1/*
2 * Copyright (c) 2013 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#ifndef _KERN_HV_SUPPORT_H_
30#define _KERN_HV_SUPPORT_H_
31
32#if defined(__cplusplus)
33extern "C" {
34#endif
35
36#include <stdint.h>
37#include <mach/kern_return.h>
38
39typedef enum {
40 HV_DEBUG_STATE
41} hv_volatile_state_t;
42
43typedef enum {
44 HV_TASK_TRAP = 0,
45 HV_THREAD_TRAP = 1
46} hv_trap_type_t;
47
48typedef kern_return_t (*hv_trap_t) (void *target, uint64_t arg);
49
50typedef struct {
51 const hv_trap_t *traps;
52 unsigned trap_count;
53} hv_trap_table_t;
54
55typedef struct {
56 void (*dispatch)(void *vcpu);
57 void (*preempt)(void *vcpu);
58 void (*suspend)(void);
59 void (*thread_destroy)(void *vcpu);
60 void (*task_destroy)(void *vm);
61 void (*volatile_state)(void *vcpu, int state);
62 void (*memory_pressure)(void);
63} hv_callbacks_t;
64
65extern hv_callbacks_t hv_callbacks;
66extern int hv_support_available;
67
68extern void hv_support_init(void);
69extern int hv_get_support(void);
70extern void hv_set_task_target(void *target);
71extern void hv_set_thread_target(void *target);
72extern void *hv_get_task_target(void);
73extern void *hv_get_thread_target(void);
74extern int hv_get_volatile_state(hv_volatile_state_t state);
75extern kern_return_t hv_set_traps(hv_trap_type_t trap_type,
76 const hv_trap_t *traps, unsigned trap_count);
77extern void hv_release_traps(hv_trap_type_t trap_type);
78extern kern_return_t hv_set_callbacks(hv_callbacks_t callbacks);
79extern void hv_release_callbacks(void);
80extern void hv_suspend(void);
81extern kern_return_t hv_task_trap(uint64_t index, uint64_t arg);
82extern kern_return_t hv_thread_trap(uint64_t index, uint64_t arg);
83
84#if defined(__cplusplus)
85}
86#endif
87
88#endif /* _KERN_HV_SUPPORT_H_ */
89