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Commit c243cecb authored by Adrian Hunter's avatar Adrian Hunter Committed by Peter Zijlstra
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perf/x86/intel/pt: Relax address filter validation



The requirement for 64-bit address filters is that they are canonical
addresses. In other respects any address range is allowed which would
include user space addresses.

That can be useful for tracing virtual machine guests because address
filtering can be used to advantage in place of current privilege level
(CPL) filtering.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-2-adrian.hunter@intel.com
parent 26291c54
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