xnu-2782.1.97.tar.gz

[apple/xnu.git] / osfmk / kern / hv_support.h

diff --git a/osfmk/kern/hv_support.h b/osfmk/kern/hv_support.h
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+/*
+ * Copyright (c) 2013 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#ifndef _KERN_HV_SUPPORT_H_
+#define _KERN_HV_SUPPORT_H_
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <mach/kern_return.h>
+
+typedef enum {
+       HV_DEBUG_STATE
+} hv_volatile_state_t;
+
+typedef enum {
+       HV_TASK_TRAP = 0,
+       HV_THREAD_TRAP = 1
+} hv_trap_type_t;
+
+typedef kern_return_t (*hv_trap_t) (void *thread_target, uint64_t arg);
+typedef void (*hv_callback_0_t)(void *target);
+typedef void (*hv_callback_1_t)(void *target, int argument);
+
+typedef struct  {
+       const hv_trap_t *traps;
+       unsigned trap_count;
+} hv_trap_table_t;
+
+typedef struct {
+       hv_callback_0_t dispatch;
+       hv_callback_0_t preempt;
+       hv_callback_0_t thread_destroy;
+       hv_callback_0_t task_destroy;
+       hv_callback_1_t volatile_state;
+       hv_callback_0_t memory_pressure;
+} hv_callbacks_t;
+
+extern hv_callbacks_t hv_callbacks;
+extern int hv_support_available;
+
+extern void hv_support_init(void);
+extern int hv_get_support(void);
+extern void hv_set_task_target(void *target);
+extern void hv_set_thread_target(void *target);
+extern void *hv_get_task_target(void);
+extern void *hv_get_thread_target(void);
+extern int hv_get_volatile_state(hv_volatile_state_t state);
+extern kern_return_t hv_set_mp_notify(void);
+extern void hv_release_mp_notify(void);
+extern kern_return_t hv_set_traps(hv_trap_type_t trap_type,
+       const hv_trap_t *traps, unsigned trap_count);
+extern void hv_release_traps(hv_trap_type_t trap_type);
+extern kern_return_t hv_set_callbacks(hv_callbacks_t callbacks);
+extern void hv_release_callbacks(void) ;
+extern kern_return_t hv_task_trap(uint64_t index, uint64_t arg);
+extern kern_return_t hv_thread_trap(uint64_t index, uint64_t arg);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* _KERN_HV_SUPPORT_H_ */