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-rw-r--r--src/vppinfra/cpu.h1
-rw-r--r--src/vppinfra/time.c7
2 files changed, 6 insertions, 2 deletions
diff --git a/src/vppinfra/cpu.h b/src/vppinfra/cpu.h
index 7a1b75fcf7d..b3743d4c26d 100644
--- a/src/vppinfra/cpu.h
+++ b/src/vppinfra/cpu.h
@@ -150,6 +150,7 @@ _CLIB_MARCH_FN_REGISTRATION(fn)
_ (movdir64b, 7, ecx, 28) \
_ (enqcmd, 7, ecx, 29) \
_ (avx512_fp16, 7, edx, 23) \
+ _ (aperfmperf, 0x00000006, ecx, 0) \
_ (invariant_tsc, 0x80000007, edx, 8) \
_ (monitorx, 0x80000001, ecx, 29)
diff --git a/src/vppinfra/time.c b/src/vppinfra/time.c
index 5a6aaf182e4..f1736499a0a 100644
--- a/src/vppinfra/time.c
+++ b/src/vppinfra/time.c
@@ -76,8 +76,11 @@ clock_frequency_from_proc_filesystem (void)
f64 ppc_timebase = 0; /* warnings be gone */
unformat_input_t input;
-/* $$$$ aarch64 kernel doesn't report "cpu MHz" */
-#if defined(__aarch64__)
+#if defined(__x86_64__)
+ if (clib_cpu_supports_aperfmperf ())
+ return 0.0;
+#elif defined(__aarch64__)
+ /* $$$$ aarch64 kernel doesn't report "cpu MHz" */
return 0.0;
#endif