Common header file change not directly applicable to open-vm-tools.

diff --git a/open-vm-tools/lib/include/vm_basic_asm_x86_common.h b/open-vm-tools/lib/include/vm_basic_asm_x86_common.h
index f6fdbb33959f94b8f7f5e3389bddc077c7e13e7d..5b3f4b65b00809b20d50e74aa390f6093ba90278 100644 (file)
--- a/open-vm-tools/lib/include/vm_basic_asm_x86_common.h
+++ b/open-vm-tools/lib/include/vm_basic_asm_x86_common.h
@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 2013-2018 VMware, Inc. All rights reserved.
+ * Copyright (C) 2013-2019 VMware, Inc. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published
@@ -309,6 +309,63 @@ RDTSC_BARRIER(void)
 #endif
 }
 
+static INLINE void
+MFENCE(void)
+{
+#ifdef __GNUC__
+   __asm__ __volatile__(
+      "mfence"
+      ::: "memory"
+   );
+#elif defined _MSC_VER
+   _ReadWriteBarrier();
+   _mm_mfence();
+   _ReadWriteBarrier();
+#else
+#error No compiler defined for MFENCE
+#endif
+}
+
+
+static INLINE void
+LFENCE(void)
+{
+#ifdef __GNUC__
+   __asm__ __volatile__(
+      "lfence"
+      : : : "memory"
+   );
+#elif defined _MSC_VER
+   _ReadWriteBarrier();
+   _mm_lfence();
+   _ReadWriteBarrier();
+#else
+#error No compiler defined for LFENCE
+#endif
+}
+
+
+static INLINE void
+SFENCE(void)
+{
+#ifdef __GNUC__
+   __asm__ __volatile__(
+      "sfence"
+      : : : "memory"
+   );
+#elif defined _MSC_VER
+   _ReadWriteBarrier();
+#if defined VM_X86_32
+   __asm sfence;
+#else
+   _mm_sfence();
+#endif
+   _ReadWriteBarrier();
+#else
+#error No compiler defined for SFENCE
+#endif
+}
+
 
 /*
  * Memory Barriers