3 .\" Copyright (c) 2012 Microsoft Corp.
4 .\" All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
10 .\" notice, this list of conditions and the following disclaimer.
11 .\" 2. Redistributions in binary form must reproduce the above copyright
12 .\" notice, this list of conditions and the following disclaimer in the
13 .\" documentation and/or other materials provided with the distribution.
15 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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17 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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22 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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27 .Dd September 10, 2013
32 .Nd Hyper-V Utilities Driver
34 To compile this driver into the kernel, place the following lines in
35 the system kernel configuration file:
36 .Bd -ragged -offset indent
42 driver provides time keeping, shutdown and heartbeat
45 guest partitions running on Hyper-V.
46 Hyper-V is a hypervisor-based virtualization technology from Microsoft.
49 driver is one of the core drivers required to be present in guest
50 partitions running on Hyper-V.
51 This driver provides the following
52 functionalities to guest partitions:
54 (a) Time Keeping: The clock inside the guest partition will remain accurate by
55 synchronizing to the clock on the virtualization server via Timesync service,
56 and with the help of the pluggable time source device.
58 (b) Integrated shutdown: Guest partitions running
61 Hyper-V Manager console by using the
65 (c) Heartbeat: This feature allows the virtualization server to detect whether
66 the guest partition is running and responsive.
68 .Xr hv_ata_pci_disengage 4 ,
77 The driver was developed through a joint effort between Citrix Incorporated,
78 Microsoft Corporation, and Network Appliance Incorporated.
85 .An Microsoft BSD Integration Services Team Aq Mt bsdic@microsoft.com .