diff options
Diffstat (limited to 'arch/x86/machine/trap.h')
| -rw-r--r-- | arch/x86/machine/trap.h | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/arch/x86/machine/trap.h b/arch/x86/machine/trap.h deleted file mode 100644 index c5bdc1f2..00000000 --- a/arch/x86/machine/trap.h +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright (c) 2011-2014 Richard Braun. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * - * Trap (interrupt and exception) handling. - * - * This file is a top header in the inclusion hierarchy, and shouldn't include - * other headers that may cause circular dependencies. - */ - -#ifndef X86_TRAP_H -#define X86_TRAP_H - -#include <machine/page.h> - -/* - * Architecture defined traps. - */ -#define TRAP_DE 0 /* Divide Error */ -#define TRAP_DB 1 /* Debug */ -#define TRAP_NMI 2 /* NMI Interrupt */ -#define TRAP_BP 3 /* Breakpoint */ -#define TRAP_OF 4 /* Overflow */ -#define TRAP_BR 5 /* BOUND Range Exceeded */ -#define TRAP_UD 6 /* Invalid Opcode (Undefined Opcode) */ -#define TRAP_NM 7 /* Device Not Available (No Math Coprocessor) */ -#define TRAP_DF 8 /* Double Fault */ -#define TRAP_TS 10 /* Invalid TSS */ -#define TRAP_NP 11 /* Segment Not Present */ -#define TRAP_SS 12 /* Stack-Segment Fault */ -#define TRAP_GP 13 /* General Protection */ -#define TRAP_PF 14 /* Page Fault */ -#define TRAP_MF 16 /* x87 FPU Floating-Point Error (Math Fault) */ -#define TRAP_AC 17 /* Alignment Check */ -#define TRAP_MC 18 /* Machine Check */ -#define TRAP_XM 19 /* SIMD Floating-Point Exception */ - -/* - * Traps used for handling external interrupts. - */ -#define TRAP_INTR_FIRST 32 -#define TRAP_INTR_LAST 223 - -/* - * System defined traps. - * - * The local APIC assigns one priority every 16 vectors. - */ -#define TRAP_XCALL 238 -#define TRAP_THREAD_SCHEDULE 239 -#define TRAP_CPU_HALT 240 -#define TRAP_LAPIC_PMC_OF 252 -#define TRAP_LAPIC_TIMER 253 -#define TRAP_LAPIC_ERROR 254 -#define TRAP_LAPIC_SPURIOUS 255 - -#define TRAP_NR_VECTORS 256 - -#define TRAP_INTR_TABLE_SIZE 256 - -#define TRAP_STACK_SIZE PAGE_SIZE - -#ifndef __ASSEMBLER__ - -#include <stdint.h> -#include <stdio.h> - -#include <kern/init.h> -#include <kern/macros.h> - -#ifdef __LP64__ - -struct trap_frame { - uint64_t rax; - uint64_t rbx; - uint64_t rcx; - uint64_t rdx; - uint64_t rbp; - uint64_t rsi; - uint64_t rdi; - uint64_t r8; - uint64_t r9; - uint64_t r10; - uint64_t r11; - uint64_t r12; - uint64_t r13; - uint64_t r14; - uint64_t r15; - uint64_t vector; - uint64_t error; - uint64_t rip; - uint64_t cs; - uint64_t rflags; - uint64_t rsp; - uint64_t ss; -} __packed; - -#else /* __LP64__ */ - -struct trap_frame { - uint32_t eax; - uint32_t ebx; - uint32_t ecx; - uint32_t edx; - uint32_t ebp; - uint32_t esi; - uint32_t edi; - uint16_t ds; - uint16_t es; - uint16_t fs; - uint16_t gs; - uint32_t vector; - uint32_t error; - uint32_t eip; - uint32_t cs; - uint32_t eflags; - uint32_t esp; /* esp and ss are undefined if trapped in kernel */ - uint32_t ss; -} __packed; - -#endif /* __LP64__ */ - -/* - * Type for trap handler functions. - */ -typedef void (*trap_handler_fn_t)(struct trap_frame *); - -static inline void -trap_trigger_double_fault(void) -{ - printf("trap: double fault test\n"); - asm volatile("movl $0xdead, %esp; push $0"); -} - -/* - * Unified trap entry point. - */ -void trap_main(struct trap_frame *frame); - -/* - * Register a trap handler. - */ -void trap_register(unsigned int vector, trap_handler_fn_t handler_fn); - -/* - * Display the content of a trap frame. - */ -void trap_frame_show(struct trap_frame *frame); - -/* - * Display the call trace interrupted by the trap of the given frame. - */ -void trap_stack_show(struct trap_frame *frame); - -/* - * Return a pointer to the local interrupt stack. - * - * This function is called by the low level trap handling code. - * - * Return NULL if no stack switching is required. - */ -void * trap_get_interrupt_stack(const struct trap_frame *frame); - -/* - * This init operation provides : - * - initialization of all IDT entries and trap handlers - * - double fault exception support - */ -INIT_OP_DECLARE(trap_setup); - -#endif /* __ASSEMBLER__ */ - -#endif /* X86_TRAP_H */ |