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A comment on Securing Memory at EPYC Scale. Parent comment

Re:Securing Memory at EPYC Scale by ithkuil on Friday February 28, 2020 @02:37PM (#22445628)
Can it protect against DMA access from malicious PCI devices (in case the IOMMU has to be disabled, e.g. for performance reasons)?
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Re:Securing Memory at EPYC Scale by SaltySolomon on Friday February 28, 2020 @03:05PM (#22445853)
In transparent mode it will only protect against somebody pulling the Stick, in per page mode it will depend on the mode.
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