RedHat Support for Hyper-V

Microsoft announced that they have completed a mutual support program with RedHat.

Now we have support for both enterprise Linux platforms on Hyper-V; SUSE being the other one. And both can be monitored from hardware to service using Operations Manager 2007 R2.

Details:
- Red Hat Enterprise Linux 5.2, 5.3, 5.4 have passed cert tests when running on Windows Server 2008 Hyper-V, Microsoft Hyper-V Server 2008, Windows Server 2008 R2 Hyper-V, Microsoft Hyper-V Server 2008 R2. See more at RedHat's certified hardware site.

- Windows Server 2003/ Windows Server 2008 / Windows Server 2008 R2 are validated to run on Red Hat Enterprise Linux 5.4, using their KVM-based hypervisor. See more at Microsoft Server Virtualization Validation Program site.

Hyper-V Integration Component drivers for Linux as Open Source

What!!!
This is the first time that Microsoft has contributed code to the Linux kernel.
The Hyper-V Linux device drivers will be licensed under GPLv2. That's 20,000 lines of code that provide the synthetic device drivers and VM bus implementation needed for a Linux guest OS to run "enlightened" on either Windows Server 2008 Hyper-V or Microsoft Hyper-V Server 2008.

Read more here and here.