1 /*- SPDX-License-Identifier: BSD-2-Clause
2  *
3  * Copyright (c) 2022 Microsoft Corp.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _HYPERV_MACHDEP_H_
30 #define _HYPERV_MACHDEP_H_
31 
32 #include <sys/param.h>
33 
34 typedef uint32_t u32;
35 typedef uint64_t u64;
36 struct hv_get_vp_registers_output {
37 	union {
38 		struct {
39 			u32 a;
40 			u32 b;
41 			u32 c;
42 			u32 d;
43 		} as32 __packed;
44 		struct {
45 			u64 low;
46 			u64 high;
47 		} as64 __packed;
48 	};
49 };
50 
51 uint64_t hypercall_md(volatile void *hc_addr, u64 in_val,
52     u64 in_paddr, u64 out_paddr);
53 void hv_get_vpreg_128(u32, struct hv_get_vp_registers_output *);
54 void arm_hv_set_vreg(u32 msr, u64 val);
55 #define WRMSR(msr, val) arm_hv_set_vreg(msr, val)
56 u64 arm_hv_get_vreg(u32 msr);
57 #define RDMSR(msr) arm_hv_get_vreg(msr)
58 
59 #endif /* !_HYPERV_MACHDEP_H_ */
60