powerpc/fadump: process architected register state data provided by firmware

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Firmware provides architected register state data at the time of crash.
Process this data and build CPU notes to append to ELF core. In case
this data is missing or in unsupported format, at least append crashing
CPU's register data, to have something to work with in the vmcore file.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821367702.5656.5546683836236508389.stgit@hbathini.in.ibm.com

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Hari Bathini 2019-09-11 20:24:50 +05:30 • committed by Michael Ellerman

parent 579ca1a276

commit 5000a17afb

3 changed files with 247 additions and 7 deletions

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4

arch/powerpc/include/asm/fadump-internal.h

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207

arch/powerpc/platforms/powernv/opal-fadump.c

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41

arch/powerpc/platforms/powernv/opal-fadump.h

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