[v3] powerpc/boot: Add OPAL console to epapr wrappers

Michael Ellerman mpe at ellerman.id.au
Wed Jul 6 00:10:12 AEST 2016

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 at kernel.crashing.org>
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>

Applied to powerpc next, thanks.



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