Messages in this thread | | | Date | Fri, 19 Mar 2021 09:46:45 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH V4 05/18] iommu/ioasid: Redefine IOASID set and allocation APIs |
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On Fri, Mar 19, 2021 at 10:58:41AM +0100, Jean-Philippe Brucker wrote:
> Although there is no use for it at the moment (only two upstream users and > it looks like amdkfd always uses current too), I quite like the > client-server model where the privileged process does bind() and programs > the hardware queue on behalf of the client process.
This creates a lot complexity, how do does process A get a secure reference to B? How does it access the memory in B to setup the HW?
Why do we need separation anyhow? SVM devices are supposed to be secure or they shouldn't do SVM.
Jason
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