0,0 → 1,169 |
/* |
* 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> |
#include <symtab.h> |
#include <proc/thread.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; |
|
#define PRINT_INFO_ERRCODE(x) { \ |
char *symbol = get_symtab_entry(stack[1]); \ |
if (!symbol) \ |
symbol = ""; \ |
printf("----------------EXCEPTION OCCURED----------------\n"); \ |
printf("%%eip: %X (%s)\n",x[1],symbol); \ |
printf("ERROR_WORD=%X\n", x[0]); \ |
printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
x[-2],x[-5],x[-3],x[-4]); \ |
printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
x[-8],x[-9],x[-1],x); \ |
printf("stack: %X, %X, %X, %X\n", x[4], x[5], x[6], x[7]); \ |
printf(" %X, %X, %X, %X\n", x[8], x[9], x[10], x[11]); \ |
} |
|
iroutine trap_register(__u8 n, iroutine f) |
{ |
ASSERT(n < IVT_ITEMS); |
|
iroutine old; |
|
old = ivt[n]; |
ivt[n] = f; |
|
return old; |
} |
|
/* |
* Called directly from the assembler code. |
* CPU is interrupts_disable()'d. |
*/ |
void trap_dispatcher(__u8 n, __native stack[]) |
{ |
ASSERT(n < IVT_ITEMS); |
|
ivt[n](n, stack); |
} |
|
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[]) |
{ |
PRINT_INFO_ERRCODE(stack); |
panic("general protection fault\n"); |
} |
|
void ss_fault(__u8 n, __native stack[]) |
{ |
PRINT_INFO_ERRCODE(stack); |
panic("stack fault\n"); |
} |
|
|
void nm_fault(__u8 n, __native stack[]) |
{ |
#ifdef CONFIG_FPU_LAZY |
scheduler_fpu_lazy_request(); |
#else |
panic("fpu fault"); |
#endif |
} |
|
|
|
void page_fault(__u8 n, __native stack[]) |
{ |
PRINT_INFO_ERRCODE(stack); |
printf("page fault address: %X\n", read_cr2()); |
panic("page fault\n"); |
} |
|
void syscall(__u8 n, __native stack[]) |
{ |
printf("cpu%d: syscall\n", CPU->id); |
thread_usleep(1000); |
} |
|
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"); |
} |
|
void trap_virtual_eoi(void) |
{ |
if (eoi_function) |
eoi_function(); |
else |
panic("no eoi_function\n"); |
|
} |