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KVM Gets Better Windows Guest Support With Linux 3.15

Virtualization

Published on 02 April 2014 11:28 AM EDT
Written by Michael Larabel in Virtualization
3 Comments

The Kernel-based Virtual Machine has seen some semi-exciting enhancements with the in-development Linux 3.15 kernel.

Key changes to Linux 3.15 with regard to KVM are:

- The PowerPC KVM code now supports transactional memory within guests.

- MIPS KVM improvements, but that is expected to be more exciting for the Linux 3.16 kernel as QEMU is soon gaining MIPS KVM support.

- KVM on x86 has optimizations for debug registers since they are triggered when running some Windows games. There's also other Windows guests enhancements.

- KVM x86 also has a fix/workaround for Apple Mac OS X guests.

- Intel Broadwell CPU instruction set extensions are now exposed as well as Intel MPX.

- Asynchronous page faults for KVM s390 along with IRQ improvements that speed-up s390 VirtIO devices.

More details can be found via the Linux 3.15 pull request by Paolo Bonzini.

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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