----- Original Message ----- > From: "Christian K?nig" <deathsimple at vodafone.de> > To: "j glisse" <j.glisse at gmail.com> > Cc: "Jerome Glisse" <jglisse at redhat.com>, dri-devel at > lists.freedesktop.org > Sent: Thursday, 26 April, 2012 10:11:12 AM > Subject: Re: [PATCH 01/24] drm/radeon: remove fence/ring/ib debugfs files > > Hi Jerome, > > I totally agree that we can remove the following debugfs files, since > everything that just prints out or modifies register informations > doesn't belongs into the kernel driver and should be moved to > radeontool > instead.
In the future with secure boot we will need a better mechanism to diagnose things than a userspace tool mapping pci bars, which we can't allow to happen in a secure boot environment, so dropping all the files might not be a good idea unless we provide a mechanism for radeontool to use. We can't allow userspace to read/write arbitrary registers and stay secure. Dave.
