Messages in this thread | | | From | Smita Koralahalli <> | Subject | [PATCH v5 0/3] x86/mce: Handle error injection failure in mce-inject module | Date | Mon, 2 May 2022 22:28:16 -0500 |
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This set of patches handles a scenario of silent hw error injection failure on mce-inject module and returns appropriate error code to userspace.
Error injection fails if the platform enforces write ignored behavior on status registers and the second patch checks for writes ignored from MCA_STATUS register and returns appropriate error code to user.
The first patch does some cleanup by replacing existing struct i_mce with inject_desc and including error field as its member.
The last patch assigns and returns the error code to userspace when none of the CPUs are online.
Smita Koralahalli (3): x86/mce/mce-inject: Replace struct i_mce with struct inject_desc x86/mce: Check for writes ignored in MCA_STATUS register x86/mce/mce-inject: Return appropriate error code if CPUs are offline
arch/x86/kernel/cpu/mce/inject.c | 124 +++++++++++++++++++---------- arch/x86/kernel/cpu/mce/internal.h | 2 +- 2 files changed, 82 insertions(+), 44 deletions(-)
-- 2.17.1
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