diff options
| author | Hari Bathini <hbathini@linux.vnet.ibm.com> | 2019-09-11 20:26:33 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-09-14 00:04:45 +1000 |
| commit | 6f713d18144ce86c9f01cdf64222d6339e26129e (patch) | |
| tree | f27f63ee129d15bc3d226baa0b8564213d956a01 /arch/powerpc/Kconfig | |
| parent | 58cf055df47bb115e7c1533eec2a8f66639b80e3 (diff) | |
| download | lwn-6f713d18144ce86c9f01cdf64222d6339e26129e.tar.gz lwn-6f713d18144ce86c9f01cdf64222d6339e26129e.zip | |
powerpc/opalcore: export /sys/firmware/opal/core for analysing opal crashes
Export /sys/firmware/opal/core file to analyze opal crashes. Since OPAL
core can be generated independent of CONFIG_FA_DUMP support in kernel,
add this support under a new kernel config option CONFIG_OPAL_CORE.
Also, avoid code duplication by moving common code used while exporting
/proc/vmcore and/or /sys/firmware/opal/core file(s).
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821378503.5656.3693769384945087756.stgit@hbathini.in.ibm.com
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 62c483133953..eea6d5095f71 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -592,6 +592,15 @@ config PRESERVE_FA_DUMP memory preserving kernel boot would process this crash data. Petitboot kernel is the typical usecase for this option. +config OPAL_CORE + bool "Export OPAL memory as /sys/firmware/opal/core" + depends on PPC64 && PPC_POWERNV + help + This option uses the MPIPL support in firmware to provide an + ELF core of OPAL memory after a crash. The ELF core is exported + as /sys/firmware/opal/core file which is helpful in debugging + OPAL crashes using GDB. + config IRQ_ALL_CPUS bool "Distribute interrupts on all CPUs by default" depends on SMP |