On Fri, Feb 8, 2013 at 5:29 PM, Matthew Garrett <matthew.garrett@xxxxxxxxxx> wrote: > On Fri, 2013-02-08 at 17:22 -0800, H. Peter Anvin wrote: > >> You don't have to build the kernel twice to exclude a loadable module. > > I guess you could just strip the signatures off any modules you don't > want to support under Secure Boot, but that breaks some other use cases. Also, _reading_ MSRs from userspace arguably has utility that doesn't compromise ring-0. So excluding the driver entirely seems like overkill. -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html