* Copyright (c) 1991 Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* The Mach Operating System project at Carnegie-Mellon University.
* %sccs.include.redist.c%
* @(#)vm_user.c 7.4 (Berkeley) %G%
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
* Authors: Avadis Tevanian, Jr., Michael Wayne Young
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
* Carnegie Mellon requests users of this software to return to
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
* User-exported virtual memory functions.
simple_lock_data_t vm_alloc_lock
; /* XXX */
* BSD style syscall interfaces to MACH calls
* All return MACH return values.
svm_allocate(p
, uap
, retval
)
uap
->map
= p
->p_map
; /* XXX */
if (copyin((caddr_t
)uap
->addr
, (caddr_t
)&addr
, sizeof (addr
)))
rv
= KERN_INVALID_ARGUMENT
;
rv
= vm_allocate(uap
->map
, &addr
, uap
->size
, uap
->anywhere
);
if (rv
== KERN_SUCCESS
) {
if (copyout((caddr_t
)&addr
, (caddr_t
)uap
->addr
, sizeof(addr
)))
rv
= KERN_INVALID_ARGUMENT
;
svm_deallocate(p
, uap
, retval
)
uap
->map
= p
->p_map
; /* XXX */
rv
= vm_deallocate(uap
->map
, uap
->addr
, uap
->size
);
svm_inherit(p
, uap
, retval
)
uap
->map
= p
->p_map
; /* XXX */
rv
= vm_inherit(uap
->map
, uap
->addr
, uap
->size
, uap
->inherit
);
svm_protect(p
, uap
, retval
)
uap
->map
= p
->p_map
; /* XXX */
rv
= vm_protect(uap
->map
, uap
->addr
, uap
->size
, uap
->setmax
, uap
->prot
);
* vm_allocate allocates "zero fill" memory in the specfied
vm_allocate(map
, addr
, size
, anywhere
)
register vm_offset_t
*addr
;
return(KERN_INVALID_ARGUMENT
);
*addr
= trunc_page(*addr
);
result
= vm_map_find(map
, NULL
, (vm_offset_t
) 0, addr
,
* vm_deallocate deallocates the specified range of addresses in the
vm_deallocate(map
, start
, size
)
return(KERN_INVALID_ARGUMENT
);
if (size
== (vm_offset_t
) 0)
return(vm_map_remove(map
, trunc_page(start
), round_page(start
+size
)));
* vm_inherit sets the inheritence of the specified range in the
vm_inherit(map
, start
, size
, new_inheritance
)
vm_inherit_t new_inheritance
;
return(KERN_INVALID_ARGUMENT
);
return(vm_map_inherit(map
, trunc_page(start
), round_page(start
+size
), new_inheritance
));
* vm_protect sets the protection of the specified range in the
vm_protect(map
, start
, size
, set_maximum
, new_protection
)
vm_prot_t new_protection
;
return(KERN_INVALID_ARGUMENT
);
return(vm_map_protect(map
, trunc_page(start
), round_page(start
+size
), new_protection
, set_maximum
));