process.hh revision 11884:e8536709cbc0
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Gabe Black 38 */ 39 40#ifndef __ARCH_X86_PROCESS_HH__ 41#define __ARCH_X86_PROCESS_HH__ 42 43#include <string> 44#include <vector> 45 46#include "sim/aux_vector.hh" 47#include "sim/process.hh" 48#include "mem/multi_level_page_table.hh" 49 50class SyscallDesc; 51 52namespace X86ISA 53{ 54 enum X86AuxiliaryVectorTypes { 55 M5_AT_SYSINFO = 32, 56 M5_AT_SYSINFO_EHDR = 33 57 }; 58 59 class X86Process : public Process 60 { 61 protected: 62 Addr _gdtStart; 63 Addr _gdtSize; 64 65 SyscallDesc *syscallDescs; 66 const int numSyscallDescs; 67 68 X86Process(ProcessParams * params, ObjectFile *objFile, 69 SyscallDesc *_syscallDescs, int _numSyscallDescs); 70 71 template<class IntType> 72 void argsInit(int pageSize, 73 std::vector<AuxVector<IntType> > extraAuxvs); 74 75 public: 76 Addr gdtStart() 77 { return _gdtStart; } 78 79 Addr gdtSize() 80 { return _gdtSize; } 81 82 SyscallDesc* getDesc(int callnum); 83 84 void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value); 85 }; 86 87 class X86_64Process : public X86Process 88 { 89 protected: 90 X86_64Process(ProcessParams *params, ObjectFile *objFile, 91 SyscallDesc *_syscallDescs, int _numSyscallDescs); 92 93 class VSyscallPage 94 { 95 public: 96 Addr base; 97 Addr size; 98 Addr vtimeOffset; 99 Addr vgettimeofdayOffset; 100 }; 101 VSyscallPage vsyscallPage; 102 103 public: 104 void argsInit(int pageSize); 105 void initState(); 106 107 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 108 /// Explicitly import the otherwise hidden getSyscallArg 109 using Process::getSyscallArg; 110 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 111 }; 112 113 class I386Process : public X86Process 114 { 115 protected: 116 I386Process(ProcessParams *params, ObjectFile *objFile, 117 SyscallDesc *_syscallDescs, int _numSyscallDescs); 118 119 class VSyscallPage 120 { 121 public: 122 Addr base; 123 Addr size; 124 Addr vsyscallOffset; 125 Addr vsysexitOffset; 126 }; 127 VSyscallPage vsyscallPage; 128 129 public: 130 void argsInit(int pageSize); 131 void initState(); 132 133 void syscall(int64_t callnum, ThreadContext *tc, Fault *fault); 134 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i); 135 X86ISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); 136 void setSyscallArg(ThreadContext *tc, int i, X86ISA::IntReg val); 137 }; 138 139 /** 140 * Declaration of architectural page table for x86. 141 * 142 * These page tables are stored in system memory and respect x86 specification. 143 */ 144 typedef MultiLevelPageTable<PageTableOps> ArchPageTable; 145 146} 147 148#endif // __ARCH_X86_PROCESS_HH__ 149