On Wed, 5 Jun 2024, David E. Box wrote: > Intel On Demand adds attestation and firmware measurement retrieval > services through use of the protocols defined the Security Protocols and > Data Measurement (SPDM) specification. SPDM messages exchanges are used to > authenticate On Demand hardware and to retrieve signed measurements of the > NVRAM state used to track feature provisioning and the NVRAM state used for > metering services. These allow software to verify the authenticity of the > On Demand hardware as well as the integrity of the reported silicon > configuration. > > Add an ioctl interface for sending SPDM messages through the On Demand > mailbox. Provides commands to get a list of SPDM enabled devices, get the > message size limits for SPDM Requesters and Responders, and perform an SPDM > message exchange. > > Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> > Link: https://www.dmtf.org/sites/default/files/standards/documents/DSP0274_1.0.1.pdf [1] > --- > +static int sdsi_spdm_do_command(struct sdsi_priv *priv, > + struct sdsi_spdm_command __user *argp) > +{ > + u32 req_size, rsp_size; > + > + if (get_user(req_size, &argp->size)) > + return -EFAULT; > + > + if (req_size < 4 || req_size > sizeof(struct sdsi_spdm_message)) Hi David, Is that 4 actually SPDM_HEADER_SIZE? If my guess is correct, no need to send an updated version, I'll just fix it while applying. -- i.
