x86_traits.hh revision 6214:1ec0ec8933ae 
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42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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 <assert.h>
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 = 5;
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
78    const int NumMMXRegs = 8;
79    const int NumXMMRegs = 16;
80    const int NumMicroFpRegs = 8;
81
82    const int NumCRegs = 16;
83    const int NumDRegs = 8;
84
85    const int NumSegments = 6;
86    const int NumSysSegments = 4;
87
88    const Addr IntAddrPrefixMask = ULL(0xffffffff00000000);
89    const Addr IntAddrPrefixCPUID = ULL(0x100000000);
90    const Addr IntAddrPrefixMSR = ULL(0x200000000);
91    const Addr IntAddrPrefixIO = ULL(0x300000000);
92
93    const Addr PhysAddrPrefixIO = ULL(0x8000000000000000);
94    const Addr PhysAddrPrefixPciConfig = ULL(0xC000000000000000);
95    const Addr PhysAddrPrefixLocalAPIC = ULL(0x2000000000000000);
96    const Addr PhysAddrPrefixInterrupts = ULL(0xA000000000000000);
97    // Each APIC gets two pages. One page is used for local apics to field
98    // accesses from the CPU, and the other is for all APICs to communicate.
99    const Addr PhysAddrAPICRangeSize = 1 << 12;
100
101    static inline Addr
102    x86IOAddress(const uint32_t port)
103    {
104        return PhysAddrPrefixIO | port;
105    }
106
107    static inline Addr
108    x86PciConfigAddress(const uint32_t addr)
109    {
110        return PhysAddrPrefixPciConfig | addr;
111    }
112
113    static inline Addr
114    x86LocalAPICAddress(const uint8_t id, const uint16_t addr)
115    {
116        assert(addr < (1 << 12));
117        return PhysAddrPrefixLocalAPIC | (id * (1 << 12)) | addr;
118    }
119
120    static inline Addr
121    x86InterruptAddress(const uint8_t id, const uint16_t addr)
122    {
123        assert(addr < PhysAddrAPICRangeSize);
124        return PhysAddrPrefixInterrupts | (id * PhysAddrAPICRangeSize) | addr;
125    }
126}
127
128#endif //__ARCH_X86_X86TRAITS_HH__
129