> It would probably be better to know _which_ context banks we shouldn't > touch, no? Otherwise what happens to the others? > Do we not need to worry about the SMRs as well? This was mimicked from CAF (think [1]) and the SMMUs don't make the hypervisor angry anymore, so I wouldn't be too picky on that if it works.. [1] https://github.com/sonyxperiadev/kernel/blob/aosp/LA.UM.7.1.r1/drivers/iommu/arm-smmu.c#L4104-L4109 Regards Konrad