utility.hh revision 7629
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_UTILITY_HH__ 41#define __ARCH_X86_UTILITY_HH__ 42 43#include "arch/x86/regs/misc.hh" 44#include "arch/x86/types.hh" 45#include "base/hashmap.hh" 46#include "base/misc.hh" 47#include "base/types.hh" 48#include "config/full_system.hh" 49#include "cpu/thread_context.hh" 50 51class ThreadContext; 52 53namespace __hash_namespace { 54 template<> 55 struct hash<X86ISA::ExtMachInst> { 56 size_t operator()(const X86ISA::ExtMachInst &emi) const { 57 return (((uint64_t)emi.legacy << 56) | 58 ((uint64_t)emi.rex << 48) | 59 ((uint64_t)emi.modRM << 40) | 60 ((uint64_t)emi.sib << 32) | 61 ((uint64_t)emi.opcode.num << 24) | 62 ((uint64_t)emi.opcode.prefixA << 16) | 63 ((uint64_t)emi.opcode.prefixB << 8) | 64 ((uint64_t)emi.opcode.op)) ^ 65 emi.immediate ^ emi.displacement ^ 66 emi.mode ^ 67 emi.opSize ^ emi.addrSize ^ 68 emi.stackSize ^ emi.dispSize; 69 }; 70 }; 71} 72 73namespace X86ISA 74{ 75 uint64_t getArgument(ThreadContext *tc, int number, bool fp); 76 77 static inline bool 78 inUserMode(ThreadContext *tc) 79 { 80#if FULL_SYSTEM 81 HandyM5Reg m5reg = tc->readMiscRegNoEffect(MISCREG_M5_REG); 82 return m5reg.cpl == 3; 83#else 84 return true; 85#endif 86 } 87 88 /** 89 * Function to insure ISA semantics about 0 registers. 90 * @param tc The thread context. 91 */ 92 template <class TC> 93 void zeroRegisters(TC *tc); 94 95#if FULL_SYSTEM 96 97 void initCPU(ThreadContext *tc, int cpuId); 98 99#endif 100 101 void startupCPU(ThreadContext *tc, int cpuId); 102 103 void copyRegs(ThreadContext *src, ThreadContext *dest); 104 105 void copyMiscRegs(ThreadContext *src, ThreadContext *dest); 106}; 107 108#endif // __ARCH_X86_UTILITY_HH__ 109