On Thu, May 14, 2020 at 04:16:37AM -0500, Dr. Greg wrote: > What we would recommend at this point is that you and Jarkko do the > Linux community and beyond a favor and wire up a simple kernel > command-line parameter that controls the ability of the driver to be > used, ie. enables/disables access to /dev/sgx/enclave.
I'm not opposed to adding a kernel param to disable SGX. At one point there was a proposal to extend clearcpuid to allow disabling multiple feature bits, but it looks like that went the way of the dodo. Note, such a param would disable SGX entirely, e.g. clear the feature bit in /proc/cpuinfo and prevent any in-kernel SGX code from running.
