--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/x86/vm_version_ext_x86.hpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2013, 2018, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef CPU_X86_VM_VM_VERSION_EXT_X86_HPP
+#define CPU_X86_VM_VM_VERSION_EXT_X86_HPP
+
+#include "utilities/macros.hpp"
+#include "vm_version_x86.hpp"
+
+class VM_Version_Ext : public VM_Version {
+ private:
+  static const size_t      VENDOR_LENGTH;
+  static const size_t      CPU_EBS_MAX_LENGTH;
+  static const size_t      CPU_TYPE_DESC_BUF_SIZE;
+  static const size_t      CPU_DETAILED_DESC_BUF_SIZE;
+
+  static const char* const _family_id_intel[];
+  static const char* const _family_id_amd[];
+  static const char* const _brand_id[];
+  static const char* const _model_id_pentium_pro[];
+
+  static const char* const _feature_edx_id[];
+  static const char* const _feature_extended_edx_id[];
+  static const char* const _feature_ecx_id[];
+  static const char* const _feature_extended_ecx_id[];
+
+  static int               _no_of_threads;
+  static int               _no_of_cores;
+  static int               _no_of_packages;
+  static char*             _cpu_brand_string;
+  static jlong             _max_qualified_cpu_frequency;
+
+  static const char* cpu_family_description(void);
+  static const char* cpu_model_description(void);
+  static const char* cpu_brand(void);
+  static const char* cpu_brand_string(void);
+
+  static int cpu_type_description(char* const buf, size_t buf_len);
+  static int cpu_detailed_description(char* const buf, size_t buf_len);
+  static int cpu_extended_brand_string(char* const buf, size_t buf_len);
+
+  static bool cpu_is_em64t(void);
+  static bool is_netburst(void);
+
+  static size_t cpu_write_support_string(char* const buf, size_t buf_len);
+  static void resolve_cpu_information_details(void);
+  static jlong max_qualified_cpu_freq_from_brand_string(void);
+
+ public:
+  // Offsets for cpuid asm stub brand string
+  static ByteSize proc_name_0_offset() { return byte_offset_of(CpuidInfo, proc_name_0); }
+  static ByteSize proc_name_1_offset() { return byte_offset_of(CpuidInfo, proc_name_1); }
+  static ByteSize proc_name_2_offset() { return byte_offset_of(CpuidInfo, proc_name_2); }
+  static ByteSize proc_name_3_offset() { return byte_offset_of(CpuidInfo, proc_name_3); }
+  static ByteSize proc_name_4_offset() { return byte_offset_of(CpuidInfo, proc_name_4); }
+  static ByteSize proc_name_5_offset() { return byte_offset_of(CpuidInfo, proc_name_5); }
+  static ByteSize proc_name_6_offset() { return byte_offset_of(CpuidInfo, proc_name_6); }
+  static ByteSize proc_name_7_offset() { return byte_offset_of(CpuidInfo, proc_name_7); }
+  static ByteSize proc_name_8_offset() { return byte_offset_of(CpuidInfo, proc_name_8); }
+  static ByteSize proc_name_9_offset() { return byte_offset_of(CpuidInfo, proc_name_9); }
+  static ByteSize proc_name_10_offset() { return byte_offset_of(CpuidInfo, proc_name_10); }
+  static ByteSize proc_name_11_offset() { return byte_offset_of(CpuidInfo, proc_name_11); }
+
+  static int number_of_threads(void);
+  static int number_of_cores(void);
+  static int number_of_sockets(void);
+
+  static jlong maximum_qualified_cpu_frequency(void);
+
+  static bool supports_tscinv_ext(void);
+
+  static const char* cpu_name(void);
+  static const char* cpu_description(void);
+
+  static void initialize();
+};
+
+#endif // CPU_X86_VM_VM_VERSION_EXT_X86_HPP