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2017-06-26RAS/CEC: Check the correct variable in the debugfs error handlingChristophe JAILLET1-1/+1
Check the correct variable when handling a potential error from debugfs_create_file(). Most likely a copy-paste botch. [ Rewrite commit message. ] Fixes: 011d82611172 ("RAS: Add a Corrected Errors Collector") Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
2017-06-22trace, ras: add ARM processor error trace eventTyler Baicar1-0/+6
Currently there are trace events for the various RAS errors with the exception of ARM processor type errors. Add a new trace event for such errors so that the user will know when they occur. These trace events are consistent with the ARM processor error section type defined in UEFI 2.6 spec section N.2.4.4. Signed-off-by: Tyler Baicar <[email protected]> Acked-by: Steven Rostedt <[email protected]> Reviewed-by: Xie XiuQi <[email protected]> Signed-off-by: Will Deacon <[email protected]>
2017-06-22ras: acpi / apei: generate trace event for unrecognized CPER sectionTyler Baicar1-1/+9
The UEFI spec includes non-standard section type support in the Common Platform Error Record. This is defined in section N.2.3 of UEFI version 2.5. Currently if the CPER section's type (UUID) does not match any section type that the kernel knows how to parse, a trace event is not generated. Generate a trace event which contains the raw error data for non-standard section type error records. Signed-off-by: Tyler Baicar <[email protected]> CC: Jonathan (Zhixiong) Zhang <[email protected]> Tested-by: Shiju Jose <[email protected]> Signed-off-by: Will Deacon <[email protected]>
2017-05-21RAS: Make local function parse_ras_param() staticWei Yongjun1-1/+1
Make parse_ras_param() static as it is used locally only. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2017-03-28RAS: Add a Corrected Errors CollectorBorislav Petkov5-2/+554
Introduce a simple data structure for collecting correctable errors along with accessors. More detailed description in the code itself. The error decoding is done with the decoding chain now and mce_first_notifier() gets to see the error first and the CEC decides whether to log it and then the rest of the chain doesn't hear about it - basically the main reason for the CE collector - or to continue running the notifiers. When the CEC hits the action threshold, it will try to soft-offine the page containing the ECC and then the whole decoding chain gets to see the error. Signed-off-by: Borislav Petkov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: linux-edac <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2015-08-13x86/ras: Move AMD MCE injector to arch/x86/ras/Borislav Petkov1-0/+3
This is an x86-specific module and would benefit from being closer to the arch code. Move it there. Update copyright while at it. Signed-off-by: Borislav Petkov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tony Luck <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2015-08-13RAS: Add a menuconfig option with descriptive textBorislav Petkov1-2/+32
Text taken a previous patch from "Gong Chen" <[email protected]>. Signed-off-by: Borislav Petkov <[email protected]> Cc: Gong Chen <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tony Luck <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2014-06-25trace, RAS: Add eMCA trace event interfaceChen, Gong1-0/+3
Add trace interface to elaborate all H/W error related information. Signed-off-by: Chen, Gong <[email protected]> Acked-by: Borislav Petkov <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2014-06-25RAS, debugfs: Add debugfs interface for RAS subsystemChen, Gong3-1/+71
Implement a new debugfs interface for RAS susbsystem. A file named daemon_active is added there accordingly. This file is used to track if user space daemon accesses perf/trace interface or not. One can track which daemon opens it via "lsof /path/to/debugfs/ras/daemon_active". Signed-off-by: Chen, Gong <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Borislav Petkov <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2014-06-23trace, RAS: Add basic RAS trace eventChen, Gong3-0/+15
To avoid confuision and conflict of usage for RAS related trace event, add an unified RAS trace event stub. Start a RAS subsystem menu which will be fleshed out in time, when more features get added to it. Signed-off-by: Chen, Gong <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Borislav Petkov <[email protected]> Signed-off-by: Tony Luck <[email protected]>
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