* don't run this test on AMD since AMD's LBR is not the same as Intel's LBR
and needs a different test.
* don't run this test on 32 bit as it is not built for 32 bit anyway
Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
---
x86/pmu_lbr.c | 8 ++++++++
x86/unittests.cfg | 1 +
2 files changed, 9 insertions(+)
diff --git a/x86/pmu_lbr.c b/x86/pmu_lbr.c
index 3bd9e9f..5d6c424 100644
--- a/x86/pmu_lbr.c
+++ b/x86/pmu_lbr.c
@@ -68,6 +68,12 @@ int main(int ac, char **av)
int max, i;
setup_vm();
+
+ if (!is_intel()) {
+ report_skip("PMU_LBR test is for intel CPU's only");
+ return 0;
+ }
+
perf_cap = rdmsr(MSR_IA32_PERF_CAPABILITIES);
eax.full = id.a;
@@ -83,6 +89,8 @@ int main(int ac, char **av)
printf("PMU version: %d\n", eax.split.version_id);
printf("LBR version: %ld\n", perf_cap & PMU_CAP_LBR_FMT);
+
+
/* Look for LBR from and to MSRs */
lbr_from = MSR_LBR_CORE_FROM;
lbr_to = MSR_LBR_CORE_TO;
diff --git a/x86/unittests.cfg b/x86/unittests.cfg
index d5efab0..e3c8a98 100644
--- a/x86/unittests.cfg
+++ b/x86/unittests.cfg
@@ -180,6 +180,7 @@ extra_params = -cpu max
check = /proc/sys/kernel/nmi_watchdog=0
[pmu_lbr]
+arch = x86_64
file = pmu_lbr.flat
extra_params = -cpu host,migratable=no
check = /sys/module/kvm/parameters/ignore_msrs=N
--
2.26.3
