1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/staging/hv/hv.h b/drivers/staging/hv/hv.h
new file mode 100644
index 000000000000..41f5ebb86e17
--- /dev/null
+++ b/drivers/staging/hv/hv.h
@@ -0,0 +1,140 @@
+/*
+ *
+ * Copyright (c) 2009, 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>
+ *
+ */
+
+
+#ifndef __HV_H__
+#define __HV_H__
+
+#include "hv_api.h"
+
+enum {
+	VMBUS_MESSAGE_CONNECTION_ID	= 1,
+	VMBUS_MESSAGE_PORT_ID		= 1,
+	VMBUS_EVENT_CONNECTION_ID	= 2,
+	VMBUS_EVENT_PORT_ID		= 2,
+	VMBUS_MONITOR_CONNECTION_ID	= 3,
+	VMBUS_MONITOR_PORT_ID		= 3,
+	VMBUS_MESSAGE_SINT		= 2,
+};
+
+/* #defines */
+
+#define HV_PRESENT_BIT			0x80000000
+
+#define HV_LINUX_GUEST_ID_LO		0x00000000
+#define HV_LINUX_GUEST_ID_HI		0xB16B00B5
+#define HV_LINUX_GUEST_ID		(((u64)HV_LINUX_GUEST_ID_HI << 32) | \
+					   HV_LINUX_GUEST_ID_LO)
+
+#define HV_CPU_POWER_MANAGEMENT		(1 << 0)
+#define HV_RECOMMENDATIONS_MAX		4
+
+#define HV_X64_MAX			5
+#define HV_CAPS_MAX			8
+
+
+#define HV_HYPERCALL_PARAM_ALIGN	sizeof(u64)
+
+
+/* Service definitions */
+
+#define HV_SERVICE_PARENT_PORT				(0)
+#define HV_SERVICE_PARENT_CONNECTION			(0)
+
+#define HV_SERVICE_CONNECT_RESPONSE_SUCCESS		(0)
+#define HV_SERVICE_CONNECT_RESPONSE_INVALID_PARAMETER	(1)
+#define HV_SERVICE_CONNECT_RESPONSE_UNKNOWN_SERVICE	(2)
+#define HV_SERVICE_CONNECT_RESPONSE_CONNECTION_REJECTED	(3)
+
+#define HV_SERVICE_CONNECT_REQUEST_MESSAGE_ID		(1)
+#define HV_SERVICE_CONNECT_RESPONSE_MESSAGE_ID		(2)
+#define HV_SERVICE_DISCONNECT_REQUEST_MESSAGE_ID	(3)
+#define HV_SERVICE_DISCONNECT_RESPONSE_MESSAGE_ID	(4)
+#define HV_SERVICE_MAX_MESSAGE_ID				(4)
+
+#define HV_SERVICE_PROTOCOL_VERSION (0x0010)
+#define HV_CONNECT_PAYLOAD_BYTE_COUNT 64
+
+/* #define VMBUS_REVISION_NUMBER	6 */
+
+/* Our local vmbus's port and connection id. Anything >0 is fine */
+/* #define VMBUS_PORT_ID		11 */
+
+/* 628180B8-308D-4c5e-B7DB-1BEB62E62EF4 */
+static const struct hv_guid VMBUS_SERVICE_ID = {
+	.data = {
+		0xb8, 0x80, 0x81, 0x62, 0x8d, 0x30, 0x5e, 0x4c,
+		0xb7, 0xdb, 0x1b, 0xeb, 0x62, 0xe6, 0x2e, 0xf4
+	},
+};
+
+#define MAX_NUM_CPUS	32
+
+
+struct hv_input_signal_event_buffer {
+	u64 Align8;
+	struct hv_input_signal_event Event;
+};
+
+struct hv_context {
+	/* We only support running on top of Hyper-V
+	* So at this point this really can only contain the Hyper-V ID
+	*/
+	u64 GuestId;
+
+	void *HypercallPage;
+
+	bool SynICInitialized;
+
+	/*
+	 * This is used as an input param to HvCallSignalEvent hypercall. The
+	 * input param is immutable in our usage and must be dynamic mem (vs
+	 * stack or global). */
+	struct hv_input_signal_event_buffer *SignalEventBuffer;
+	/* 8-bytes aligned of the buffer above */
+	struct hv_input_signal_event *SignalEventParam;
+
+	void *synICMessagePage[MAX_NUM_CPUS];
+	void *synICEventPage[MAX_NUM_CPUS];
+};
+
+extern struct hv_context gHvContext;
+
+
+/* Hv Interface */
+
+extern int HvInit(void);
+
+extern void HvCleanup(void);
+
+extern u16 HvPostMessage(union hv_connection_id connectionId,
+			 enum hv_message_type messageType,
+			 void *payload, size_t payloadSize);
+
+extern u16 HvSignalEvent(void);
+
+extern void HvSynicInit(void *irqarg);
+
+extern void HvSynicCleanup(void *arg);
+
+#endif /* __HV_H__ */