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Chapter 3. KVM Guest Virtual Machine Compatibility
To verify whether your processor supports the virtualization extensions and for information on enabling the virtualization extensions if they are disabled, refer to the Red Hat Enterprise Linux Virtualization Administration Guide.
3.1. Red Hat Enterprise Linux 6 Support Limits
Red Hat Enterprise Linux 6 servers have certain support limits.
The following URLs explain the processor and memory amount limitations for Red Hat Enterprise Linux:
- For hypervisors: http://www.redhat.com/resourcelibrary/articles/virtualization-limits-rhel-hypervisors
Note
Red Hat Enterprise Linux 6.5 now supports 4TiB of memory per KVM guest.
The following URL is a complete reference showing supported operating systems and host and guest combinations:

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