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authorMarco Cavenati <cavenati.marco@gmail.com>2024-06-24 23:10:55 +0300
committerPeter Zijlstra <peterz@infradead.org>2024-07-04 16:00:20 +0200
commit5638bd722a44bbe97c1a7b3fae5b9efddb3e70ff (patch)
treeb3cc6465defd9430474b143824efc6b2871ab974 /scripts/lib/kdoc/kdoc_parser.py
parentf8a86a9bb5f7e65d8c4405052de062639a8783bb (diff)
perf/x86/intel/pt: Fix topa_entry base length
topa_entry->base needs to store a pfn. It obviously needs to be large enough to store the largest possible x86 pfn which is MAXPHYADDR-PAGE_SIZE (52-12). So it is 4 bits too small. Increase the size of topa_entry->base from 36 bits to 40 bits. Note, systems where physical addresses can be 256TiB or more are affected. [ Adrian: Amend commit message as suggested by Dave Hansen ] Fixes: 52ca9ced3f70 ("perf/x86/intel/pt: Add Intel PT PMU driver") Signed-off-by: Marco Cavenati <cavenati.marco@gmail.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240624201101.60186-2-adrian.hunter@intel.com
Diffstat (limited to 'scripts/lib/kdoc/kdoc_parser.py')
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