Re: [PATCH RFC v1 02/15] iommu: Add a simple PASID table library

On Fri, Mar 12, 2021 at 06:17:55PM +0530, Vivek Kumar Gautam wrote: > > Regarding the overall design, I was initially assigning page directories > > instead of whole PASID tables, which would simplify the driver and host > > implementation. A major complication, however, is SMMUv3 accesses PASID >

Re: [PATCH RFC v1 02/15] iommu: Add a simple PASID table library

Hi Jean, On 3/3/21 10:41 PM, Jean-Philippe Brucker wrote: Hi Vivek, Thanks again for working on this. I have a few comments but it looks sensible overall. Thanks a lot for reviewing the patch-series. Please find my responses inline below. Regarding the overall design, I was initially

Re: [PATCH RFC v1 02/15] iommu: Add a simple PASID table library

Hi Vivek, Thanks again for working on this. I have a few comments but it looks sensible overall. Regarding the overall design, I was initially assigning page directories instead of whole PASID tables, which would simplify the driver and host implementation. A major complication, however, is

[PATCH RFC v1 02/15] iommu: Add a simple PASID table library

Add a small API in iommu subsystem to handle PASID table allocation requests from different consumer drivers, such as a paravirtualized iommu driver. The API provides ops for allocating and freeing PASID table, writing to it and managing the table caches. This library also provides for