Re: [Xen-devel] [PATCH 0/5] IOMMU: restrict visibility/scope if certain variables

[Julien Grall <julien@xxxxxxx>]

Hi Jan,

Adding Paul in CC as he now co-maintain the IOMMU code.


On 28/02/2020 12:24, Jan Beulich wrote:
> A number of the command line controlled variables are x86-
> or even x86-HVM-specific. Don't have those variables elsewhere
> in the first place (in some cases replace them by a #define),
> and as a result also don't silently accept such "iommu="
> sub-options which in fact have no effect.
I can confirm that all the parameters listed below are not used on Arm.

> 1: iommu_intremap is x86-only
> 2: iommu_intpost is x86/HVM-only
> 3: iommu_igfx is x86-only
> 4: iommu_qinval is x86-only
> 5: iommu_snoop is x86/HVM-only
>
> The series contextually depends on "AMD/IOMMU: without XT,
> x2APIC needs to be forced into physical mode"
>
> Jan
Cheers,

--
Julien Grall

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