Hey Michael,
On 25.12.23 15:06, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 09:35:22PM +0000, Alexander Graf wrote:
When running Linux inside a Nitro Enclave, the hypervisor provides a
special virtio device called "Nitro Security Module" (NSM). This device
has 3 main functions:
1) Provide attestation reports
2) Modify PCR state
3) Provide entropy
This patch adds a driver for NSM that exposes a /dev/nsm device node which
user space can issue an ioctl on this device with raw NSM CBOR formatted
commands to request attestation documents, influence PCR states, read
entropy and enumerate status of the device. In addition, the driver
implements a hwrng backend.
Originally-by: Petre Eftime <petre.eftime@xxxxxxxxx>
Signed-off-by: Alexander Graf <graf@xxxxxxxxxx>
Alex are you going to publish the spec patch for this device? Important
so we don't need to guess at behaviour when e.g. making changes to
virtio APIs. Also, which tree do you want this to go through?
The spec patch including ping mail are sitting on the virtio-comments
mailing list since October. I haven't seen any reply unfortunately :(
https://lore.kernel.org/virtio-comment/20231025235345.17788-1-graf@xxxxxxxxxx/
Happy to read feedback if you have any :).
This patch here is already applied in Greg's misc tree which I'm happy
to have it trickle to Linus through.
Alex
Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879
