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powerpc/fadump: reset metadata address during clean up

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During kexec boot, metadata address needs to be reset to avoid running
into errors interpreting stale metadata address, in case the kexec'ed
kernel crashes before metadata address could be setup again.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821346629.5656.10783321582005237813.stgit@hbathini.in.ibm.com
This commit is contained in:
Hari Bathini
2019-09-11 20:21:16 +05:30
committed by Michael Ellerman
parent 742a265acc
commit 2790d01d1e
3 changed files with 17 additions and 0 deletions
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arch/powerpc/include/asm/fadump-internal.h
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@@ -117,6 +117,7 @@ struct fadump_ops {
int (*fadump_register)(struct fw_dump *fadump_conf);
int (*fadump_unregister)(struct fw_dump *fadump_conf);
int (*fadump_invalidate)(struct fw_dump *fadump_conf);
void (*fadump_cleanup)(struct fw_dump *fadump_conf);
int (*fadump_process)(struct fw_dump *fadump_conf);
void (*fadump_region_show)(struct fw_dump *fadump_conf,
struct seq_file *m);