xref: /illumos-gate/usr/src/uts/i86xpv/vm/seg_mf.h (revision 069e6b7e31ba5dcbc5441b98af272714d9a5455c)
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  * Copyright 2018 Joyent, Inc.
26  */
27 
28 #ifndef	_VM_SEG_MF_H
29 #define	_VM_SEG_MF_H
30 
31 
32 #include <sys/types.h>
33 #include <vm/seg.h>
34 #include <sys/hypervisor.h>
35 
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39 
40 struct segmf_crargs {
41 	dev_t		dev;
42 	uchar_t		prot;
43 	uchar_t		maxprot;
44 };
45 
46 extern int segmf_create(struct seg **, void *);
47 
48 extern int segmf_add_mfns(struct seg *, caddr_t, mfn_t, pgcnt_t, domid_t);
49 
50 /* max grefs which can be passed into segmf_add_grefs */
51 #define	SEGMF_MAX_GREFS		0x10
52 
53 /* segmf_add_grefs flags */
54 #define	SEGMF_GREF_WR		0x1	/* Map gref writable */
55 
56 extern int segmf_add_grefs(struct seg *, caddr_t, uint_t, grant_ref_t *,
57     uint_t, domid_t);
58 extern int segmf_release_grefs(struct seg *, caddr_t, uint_t);
59 extern void segmf_add_gref_pte(struct seg *, caddr_t, uint64_t);
60 
61 #ifdef __cplusplus
62 }
63 #endif
64 
65 #endif /* _VM_SEG_MF_H */
66