On Wed, Jul 14, 2010 at 2:28 PM, Stephen Harris <li...@spuddy.org> wrote: > On Wed, Jul 14, 2010 at 02:20:10PM -0500, Victor Padro wrote: >> they're not explicit as I stated but perhaps it just states as VT-D or >> something that you may overlooked it. > > VT-d (Virtualization Technology for Directed I/O) is virtualization > for devices. With this it's possible for a guest OS to have direct > exclusive access to hardware devices (maybe one of the USB controllers, > or a disk controller). This is, really, a layer violation but it can be > a performance gain or allow VMs to access hardware that the hypervisor > can not emulate. My machine, apparently, supports VT-d in the BIOS but > either the chipset (H55) doesn't support it or something else is wrong; > the capability isn't available to the hypervisor. > > This isn't needed for CPU virtualization to work. > > -- > > rgds > Stephen > _______________________________________________ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos >
Yes I know, but the idea is to look a little bit more in such entries, isn't? ;) AFAIK, VT-d is only implemented LGA 1156/P55 and 34XX Chipsets: http://www.intel.com/products/server/chipsets/3400-3420/3400-3420-overview.htm -- Linux User #452368 http://twitter.com/vpadro "Everything that irritates us about others can lead us to an understanding of ourselves" _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
