Re: [qubes-users] Re: HCL - Toshiba Satellite C55A

2017-01-10 Thread taii...@gmx.com 

So everyone knows AMD's version of IOMMU is called AMD-Vi.

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Re: [qubes-users] Re: HCL - Toshiba Satellite C55A

2017-01-10 Thread Nicklaus McClendon 
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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 
> mailto:nickl...@kulinacs.com>> wrote:
> 
> -BEGIN PGP SIGNED MESSAGE- Hash: SHA256
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> 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.
> 
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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

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Re: [qubes-users] Re: HCL - Toshiba Satellite C55A

2017-01-10 Thread Ángel 
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

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Re: [qubes-users] Re: HCL - Toshiba Satellite C55A

2017-01-09 Thread Nicklaus McClendon 
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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.

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[qubes-users] Re: HCL - Toshiba Satellite C55A

2017-01-09 Thread Caleb Thompson 
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?

On Mon, Jan 9, 2017 at 7:02 PM, Caleb Thompson  wrote:

> 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
>

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