From: Huang Ying <ying.huang@intel.com>
To: lenb@kernel.org
Cc: linux-kernel@vger.kernel.org, ying.huang@intel.com,
andi@firstfloor.org, linux-acpi@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 05/12] ACPI, APEI, Document for APEI
Date: Tue, 27 Apr 2010 14:41:14 +0800 [thread overview]
Message-ID: <1272350481-27951-6-git-send-email-ying.huang@intel.com> (raw)
In-Reply-To: <1272350481-27951-1-git-send-email-ying.huang@intel.com>
Add document for APEI, including kernel parameters and EINJ debug file
sytem interface.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
Documentation/acpi/apei/einj.txt | 49 ++++++++++++++++++++++++++++++++++++
Documentation/kernel-parameters.txt | 5 +++
2 files changed, 54 insertions(+)
create mode 100644 Documentation/acpi/apei/einj.txt
--- /dev/null
+++ b/Documentation/acpi/apei/einj.txt
@@ -0,0 +1,49 @@
+ APEI Error INJection
+ ~~~~~~~~~~~~~~~~~~~~
+
+EINJ provides a hardware error injection mechanism, it is very useful
+for debugging and testing of other APEI and RAS features.
+
+To use EINJ, make the following is enabled in your kernel
+configuration:
+
+CONFIG_DEBUG_FS
+CONFIG_ACPI_APEI
+CONFIG_ACPI_APEI_EINJ
+
+The user interface of EINJ is in debug file system, under the
+directory apei/einj. The following files are provided.
+
+- available_error_type
+ Read this file will return the error injection capability of the
+ platform, that is, which error types are supported. The error type
+ definition is as follow, the left field is the error type value, the
+ right field is error description.
+
+ 0x00000001 Processor Correctable
+ 0x00000002 Processor Uncorrectable non-fatal
+ 0x00000004 Processor Uncorrectable fatal
+ 0x00000008 Memory Correctable
+ 0x00000010 Memory Uncorrectable non-fatal
+ 0x00000020 Memory Uncorrectable fatal
+ 0x00000040 PCI Express Correctable
+ 0x00000080 PCI Express Uncorrectable fatal
+ 0x00000100 PCI Express Uncorrectable non-fatal
+ 0x00000200 Platform Correctable
+ 0x00000400 Platform Uncorrectable non-fatal
+ 0x00000800 Platform Uncorrectable fatal
+
+ The format of file contents are as above, except there are only the
+ available error type lines.
+
+- error_type
+ This file is used to set the error type value. The error type value
+ is defined in "available_error_type" description.
+
+- error_inject
+ Write any integer to this file to trigger the error
+ injection. Before this, please specify all necessary error
+ parameters.
+
+For more information about EINJ, please refer to ACPI specification
+version 4.0, section 17.5.
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -843,6 +843,11 @@ and is between 256 and 4096 characters.
hd= [EIDE] (E)IDE hard drive subsystem geometry
Format: <cyl>,<head>,<sect>
+ hest_disable [ACPI]
+ Disable Hardware Error Source Table (HEST) support,
+ corresponding firmware-first mode error processing
+ logic will be disabled.
+
highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
size of <nn>. This works even on boxes that have no
highmem otherwise. This also works to reduce highmem
next prev parent reply other threads:[~2010-04-27 6:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-27 6:41 ACPI, APEI support Huang Ying
2010-04-27 6:41 ` [PATCH 01/12] ACPI, IO memory pre-mapping and atomic accessing Huang Ying
2010-04-27 6:41 ` [PATCH 02/12] ACPI, APEI, APEI supporting infrastructure Huang Ying
2010-04-27 6:41 ` [PATCH 03/12] ACPI, APEI, HEST table parsing Huang Ying
2010-04-27 6:41 ` [PATCH 04/12] ACPI, APEI, EINJ support Huang Ying
2010-04-27 6:41 ` Huang Ying [this message]
2010-04-27 6:41 ` [PATCH 06/12] ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup Huang Ying
2010-04-27 6:41 ` [PATCH 07/12] ACPI Hardware Error Device (PNP0C33) support Huang Ying
2010-04-27 6:41 ` [PATCH 08/12] Unified UUID/GUID definition Huang Ying
2010-04-27 6:41 ` [PATCH 09/12] ACPI, APEI, UEFI Common Platform Error Record (CPER) header Huang Ying
2010-04-27 6:41 ` [PATCH 10/12] ACPI, APEI, Generic Hardware Error Source memory error support Huang Ying
2010-04-27 6:41 ` [PATCH 11/12] ACPI, APEI, Error Record Serialization Table (ERST) support Huang Ying
2010-04-27 6:41 ` [PATCH 12/12] ACPI, APEI, Use ERST for persistent storage of MCE Huang Ying
2010-05-11 11:25 ` ACPI, APEI support Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1272350481-27951-6-git-send-email-ying.huang@intel.com \
--to=ying.huang@intel.com \
--cc=ak@linux.intel.com \
--cc=andi@firstfloor.org \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).