KVM is qemu that takes advantage of a kernel module (kvm-intel or kvm-amd) to speed up the process by using VT extensions on your processor (newer ones only). There is no functional differences between the two. A hypervisor is a host system that can intercept syscalls and reroute accordingly.
Jacob Warner White wrote: > Ron-- > > I don't understand the qemu/kvm distinction or what hypervisor is. In > trying out kvm I had to make a choice and didn't know what that involves. > > Warner > > Warner White > 12 Harbor Watch Road > Burlington VT 05401 > H: 802-863-0182 > C: 802-318-0956 > www.warnerwhite.org <http://www.warnerwhite.org/> > > > ------------------------------------------------------------------------ > *From:* Rion D'Luz <[email protected]> > *To:* [email protected] > *Sent:* Thursday, January 1, 2009 11:14:57 PM > *Subject:* Re: Xen, kvm, Bochs > > Hello Werner et al: > > As suggested below, xen is more for servers than workstations. If you > get it from a repo > it installs a xen kernel, which you select at boot from the grub menu. > Then you have to create an image > for xen to load. > It's really straightforward (compared to what it used to be:), and > setting up images is no big > deal. From there, it's just a matter of "xm -c /etc/xen/imagename" > from the CLI or use a GUI (i think > its "System->VirtualMachineManager") > > But for a workstation it may be overkill. Personally, I'd stick to > qemu, but I have yet to try kvm, > which may be a better alternative. > FWIW, have this plethora of virtualizers, I really have little need > for using any of them apart from > development purposes. > > Hope this helps and Happy New Year, > > Rion > > On Thursday 01 January 2009, Jacob Torrey wrote: > > I suggest out of the three you use kvm, xen is pretty specialized for > > running other Linux images, and Bochs is rather old. KVM takes advantage > > of your VT extensions on your CPU (if you have them, otherwise it's that > > same as qemu). You can run it from the command line bye typing 'kvm' to > > get a list of commands, which will handle anything from network, sound > > and others. There is a virt manager for Ubuntu to GUIize KVM, and it's > > guide can be found at: > > > http://tombuntu.com/index.php/2008/04/14/virtualization-with-virt-manager-and-kvm-in-ubuntu-804/ > > > > Good luck! > > > > Jacob > > > > Warner White wrote: > > > Ron-- > > > > > > You suggested I run VirtualBox, and I'm doing it. It's easy and works > > > well--except for the very clunky USB connection I finally succeeded in > > > making. But I need one for trying to HotSync my PDA and so far I > > > haven't been able to. So I'm trying Xen or other virtualizers. I've > > > discovered that Xen, kvm, and Bochs are all available through Synaptic > > > Pkg Mgr. So I've installed, only to discover that they don't show up > > > in Applications or System Preferences or Administration. I take that > > > to mean I have to start them from command line--but I don't know how > > > to do that. And perhaps there are some dependecies I still need. The > > > web sites look very complicated--line after line of command line > stuff. > > > > > > I did DOS years ago and I can do simple command line stuff, but I > > > still have a long way to go. > > > > > > Suggestions? > > > > > > Warner > > > > > > Warner White > > > 12 Harbor Watch Road > > > Burlington VT 05401 > > > H: 802-863-0182 > > > C: 802-318-0956 > > > www.warnerwhite.org <http://www.warnerwhite.org/> > > > > > > >
