faults.hh (5857:8cd8e1393990) faults.hh (5858:54f64fb1bd62)
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *

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90 return true;
91 }
92
93 virtual const char * mnemonic() const
94 {
95 return mnem;
96 }
97
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *

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90 return true;
91 }
92
93 virtual const char * mnemonic() const
94 {
95 return mnem;
96 }
97
98 void
99 invoke(ThreadContext * tc)
98 virtual bool isSoft()
100 {
99 {
101 panic("Unimplemented fault %s.\n", name());
100 return false;
102 }
101 }
102
103#if FULL_SYSTEM
104 void invoke(ThreadContext * tc);
105#endif
103 };
104
105 // Base class for x86 faults which behave as if the underlying instruction
106 // didn't happen.
107 class X86Fault : public X86FaultBase
108 {
109 protected:
110 X86Fault(const char * name, const char * mnem,

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145 // Base class for x86 interrupts.
146 class X86Interrupt : public X86FaultBase
147 {
148 protected:
149 X86Interrupt(const char * name, const char * mnem,
150 const uint8_t _vector, uint64_t _errorCode = -1) :
151 X86FaultBase(name, mnem, _vector, _errorCode)
152 {}
106 };
107
108 // Base class for x86 faults which behave as if the underlying instruction
109 // didn't happen.
110 class X86Fault : public X86FaultBase
111 {
112 protected:
113 X86Fault(const char * name, const char * mnem,

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148 // Base class for x86 interrupts.
149 class X86Interrupt : public X86FaultBase
150 {
151 protected:
152 X86Interrupt(const char * name, const char * mnem,
153 const uint8_t _vector, uint64_t _errorCode = -1) :
154 X86FaultBase(name, mnem, _vector, _errorCode)
155 {}
153
154#if FULL_SYSTEM
155 void invoke(ThreadContext * tc);
156#endif
157 };
158
159 class UnimpInstFault : public FaultBase
160 {
161 public:
162 const char * name() const
163 {
164 return "unimplemented_micro";

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316 BitUnion32(PageFaultErrorCode)
317 Bitfield<0> present;
318 Bitfield<1> write;
319 Bitfield<2> user;
320 Bitfield<3> reserved;
321 Bitfield<4> fetch;
322 EndBitUnion(PageFaultErrorCode)
323
156 };
157
158 class UnimpInstFault : public FaultBase
159 {
160 public:
161 const char * name() const
162 {
163 return "unimplemented_micro";

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315 BitUnion32(PageFaultErrorCode)
316 Bitfield<0> present;
317 Bitfield<1> write;
318 Bitfield<2> user;
319 Bitfield<3> reserved;
320 Bitfield<4> fetch;
321 EndBitUnion(PageFaultErrorCode)
322
323 Addr addr;
324
324 public:
325 public:
325 PageFault(uint32_t _errorCode) :
326 X86Fault("Page-Fault", "#PF", 14, _errorCode)
326 PageFault(Addr _addr, uint32_t _errorCode) :
327 X86Fault("Page-Fault", "#PF", 14, _errorCode), addr(_addr)
327 {}
328 {}
328 PageFault(bool present, bool write, bool user,
329 bool reserved, bool fetch) :
330 X86Fault("Page-Fault", "#PF", 14, 0)
329
330 PageFault(Addr _addr, bool present, bool write,
331 bool user, bool reserved, bool fetch) :
332 X86Fault("Page-Fault", "#PF", 14, 0), addr(_addr)
331 {
332 PageFaultErrorCode code = 0;
333 code.present = present;
334 code.write = write;
335 code.user = user;
336 code.reserved = reserved;
337 code.fetch = fetch;
338 errorCode = code;
339 }
333 {
334 PageFaultErrorCode code = 0;
335 code.present = present;
336 code.write = write;
337 code.user = user;
338 code.reserved = reserved;
339 code.fetch = fetch;
340 errorCode = code;
341 }
342
343#if FULL_SYSTEM
344 void invoke(ThreadContext * tc);
345#endif
340 };
341
342 class X87FpExceptionPending : public X86Fault
343 {
344 public:
345 X87FpExceptionPending() :
346 X86Fault("x87 Floating-Point Exception Pending", "#MF", 16)
347 {}

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405 };
406
407 class SoftwareInterrupt : public X86Interrupt
408 {
409 public:
410 SoftwareInterrupt(uint8_t _vector) :
411 X86Interrupt("Software Interrupt", "INTn", _vector)
412 {}
346 };
347
348 class X87FpExceptionPending : public X86Fault
349 {
350 public:
351 X87FpExceptionPending() :
352 X86Fault("x87 Floating-Point Exception Pending", "#MF", 16)
353 {}

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411 };
412
413 class SoftwareInterrupt : public X86Interrupt
414 {
415 public:
416 SoftwareInterrupt(uint8_t _vector) :
417 X86Interrupt("Software Interrupt", "INTn", _vector)
418 {}
419
420 bool isSoft()
421 {
422 return true;
423 }
413 };
414
415 // These faults aren't part of the ISA definition. They trigger filling
416 // the tlb on a miss and are to take the place of a hardware table walker.
417 class FakeITLBFault : public X86Fault
418 {
419 protected:
420 Addr vaddr;

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425
426 // These faults aren't part of the ISA definition. They trigger filling
427 // the tlb on a miss and are to take the place of a hardware table walker.
428 class FakeITLBFault : public X86Fault
429 {
430 protected:
431 Addr vaddr;

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