Re: [PATCH] SUPPORT.MD: Clarify the support state for the Arm SMMUv{1, 2} drivers

[Julien Grall <julien@xxxxxxx>]

On 23/09/2020 11:50, Bertrand Marquis wrote:
> Hi,
>
> > On 23 Sep 2020, at 09:28, Julien Grall <julien@xxxxxxx> wrote:
> >
> > From: Julien Grall <jgrall@xxxxxxxxxx>
> >
> > SMMUv{1, 2} are both marked as security supported, so we would
> > technically have to issue an XSA for any IOMMU security bug.
> >
> > However, at the moment, device passthrough is not security supported
> > on Arm and there is no plan to change that in the next few months.
> >
> > Therefore, mark Arm SMMUv{1, 2} as supported but not security supported.
> >
> > Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
> Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
Thanks!

> We will publish in the next week a first implementation of SMMUv3 support which 
> might make sense to have fully Supported.
I am not sure whether you include security supported in your "fully 
supported"
However, I would consider to follow the same model as we did with the 
IPMMU. The driver would first be marked as a technical preview to allow 
more testing in the community.
Cheers,

--
Julien Grall