[Qemu-devel] [PATCH v2 11/11] tcg: Note requirement on atomic direct jump patching

[Sergey Fedorov]

From: Sergey Fedorov <address@hidden>

Signed-off-by: Sergey Fedorov <address@hidden>
Signed-off-by: Sergey Fedorov <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
---

Changes in v2:
 * Minor rewording

 include/exec/exec-all.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 6a054ee720a8..67adcf137f8b 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -229,6 +229,7 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
     || defined(__sparc__) || defined(__aarch64__) \
     || defined(__s390x__) || defined(__mips__) \
     || defined(CONFIG_TCG_INTERPRETER)
+/* NOTE: Direct jump patching must be atomic to be thread-safe. */
 #define USE_DIRECT_JUMP
 #endif
 
-- 
2.8.1