From e4c63d432de1805a97a6586e6610cf35f3b11889 Mon Sep 17 00:00:00 2001
From: german77 <juangerman-13@hotmail.com>
Date: Thu, 27 Jan 2022 16:53:58 -0600
Subject: wall_clock: use standard wall clock if rtsc frequency is too low

---
 src/common/wall_clock.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/common/wall_clock.cpp b/src/common/wall_clock.cpp
index 49830b8ab..ffa282e88 100644
--- a/src/common/wall_clock.cpp
+++ b/src/common/wall_clock.cpp
@@ -72,7 +72,9 @@ std::unique_ptr<WallClock> CreateBestMatchingClock(u32 emulated_cpu_frequency,
     if (caps.invariant_tsc) {
         rtsc_frequency = EstimateRDTSCFrequency();
     }
-    if (rtsc_frequency == 0) {
+
+    // Fallback to StandardWallClock if rtsc period is higher than a nano second
+    if (rtsc_frequency <= 1000000000) {
         return std::make_unique<StandardWallClock>(emulated_cpu_frequency,
                                                    emulated_clock_frequency);
     } else {
-- 
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