QEMU is the software that creates virtual hardware which guest operating systems run on top of. All (well, almost all — see note below[*]) the hardware that a guest OS has access to is actually written to some specifications in software — i.e. no physical hardware is involved. For the QEMU/KVM hypervisor, most of these devices are written in the QEMU source repository. A few devices are part of the KVM code in the Linux kernel. QEMU also handles a lot of host-specific stuff, like storage and networking for the virtual machines.
[* Exception: physical hardware devices assigned to guests.]
Many contributors to the QEMU and KVM projects meet at the annual KVM Forum conference to talk about new features, new developments, what changed since the last conference, etc.
The QEMU project released version 2.4 just a week before the 2015 edition of KVM Forum. I thought that was a good opportunity to gather a few developers and maintainers, and get them on video where we can see them speak about the improvements they made in the 2.4 release, and what we can expect in the 2.5 release.
In its 8th edition, the KVM Forum is moving back to North America this year, co-located with LinuxCon NA in Seattle. It starts with a KVM + Xen hackathon and the (invite-only) QEMU Summit on the 18th August, followed by talks and BOFs on the 19th, 20th, and the 21st. The schedule is here. To add all talks to your calendar, use this ics. The KVM Forum wiki page will have information on live streaming of talks, videos, slides, etc.
If you’re going to be around, please come up and say hi!
The CFP for FUDCon Pune 2015 is now closed. We have had an overwhelming response: 141 talks/workshops submitted. This is more than twice the number of sessions we received for the 2011 edition. Talk submissions were pouring in till the last minute when we flipped the switch for the CFP page.
However, there’s a twist in the tale, so people who couldn’t get their CFP in aren’t left out.
That articles talks about the improvements in the recent RHEL 7.1 release. In upstream terms, all the changes written about have landed in kernel 3.17; so Fedora 21 out-of-the-box, and Fedora 20 after updates, have benefited from the additions.
All the benefits listed in the article apply to all Linux guest VMs running under KVM if they have the virtio-rng device enabled, and run kernel 3.17+ in the guest.
We had a F21 release party at the MIT COE, the venue for FUDCon Pune. We were expecting about 20 people to turn up, we did not want to make this a big event. The students from MIT who attended were enthusiastic and already use Linux for their coursework. They use Ubuntu, and they were curious about what the differences in various distros are, and what to expect at FUDCon.
Pravin has written his experiences here, which have more details.