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Diffstat (limited to 'kernel/include/boot/interrupts.h')
| -rw-r--r-- | kernel/include/boot/interrupts.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/kernel/include/boot/interrupts.h b/kernel/include/boot/interrupts.h new file mode 100644 index 0000000..42a0ba9 --- /dev/null +++ b/kernel/include/boot/interrupts.h @@ -0,0 +1,56 @@ +/* + * bubbl + * Copyright (C) 2024-2025 Raghuram Subramani <raghus2247@gmail.com> + * + * 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/>. + */ + +#ifndef __boot_interrupts_h +#define __boot_interrupts_h + +#include <boot/gdt.h> +#include <common.h> +#include <stdint.h> + +#define IDT_ENTRY(isr, attributes) \ + { \ + (isr & 0xffff), /* isr_low */ \ + GDT_KERNEL_CODE_OFFSET, /* segment_selector */ \ + 0, /* reserved */ \ + attributes, /* attributes */ \ + (isr >> 16) /* isr_high */ \ + } + +namespace Interrupts +{ + +typedef struct { + uint16_t isr_low; + uint16_t segment_selector; + uint8_t reserved; + uint8_t attributes; + uint16_t isr_high; +} PACKED entry_t; + +typedef struct { + uint16_t limit; /* sizeof(IDT) - 1 */ + entry_t *ptr; /* Address of IDT */ +} PACKED descriptor_t; + +void load_idt(void); +extern "C" NORETURN void exception_handler(void); + +} + +#endif |