lkml.org 
[lkml]   [2021]   [Dec]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH RESEND V2 4/6] platform/x86: Add Intel Software Defined Silicon driver
From
Date
On Wed, 2021-12-08 at 17:24 +0100, Greg KH wrote:
> On Tue, Dec 07, 2021 at 05:50:13PM -0800, David E. Box wrote:
> > Intel Software Defined Silicon (SDSi) is a post manufacturing mechanism for
> > activating additional silicon features. Features are enabled through a
> > license activation process.  The SDSi driver provides a per socket, sysfs
> > attribute interface for applications to perform 3 main provisioning
> > functions:
> >
> > 1. Provision an Authentication Key Certificate (AKC), a key written to
> >    internal NVRAM that is used to authenticate a capability specific
> >    activation payload.
> >
> > 2. Provision a Capability Activation Payload (CAP), a token authenticated
> >    using the AKC and applied to the CPU configuration to activate a new
> >    feature.
> >
> > 3. Read the SDSi State Certificate, containing the CPU configuration
> >    state.
> >
> > The operations perform function specific mailbox commands that forward the
> > requests to SDSi hardware to perform authentication of the payloads and
> > enable the silicon configuration (to be made available after power
> > cycling).
> >
> > The SDSi device itself is enumerated as an auxiliary device from the
> > intel_vsec driver and as such has a build dependency on CONFIG_INTEL_VSEC.
> >
> > Link: https://github.com/intel/intel-sdsi
>
> There is no code at this link :(
>

Not yet. It's currently just documentation. But sample code was added to this patch series.

\
 
 \ /
  Last update: 2021-12-08 18:56    [W:0.130 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site