linux-kernel - Re: [PATCH 5/5] platform/x86: Add Intel Software Defined Silicon driver

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Date:   Fri, 1 Oct 2021 09:16:47 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "David E. Box" <david.e.box@...ux.intel.com>
Cc:     lee.jones@...aro.org, hdegoede@...hat.com, mgross@...ux.intel.com,
        bhelgaas@...gle.com, andriy.shevchenko@...ux.intel.com,
        srinivas.pandruvada@...el.com, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-pci@...r.kernel.org
Subject: Re: [PATCH 5/5] platform/x86: Add Intel Software Defined Silicon
 driver

On Thu, Sep 30, 2021 at 06:28:15PM -0700, 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, ioctl
> 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 ioctl 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_extended_caps driver and as such has a build dependency on
> CONFIG_INTEL_EXTENDED_CAPS.
> 
> Link: https://github.com/intel/intel-sdsi
> Signed-off-by: David E. Box <david.e.box@...ux.intel.com>

I do not see the "required" review that Intel developers need when
sending stuff to me.  What happened here?

thanks,

greg k-h