| Subject | Re: [PATCH v2 20/24] iommu: Merge strictness and domain type configs | From | John Garry <> | Date | Fri, 30 Jul 2021 10:33:31 +0100 |
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On 28/07/2021 16:58, Robin Murphy wrote: > > -config IOMMU_DEFAULT_LAZY > - bool "lazy" > + Untrusted devices always use this mode, with an additional layer of > + bounce-buffering such that they cannot gain access to any unrelated > + data within a mapped page. > + > +config IOMMU_DEFAULT_DMA_LAZY > + bool "Translated - Lazy" > help
Since these are being renamed, can you update the kernel-parameters.txt:
iommu.strict= [ARM64, X86] Configure TLB invalidation behaviour
.... DMA unmap operations invalidate IOMMU hardware TLBs synchronously. unset - Use value of CONFIG_IOMMU_DEFAULT_{LAZY,STRICT}.
^^^^^
Thanks
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