0,0 → 1,162 |
/* |
* Copyright (C) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <arch/interrupt.h> |
#include <print.h> |
#include <debug.h> |
#include <panic.h> |
#include <arch/i8259.h> |
#include <func.h> |
#include <cpu.h> |
#include <arch/asm.h> |
#include <mm/tlb.h> |
#include <arch.h> |
|
/* |
* Interrupt and exception dispatching. |
*/ |
|
static iroutine ivt[IVT_ITEMS]; |
|
void (* disable_irqs_function)(__u16 irqmask) = NULL; |
void (* enable_irqs_function)(__u16 irqmask) = NULL; |
void (* eoi_function)(void) = NULL; |
|
iroutine trap_register(__u8 n, iroutine f) |
{ |
ASSERT(n < IVT_ITEMS); |
|
iroutine old; |
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old = ivt[n]; |
ivt[n] = f; |
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return old; |
} |
|
/* |
* Called directly from the assembler code. |
* CPU is cpu_priority_high(). |
*/ |
void trap_dispatcher(__u8 n, __native stack[]) |
{ |
ASSERT(n < IVT_ITEMS); |
|
ivt[n](n, stack); |
} |
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void null_interrupt(__u8 n, __native stack[]) |
{ |
printf("int %d: null_interrupt\n", n); |
printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
panic("unserviced interrupt\n"); |
} |
|
void gp_fault(__u8 n, __native stack[]) |
{ |
printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack); |
printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
panic("general protection fault\n"); |
} |
|
void ss_fault(__u8 n, __native stack[]) |
{ |
printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]); |
printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack); |
printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]); |
panic("stack fault\n"); |
} |
|
|
void nm_fault(__u8 n, __native stack[]) |
{ |
reset_TS_flag(); |
if ((CPU->fpu_owner)!=NULL) { |
fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context)); |
(CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */ |
} |
if(THREAD->fpu_context_exists) fpu_lazy_context_restore(&(THREAD->saved_fpu_context)); |
else {fpu_init();THREAD->fpu_context_exists=1;} |
CPU->fpu_owner=THREAD; |
} |
|
|
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void page_fault(__u8 n, __native stack[]) |
{ |
printf("page fault address: %Q\n", read_cr2()); |
printf("ERROR_WORD=%Q, %%rip=%Q, %%rcs=%Q, flags=%Q\n", stack[0], stack[1], stack[2], stack[3]); |
printf("%%rax=%Q, %%rbx=%Q, %%rcx=%Q, %%rdx=%Q,\n%%rsi=%Q, %%rdi=%Q\n", |
stack[-1], stack[-2], stack[-3], stack[-4], stack[-5], stack[-6]); |
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printf("stack: %X, %X, %X, %X\n", stack[5], stack[6], stack[7], stack[8]); |
panic("page fault\n"); |
} |
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void syscall(__u8 n, __native stack[]) |
{ |
printf("cpu%d: syscall\n", CPU->id); |
thread_usleep(1000); |
} |
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void tlb_shootdown_ipi(__u8 n, __native stack[]) |
{ |
trap_virtual_eoi(); |
tlb_shootdown_ipi_recv(); |
} |
|
void wakeup_ipi(__u8 n, __native stack[]) |
{ |
trap_virtual_eoi(); |
} |
|
void trap_virtual_enable_irqs(__u16 irqmask) |
{ |
if (enable_irqs_function) |
enable_irqs_function(irqmask); |
else |
panic("no enable_irqs_function\n"); |
} |
|
void trap_virtual_disable_irqs(__u16 irqmask) |
{ |
if (disable_irqs_function) |
disable_irqs_function(irqmask); |
else |
panic("no disable_irqs_function\n"); |
} |
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void trap_virtual_eoi(void) |
{ |
if (eoi_function) |
eoi_function(); |
else |
panic("no eoi_function\n"); |
|
} |