diff options
| -rw-r--r-- | arch/powerpc/perf/power8-pmu.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index 3ad363d..fe2763b 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -325,9 +325,10 @@ static int power8_get_constraint(u64 event, unsigned long *maskp, unsigned long * HV writable, and there is no API for guest kernels to modify * it. The solution is for the hypervisor to initialise the * field to zeroes, and for us to only ever allow events that - * have a cache selector of zero. + * have a cache selector of zero. The bank selector (bit 3) is + * irrelevant, as long as the rest of the value is 0. */ - if (cache) + if (cache & 0x7) return -1; } else if (event & EVENT_IS_L1) { |
