linux-kernel - Re: [PATCH v2 04/10] platform/x86/intel/ifs: Load IFS Image

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Message-ID: <Yk/B/6wzC0O8dC24@kroah.com>
Date:   Fri, 8 Apr 2022 07:02:55 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jithu Joseph <jithu.joseph@...el.com>
Cc:     hdegoede@...hat.com, markgross@...nel.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, corbet@....net,
        andriy.shevchenko@...ux.intel.com, ashok.raj@...el.com,
        tony.luck@...el.com, rostedt@...dmis.org, dan.j.williams@...el.com,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, patches@...ts.linux.dev,
        ravi.v.shankar@...el.com
Subject: Re: [PATCH v2 04/10] platform/x86/intel/ifs: Load IFS Image

On Thu, Apr 07, 2022 at 12:13:41PM -0700, Jithu Joseph wrote:
> IFS uses a scan image format that shares the same header as
> microcode updates and deployment approach for these images mirrors
> that of microcode update. Specifically, enable images to be deployed
> relative to a static symlink in /lib/firmware and then load
> into kernel memory via request_firmware().
> 
> The image is specific to a processor family, model and stepping.
> IFS requires that a test image be loaded before any ifs test is
> initiated. Load the image that matches processor signature.
> The IFS image is signed by Intel.
> 
> The IFS image file follows a similar naming convention as used for
> Intel CPU microcode files. The file must be located in the firmware
> directory where the microcode files are placed and named as {family/model
> /stepping}.scan as below:
> 
> /lib/firmware/intel/ifs/{ff-mm-ss}.scan

Is the firmware already submitted to the linux-firmware project for
inclusion there?

If not, where should a user get it from?

thanks,

greg k-h