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Linux/Documentation/ABI/stable/sysfs-firmware-opal-dump

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Diff markup

Differences between /Documentation/ABI/stable/sysfs-firmware-opal-dump (Architecture sparc) and /Documentation/ABI/stable/sysfs-firmware-opal-dump (Architecture m68k)


  1 What:           /sys/firmware/opal/dump             1 What:           /sys/firmware/opal/dump
  2 Date:           Feb 2014                            2 Date:           Feb 2014
  3 Contact:        Stewart Smith <stewart@linux.vn      3 Contact:        Stewart Smith <stewart@linux.vnet.ibm.com>
  4 Description:                                        4 Description:
  5                 This directory exposes interfa      5                 This directory exposes interfaces for interacting with
  6                 the FSP and platform dumps thr      6                 the FSP and platform dumps through OPAL firmware interface.
  7                                                     7 
  8                 This is only for the powerpc/p      8                 This is only for the powerpc/powernv platform.
  9                                                     9 
 10                 =============== ==============     10                 =============== ===============================================
 11                 initiate_dump:  When '1' is wr     11                 initiate_dump:  When '1' is written to it,
 12                                 we will initia     12                                 we will initiate a dump.
 13                                 Read this file     13                                 Read this file for supported commands.
 14                                                    14 
 15                 0xXX-0xYYYY:    A directory fo     15                 0xXX-0xYYYY:    A directory for dump of type 0xXX and
 16                                 id 0xYYYY (in      16                                 id 0xYYYY (in hex). The name of this
 17                                 directory shou     17                                 directory should not be relied upon to
 18                                 be in this for     18                                 be in this format, only that it's unique
 19                                 among all dump     19                                 among all dumps. For determining the type
 20                                 and ID of the      20                                 and ID of the dump, use the id and type files.
 21                                 Do not rely on     21                                 Do not rely on any particular size of dump
 22                                 type or dump i     22                                 type or dump id.
 23                 =============== ==============     23                 =============== ===============================================
 24                                                    24 
 25                 Each dump has the following fi     25                 Each dump has the following files:
 26                                                    26 
 27                 =============== ==============     27                 =============== ===============================================
 28                 id:             An ASCII repre     28                 id:             An ASCII representation of the dump ID
 29                                 in hex (e.g. '     29                                 in hex (e.g. '0x01')
 30                 type:           An ASCII repre     30                 type:           An ASCII representation of the type of
 31                                 dump in the fo     31                                 dump in the format "0x%x %s" with the ID
 32                                 in hex and a d     32                                 in hex and a description of the dump type
 33                                 (or 'unknown')     33                                 (or 'unknown').
 34                                 Type '0xffffff     34                                 Type '0xffffffff unknown' is used when
 35                                 we could not g     35                                 we could not get the type from firmware.
 36                                 e.g. '0x02 Sys     36                                 e.g. '0x02 System/Platform Dump'
 37                 dump:           A binary file      37                 dump:           A binary file containing the dump.
 38                                 The size of th     38                                 The size of the dump is the size of this file.
 39                 acknowledge:    When 'ack' is      39                 acknowledge:    When 'ack' is written to this, we will
 40                                 acknowledge th     40                                 acknowledge that we've retrieved the
 41                                 dump to the se     41                                 dump to the service processor. It will
 42                                 then remove it     42                                 then remove it, making the dump
 43                                 inaccessible.      43                                 inaccessible.
 44                                 Reading this f     44                                 Reading this file will get a list of
 45                                 supported acti     45                                 supported actions.
 46                 =============== ==============     46                 =============== ===============================================
                                                      

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