On Friday 17 June 2005 22:39, Jon Smirl wrote: > I'm working on making EGL run non-root. Now I'm up against the IOCTLs > in DRM marked root only. DRM is a master/slave model, so this is > really a list of the master only calls. > > With EGL the first app to open the DRI device is master, and later > openers are slaves. To make EGL work PAM assigns you ownership of the > DRI device so that you can open it. > > Does anyone know if there are reasons why you really have to have root > priv to make any of these calls?
drmAddMap has to be root-only because it's mapping device memory into userspace (can trigger bus-master writes, blah blah, root escalation). I think that's the only one that _really_ needs it, and to be honest those mappings should get set up from the DRM side anyway and AddMap should just die. - ajax
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