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 [off-list ref]
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/656ad58ef19e2a763fa5c938b2

cheers