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From: Jeremy Kerr <jk@ozlabs.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 4/4] powerpc/boot: don't clobber r6 and r7 in epapr boot
Date: Wed, 11 Feb 2015 12:27:07 +0800	[thread overview]
Message-ID: <54DADA1B.4060009@ozlabs.org> (raw)
In-Reply-To: <1423620585.5891.22.camel@kernel.crashing.org>

Hi Ben,

> You might want to also remove the use of r8 and r9 which are supposed
> to contain the OPAL entry and base for debugging purposes. We would also
> have to restore them before booting the kernel.

I'd prefer that to be a separate change, if that's okay - it'd require
us to change the kentry prototype, and would percolate to epapr_platform
init too.

Cheers,


Jeremy

  reply	other threads:[~2015-02-11  4:27 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-10 12:15 [PATCH 1/4] powerpc/boot/fdt: Add little-endian support to libfdt wrappers Jeremy Kerr
2015-02-10 12:15 ` [PATCH 2/4] powerpc/boot/wrapper: use the pseries wrapper for zImage.epapr Jeremy Kerr
2015-02-11  2:12   ` Benjamin Herrenschmidt
2015-02-11  2:16     ` Jeremy Kerr
2015-02-11  2:20       ` Benjamin Herrenschmidt
2015-02-10 12:15 ` [PATCH 3/4] powerpc/boot: Fix stack corruption in epapr entry point Jeremy Kerr
2015-02-11  2:11   ` Benjamin Herrenschmidt
2015-02-10 12:15 ` [PATCH 4/4] powerpc/boot: don't clobber r6 and r7 in epapr boot Jeremy Kerr
2015-02-11  2:09   ` Benjamin Herrenschmidt
2015-02-11  4:27     ` Jeremy Kerr [this message]
2015-02-11  4:50       ` Benjamin Herrenschmidt
2015-02-11  2:11 ` [PATCH 1/4] powerpc/boot/fdt: Add little-endian support to libfdt wrappers Benjamin Herrenschmidt

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