On Thu, Sep 28, 2023 at 10:46:44PM +0000, Alexander Graf wrote: > When running Linux inside a Nitro Enclave, the hypervisor provides a > special virtio device called "NSM". This device has 2 main functions: > > 1) Provide attestation reports > 2) Modify PCR state > 3) Provide entropy > > This patch adds the core NSM driver that exposes a /dev/nsm device node > which user space can use to request attestation documents and influence > PCR states. A follow up patch will add a hwrng driver to feed its entropy > into the kernel. > > Originally-by: Petre Eftime <petre.eftime@xxxxxxxxx> Hasn't this been submitted a long time ago? What changed from that submission? Or am I mis-remembering things? > --- /dev/null > +++ b/drivers/misc/nsm.c > @@ -0,0 +1,470 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Amazon Nitro Secure Module driver. > + * > + * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, see <http://www.gnu.org/licenses/>. Please drop the license "boiler-plate" text, the SPDX line is sufficient. thanks, greg k-h
