42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
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What: /sys/firmware/opal/dump
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Date: Feb 2014
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Contact: Stewart Smith <stewart@linux.vnet.ibm.com>
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Description:
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This directory exposes interfaces for interacting with
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the FSP and platform dumps through OPAL firmware interface.
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This is only for the powerpc/powernv platform.
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initiate_dump: When '1' is written to it,
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we will initiate a dump.
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Read this file for supported commands.
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0xXX-0xYYYY: A directory for dump of type 0xXX and
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id 0xYYYY (in hex). The name of this
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directory should not be relied upon to
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be in this format, only that it's unique
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among all dumps. For determining the type
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and ID of the dump, use the id and type files.
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Do not rely on any particular size of dump
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type or dump id.
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Each dump has the following files:
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id: An ASCII representation of the dump ID
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in hex (e.g. '0x01')
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type: An ASCII representation of the type of
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dump in the format "0x%x %s" with the ID
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in hex and a description of the dump type
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(or 'unknown').
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Type '0xffffffff unknown' is used when
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we could not get the type from firmware.
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e.g. '0x02 System/Platform Dump'
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dump: A binary file containing the dump.
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The size of the dump is the size of this file.
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acknowledge: When 'ack' is written to this, we will
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acknowledge that we've retrieved the
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dump to the service processor. It will
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then remove it, making the dump
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inaccessible.
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Reading this file will get a list of
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supported actions.
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