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-rw-r--r--src/arch/x86/isa/insts/system/msrs.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/arch/x86/isa/insts/system/msrs.py b/src/arch/x86/isa/insts/system/msrs.py
index 16d158ab5..fe9c5b262 100644
--- a/src/arch/x86/isa/insts/system/msrs.py
+++ b/src/arch/x86/isa/insts/system/msrs.py
@@ -60,6 +60,7 @@ def macroop WRMSR
def macroop RDTSC
{
+ .serialize_before
rdtsc t1
mov rax, rax, t1, dataSize=4
srli t1, t1, 32, dataSize=8