os-k/kaleid/kernel/cpu/idt.c

39 lines
2.2 KiB
C

//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Desc: Interrupt related functions //
// //
// //
// Copyright © 2018-2019 The OS/K Team //
// //
// This file is part of OS/K. //
// //
// OS/K 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 //
// any later version. //
// //
// OS/K 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 OS/K. If not, see <https://www.gnu.org/licenses/>. //
//----------------------------------------------------------------------------//
#include <kernel/base.h>
//
// Registers the new idt in the idtr register.
//
static inline void lidt(void* idtAddr, ushort size)
{
// The IDTR register structure that will be sent
struct {
ushort length;
void* base;
} __attribute__((packed)) IDTR = { size, idtAddr };
asm volatile( "lidt %0" : : "m"(IDTR) );
}