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/*
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/*
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <arch/interrupt.h>
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#include <arch/interrupt.h>
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#include <print.h>
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#include <print.h>
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#include <debug.h>
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#include <debug.h>
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#include <panic.h>
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#include <panic.h>
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#include <arch/i8259.h>
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#include <arch/i8259.h>
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#include <func.h>
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#include <func.h>
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#include <cpu.h>
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#include <cpu.h>
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#include <arch/asm.h>
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#include <arch/asm.h>
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#include <mm/tlb.h>
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#include <mm/tlb.h>
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#include <arch.h>
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#include <arch.h>
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#include <symtab.h>
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#include <symtab.h>
-
 
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#include <arch/asm.h>
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41
 
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#define PRINT_INFO_ERRCODE(x) { \
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#define PRINT_INFO_ERRCODE(n,x) { \
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    char *symbol = get_symtab_entry(stack[1]); \
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    char *symbol = get_symtab_entry(stack[1]); \
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    if (!symbol) \
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    if (!symbol) \
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        symbol = ""; \
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        symbol = ""; \
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    printf("----------------EXCEPTION OCCURED----------------\n"); \
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    printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); \
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    printf("%%rip: %Q (%s)\n",x[1],symbol); \
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    printf("%%rip: %Q (%s)\n",x[1],symbol); \
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    printf("ERROR_WORD=%Q\n", x[0]); \
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    printf("ERROR_WORD=%Q\n", x[0]); \
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    printf("%%rcs=%Q,flags=%Q\n", x[2], x[3]); \
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    printf("%%rcs=%Q,flags=%Q, %%cr0=%Q\n", x[2], x[3],read_cr0()); \
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    printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",x[-1],x[-2],x[-3]); \
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    printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q\n",x[-2],x[-3],x[-4]); \
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    printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",x[-4],x[-5],x[-6]); \
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    printf("%%rdx=%Q, %%rsi=%Q, %%rdi=%Q\n",x[-5],x[-6],x[-7]); \
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    printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",x[-7],x[-8],x[-9]); \
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    printf("%%r8 =%Q, %%r9 =%Q, %%r10=%Q\n",x[-8],x[-9],x[-10]); \
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    printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",x[-10],x[-11],x[-12]); \
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    printf("%%r11=%Q, %%r12=%Q, %%r13=%Q\n",x[-11],x[-12],x[-13]); \
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    printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",x[-13],x[-14],x); \
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    printf("%%r14=%Q, %%r15=%Q, %%rsp=%Q\n",x[-14],x[-15],x); \
-
 
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    printf("%%rbp=%Q\n",x[-1]); \
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    printf("stack: %Q, %Q, %Q\n", x[5], x[6], x[7]); \
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    printf("stack: %Q, %Q, %Q\n", x[5], x[6], x[7]); \
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    printf("       %Q, %Q, %Q\n", x[8], x[9], x[10]); \
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    printf("       %Q, %Q, %Q\n", x[8], x[9], x[10]); \
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    printf("       %Q, %Q, %Q\n", x[11], x[12], x[13]); \
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    printf("       %Q, %Q, %Q\n", x[14], x[15], x[16]); \
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    printf("       %Q, %Q, %Q\n", x[17], x[18], x[19]); \
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    printf("       %Q, %Q, %Q\n", x[20], x[21], x[22]); \
-
 
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    printf("       %Q, %Q, %Q\n", x[23], x[24], x[25]); \
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        }
63
        }
57
 
64
 
58
/*
65
/*
59
 * Interrupt and exception dispatching.
66
 * Interrupt and exception dispatching.
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 */
67
 */
61
 
68
 
62
static iroutine ivt[IVT_ITEMS];
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static iroutine ivt[IVT_ITEMS];
63
 
70
 
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void (* disable_irqs_function)(__u16 irqmask) = NULL;
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void (* disable_irqs_function)(__u16 irqmask) = NULL;
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void (* enable_irqs_function)(__u16 irqmask) = NULL;
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void (* enable_irqs_function)(__u16 irqmask) = NULL;
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void (* eoi_function)(void) = NULL;
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void (* eoi_function)(void) = NULL;
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74
 
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iroutine trap_register(__u8 n, iroutine f)
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iroutine trap_register(__u8 n, iroutine f)
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{
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{
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    ASSERT(n < IVT_ITEMS);
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    ASSERT(n < IVT_ITEMS);
71
   
78
   
72
    iroutine old;
79
    iroutine old;
73
   
80
   
74
    old = ivt[n];
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    old = ivt[n];
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    ivt[n] = f;
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    ivt[n] = f;
76
   
83
   
77
    return old;
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    return old;
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}
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}
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86
 
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/*
87
/*
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 * Called directly from the assembler code.
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 * Called directly from the assembler code.
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 * CPU is cpu_priority_high().
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 * CPU is cpu_priority_high().
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 */
90
 */
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void trap_dispatcher(__u8 n, __native stack[])
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void trap_dispatcher(__u8 n, __native stack[])
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{
92
{
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    ASSERT(n < IVT_ITEMS);
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    ASSERT(n < IVT_ITEMS);
87
   
94
   
88
    ivt[n](n, stack);
95
    ivt[n](n, stack);
89
}
96
}
90
 
97
 
91
void null_interrupt(__u8 n, __native stack[])
98
void null_interrupt(__u8 n, __native stack[])
92
{
99
{
93
    printf("----------------EXCEPTION OCCURED----------------\n");
100
    printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n,__FUNCTION__); \
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    printf("int %d: null_interrupt\n", n);
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    printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
101
    printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
96
    panic("unserviced interrupt\n");
102
    panic("unserviced interrupt\n");
97
}
103
}
98
 
104
 
99
void gp_fault(__u8 n, __native stack[])
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void gp_fault(__u8 n, __native stack[])
100
{
106
{
101
    PRINT_INFO_ERRCODE(stack);
107
    PRINT_INFO_ERRCODE(n,stack);
102
    panic("general protection fault\n");
108
    panic("general protection fault\n");
103
}
109
}
104
 
110
 
105
void ss_fault(__u8 n, __native stack[])
111
void ss_fault(__u8 n, __native stack[])
106
{
112
{
107
    PRINT_INFO_ERRCODE(stack);
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    PRINT_INFO_ERRCODE(n,stack);
108
    panic("stack fault\n");
114
    panic("stack fault\n");
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}
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}
110
 
116
 
111
 
117
 
112
void nm_fault(__u8 n, __native stack[])
118
void nm_fault(__u8 n, __native stack[])
113
{
119
{
114
    reset_TS_flag();
120
    reset_TS_flag();
115
    if ((CPU->fpu_owner)!=NULL) {  
121
    if (CPU->fpu_owner != NULL) {  
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        fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context));
122
        fpu_lazy_context_save(&CPU->fpu_owner->saved_fpu_context);
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        /* don't prevent migration */
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        (CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */
124
        CPU->fpu_owner->fpu_context_engaged=0;
-
 
125
    }
-
 
126
    if (THREAD->fpu_context_exists)
-
 
127
        fpu_lazy_context_restore(&THREAD->saved_fpu_context);
-
 
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    else {
-
 
129
        fpu_init();
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        THREAD->fpu_context_exists=1;
118
    }
131
    }
119
    if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context));
-
 
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    else {fpu_init();THREAD->fpu_context_exists=1;}
-
 
121
    CPU->fpu_owner=THREAD;
132
    CPU->fpu_owner=THREAD;
122
}
133
}
123
 
134
 
124
 
135
 
125
 
136
 
126
void page_fault(__u8 n, __native stack[])
137
void page_fault(__u8 n, __native stack[])
127
{
138
{
128
    PRINT_INFO_ERRCODE(stack);
139
    PRINT_INFO_ERRCODE(n,stack);
129
    printf("Page fault address: %Q\n", read_cr2());
140
    printf("Page fault address: %Q\n", read_cr2());
130
    panic("page fault\n");
141
    panic("page fault\n");
131
}
142
}
132
 
143
 
133
void syscall(__u8 n, __native stack[])
144
void syscall(__u8 n, __native stack[])
134
{
145
{
135
    printf("cpu%d: syscall\n", CPU->id);
146
    printf("cpu%d: syscall\n", CPU->id);
136
    thread_usleep(1000);
147
    thread_usleep(1000);
137
}
148
}
138
 
149
 
139
void tlb_shootdown_ipi(__u8 n, __native stack[])
150
void tlb_shootdown_ipi(__u8 n, __native stack[])
140
{
151
{
141
    trap_virtual_eoi();
152
    trap_virtual_eoi();
142
    tlb_shootdown_ipi_recv();
153
    tlb_shootdown_ipi_recv();
143
}
154
}
144
 
155
 
145
void wakeup_ipi(__u8 n, __native stack[])
156
void wakeup_ipi(__u8 n, __native stack[])
146
{
157
{
147
    trap_virtual_eoi();
158
    trap_virtual_eoi();
148
}
159
}
149
 
160
 
150
void trap_virtual_enable_irqs(__u16 irqmask)
161
void trap_virtual_enable_irqs(__u16 irqmask)
151
{
162
{
152
    if (enable_irqs_function)
163
    if (enable_irqs_function)
153
        enable_irqs_function(irqmask);
164
        enable_irqs_function(irqmask);
154
    else
165
    else
155
        panic("no enable_irqs_function\n");
166
        panic("no enable_irqs_function\n");
156
}
167
}
157
 
168
 
158
void trap_virtual_disable_irqs(__u16 irqmask)
169
void trap_virtual_disable_irqs(__u16 irqmask)
159
{
170
{
160
    if (disable_irqs_function)
171
    if (disable_irqs_function)
161
        disable_irqs_function(irqmask);
172
        disable_irqs_function(irqmask);
162
    else
173
    else
163
        panic("no disable_irqs_function\n");
174
        panic("no disable_irqs_function\n");
164
}
175
}
165
 
176
 
166
void trap_virtual_eoi(void)
177
void trap_virtual_eoi(void)
167
{
178
{
168
    if (eoi_function)
179
    if (eoi_function)
169
        eoi_function();
180
        eoi_function();
170
    else
181
    else
171
        panic("no eoi_function\n");
182
        panic("no eoi_function\n");
172
 
183
 
173
}
184
}
174
 
185