Messages in this thread | | | Subject | Re: [PATCH 1/1] iommu/arm-smmu-v3: add support for BBML | From | "Leizhen (ThunderTown)" <> | Date | Wed, 27 Jan 2021 10:01:34 +0800 |
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On 2021/1/26 18:12, Will Deacon wrote: > On Mon, Jan 25, 2021 at 08:23:40PM +0000, Robin Murphy wrote: >> Now we probably will need some degreee of BBML feature awareness for the >> sake of SVA if and when we start using it for CPU pagetables, but I still >> cannot see any need to consider it in io-pgtable. > > Agreed; I don't think this is something that io-pgtable should have to care > about.
Yes, the SVA works in stall mode, and the failed device access requests are not discarded.
Let me look for examples. The BBML usage scenario was told by a former colleague.
> > Will > > . >
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