HCL - Toshiba Satellite C55A

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Caleb Thompson

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Jan 10, 2017, 12:02:54 AM1/10/17
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Hello,
  I'm still new to Qubes and not sure if any problems I'm having are my own vs with harware vs with software so if it's okay I'll send feedback about that stuff once I know more what I'm talking about.
   Thanks for the new OS,

       Caleb
Qubes-HCL-TOSHIBA-Satellite_C55_A-20170109-185257.yml

Caleb Thompson

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Jan 10, 2017, 1:12:36 AM1/10/17
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Update: I'm trying to figure out why the report says I have no IOMMU when my BIOS says I'm set to VT-x. Are they different things? Is an IOMMU something I can take my computer to a computer store to have added to it?

Nicklaus McClendon

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Jan 10, 2017, 1:36:04 AM1/10/17
to Caleb Thompson, qubes...@googlegroups.com
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 01/09/2017 08:12 PM, Caleb Thompson wrote:
> Update: I'm trying to figure out why the report says I have no
> IOMMU when my BIOS says I'm set to VT-x. Are they different things?
> Is an IOMMU something I can take my computer to a computer store to
> have added to it?

Intel VT-d provides IOMMU support on Intel chips. If your processor
does not support IOMMU/VT-d, you will need to get a new processor, it
isn't something that can just be added.

- --
kulinacs <nick...@kulinacs.com>
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Ángel

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Jan 10, 2017, 1:39:33 PM1/10/17
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Nicklaus McClendon wrote:
> On 01/09/2017 08:12 PM, Caleb Thompson wrote:
> > Update: I'm trying to figure out why the report says I have no
> > IOMMU when my BIOS says I'm set to VT-x. Are they different things?
> > Is an IOMMU something I can take my computer to a computer store to
> > have added to it?
>
> Intel VT-d provides IOMMU support on Intel chips. If your processor
> does not support IOMMU/VT-d, you will need to get a new processor, it
> isn't something that can just be added.

Note that even if the chipset supports IOMMU, it may be disabled in the
‘BIOS’, or even not supported by it:

«Even when the chipset supports IOMMU, the bios must have a ACPI IVRS
table to enable the use of it!»
- https://wiki.xenproject.org/wiki/VTd_HowTo

Nicklaus McClendon

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Jan 10, 2017, 11:34:52 PM1/10/17
to Caleb Thompson, qubes...@googlegroups.com
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 01/10/2017 03:01 PM, Caleb Thompson wrote:
> So how important is it that I don't have an IOMMU or TPM? What
> things can I not do? Sorry for the newbie question.
>
>
> On Mon, Jan 9, 2017 at 8:35 PM, Nicklaus McClendon
> <nick...@kulinacs.com <mailto:nick...@kulinacs.com>> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
>
> On 01/09/2017 08:12 PM, Caleb Thompson wrote:
>> Update: I'm trying to figure out why the report says I have no
>> IOMMU when my BIOS says I'm set to VT-x. Are they different
>> things? Is an IOMMU something I can take my computer to a
>> computer store to have added to it?
>
> Intel VT-d provides IOMMU support on Intel chips. If your
> processor does not support IOMMU/VT-d, you will need to get a new
> processor, it isn't something that can just be added.
>
> - -- kulinacs <nick...@kulinacs.com
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>
IOMMU allows you to isolate devices to specific chunks of memory.
Without it is possible for someone to use a device in any VM to
compromise the entire system.

The TPM is mostly used for Anti Evil Maid with Qubes.
https://theinvisiblethings.blogspot.com/2011/09/anti-evil-maid.html

- --
kulinacs <nick...@kulinacs.com>
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Tai...@gmx.com

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Jan 10, 2017, 11:43:57 PM1/10/17
to Nicklaus McClendon, Caleb Thompson, qubes...@googlegroups.com
So everyone knows AMD's version of IOMMU is called AMD-Vi.
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