X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/593a1d5fd87cdf5b46dd5fcb84467b432cea0f91..c910b4d9d2451126ae3917b931cd4390c11e1d52:/osfmk/i386/machine_routines_asm.s?ds=sidebyside

diff --git a/osfmk/i386/machine_routines_asm.s b/osfmk/i386/machine_routines_asm.s
index f68b81376..bb4095af3 100644
--- a/osfmk/i386/machine_routines_asm.s
+++ b/osfmk/i386/machine_routines_asm.s
@@ -47,6 +47,7 @@ ENTRY(ml_get_timebase)
 
 			movl    S_ARG0, %ecx
 			
+			lfence
 			rdtsc
 			lfence
 			
@@ -235,7 +236,9 @@ Lslow:
 		pushl		%esi					/* save generation */
 		pushl		RNT_SHIFT(%edi)				/* save low 32 bits of tscFreq */
 
-		rdtsc							/* get TSC in %edx:%eax */
+		lfence
+		rdtsc	  						/* get TSC in %edx:%eax */
+		lfence
 		subl		RNT_TSC_BASE(%edi),%eax
 		sbbl		RNT_TSC_BASE+4(%edi),%edx