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<H1>[Mageia-dev] qemu new upstream release (1.0-rc1) and should we move from qemu-kvm to qemu?</H1>
<B>Anne Nicolas</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20qemu%20new%20upstream%20release%20%281.0-rc1%29%20and%20should%20we%0A%20move%20from%20qemu-kvm%20to%20qemu%3F&In-Reply-To=%3C4EBEA55F.9030204%40gmail.com%3E"
TITLE="[Mageia-dev] qemu new upstream release (1.0-rc1) and should we move from qemu-kvm to qemu?">ennael1 at gmail.com
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<I>Sat Nov 12 17:57:03 CET 2011</I>
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<PRE>Le 12/11/2011 16:44, Kamil Rytarowski a écrit :
><i> Let me paste from the Arch Linux wiki documentation:
</I>><i>
</I>><i> --
</I>><i> Difference between qemu and qemu-kvm
</I>><i>
</I>><i> Depending on your needs, you can choose either to install upstream qemu
</I>><i> or qemu-kvm from the official repositories.
</I>><i>
</I>><i> Upstream QEMU is a pure emulator, with no hardware acceleration. qemu
</I>><i> versions < 0.15.0 do have initial KVM support when QEMU is started with
</I>><i> the -enable-kvm parameter, but this implementation is still buggy and
</I>><i> nowhere as complete as in qemu-kvm, as many functions still do not work.
</I>><i> Starting with qemu version 0.15.0, the qemu-kvm tree has been fully
</I>><i> integrated with the qemu tree, and there should not be any difference
</I>><i> between qemu -enable-kvm and qemu-kvm. See the [QEMU changelog] for more
</I>><i> details.
</I>><i>
</I>><i> Upstream QEMU is capable of emulating many different platforms (arm,
</I>><i> i386, m68k, mips, ppc, sparc, x86_64, etc). On the other hand, you have
</I>><i> qemu-kvm, which is qemu (i386 and x86_64 architecture support only) with
</I>><i> KVM (kernel-based virtual machine) additions, allowing you to run
</I>><i> virtual machines at close to native speed. qemu-kvm is the version you
</I>><i> want if you have a CPU that supports hardware virtualization and you
</I>><i> only need to run virtual machines for the i386 and x86_64 architectures
</I>><i> (Linux, Windows, BSD, etc).
</I>><i>
</I>><i> Not all processors support KVM. You will need an x86-based machine
</I>><i> running a recent ( >= 2.6.22 ) Linux kernel on an Intel processor with
</I>><i> VT-x (virtualization technology) extensions or an AMD processor with SVM
</I>><i> (Secure Virtual Machine) extensions (also called AMD-V). Xen has a
</I>><i> complete list of compatible processors. For Intel processors, see also
</I>><i> the Intel® Virtualization Technology List.
</I>><i>
</I>><i> <A HREF="https://wiki.archlinux.org/index.php/QEMU#Difference_between_qemu_and_qemu-kvm">https://wiki.archlinux.org/index.php/QEMU#Difference_between_qemu_and_qemu-kvm</A>
</I>><i>
</I>><i> --
</I>><i>
</I>><i>
</I>><i> And now from the qemu changelog
</I>><i> ~~
</I>><i> KVM
</I>><i> Common
</I>><i>
</I>><i> Countless fixes ported over from qemu-kvm, core is now shared with
</I>><i> that tree, i.e. has the same quality
</I>><i> Pimped up threading model, now fully synchronized with qemu-kvm tree
</I>><i> Removed dependency on external kernel headers, all supported KVM
</I>><i> features are now built into the binary
</I>><i>
</I>><i> <A HREF="http://wiki.qemu.org/ChangeLog/0.15#KVM">http://wiki.qemu.org/ChangeLog/0.15#KVM</A>
</I>><i> ~~
</I>><i>
</I>><i> What do you think? Can we move?
</I>><i>
</I>><i> There is also one important patch missed in Mageia -
</I>><i> <A HREF="http://lists.gnu.org/archive/html/qemu-devel/2011-11/msg00787.html">http://lists.gnu.org/archive/html/qemu-devel/2011-11/msg00787.html</A> it's
</I>><i> dependency for the GNS3 simulator. OpenSUSE already includes it
</I>><i> <A HREF="https://build.opensuse.org/package/files?package=qemu&project=openSUSE%3ATools">https://build.opensuse.org/package/files?package=qemu&project=openSUSE%3ATools</A>
</I>><i>
</I>><i>
</I>><i> If nobody is against I will do it and contact the maintainer (misc).
</I>
You should also contact pterjan wo was maintainer for a long time
--
Anne
<A HREF="http://mageia.org">http://mageia.org</A>
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