Messages in this thread |  | | | Date | Wed, 3 Jun 2009 18:36:22 +0100 | | From | Alan Cox <> | | Subject | Re: Merge Xen (the hypervisor) into Linux |
On Wed, 03 Jun 2009 11:31:13 -0600 "Chris Friesen" <cfriesen@nortel.com> wrote:
> Ingo Molnar wrote: > > > A lot of Xen legacies could be dropped: the crazy ring1 hack on > > 32-bit, the various wide interfaces to make pure-software > > virtualization limp along. All major CPUs shipped with hardware > > virtualization support in the past 2-3 years, so the availability of > > VMX and SVM can be taken for granted for such a project. > > That's a pretty bold statement. I have five x86 machines in my house > currently being used, and none of them support VMX/SVM. > > At least some Lenovo laptops disable VMX in the BIOS with no way to > enable it. Some of the Core2Duo chips don't support VMX at all.
Ditto some Atom cpus which in turn means you can't run kvm on all the netbooks right now - which is one place its very useful.
> I think Xen without paravirtualization would be a serious degradation of > usefulness.
At that point you can just use kvm anyway.
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