Hi, > > > I think for ttm just consistently using the one per-device mapping for > > > everything, with all the fake offsets, is probably the quickest route. > > > > Hmm, not clear how to fit dmabufs into this. dmabufs already have their > > own file, inode and address space. I'm not sure you can switch that > > over to the per-device mapping in the first place, and even if you can I > > have my doubts this is a good idea from a security point of view ... > > You can (plenty drivers do that already),
Have pointer(s) to code? > and not sure how that breaks > security? Go try mmap(fake-offset) on the dma-buf file handle to access other buffers of the drm device? Hmm, thinking again, I guess the verify-access restrictions should prevent that. cheers, Gerd _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
