Hi,

El 16/8/21 a les 20:16, Samuel Thibault ha escrit:
Ok but I meant that the device_map interface already has has an "offset"

Ok, now I got it, yes I think that's better. I'll do that.

Actually I'm thinking that this is just another case of mremap().

I need help on this part, why is mremap relevant here?

The underlying question is getting the memory object of a given memory
range, like vm_region does.

Yes, I see that could be useful. Is vm_region not workig for proxies?

> We need to be careful since we don't want any process to be able to
> get the memory object of any other process

Is that not being checked yet? can I call vm_region to get another task's memory object now?


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