Martin, Xen has support for two different kinds of guests. Paravirtualized guests are aware that they are running inside a virtual environment, and have been modified to operate well in this environment. All linux kernels above 2.6.27 (I think) with the pv_ops extensions compiled in can run as a Xen VM in this mode. This mode also does not require any particular CPU support.
With proper CPU support Xen can also be a hypervisor style environment, in which case the guest is not aware that it is running inside a virtual environment. FreeBSD of any vintage can run successfully in this mode. Unfortunately, there are greater performance penalties to running a guest in HVM mode as opposed to PVM mode. Mike On Thu, Mar 18, 2010 at 4:47 PM, Martin Cracauer <[email protected]> wrote: > I never got this so I rather ask: > > Xen should run OS kernels unmodified (compared to their native > hardware versions) if you have hardware virtualization support in the > CPU. > > Why doesn't this cover FreeBSD? > > I am missing something here. > > Martin > -- > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > Martin Cracauer <[email protected]> http://www.cons.org/cracauer/ > FreeBSD - where you want to go, today. http://www.freebsd.org/ > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-xen > To unsubscribe, send any mail to "[email protected]" > _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "[email protected]"
