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hv_utils(4) [freebsd man page]

HYPER-V(4)						   BSD Kernel Interfaces Manual 						HYPER-V(4)

NAME
hv_utils -- Hyper-V Utilities Driver SYNOPSIS
To compile this driver into the kernel, place the following lines in the system kernel configuration file: device hyperv DESCRIPTION
The hv_utils driver provides time keeping, shutdown and heartbeat functionality for FreeBSD guest partitions running on Hyper-V. Hyper-V is a hypervisor-based virtualization technology from Microsoft. The hv_utils driver is one of the core drivers required to be present in guest partitions running on Hyper-V. This driver provides the following functionalities to guest partitions: (a) Time Keeping: The clock inside the guest partition will remain accurate by synchronizing to the clock on the virtualization server via Timesync service, and with the help of the pluggable time source device. (b) Integrated shutdown: Guest partitions running FreeBSD can be shut down from Hyper-V Manager console by using the "Shut down" command. (c) Heartbeat: This feature allows the virtualization server to detect whether the guest partition is running and responsive. SEE ALSO
hv_ata_pci_disengage(4), hv_netvsc(4), hv_storvsc(4), hv_vmbus(4) HISTORY
Support for hv_utils first appeared in FreeBSD 10.0. The driver was developed through a joint effort between Citrix Incorporated, Microsoft Corporation, and Network Appliance Incorporated. AUTHORS
FreeBSD support for hv_utils was first added by Microsoft BSD Integration Services Team <bsdic@microsoft.com>. BSD
September 10, 2013 BSD

Check Out this Related Man Page

HYPER-V(4)						   BSD Kernel Interfaces Manual 						HYPER-V(4)

NAME
hv_netvsc -- Hyper-V Network Virtual Service Consumer SYNOPSIS
To compile this driver into the kernel, place the following lines in the system kernel configuration file: device hyperv DESCRIPTION
The hv_netvsc driver implements the virtual network device for FreeBSD guest partitions running on Hyper-V. FreeBSD guest partitions running on Hyper-V do not have direct access to network devices attached to the Hyper-V server. Although a FreeBSD guest can access network devices using Hyper-V's full emulation mode, the performance in this mode tends to be unsatisfactory. To counter the above issues, the hv_netvsc driver implements a network Virtual Service Consumer (VSC) that relays network requests from the guest partition to the network Virtual Service Provider (VSP) hosted in the root partition using the high performance data exchange infra- structure provided by hv_vmbus(4) driver. The VSP in the root partition then forwards the network related requests to the physical network card. SEE ALSO
hv_ata_pci_disengage(4), hv_storvsc(4), hv_utils(4), hv_vmbus(4) HISTORY
Support for hv_netvsc first appeared in FreeBSD 10.0. The driver was developed through a joint effort between Citrix Incorporated, Microsoft Corporation, and Network Appliance Incorporated. AUTHORS
FreeBSD support for hv_netvsc was first added by Microsoft BSD Integration Services Team <bsdic@microsoft.com>. BSD
September 10, 2013 BSD
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