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Chapter 3. KVM restrictions and support

Important

KVM only supports AMD64 and Intel 64 versions of Red Hat Enterprise Linux. Other architectures are not supported at this time.
The Red Hat Enterprise Linux kvm package is limited to 64 processor cores. This limit applies except on certain platforms where the limit is 96 processor cores.
Supported fully virtualized guests
Operating systemSupport level
Red Hat Enterprise Linux 3 x86Optimized with para-virtualized drivers
Red Hat Enterprise Linux 4 x86Optimized with para-virtualized drivers
Red Hat Enterprise Linux 4 AMD 64 and Intel 64Optimized with para-virtualized drivers
Red Hat Enterprise Linux 5 x86Optimized with para-virtualized drivers
Red Hat Enterprise Linux 5 AMD 64 and Intel 64Optimized with para-virtualized drivers
Windows Server 2003 R2 32-BitOptimized with para-virtualized drivers
Windows Server 2003 R2 64-BitOptimized with para-virtualized drivers
Windows Server 2003 Service Pack 2 32-BitOptimized with para-virtualized drivers
Windows Server 2003 Service Pack 2 64-BitOptimized with para-virtualized drivers
Windows XP 32-BitOptimized with para-virtualized drivers (network driver only)
Windows Vista 32-BitSupported
Windows Vista 64-BitSupported
Windows Server 2008 32-BitOptimized with para-virtualized drivers
Windows Server 2008 64-BitSupported