xref: /freebsd/sys/dev/hyperv/utilities/hv_utilreg.h (revision 43a5ec4eb41567cc92586503212743d89686d78f)
1 /*-
2  * Copyright (c) 2016 Microsoft Corp.
3  * All rights reserved.
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 _HV_UTILREG_H_
30 #define _HV_UTILREG_H_
31 
32 /*
33  * Some Hyper-V status codes.
34  */
35 #define HV_S_OK				0x00000000
36 #define HV_E_FAIL			0x80004005
37 #define HV_S_CONT			0x80070103
38 #define HV_ERROR_NOT_SUPPORTED		0x80070032
39 #define HV_ERROR_MACHINE_LOCKED		0x800704F7
40 #define HV_ERROR_DEVICE_NOT_CONNECTED	0x8007048F
41 #define HV_INVALIDARG			0x80070057
42 #define HV_GUID_NOTFOUND		0x80041002
43 
44 /*
45  * Common defines for Hyper-V ICs
46  */
47 #define HV_ICMSGTYPE_NEGOTIATE		0
48 #define HV_ICMSGTYPE_HEARTBEAT		1
49 #define HV_ICMSGTYPE_KVPEXCHANGE	2
50 #define HV_ICMSGTYPE_SHUTDOWN		3
51 #define HV_ICMSGTYPE_TIMESYNC		4
52 #define HV_ICMSGTYPE_VSS		5
53 
54 #define HV_ICMSGHDRFLAG_TRANSACTION	1
55 #define HV_ICMSGHDRFLAG_REQUEST		2
56 #define HV_ICMSGHDRFLAG_RESPONSE	4
57 
58 typedef struct hv_vmbus_pipe_hdr {
59 	uint32_t flags;
60 	uint32_t msgsize;
61 } __packed hv_vmbus_pipe_hdr;
62 
63 typedef struct hv_vmbus_ic_version {
64 	uint16_t major;
65 	uint16_t minor;
66 } __packed hv_vmbus_ic_version;
67 
68 typedef struct hv_vmbus_icmsg_hdr {
69 	hv_vmbus_ic_version	icverframe;
70 	uint16_t		icmsgtype;
71 	hv_vmbus_ic_version	icvermsg;
72 	uint16_t		icmsgsize;
73 	uint32_t		status;
74 	uint8_t			ictransaction_id;
75 	uint8_t			icflags;
76 	uint8_t			reserved[2];
77 } __packed hv_vmbus_icmsg_hdr;
78 
79 typedef struct hv_vmbus_icmsg_negotiate {
80 	uint16_t		icframe_vercnt;
81 	uint16_t		icmsg_vercnt;
82 	uint32_t		reserved;
83 	hv_vmbus_ic_version	icversion_data[1]; /* any size array */
84 } __packed hv_vmbus_icmsg_negotiate;
85 
86 #endif	/* !_HV_UTILREG_H_ */
87