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KVM Gets Improved For S390, POWER & MIPS

Virtualization

Published on 04 June 2014 09:53 AM EDT
Written by Michael Larabel in Virtualization
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The KVM virtualization update for Linux 3.16 brings improvements mostly for less common CPU architectures. With the Linux 3.17 kernel should come more interesting work for x86 fans but KVM on IA64 is likely to get the boot.

Paolo Bonzini sent in the Kernel-based Virtual Machine changes this morning for the Linux 3.16 kernel. This pull request brings a lot of changes for IBM's S390 architecture with regard to optimizations, support for migration, GDB support, and other improvements. Within the ARM space the only noteworthy change was support for the PSCI 0.2 hyper-call interface.

KVM with Linux 3.16 has initial support for POWER8 and little-endian host support. Also improved in the POWER space is support for running U-Boot on embedded POWER targets.

Another architecture getting boosted by Linux KVM in 3.16 is MIPS with completing its user-space interface and improving the handling of virtualized timer hardware.

Within the x86 space, Bonzini says a larger set of changes is scheduled for 3.17, but there are some bug-fixes and support for running nestedfully-virtualized Xen clients plus some optimizations.

An architecture not receiving any love with the KVM pull for Linux 3.16 is IA64 and apparently the KVM IA64 support is expected to be removed in Linux 3.17 over lack of activity.

The KVM feature pull request for the Linux 3.16 kernel can be found on the kernel mailing list.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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