1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/types.h>
30 #include <vm/hat.h>
31 #include <vm/hat_sfmmu.h>
32 #include <sys/pte.h>
33 #include <sys/mmu.h>
34 #include <sys/kdi_impl.h>
35 #include <sys/errno.h>
36
37 extern int kdi_vatotte(uintptr_t, int, tte_t *);
38 extern int sfmmu_kern_mapped;
39
40 int
kdi_vtop(uintptr_t va,uint64_t * pap)41 kdi_vtop(uintptr_t va, uint64_t *pap)
42 {
43 tte_t tte;
44
45 if (!sfmmu_kern_mapped)
46 return (EAGAIN);
47
48 if (kdi_vatotte(va, KCONTEXT, &tte) < 0)
49 return (ENOENT);
50
51 *pap = (TTE_TO_PFN((caddr_t)va, &tte) << MMU_PAGESHIFT) |
52 (va & MMU_PAGEOFFSET);
53
54 return (0);
55 }
56