xref: /netbsd/sys/dev/hyperv/vmbusicreg.h (revision ab6b88a0)
1 /*	$NetBSD: vmbusicreg.h,v 1.2 2019/03/01 10:02:33 nonaka Exp $	*/
2 /*	$OpenBSD: hypervicreg.h,v 1.6 2017/11/07 16:49:42 mikeb Exp $	*/
3 
4 /*-
5  * Copyright (c) 2016 Microsoft Corp.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice unmodified, this list of conditions, and the following
13  *    disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD: head/sys/dev/hyperv/utilities/vmbus_icreg.h 305281 2016-09-02 06:23:28Z sephe $
30  */
31 
32 #ifndef _VMBUSICREG_H_
33 #define _VMBUSICREG_H_
34 
35 #define VMBUS_ICMSG_TYPE_NEGOTIATE	0
36 #define VMBUS_ICMSG_TYPE_HEARTBEAT	1
37 #define VMBUS_ICMSG_TYPE_KVP		2
38 #define VMBUS_ICMSG_TYPE_SHUTDOWN	3
39 #define VMBUS_ICMSG_TYPE_TIMESYNC	4
40 #define VMBUS_ICMSG_TYPE_VSS		5
41 
42 #define VMBUS_ICMSG_STATUS_OK		0x00000000
43 #define VMBUS_ICMSG_STATUS_FAIL		0x80004005
44 
45 #define VMBUS_IC_VERSION(major, minor)	((major) | (((uint32_t)(minor)) << 16))
46 #define VMBUS_ICVER_MAJOR(ver)		((ver) & 0xffff)
47 #define VMBUS_ICVER_MINOR(ver)		(((ver) & 0xffff0000) >> 16)
48 #define VMBUS_ICVER_SWAP(ver)		\
49             ((VMBUS_ICVER_MAJOR((ver)) << 16) | VMBUS_ICVER_MINOR((ver)))
50 #define VMBUS_ICVER_LE(v1, v2)		\
51             (VMBUS_ICVER_SWAP((v1)) <= VMBUS_ICVER_SWAP((v2)))
52 #define VMBUS_ICVER_GT(v1, v2)		\
53             (VMBUS_ICVER_SWAP((v1)) > VMBUS_ICVER_SWAP((v2)))
54 
55 struct vmbus_pipe_hdr {
56 	uint32_t		ph_flags;
57 	uint32_t		ph_msgsz;
58 } __packed;
59 
60 struct vmbus_icmsg_hdr {
61 	struct vmbus_pipe_hdr	ic_pipe;
62 	uint32_t		ic_fwver;	/* framework version */
63 	uint16_t		ic_type;
64 	uint32_t		ic_msgver;	/* message version */
65 	uint16_t		ic_dsize;	/* data size */
66 	uint32_t		ic_status;	/* VMBUS_ICMSG_STATUS_ */
67 	uint8_t			ic_tid;
68 	uint8_t			ic_flags;	/* VMBUS_ICMSG_FLAG_ */
69 	uint8_t			ic_rsvd[2];
70 } __packed;
71 
72 #define VMBUS_ICMSG_FLAG_TRANSACTION	1
73 #define VMBUS_ICMSG_FLAG_REQUEST	2
74 #define VMBUS_ICMSG_FLAG_RESPONSE	4
75 
76 /* VMBUS_ICMSG_TYPE_NEGOTIATE */
77 struct vmbus_icmsg_negotiate {
78 	struct vmbus_icmsg_hdr	ic_hdr;
79 	uint16_t		ic_fwver_cnt;
80 	uint16_t		ic_msgver_cnt;
81 	uint32_t		ic_rsvd;
82 	/*
83 	 * This version array contains two set of supported
84 	 * versions:
85 	 * - The first set consists of #ic_fwver_cnt supported framework
86 	 *   versions.
87 	 * - The second set consists of #ic_msgver_cnt supported message
88 	 *   versions.
89 	 */
90 	uint32_t		ic_ver[0];
91 } __packed;
92 
93 /* VMBUS_ICMSG_TYPE_HEARTBEAT */
94 struct vmbus_icmsg_heartbeat {
95 	struct vmbus_icmsg_hdr	ic_hdr;
96 	uint64_t		ic_seq;
97 	uint32_t		ic_rsvd[8];
98 } __packed;
99 
100 #define VMBUS_ICMSG_HEARTBEAT_SIZE_MIN	\
101 	    offsetof(struct vmbus_icmsg_heartbeat, ic_rsvd[0])
102 
103 /* VMBUS_ICMSG_TYPE_SHUTDOWN */
104 struct vmbus_icmsg_shutdown {
105 	struct vmbus_icmsg_hdr	ic_hdr;
106 	uint32_t		ic_code;
107 	uint32_t		ic_timeo;
108 	uint32_t 		ic_haltflags;
109 	uint8_t			ic_msg[2048];
110 } __packed;
111 
112 #define VMBUS_ICMSG_SHUTDOWN_SIZE_MIN	\
113 	    offsetof(struct vmbus_icmsg_shutdown, ic_msg[0])
114 
115 /* VMBUS_ICMSG_TYPE_TIMESYNC */
116 struct vmbus_icmsg_timesync {
117 	struct vmbus_icmsg_hdr	ic_hdr;
118 	uint64_t		ic_hvtime;
119 	uint64_t		ic_vmtime;
120 	uint64_t		ic_rtt;
121 	uint8_t			ic_tsflags;	/* VMBUS_ICMSG_TS_FLAG_ */
122 } __packed;
123 
124 /* VMBUS_ICMSG_TYPE_TIMESYNC, MSGVER4 */
125 struct vmbus_icmsg_timesync4 {
126 	struct vmbus_icmsg_hdr	ic_hdr;
127 	uint64_t		ic_hvtime;
128 	uint64_t		ic_sent_tc;
129 	uint8_t			ic_tsflags;	/* VMBUS_ICMSG_TS_FLAG_ */
130 	uint8_t			ic_rsvd[5];
131 } __packed;
132 
133 #define VMBUS_ICMSG_TS_FLAG_SYNC	0x01
134 #define VMBUS_ICMSG_TS_FLAG_SAMPLE	0x02
135 
136 #define VMBUS_ICMSG_TS_BASE		116444736000000000ULL
137 
138 /* Registry value types */
139 #define VMBUS_KVP_REG_SZ		1
140 #define VMBUS_KVP_REG_U32		4
141 #define VMBUS_KVP_REG_U64		8
142 
143 /* Hyper-V status codes */
144 #define VMBUS_KVP_S_OK			0x00000000
145 #define VMBUS_KVP_E_FAIL		0x80004005
146 #define VMBUS_KVP_S_CONT		0x80070103
147 
148 #define VMBUS_KVP_MAX_VAL_SIZE		2048
149 #define VMBUS_KVP_MAX_KEY_SIZE		512
150 
151 enum vmbus_kvp_op {
152 	VMBUS_KVP_OP_GET = 0,
153 	VMBUS_KVP_OP_SET,
154 	VMBUS_KVP_OP_DELETE,
155 	VMBUS_KVP_OP_ENUMERATE,
156 	VMBUS_KVP_OP_GET_IP_INFO,
157 	VMBUS_KVP_OP_SET_IP_INFO,
158 	VMBUS_KVP_OP_COUNT
159 };
160 
161 enum vmbus_kvp_pool {
162 	VMBUS_KVP_POOL_EXTERNAL = 0,
163 	VMBUS_KVP_POOL_GUEST,
164 	VMBUS_KVP_POOL_AUTO,
165 	VMBUS_KVP_POOL_AUTO_EXTERNAL,
166 	VMBUS_KVP_POOL_COUNT
167 };
168 
169 union vmbus_kvp_hdr {
170 	struct {
171 		uint8_t		kvu_op;
172 		uint8_t		kvu_pool;
173 		uint16_t	kvu_pad;
174 	} req;
175 	struct {
176 		uint32_t	kvu_err;
177 	} rsp;
178 #define kvh_op			req.kvu_op
179 #define kvh_pool		req.kvu_pool
180 #define kvh_err			rsp.kvu_err
181 } __packed;
182 
183 struct vmbus_kvp_msg_val {
184 	uint32_t		kvm_valtype;
185 	uint32_t		kvm_keylen;
186 	uint32_t		kvm_vallen;
187 	uint8_t			kvm_key[VMBUS_KVP_MAX_KEY_SIZE];
188 	uint8_t			kvm_val[VMBUS_KVP_MAX_VAL_SIZE];
189 } __packed;
190 
191 struct vmbus_kvp_msg_enum {
192 	uint32_t		kvm_index;
193 	uint32_t		kvm_valtype;
194 	uint32_t		kvm_keylen;
195 	uint32_t		kvm_vallen;
196 	uint8_t			kvm_key[VMBUS_KVP_MAX_KEY_SIZE];
197 	uint8_t			kvm_val[VMBUS_KVP_MAX_VAL_SIZE];
198 } __packed;
199 
200 struct vmbus_kvp_msg_del {
201 	uint32_t		kvm_keylen;
202 	uint8_t			kvm_key[VMBUS_KVP_MAX_KEY_SIZE];
203 } __packed;
204 
205 #define ADDR_FAMILY_NONE	0x00
206 #define ADDR_FAMILY_IPV4	0x01
207 #define ADDR_FAMILY_IPV6	0x02
208 
209 #define MAX_MAC_ADDR_SIZE	256
210 #define MAX_IP_ADDR_SIZE	2048
211 #define MAX_GATEWAY_SIZE	1024
212 
213 struct vmbus_kvp_msg_addr {
214 	uint8_t			kvm_mac[MAX_MAC_ADDR_SIZE];
215 	uint8_t			kvm_family;
216 	uint8_t			kvm_dhcp;
217 	uint8_t			kvm_addr[MAX_IP_ADDR_SIZE];
218 	uint8_t			kvm_netmask[MAX_IP_ADDR_SIZE];
219 	uint8_t			kvm_gateway[MAX_GATEWAY_SIZE];
220 	uint8_t			kvm_dns[MAX_IP_ADDR_SIZE];
221 } __packed;
222 
223 union vmbus_kvp_msg {
224 	struct vmbus_kvp_msg_val	kvm_val;
225 	struct vmbus_kvp_msg_enum	kvm_enum;
226 	struct vmbus_kvp_msg_del	kvm_del;
227 };
228 
229 struct vmbus_icmsg_kvp {
230 	struct vmbus_icmsg_hdr	ic_hdr;
231 	union vmbus_kvp_hdr	ic_kvh;
232 	union vmbus_kvp_msg	ic_kvm;
233 } __packed;
234 
235 struct vmbus_icmsg_kvp_addr {
236 	struct vmbus_icmsg_hdr	ic_hdr;
237 	struct {
238 		struct {
239 			uint8_t	kvu_op;
240 			uint8_t	kvu_pool;
241 		} req;
242 	}			ic_kvh;
243 	struct vmbus_kvp_msg_addr ic_kvm;
244 } __packed;
245 
246 #endif	/* _VMBUSICREG_H_ */
247