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Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Documentation/perf-list.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index ddc22525228..232be519580 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -15,6 +15,7 @@ DESCRIPTION This command displays the symbolic event types which can be selected in the various perf commands with the -e option. +[[EVENT_MODIFIERS]] EVENT MODIFIERS --------------- @@ -44,6 +45,11 @@ layout of IA32_PERFEVTSELx MSRs (see [Intel® 64 and IA-32 Architectures Softwar of IA32_PERFEVTSELx MSRs) or AMD's PerfEvtSeln (see [AMD64 Architecture Programmer’s Manual Volume 2: System Programming], Page 344, Figure 13-7 Performance Event-Select Register (PerfEvtSeln)). +Note: Only the following bit fields can be set in x86 counter +registers: event, umask, edge, inv, cmask. Esp. guest/host only and +OS/user mode flags must be setup using <<EVENT_MODIFIERS, EVENT +MODIFIERS>>. + Example: If the Intel docs for a QM720 Core i7 describe an event as: |