vppinfra: fix cpu freq init error if cpu support aperfmperf
After linux-v4.15, 'cpu MHz' in /proc/cpuinfo is CPU
real frequency on x86 if cpu support aperfmperf flags
more see linux commit:
https://github.com/torvalds/linux/commit/7d5905dc14a87805a59f3c5bf70173aac2bb18f8
Type: fix
Change-Id: Ib655a9a1c519104142120b343cd8ddbe0b6e50e6
Signed-off-by: Xiaoming Jiang <jiangxiaoming@outlook.com>
diff --git a/src/vppinfra/time.c b/src/vppinfra/time.c
index 5a6aaf1..f173649 100644
--- a/src/vppinfra/time.c
+++ b/src/vppinfra/time.c
@@ -76,8 +76,11 @@
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