Installation guide

Chapter 4. Hyper-V restrictions and support
Certification of guests running under the Microsoft Hyper-V server is conducted by Microsoft. Red Hat
Enterprise Linux 5 is fully certified to run under the Microsoft Hyper-V server.
4.1. Hyper-V drivers
For enhanced performance, Red Hat Enterprise Linux 5 provides support for Hyper-V para-virtualized
drivers. These drivers (and their kernel module name) are described in the following list:
Hyp er- V vmbu s d river ( hv_vmb u s) - Provides the infrastructure for other Hyper-V drivers to
communicate with the hypervisor.
Ut ilit y driver ( h v_ut ils) - Provides Hyper-V integration services such as shutdown, time
synchronization, heartbeat and Key-Value Pair Exchange.
Net wo rk d river (h v_net vsc) - Provides network performance improvements.
St o rag e driver ( h v_st o rvsc) - Increases performance when accessing storage (ID E and SCSI)
devices.
Mo u se d river ( h id _h yp erv) - Improves user experience by allowing mouse focus changes for a
virtualized guest.
Clo ckso u rce driver - This driver provides a stable clock source for Red Hat Enterprise Linux
5.11 running within the Hyper-V platform.
Note
There is no Clocksource module, instead it is built directly into the kernel.
The Hyper-V kernel modules for Red Hat Enterprise Linux 5.11 are shown in the following output:
# /sbin/lsmod | grep hv
hv_netvsc 57153 0
hv_utils 41841 0
hv_storvsc 47681 2
hv_vmbus 66105 4 hv_netvsc,hid_hyperv,hv_utils,hv_storvsc
For further information on configuring network devices, storage controllers, and for details on Linux
Integration Services when running Red Hat Enterprise Linux 5 under Hyper-V, see the following
document: http://technet.microsoft.com/en-us/library/dn531030.aspx
Red Hat En t erp rise Lin ux 5 Virt ualizat ion Guid e
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