From owner-svn-src-head@freebsd.org Sun Jun 17 01:25:35 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 28ECE1005AE6 for ; Sun, 17 Jun 2018 01:25:35 +0000 (UTC) (envelope-from lists@eitanadler.com) Received: from mail-yb0-x241.google.com (mail-yb0-x241.google.com [IPv6:2607:f8b0:4002:c09::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B9B0A774FD for ; Sun, 17 Jun 2018 01:25:34 +0000 (UTC) (envelope-from lists@eitanadler.com) Received: by mail-yb0-x241.google.com with SMTP id x128-v6so4810664ybg.3 for ; Sat, 16 Jun 2018 18:25:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eitanadler.com; s=0xdeadbeef; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=HDCg/5zVfgwRdmwmz0kFqXJcgsfQC7cmJju4/cZTJVM=; b=kQ1mPUp11sKx4IICxpcgdzpDXtXk639BjuRev6B1/Uqg4ISAX3JREEj48OT/Iq58N7 VszVx560CavSJW8FkwNzv9r7km2XUQKbzgSm6DFXQemMWNW+t4jhmoiJzsv7xRnPsy3E /t3aDLsMYQJJg4z7rAqszkASYtLbWr6ceDthg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=HDCg/5zVfgwRdmwmz0kFqXJcgsfQC7cmJju4/cZTJVM=; b=eqGuSdPwfLNr7iu/SmMrWnv+XwEyuk1nBbYQYRp//v4PBqdfhpn+Q25/9GhVAPpvWg NV7JuzAAqYcsGjD59/XHgcysFaMyH7euP3POHdAqBn87NZShCfilmQldFkasuSirG33V 8KgWpmNxjJHZ3JyFGX0v5FjF3IqBzcuzwcInTxH6vdiJCrwUUqySZeKFeoQRt2DqWp13 Bo7/q2RQ8uvv8uPRcrQZV0HqQvJlagLwHyOdC+iOXDR6MPOwOOhwPSoaAiWSlH9I8qH7 5zr7J3iXkzp8N4Yf91pal/zRCLVkRmorWQ+TWmxdYbZqVLbpZ9RLjncyk7cKWrf6znYz R65Q== X-Gm-Message-State: APt69E1Olhdl01J240YyyIZsNVl5MsupniNffY6AfUnUyAAdQrSfHT5c YxH+UPuUoH0I1MqORfkaf0E0jIUxUaU/GfdQWfxMug== X-Google-Smtp-Source: ADUXVKJKil3Jt62iZ5TMStrB0I82sQpIKWEiqrBOBs6yebbFQUyb4WsWOu8Es9GAE71/mAx0O5dyb4eeOyb+2/sSKqk= X-Received: by 2002:a5b:64c:: with SMTP id o12-v6mr3655420ybq.460.1529198733921; Sat, 16 Jun 2018 18:25:33 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a25:ef50:0:0:0:0:0 with HTTP; Sat, 16 Jun 2018 18:25:03 -0700 (PDT) In-Reply-To: <20180613140731.GA54540@raichu> References: <201805221435.w4MEZXnW041963@repo.freebsd.org> <20180613140731.GA54540@raichu> From: Eitan Adler Date: Sat, 16 Jun 2018 18:25:03 -0700 Message-ID: Subject: Re: svn commit: r334046 - head/tools/tools/intel-ucode-split To: Mark Johnston Cc: Oliver Pinter , Ed Maste , Sean Bruno , src-committers , "svn-src-all@freebsd.org" , "svn-src-head@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jun 2018 01:25:35 -0000 On 13 June 2018 at 07:07, Mark Johnston wrote: > On Wed, Jun 13, 2018 at 01:46:34AM +0200, Oliver Pinter wrote: >> On Wednesday, June 13, 2018, Ed Maste wrote: >> >> > On Tue, 12 Jun 2018 at 18:17, Sean Bruno wrote: >> > > >> > > On 06/12/18 16:05, Oliver Pinter wrote: >> > > > On 5/22/18, Ed Maste wrote: >> > > >> Author: emaste >> > > >> Date: Tue May 22 14:35:33 2018 >> > > >> New Revision: 334046 >> > > >> URL: https://svnweb.freebsd.org/changeset/base/334046 >> > > >> >> > > >> Log: >> > > >> intel-ucode-split: add -n flag to skip creating output files >> > > >> >> > > >> Sponsored by: The FreeBSD Foundation >> > > >> >> > > >> Modified: >> > > >> head/tools/tools/intel-ucode-split/intel-ucode-split.c >> > > > >> > > > Hi! >> > > > >> > > > Could you please MFC the intel-ucode-split related commits to >> > 11-STABLE? >> > > > >> > > > Thanks, >> > > > op >> > > >> > > Do you need it in base for some reason? This code is already in the >> > > devcpu-data port and is used when the port is built. Its not needed for >> > > anything AFAIK. >> > >> > Indeed, the real use in FreeBSD is via the devcpu-data port; I >> > committed it to src/tools/ for collaboration and testing. I'll merge >> > it to stable/11 if it will be useful for someone, but am curious about >> > the use case. >> > >> >> >> I'm considering to write an in kernel microcode update facility, based on >> firmware(9), and in first idea it would be nice during the generation of >> firmware modules. > > FWIW, I'm working on this for 12.0 and was planning to describe my > proposal on -arch in the next couple of weeks. For my purposes at > least, firmware(9) isn't suitable. We'd like to ensure that updates are > applied before the kernel does CPU identification, and that happens > quite early during boot. This places some constraints on the > implementation which exclude firmware(9). Naive question, knowing nothing about firmware(9), but why can't it be enhanced to work that early? It seems there might be other use-cases for very-early-boot firmware application. -- Eitan Adler