Re: [coreboot] VT-d support

[Zaolin]

You are asking for VT-d support. You are talking about Intel platforms ?

But for which specific platform you are asking for ? There are so many..

Am 05.06.2017 um 10:24 schrieb Himanshu Chauhan:
> > On 05-Jun-2017, at 9:41 PM, ron minnich  wrote:
> >
> > On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan  wrote:
> > Hi,
> >
> > VT-d requires support from BIOS. Does coreboot support VT-d?
> >
> > what support does it need?
>
> BIOS adds DMAR and other entries in the ACPI table. I am not quite sure how these entries are formed exactly though.
>
> https://www.mjmwired.net/kernel/Documentation/Intel-IOMMU.txt
>
> http://www.intel.com/content/dam/www/public/us/en/documents/product-specific...
>
> Is anybody working on this?
>
> Regards
> Himanshu

VT-d support

[Himanshu Chauhan]

> On 05-Jun-2017, at 10:02 PM, Zaolin  wrote:
>
> You are asking for VT-d support. You are talking about Intel platforms ?

Yes. I am talking about intel platforms. All CPUs that have VT-d support need support from motherboards as well. So any setup with VT-d enabled CPU and a motherboards that assists it, is what I am talking about.
> But for which specific platform you are asking for ? There are so many..
>
> Am 05.06.2017 um 10:24 schrieb Himanshu Chauhan:
> > > On 05-Jun-2017, at 9:41 PM, ron minnich  wrote:
> > >
> > > On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan  wrote:
> > > Hi,
> > >
> > > VT-d requires support from BIOS. Does coreboot support VT-d?
> > >
> > > what support does it need?
> >
> > BIOS adds DMAR and other entries in the ACPI table. I am not quite sure how these entries are formed exactly though.
> >
> > https://www.mjmwired.net/kernel/Documentation/Intel-IOMMU.txt
> >
> > http://www.intel.com/content/dam/www/public/us/en/documents/product-specific...
> >
> > Is anybody working on this?
> >
> > Regards
> > Himanshu