x86_traits.hh revision 6479:b9ab1b56391b 
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42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_X86TRAITS_HH__
59#define __ARCH_X86_X86TRAITS_HH__
60
61#include <cassert>
62
63#include "base/types.hh"
64
65namespace X86ISA
66{
67    const int NumMicroIntRegs = 16;
68
69    const int NumPseudoIntRegs = 1;
70    //1. The condition code bits of the rflags register.
71    const int NumImplicitIntRegs = 6;
72    //1. The lower part of the result of multiplication.
73    //2. The upper part of the result of multiplication.
74    //3. The quotient from division
75    //4. The remainder from division
76    //5. The divisor for division
77    //6. The register to use for shift doubles
78
79    const int NumMMXRegs = 8;
80    const int NumXMMRegs = 16;
81    const int NumMicroFpRegs = 8;
82
83    const int NumCRegs = 16;
84    const int NumDRegs = 8;
85
86    const int NumSegments = 6;
87    const int NumSysSegments = 4;
88
89    const Addr IntAddrPrefixMask = ULL(0xffffffff00000000);
90    const Addr IntAddrPrefixCPUID = ULL(0x100000000);
91    const Addr IntAddrPrefixMSR = ULL(0x200000000);
92    const Addr IntAddrPrefixIO = ULL(0x300000000);
93
94    const Addr PhysAddrPrefixIO = ULL(0x8000000000000000);
95    const Addr PhysAddrPrefixPciConfig = ULL(0xC000000000000000);
96    const Addr PhysAddrPrefixLocalAPIC = ULL(0x2000000000000000);
97    const Addr PhysAddrPrefixInterrupts = ULL(0xA000000000000000);
98    // Each APIC gets two pages. One page is used for local apics to field
99    // accesses from the CPU, and the other is for all APICs to communicate.
100    const Addr PhysAddrAPICRangeSize = 1 << 12;
101
102    static inline Addr
103    x86IOAddress(const uint32_t port)
104    {
105        return PhysAddrPrefixIO | port;
106    }
107
108    static inline Addr
109    x86PciConfigAddress(const uint32_t addr)
110    {
111        return PhysAddrPrefixPciConfig | addr;
112    }
113
114    static inline Addr
115    x86LocalAPICAddress(const uint8_t id, const uint16_t addr)
116    {
117        assert(addr < (1 << 12));
118        return PhysAddrPrefixLocalAPIC | (id * (1 << 12)) | addr;
119    }
120
121    static inline Addr
122    x86InterruptAddress(const uint8_t id, const uint16_t addr)
123    {
124        assert(addr < PhysAddrAPICRangeSize);
125        return PhysAddrPrefixInterrupts | (id * PhysAddrAPICRangeSize) | addr;
126    }
127}
128
129#endif //__ARCH_X86_X86TRAITS_HH__
130