diff options
| author | Borislav Petkov <[email protected]> | 2018-05-17 10:46:26 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-05-19 15:19:30 +0200 |
| commit | 78ce241099bb363b19dbd0245442e66c8de8f567 (patch) | |
| tree | 735340ca194fc1472f9671f4012fae06b3ce93f5 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 73fcb1a370c76b202d406e95d9dabb76eaccf484 (diff) | |
x86/MCE/AMD: Cache SMCA MISC block addresses
... into a global, two-dimensional array and service subsequent reads from
that cache to avoid rdmsr_on_cpu() calls during CPU hotplug (IPIs with IRQs
disabled).
In addition, this fixes a KASAN slab-out-of-bounds read due to wrong usage
of the bank->blocks pointer.
Fixes: 27bd59502702 ("x86/mce/AMD: Get address from already initialized block")
Reported-by: Johannes Hirte <[email protected]>
Tested-by: Johannes Hirte <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Yazen Ghannam <[email protected]>
Link: http://lkml.kernel.org/r/20180414004230.GA2033@probook
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions