Chapter 26. Virtualization

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Nested virtualization

As a Technology Preview, Red Hat Enterprise Linux 7.2 offers nested virtualization. This feature enables KVM to launch guests that can act as hypervisors and create their own guests.

The virt-p2v tool

Red Hat Enterprise Linux 7.2 offers the virt-p2v tool as a Technology Preview. virt-p2v (physical to virtual) is a CD-ROM, ISO or PXE image that the user can boot on a physical machine, and that creates a KVM virtual machine with disk contents identical to the physical machine.

USB 3.0 support for KVM guests

USB 3.0 host adapter (xHCI) emulation for KVM guests remains a Technology Preview in Red Hat Enterprise Linux 7.2.

VirtIO-1 support

Virtio drivers have been updated to Kernel 4.1 to provide VirtIO 1.0 Device Support.

Open Virtual Machine Firmware

The Open Virtual Machine Firmware (OVMF) is available as a Technology Preview in Red Hat Enterprise Linux 7. OVMF is a UEFI secure boot environment for AMD64 and Intel 64 guests. However, OVMF is not bootable with virtualization components available in RHEL 7. Note that OVMF is fully supported in RHEL 8.
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