemu. --=20 J. Mayer Never organized