From: Hank Janssen <hjanssen@microsoft.com>

These are the header files for the API to talk to the Hyper-V
core.

Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/staging/hv/include/ChannelMessages.h       |  312 ++++++++
 drivers/staging/hv/include/HvHalApi.h              |   32 +
 drivers/staging/hv/include/HvHcApi.h               |   60 ++
 drivers/staging/hv/include/HvPtApi.h               |   86 ++
 drivers/staging/hv/include/HvStatus.h              |  718 +++++++++++++++++
 drivers/staging/hv/include/HvSynicApi.h            |  490 ++++++++++++
 drivers/staging/hv/include/HvTypes.h               |   31 +
 drivers/staging/hv/include/HvVpApi.h               |   51 ++
 drivers/staging/hv/include/List.h                  |  269 +++++++
 drivers/staging/hv/include/VmbusChannelInterface.h |  131 +++
 drivers/staging/hv/include/VmbusPacketFormat.h     |  322 ++++++++
 drivers/staging/hv/include/nvspprotocol.h          |  306 +++++++
 drivers/staging/hv/include/rndis.h                 |  836 ++++++++++++++++++++
 drivers/staging/hv/include/vstorage.h              |  309 ++++++++
 14 files changed, 3953 insertions(+), 0 deletions(-)
 create mode 100644 drivers/staging/hv/include/ChannelMessages.h
 create mode 100644 drivers/staging/hv/include/HvHalApi.h
 create mode 100644 drivers/staging/hv/include/HvHcApi.h
 create mode 100644 drivers/staging/hv/include/HvPtApi.h
 create mode 100644 drivers/staging/hv/include/HvStatus.h
 create mode 100644 drivers/staging/hv/include/HvSynicApi.h
 create mode 100644 drivers/staging/hv/include/HvTypes.h
 create mode 100644 drivers/staging/hv/include/HvVpApi.h
 create mode 100644 drivers/staging/hv/include/List.h
 create mode 100644 drivers/staging/hv/include/VmbusChannelInterface.h
 create mode 100644 drivers/staging/hv/include/VmbusPacketFormat.h
 create mode 100644 drivers/staging/hv/include/nvspprotocol.h
 create mode 100644 drivers/staging/hv/include/rndis.h
 create mode 100644 drivers/staging/hv/include/vstorage.h

diff --git a/drivers/staging/hv/include/ChannelMessages.h b/drivers/staging/hv/include/ChannelMessages.h
new file mode 100644
index 0000000..bd2159b
--- /dev/null
+++ b/drivers/staging/hv/include/ChannelMessages.h
@@ -0,0 +1,312 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+
+#include <VmbusPacketFormat.h>
+
+#define C_ASSERT(x)
+typedef UINT32 NTSTATUS;
+
+#pragma pack(push,1)
+
+//
+// Version 1 messages
+//
+
+typedef enum _VMBUS_CHANNEL_MESSAGE_TYPE
+{
+    ChannelMessageInvalid                   =  0,
+    ChannelMessageOfferChannel              =  1,
+    ChannelMessageRescindChannelOffer       =  2,
+    ChannelMessageRequestOffers             =  3,
+    ChannelMessageAllOffersDelivered        =  4,
+    ChannelMessageOpenChannel               =  5,
+    ChannelMessageOpenChannelResult         =  6,
+    ChannelMessageCloseChannel              =  7,
+    ChannelMessageGpadlHeader               =  8,
+    ChannelMessageGpadlBody                 =  9,
+    ChannelMessageGpadlCreated              = 10,
+    ChannelMessageGpadlTeardown             = 11,
+    ChannelMessageGpadlTorndown             = 12,
+    ChannelMessageRelIdReleased             = 13,
+    ChannelMessageInitiateContact           = 14,
+    ChannelMessageVersionResponse           = 15,
+    ChannelMessageUnload                    = 16,
+#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
+    ChannelMessageViewRangeAdd              = 17,
+    ChannelMessageViewRangeRemove           = 18,
+#endif
+    ChannelMessageCount
+} VMBUS_CHANNEL_MESSAGE_TYPE, *PVMBUS_CHANNEL_MESSAGE_TYPE;
+
+// begin_wpp config
+// CUSTOM_TYPE(ChannelMessageType, ItemEnum(_VMBUS_CHANNEL_MESSAGE_TYPE));
+// end_wpp
+
+typedef struct _VMBUS_CHANNEL_MESSAGE_HEADER
+{
+    VMBUS_CHANNEL_MESSAGE_TYPE  MessageType;
+    UINT32                      Padding;
+} VMBUS_CHANNEL_MESSAGE_HEADER, *PVMBUS_CHANNEL_MESSAGE_HEADER;
+
+// Query VMBus Version parameters
+typedef struct _VMBUS_CHANNEL_QUERY_VMBUS_VERSION
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32 Version;
+} VMBUS_CHANNEL_QUERY_VMBUS_VERSION, *PVMBUS_CHANNEL_QUERY_VMBUS_VERSION;
+
+// VMBus Version Supported parameters
+typedef struct _VMBUS_CHANNEL_VERSION_SUPPORTED
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    BOOLEAN VersionSupported;
+} VMBUS_CHANNEL_VERSION_SUPPORTED, *PVMBUS_CHANNEL_VERSION_SUPPORTED;
+
+// Offer Channel parameters
+typedef struct _VMBUS_CHANNEL_OFFER_CHANNEL
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    VMBUS_CHANNEL_OFFER Offer;
+    UINT32  ChildRelId;
+    UINT8   MonitorId;
+    BOOLEAN MonitorAllocated;
+} VMBUS_CHANNEL_OFFER_CHANNEL, *PVMBUS_CHANNEL_OFFER_CHANNEL;
+
+//
+// Make sure VMBUS_CHANNEL_OFFER_CHANNEL fits into Synic message.
+//
+C_ASSERT(sizeof(VMBUS_CHANNEL_OFFER_CHANNEL) <= MAXIMUM_SYNIC_MESSAGE_BYTES);
+
+// Rescind Offer parameters
+typedef struct _VMBUS_CHANNEL_RESCIND_OFFER
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32          ChildRelId;
+} VMBUS_CHANNEL_RESCIND_OFFER, *PVMBUS_CHANNEL_RESCIND_OFFER;
+
+// Request Offer -- no parameters, SynIC message contains the partition ID
+// Set Snoop -- no parameters, SynIC message contains the partition ID
+// Clear Snoop -- no parameters, SynIC message contains the partition ID
+// All Offers Delivered -- no parameters, SynIC message contains the partition ID
+// Flush Client -- no parameters, SynIC message contains the partition ID
+
+// Open Channel parameters
+typedef struct _VMBUS_CHANNEL_OPEN_CHANNEL
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+
+    //
+    // Identifies the specific VMBus channel that is being opened.
+    //
+    UINT32          ChildRelId;
+
+    //
+    // ID making a particular open request at a channel offer unique.
+    //
+    UINT32          OpenId;
+
+    //
+    // GPADL for the channel's ring buffer.
+    //
+    GPADL_HANDLE    RingBufferGpadlHandle;
+
+    //
+    // GPADL for the channel's server context save area.
+    //
+    GPADL_HANDLE    ServerContextAreaGpadlHandle;
+
+    //
+    // The upstream ring buffer begins at offset zero in the memory described
+    // by RingBufferGpadlHandle. The downstream ring buffer follows it at this
+    // offset (in pages).
+    //
+    UINT32          DownstreamRingBufferPageOffset;
+
+    //
+    // User-specific data to be passed along to the server endpoint.
+    //
+    UCHAR           UserData[MAX_USER_DEFINED_BYTES];
+
+} VMBUS_CHANNEL_OPEN_CHANNEL, *PVMBUS_CHANNEL_OPEN_CHANNEL;
+
+// Reopen Channel parameters;
+typedef VMBUS_CHANNEL_OPEN_CHANNEL VMBUS_CHANNEL_REOPEN_CHANNEL, *PVMBUS_CHANNEL_REOPEN_CHANNEL;
+
+// Open Channel Result parameters
+typedef struct _VMBUS_CHANNEL_OPEN_RESULT
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32      ChildRelId;
+    UINT32      OpenId;
+    NTSTATUS    Status;
+} VMBUS_CHANNEL_OPEN_RESULT, *PVMBUS_CHANNEL_OPEN_RESULT;
+
+// Close channel parameters;
+typedef struct _VMBUS_CHANNEL_CLOSE_CHANNEL
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32      ChildRelId;
+} VMBUS_CHANNEL_CLOSE_CHANNEL, *PVMBUS_CHANNEL_CLOSE_CHANNEL;
+
+// Channel Message GPADL
+#define GPADL_TYPE_RING_BUFFER          1
+#define GPADL_TYPE_SERVER_SAVE_AREA     2
+#define GPADL_TYPE_TRANSACTION          8
+
+//
+// The number of PFNs in a GPADL message is defined by the number of pages
+// that would be spanned by ByteCount and ByteOffset.  If the implied number
+// of PFNs won't fit in this packet, there will be a follow-up packet that
+// contains more.
+//
+
+typedef struct _VMBUS_CHANNEL_GPADL_HEADER
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32      ChildRelId;
+    UINT32      Gpadl;
+    UINT16      RangeBufLen;
+    UINT16      RangeCount;
+    GPA_RANGE   Range[0];
+} VMBUS_CHANNEL_GPADL_HEADER, *PVMBUS_CHANNEL_GPADL_HEADER;
+
+
+//
+// This is the followup packet that contains more PFNs.
+//
+
+typedef struct _VMBUS_CHANNEL_GPADL_BODY
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              MessageNumber;
+    UINT32              Gpadl;
+    UINT64              Pfn[0];
+} VMBUS_CHANNEL_GPADL_BODY, *PVMBUS_CHANNEL_GPADL_BODY;
+
+
+typedef struct _VMBUS_CHANNEL_GPADL_CREATED
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              ChildRelId;
+    UINT32              Gpadl;
+    UINT32              CreationStatus;
+} VMBUS_CHANNEL_GPADL_CREATED, *PVMBUS_CHANNEL_GPADL_CREATED;
+
+typedef struct _VMBUS_CHANNEL_GPADL_TEARDOWN
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              ChildRelId;
+    UINT32              Gpadl;
+} VMBUS_CHANNEL_GPADL_TEARDOWN, *PVMBUS_CHANNEL_GPADL_TEARDOWN;
+
+typedef struct _VMBUS_CHANNEL_GPADL_TORNDOWN
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              Gpadl;
+} VMBUS_CHANNEL_GPADL_TORNDOWN, *PVMBUS_CHANNEL_GPADL_TORNDOWN;
+
+#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD
+typedef struct _VMBUS_CHANNEL_VIEW_RANGE_ADD
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    PHYSICAL_ADDRESS    ViewRangeBase;
+    UINT64              ViewRangeLength;
+    UINT32              ChildRelId;
+} VMBUS_CHANNEL_VIEW_RANGE_ADD, *PVMBUS_CHANNEL_VIEW_RANGE_ADD;
+
+typedef struct _VMBUS_CHANNEL_VIEW_RANGE_REMOVE
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    PHYSICAL_ADDRESS    ViewRangeBase;
+    UINT32              ChildRelId;
+} VMBUS_CHANNEL_VIEW_RANGE_REMOVE, *PVMBUS_CHANNEL_VIEW_RANGE_REMOVE;
+#endif
+
+typedef struct _VMBUS_CHANNEL_RELID_RELEASED
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              ChildRelId;
+} VMBUS_CHANNEL_RELID_RELEASED, *PVMBUS_CHANNEL_RELID_RELEASED;
+
+typedef struct _VMBUS_CHANNEL_INITIATE_CONTACT
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    UINT32              VMBusVersionRequested;
+    UINT32              Padding2;
+    UINT64              InterruptPage;
+    UINT64              MonitorPage1;
+    UINT64              MonitorPage2;
+} VMBUS_CHANNEL_INITIATE_CONTACT, *PVMBUS_CHANNEL_INITIATE_CONTACT;
+
+typedef struct _VMBUS_CHANNEL_VERSION_RESPONSE
+{
+    VMBUS_CHANNEL_MESSAGE_HEADER Header;
+    BOOLEAN     VersionSupported;
+} VMBUS_CHANNEL_VERSION_RESPONSE, *PVMBUS_CHANNEL_VERSION_RESPONSE;
+
+typedef VMBUS_CHANNEL_MESSAGE_HEADER VMBUS_CHANNEL_UNLOAD, *PVMBUS_CHANNEL_UNLOAD;
+
+//
+// Kind of a table to use the preprocessor to get us the right type for a
+// specified message ID. Used with ChAllocateSendMessage()
+//
+#define ChannelMessageQueryVmbusVersion_TYPE    VMBUS_CHANNEL_MESSAGE_HEADER
+#define ChannelMessageVmbusVersionSupported_TYPE VMBUS_CHANNEL_VERSION_SUPPORTED
+#define ChannelMessageOfferChannel_TYPE         VMBUS_CHANNEL_OFFER_CHANNEL
+#define ChannelMessageRescindChannelOffer_TYPE  VMBUS_CHANNEL_RESCIND_OFFER
+#define ChannelMessageRequestOffers_TYPE        VMBUS_CHANNEL_MESSAGE_HEADER
+#define ChannelMessageAllOffersDelivered_TYPE   VMBUS_CHANNEL_MESSAGE_HEADER
+#define ChannelMessageOpenChannel_TYPE          VMBUS_CHANNEL_OPEN_CHANNEL
+#define ChannelMessageOpenChannelResult_TYPE    VMBUS_CHANNEL_OPEN_RESULT
+#define ChannelMessageCloseChannel_TYPE         VMBUS_CHANNEL_CLOSE_CHANNEL
+#define ChannelMessageAllGpadlsUnmapped_TYPE    VMBUS_CHANNEL_CLOSE_CHANNEL
+#define ChannelMessageGpadlHeader_TYPE          VMBUS_CHANNEL_GPADL_HEADER
+#define ChannelMessageGpadlBody_TYPE            VMBUS_CHANNEL_GPADL_BODY
+#define ChannelMessageGpadlCreated_TYPE         VMBUS_CHANNEL_GPADL_CREATED
+#define ChannelMessageGpadlTeardown_TYPE        VMBUS_CHANNEL_GPADL_TEARDOWN
+#define ChannelMessageGpadlTorndown_TYPE        VMBUS_CHANNEL_GPADL_TORNDOWN
+#define ChannelMessageViewRangeAdd_TYPE         VMBUS_CHANNEL_VIEW_RANGE_ADD
+#define ChannelMessageViewRangeRemove_TYPE      VMBUS_CHANNEL_VIEW_RANGE_REMOVE
+#define ChannelMessageRelIdReleased_TYPE        VMBUS_CHANNEL_RELID_RELEASED
+#define ChannelMessageInitiateContact_TYPE      VMBUS_CHANNEL_INITIATE_CONTACT
+#define ChannelMessageVersionResponse_TYPE      VMBUS_CHANNEL_VERSION_RESPONSE
+#define ChannelMessageUnload_TYPE               VMBUS_CHANNEL_UNLOAD
+
+//
+// Preprocessor wrapper to ChAllocateSendMessageSize() converting the return
+// value to the correct pointer and calculate the needed size.
+//
+// Argument:
+//
+//  Id - the numberic ID (type VMBUS_CHANNEL_MESSAGE_TYPE) of the message to
+//       send.
+//
+#define ChAllocateSendMessage(Id, Fn, Context)   \
+    (Id##_TYPE*)ChAllocateSendMessageSized(sizeof(Id##_TYPE), Id, Fn, Context)
+
+
+#pragma pack(pop)
+
diff --git a/drivers/staging/hv/include/HvHalApi.h b/drivers/staging/hv/include/HvHalApi.h
new file mode 100644
index 0000000..89ddb74
--- /dev/null
+++ b/drivers/staging/hv/include/HvHalApi.h
@@ -0,0 +1,32 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+
+
+//
+// Time in the hypervisor is measured in 100 nanosecond units
+//
+typedef UINT64 HV_NANO100_TIME,     *PHV_NANO100_TIME;
+typedef UINT64 HV_NANO100_DURATION, *PHV_NANO100_DURATION;
diff --git a/drivers/staging/hv/include/HvHcApi.h b/drivers/staging/hv/include/HvHcApi.h
new file mode 100644
index 0000000..774bf35
--- /dev/null
+++ b/drivers/staging/hv/include/HvHcApi.h
@@ -0,0 +1,60 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+
+//
+// Declare the various hypercall operations.
+//
+typedef enum _HV_CALL_CODE
+{
+
+    HvCallPostMessage                   = 0x005c,
+    HvCallSignalEvent                   = 0x005d,
+
+} HV_CALL_CODE, *PHV_CALL_CODE;
+//
+// Definition of the HvPostMessage hypercall input structure.
+//
+
+typedef struct _HV_INPUT_POST_MESSAGE
+{
+    HV_CONNECTION_ID    ConnectionId;
+    UINT32              Reserved;
+    HV_MESSAGE_TYPE     MessageType;
+    UINT32              PayloadSize;
+    UINT64              Payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
+} HV_INPUT_POST_MESSAGE, *PHV_INPUT_POST_MESSAGE;
+
+
+//
+// Definition of the HvSignalEvent hypercall input structure.
+//
+
+typedef struct _HV_INPUT_SIGNAL_EVENT
+{
+    HV_CONNECTION_ID ConnectionId;
+    UINT16           FlagNumber;
+    UINT16           RsvdZ;
+} HV_INPUT_SIGNAL_EVENT, *PHV_INPUT_SIGNAL_EVENT;
diff --git a/drivers/staging/hv/include/HvPtApi.h b/drivers/staging/hv/include/HvPtApi.h
new file mode 100644
index 0000000..7b59234
--- /dev/null
+++ b/drivers/staging/hv/include/HvPtApi.h
@@ -0,0 +1,86 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+
+//
+// Versioning definitions used for guests reporting themselves to the
+// hypervisor, and visa versa.
+// ==================================================================
+//
+
+//
+// Version info reported by guest OS's
+//
+typedef enum _HV_GUEST_OS_VENDOR
+{
+    HvGuestOsVendorMicrosoft        = 0x0001
+
+} HV_GUEST_OS_VENDOR, *PHV_GUEST_OS_VENDOR;
+
+typedef enum _HV_GUEST_OS_MICROSOFT_IDS
+{
+    HvGuestOsMicrosoftUndefined     = 0x00,
+    HvGuestOsMicrosoftMSDOS         = 0x01,
+    HvGuestOsMicrosoftWindows3x     = 0x02,
+    HvGuestOsMicrosoftWindows9x     = 0x03,
+    HvGuestOsMicrosoftWindowsNT     = 0x04,
+    HvGuestOsMicrosoftWindowsCE     = 0x05
+
+} HV_GUEST_OS_MICROSOFT_IDS, *PHV_GUEST_OS_MICROSOFT_IDS;
+
+//
+// Declare the MSR used to identify the guest OS.
+//
+#define HV_X64_MSR_GUEST_OS_ID 0x40000000
+
+typedef union _HV_X64_MSR_GUEST_OS_ID_CONTENTS
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 BuildNumber    : 16;
+        UINT64 ServiceVersion : 8; // Service Pack, etc.
+        UINT64 MinorVersion   : 8;
+        UINT64 MajorVersion   : 8;
+        UINT64 OsId           : 8; // HV_GUEST_OS_MICROSOFT_IDS (If Vendor=MS)
+        UINT64 VendorId       : 16; // HV_GUEST_OS_VENDOR
+    };
+} HV_X64_MSR_GUEST_OS_ID_CONTENTS, *PHV_X64_MSR_GUEST_OS_ID_CONTENTS;
+
+//
+// Declare the MSR used to setup pages used to communicate with the hypervisor.
+//
+#define HV_X64_MSR_HYPERCALL 0x40000001
+
+typedef union _HV_X64_MSR_HYPERCALL_CONTENTS
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 Enable               : 1;
+        UINT64 Reserved             : 11;
+        UINT64 GuestPhysicalAddress : 52;
+    };
+} HV_X64_MSR_HYPERCALL_CONTENTS, *PHV_X64_MSR_HYPERCALL_CONTENTS;
diff --git a/drivers/staging/hv/include/HvStatus.h b/drivers/staging/hv/include/HvStatus.h
new file mode 100644
index 0000000..4a2692f
--- /dev/null
+++ b/drivers/staging/hv/include/HvStatus.h
@@ -0,0 +1,718 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+// begin_hvgdk
+//
+// Status codes for hypervisor operations.
+//
+typedef UINT16 HV_STATUS, *PHV_STATUS;
+
+//
+// MessageId: HV_STATUS_SUCCESS
+//
+// MessageText:
+//
+// The specified hypercall succeeded
+//
+#define HV_STATUS_SUCCESS                ((HV_STATUS)0x0000)
+
+//
+// MessageId: HV_STATUS_INVALID_HYPERCALL_CODE
+//
+// MessageText:
+//
+// The hypervisor does not support the operation because the specified hypercall code is not supported.
+//
+#define HV_STATUS_INVALID_HYPERCALL_CODE ((HV_STATUS)0x0002)
+
+//
+// MessageId: HV_STATUS_INVALID_HYPERCALL_INPUT
+//
+// MessageText:
+//
+// The hypervisor does not support the operation because the encoding for the hypercall input register is not supported.
+//
+#define HV_STATUS_INVALID_HYPERCALL_INPUT ((HV_STATUS)0x0003)
+
+//
+// MessageId: HV_STATUS_INVALID_ALIGNMENT
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation beacuse a parameter has an invalid alignment.
+//
+#define HV_STATUS_INVALID_ALIGNMENT      ((HV_STATUS)0x0004)
+
+//
+// MessageId: HV_STATUS_INVALID_PARAMETER
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation beacuse an invalid parameter was specified.
+//
+#define HV_STATUS_INVALID_PARAMETER      ((HV_STATUS)0x0005)
+
+//
+// MessageId: HV_STATUS_ACCESS_DENIED
+//
+// MessageText:
+//
+// Access to the specified object was denied.
+//
+#define HV_STATUS_ACCESS_DENIED          ((HV_STATUS)0x0006)
+
+//
+// MessageId: HV_STATUS_INVALID_PARTITION_STATE
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation because the partition is entering or in an invalid state.
+//
+#define HV_STATUS_INVALID_PARTITION_STATE ((HV_STATUS)0x0007)
+
+//
+// MessageId: HV_STATUS_OPERATION_DENIED
+//
+// MessageText:
+//
+// The operation is not allowed in the current state.
+//
+#define HV_STATUS_OPERATION_DENIED       ((HV_STATUS)0x0008)
+
+//
+// MessageId: HV_STATUS_UNKNOWN_PROPERTY
+//
+// MessageText:
+//
+// The hypervisor does not recognize the specified partition property.
+//
+#define HV_STATUS_UNKNOWN_PROPERTY       ((HV_STATUS)0x0009)
+
+//
+// MessageId: HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE
+//
+// MessageText:
+//
+// The specified value of a partition property is out of range or violates an invariant.
+//
+#define HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE ((HV_STATUS)0x000A)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_MEMORY
+//
+// MessageText:
+//
+// There is not enough memory in the hypervisor pool to complete the operation.
+//
+#define HV_STATUS_INSUFFICIENT_MEMORY    ((HV_STATUS)0x000B)
+
+//
+// MessageId: HV_STATUS_PARTITION_TOO_DEEP
+//
+// MessageText:
+//
+// The maximum partition depth has been exceeded for the partition hierarchy.
+//
+#define HV_STATUS_PARTITION_TOO_DEEP     ((HV_STATUS)0x000C)
+
+//
+// MessageId: HV_STATUS_INVALID_PARTITION_ID
+//
+// MessageText:
+//
+// A partition with the specified partition Id does not exist.
+//
+#define HV_STATUS_INVALID_PARTITION_ID   ((HV_STATUS)0x000D)
+
+//
+// MessageId: HV_STATUS_INVALID_VP_INDEX
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation because the specified VP index is invalid.
+//
+#define HV_STATUS_INVALID_VP_INDEX       ((HV_STATUS)0x000E)
+
+//
+// MessageId: HV_STATUS_NOT_FOUND
+//
+// MessageText:
+//
+// The iteration is complete; no addition items in the iteration could be found.
+//
+#define HV_STATUS_NOT_FOUND              ((HV_STATUS)0x0010)
+
+//
+// MessageId: HV_STATUS_INVALID_PORT_ID
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation because the specified port identifier is invalid.
+//
+#define HV_STATUS_INVALID_PORT_ID        ((HV_STATUS)0x0011)
+
+//
+// MessageId: HV_STATUS_INVALID_CONNECTION_ID
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation because the specified connection identifier is invalid.
+//
+#define HV_STATUS_INVALID_CONNECTION_ID  ((HV_STATUS)0x0012)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_BUFFERS
+//
+// MessageText:
+//
+// You did not supply enough message buffers to send a message.
+//
+#define HV_STATUS_INSUFFICIENT_BUFFERS   ((HV_STATUS)0x0013)
+
+//
+// MessageId: HV_STATUS_NOT_ACKNOWLEDGED
+//
+// MessageText:
+//
+// The previous virtual interrupt has not been acknowledged.
+//
+#define HV_STATUS_NOT_ACKNOWLEDGED       ((HV_STATUS)0x0014)
+
+//
+// MessageId: HV_STATUS_INVALID_VP_STATE
+//
+// MessageText:
+//
+// A virtual processor is not in the correct state for the performance of the indicated operation.
+//
+#define HV_STATUS_INVALID_VP_STATE       ((HV_STATUS)0x0015)
+
+//
+// MessageId: HV_STATUS_ACKNOWLEDGED
+//
+// MessageText:
+//
+// The previous virtual interrupt has already been acknowledged.
+//
+#define HV_STATUS_ACKNOWLEDGED           ((HV_STATUS)0x0016)
+
+//
+// MessageId: HV_STATUS_INVALID_SAVE_RESTORE_STATE
+//
+// MessageText:
+//
+// The indicated partition is not in a valid state for saving or restoring.
+//
+#define HV_STATUS_INVALID_SAVE_RESTORE_STATE ((HV_STATUS)0x0017)
+
+//
+// MessageId: HV_STATUS_INVALID_SYNIC_STATE
+//
+// MessageText:
+//
+// The hypervisor could not complete the operation because a required feature of the synthetic interrupt controller (SynIC) was disabled.
+//
+#define HV_STATUS_INVALID_SYNIC_STATE    ((HV_STATUS)0x0018)
+
+//
+// MessageId: HV_STATUS_OBJECT_IN_USE
+//
+// MessageText:
+//
+// The hypervisor could not perform the operation because the object or value was either already in use or being used for a purpose that would not permit completing the operation.
+//
+#define HV_STATUS_OBJECT_IN_USE          ((HV_STATUS)0x0019)
+
+//
+// MessageId: HV_STATUS_INVALID_PROXIMITY_DOMAIN_INFO
+//
+// MessageText:
+//
+// The proximity domain information is invalid.
+//
+#define HV_STATUS_INVALID_PROXIMITY_DOMAIN_INFO ((HV_STATUS)0x001A)
+
+//
+// MessageId: HV_STATUS_NO_DATA
+//
+// MessageText:
+//
+// An attempt to retrieve debugging data failed because none was available.
+//
+#define HV_STATUS_NO_DATA                ((HV_STATUS)0x001B)
+
+//
+// MessageId: HV_STATUS_INACTIVE
+//
+// MessageText:
+//
+// The physical connection being used for debuggging has not recorded any receive activity since the last operation.
+//
+#define HV_STATUS_INACTIVE               ((HV_STATUS)0x001C)
+
+//
+// MessageId: HV_STATUS_NO_RESOURCES
+//
+// MessageText:
+//
+// There are not enough resources to complete the operation.
+//
+#define HV_STATUS_NO_RESOURCES           ((HV_STATUS)0x001D)
+
+//
+// MessageId: HV_STATUS_FEATURE_UNAVAILABLE
+//
+// MessageText:
+//
+// A hypervisor feature is not available to the user.
+//
+#define HV_STATUS_FEATURE_UNAVAILABLE    ((HV_STATUS)0x001E)
+
+// end_hvgdk
+
+//
+// MessageId: HV_STATUS_UNSUCCESSFUL
+//
+// MessageText:
+//
+// {Operation Failed}
+// The requested operation was unsuccessful.
+//
+#define HV_STATUS_UNSUCCESSFUL           ((HV_STATUS)0x1001)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_BUFFER
+//
+// MessageText:
+//
+// The specified buffer was too small to contain all of the requested data.
+//
+#define HV_STATUS_INSUFFICIENT_BUFFER    ((HV_STATUS)0x1002)
+
+//
+// MessageId: HV_STATUS_GPA_NOT_PRESENT
+//
+// MessageText:
+//
+// The guest physical address is not currently associated with a system physical address.
+//
+#define HV_STATUS_GPA_NOT_PRESENT        ((HV_STATUS)0x1003)
+
+//
+// MessageId: HV_STATUS_GUEST_PAGE_FAULT
+//
+// MessageText:
+//
+// The operation would have resulted in a page fault in the guest.
+//
+#define HV_STATUS_GUEST_PAGE_FAULT       ((HV_STATUS)0x1004)
+
+//
+// MessageId: HV_STATUS_RUNDOWN_DISABLED
+//
+// MessageText:
+//
+// The operation cannot proceed as the rundown object was marked disabled.
+//
+#define HV_STATUS_RUNDOWN_DISABLED       ((HV_STATUS)0x1005)
+
+//
+// MessageId: HV_STATUS_KEY_ALREADY_EXISTS
+//
+// MessageText:
+//
+// The entry cannot be added as another entry with the same key already exists.
+//
+#define HV_STATUS_KEY_ALREADY_EXISTS     ((HV_STATUS)0x1006)
+
+//
+// MessageId: HV_STATUS_GPA_INTERCEPT
+//
+// MessageText:
+//
+// The operation resulted an intercept on a region of guest physical memory.
+//
+#define HV_STATUS_GPA_INTERCEPT          ((HV_STATUS)0x1007)
+
+//
+// MessageId: HV_STATUS_GUEST_GENERAL_PROTECTION_FAULT
+//
+// MessageText:
+//
+// The operation would have resulted in a general protection fault in the guest.
+//
+#define HV_STATUS_GUEST_GENERAL_PROTECTION_FAULT ((HV_STATUS)0x1008)
+
+//
+// MessageId: HV_STATUS_GUEST_STACK_FAULT
+//
+// MessageText:
+//
+// The operation would have resulted in a stack fault in the guest.
+//
+#define HV_STATUS_GUEST_STACK_FAULT      ((HV_STATUS)0x1009)
+
+//
+// MessageId: HV_STATUS_GUEST_INVALID_OPCODE_FAULT
+//
+// MessageText:
+//
+// The operation would have resulted in an invalid opcode fault in the guest.
+//
+#define HV_STATUS_GUEST_INVALID_OPCODE_FAULT ((HV_STATUS)0x100A)
+
+//
+// MessageId: HV_STATUS_FINALIZE_INCOMPLETE
+//
+// MessageText:
+//
+// The partition is not completely finalized.
+//
+#define HV_STATUS_FINALIZE_INCOMPLETE    ((HV_STATUS)0x100B)
+
+//
+// MessageId: HV_STATUS_GUEST_MACHINE_CHECK_ABORT
+//
+// MessageText:
+//
+// The operation would have resulted in an machine check abort in the guest.
+//
+#define HV_STATUS_GUEST_MACHINE_CHECK_ABORT ((HV_STATUS)0x100C)
+
+//
+// MessageId: HV_STATUS_ILLEGAL_OVERLAY_ACCESS
+//
+// MessageText:
+//
+// An illegal access was attempted to an overlay page.
+//
+#define HV_STATUS_ILLEGAL_OVERLAY_ACCESS ((HV_STATUS)0x100D)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_SYSTEM_VA
+//
+// MessageText:
+//
+// There is not enough system VA space available to satisfy the request,
+//
+#define HV_STATUS_INSUFFICIENT_SYSTEM_VA ((HV_STATUS)0x100E)
+
+//
+// MessageId: HV_STATUS_VIRTUAL_ADDRESS_NOT_MAPPED
+//
+// MessageText:
+//
+// The passed virtual address was not mapped in the hypervisor address space.
+//
+#define HV_STATUS_VIRTUAL_ADDRESS_NOT_MAPPED ((HV_STATUS)0x100F)
+
+//
+// MessageId: HV_STATUS_NOT_IMPLEMENTED
+//
+// MessageText:
+//
+// The requested operation is not implemented in this version of the hypervisor.
+//
+#define HV_STATUS_NOT_IMPLEMENTED        ((HV_STATUS)0x1010)
+
+//
+// MessageId: HV_STATUS_VMX_INSTRUCTION_FAILED
+//
+// MessageText:
+//
+// The requested VMX instruction failed to complete succesfully.
+//
+#define HV_STATUS_VMX_INSTRUCTION_FAILED ((HV_STATUS)0x1011)
+
+//
+// MessageId: HV_STATUS_VMX_INSTRUCTION_FAILED_WITH_STATUS
+//
+// MessageText:
+//
+// The requested VMX instruction failed to complete succesfully indicating status.
+//
+#define HV_STATUS_VMX_INSTRUCTION_FAILED_WITH_STATUS ((HV_STATUS)0x1012)
+
+//
+// MessageId: HV_STATUS_MSR_ACCESS_FAILED
+//
+// MessageText:
+//
+// The requested access to the model specific register failed.
+//
+#define HV_STATUS_MSR_ACCESS_FAILED      ((HV_STATUS)0x1013)
+
+//
+// MessageId: HV_STATUS_CR_ACCESS_FAILED
+//
+// MessageText:
+//
+// The requested access to the control register failed.
+//
+#define HV_STATUS_CR_ACCESS_FAILED       ((HV_STATUS)0x1014)
+
+//
+// MessageId: HV_STATUS_TIMEOUT
+//
+// MessageText:
+//
+// The specified timeout expired before the operation completed.
+//
+#define HV_STATUS_TIMEOUT                ((HV_STATUS)0x1016)
+
+//
+// MessageId: HV_STATUS_MSR_INTERCEPT
+//
+// MessageText:
+//
+// The requested access to the model specific register generated an intercept.
+//
+#define HV_STATUS_MSR_INTERCEPT          ((HV_STATUS)0x1017)
+
+//
+// MessageId: HV_STATUS_CPUID_INTERCEPT
+//
+// MessageText:
+//
+// The CPUID instruction generated an intercept.
+//
+#define HV_STATUS_CPUID_INTERCEPT        ((HV_STATUS)0x1018)
+
+//
+// MessageId: HV_STATUS_REPEAT_INSTRUCTION
+//
+// MessageText:
+//
+// The current instruction should be repeated and the instruction pointer not advanced.
+//
+#define HV_STATUS_REPEAT_INSTRUCTION     ((HV_STATUS)0x1019)
+
+//
+// MessageId: HV_STATUS_PAGE_PROTECTION_VIOLATION
+//
+// MessageText:
+//
+// The current instruction should be repeated and the instruction pointer not advanced.
+//
+#define HV_STATUS_PAGE_PROTECTION_VIOLATION ((HV_STATUS)0x101A)
+
+//
+// MessageId: HV_STATUS_PAGE_TABLE_INVALID
+//
+// MessageText:
+//
+// The current instruction should be repeated and the instruction pointer not advanced.
+//
+#define HV_STATUS_PAGE_TABLE_INVALID     ((HV_STATUS)0x101B)
+
+//
+// MessageId: HV_STATUS_PAGE_NOT_PRESENT
+//
+// MessageText:
+//
+// The current instruction should be repeated and the instruction pointer not advanced.
+//
+#define HV_STATUS_PAGE_NOT_PRESENT       ((HV_STATUS)0x101C)
+
+//
+// MessageId: HV_STATUS_IO_INTERCEPT
+//
+// MessageText:
+//
+// The requested access to the I/O port generated an intercept.
+//
+#define HV_STATUS_IO_INTERCEPT           ((HV_STATUS)0x101D)
+
+//
+// MessageId: HV_STATUS_NOTHING_TO_DO
+//
+// MessageText:
+//
+// There is nothing to do.
+//
+#define HV_STATUS_NOTHING_TO_DO          ((HV_STATUS)0x101E)
+
+//
+// MessageId: HV_STATUS_THREAD_TERMINATING
+//
+// MessageText:
+//
+// The requested thread is terminating.
+//
+#define HV_STATUS_THREAD_TERMINATING     ((HV_STATUS)0x101F)
+
+//
+// MessageId: HV_STATUS_SECTION_ALREADY_CONSTRUCTED
+//
+// MessageText:
+//
+// The specified section was already constructed.
+//
+#define HV_STATUS_SECTION_ALREADY_CONSTRUCTED ((HV_STATUS)0x1020)
+
+//
+// MessageId: HV_STATUS_SECTION_NOT_ALREADY_CONSTRUCTED
+//
+// MessageText:
+//
+// The specified section was not already constructed.
+//
+#define HV_STATUS_SECTION_NOT_ALREADY_CONSTRUCTED ((HV_STATUS)0x1021)
+
+//
+// MessageId: HV_STATUS_PAGE_ALREADY_COMMITTED
+//
+// MessageText:
+//
+// The specified virtual address was already backed by physical memory.
+//
+#define HV_STATUS_PAGE_ALREADY_COMMITTED ((HV_STATUS)0x1022)
+
+//
+// MessageId: HV_STATUS_PAGE_NOT_ALREADY_COMMITTED
+//
+// MessageText:
+//
+// The specified virtual address was not already backed by physical memory.
+//
+#define HV_STATUS_PAGE_NOT_ALREADY_COMMITTED ((HV_STATUS)0x1023)
+
+//
+// MessageId: HV_STATUS_COMMITTED_PAGES_REMAIN
+//
+// MessageText:
+//
+// Committed pages remain in the section.
+//
+#define HV_STATUS_COMMITTED_PAGES_REMAIN ((HV_STATUS)0x1024)
+
+//
+// MessageId: HV_STATUS_NO_REMAINING_COMMITTED_PAGES
+//
+// MessageText:
+//
+// No additional committed pages beyond the specified page exist in the section.
+//
+#define HV_STATUS_NO_REMAINING_COMMITTED_PAGES ((HV_STATUS)0x1025)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_COMPARTMENT_VA
+//
+// MessageText:
+//
+// The VA space of the compartment is exhausted.
+//
+#define HV_STATUS_INSUFFICIENT_COMPARTMENT_VA ((HV_STATUS)0x1026)
+
+//
+// MessageId: HV_STATUS_DEREF_SPA_LIST_FULL
+//
+// MessageText:
+//
+// The SPA dereference list is full, and there are additional entries
+// to be added to it.
+//
+#define HV_STATUS_DEREF_SPA_LIST_FULL ((HV_STATUS)0x1027)
+
+//
+// MessageId: HV_STATUS_GPA_OUT_OF_RANGE
+//
+// MessageText:
+//
+// The supplied GPA is out of range.
+//
+#define HV_STATUS_GPA_OUT_OF_RANGE ((HV_STATUS)0x1027)
+
+//
+// MessageId: HV_STATUS_NONVOLATILE_XMM_STALE
+//
+// MessageText:
+//
+// The XMM register that was being accessed is stale.
+//
+#define HV_STATUS_NONVOLATILE_XMM_STALE ((HV_STATUS)0x1028)
+
+//
+// MessageId: HV_STATUS_UNSUPPORTED_PROCESSOR
+//
+// MessageText:
+//
+// The hypervisor does not support the processors in this system.
+//
+#define HV_STATUS_UNSUPPORTED_PROCESSOR ((HV_STATUS)0x1029)
+
+//
+// MessageId: HV_STATUS_INSUFFICIENT_CROM_SPACE
+//
+// MessageText:
+//
+// Insufficient space existed for copying over the CROM contents.
+//
+#define HV_STATUS_INSUFFICIENT_CROM_SPACE ((HV_STATUS)0x2000)
+
+//
+// MessageId: HV_STATUS_BAD_CROM_FORMAT
+//
+// MessageText:
+//
+// The contents of the CROM failed validation attempts.
+//
+#define HV_STATUS_BAD_CROM_FORMAT        ((HV_STATUS)0x2001)
+
+//
+// MessageId: HV_STATUS_UNSUPPORTED_CROM_FORMAT
+//
+// MessageText:
+//
+// The contents of the CROM contain contents the parser doesn't support.
+//
+#define HV_STATUS_UNSUPPORTED_CROM_FORMAT ((HV_STATUS)0x2002)
+
+//
+// MessageId: HV_STATUS_UNSUPPORTED_CONTROLLER
+//
+// MessageText:
+//
+// The register format of the OHCI controller specified for debugging is not supported.
+//
+#define HV_STATUS_UNSUPPORTED_CONTROLLER ((HV_STATUS)0x2003)
+
+//
+// MessageId: HV_STATUS_CROM_TOO_LARGE
+//
+// MessageText:
+//
+// The CROM contents were to large to copy over.
+//
+#define HV_STATUS_CROM_TOO_LARGE         ((HV_STATUS)0x2004)
+
+//
+// MessageId: HV_STATUS_CONTROLLER_IN_USE
+//
+// MessageText:
+//
+// The OHCI controller specified for debugging cannot be used as it is already in use.
+//
+#define HV_STATUS_CONTROLLER_IN_USE      ((HV_STATUS)0x2005)
+
diff --git a/drivers/staging/hv/include/HvSynicApi.h b/drivers/staging/hv/include/HvSynicApi.h
new file mode 100644
index 0000000..dd4fa0e
--- /dev/null
+++ b/drivers/staging/hv/include/HvSynicApi.h
@@ -0,0 +1,490 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+#pragma once
+
+//
+// Define the virtual APIC registers
+//
+#define HV_X64_MSR_EOI                  (0x40000070)
+#define HV_X64_MSR_ICR                  (0x40000071)
+#define HV_X64_MSR_TPR                  (0x40000072)
+#define HV_X64_MSR_APIC_ASSIST_PAGE     (0x40000073)
+
+//
+// Define version of the synthetic interrupt controller.
+//
+
+#define HV_SYNIC_VERSION        (1)
+
+
+//
+// Define synthetic interrupt controller model specific registers.
+//
+
+#define HV_X64_MSR_SCONTROL   (0x40000080)
+#define HV_X64_MSR_SVERSION   (0x40000081)
+#define HV_X64_MSR_SIEFP      (0x40000082)
+#define HV_X64_MSR_SIMP       (0x40000083)
+#define HV_X64_MSR_EOM        (0x40000084)
+#define HV_X64_MSR_SINT0      (0x40000090)
+#define HV_X64_MSR_SINT1      (0x40000091)
+#define HV_X64_MSR_SINT2      (0x40000092)
+#define HV_X64_MSR_SINT3      (0x40000093)
+#define HV_X64_MSR_SINT4      (0x40000094)
+#define HV_X64_MSR_SINT5      (0x40000095)
+#define HV_X64_MSR_SINT6      (0x40000096)
+#define HV_X64_MSR_SINT7      (0x40000097)
+#define HV_X64_MSR_SINT8      (0x40000098)
+#define HV_X64_MSR_SINT9      (0x40000099)
+#define HV_X64_MSR_SINT10     (0x4000009A)
+#define HV_X64_MSR_SINT11     (0x4000009B)
+#define HV_X64_MSR_SINT12     (0x4000009C)
+#define HV_X64_MSR_SINT13     (0x4000009D)
+#define HV_X64_MSR_SINT14     (0x4000009E)
+#define HV_X64_MSR_SINT15     (0x4000009F)
+
+//
+// Define the expected SynIC version.
+//
+#define HV_SYNIC_VERSION_1 (0x1)
+
+//
+// Define synthetic interrupt controller message constants.
+//
+
+#define HV_MESSAGE_SIZE                 (256)
+#define HV_MESSAGE_PAYLOAD_BYTE_COUNT   (240)
+#define HV_MESSAGE_PAYLOAD_QWORD_COUNT  (30)
+#define HV_ANY_VP                       (0xFFFFFFFF)
+
+//
+// Define synthetic interrupt controller flag constants.
+//
+
+#define HV_EVENT_FLAGS_COUNT        (256 * 8)
+#define HV_EVENT_FLAGS_BYTE_COUNT   (256)
+#define HV_EVENT_FLAGS_DWORD_COUNT  (256 / sizeof(UINT32))
+
+//
+// Define hypervisor message types.
+//
+typedef enum _HV_MESSAGE_TYPE
+{
+    HvMessageTypeNone = 0x00000000,
+
+    //
+    // Memory access messages.
+    //
+    HvMessageTypeUnmappedGpa = 0x80000000,
+    HvMessageTypeGpaIntercept = 0x80000001,
+
+    //
+    // Timer notification messages.
+    //
+    HvMessageTimerExpired = 0x80000010,
+
+    //
+    // Error messages.
+    //
+    HvMessageTypeInvalidVpRegisterValue = 0x80000020,
+    HvMessageTypeUnrecoverableException = 0x80000021,
+    HvMessageTypeUnsupportedFeature = 0x80000022,
+
+    //
+    // Trace buffer complete messages.
+    //
+    HvMessageTypeEventLogBufferComplete = 0x80000040,
+
+    //
+    // Platform-specific processor intercept messages.
+    //
+    HvMessageTypeX64IoPortIntercept = 0x80010000,
+    HvMessageTypeX64MsrIntercept = 0x80010001,
+    HvMessageTypeX64CpuidIntercept = 0x80010002,
+    HvMessageTypeX64ExceptionIntercept = 0x80010003,
+    HvMessageTypeX64ApicEoi = 0x80010004,
+    HvMessageTypeX64LegacyFpError = 0x80010005
+
+} HV_MESSAGE_TYPE, *PHV_MESSAGE_TYPE;
+
+//
+// Define the number of synthetic interrupt sources.
+//
+
+#define HV_SYNIC_SINT_COUNT (16)
+#define HV_SYNIC_STIMER_COUNT (4)
+
+//
+// Define the synthetic interrupt source index type.
+//
+
+typedef UINT32 HV_SYNIC_SINT_INDEX, *PHV_SYNIC_SINT_INDEX;
+
+//
+// Define partition identifier type.
+//
+
+typedef UINT64 HV_PARTITION_ID, *PHV_PARTITION_ID;
+
+//
+// Define invalid partition identifier.
+//
+#define HV_PARTITION_ID_INVALID ((HV_PARTITION_ID) 0x0)
+
+//
+// Define connection identifier type.
+//
+
+typedef union _HV_CONNECTION_ID
+{
+    UINT32 AsUINT32;
+
+    struct
+    {
+        UINT32 Id:24;
+        UINT32 Reserved:8;
+    } u;
+
+} HV_CONNECTION_ID, *PHV_CONNECTION_ID;
+
+//
+// Define port identifier type.
+//
+
+typedef union _HV_PORT_ID
+{
+    UINT32 AsUINT32;
+
+    struct
+    {
+        UINT32 Id:24;
+        UINT32 Reserved:8;
+    } u ;
+
+} HV_PORT_ID, *PHV_PORT_ID;
+
+//
+// Define port type.
+//
+
+typedef enum _HV_PORT_TYPE
+{
+    HvPortTypeMessage   = 1,
+    HvPortTypeEvent     = 2,
+    HvPortTypeMonitor   = 3
+} HV_PORT_TYPE, *PHV_PORT_TYPE;
+
+//
+// Define port information structure.
+//
+
+typedef struct _HV_PORT_INFO
+{
+    HV_PORT_TYPE PortType;
+    UINT32 Padding;
+
+    union
+    {
+        struct
+        {
+            HV_SYNIC_SINT_INDEX TargetSint;
+            HV_VP_INDEX TargetVp;
+            UINT64 RsvdZ;
+        } MessagePortInfo;
+
+        struct
+        {
+            HV_SYNIC_SINT_INDEX TargetSint;
+            HV_VP_INDEX TargetVp;
+            UINT16 BaseFlagNumber;
+            UINT16 FlagCount;
+            UINT32 RsvdZ;
+        } EventPortInfo;
+
+        struct
+        {
+            HV_GPA MonitorAddress;
+            UINT64 RsvdZ;
+        } MonitorPortInfo;
+    };
+} HV_PORT_INFO, *PHV_PORT_INFO;
+
+typedef const HV_PORT_INFO *PCHV_PORT_INFO;
+
+typedef struct _HV_CONNECTION_INFO
+{
+    HV_PORT_TYPE PortType;
+    UINT32 Padding;
+
+    union
+    {
+        struct
+        {
+            UINT64 RsvdZ;
+        } MessageConnectionInfo;
+
+        struct
+        {
+            UINT64 RsvdZ;
+        } EventConnectionInfo;
+
+        struct
+        {
+            HV_GPA MonitorAddress;
+        } MonitorConnectionInfo;
+    };
+} HV_CONNECTION_INFO, *PHV_CONNECTION_INFO;
+
+typedef const HV_CONNECTION_INFO *PCHV_CONNECTION_INFO;
+
+//
+// Define synthetic interrupt controller message flags.
+//
+
+typedef union _HV_MESSAGE_FLAGS
+{
+    UINT8 AsUINT8;
+    struct
+    {
+        UINT8 MessagePending:1;
+        UINT8 Reserved:7;
+    };
+} HV_MESSAGE_FLAGS, *PHV_MESSAGE_FLAGS;
+
+
+//
+// Define synthetic interrupt controller message header.
+//
+
+typedef struct _HV_MESSAGE_HEADER
+{
+    HV_MESSAGE_TYPE     MessageType;
+    UINT8               PayloadSize;
+    HV_MESSAGE_FLAGS    MessageFlags;
+    UINT8               Reserved[2];
+    union
+    {
+        HV_PARTITION_ID Sender;
+        HV_PORT_ID      Port;
+    };
+
+} HV_MESSAGE_HEADER, *PHV_MESSAGE_HEADER;
+
+//
+// Define timer message payload structure.
+//
+typedef struct _HV_TIMER_MESSAGE_PAYLOAD
+{
+    UINT32          TimerIndex;
+    UINT32          Reserved;
+    HV_NANO100_TIME ExpirationTime;     // When the timer expired
+    HV_NANO100_TIME DeliveryTime;       // When the message was delivered
+} HV_TIMER_MESSAGE_PAYLOAD, *PHV_TIMER_MESSAGE_PAYLOAD;
+
+//
+// Define synthetic interrupt controller message format.
+//
+
+typedef struct _HV_MESSAGE
+{
+    HV_MESSAGE_HEADER Header;
+    union
+    {
+        UINT64 Payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
+    } u ;
+} HV_MESSAGE, *PHV_MESSAGE;
+
+//
+// Define the number of message buffers associated with each port.
+//
+
+#define HV_PORT_MESSAGE_BUFFER_COUNT (16)
+
+//
+// Define the synthetic interrupt message page layout.
+//
+
+typedef struct _HV_MESSAGE_PAGE
+{
+    volatile HV_MESSAGE SintMessage[HV_SYNIC_SINT_COUNT];
+} HV_MESSAGE_PAGE, *PHV_MESSAGE_PAGE;
+
+
+//
+// Define the synthetic interrupt controller event flags format.
+//
+
+typedef union _HV_SYNIC_EVENT_FLAGS
+{
+    UINT8 Flags8[HV_EVENT_FLAGS_BYTE_COUNT];
+    UINT32 Flags32[HV_EVENT_FLAGS_DWORD_COUNT];
+} HV_SYNIC_EVENT_FLAGS, *PHV_SYNIC_EVENT_FLAGS;
+
+
+//
+// Define the synthetic interrupt flags page layout.
+//
+
+typedef struct _HV_SYNIC_EVENT_FLAGS_PAGE
+{
+    volatile HV_SYNIC_EVENT_FLAGS SintEventFlags[HV_SYNIC_SINT_COUNT];
+} HV_SYNIC_EVENT_FLAGS_PAGE, *PHV_SYNIC_EVENT_FLAGS_PAGE;
+
+
+//
+// Define SynIC control register.
+//
+typedef union _HV_SYNIC_SCONTROL
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 Enable:1;
+        UINT64 Reserved:63;
+    };
+} HV_SYNIC_SCONTROL, *PHV_SYNIC_SCONTROL;
+
+//
+// Define synthetic interrupt source.
+//
+
+typedef union _HV_SYNIC_SINT
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 Vector    :8;
+        UINT64 Reserved1 :8;
+        UINT64 Masked    :1;
+        UINT64 AutoEoi   :1;
+        UINT64 Reserved2 :46;
+    };
+} HV_SYNIC_SINT, *PHV_SYNIC_SINT;
+
+//
+// Define the format of the SIMP register
+//
+
+typedef union _HV_SYNIC_SIMP
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 SimpEnabled : 1;
+        UINT64 Preserved   : 11;
+        UINT64 BaseSimpGpa : 52;
+    };
+} HV_SYNIC_SIMP, *PHV_SYNIC_SIMP;
+
+//
+// Define the format of the SIEFP register
+//
+
+typedef union _HV_SYNIC_SIEFP
+{
+    UINT64 AsUINT64;
+    struct
+    {
+        UINT64 SiefpEnabled : 1;
+        UINT64 Preserved   : 11;
+        UINT64 BaseSiefpGpa : 52;
+    };
+} HV_SYNIC_SIEFP, *PHV_SYNIC_SIEFP;
+
+//
+// Definitions for the monitored notification facility
+//
+
+typedef union _HV_MONITOR_TRIGGER_GROUP
+{
+    UINT64 AsUINT64;
+
+    struct
+    {
+        UINT32 Pending;
+        UINT32 Armed;
+    };
+
+} HV_MONITOR_TRIGGER_GROUP, *PHV_MONITOR_TRIGGER_GROUP;
+
+typedef struct _HV_MONITOR_PARAMETER
+{
+    HV_CONNECTION_ID    ConnectionId;
+    UINT16              FlagNumber;
+    UINT16              RsvdZ;
+} HV_MONITOR_PARAMETER, *PHV_MONITOR_PARAMETER;
+
+typedef union _HV_MONITOR_TRIGGER_STATE
+{
+    UINT32 AsUINT32;
+
+    struct
+    {
+        UINT32 GroupEnable : 4;
+        UINT32 RsvdZ       : 28;
+    };
+
+} HV_MONITOR_TRIGGER_STATE, *PHV_MONITOR_TRIGGER_STATE;
+
+//
+// HV_MONITOR_PAGE Layout
+// ------------------------------------------------------
+// | 0   | TriggerState (4 bytes) | Rsvd1 (4 bytes)     |
+// | 8   | TriggerGroup[0]                              |
+// | 10  | TriggerGroup[1]                              |
+// | 18  | TriggerGroup[2]                              |
+// | 20  | TriggerGroup[3]                              |
+// | 28  | Rsvd2[0]                                     |
+// | 30  | Rsvd2[1]                                     |
+// | 38  | Rsvd2[2]                                     |
+// | 40  | NextCheckTime[0][0]    | NextCheckTime[0][1] |
+// | ...                                                |
+// | 240 | Latency[0][0..3]                             |
+// | 340 | Rsvz3[0]                                     |
+// | 440 | Parameter[0][0]                              |
+// | 448 | Parameter[0][1]                              |
+// | ...                                                |
+// | 840 | Rsvd4[0]                                     |
+// ------------------------------------------------------
+
+typedef struct _HV_MONITOR_PAGE
+{
+    HV_MONITOR_TRIGGER_STATE TriggerState;
+    UINT32                   RsvdZ1;
+
+    HV_MONITOR_TRIGGER_GROUP TriggerGroup[4];
+    UINT64                   RsvdZ2[3];
+
+    INT32                    NextCheckTime[4][32];
+
+    UINT16                   Latency[4][32];
+    UINT64                   RsvdZ3[32];
+
+    HV_MONITOR_PARAMETER     Parameter[4][32];
+
+    UINT8                    RsvdZ4[1984];
+
+} HV_MONITOR_PAGE, *PHV_MONITOR_PAGE;
+
+typedef volatile HV_MONITOR_PAGE* PVHV_MONITOR_PAGE;
diff --git a/drivers/staging/hv/include/HvTypes.h b/drivers/staging/hv/include/HvTypes.h
new file mode 100644
index 0000000..bbf9891
--- /dev/null
+++ b/drivers/staging/hv/include/HvTypes.h
@@ -0,0 +1,31 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+
+typedef UINT64 HV_GPA, *PHV_GPA;
+
+#define HV_X64_PAGE_SIZE (4096)
+#define HV_PAGE_SIZE HV_X64_PAGE_SIZE
+
diff --git a/drivers/staging/hv/include/HvVpApi.h b/drivers/staging/hv/include/HvVpApi.h
new file mode 100644
index 0000000..7e5128a
--- /dev/null
+++ b/drivers/staging/hv/include/HvVpApi.h
@@ -0,0 +1,51 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+//
+// Virtual Processor Indices
+//
+typedef UINT32 HV_VP_INDEX, *PHV_VP_INDEX;
+
+//
+// The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
+// is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
+// ==========================================================================
+//
+
+typedef enum _HV_CPUID_FUNCTION
+{
+    HvCpuIdFunctionVersionAndFeatures           = 0x00000001,
+    HvCpuIdFunctionHvVendorAndMaxFunction       = 0x40000000,
+    HvCpuIdFunctionHvInterface                  = 0x40000001,
+
+    //
+    // The remaining functions depend on the value of HvCpuIdFunctionInterface
+    //
+    HvCpuIdFunctionMsHvVersion                  = 0x40000002,
+    HvCpuIdFunctionMsHvFeatures                 = 0x40000003,
+    HvCpuIdFunctionMsHvEnlightenmentInformation = 0x40000004,
+    HvCpuIdFunctionMsHvImplementationLimits     = 0x40000005
+
+} HV_CPUID_FUNCTION, *PHV_CPUID_FUNCTION;
diff --git a/drivers/staging/hv/include/List.h b/drivers/staging/hv/include/List.h
new file mode 100644
index 0000000..117a45f
--- /dev/null
+++ b/drivers/staging/hv/include/List.h
@@ -0,0 +1,269 @@
+/*
+ *
+ * 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 _LIST_H_
+#define _LIST_H_
+
+#include "osd.h"
+/*
+ *
+ *  Doubly-linked list manipulation routines.  Implemented as macros
+ *  but logically these are procedures.
+ *
+ */
+
+typedef DLIST_ENTRY LIST_ENTRY;
+typedef DLIST_ENTRY *PLIST_ENTRY;
+
+//typedef struct LIST_ENTRY {
+//   struct LIST_ENTRY * volatile Flink;
+//   struct LIST_ENTRY * volatile Blink;
+//} LIST_ENTRY, *PLIST_ENTRY;
+
+
+
+/*
+ *  VOID
+ *  InitializeListHead(
+ *      PLIST_ENTRY ListHead
+ *      );
+ */
+#define INITIALIZE_LIST_HEAD	InitializeListHead
+
+#define InitializeListHead(ListHead) (\
+    (ListHead)->Flink = (ListHead)->Blink = (ListHead))
+
+
+/*
+ *  BOOLEAN
+ *  IsListEmpty(
+ *      PLIST_ENTRY ListHead
+ *      );
+ */
+#define IS_LIST_EMPTY			IsListEmpty
+
+#define IsListEmpty(ListHead) \
+    ((ListHead)->Flink == (ListHead))
+
+
+/*
+ *  PLIST_ENTRY
+ *  NextListEntry(
+ *      PLIST_ENTRY Entry
+ *      );
+ */
+#define	NEXT_LIST_ENTRY			NextListEntry
+
+#define NextListEntry(Entry) \
+    (Entry)->Flink
+
+
+/*
+ *  PLIST_ENTRY
+ *  PrevListEntry(
+ *      PLIST_ENTRY Entry
+ *      );
+ */
+#define	PREV_LIST_ENTRY			PrevListEntry
+
+#define PrevListEntry(Entry) \
+    (Entry)->Blink
+
+
+/*
+ *  PLIST_ENTRY
+ *  TopListEntry(
+ *      PLIST_ENTRY ListHead
+ *      );
+ */
+#define	TOP_LIST_ENTRY			TopListEntry
+
+#define TopListEntry(ListHead) \
+    (ListHead)->Flink
+
+
+
+/*
+ *  PLIST_ENTRY
+ *  RemoveHeadList(
+ *      PLIST_ENTRY ListHead
+ *      );
+ */
+
+#define	REMOVE_HEAD_LIST		RemoveHeadList
+
+#define RemoveHeadList(ListHead) \
+    (ListHead)->Flink;\
+    {RemoveEntryList((ListHead)->Flink)}
+
+
+/*
+ *  PLIST_ENTRY
+ *  RemoveTailList(
+ *      PLIST_ENTRY ListHead
+ *      );
+ */
+#define	REMOVE_TAIL_LIST		RemoveTailList
+
+#define RemoveTailList(ListHead) \
+    (ListHead)->Blink;\
+    {RemoveEntryList((ListHead)->Blink)}
+
+
+/*
+ *  VOID
+ *  RemoveEntryList(
+ *      PLIST_ENTRY Entry
+ *      );
+ */
+#define	REMOVE_ENTRY_LIST		RemoveEntryList
+
+#define RemoveEntryList(Entry) {\
+    PLIST_ENTRY _EX_Flink = (Entry)->Flink;\
+    PLIST_ENTRY _EX_Blink = (Entry)->Blink;\
+    _EX_Blink->Flink = _EX_Flink;\
+    _EX_Flink->Blink = _EX_Blink;\
+	}
+
+
+/*
+ *  VOID
+ *  AttachList(
+ *      PLIST_ENTRY ListHead,
+ *      PLIST_ENTRY ListEntry
+ *      );
+ */
+#define	ATTACH_LIST		AttachList
+
+#define AttachList(ListHead,ListEntry) {\
+    PLIST_ENTRY _EX_ListHead = (ListHead);\
+    PLIST_ENTRY _EX_Blink = (ListHead)->Blink;\
+    (ListEntry)->Blink->Flink = _EX_ListHead;\
+    _EX_Blink->Flink = (ListEntry);\
+    _EX_ListHead->Blink = (ListEntry)->Blink;\
+    (ListEntry)->Blink = _EX_Blink;\
+    }
+
+
+
+/*
+ *  VOID
+ *  InsertTailList(
+ *      PLIST_ENTRY ListHead,
+ *      PLIST_ENTRY Entry
+ *      );
+ */
+
+#define	INSERT_TAIL_LIST		InsertTailList
+
+#define InsertTailList(ListHead,Entry) {\
+    PLIST_ENTRY _EX_ListHead = (ListHead);\
+    PLIST_ENTRY _EX_Blink = (ListHead)->Blink;\
+    (Entry)->Flink = _EX_ListHead;\
+    (Entry)->Blink = _EX_Blink;\
+    _EX_Blink->Flink = (Entry);\
+    _EX_ListHead->Blink = (Entry);\
+    }
+
+
+/*
+ *  VOID
+ *  InsertHeadList(
+ *      PLIST_ENTRY ListHead,
+ *      PLIST_ENTRY Entry
+ *      );
+ */
+#define	INSERT_HEAD_LIST		InsertHeadList
+
+#define InsertHeadList(ListHead,Entry) {\
+    PLIST_ENTRY _EX_ListHead = (ListHead);\
+    PLIST_ENTRY _EX_Flink = (ListHead)->Flink;\
+    (Entry)->Flink = _EX_Flink;\
+    (Entry)->Blink = _EX_ListHead;\
+    _EX_Flink->Blink = (Entry);\
+    _EX_ListHead->Flink = (Entry);\
+    }
+
+
+/*
+ *  VOID
+ *  IterateListEntries(
+ *      PLIST_ENTRY anchor,
+ *      PLIST_ENTRY index,
+ *		PLIST_ENTRY listp
+ *      );
+ */
+
+#define	ITERATE_LIST_ENTRIES	IterateListEntries
+
+#define IterateListEntries(anchor, index, listp) \
+	(anchor) = (LIST_ENTRY *)(listp); \
+	for((index) = (anchor)->Flink; (index) != (anchor); (index) = (index)->Flink)
+
+
+
+/*
+ *  PSINGLE_LIST_ENTRY
+ *  PopEntryList(
+ *      PSINGLE_LIST_ENTRY ListHead
+ *      );
+ */
+
+#define	POP_ENTRY_LIST		PopEntryList
+
+#define PopEntryList(ListHead) \
+    (ListHead)->Next;\
+    {\
+        PSINGLE_LIST_ENTRY FirstEntry;\
+        FirstEntry = (ListHead)->Next;\
+        if (FirstEntry != NULL) {     \
+            (ListHead)->Next = FirstEntry->Next;\
+        }                             \
+    }
+
+
+
+/*
+ *  VOID
+ *  PushEntryList(
+ *      PSINGLE_LIST_ENTRY ListHead,
+ *		PSINGLE_LIST_ENTRY Entry
+ *      );
+ */
+
+#define	PUSH_ENTRY_LIST			PushEntryList
+
+#define PushEntryList(ListHead,Entry) \
+    (Entry)->Next = (ListHead)->Next; \
+    (ListHead)->Next = (Entry)
+
+#ifndef CONTAINING_RECORD
+#define CONTAINING_RECORD(address, type, field) ((type *)( \
+                                                  (PCHAR)(address) - \
+                                                  (PCHAR)(&((type *)0)->field)))
+#endif /* CONTAINING_RECORD */
+
+#endif /* _LIST_H_ */
+
+/* EOF */
diff --git a/drivers/staging/hv/include/VmbusChannelInterface.h b/drivers/staging/hv/include/VmbusChannelInterface.h
new file mode 100644
index 0000000..dcafbe6
--- /dev/null
+++ b/drivers/staging/hv/include/VmbusChannelInterface.h
@@ -0,0 +1,131 @@
+/*
+ *
+ * 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>
+ *
+ */
+
+
+#pragma once
+// allow nameless unions
+//#pragma warning(disable : 4201)
+
+//
+// A revision number of vmbus that is used for ensuring both ends on a
+// partition are using compatible versions.
+//
+#define VMBUS_REVISION_NUMBER       13
+
+//
+// Make maximum size of pipe payload of 16K
+//
+#define MAX_PIPE_DATA_PAYLOAD 		(sizeof(BYTE) * 16384)
+
+//
+// Define PipeMode values.
+//
+#define VMBUS_PIPE_TYPE_BYTE                    0x00000000
+#define VMBUS_PIPE_TYPE_MESSAGE                 0x00000004
+
+//
+// The size of the user defined data buffer for non-pipe offers.
+//
+#define MAX_USER_DEFINED_BYTES                  120
+
+//
+// The size of the user defined data buffer for pipe offers.
+//
+#define MAX_PIPE_USER_DEFINED_BYTES             116
+
+
+//
+// At the center of the Channel Management library is
+// the Channel Offer. This struct contains the
+// fundamental information about an offer.
+//
+#pragma pack(push,1)
+
+typedef struct
+{
+
+    GUID    InterfaceType;
+    GUID    InterfaceInstance;
+    UINT64  InterruptLatencyIn100nsUnits;
+    UINT32  InterfaceRevision;
+    UINT32  ServerContextAreaSize;  // in bytes
+    UINT16  ChannelFlags;
+    UINT16  MmioMegabytes;          // in bytes * 1024 * 1024
+
+    union
+    {
+        //
+        // Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes.
+        //
+        struct
+        {
+            UCHAR   UserDefined[MAX_USER_DEFINED_BYTES];
+        } Standard;
+
+        //
+        // Pipes: The following sructure is an integrated pipe protocol, which
+        //        is implemented on top of standard user-defined data. Pipe clients
+        //        have MAX_PIPE_USER_DEFINED_BYTES left for their own use.
+        //
+        struct
+        {
+            UINT32  PipeMode;
+            UCHAR   UserDefined[MAX_PIPE_USER_DEFINED_BYTES];
+        } Pipe;
+    } u;
+	UINT32	Padding;
+} VMBUS_CHANNEL_OFFER, *PVMBUS_CHANNEL_OFFER;
+#pragma pack(pop)
+
+
+//
+// Verify the MAX_PIPE_USER_DEFINED_BYTES value.
+//
+//C_ASSERT(MAX_PIPE_USER_DEFINED_BYTES ==
+//         MAX_USER_DEFINED_BYTES -
+//         (FIELD_OFFSET(VMBUS_CHANNEL_OFFER, u.Pipe.UserDefined) -
+//          FIELD_OFFSET(VMBUS_CHANNEL_OFFER, u.Standard.UserDefined)));
+//
+
+typedef UINT32 GPADL_HANDLE;
+
+//
+// Server Flags
+//
+
+#define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE           1
+#define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES       2
+#define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS               4
+#define VMBUS_CHANNEL_NAMED_PIPE_MODE                   0x10
+#define VMBUS_CHANNEL_LOOPBACK_OFFER                   0x100
+#define VMBUS_CHANNEL_PARENT_OFFER                     0x200
+#define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION   0x400
+
+//
+// TEMPTEMP -- move this next define to devioctl.h some day
+//
+
+#ifndef FILE_DEVICE_VMBUS
+#define FILE_DEVICE_VMBUS   0x0000003E
+#endif
+
diff --git a/drivers/staging/hv/include/VmbusPacketFormat.h b/drivers/staging/hv/include/VmbusPacketFormat.h
new file mode 100644
index 0000000..bb0c927
--- /dev/null
+++ b/drivers/staging/hv/include/VmbusPacketFormat.h
@@ -0,0 +1,322 @@
+/*
+ *
+ * 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 Softw