Re: [PATCH v7 13/23] iommu/smmuv3: Implement attach/detach_pasid_table

Hi Robin, On 5/8/19 4:38 PM, Robin Murphy wrote: > On 08/04/2019 13:19, Eric Auger wrote: >> On attach_pasid_table() we program STE S1 related info set >> by the guest into the actual physical STEs. At minimum >> we need to program the context descriptor GPA and compute >> whether the stage1 is

Re: [PATCH v7 06/23] iommu: Introduce bind/unbind_guest_msi

Hi Robin, On 5/8/19 3:59 PM, Robin Murphy wrote: > On 08/04/2019 13:18, Eric Auger wrote: >> On ARM, MSI are translated by the SMMU. An IOVA is allocated >> for each MSI doorbell. If both the host and the guest are exposed >> with SMMUs, we end up with 2 different IOVAs allocated by each. >> guest

Re: [PATCH v7 12/23] iommu/smmuv3: Get prepared for nested stage support

Hi Robin, On 5/8/19 4:24 PM, Robin Murphy wrote: > On 08/04/2019 13:19, Eric Auger wrote: >> To allow nested stage support, we need to store both >> stage 1 and stage 2 configurations (and remove the former >> union). >> >> A nested setup is characterized by both s1_cfg and s2_cfg >> set. >> >>