Re: [PATCH v2] iommu/vt-d: avoid unnecessory panic if iommu init fail in tboot system

From: Will Deacon
Date: Wed Nov 18 2020 - 09:19:36 EST


On Tue, 10 Nov 2020 15:19:08 +0800, Zhenzhong Duan wrote:
> "intel_iommu=off" command line is used to disable iommu but iommu is force
> enabled in a tboot system for security reason.
>
> However for better performance on high speed network device, a new option
> "intel_iommu=tboot_noforce" is introduced to disable the force on.
>
> By default kernel should panic if iommu init fail in tboot for security
> reason, but it's unnecessory if we use "intel_iommu=tboot_noforce,off".
>
> [...]

Applied to arm64 (for-next/iommu/fixes), thanks!

[1/1] iommu/vt-d: Avoid panic if iommu init fails in tboot system
https://git.kernel.org/arm64/c/4d213e76a359

Cheers,
--
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev