Date: Thu, 09 Apr 2015 10:44:17 +0200 From: =?windows-1252?Q?Gustau_P=E9rez?= <gperez@entel.upc.edu> To: =?windows-1252?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com>, Konstantin Belousov <kostikbel@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: No IOMMU/DMAR with DELL 3020 Message-ID: <55263BE1.2030303@entel.upc.edu> In-Reply-To: <55263A8F.7050002@citrix.com> References: <552635A5.5070707@entel.upc.edu> <20150409082128.GF2390@kib.kiev.ua> <5526381A.3010909@entel.upc.edu> <20150409083512.GG2390@kib.kiev.ua> <55263A8F.7050002@citrix.com>
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>> 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.
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