diff options
| -rw-r--r-- | arch/x86/include/asm/nospec-branch.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h index 90e01a35e8a2..1e5df3ccdd5c 100644 --- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -61,7 +61,9 @@ 774: \ dec reg; \ jnz 771b; \ - add $(BITS_PER_LONG/8) * nr, sp; + add $(BITS_PER_LONG/8) * nr, sp; \ + /* barrier for jnz misprediction */ \ + lfence; #define __ISSUE_UNBALANCED_RET_GUARD(sp) \ call 881f; \ |