/* * 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