On Fri, May 02, 2008 at 11:12:53AM -0700, Mike Marion wrote: > Quoting "Gregory K. Ruiz-Ade" <[EMAIL PROTECTED]>: > > >anyone have a link that explains, for stupid people like me, the > >differences between paravirt and full virt on xen, including all the > >limitations of the two? > > Quick and dirty (I might be wrong, but this is how I understand it): > - Paravirt - Now hw support required. Quest OSes must know they're > running inside paravirt host (i.e. linux with xen kernel). Has speed > advantages over full because it's basically like an OS inside > processes and so the main/dom0 install is basically just switching > processes. You also cannot cross bitness (i.e. no 32bit guest OS on > 64bit dom0 OS.. yet anyway) > > - Full virt - Requires HW support (i.e. AMD Pacifica or Intel VTx > extensions). Advantages are the guest OS doesn't even know it's being > virtualized. Disadvantage is more of a speed hit as the hw basically > has to context switch out all the info (registers and such) for each > switch between virtual hosts (vs the paravirt being done by OS).
Then how about VMware Server? It does not require special hardware, nor does the OS require special drivers. -- *********************************************************************** * John Oliver http://www.john-oliver.net/ * * * *********************************************************************** -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
