[deliverable/linux.git] / include / uapi / linux / hyperv.h

/*
 *
 * Copyright (c) 2011, Microsoft Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307 USA.
 *
 * Authors:
 *   Haiyang Zhang <haiyangz@microsoft.com>
 *   Hank Janssen  <hjanssen@microsoft.com>
 *   K. Y. Srinivasan <kys@microsoft.com>
 *
 */

#ifndef _UAPI_HYPERV_H
#define _UAPI_HYPERV_H

#include <linux/uuid.h>

/*
 * Framework version for util services.
 */
#define UTIL_FW_MINOR  0

#define UTIL_WS2K8_FW_MAJOR  1
#define UTIL_WS2K8_FW_VERSION     (UTIL_WS2K8_FW_MAJOR << 16 | UTIL_FW_MINOR)

#define UTIL_FW_MAJOR  3
#define UTIL_FW_VERSION     (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)


/*
 * Implementation of host controlled snapshot of the guest.
 */

#define VSS_OP_REGISTER 128

enum hv_vss_op {
	VSS_OP_CREATE = 0,
	VSS_OP_DELETE,
	VSS_OP_HOT_BACKUP,
	VSS_OP_GET_DM_INFO,
	VSS_OP_BU_COMPLETE,
	/*
	 * Following operations are only supported with IC version >= 5.0
	 */
	VSS_OP_FREEZE, /* Freeze the file systems in the VM */
	VSS_OP_THAW, /* Unfreeze the file systems */
	VSS_OP_AUTO_RECOVER,
	VSS_OP_COUNT /* Number of operations, must be last */
};


/*
 * Header for all VSS messages.
 */
struct hv_vss_hdr {
	__u8 operation;
	__u8 reserved[7];
} __attribute__((packed));


/*
 * Flag values for the hv_vss_check_feature. Linux supports only
 * one value.
 */
#define VSS_HBU_NO_AUTO_RECOVERY	0x00000005

struct hv_vss_check_feature {
	__u32 flags;
} __attribute__((packed));

struct hv_vss_check_dm_info {
	__u32 flags;
} __attribute__((packed));

struct hv_vss_msg {
	union {
		struct hv_vss_hdr vss_hdr;
		int error;
	};
	union {
		struct hv_vss_check_feature vss_cf;
		struct hv_vss_check_dm_info dm_info;
	};
} __attribute__((packed));

/*
 * Implementation of a host to guest copy facility.
 */

#define FCOPY_VERSION_0 0
#define FCOPY_CURRENT_VERSION FCOPY_VERSION_0
#define W_MAX_PATH 260

enum hv_fcopy_op {
	START_FILE_COPY = 0,
	WRITE_TO_FILE,
	COMPLETE_FCOPY,
	CANCEL_FCOPY,
};

struct hv_fcopy_hdr {
	__u32 operation;
	uuid_le service_id0; /* currently unused */
	uuid_le service_id1; /* currently unused */
} __attribute__((packed));

#define OVER_WRITE	0x1
#define CREATE_PATH	0x2

struct hv_start_fcopy {
	struct hv_fcopy_hdr hdr;
	__u16 file_name[W_MAX_PATH];
	__u16 path_name[W_MAX_PATH];
	__u32 copy_flags;
	__u64 file_size;
} __attribute__((packed));

/*
 * The file is chunked into fragments.
 */
#define DATA_FRAGMENT	(6 * 1024)

struct hv_do_fcopy {
	struct hv_fcopy_hdr hdr;
	__u64	offset;
	__u32	size;
	__u8	data[DATA_FRAGMENT];
};

/*
 * An implementation of HyperV key value pair (KVP) functionality for Linux.
 *
 *
 * Copyright (C) 2010, Novell, Inc.
 * Author : K. Y. Srinivasan <ksrinivasan@novell.com>
 *
 */

/*
 * Maximum value size - used for both key names and value data, and includes
 * any applicable NULL terminators.
 *
 * Note:  This limit is somewhat arbitrary, but falls easily within what is
 * supported for all native guests (back to Win 2000) and what is reasonable
 * for the IC KVP exchange functionality.  Note that Windows Me/98/95 are
 * limited to 255 character key names.
 *
 * MSDN recommends not storing data values larger than 2048 bytes in the
 * registry.
 *
 * Note:  This value is used in defining the KVP exchange message - this value
 * cannot be modified without affecting the message size and compatibility.
 */

/*
 * bytes, including any null terminators
 */
#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE          (2048)


/*
 * Maximum key size - the registry limit for the length of an entry name
 * is 256 characters, including the null terminator
 */

#define HV_KVP_EXCHANGE_MAX_KEY_SIZE            (512)

/*
 * In Linux, we implement the KVP functionality in two components:
 * 1) The kernel component which is packaged as part of the hv_utils driver
 * is responsible for communicating with the host and responsible for
 * implementing the host/guest protocol. 2) A user level daemon that is
 * responsible for data gathering.
 *
 * Host/Guest Protocol: The host iterates over an index and expects the guest
 * to assign a key name to the index and also return the value corresponding to
 * the key. The host will have atmost one KVP transaction outstanding at any
 * given point in time. The host side iteration stops when the guest returns
 * an error. Microsoft has specified the following mapping of key names to
 * host specified index:
 *
 *	Index		Key Name
 *	0		FullyQualifiedDomainName
 *	1		IntegrationServicesVersion
 *	2		NetworkAddressIPv4
 *	3		NetworkAddressIPv6
 *	4		OSBuildNumber
 *	5		OSName
 *	6		OSMajorVersion
 *	7		OSMinorVersion
 *	8		OSVersion
 *	9		ProcessorArchitecture
 *
 * The Windows host expects the Key Name and Key Value to be encoded in utf16.
 *
 * Guest Kernel/KVP Daemon Protocol: As noted earlier, we implement all of the
 * data gathering functionality in a user mode daemon. The user level daemon
 * is also responsible for binding the key name to the index as well. The
 * kernel and user-level daemon communicate using a connector channel.
 *
 * The user mode component first registers with the
 * the kernel component. Subsequently, the kernel component requests, data
 * for the specified keys. In response to this message the user mode component
 * fills in the value corresponding to the specified key. We overload the
 * sequence field in the cn_msg header to define our KVP message types.
 *
 *
 * The kernel component simply acts as a conduit for communication between the
 * Windows host and the user-level daemon. The kernel component passes up the
 * index received from the Host to the user-level daemon. If the index is
 * valid (supported), the corresponding key as well as its
 * value (both are strings) is returned. If the index is invalid
 * (not supported), a NULL key string is returned.
 */


/*
 * Registry value types.
 */

#define REG_SZ 1
#define REG_U32 4
#define REG_U64 8

/*
 * As we look at expanding the KVP functionality to include
 * IP injection functionality, we need to maintain binary
 * compatibility with older daemons.
 *
 * The KVP opcodes are defined by the host and it was unfortunate
 * that I chose to treat the registration operation as part of the
 * KVP operations defined by the host.
 * Here is the level of compatibility
 * (between the user level daemon and the kernel KVP driver) that we
 * will implement:
 *
 * An older daemon will always be supported on a newer driver.
 * A given user level daemon will require a minimal version of the
 * kernel driver.
 * If we cannot handle the version differences, we will fail gracefully
 * (this can happen when we have a user level daemon that is more
 * advanced than the KVP driver.
 *
 * We will use values used in this handshake for determining if we have
 * workable user level daemon and the kernel driver. We begin by taking the
 * registration opcode out of the KVP opcode namespace. We will however,
 * maintain compatibility with the existing user-level daemon code.
 */

/*
 * Daemon code not supporting IP injection (legacy daemon).
 */

#define KVP_OP_REGISTER	4

/*
 * Daemon code supporting IP injection.
 * The KVP opcode field is used to communicate the
 * registration information; so define a namespace that
 * will be distinct from the host defined KVP opcode.
 */

#define KVP_OP_REGISTER1 100

enum hv_kvp_exchg_op {
	KVP_OP_GET = 0,
	KVP_OP_SET,
	KVP_OP_DELETE,
	KVP_OP_ENUMERATE,
	KVP_OP_GET_IP_INFO,
	KVP_OP_SET_IP_INFO,
	KVP_OP_COUNT /* Number of operations, must be last. */
};

enum hv_kvp_exchg_pool {
	KVP_POOL_EXTERNAL = 0,
	KVP_POOL_GUEST,
	KVP_POOL_AUTO,
	KVP_POOL_AUTO_EXTERNAL,
	KVP_POOL_AUTO_INTERNAL,
	KVP_POOL_COUNT /* Number of pools, must be last. */
};

/*
 * Some Hyper-V status codes.
 */

#define HV_S_OK				0x00000000
#define HV_E_FAIL			0x80004005
#define HV_S_CONT			0x80070103
#define HV_ERROR_NOT_SUPPORTED		0x80070032
#define HV_ERROR_MACHINE_LOCKED		0x800704F7
#define HV_ERROR_DEVICE_NOT_CONNECTED	0x8007048F
#define HV_INVALIDARG			0x80070057
#define HV_GUID_NOTFOUND		0x80041002
#define HV_ERROR_ALREADY_EXISTS		0x80070050

#define ADDR_FAMILY_NONE	0x00
#define ADDR_FAMILY_IPV4	0x01
#define ADDR_FAMILY_IPV6	0x02

#define MAX_ADAPTER_ID_SIZE	128
#define MAX_IP_ADDR_SIZE	1024
#define MAX_GATEWAY_SIZE	512


struct hv_kvp_ipaddr_value {
	__u16	adapter_id[MAX_ADAPTER_ID_SIZE];
	__u8	addr_family;
	__u8	dhcp_enabled;
	__u16	ip_addr[MAX_IP_ADDR_SIZE];
	__u16	sub_net[MAX_IP_ADDR_SIZE];
	__u16	gate_way[MAX_GATEWAY_SIZE];
	__u16	dns_addr[MAX_IP_ADDR_SIZE];
} __attribute__((packed));


struct hv_kvp_hdr {
	__u8 operation;
	__u8 pool;
	__u16 pad;
} __attribute__((packed));

struct hv_kvp_exchg_msg_value {
	__u32 value_type;
	__u32 key_size;
	__u32 value_size;
	__u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
	union {
		__u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
		__u32 value_u32;
		__u64 value_u64;
	};
} __attribute__((packed));

struct hv_kvp_msg_enumerate {
	__u32 index;
	struct hv_kvp_exchg_msg_value data;
} __attribute__((packed));

struct hv_kvp_msg_get {
	struct hv_kvp_exchg_msg_value data;
};

struct hv_kvp_msg_set {
	struct hv_kvp_exchg_msg_value data;
};

struct hv_kvp_msg_delete {
	__u32 key_size;
	__u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
};

struct hv_kvp_register {
	__u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
};

struct hv_kvp_msg {
	union {
		struct hv_kvp_hdr	kvp_hdr;
		int error;
	};
	union {
		struct hv_kvp_msg_get		kvp_get;
		struct hv_kvp_msg_set		kvp_set;
		struct hv_kvp_msg_delete	kvp_delete;
		struct hv_kvp_msg_enumerate	kvp_enum_data;
		struct hv_kvp_ipaddr_value      kvp_ip_val;
		struct hv_kvp_register		kvp_register;
	} body;
} __attribute__((packed));

struct hv_kvp_ip_msg {
	__u8 operation;
	__u8 pool;
	struct hv_kvp_ipaddr_value      kvp_ip_val;
} __attribute__((packed));

#endif /* _UAPI_HYPERV_H */
Commit	Line	Data
5267cf02 BIP	1	/*
	2	*
	3	* Copyright (c) 2011, Microsoft Corporation.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms and conditions of the GNU General Public License,
	7	* version 2, as published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
	16	* Place - Suite 330, Boston, MA 02111-1307 USA.
	17	*
	18	* Authors:
	19	* Haiyang Zhang <haiyangz@microsoft.com>
	20	* Hank Janssen <hjanssen@microsoft.com>
	21	* K. Y. Srinivasan <kys@microsoft.com>
	22	*
	23	*/
	24
	25	#ifndef _UAPI_HYPERV_H
	26	#define _UAPI_HYPERV_H
	27
01325476 S	28	#include <linux/uuid.h>
01325476 S	29
5267cf02 BIP	30	/*
	31	* Framework version for util services.
	32	*/
	33	#define UTIL_FW_MINOR 0
	34
	35	#define UTIL_WS2K8_FW_MAJOR 1
	36	#define UTIL_WS2K8_FW_VERSION (UTIL_WS2K8_FW_MAJOR << 16 \| UTIL_FW_MINOR)
	37
	38	#define UTIL_FW_MAJOR 3
	39	#define UTIL_FW_VERSION (UTIL_FW_MAJOR << 16 \| UTIL_FW_MINOR)
	40
	41
	42	/*
	43	* Implementation of host controlled snapshot of the guest.
	44	*/
	45
	46	#define VSS_OP_REGISTER 128
	47
	48	enum hv_vss_op {
	49	VSS_OP_CREATE = 0,
	50	VSS_OP_DELETE,
	51	VSS_OP_HOT_BACKUP,
	52	VSS_OP_GET_DM_INFO,
	53	VSS_OP_BU_COMPLETE,
	54	/*
	55	* Following operations are only supported with IC version >= 5.0
	56	*/
	57	VSS_OP_FREEZE, /* Freeze the file systems in the VM */
	58	VSS_OP_THAW, /* Unfreeze the file systems */
	59	VSS_OP_AUTO_RECOVER,
	60	VSS_OP_COUNT /* Number of operations, must be last */
	61	};
	62
	63
	64	/*
	65	* Header for all VSS messages.
	66	*/
	67	struct hv_vss_hdr {
	68	__u8 operation;
	69	__u8 reserved[7];
	70	} __attribute__((packed));
	71
	72
	73	/*
	74	* Flag values for the hv_vss_check_feature. Linux supports only
	75	* one value.
	76	*/
	77	#define VSS_HBU_NO_AUTO_RECOVERY 0x00000005
	78
	79	struct hv_vss_check_feature {
	80	__u32 flags;
	81	} __attribute__((packed));
	82
	83	struct hv_vss_check_dm_info {
	84	__u32 flags;
	85	} __attribute__((packed));
	86
	87	struct hv_vss_msg {
	88	union {
	89	struct hv_vss_hdr vss_hdr;
	90	int error;
	91	};
	92	union {
	93	struct hv_vss_check_feature vss_cf;
94	struct hv_vss_check_dm_info dm_info;
95	};
96	} __attribute__((packed));
97
01325476 S	98	/*
	99	* Implementation of a host to guest copy facility.
	100	*/
	101
	102	#define FCOPY_VERSION_0 0
	103	#define FCOPY_CURRENT_VERSION FCOPY_VERSION_0
	104	#define W_MAX_PATH 260
	105
	106	enum hv_fcopy_op {
	107	START_FILE_COPY = 0,
	108	WRITE_TO_FILE,
	109	COMPLETE_FCOPY,
	110	CANCEL_FCOPY,
	111	};
	112
	113	struct hv_fcopy_hdr {
	114	__u32 operation;
	115	uuid_le service_id0; /* currently unused */
	116	uuid_le service_id1; /* currently unused */
	117	} __attribute__((packed));
	118
	119	#define OVER_WRITE 0x1
	120	#define CREATE_PATH 0x2
	121
	122	struct hv_start_fcopy {
	123	struct hv_fcopy_hdr hdr;
	124	__u16 file_name[W_MAX_PATH];
	125	__u16 path_name[W_MAX_PATH];
	126	__u32 copy_flags;
	127	__u64 file_size;
	128	} __attribute__((packed));
	129
	130	/*
	131	* The file is chunked into fragments.
	132	*/
	133	#define DATA_FRAGMENT (6 * 1024)
	134
	135	struct hv_do_fcopy {
	136	struct hv_fcopy_hdr hdr;
	137	__u64 offset;
	138	__u32 size;
	139	__u8 data[DATA_FRAGMENT];
	140	};
	141
5267cf02 BIP	142	/*
	143	* An implementation of HyperV key value pair (KVP) functionality for Linux.
	144	*
	145	*
	146	* Copyright (C) 2010, Novell, Inc.
	147	* Author : K. Y. Srinivasan <ksrinivasan@novell.com>
	148	*
	149	*/
	150
	151	/*
	152	* Maximum value size - used for both key names and value data, and includes
	153	* any applicable NULL terminators.
	154	*
	155	* Note: This limit is somewhat arbitrary, but falls easily within what is
	156	* supported for all native guests (back to Win 2000) and what is reasonable
	157	* for the IC KVP exchange functionality. Note that Windows Me/98/95 are
	158	* limited to 255 character key names.
	159	*
	160	* MSDN recommends not storing data values larger than 2048 bytes in the
	161	* registry.
	162	*
	163	* Note: This value is used in defining the KVP exchange message - this value
	164	* cannot be modified without affecting the message size and compatibility.
	165	*/
	166
	167	/*
	168	* bytes, including any null terminators
	169	*/
	170	#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048)
	171
	172
	173	/*
	174	* Maximum key size - the registry limit for the length of an entry name
	175	* is 256 characters, including the null terminator
	176	*/
	177
	178	#define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512)
	179
	180	/*
	181	* In Linux, we implement the KVP functionality in two components:
	182	* 1) The kernel component which is packaged as part of the hv_utils driver
	183	* is responsible for communicating with the host and responsible for
	184	* implementing the host/guest protocol. 2) A user level daemon that is
	185	* responsible for data gathering.
	186	*
	187	* Host/Guest Protocol: The host iterates over an index and expects the guest
	188	* to assign a key name to the index and also return the value corresponding to
	189	* the key. The host will have atmost one KVP transaction outstanding at any
	190	* given point in time. The host side iteration stops when the guest returns
	191	* an error. Microsoft has specified the following mapping of key names to
	192	* host specified index:
	193	*
	194	* Index Key Name
	195	* 0 FullyQualifiedDomainName
	196	* 1 IntegrationServicesVersion
	197	* 2 NetworkAddressIPv4
	198	* 3 NetworkAddressIPv6
	199	* 4 OSBuildNumber
	200	* 5 OSName
	201	* 6 OSMajorVersion
	202	* 7 OSMinorVersion
	203	* 8 OSVersion
	204	* 9 ProcessorArchitecture
	205	*
206	* The Windows host expects the Key Name and Key Value to be encoded in utf16.
207	*
208	* Guest Kernel/KVP Daemon Protocol: As noted earlier, we implement all of the
209	* data gathering functionality in a user mode daemon. The user level daemon
210	* is also responsible for binding the key name to the index as well. The
211	* kernel and user-level daemon communicate using a connector channel.
212	*
213	* The user mode component first registers with the
214	* the kernel component. Subsequently, the kernel component requests, data
215	* for the specified keys. In response to this message the user mode component
216	* fills in the value corresponding to the specified key. We overload the
217	* sequence field in the cn_msg header to define our KVP message types.
218	*
219	*
220	* The kernel component simply acts as a conduit for communication between the
221	* Windows host and the user-level daemon. The kernel component passes up the
222	* index received from the Host to the user-level daemon. If the index is
223	* valid (supported), the corresponding key as well as its
224	* value (both are strings) is returned. If the index is invalid
225	* (not supported), a NULL key string is returned.
226	*/
227
228
229	/*
230	* Registry value types.
231	*/
232
233	#define REG_SZ 1
234	#define REG_U32 4
235	#define REG_U64 8
236
237	/*
238	* As we look at expanding the KVP functionality to include
239	* IP injection functionality, we need to maintain binary
240	* compatibility with older daemons.
241	*
242	* The KVP opcodes are defined by the host and it was unfortunate
243	* that I chose to treat the registration operation as part of the
244	* KVP operations defined by the host.
245	* Here is the level of compatibility
246	* (between the user level daemon and the kernel KVP driver) that we
247	* will implement:
248	*
249	* An older daemon will always be supported on a newer driver.
250	* A given user level daemon will require a minimal version of the
251	* kernel driver.
252	* If we cannot handle the version differences, we will fail gracefully
253	* (this can happen when we have a user level daemon that is more
254	* advanced than the KVP driver.
255	*
256	* We will use values used in this handshake for determining if we have
257	* workable user level daemon and the kernel driver. We begin by taking the
258	* registration opcode out of the KVP opcode namespace. We will however,
259	* maintain compatibility with the existing user-level daemon code.
260	*/
261
262	/*
263	* Daemon code not supporting IP injection (legacy daemon).
264	*/
265
266	#define KVP_OP_REGISTER 4
267
268	/*
269	* Daemon code supporting IP injection.
270	* The KVP opcode field is used to communicate the
271	* registration information; so define a namespace that
272	* will be distinct from the host defined KVP opcode.
273	*/
274
275	#define KVP_OP_REGISTER1 100
276
277	enum hv_kvp_exchg_op {
278	KVP_OP_GET = 0,
279	KVP_OP_SET,
280	KVP_OP_DELETE,
281	KVP_OP_ENUMERATE,
282	KVP_OP_GET_IP_INFO,
283	KVP_OP_SET_IP_INFO,
284	KVP_OP_COUNT /* Number of operations, must be last. */
285	};
286
287	enum hv_kvp_exchg_pool {
288	KVP_POOL_EXTERNAL = 0,
289	KVP_POOL_GUEST,
290	KVP_POOL_AUTO,
291	KVP_POOL_AUTO_EXTERNAL,
292	KVP_POOL_AUTO_INTERNAL,
293	KVP_POOL_COUNT /* Number of pools, must be last. */
294	};
295
296	/*
297	* Some Hyper-V status codes.
298	*/
299
300	#define HV_S_OK 0x00000000
301	#define HV_E_FAIL 0x80004005
302	#define HV_S_CONT 0x80070103
303	#define HV_ERROR_NOT_SUPPORTED 0x80070032
304	#define HV_ERROR_MACHINE_LOCKED 0x800704F7
305	#define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F
306	#define HV_INVALIDARG 0x80070057
307	#define HV_GUID_NOTFOUND 0x80041002
314672a2	308	#define HV_ERROR_ALREADY_EXISTS 0x80070050
5267cf02 BIP	309
	310	#define ADDR_FAMILY_NONE 0x00
	311	#define ADDR_FAMILY_IPV4 0x01
	312	#define ADDR_FAMILY_IPV6 0x02
	313
	314	#define MAX_ADAPTER_ID_SIZE 128
	315	#define MAX_IP_ADDR_SIZE 1024
	316	#define MAX_GATEWAY_SIZE 512
	317
	318
	319	struct hv_kvp_ipaddr_value {
	320	__u16 adapter_id[MAX_ADAPTER_ID_SIZE];
	321	__u8 addr_family;
	322	__u8 dhcp_enabled;
	323	__u16 ip_addr[MAX_IP_ADDR_SIZE];
	324	__u16 sub_net[MAX_IP_ADDR_SIZE];
	325	__u16 gate_way[MAX_GATEWAY_SIZE];
	326	__u16 dns_addr[MAX_IP_ADDR_SIZE];
	327	} __attribute__((packed));
	328
	329
	330	struct hv_kvp_hdr {
	331	__u8 operation;
	332	__u8 pool;
	333	__u16 pad;
	334	} __attribute__((packed));
	335
	336	struct hv_kvp_exchg_msg_value {
	337	__u32 value_type;
	338	__u32 key_size;
	339	__u32 value_size;
	340	__u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
	341	union {
	342	__u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
	343	__u32 value_u32;
	344	__u64 value_u64;
	345	};
	346	} __attribute__((packed));
	347
	348	struct hv_kvp_msg_enumerate {
	349	__u32 index;
	350	struct hv_kvp_exchg_msg_value data;
	351	} __attribute__((packed));
	352
	353	struct hv_kvp_msg_get {
	354	struct hv_kvp_exchg_msg_value data;
	355	};
	356
	357	struct hv_kvp_msg_set {
	358	struct hv_kvp_exchg_msg_value data;
	359	};
	360
	361	struct hv_kvp_msg_delete {
	362	__u32 key_size;
	363	__u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
	364	};
	365
	366	struct hv_kvp_register {
	367	__u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
	368	};
	369
	370	struct hv_kvp_msg {
	371	union {
	372	struct hv_kvp_hdr kvp_hdr;
373	int error;
374	};
375	union {
376	struct hv_kvp_msg_get kvp_get;
377	struct hv_kvp_msg_set kvp_set;
378	struct hv_kvp_msg_delete kvp_delete;
379	struct hv_kvp_msg_enumerate kvp_enum_data;
380	struct hv_kvp_ipaddr_value kvp_ip_val;
381	struct hv_kvp_register kvp_register;
382	} body;
383	} __attribute__((packed));
384
385	struct hv_kvp_ip_msg {
386	__u8 operation;
387	__u8 pool;
388	struct hv_kvp_ipaddr_value kvp_ip_val;
389	} __attribute__((packed));
390
391	#endif /* _UAPI_HYPERV_H */