The Xen virtual machine monitor was recently merged into the upcoming 2.6.23 Linux kernel in a series of patches from Jeremy Fitzhardinge. The project was originally started as a research project at the University of Cambridge, and has been repeatedly discussed as a merge candidate for the mainline Linux kernel.
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Member since:2006-11-07
Every user of Linux kernel runs Linux. And the question was about future of both KVM and Xen in Linux kernel.
Industry standard is Xen, that's the fact. It works with Linux, OpenSolaris, BSDs are porting it and Microsoft worked with XenSource somehow. So we can presume that Viridian will be Xen-compatibile.
Xen is very much "enterprise" like projects on http://thedailywtf.com. Yes, it works, but it code quality is horrible -- every kernel hacker reviewing Xen source code has run away.
KVM is clean and simple. It has almost all features of Xen (SMP guests, live migration etc.) and can run Xen guests. So Xen seem redundant on Linux.
And guess what? KVM is to be ported to FreeBSD: http://code.google.com/soc/2007/freebsd/appinfo.html?csaid=FACC0F1A...
I heard rumours about possibility of porting KVM to OpenSolaris. So we would have KVM as defacto standard.
Porting isn't so huge undertaking as porting Xen was. KVM is clean and looks much more like device driver. That's why it got merged into Linux kernel so fast -- it's not invasive.
Member since:
2005-08-10
Simple as that eh? You know, because *everyone* runs Linux :-P