[PATCH v3 0/8] Nvram-to-pstore

Aruna Balakrishnaiah aruna at linux.vnet.ibm.com
Thu Apr 25 20:17:55 EST 2013


Currently the kernel provides the contents of p-series NVRAM only as a
simple stream of bytes via /dev/nvram, which must be interpreted in user
space by the nvram command in the powerpc-utils package. This patch set
exploits the pstore subsystem to expose each partition in NVRAM as a
separate file in /dev/pstore. For instance Oops messages will stored in a
file named [dmesg-nvram-2].

Changes from v2:
	- Fix renaming of pstore type ids in nvram.c

Changes from v1:
	- Reduce #ifdefs by and remove forward declarations of pstore callbacks
	- Handle return value of nvram_write_os_partition
	- Remove empty pstore callbacks and register pstore only when pstore
	  is configured
---

Aruna Balakrishnaiah (8):
      powerpc/pseries: Remove syslog prefix in uncompressed oops text
      powerpc/pseries: Add version and timestamp to oops header
      powerpc/pseries: Introduce generic read function to read nvram-partitions
      powerpc/pseries: Read/Write oops nvram partition via pstore
      powerpc/pseries: Read rtas partition via pstore
      powerpc/pseries: Distinguish between a os-partition and non-os partition
      powerpc/pseries: Read of-config partition via pstore
      powerpc/pseries: Read common partition via pstore


 arch/powerpc/platforms/pseries/nvram.c |  353 +++++++++++++++++++++++++++-----
 fs/pstore/inode.c                      |    9 +
 include/linux/pstore.h                 |    4 
 3 files changed, 313 insertions(+), 53 deletions(-)

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