X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/593a1d5fd87cdf5b46dd5fcb84467b432cea0f91..c910b4d9d2451126ae3917b931cd4390c11e1d52:/osfmk/i386/rtclock.h

diff --git a/osfmk/i386/rtclock.h b/osfmk/i386/rtclock.h
index e3ea716d4..6f3406a8c 100644
--- a/osfmk/i386/rtclock.h
+++ b/osfmk/i386/rtclock.h
@@ -83,6 +83,7 @@ extern rtc_nanotime_t	rtc_nanotime_info;
 0:	movl	RNT_GENERATION(%edi),%esi	/* being updated? */	; \
 	testl	%esi,%esi						; \
 	jz	0b				/* wait until done */	; \
+	lfence								; \
 	rdtsc								; \
 	lfence								; \
 	subl	RNT_TSC_BASE(%edi),%eax					; \
@@ -111,6 +112,7 @@ extern rtc_nanotime_t	rtc_nanotime_info;
 0:	movl	RNT_GENERATION(%rdi),%esi				; \
 	test	%esi,%esi			/* info updating? */	; \
 	jz	0b				/* - wait if so */	; \
+	lfence								; \
 	rdtsc								; \
 	lfence								; \
 	shlq	$32,%rdx						; \