3 * Copyright (c) 2009, Microsoft Corporation.
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.
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
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.
19 * Haiyang Zhang <haiyangz@microsoft.com>
20 * Hank Janssen <hjanssen@microsoft.com>
31 VMBUS_MESSAGE_CONNECTION_ID
= 1,
32 VMBUS_MESSAGE_PORT_ID
= 1,
33 VMBUS_EVENT_CONNECTION_ID
= 2,
34 VMBUS_EVENT_PORT_ID
= 2,
35 VMBUS_MONITOR_CONNECTION_ID
= 3,
36 VMBUS_MONITOR_PORT_ID
= 3,
37 VMBUS_MESSAGE_SINT
= 2,
42 #define HV_PRESENT_BIT 0x80000000
44 #define HV_LINUX_GUEST_ID_LO 0x00000000
45 #define HV_LINUX_GUEST_ID_HI 0xB16B00B5
46 #define HV_LINUX_GUEST_ID (((u64)HV_LINUX_GUEST_ID_HI << 32) | \
49 #define HV_CPU_POWER_MANAGEMENT (1 << 0)
50 #define HV_RECOMMENDATIONS_MAX 4
56 #define HV_HYPERCALL_PARAM_ALIGN sizeof(u64)
59 /* Service definitions */
61 #define HV_SERVICE_PARENT_PORT (0)
62 #define HV_SERVICE_PARENT_CONNECTION (0)
64 #define HV_SERVICE_CONNECT_RESPONSE_SUCCESS (0)
65 #define HV_SERVICE_CONNECT_RESPONSE_INVALID_PARAMETER (1)
66 #define HV_SERVICE_CONNECT_RESPONSE_UNKNOWN_SERVICE (2)
67 #define HV_SERVICE_CONNECT_RESPONSE_CONNECTION_REJECTED (3)
69 #define HV_SERVICE_CONNECT_REQUEST_MESSAGE_ID (1)
70 #define HV_SERVICE_CONNECT_RESPONSE_MESSAGE_ID (2)
71 #define HV_SERVICE_DISCONNECT_REQUEST_MESSAGE_ID (3)
72 #define HV_SERVICE_DISCONNECT_RESPONSE_MESSAGE_ID (4)
73 #define HV_SERVICE_MAX_MESSAGE_ID (4)
75 #define HV_SERVICE_PROTOCOL_VERSION (0x0010)
76 #define HV_CONNECT_PAYLOAD_BYTE_COUNT 64
78 /* #define VMBUS_REVISION_NUMBER 6 */
80 /* Our local vmbus's port and connection id. Anything >0 is fine */
81 /* #define VMBUS_PORT_ID 11 */
83 /* 628180B8-308D-4c5e-B7DB-1BEB62E62EF4 */
84 static const struct hv_guid VMBUS_SERVICE_ID
= {
86 0xb8, 0x80, 0x81, 0x62, 0x8d, 0x30, 0x5e, 0x4c,
87 0xb7, 0xdb, 0x1b, 0xeb, 0x62, 0xe6, 0x2e, 0xf4
91 #define MAX_NUM_CPUS 32
94 struct hv_input_signal_event_buffer
{
96 struct hv_input_signal_event event
;
100 /* We only support running on top of Hyper-V
101 * So at this point this really can only contain the Hyper-V ID
105 void *hypercall_page
;
107 bool synic_initialized
;
110 * This is used as an input param to HvCallSignalEvent hypercall. The
111 * input param is immutable in our usage and must be dynamic mem (vs
112 * stack or global). */
113 struct hv_input_signal_event_buffer
*signal_event_buffer
;
114 /* 8-bytes aligned of the buffer above */
115 struct hv_input_signal_event
*signal_event_param
;
117 void *synic_message_page
[MAX_NUM_CPUS
];
118 void *synic_event_page
[MAX_NUM_CPUS
];
121 extern struct hv_context hv_context
;
126 extern int HvInit(void);
128 extern void HvCleanup(void);
130 extern u16
HvPostMessage(union hv_connection_id connectionId
,
131 enum hv_message_type messageType
,
132 void *payload
, size_t payloadSize
);
134 extern u16
HvSignalEvent(void);
136 extern void HvSynicInit(void *irqarg
);
138 extern void HvSynicCleanup(void *arg
);
140 #endif /* __HV_H__ */