--- a/hotspot/src/cpu/x86/vm/vm_version_x86.hpp Tue Jul 02 07:51:31 2013 +0200
+++ b/hotspot/src/cpu/x86/vm/vm_version_x86.hpp Tue Jul 02 20:42:12 2013 -0400
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -61,7 +61,8 @@
uint32_t value;
struct {
uint32_t sse3 : 1,
- : 2,
+ clmul : 1,
+ : 1,
monitor : 1,
: 1,
vmx : 1,
@@ -249,7 +250,8 @@
CPU_AVX = (1 << 17),
CPU_AVX2 = (1 << 18),
CPU_AES = (1 << 19),
- CPU_ERMS = (1 << 20) // enhanced 'rep movsb/stosb' instructions
+ CPU_ERMS = (1 << 20), // enhanced 'rep movsb/stosb' instructions
+ CPU_CLMUL = (1 << 21) // carryless multiply for CRC
} cpuFeatureFlags;
enum {
@@ -429,6 +431,8 @@
result |= CPU_AES;
if (_cpuid_info.sef_cpuid7_ebx.bits.erms != 0)
result |= CPU_ERMS;
+ if (_cpuid_info.std_cpuid1_ecx.bits.clmul != 0)
+ result |= CPU_CLMUL;
// AMD features.
if (is_amd()) {
@@ -555,6 +559,7 @@
static bool supports_tsc() { return (_cpuFeatures & CPU_TSC) != 0; }
static bool supports_aes() { return (_cpuFeatures & CPU_AES) != 0; }
static bool supports_erms() { return (_cpuFeatures & CPU_ERMS) != 0; }
+ static bool supports_clmul() { return (_cpuFeatures & CPU_CLMUL) != 0; }
// Intel features
static bool is_intel_family_core() { return is_intel() &&