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Chapter 20. Virtualization
virt-v2v converts virtual machine CPU topology
With this update, the
virt-v2v utility preserves the CPU topology of the converted virtual machines (VMs). This ensures that the VM CPU works the same way after the conversion as it did before the conversion, which avoids potential runtime problems. (BZ#1541908)
virt-v2v can import virtual machines directly to RHV
The
virt-v2v utility is now able to output a converted virtual machine (VM) directly to a Red Hat Virtualization (RHV) client. As a result, importing VMs converted by virt-v2v using the Red Hat Virtualization Manager (RHVM) is now easier, faster, and more reliable.
Note that this feature requires RHV version 4.2 or later to work properly. (BZ#1557273)
The i6300esb watchdog is now supported by libvirt
With this update, the
libvirt API supports the i6300esb watchdog device. As a result, KVM virtual machines can use this device to automatically trigger a specified action, such as saving a core dump of the guest if the guest OS becomes unresponsive or terminates unexpectedly. (BZ#1447169)
Paravirtualized clock added to Red Hat Enterprise Linux VMs
With this update, the paravirtualized
sched_clock() function has been integrated in the Red Hat Enterprise Linux kernel. This improves the performance of Red Hat Enterprise Linux virtual machines (VMs) running on VMWare hypervisors.
Note that the function is enabled by default. To disable it, add the
no-vmw-sched-clock option to the kernel command line. (BZ#1507027)
VNC console is supported on IBM Z
This update enables the
virtio-gpu kernel configuration in guests running on the IBM Z architecture. As a result, KVM guests on an IBM Z host are now able to use the VNC console to display their graphical output. (BZ#1570090)
QEMU Guest Agent diagnostics enhanced
To maintain qemu-guest-agents compatibility with the latest version of VDSM, a number of features have been backported from the most recent upstream version.
These include the addition of
qemu-get-host-name, qemu-get-users, qemu-get-osinfo, and qemu-get-timezone commands, which improve the diagnostic capabilities of QEMU Guest Agent. (BZ#1569013)
