| 0,0 → 1,172 |
|---|
| /* |
| * 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 <mm/as.h> |
| #include <arch.h> |
| #include <symtab.h> |
| #include <arch/asm.h> |
| #include <proc/scheduler.h> |
| #include <proc/thread.h> |
| #include <proc/task.h> |
| #include <synch/spinlock.h> |
| #include <arch/ddi/ddi.h> |
| #include <interrupt.h> |
| #include <ipc/irq.h> |
| |
| void print_info_errcode(int n, istate_t *istate) |
| { |
| char *symbol; |
| /* __u64 *x = &istate->stack[0]; */ |
| |
| if (!(symbol=get_symtab_entry(istate->rip))) |
| symbol = ""; |
| |
| printf("-----EXCEPTION(%d) OCCURED----- ( %s )\n",n, __FUNCTION__); |
| printf("%%rip: %#llX (%s)\n",istate->rip, symbol); |
| printf("ERROR_WORD=%#llX\n", istate->error_word); |
| printf("%%rcs=%#llX, flags=%#llX, %%cr0=%#llX\n", istate->cs, istate->rflags,read_cr0()); |
| printf("%%rax=%#llX, %%rcx=%#llX, %%rdx=%#llX\n",istate->rax,istate->rcx,istate->rdx); |
| printf("%%rsi=%#llX, %%rdi=%#llX, %%r8 =%#llX\n",istate->rsi,istate->rdi,istate->r8); |
| printf("%%r9 =%#llX, %%r10 =%#llX, %%r11=%#llX\n",istate->r9,istate->r10,istate->r11); |
| #ifdef CONFIG_DEBUG_ALLREGS |
| printf("%%r12=%#llX, %%r13=%#llX, %%r14=%#llX\n",istate->r12,istate->r13,istate->r14); |
| printf("%%r15=%#llX, %%rbx=%#llX, %%rbp=%#llX\n",istate->r15,istate->rbx,&istate->rbp); |
| #endif |
| printf("%%rsp=%#llX\n",&istate->stack[0]); |
| } |
| |
| /* |
| * Interrupt and exception dispatching. |
| */ |
| |
| void (* disable_irqs_function)(__u16 irqmask) = NULL; |
| void (* enable_irqs_function)(__u16 irqmask) = NULL; |
| void (* eoi_function)(void) = NULL; |
| |
| void null_interrupt(int n, istate_t *istate) |
| { |
| print_info_errcode(n, istate); |
| panic("unserviced interrupt\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; |
| } |
| } |
| |
| print_info_errcode(n, istate); |
| panic("general protection fault\n"); |
| } |
| |
| void ss_fault(int n, istate_t *istate) |
| { |
| print_info_errcode(n, istate); |
| panic("stack fault\n"); |
| } |
| |
| void nm_fault(int n, istate_t *istate) |
| { |
| #ifdef CONFIG_FPU_LAZY |
| scheduler_fpu_lazy_request(); |
| #else |
| panic("fpu fault"); |
| #endif |
| } |
| |
| void tlb_shootdown_ipi(int n, istate_t *istate) |
| { |
| trap_virtual_eoi(); |
| tlb_shootdown_ipi_recv(); |
| } |
| |
| 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"); |
| |
| } |
| |
| static void ipc_int(int n, istate_t *istate) |
| { |
| trap_virtual_eoi(); |
| ipc_irq_send_notif(n-IVT_IRQBASE); |
| } |
| |
| |
| /* Reregister irq to be IPC-ready */ |
| void irq_ipc_bind_arch(__native irq) |
| { |
| if (irq == IRQ_CLK) |
| return; |
| exc_register(IVT_IRQBASE+irq, "ipc_int", ipc_int); |
| } |