Red Hat Enterprise Linux virtualization support

A detailed matrix explaining virtualization support in Red Hat® Enterprise Linux®.

Please note that running in a virtualized environment may be subject to the third-party operating systems license agreement.

Legend

PV

Paravirtualized (Xen): Guest kernel optimized for virtualization.

FV

Fully virtualized (Xen or KVM): Unmodified guest kernel; requires virtualization support in hardware.

Optimized

Supported. PV or optimized PV drivers provided; fully certified stack (for example, Microsoft SVVP).

Supported

Supported but no or limited optimized PV drivers provided; limited certification (for Windows Server, for example Microsoft WHQL but no SVVP).

Unsupported

Not supported and may not work.

N/A

Not a valid combination.

Tech preview

Technically possible, but not yet supported.


Virtualization platform, kernel, and processor architecture

Guest operating system

RHEL 6 64-bit x86_64 (KVM), RHEV-H 6

RHEL 5 64-bit x86-64 (KVM)1, RHEV-H 5

RHEL 5 64-bit x86-64 (Xen)

RHEL 5 32-bit x86-32 (PAE, Xen)

RHEL 5 IA64

Supported Red Hat Enterprise Linux combinations

Red Hat Enterprise Linux 3 x86-64 FV

Optimized2

Optimized2

Optimized

N/A

N/A

Red Hat Enterprise Linux 3 x86-32 FV

Optimized2

Optimized2

Optimized2

Optimized2

N/A

Red Hat Enterprise Linux 3 IA64 FV

N/A

N/A

N/A

N/A

N/A

Red Hat Enterprise Linux 4 x86-64 PV

N/A

N/A

Optimized

N/A

N/A

Red Hat Enterprise Linux 4 x86-64 FV

Optimized2

Optimized2

Optimized2

N/A

N/A

Red Hat Enterprise Linux 4 x86-32 PV

N/A

N/A

Optimized4

Optimized

N/A

Red Hat Enterprise Linux 4 x86-32 FV

Optimized2

Optimized2

Optimized3

Optimized3

N/A

Red Hat Enterprise Linux 4 IA64 PV

N/A

N/A

N/A

N/A

Optimized

Red Hat Enterprise Linux 4 IA64 FV

N/A

N/A

N/A

N/A

Supported

Red Hat Enterprise Linux 5 x86-64 PV

N/A

N/A

Optimized

N/A

N/A

Red Hat Enterprise Linux 5 x86-64 FV

Optimized2

Optimized2

Optimized3

N/A

N/A

Red Hat Enterprise Linux 5 x86-32 PV

N/A

N/A

Optimized4

Optimized

N/A

Red Hat Enterprise Linux 5 x86-32 FV

Optimized2

Optimized2

Optimized3

Optimized3

N/A

Red Hat Enterprise Linux 5 IA64 PV

N/A

N/A

N/A

N/A

Optimized

Red Hat Enterprise Linux 5 IA64 FV

N/A

N/A

N/A

N/A

Supported

Red Hat Enterprise Linux 6 x86-64 PV

N/A

N/A

Optimized2

N/A

N/A

Red Hat Enterprise Linux 6 x86-64 FV

Optimized2

Optimized2

Optimized2

N/A

N/A

Red Hat Enterprise Linux 6 x86-32 PV

N/A

N/A

Optimized2

Optimized2

N/A

Red Hat Enterprise Linux 6 x86-32 FV

Optimized2

Optimized2

Optimized2

Optimized2

N/A

Supported third-party guest operating systems

Windows Server 2000 32-bit x86

Unsupported

Unsupported

Supported

Supported

N/A

Windows Server 2000 IA64

N/A

N/A

N/A

N/A

Supported

Windows Server 2003 32-bit x86

Optimized5

Optimized5

Supported7

Supported7

N/A

Windows Server 2003 64-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A

Windows Server 2003 IA64

N/A

N/A

N/A

N/A

Supported

Windows Server 2003 R2 32-bit x86

Optimized5

Optimized5

Supported7

Supported7

N/A

Windows Server 2003 R2 64-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A

Windows Server 2003 R2 IA64

N/A

N/A

N/A

N/A

Supported

Windows Server 2008 32-bit x86

Optimized5

Optimized5

Supported7

Supported7

N/A

Windows Server 2008 64-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A

Windows Server 2008 IA64

N/A

N/A

N/A

N/A

Supported

Windows Server 2008 R2 64-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A

Windows Server 2008 R2 IA64

N/A

N/A

N/A

N/A

Supported

Windows XP 32-bit x86

Optimized5

Optimized5

Supported

Supported

N/A

Windows XP 64-bit x86

Unsupported

Unsupported

Unsupported

N/A

N/A

Windows Vista 32-bit x86

Supported

Supported

Supported

Supported

N/A

Windows Vista 64-bit x86

Supported

Supported

Supported

N/A

N/A

Windows 7 32-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A

Windows 7 64-bit x86

Optimized5

Optimized5

Unsupported

N/A

N/A



Certified third-party hypervisors and hardware partitioning technologies

Generic virtualization solutions

In addition to the integrated Red Hat virtualization technology, Red Hat supports Red Hat Enterprise Linux as a guest on VMWare and Hyper-V as generic virtualization platforms. This means that Red Hat Enterprise Linux on these virtualization platforms is certified and supported independent of the underlying physical hardware (aside from any hardware pass-through). Please note that Red Hat supports the guest operating system. Direct support for the third-party virtualization platform will come from the respective vendor. Please refer to the hardware certification catalog for details on the verified products and versions.

Hardware partitioning

Red Hat supports Red Hat Enterprise Linux on hardware partitioning and virtualization solutions such as IBM System z, IBM POWER, Fujitsu PRIMEQUEST, or Hitachi Virtage hardware partitioning. These are certified as part of the physical hardware, but not supported generically (for example, on non-certified hardware). Please refer to the hardware certification list for information on certified hardware.

Red Hat on the cloud

Red Hat supports Red Hat Enterprise Linux as a guest on the cloud. For private, in-house cloud-type deployments, this support matrix applies. Please refer to the Red Hat Cloud Partner Program for more information on supported public cloud providers.

Other third-party guest operating systems

A customer may run non-Red Hat-branded guest operating systems that are not certified and not actively supported by Red Hat on Red Hat virtualization products without invalidating Red Hat's support for the Red Hat virtualization platform. Red Hat will support the virtualization product itself, but for any non-Red Hat-branded guest operating system—including any paravirtualized drivers—the customer will need to get support from the respective vendor of that product.

The third-party vendor providing and supporting the particular guest instance may escalate issues through regular back-end support interfaces if such a relationship with Red Hat exists. At Red Hat's discretion, the third-party guest operating system vendor may be required to reproduce failures on a fully supported configuration. Red Hat, in its sole discretion, may from time to time take commercially reasonable steps to address issues associated with uncertified third-party guest operating systems.

KVM virtualization was introduced in Red Hat Enterprise Linux 5.4 for x86-64 hosts.

  1. For best performance of Red Hat Enterprise Linux guests on Red Hat Enterprise Linux hosts with KVM, paravirtualized I/O drivers (virtio-drivers) are required to be installed in the guest. They were introduced in Red Hat Enterprise Linux 5 with 5.3, in Red Hat Enterprise Linux 4 with 4.8, and in Red Hat Enterprise Linux 3 with Errata Advisory RHEA-2009:1425-1 (please refer to http://kbase.redhat.com/faq/docs/DOC-25441 for details about how to use it). Starting with Red Hat Enterprise Linux 5.4 and Red Hat Enterprise Linux 6, the pv-drivers are integrated into the kernel package. Please also consider the documentation section on timing issues.

  2. For the best performance of fully virtualized Red Hat Enterprise Linux guests on Red Hat Enterprise Linux 5 hosts with Xen, paravirtualized I/O drivers (xenpv) are required to be installed in the guest. These drivers are available in Red Hat Enterprise Linux 5 with 5.3, for Red Hat Enterprise Linux 4, and for Red Hat Enterprise Linux 3 with Red Hat Errata Advisory RHEA-2008-0274 and later updates.

  3. Support for paravirtualized x86-32 guests on an x86-64 host environment is fully supported with Red Hat Enterprise Linux 5.4 or later.

  4. For best performance, the paravirtualized I/O drivers (virtio-win) are required to be installed in the Windows guests. The drivers are made available as images in the Supplementary channel of the Red Hat Enterprise Linux 5 host OS (please refer to http://kbase.redhat.com/faq/docs/DOC-24866 for details). Please see the Microsoft SVVP site for certification details.

  5. As of Red Hat Enterprise Linux 5.5.

  6. Paravirtualized drivers for Windows Server on Red Hat Enterprise Linux 5 with Xen (xenpv-win) are made available but not certified.