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
27#ifndef _HYPERV_MACHDEP_H_
28#define _HYPERV_MACHDEP_H_
29
30#include <sys/param.h>
31
32typedef uint32_t u32;
33typedef uint64_t u64;
34struct hv_get_vp_registers_output {
35	union {
36		struct {
37			u32 a;
38			u32 b;
39			u32 c;
40			u32 d;
41		} as32 __packed;
42		struct {
43			u64 low;
44			u64 high;
45		} as64 __packed;
46	};
47};
48
49uint64_t hypercall_md(volatile void *hc_addr, u64 in_val,
50    u64 in_paddr, u64 out_paddr);
51void hv_get_vpreg_128(u32, struct hv_get_vp_registers_output *);
52void arm_hv_set_vreg(u32 msr, u64 val);
53#define WRMSR(msr, val) arm_hv_set_vreg(msr, val)
54u64 arm_hv_get_vreg(u32 msr);
55#define RDMSR(msr) arm_hv_get_vreg(msr)
56
57#endif /* !_HYPERV_MACHDEP_H_ */
58