On Thu, Apr 02, 2020 at 02:41:39PM -0700, Andy Lutomirski wrote: > On Tue, Mar 31, 2020 at 5:24 PM Sean Christopherson > <sean.j.christopherson@xxxxxxxxx> wrote: > > > > On Tue, Mar 31, 2020 at 10:39:38AM -0700, Andy Lutomirski wrote: > > > > If EXECMEM is a sticking point, one way to dodge it would be to add a > > helper to allow SELinux to detect enclave files. It'd be ugly, but simple. > > That doesn't solve the generic labeling issue though. It also begs the > > question of why hacking SELinux but not do_mmap() would be acceptable. > > > > If you have any ideas for fixing the noexec issue without resorting to an > > anon inode, we're all ears. > > Hmm. Maybe teach udev to put /dev/sgx on a different fs and > bind-mount it? Or make /dev/sgx be an actual filesystem? Or just > mount /dev with exec enabled? I'm not forseeing how the last option could work out as it is distro's choice. Casey, do you think we could use securityfs for this or do you have some other recommendation? I'm just asking you because you've used securityfs a lot. /Jarkko
