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36f65f9b7a
The question of exactly when KPTI needs to be disabled comes up a lot because it doesn't always need to be done. Add the relevant kernel function and some examples that describe the behavior. Also describe the interrupt requirement and that no error message will be printed if this isn't met. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: James Clark <james.clark@arm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240312132508.423320-1-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| bench | ||
| dlfilters | ||
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| pmu-events | ||
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| perf-read-vdso.c | ||
| perf-sys.h | ||
| perf.c | ||
| perf.h | ||