On Saturday, March 5, 2016 at 3:56:18 PM UTC-8, Mirosław Wojciechowski wrote: > Ok, i Checking this, and in my bios not Vt-d fuctions. But i only inform is > that Qubes works well. > > Regards. > > > > sob., 5.03.2016 o 22:58 użytkownik Chris Laprise <[email protected]> > napisał: > > > > > On 03/05/2016 03:59 PM, Mirosław Wojciechowski wrote: > > > > > > This must be some error, i have enable intel virtualization in bios. > > > On Virtualbox & VMWARE all working great. Qubes worki gratuluję to. > > > > > > > > > > It may be that Vt-x (normal virtualization extensions) is enabled, but > > without Vt-d (I/O virtualization)... I think this indicates that Lenovo > > does not support IOMMU features in the Thinkpad Edge line. I have seen > > reports about older Edge models having the Vt-d feature greyed-out in > > the BIOS settings. > > > > Qubes can work without IOMMU, but the level of security is reduced somewhat. > > > > Chris
There are two reasons why VT-d is not supported. 1) The Thinkpad Edge E531 has a HM77 chipset, which does not support VT-d. Only their "business" and "workstation" lines (e.g. T530, W530) uses the QM77 chipset, which does support VT-d. 2) The Thinkpad Edge E531 has a socketed motherboard (which is a "good" thing, in general, and allows swapping out CPU's for better ones, etc). The 3632QM rPGA package (as opposed to BGA--a.k.a. "soldered") does NOT support VT-d. If you want VT-d, you will have to upgrade to a minimum of 3720QM for socketed CPU's. However, see reason #1 for why it would not work in your laptop. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/82d193a8-6a00-4091-8068-5d0aef2e8611%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
