lkml.org 
[lkml]   [2023]   [Dec]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v7] misc: Add Nitro Secure Module driver
From
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@gmail.com>
>> Signed-off-by: Alexander Graf <graf@amazon.com>
> 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@amazon.com/

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


\
 
 \ /
  Last update: 2023-12-25 17:08    [W:0.132 / U:1.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site