No IOMMU/DMAR with DELL 3020
Gustau Pérez
gperez at entel.upc.edu
Thu Apr 9 08:44:24 UTC 2015
>> 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.
> Check also if there's any BIOS update from the manufacturer.
>
> Roger.
Thank you all.
The box has already the last vendor's BIOS version.
I've checked the bios of another DELL machine (a laptop) having vt-d
on the micro, and the BIOS on that machine has an option to enable or
disable VT-d, while the bios of the DEL 3020 misses that option. So as
Konstantin said, the bios is not advertising the VT-d capability bundled
in the chip, so I guess I can't move until the vendor decides to
implement that in its bios firmware.
Best all and thank you,
G.
--
---------------------------------------------------------------------------
Prou top-posting : http://ca.wikipedia.org/wiki/Top-posting
Stop top-posting : http://en.wikipedia.org/wiki/Posting_style
O O O Gustau Pérez i Querol
O O O Unitat de Gestió dels departaments
O O O Matemàtica Aplicada IV i Enginyeria Telemàtica
Universitat Politècnica de Catalunya
Edifici C3 - Despatx S101-B
UPC Campus Nord UPC
C/ Jordi Girona, 1-3
08034 - Barcelona
More information about the freebsd-current
mailing list