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| author | Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com> | 2021-11-04 16:58:41 -0500 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-12-08 12:00:56 +0100 |
| commit | e48d008bd13eaa9068ff59c65275d17516179f7b (patch) | |
| tree | b6e0743b4adeaa3852d8424d938c56366eca6d1a /scripts/gdb/linux/proc.py | |
| parent | 2322b532ad9043336f36ba2634ab3620d5d5b4f5 (diff) | |
x86/mce/inject: Check if a bank is populated before injecting
The MCA_IPID register uniquely identifies a bank's type on Scalable MCA
(SMCA) systems. When an MCA bank is not populated, the MCA_IPID register
will read as zero and writes to it will be ignored.
On a hw-type error injection (injection which writes the actual MCA
registers in an attempt to cause a real MCE) check the value of this
register before trying to inject the error.
Do not impose any limitations on a sw injection and allow the user to
test out all the decoding paths without relying on the available hardware,
as its purpose is to just test the code.
[ bp: Heavily massage. ]
Link: https://lkml.kernel.org/r/20211019233641.140275-2-Smita.KoralahalliChannabasappa@amd.com
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211104215846.254012-2-Smita.KoralahalliChannabasappa@amd.com
Diffstat (limited to 'scripts/gdb/linux/proc.py')
0 files changed, 0 insertions, 0 deletions