Messages in this thread | | | Date | Mon, 16 May 2022 15:58:22 -0700 | From | Jacob Pan <> | Subject | Re: [PATCH 6/7] x86/boot/tboot: Move tboot_force_iommu() to Intel IOMMU |
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Hi Jason,
On Mon, 16 May 2022 15:06:28 -0300, Jason Gunthorpe <jgg@nvidia.com> wrote:
> Unrelated, but when we are in the special secure IOMMU modes, do we > force ATS off? Specifically does the IOMMU reject TLPs that are marked > as translated? Yes, VT-d context entry has a Device TLB Enable bit, if 0, it means "Translation Requests (with or without PASID) and Translated Requests received and processed through this scalable-mode context-entry are blocked."
Thanks,
Jacob
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