1,0 → 0,0 |
link ../../ia32/src/interrupt.c |
/* |
* Copyright (C) 2006 Martin Decky |
* 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. |
*/ |
|
/** @addtogroup xen32interrupt |
* @{ |
*/ |
/** @file |
*/ |
|
#include <arch/interrupt.h> |
#include <syscall/syscall.h> |
#include <print.h> |
#include <debug.h> |
#include <panic.h> |
#include <func.h> |
#include <cpu.h> |
#include <arch/asm.h> |
#include <mm/tlb.h> |
#include <mm/as.h> |
#include <arch.h> |
#include <symtab.h> |
#include <proc/thread.h> |
#include <proc/task.h> |
#include <synch/spinlock.h> |
#include <arch/ddi/ddi.h> |
#include <ipc/sysipc.h> |
#include <interrupt.h> |
|
/* |
* Interrupt and exception dispatching. |
*/ |
|
void (* disable_irqs_function)(uint16_t irqmask) = NULL; |
void (* enable_irqs_function)(uint16_t irqmask) = NULL; |
void (* eoi_function)(void) = NULL; |
|
void PRINT_INFO_ERRCODE(istate_t *istate) |
{ |
char *symbol = get_symtab_entry(istate->eip); |
|
if (!symbol) |
symbol = ""; |
|
if (CPU) |
printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id); |
else |
printf("----------------EXCEPTION OCCURED----------------\n"); |
|
printf("%%eip: %#x (%s)\n",istate->eip,symbol); |
printf("ERROR_WORD=%#x\n", istate->error_word); |
printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags); |
printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]); |
#ifdef CONFIG_DEBUG_ALLREGS |
printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx); |
#endif |
printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); |
printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); |
} |
|
void null_interrupt(int n, istate_t *istate) |
{ |
fault_if_from_uspace(istate, "unserviced interrupt: %d", n); |
|
PRINT_INFO_ERRCODE(istate); |
panic("unserviced interrupt: %d\n", n); |
} |
|
/** General Protection Fault. */ |
void gp_fault(int n, istate_t *istate) |
{ |
if (TASK) { |
count_t ver; |
|
spinlock_lock(&TASK->lock); |
ver = TASK->arch.iomapver; |
spinlock_unlock(&TASK->lock); |
|
if (CPU->arch.iomapver_copy != ver) { |
/* |
* This fault can be caused by an early access |
* to I/O port because of an out-dated |
* I/O Permission bitmap installed on CPU. |
* Install the fresh copy and restart |
* the instruction. |
*/ |
io_perm_bitmap_install(); |
return; |
} |
fault_if_from_uspace(istate, "general protection fault"); |
} |
|
PRINT_INFO_ERRCODE(istate); |
panic("general protection fault\n"); |
} |
|
void ss_fault(int n, istate_t *istate) |
{ |
fault_if_from_uspace(istate, "stack fault"); |
|
PRINT_INFO_ERRCODE(istate); |
panic("stack fault\n"); |
} |
|
void simd_fp_exception(int n, istate_t *istate) |
{ |
uint32_t mxcsr; |
asm |
( |
"stmxcsr %0;\n" |
:"=m"(mxcsr) |
); |
fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx", |
(unative_t)mxcsr); |
|
PRINT_INFO_ERRCODE(istate); |
printf("MXCSR: %#zx\n",(unative_t)(mxcsr)); |
panic("SIMD FP exception(19)\n"); |
} |
|
void nm_fault(int n, istate_t *istate) |
{ |
#ifdef CONFIG_FPU_LAZY |
scheduler_fpu_lazy_request(); |
#else |
fault_if_from_uspace(istate, "fpu fault"); |
panic("fpu fault"); |
#endif |
} |
|
void syscall(int n, istate_t *istate) |
{ |
panic("Obsolete syscall handler."); |
} |
|
void tlb_shootdown_ipi(int n, istate_t *istate) |
{ |
trap_virtual_eoi(); |
tlb_shootdown_ipi_recv(); |
} |
|
void trap_virtual_enable_irqs(uint16_t irqmask) |
{ |
if (enable_irqs_function) |
enable_irqs_function(irqmask); |
else |
panic("no enable_irqs_function\n"); |
} |
|
void trap_virtual_disable_irqs(uint16_t 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"); |
|
} |
|
static void ipc_int(int n, istate_t *istate) |
{ |
ipc_irq_send_notif(n-IVT_IRQBASE); |
trap_virtual_eoi(); |
} |
|
|
/* Reregister irq to be IPC-ready */ |
void irq_ipc_bind_arch(unative_t irq) |
{ |
if (irq == IRQ_CLK) |
return; |
exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int); |
trap_virtual_enable_irqs(1 << irq); |
} |
|
/** @} |
*/ |
|
Property changes: |
Deleted: svn:special |
-* |
\ No newline at end of property |