About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

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

Custom Search

Based on kernel version 4.13.3. Page generated on 2017-09-23 13:54 EST.

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

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.