On Tue, 2005-08-23 at 16:22 +0200, Stephane Marchesin wrote: > Ok, here is what came out of the irc meeting : > - we don't need to enforce video memory ownership, but the drm needs to > be able to track allocation owners anyway, for example if a process dies > unexpectedly.
How expensive would it be to protect one processes video memory from another? I would like to be able to run applications for different users on the screen at the same time and prevent both reading and writing of the images. If not possible on current hardware, what would it take from new hardware to make this possible? > - regions that are marked as "preserve" have a matching backing store > region in system ram. That region is made of pinned pages. Do they really need to be pinned? That's a huge waste of memory. -keith
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