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

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1.2 KiB
C++

/*
* 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