mirror of
https://github.com/drasko/codezero.git
synced 2026-01-12 10:53:16 +01:00
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
|
|
* Generic address space related information.
|
|
*
|
|
* Copyright (C) 2007-2010 Bahadir Balban
|
|
*/
|
|
#ifndef __SPACE_H__
|
|
#define __SPACE_H__
|
|
|
|
/*
|
|
* Generic mapping flags.
|
|
*/
|
|
#define MAP_FAULT 0
|
|
#define MAP_USR_RW 1
|
|
#define MAP_USR_RO 2
|
|
#define MAP_KERN_RW 3
|
|
#define MAP_USR_IO 4
|
|
#define MAP_KERN_IO 5
|
|
#define MAP_USR_RWX 6
|
|
#define MAP_KERN_RWX 7
|
|
#define MAP_USR_RX 8
|
|
#define MAP_KERN_RX 9
|
|
#define MAP_UNMAP 10 /* For unmap syscall */
|
|
#define MAP_INVALID_FLAGS (1 << 31)
|
|
|
|
/* Some default aliases */
|
|
#define MAP_USR_DEFAULT MAP_USR_RW
|
|
#define MAP_KERN_DEFAULT MAP_KERN_RW
|
|
#define MAP_IO_DEFAULT MAP_KERN_IO
|
|
|
|
#if defined (__KERNEL__)
|
|
|
|
#include <l4/lib/spinlock.h>
|
|
#include <l4/lib/list.h>
|
|
#include <l4/lib/mutex.h>
|
|
#include <l4/lib/idpool.h>
|
|
#include <l4/generic/capability.h>
|
|
#include INC_SUBARCH(mm.h)
|
|
|
|
/* A simple page table with a reference count */
|
|
struct address_space {
|
|
l4id_t spid;
|
|
struct link list;
|
|
struct spinlock lock;
|
|
pgd_table_t *pgd;
|
|
|
|
/* Capabilities shared by threads in same space */
|
|
struct cap_list cap_list;
|
|
int ktcb_refs;
|
|
};
|
|
|
|
struct address_space_list {
|
|
struct link list;
|
|
struct spinlock lock;
|
|
int count;
|
|
};
|
|
|
|
struct address_space *address_space_create(struct address_space *orig);
|
|
void address_space_delete(struct address_space *space, struct cap_list *clist);
|
|
void address_space_attach(struct ktcb *tcb, struct address_space *space);
|
|
struct address_space *address_space_find(l4id_t spid);
|
|
void address_space_add(struct address_space *space);
|
|
|
|
struct container;
|
|
void address_space_remove(struct address_space *space, struct container *cont);
|
|
void init_address_space_list(struct address_space_list *space_list);
|
|
int check_access(unsigned long vaddr, unsigned long size,
|
|
unsigned int flags, int page_in);
|
|
int check_access_task(unsigned long vaddr, unsigned long size,
|
|
unsigned int flags, int page_in, struct ktcb *task);
|
|
#endif
|
|
|
|
#endif /* __SPACE_H__ */
|