tss.h

一个操作系统的源代码

/** tss.h
 **
 ** Original Author: Kasper Verdich Lund
 ** Date: 11.13.99
 **
 ** Description:
 ** TSS routines
 ** 
 ** 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
 ** 2 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 or 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, write to the
 ** Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 ** Boston, MA 02111-1307 USA
 **
 *********************************************************Apostle OS**/

#ifndef __TASK_H_
#define __TASK_H_

#include <types.h>

typedef struct TSS
{
  dword  back_link;
  dword  esp0;
  word   ss0, _ss0;
  dword  esp1;
  word   ss1, _ss1;
  dword  esp2;
  word   ss2, _ss2;
  dword  cr3;
  dword  eip;
  dword  eflags;
  dword  eax, ecx, edx, ebx;
  dword  esp, ebp;
  dword  esi, edi;
  word   es, _es;
  word   cs, _cs;
  word   ss, _ss;
  word   ds, _ds;
  word   fs, _fs;
  word   gs, _gs;
  word   ldt, _ldt;
  word   trace, bitmap;
} TSS;

extern TSS *systemTSS;
extern TSS *doublefaultTSS;
extern TSS *nmiTSS;

void setKernelStack(TSS *tss, dword sp);
void setupTSS(void);

#endif /* __TASK_H_ */