Thanks for the clarification.
On 17 Aug 2010 17:57, "Pasi Kärkkäinen" <pa...@iki.fi> wrote: > On Tue, Aug 17, 2010 at 09:35:24AM +0100, James Hogarth wrote: >> > >> > Uh.. are you mixing Xen and KVM now? >> > >> > I think KVM *always* requires the kernel module, aka CPU support for hardware virtualization. >> > >> > -- Pasi >> > >> >> You might be right... having trouble googling something... but I >> thought that kvm without -enable-kvm (or with -no-kvm) and with >> -kernel, -append and -initrd specified could be used for a >> paravirtualized guest .... However that might just be fully emulated >> on qemu which might or might not help rather than >> paravirtualization... >> > > Without KVM Qemu runs everything on pure software, > so it's still full virtualization, but damn slow. > >> My apologies if I err ^^ been a while since I had a system without >> available an vmx/svm interface on the CPU.... >> >> I know for a fact that libvirt doesn't support PV guests under KVM... >> virt-install (which uses libvirt) will refuse to try it etc. >> > > Yeah, because PV guests are *Xen* guests. > To run PV guests you need to be running Xen hypervisor. > >> I'll test it later this week to satisfy my curiosity ;) >> > > "Xenner" is a separate tool that is able to run some Xen PV guests on KVM, > but it's experimental and it's not developed anymore. > > Xenner requires KVM, and thus CPU virtualization extensions. > > Only way to run Xen PV guests on a hardware without CPU virtualization support > is to actually use Xen hypervisor :) > > -- Pasi > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt@centos.org > http://lists.centos.org/mailman/listinfo/centos-virt
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