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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-21 00:10:27 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-21 00:10:27 +0400 |
commit | fab5669d556200c4dd119af705bff14085845d1e (patch) | |
tree | 366d05fc858fc599177d687f37b227a4832c2f48 /Documentation | |
parent | 74e8ee8262c3f93bbc41804037b43f07b95897bb (diff) | |
parent | b769e014f3ae4af8a56c6327077b3c40410dedad (diff) | |
download | linux-fab5669d556200c4dd119af705bff14085845d1e.tar.xz |
Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS changes from Ingo Molnar:
- SCI reporting for other error types not only correctable ones
- GHES cleanups
- Add the functionality to override error reporting agents as some
machines are sporting a new extended error logging capability which,
if done properly in the BIOS, makes a corresponding EDAC module
redundant
- PCIe AER tracepoint severity levels fix
- Error path correction for the mce device init
- MCE timer fix
- Add more flexibility to the error injection (EINJ) debugfs interface
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, mce: Fix mce_start_timer semantics
ACPI, APEI, GHES: Cleanup ghes memory error handling
ACPI, APEI: Cleanup alignment-aware accesses
ACPI, APEI, GHES: Do not report only correctable errors with SCI
ACPI, APEI, EINJ: Changes to the ACPI/APEI/EINJ debugfs interface
ACPI, eMCA: Combine eMCA/EDAC event reporting priority
EDAC, sb_edac: Modify H/W event reporting policy
EDAC: Add an edac_report parameter to EDAC
PCI, AER: Fix severity usage in aer trace event
x86, mce: Call put_device on device_register failure
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/acpi/apei/einj.txt | 19 | ||||
-rw-r--r-- | Documentation/kernel-parameters.txt | 8 |
2 files changed, 26 insertions, 1 deletions
diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt index a58b63da1a36..f51861bcb07b 100644 --- a/Documentation/acpi/apei/einj.txt +++ b/Documentation/acpi/apei/einj.txt @@ -45,11 +45,22 @@ directory apei/einj. The following files are provided. injection. Before this, please specify all necessary error parameters. +- flags + Present for kernel version 3.13 and above. Used to specify which + of param{1..4} are valid and should be used by BIOS during injection. + Value is a bitmask as specified in ACPI5.0 spec for the + SET_ERROR_TYPE_WITH_ADDRESS data structure: + Bit 0 - Processor APIC field valid (see param3 below) + Bit 1 - Memory address and mask valid (param1 and param2) + Bit 2 - PCIe (seg,bus,dev,fn) valid (param4 below) + If set to zero, legacy behaviour is used where the type of injection + specifies just one bit set, and param1 is multiplexed. + - param1 This file is used to set the first error parameter value. Effect of parameter depends on error_type specified. For example, if error type is memory related type, the param1 should be a valid physical - memory address. + memory address. [Unless "flag" is set - see above] - param2 This file is used to set the second error parameter value. Effect of @@ -58,6 +69,12 @@ directory apei/einj. The following files are provided. address mask. Linux requires page or narrower granularity, say, 0xfffffffffffff000. +- param3 + Used when the 0x1 bit is set in "flag" to specify the APIC id + +- param4 + Used when the 0x4 bit is set in "flag" to specify target PCIe device + - notrigger The EINJ mechanism is a two step process. First inject the error, then perform some actions to trigger it. Setting "notrigger" to 1 skips the diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4eb5fff022b4..092cfd139065 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -890,6 +890,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. The xen output can only be used by Xen PV guests. + edac_report= [HW,EDAC] Control how to report EDAC event + Format: {"on" | "off" | "force"} + on: enable EDAC to report H/W event. May be overridden + by other higher priority error reporting module. + off: disable H/W event reporting through EDAC. + force: enforce the use of EDAC to report H/W event. + default: on. + ekgdboc= [X86,KGDB] Allow early kernel console debugging ekgdboc=kbd |