xref: /titanic_51/usr/src/uts/i86xpv/vm/seg_mf.h (revision b453864f3587ccc3324d7a3b0438a1e542dcfde7)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_VM_SEG_MF_H
28 #define	_VM_SEG_MF_H
29 
30 
31 #include <sys/types.h>
32 #include <vm/seg.h>
33 #include <sys/hypervisor.h>
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 struct segmf_crargs {
40 	dev_t		dev;
41 	uchar_t		prot;
42 	uchar_t		maxprot;
43 };
44 
45 extern int segmf_create(struct seg *, void *);
46 
47 extern int segmf_add_mfns(struct seg *, caddr_t, mfn_t, pgcnt_t, domid_t);
48 
49 /* max grefs which can be passed into segmf_add_grefs */
50 #define	SEGMF_MAX_GREFS		0x10
51 
52 /* segmf_add_grefs flags */
53 #define	SEGMF_GREF_WR		0x1	/* Map gref writable */
54 
55 extern int segmf_add_grefs(struct seg *, caddr_t, uint_t, grant_ref_t *,
56     uint_t, domid_t);
57 extern int segmf_release_grefs(struct seg *, caddr_t, uint_t);
58 extern void segmf_add_gref_pte(struct seg *, caddr_t, uint64_t);
59 
60 #ifdef __cplusplus
61 }
62 #endif
63 
64 #endif /* _VM_SEG_MF_H */
65