Jan reported failing ltp test for pt. It looks like the reason is commit 38bb8d77d0b9, that did not keep the TOPA_SHIFT for entry base, adding it back.
[1] https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/tracing/pt_test/pt_test.c Reported-by: Jan Stancek <jstan...@redhat.com> Fixes: 38bb8d77d0b9 ("perf/x86/intel/pt: Split ToPA metadata and page layout") Signed-off-by: Jiri Olsa <jo...@redhat.com> --- arch/x86/events/intel/pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index 74e80ed9c6c4..05e43d0f430b 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -627,7 +627,7 @@ static struct topa *topa_alloc(int cpu, gfp_t gfp) * link as the 2nd entry in the table */ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries)) { - TOPA_ENTRY(&tp->topa, 1)->base = page_to_phys(p); + TOPA_ENTRY(&tp->topa, 1)->base = page_to_phys(p) >> TOPA_SHIFT; TOPA_ENTRY(&tp->topa, 1)->end = 1; } -- 2.21.0
