From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C81E7366 for ; Fri, 8 Apr 2022 05:02:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBD29C385A3; Fri, 8 Apr 2022 05:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649394178; bh=c5BG8Yf7jVbns77YNrWRs2tR3VlDsFRWtOmkAUqYVWk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=wMiCIUY9WUUKaSC99sjQYpchMHMfivFhD+dwQaY9eL8wRUxDsvy3bi9nwGAV4iNlq ziK0flprQnJ8IfVuex73Y+gkFWG8eg7k5PgocQZe1qVhd6z+yWhFSBRLees5q5bwa6 Xtiwnj12SbLk7WHtx/88cxzugoJbCC/sJc6PtIT8= Date: Fri, 8 Apr 2022 07:02:55 +0200 From: Greg KH To: Jithu Joseph Cc: hdegoede@redhat.com, markgross@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, corbet@lwn.net, andriy.shevchenko@linux.intel.com, ashok.raj@intel.com, tony.luck@intel.com, rostedt@goodmis.org, dan.j.williams@intel.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, platform-driver-x86@vger.kernel.org, patches@lists.linux.dev, ravi.v.shankar@intel.com Subject: Re: [PATCH v2 04/10] platform/x86/intel/ifs: Load IFS Image Message-ID: References: <20220407191347.9681-1-jithu.joseph@intel.com> <20220407191347.9681-5-jithu.joseph@intel.com> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220407191347.9681-5-jithu.joseph@intel.com> 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