From: Michael Ellerman <mpe@ellerman•id.au>
To: Oliver O'Halloran <oohall@gmail•com>, linuxppc-dev@lists•ozlabs.org
Cc: Stewart Smith <stewart@linux•vnet.ibm.com>,
Oliver O'Halloran <oohall@gmail•com>,
stable@vger•kernel.org
Subject: Re: [v3] powerpc/boot: Add OPAL console to epapr wrappers
Date: Wed, 6 Jul 2016 00:10:12 +1000 (AEST) [thread overview]
Message-ID: <3rkQkr52fFz9sdn@ozlabs.org> (raw)
In-Reply-To: <1467297277-12494-1-git-send-email-oohall@gmail.com>
On Thu, 2016-30-06 at 14:34:37 UTC, Oliver O'Halloran wrote:
> This patch adds an OPAL console backend to the powerpc boot wrapper so
> that decompression failures inside the wrapper can be reported to the
> user. This is important since it typically indicates data corruption in
> the firmware and other nasty things.
>
> Currently this only works when building a little endian kernel. When
> compiling a 64 bit BE kernel the wrapper is always build 32 bit to be
> compatible with some 32 bit firmwares. BE support will be added at a
> later date. Another limitation of this is that only the "raw" type of
> OPAL console is supported, however machines that provide a hvsi console
> also provide a raw console so this is not an issue in practice.
>
> Actually-written-by: Benjamin Herrenschmidt <benh@kernel•crashing.org>
> Signed-off-by: Oliver O'Halloran <oohall@gmail•com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/656ad58ef19e2a763fa5c938b2
cheers
prev parent reply other threads:[~2016-07-05 14:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-30 14:34 [PATCH v3] powerpc/boot: Add OPAL console to epapr wrappers Oliver O'Halloran
2016-07-05 9:57 ` [v3] " Michael Ellerman
2016-07-05 14:10 ` Michael Ellerman [this message]
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