sortix--sortix/kernel/x86-family/gdt.h

/*
 * Copyright (c) 2011, 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * x86-family/gdt.h
 * GDT and TSS.
 */

#ifndef SORTIX_X86_FAMILY_GDT_H
#define SORTIX_X86_FAMILY_GDT_H

#include <stdint.h>

namespace Sortix {
namespace GDT {

void Init();
uintptr_t GetKernelStack();
void SetKernelStack(uintptr_t stack_pointer);
#if defined(__i386__)
uint32_t GetFSBase();
uint32_t GetGSBase();
void SetFSBase(uint32_t fsbase);
void SetGSBase(uint32_t gsbase);
#endif

} // namespace GDT
} // namespace Sortix

#endif