Date: Thu, 9 Apr 2015 11:35:12 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Gustau P?rez <gperez@entel.upc.edu> Cc: freebsd-current@freebsd.org Subject: Re: No IOMMU/DMAR with DELL 3020 Message-ID: <20150409083512.GG2390@kib.kiev.ua> In-Reply-To: <5526381A.3010909@entel.upc.edu> References: <552635A5.5070707@entel.upc.edu> <20150409082128.GF2390@kib.kiev.ua> <5526381A.3010909@entel.upc.edu>
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On Thu, Apr 09, 2015 at 10:28:10AM +0200, Gustau P?rez wrote: > Yup, sorry for the error. I checked the micro in the ark and it has vt-d: > > http://goo.gl/CZZRHz It only indicates that the CPU/northbridge has the hardware, but BIOS must do a work to configure it and to inform the OS about the configuration. Your BIOS did not. > > in the bios, there's only one option to enable virtualization > support, which is ticked. > > The complete log is here: > > http://dpaste.com/28FDMJQ > Dmesg would not give you any useful information there. A DMAR table is either present, or is it not. In the later case, OS cannot use the hardware, and if no option in BIOS is present, your only choice is to complain to the machine/BIOS vendor.
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