osfmk/kern/hv_io_notifier.h

   1 /*
   2  * Copyright (c) 2020 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #pragma once
  30
  31 #include <mach/port.h>
  32 #include <stdint.h>
  33
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 enum {
  39         kHV_ION_NONE             = (0u << 0),
  40         kHV_ION_ANY_VALUE        = (1u << 1),
  41         kHV_ION_ANY_SIZE         = (1u << 2),
  42         kHV_ION_EXIT_FULL        = (1u << 3),
  43 };
  44
  45 #ifdef KERNEL_PRIVATE
  46
  47 typedef struct {
  48         mach_msg_header_t header;
  49         uint64_t addr;
  50         uint64_t size;
  51         uint64_t value;
  52 } hv_ion_message_t;
  53
  54 typedef struct {
  55         uint64_t addr;
  56         uint64_t size;
  57         uint64_t value;
  58         uint32_t port_name;
  59         uint32_t flags;
  60 } hv_ion_t;
  61
  62 typedef struct hv_ion_grp hv_ion_grp_t;
  63
  64 extern kern_return_t hv_io_notifier_grp_add(hv_ion_grp_t *grp, const hv_ion_t *);
  65 extern kern_return_t hv_io_notifier_grp_remove(hv_ion_grp_t *, const hv_ion_t *);
  66 extern kern_return_t hv_io_notifier_grp_fire(hv_ion_grp_t *, uint64_t, size_t, uint64_t);
  67 extern kern_return_t hv_io_notifier_grp_alloc(hv_ion_grp_t **);
  68 extern void hv_io_notifier_grp_free(hv_ion_grp_t **);
  69
  70 #endif /* KERNEL_PRIVATE */
  71
  72 #ifdef __cplusplus
  73 }
  74 #endif