usr/src/uts/i86xpv/vm/seg_mf.h

   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 */