x86: add basic interrupt support
This commit also fixes the fun little size bug in segment.S where i subtracted the end from the start address of the GDT instead of the other way round which resulted in a gigantic overflow :)main
parent
347bb5cc9c
commit
613c28a965
GPG Key ID:
EC22E476DC2D3D84
@ -0,0 +1,138 @@
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/* See the end of this file for copyright and license terms. */
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#pragma once
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/** @brief Total number of interrupt lines on x86. */
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#define X86_INTR_COUNT 256
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/*
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* These are all reserved interrupt/exception vector numbers for x86 Protected Mode.
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* Taken from the Intel Architecture Software Developer's Manual, vol. 3, table 6-1.
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*/
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/** @brief Divide Error */
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#define X86_VECT_DE 0
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/** @brief Debug Exception */
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#define X86_VECT_DB 1
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/** @brief Nonmaskable Interrupt */
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#define X86_VECT_NMI 2
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/** @brief Breakpoint */
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#define X86_VECT_BP 3
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/** @brief Overflow */
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#define X86_VECT_OF 4
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/** @brief BOUND Range Exceeded */
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#define X86_VECT_BR 5
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/** @brief Invalid Opcode (Undefined Opcode) */
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#define X86_VECT_UD 6
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/** @brief Device Not Available (No Math Coprocessor) */
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#define X86_VECT_NM 7
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/** @brief Double Fault */
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#define X86_VECT_DF 8
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/* 9 is reserved (Coprocessor Segment Overrun) */
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/** @brief Invalid TSS */
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#define X86_VECT_TS 10
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/** @brief Segment Not Present */
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#define X86_VECT_NP 11
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/** @brief Stack-Segment Fault */
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#define X86_VECT_SS 12
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/** @brief General Protection */
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#define X86_VECT_GP 13
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/** @brief Page Fault */
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#define X86_VECT_PF 14
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/* 15 is reserved */
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/** @brief x87 FPU Floating Point Error (Math Fault) */
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#define X86_VECT_MF 16
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/** @brief Alignment Check */
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#define X86_VECT_AC 17
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/** @brief Machine Check */
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#define X86_VECT_MC 18
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/** @brief SIMD Floating-Point Exception */
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#define X86_VECT_XM 19
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/** @brief Virtualization Exception */
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#define X86_VECT_VE 20
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/** @brief Control Protection Exception */
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#define X86_VECT_CP 21
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/* 22-31 are reserved, IRQs start at 32 */
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#define X86_VECT_IRQ_BASE 32
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#ifndef _ASM_SOURCE
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#include <gay/cdefs.h>
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#include <gay/types.h>
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__always_inline void enable_interrupts(void)
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{
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__asm__ volatile("sti");
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}
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__always_inline void disable_interrupts(void)
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{
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__asm__ volatile("cli");
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}
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/**
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* @brief A single entry in the Interrupt Descriptor Table as laid out in hardware.
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* Luckily, this is not quite as deranged as the GDT layout.
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*/
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struct x86_idt_entry {
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u16 offset0; /**< @brief ptr to handler, bits 0:15 */
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u16 selector; /**< @brief GDT selector, use `X86_KERN_CS` */
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u8 _zero; /**< @brief always 0 */
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u8 attr;
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#define X86_IDT_GATE_TASK32 0x5u
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#define X86_IDT_GATE_INTR16 0x6u
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#define X86_IDT_GATE_TRAP16 0x7u
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#define X86_IDT_GATE_INTR32 0xeu
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#define X86_IDT_GATE_TRAP32 0xfu
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#define X86_IDT_STORAGE (1u << 4) /* 0 for interrupt/trap, 1 for system gate */
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#define X86_IDT_DPL(x) (((x) & 3u) << 5)
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#define X86_IDT_PRESENT (1u << 7)
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u16 offset1; /**< @brief ptr to handler, bits 16:31 */
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} __packed;
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/* idt.S */
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extern struct x86_idt_entry x86_idt[X86_INTR_COUNT];
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/** @brief Disable the Programmable Interrupt Controller. */
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void x86_disable_pic(void);
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/**
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* @brief Set a gate handler in the Interrupt Descriptor Table.
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*
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* @param vector Vector number in the IDT
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* @param handler Address of the handler function
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* @param flags Flags for the IDT entry
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*/
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void x86_set_gate(u8 vector, void (*handler)(void), u8 flags);
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/**
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* @brief Set a trap gate handler in the Interrupt Descriptor table.
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*
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* @param vector Vector number in the IDT
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* @param isr Address of the interrupt service routine
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*/
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void x86_set_trap_gate(u8 vector, void (*isr)(void));
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/** @brief Set up the IDT and load it into IDTR. */
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void x86_setup_interrupts(void);
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/** @brief Internal routine performing the actual LIDT instruction. */
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extern void x86_load_idt(void);
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#endif /* not _ASM_SOURCE */
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/*
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* This file is part of GayBSD.
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* Copyright (c) 2021 fef <owo@fef.moe>.
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*
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* GayBSD is nonviolent software: you may only use, redistribute, and/or
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* modify it under the terms of the Cooperative Nonviolent Public License
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* (CNPL) as found in the LICENSE file in the source code root directory
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* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
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* of the license, or (at your option) any later version.
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*
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* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPL for details.
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*/
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@ -0,0 +1,86 @@
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/* See the end of this file for copyright and license terms. */
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#pragma once
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#include <gay/types.h>
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/** @brief I/O port number for the PIC1 command channel */
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#define X86_PORT_PIC1_CMD 0x20
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/** @brief I/O port number for the PIC1 data channel */
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#define X86_PORT_PIC1_DATA 0x21
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/** @brief I/O port number for the keyboard data channel */
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#define X86_PORT_KBD_DATA 0x60
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/** @brief I/O port number for the keyboard status channel */
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#define X86_PORT_KBD_STATUS 0x64
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/** @brief I/O port number for the PIC2 command channel */
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#define X86_PORT_PIC2_CMD 0xa0
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/** @brief I/O port number for the PIC2 data channel */
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#define X86_PORT_PIC2_DATA 0xa1
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#ifndef _ASM_SOURCE
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/**
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* @brief Read a byte from the I/O bus.
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*
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* @param port Port number
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* @return The byte that was read
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*/
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extern u8 x86_inb(u16 port);
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/**
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* @brief Read a word from the I/O bus.
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*
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* @param port Port number
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* @return The word that was read
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*/
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extern u16 x86_inw(u16 port);
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/**
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* @brief Read a longword from the I/O bus.
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*
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* @param port Port number
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* @return The longword that was read
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*/
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extern u32 x86_inl(u16 port);
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/**
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* @brief Write a byte to the I/O bus.
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*
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* @param port Port number
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* @param data Byte to send through the port
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*/
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extern void x86_outb(u16 port, u8 data);
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/**
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* @brief Write a word to the I/O bus.
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*
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* @param port Port number
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* @param data Word to send through the port
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*/
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extern void x86_outw(u16 port, u16 data);
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/**
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* @brief Write a longword to the I/O bus.
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*
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* @param port Port number
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* @param data Longword to send through the port
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*/
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extern void x86_outl(u16 port, u32 data);
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#endif /* not _ASM_SOURCE */
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/*
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* This file is part of GayBSD.
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* Copyright (c) 2021 fef <owo@fef.moe>.
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*
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* GayBSD is nonviolent software: you may only use, redistribute, and/or
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* modify it under the terms of the Cooperative Nonviolent Public License
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* (CNPL) as found in the LICENSE file in the source code root directory
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* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
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* of the license, or (at your option) any later version.
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*
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* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPL for details.
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*/
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@ -0,0 +1,93 @@
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/* See the end of this file for copyright and license terms. */
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#pragma once
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/**
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* @file include/arch/trap.h
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* @brief Low level system interrupt handler definitions.
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*
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* The functions prefixed with an underscore are implemented in assembly and
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* are what is actually referenced in the IDT. They call the respective C
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* handler (the one without the underscore), and then return from the interrupt.
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* Yes i know that there is the thing where compilers automatically prefix C
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* symbols with an underscore which potentially leads to a name clash, but clang
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* doesn't do that. That is, i hope it doesn't, but i checked and it doesn't
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* appear to be the case. Trust me, it's fine.
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*/
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#include <gay/cdefs.h>
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#include <gay/types.h>
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extern void _x86_isr_divide_error(void);
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__asmlink void x86_isr_divide_error(void);
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extern void _x86_isr_debug_exception(void);
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__asmlink void x86_isr_debug_exception(void);
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extern void _x86_isr_nmi(void);
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__asmlink void x86_isr_nmi(void);
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extern void _x86_isr_breakpoint(void);
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__asmlink void x86_isr_breakpoint(void);
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extern void _x86_isr_overflow(void);
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__asmlink void x86_isr_overflow(void);
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extern void _x86_isr_bound_range_exceeded(void);
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__asmlink void x86_isr_bound_range_exceeded(void);
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extern void _x86_isr_invalid_opcode(void);
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__asmlink void x86_isr_invalid_opcode(void);
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extern void _x86_isr_device_not_available(void);
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__asmlink void x86_isr_device_not_available(void);
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extern void _x86_isr_double_fault(void);
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__asmlink void x86_isr_double_fault(u32 error_code);
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extern void _x86_isr_invalid_tss(void);
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__asmlink void x86_isr_invalid_tss(u32 error_code);
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extern void _x86_isr_segment_not_present(void);
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__asmlink void x86_isr_segment_not_present(u32 error_code);
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extern void _x86_isr_stack_segment_fault(void);
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__asmlink void x86_isr_stack_segment_fault(u32 error_code);
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extern void _x86_isr_general_protection(void);
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__asmlink void x86_isr_general_protection(u32 error_code);
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extern void _x86_isr_page_fault(void);
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__asmlink void x86_isr_page_fault(u32 error_code);
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extern void _x86_isr_x87_fpu_error(void);
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__asmlink void x86_isr_x87_fpu_error(void);
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extern void _x86_isr_alignment_check(void);
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__asmlink void x86_isr_alignment_check(u32 error_code);
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extern void _x86_isr_machine_check(void);
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__asmlink void x86_isr_machine_check(void);
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extern void _x86_isr_simd_floating_point_exception(void);
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__asmlink void x86_isr_simd_floating_point_exception(void);
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extern void _x86_isr_virtualization_exception(void);
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__asmlink void x86_isr_virtualization_exception(void);
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extern void _x86_isr_control_protection_exception(void);
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__asmlink void x86_isr_control_protection_exception(u32 error_code);
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/*
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* This file is part of GayBSD.
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* Copyright (c) 2021 fef <owo@fef.moe>.
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*
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* GayBSD is nonviolent software: you may only use, redistribute, and/or
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* modify it under the terms of the Cooperative Nonviolent Public License
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* (CNPL) as found in the LICENSE file in the source code root directory
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* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
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* of the license, or (at your option) any later version.
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*
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* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPL for details.
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*/
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@ -0,0 +1,21 @@
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# See the end of this file for copyright and license terms.
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target_sources(gay_arch PRIVATE
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entry.S
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idt.S
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interrupt.c
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port.S
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trap.c
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)
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# This file is part of GayBSD.
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# Copyright (c) 2021 fef <owo@fef.moe>.
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#
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# GayBSD is nonviolent software: you may only use, redistribute, and/or
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# modify it under the terms of the Cooperative Nonviolent Public License
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# (CNPL) as found in the LICENSE file in the source code root directory
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# or at <https://git.pixie.town/thufie/npl-builder>; either version 7
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# of the license, or (at your option) any later version.
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#
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# GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
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# permitted by applicable law. See the CNPL for details.
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@ -0,0 +1,175 @@
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/* See the end of this file for copyright and license terms. */
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#include <arch/interrupt.h>
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#include <asm/common.h>
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.text
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/*
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* low level entry points, this is what gets put into the IDT
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*/
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ASM_ENTRY(_x86_isr_divide_error)
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cld
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call x86_isr_divide_error
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iret
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ASM_END(_x86_isr_divide_error)
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ASM_ENTRY(_x86_isr_debug_exception)
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cld
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call x86_isr_debug_exception
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iret
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ASM_END(_x86_isr_debug_exception)
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ASM_ENTRY(_x86_isr_nmi)
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cld
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call x86_isr_nmi
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iret
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ASM_END(_x86_isr_nmi)
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ASM_ENTRY(_x86_isr_breakpoint)
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cld
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call x86_isr_breakpoint
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iret
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ASM_END(_x86_isr_breakpoint)
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ASM_ENTRY(_x86_isr_overflow)
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cld
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call x86_isr_overflow
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iret
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ASM_END(_x86_isr_overflow)
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ASM_ENTRY(_x86_isr_bound_range_exceeded)
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cld
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call x86_isr_bound_range_exceeded
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iret
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ASM_END(_x86_isr_bound_range_exceeded)
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ASM_ENTRY(_x86_isr_invalid_opcode)
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cld
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call x86_isr_invalid_opcode
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iret
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ASM_END(_x86_isr_invalid_opcode)
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ASM_ENTRY(_x86_isr_device_not_available)
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cld
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call x86_isr_device_not_available
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iret
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ASM_END(_x86_isr_device_not_available)
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ASM_ENTRY(_x86_isr_double_fault)
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cld
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call x86_isr_double_fault
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add $4, %esp
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iret
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ASM_END(_x86_isr_double_fault)
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ASM_ENTRY(_x86_isr_invalid_tss)
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cld
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call x86_isr_invalid_tss
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add $4, %esp
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iret
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ASM_END(_x86_isr_invalid_tss)
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ASM_ENTRY(_x86_isr_segment_not_present)
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cld
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call x86_isr_segment_not_present
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add $4, %esp
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iret
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ASM_END(_x86_isr_segment_not_present)
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ASM_ENTRY(_x86_isr_stack_segment_fault)
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cld
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call x86_isr_stack_segment_fault
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add $4, %esp
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iret
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ASM_END(_x86_isr_stack_segment_fault)
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ASM_ENTRY(_x86_isr_general_protection)
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cld
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call x86_isr_general_protection
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add $4, %esp
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iret
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ASM_END(_x86_isr_general_protection)
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ASM_ENTRY(_x86_isr_page_fault)
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cld
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call x86_isr_page_fault
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add $4, %esp
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iret
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ASM_END(_x86_isr_page_fault)
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ASM_ENTRY(_x86_isr_x87_fpu_error)
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cld
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call x86_isr_x87_fpu_error
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iret
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ASM_END(_x86_isr_fpu_error)
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ASM_ENTRY(_x86_isr_alignment_check)
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cld
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call x86_isr_alignment_check
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add $4, %esp
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iret
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ASM_END(_x86_isr_alignment_check)
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ASM_ENTRY(_x86_isr_machine_check)
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cld
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call x86_isr_machine_check
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iret
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ASM_END(_x86_isr_machine_check)
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ASM_ENTRY(_x86_isr_simd_floating_point_exception)
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cld
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call x86_isr_simd_floating_point_exception
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iret
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ASM_END(_x86_isr_simd_floating_point_exception)
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|
||||
ASM_ENTRY(_x86_isr_virtualization_exception)
|
||||
cld
|
||||
call x86_isr_virtualization_exception
|
||||
iret
|
||||
ASM_END(_x86_isr_virtualization_exception)
|
||||
|
||||
ASM_ENTRY(_x86_isr_control_protection_exception)
|
||||
cld
|
||||
call x86_isr_control_protection_exception
|
||||
add $4, %esp
|
||||
iret
|
||||
ASM_END(_x86_isr_control_protection_exception)
|
||||
|
||||
/* trap.c */
|
||||
.extern x86_isr_divide_error
|
||||
.extern x86_isr_debug_exception
|
||||
.extern x86_isr_nmi
|
||||
.extern x86_isr_breakpoint
|
||||
.extern x86_isr_overflow
|
||||
.extern x86_isr_bound_range_exceeded
|
||||
.extern x86_isr_invalid_opcode
|
||||
.extern x86_isr_device_not_available
|
||||
.extern x86_isr_double_fault
|
||||
.extern x86_isr_invalid_tss
|
||||
.extern x86_isr_segment_not_present
|
||||
.extern x86_isr_stack_segment_fault
|
||||
.extern x86_isr_general_protection
|
||||
.extern x86_isr_page_fault
|
||||
.extern x86_isr_x87_fpu_error
|
||||
.extern x86_isr_alignment_check
|
||||
.extern x86_isr_machine_check
|
||||
.extern x86_isr_simd_floating_point_exception
|
||||
.extern x86_isr_virtualization_exception
|
||||
.extern x86_isr_control_protection_exception
|
||||
|
||||
/*
|
||||
* This file is part of GayBSD.
|
||||
* Copyright (c) 2021 fef <owo@fef.moe>.
|
||||
*
|
||||
* GayBSD is nonviolent software: you may only use, redistribute, and/or
|
||||
* modify it under the terms of the Cooperative Nonviolent Public License
|
||||
* (CNPL) as found in the LICENSE file in the source code root directory
|
||||
* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
|
||||
* of the license, or (at your option) any later version.
|
||||
*
|
||||
* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
|
||||
* permitted by applicable law. See the CNPL for details.
|
||||
*/
|
||||
@ -0,0 +1,44 @@
|
||||
/* See the end of this file for copyright and license terms. */
|
||||
|
||||
#include <arch/interrupt.h>
|
||||
|
||||
#include <asm/common.h>
|
||||
|
||||
.text
|
||||
|
||||
/* void x86_load_idt(void) */
|
||||
ASM_ENTRY(x86_load_idt)
|
||||
lidt x86_idt_desc
|
||||
ret
|
||||
ASM_END(x86_load_idt)
|
||||
|
||||
.data
|
||||
|
||||
.align 4
|
||||
.word 0 /* padding */
|
||||
x86_idt_desc:
|
||||
.word x86_idt_end - x86_idt - 1 /* limit (size in bytes - 1) */
|
||||
.long x86_idt /* base */
|
||||
|
||||
.size x86_idt_desc, . - x86_idt_desc
|
||||
|
||||
.align 16
|
||||
.global x86_idt
|
||||
x86_idt:
|
||||
.fill X86_INTR_COUNT, 8, 0 /* empty idt, initialized dynamically */
|
||||
x86_idt_end:
|
||||
.size x86_idt, . - x86_idt
|
||||
|
||||
/*
|
||||
* This file is part of GayBSD.
|
||||
* Copyright (c) 2021 fef <owo@fef.moe>.
|
||||
*
|
||||
* GayBSD is nonviolent software: you may only use, redistribute, and/or
|
||||
* modify it under the terms of the Cooperative Nonviolent Public License
|
||||
* (CNPL) as found in the LICENSE file in the source code root directory
|
||||
* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
|
||||
* of the license, or (at your option) any later version.
|
||||
*
|
||||
* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
|
||||
* permitted by applicable law. See the CNPL for details.
|
||||
*/
|
||||
@ -0,0 +1,77 @@
|
||||
/* See the end of this file for copyright and license terms. */
|
||||
|
||||
#include <arch/interrupt.h>
|
||||
#include <arch/port.h>
|
||||
#include <arch/segment.h>
|
||||
#include <arch/trap.h>
|
||||
|
||||
#include <gay/kprintf.h>
|
||||
#include <gay/types.h>
|
||||
|
||||
void x86_setup_interrupts(void)
|
||||
{
|
||||
x86_disable_pic();
|
||||
|
||||
x86_set_trap_gate(X86_VECT_DE, _x86_isr_divide_error);
|
||||
x86_set_trap_gate(X86_VECT_DB, _x86_isr_debug_exception);
|
||||
x86_set_trap_gate(X86_VECT_NMI, _x86_isr_nmi);
|
||||
x86_set_trap_gate(X86_VECT_BP, _x86_isr_breakpoint);
|
||||
x86_set_trap_gate(X86_VECT_OF, _x86_isr_overflow);
|
||||
x86_set_trap_gate(X86_VECT_BR, _x86_isr_bound_range_exceeded);
|
||||
x86_set_trap_gate(X86_VECT_UD, _x86_isr_invalid_opcode);
|
||||
x86_set_trap_gate(X86_VECT_NM, _x86_isr_device_not_available);
|
||||
x86_set_trap_gate(X86_VECT_DF, _x86_isr_double_fault);
|
||||
x86_set_trap_gate(X86_VECT_TS, _x86_isr_invalid_tss);
|
||||
x86_set_trap_gate(X86_VECT_NP, _x86_isr_segment_not_present);
|
||||
x86_set_trap_gate(X86_VECT_SS, _x86_isr_stack_segment_fault);
|
||||
x86_set_trap_gate(X86_VECT_GP, _x86_isr_general_protection);
|
||||
x86_set_trap_gate(X86_VECT_PF, _x86_isr_page_fault);
|
||||
x86_set_trap_gate(X86_VECT_MF, _x86_isr_x87_fpu_error);
|
||||
x86_set_trap_gate(X86_VECT_AC, _x86_isr_alignment_check);
|
||||
x86_set_trap_gate(X86_VECT_MC, _x86_isr_machine_check);
|
||||
x86_set_trap_gate(X86_VECT_XM, _x86_isr_simd_floating_point_exception);
|
||||
x86_set_trap_gate(X86_VECT_VE, _x86_isr_virtualization_exception);
|
||||
x86_set_trap_gate(X86_VECT_CP, _x86_isr_control_protection_exception);
|
||||
|
||||
x86_load_idt();
|
||||
enable_interrupts();
|
||||
}
|
||||
|
||||
void x86_set_gate(u8 vector, void (*handler)(void), u8 flags)
|
||||
{
|
||||
struct x86_idt_entry *entry = &x86_idt[vector];
|
||||
entry->offset0 = (uintptr_t)handler & 0xffff;
|
||||
entry->offset1 = ((uintptr_t)handler >> 16) & 0xffff;
|
||||
entry->selector = X86_KERN_CS;
|
||||
entry->_zero = 0;
|
||||
entry->attr = flags;
|
||||
}
|
||||
|
||||
void x86_set_trap_gate(u8 vector, void (*isr)(void))
|
||||
{
|
||||
u8 flags = X86_IDT_PRESENT | X86_IDT_GATE_TRAP32 | X86_IDT_DPL(0);
|
||||
if (vector < X86_VECT_IRQ_BASE)
|
||||
x86_set_gate(vector, isr, flags);
|
||||
else
|
||||
kprintf("Tried to assign non-trap vector %d to a trap gate\n", vector);
|
||||
}
|
||||
|
||||
void x86_disable_pic(void)
|
||||
{
|
||||
x86_outb(X86_PORT_PIC2_DATA, 0xff);
|
||||
x86_outb(X86_PORT_PIC1_DATA, 0xff);
|
||||
}
|
||||
|
||||
/*
|
||||
* This file is part of GayBSD.
|
||||
* Copyright (c) 2021 fef <owo@fef.moe>.
|
||||
*
|
||||
* GayBSD is nonviolent software: you may only use, redistribute, and/or
|
||||
* modify it under the terms of the Cooperative Nonviolent Public License
|
||||
* (CNPL) as found in the LICENSE file in the source code root directory
|
||||
* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
|
||||
* of the license, or (at your option) any later version.
|
||||
*
|
||||
* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
|
||||
* permitted by applicable law. See the CNPL for details.
|
||||
*/
|
||||
@ -0,0 +1,67 @@
|
||||
/* See the end of this file for copyright and license terms. */
|
||||
|
||||
#include <asm/common.h>
|
||||
|
||||
.text
|
||||
|
||||
/* u8 x86_inb(u16 port); */
|
||||
ASM_ENTRY(x86_inb)
|
||||
mov 4(%esp), %edx
|
||||
xor %eax, %eax
|
||||
inb %dx, %al
|
||||
ret
|
||||
ASM_END(x86_inb)
|
||||
|
||||
/* u16 x86_inw(u16 port); */
|
||||
ASM_ENTRY(x86_inw)
|
||||
mov 4(%esp), %edx
|
||||
xor %eax, %eax
|
||||
inw %dx, %ax
|
||||
ret
|
||||
ASM_END(x86_inw)
|
||||
|
||||
/* u32 x86_inl(u16 port); */
|
||||
ASM_ENTRY(x86_inl)
|
||||
mov 4(%esp), %edx
|
||||
xor %eax, %eax
|
||||
inl %dx, %eax
|
||||
ret
|
||||
ASM_END(x86_inl)
|
||||
|
||||
/* void x86_outb(u16 port, u8 data); */
|
||||
ASM_ENTRY(x86_outb)
|
||||
mov 4(%esp), %edx
|
||||
mov 8(%esp), %eax
|
||||
outb %al, %dx
|
||||
ret
|
||||
ASM_END(x86_outb)
|
||||
|
||||
/* void x86_outw(u16 port, u16 data); */
|
||||
ASM_ENTRY(x86_outw)
|
||||
mov 4(%esp), %edx
|
||||
mov 8(%esp), %eax
|
||||
outw %ax, %dx
|
||||
ret
|
||||
ASM_END(x86_outw)
|
||||
|
||||
/* void x86_outl(u16 port, u32 data); */
|
||||
ASM_ENTRY(x86_outl)
|
||||
mov 4(%esp), %edx
|
||||
mov 8(%esp), %eax
|
||||
outl %eax, %dx
|
||||
ret
|
||||
ASM_END(x86_outl)
|
||||
|
||||
/*
|
||||
* This file is part of GayBSD.
|
||||
* Copyright (c) 2021 fef <owo@fef.moe>.
|
||||
*
|
||||
* GayBSD is nonviolent software: you may only use, redistribute, and/or
|
||||
* modify it under the terms of the Cooperative Nonviolent Public License
|
||||
* (CNPL) as found in the LICENSE file in the source code root directory
|
||||
* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
|
||||
* of the license, or (at your option) any later version.
|
||||
*
|
||||
* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
|
||||
* permitted by applicable law. See the CNPL for details.
|
||||
*/
|
||||
@ -0,0 +1,146 @@
|
||||
/* See the end of this file for copyright and license terms. */
|
||||
|
||||
#include <arch/trap.h>
|
||||
|
||||
#include <gay/kprintf.h>
|
||||
|
||||
/*
|
||||
* NOTE: The error code is cast to a pointer for the kprintf() calls, this is
|
||||
* just for looks because i haven't implemented the %x format sequence yet so
|
||||
* this is the only way to print hex numbers.
|
||||
*/
|
||||
|
||||
void x86_isr_divide_error(void)
|
||||
{
|
||||
kprintf("Divide Error\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_debug_exception(void)
|
||||
{
|
||||
kprintf("Debug Exception\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_nmi(void)
|
||||
{
|
||||
kprintf("Nonmaskable Interrupt\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_breakpoint(void)
|
||||
{
|
||||
kprintf("Breakpoint\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_overflow(void)
|
||||
{
|
||||
kprintf("Overflow\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_bound_range_exceeded(void)
|
||||
{
|
||||
kprintf("Bound Range Exceeded\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_invalid_opcode(void)
|
||||
{
|
||||
kprintf("Invalid Opcode\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_device_not_available(void)
|
||||
{
|
||||
kprintf("Device Not Available\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_double_fault(u32 error_code)
|
||||
{
|
||||
kprintf("Double Fault (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_invalid_tss(u32 error_code)
|
||||
{
|
||||
kprintf("Invalid TSS (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_segment_not_present(u32 error_code)
|
||||
{
|
||||
kprintf("Segment Not Present (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_stack_segment_fault(u32 error_code)
|
||||
{
|
||||
kprintf("Stack Segment Fault (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_general_protection(u32 error_code)
|
||||
{
|
||||
kprintf("General Protection Fault (external = %d, table = %d, index = %d)\n",
|
||||
error_code & 1, (error_code >> 1) & 3, (error_code >> 3));
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_page_fault(u32 error_code)
|
||||
{
|
||||
kprintf("Page Fault (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_x87_fpu_error(void)
|
||||
{
|
||||
kprintf("x87 FPU Error\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_alignment_check(u32 error_code)
|
||||
{
|
||||
kprintf("Alignment Check (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_machine_check(void)
|
||||
{
|
||||
kprintf("Machine Check\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_simd_floating_point_exception(void)
|
||||
{
|
||||
kprintf("SIMD Floating Point Exception\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_virtualization_exception(void)
|
||||
{
|
||||
kprintf("Virtualization Exception\n");
|
||||
while (1);
|
||||
}
|
||||
|
||||
void x86_isr_control_protection_exception(u32 error_code)
|
||||
{
|
||||
kprintf("Control Protection Exception (error = %p)\n", (void *)error_code);
|
||||
while (1);
|
||||
}
|
||||
|
||||
/*
|
||||
* This file is part of GayBSD.
|
||||
* Copyright (c) 2021 fef <owo@fef.moe>.
|
||||
*
|
||||
* GayBSD is nonviolent software: you may only use, redistribute, and/or
|
||||
* modify it under the terms of the Cooperative Nonviolent Public License
|
||||
* (CNPL) as found in the LICENSE file in the source code root directory
|
||||
* or at <https://git.pixie.town/thufie/npl-builder>; either version 7
|
||||
* of the license, or (at your option) any later version.
|
||||
*
|
||||
* GayBSD comes with ABSOLUTELY NO WARRANTY, to the extent
|
||||
* permitted by applicable law. See the CNPL for details.
|
||||
*/
|
||||
Loading…
Reference in New Issue