interrupts.hh revision 5647:b06b49498c79 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
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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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46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_INTERRUPTS_HH__
59#define __ARCH_X86_INTERRUPTS_HH__
60
61#include "arch/x86/apicregs.hh"
62#include "arch/x86/faults.hh"
63#include "cpu/thread_context.hh"
64#include "params/X86LocalApic.hh"
65#include "sim/eventq.hh"
66#include "sim/sim_object.hh"
67
68class ThreadContext;
69
70namespace X86ISA
71{
72
73class Interrupts : public SimObject
74{
75  protected:
76    uint32_t regs[NUM_APIC_REGS];
77
78    class ApicTimerEvent : public Event
79    {
80      public:
81        ApicTimerEvent() : Event()
82        {}
83
84        void process()
85        {
86            warn("Local APIC timer event doesn't do anything!\n");
87        }
88    };
89
90    ApicTimerEvent apicTimerEvent;
91
92  public:
93    typedef X86LocalApicParams Params;
94
95    const Params *
96    params() const
97    {
98        return dynamic_cast<const Params *>(_params);
99    }
100
101    uint32_t readRegNoEffect(ApicRegIndex reg);
102    uint32_t readReg(ApicRegIndex miscReg, ThreadContext *tc);
103
104    void setRegNoEffect(ApicRegIndex reg, uint32_t val);
105    void setReg(ApicRegIndex reg, uint32_t val, ThreadContext *tc);
106
107    Interrupts(Params * p) : SimObject(p)
108    {
109        //Set the local apic DFR to the flat model.
110        regs[APIC_DESTINATION_FORMAT] = (uint32_t)(-1);
111        memset(regs, 0, sizeof(regs));
112        clear_all();
113    }
114
115    int InterruptLevel(uint64_t softint)
116    {
117        panic("Interrupts::InterruptLevel unimplemented!\n");
118        return 0;
119    }
120
121    void post(int int_num, int index)
122    {
123        panic("Interrupts::post unimplemented!\n");
124    }
125
126    void clear(int int_num, int index)
127    {
128        warn("Interrupts::clear unimplemented!\n");
129    }
130
131    void clear_all()
132    {
133        warn("Interrupts::clear_all unimplemented!\n");
134    }
135
136    bool check_interrupts(ThreadContext * tc) const
137    {
138        return false;
139    }
140
141    Fault getInterrupt(ThreadContext * tc)
142    {
143        return NoFault;
144    }
145
146    void updateIntrInfo(ThreadContext * tc)
147    {
148        panic("Interrupts::updateIntrInfo unimplemented!\n");
149    }
150
151    void serialize(std::ostream & os)
152    {
153        panic("Interrupts::serialize unimplemented!\n");
154    }
155
156    void unserialize(Checkpoint * cp, const std::string & section)
157    {
158        panic("Interrupts::unserialize unimplemented!\n");
159    }
160};
161
162};
163
164#endif // __ARCH_X86_INTERRUPTS_HH__
165