path: root/tools/testing/selftests/powerpc
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authorOliver O'Halloran <oohall@gmail.com>2016-07-01 00:34:37 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2016-07-05 23:58:54 +1000
commit656ad58ef19e2a763fa5c938b20ae0f6b8d67242 (patch)
treea7a4cd26f2a0c5e560eb228864bd75c8784afb2f /tools/testing/selftests/powerpc
parentpowerpc/mm: Add a parameter to disable 1TB segs (diff)
powerpc/boot: Add OPAL console to epapr wrappers
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> [mpe: Move #ifdef __powerpc64__ to avoid warnings on 32-bit] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/testing/selftests/powerpc')
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