forked from Minki/linux
42 lines
901 B
C
42 lines
901 B
C
|
/*
|
||
|
|
* Copyright (C) 2004 Fujitsu Siemens Computers GmbH
|
||
|
|
* Licensed under the GPL
|
||
|
|
*
|
||
|
|
* Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASM_LDT_H
|
||
|
|
#define __ASM_LDT_H
|
||
|
|
|
||
|
|
#include "asm/semaphore.h"
|
||
|
|
#include "asm/host_ldt.h"
|
||
|
|
|
||
|
|
struct mmu_context_skas;
|
||
|
|
extern void ldt_host_info(void);
|
||
|
|
extern long init_new_ldt(struct mmu_context_skas * to_mm,
|
||
|
|
struct mmu_context_skas * from_mm);
|
||
|
|
extern void free_ldt(struct mmu_context_skas * mm);
|
||
|
|
|
||
|
|
#define LDT_PAGES_MAX \
|
||
|
|
((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
|
||
|
|
#define LDT_ENTRIES_PER_PAGE \
|
||
|
|
(PAGE_SIZE/LDT_ENTRY_SIZE)
|
||
|
|
#define LDT_DIRECT_ENTRIES \
|
||
|
|
((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
|
||
|
|
|
||
|
|
struct ldt_entry {
|
||
|
|
__u32 a;
|
||
|
|
__u32 b;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct uml_ldt {
|
||
|
|
int entry_count;
|
||
|
|
struct semaphore semaphore;
|
||
|
|
union {
|
||
|
|
struct ldt_entry * pages[LDT_PAGES_MAX];
|
||
|
|
struct ldt_entry entries[LDT_DIRECT_ENTRIES];
|
||
|
|
} u;
|
||
|
|
} uml_ldt_t;
|
||
|
|
|
||
|
|
#endif
|