kernel/x86: add a compiler level memory barrier to wbinvd

Change-Id: Id96e37b83110f413a2b30f2967921ce90f31dd94 Reviewed-on: https://review.haiku-os.org/c/haiku/+/2272 Reviewed-by: Adrien Destugues <[email protected]>
2020-02-25 04:43:41 +00:00
parent f9b0390d8f
commit 84195a491f
1 changed files with 1 additions and 1 deletions
@@ -496,7 +496,7 @@ typedef struct arch_cpu_info {
 	__asm__("invlpg (%0)" : : "r" (va))

 #define wbinvd() \
-	__asm__("wbinvd")
+	__asm__ volatile ("wbinvd" : : : "memory")

 #define set_ac() \
 	__asm__ volatile (ASM_STAC : : : "memory")