diff options
Diffstat (limited to 'sys/include/arch/amd64/idt.h')
| -rw-r--r-- | sys/include/arch/amd64/idt.h | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/sys/include/arch/amd64/idt.h b/sys/include/arch/amd64/idt.h deleted file mode 100644 index 36ce44e..0000000 --- a/sys/include/arch/amd64/idt.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. 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. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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. - */ - -#ifndef _AMD64_IDT_H_ -#define _AMD64_IDT_H_ - -#include <sys/types.h> -#include <sys/cdefs.h> - -#define LIDT(idtr) __ASMV("lidt %0" \ - :: "m" (idtr)) - -#define IDT_TRAP_GATE_FLAGS 0x8F -#define IDT_INT_GATE_FLAGS 0x8E -#define IDT_INT_GATE_USER 0xEE - -/* - * AMD64 Interrupt Gate Descriptor. - */ -struct idt_entry { - uint16_t off_lo; /* Low 16 bits of ISR offset */ - uint16_t segsel; /* Segment selector, hardcode to kernel CS */ - uint8_t ist : 2; /* Interrupt stack table */ - uint8_t zero : 1; /* Unused: keep zero */ - uint8_t zero1 : 4; /* Unused: keep zero */ - uint8_t type : 4; /* Gate type */ - uint8_t zero2 : 1; /* Unused: keep zero */ - uint8_t dpl : 2; /* Descriptor privilege level */ - uint8_t p : 1; /* Present (keep 1 to mark as valid) */ - uint16_t off_mid; /* Middle 16 bits of ISR offset */ - uint32_t off_hi; /* High 32-bits of ISR offset */ - uint32_t reserved; /* Reserved: keep zero */ -}; - -struct __packed idtr { - uint16_t limit; - uintptr_t offset; -}; - - -void idt_set_desc(uint8_t vec, uint8_t type, uintptr_t isr, uint8_t ist); -void idt_load(void); - -#endif /* !_AMD64_IDT_H_ */ |