cpuid.hh revision 9554:406fbcf60223 
1/*
2 * Copyright (c) 2008 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#ifndef __ARCH_X86_CPUID_HH__
32#define __ARCH_X86_CPUID_HH__
33
34#include "base/types.hh"
35
36class ThreadContext;
37
38namespace X86ISA
39{
40    struct CpuidResult
41    {
42        uint64_t rax;
43        uint64_t rbx;
44        uint64_t rcx;
45        uint64_t rdx;
46
47        // These are not in alphebetical order on purpose. The order reflects
48        // how the CPUID orders the registers when it returns results.
49        CpuidResult(uint64_t _rax, uint64_t _rbx,
50                    uint64_t _rdx, uint64_t _rcx) :
51            rax(_rax), rbx(_rbx), rcx(_rcx), rdx(_rdx)
52        {}
53
54        CpuidResult()
55        {}
56    };
57
58    uint64_t stringToRegister(const char *str);
59
60    bool doCpuid(ThreadContext * tc, uint32_t function,
61            uint32_t index, CpuidResult &result);
62} // namespace X86ISA
63
64#endif
65