Hi! Is there any advance in using a CPU which supports Intel VT when having only paravirtualized domUs? Or does VT only help when there are fully virtualized Guests? How do i enable the usage of VT in FC6''s Xen? Kind Regards, Christian Reiter -- Christian Reiter ||| c.reiter@gmx.net
Christian Reiter schrieb:> Is there any advance in using a CPU which supports Intel VT > when having only paravirtualized domUs?No, I don''t think so (AFAIK!).> How do i enable the usage of VT in FC6''s Xen?It will be used automatically, no further action required. fs
Christian Reiter
2007-May-19 15:01 UTC
Re: [Fedora-xen] Intel VT and paravirtualized Guests?
Hi Felix!> > No, I don''t think so (AFAIK!).So i don''t need it at the moment... Thanks! Mit freundlichen Grüßen, /// Kind Regards, Christian Reiter -- Christian Reiter ||| c.reiter@gmx.net
Daniel P. Berrange
2007-May-19 19:16 UTC
Re: [Fedora-xen] Intel VT and paravirtualized Guests?
On Fri, May 18, 2007 at 11:13:08PM +0200, Christian Reiter wrote:> Hi! > > Is there any advance in using a CPU which supports Intel VT > when having only paravirtualized domUs? > > Or does VT only help when there are fully virtualized Guests?VT is only useful for fully virtualized guests. A paravirtualized guest is already much faster than a fully-virt guest, regardless of VT.> How do i enable the usage of VT in FC6''s Xen?There''s nothing to enable[1] - if your CPU supports it, Xen will let you create HVM guests, if your CPU doesn''t support it, then you won''t be able to use HVM. Regards, Dan. [1] Well, ok VT may be disabled if your BIOS if using Intel CPUs. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|