From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 92A6321A04823 for ; Mon, 1 May 2017 10:15:49 -0700 (PDT) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP; 01 May 2017 10:15:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.37,401,1488873600"; d="scan'208";a="1142305242" Received: from pguermon-mobl3.ger.corp.intel.com (HELO localhost) ([10.255.77.18]) by fmsmga001.fm.intel.com with ESMTP; 01 May 2017 10:15:46 -0700 MIME-Version: 1.0 To: Laszlo Ersek , edk2-devel-01 Message-ID: <149365894632.25909.11739243410891079091@jljusten-skl> From: Jordan Justen In-Reply-To: Cc: Gary Ching-Pang Lin References: <20170429201500.18496-1-lersek@redhat.com> <20170429201500.18496-3-lersek@redhat.com> <149351328512.20670.1563878734495138189@jljusten-skl> <030f8312-35ce-5c86-205c-2ee6c0b5ab8b@redhat.com> <149358697668.23065.6363402854761002239@jljusten-skl> User-Agent: alot/0.5.1 Date: Mon, 01 May 2017 10:15:46 -0700 Subject: Re: [PATCH 2/3] OvmfPkg: introduce FD_SIZE_4MB (mainly) for Windows HCK X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 May 2017 17:15:49 -0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On 2017-05-01 03:51:42, Laszlo Ersek wrote: > On 04/30/17 23:16, Jordan Justen wrote: > > What are the chances > > that 248k will cover it? Unfortunately (or fortunately), no one I've > > asked seem to know of any plans for the requirement to increase beyond > > 120k. > = > Again, I agree this is a valid concern; there's no way to guarantee > 248KB will be enough for 7 years (I keep saying 7 years, that's > important to me, others might care about a different time frame). > = > Given that 120-128KB has gone from "generous" to "required" in 2.5 > years, I feel that providing 248KB for the next 7 years (thereby more > than quadrupling OVMF's current offer) is the low water mark for "prudent= ". Since we are trying to predict the future, I don't think we should stop just shy of a power-of-two. I don't know where the 120k number comes from, but I don't think we should bet on the next power-of-two minus 8k. Regarding the event log, it has been ignored in OVMF, but I'd like to ask around a bit to see if it could be useful to have more than 4k. > If you'd like us to go, say, 504KB live varstore, 1MB NV, and 5MB or 6MB > total, I'm game. Uh, no. I'd rather go with 128k, and I'd also rather stay with 2MB. :) -Jordan