André Luís Lopes wrote:
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Hello,
Sorry if it's not the correct place to ask for it, but given this is
the bug which asked for --enable-kvm to be enabled in QEMU and the
maintainer said he didn't thought it was a good idea until the KVM
support in QEMU was usable, I wondered if we unstable users should now
start to replace KVM (the Debian package) with QEMU (the Debian package).
As of now, neither qemu nor kvm nor qemu-kvm (stable version of the latter)
do everything. qemu does not contain enough bits from kvm to be useable
as a replacement for kvm. Kvm contains enough regressions compared with
qemu to replace qemu.
So the two co-exists for now in Debian. When things change upstream and
change enough that either kvm works as qemu (on other architectures, without
kvm "acceleration" etc) or qemu contains enough bits from kvm to make kvm
obsolete, -- at that time there will be one package in Debian.
Is this the case ? Should we go ahead and replace KVM with QEMU or
should we keep our KVM Debian package installed and instead wait for
newer KVM versions to be packaged ?
There is qemu-kvm_0.11.0 package ready to be processed. But due to various
reasons it is not entered -unstable yet. (It was uploaded about a month
ago).
Sorry, I know that the QEMU maintainer isn't thw KVM maintainer as
well, I was just wondering how should we proceed now or thing things
have changed somewhat regarding this topic.
As far as I can understand from my reading of the KVM development
mailing list, KVM is still ahead of QEMU reagrding a lot of topics,
including features and speed. I just wanted to know if something is
differente regarding the Debian packaging of QEMU and if it should be
used instead of KVM these days.
Yes, kvm is ahead of qemu in things around kvm, i.e. on x86 machines with
hardware-assisted virtualisation. But for now it breaks some things in
"plain qemu" (ie, without hw assistance).
The goal is to push changes back to qemu, it is being done all the time,
but this is not simple process, and kvm is being developed further too.
/mjt
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