1/* 2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH 3 * Licensed under the GPL 4 * 5 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com> 6 */ 7 8#ifndef __ASM_LDT_H 9#define __ASM_LDT_H 10 11#include <linux/mutex.h> 12#include <sysdep/host_ldt.h> 13 14extern void ldt_host_info(void); 15 16#define LDT_PAGES_MAX \ 17 ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE) 18#define LDT_ENTRIES_PER_PAGE \ 19 (PAGE_SIZE/LDT_ENTRY_SIZE) 20#define LDT_DIRECT_ENTRIES \ 21 ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE) 22 23struct ldt_entry { 24 __u32 a; 25 __u32 b; 26}; 27 28typedef struct uml_ldt { 29 int entry_count; 30 struct mutex lock; 31 union { 32 struct ldt_entry * pages[LDT_PAGES_MAX]; 33 struct ldt_entry entries[LDT_DIRECT_ENTRIES]; 34 } u; 35} uml_ldt_t; 36 37#endif 38