[RFC] How implement Secure Data Path ?

Benjamin Gaignard benjamin.gaignard at linaro.org
Tue May 12 01:46:26 PDT 2015

I think now I have an answer to my question.

I will back come in a couple of weeks with a generic dmabuf allocator.
The feature set of this should be:
- allow to have per device specificone  allocator
- ioctl for buffer allocation and exporting dmabuf file descriptor on /dev/foo
- generic API to be able to call buffer securing module which is
platform specific.
- ioctl and kernel API to set/get dmabuf secure status

Sumit had already done a draft of this kind of dmabuf allocator with
his cenalloc [1]
I think I will start from that.


[1] http://git.linaro.org/people/sumit.semwal/linux-3.x.git on
cenalloc_wip branch.

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