From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by spool.mail.gandi.net (Postfix) with ESMTPS id 73BDBAC0C5E for ; Wed, 31 Jan 2024 08:14:33 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=hoErqkKKLw4iXFSlnHBKAnKUnvOEyrbtJaflYed9y54=; c=relaxed/simple; d=groups.io; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:In-Reply-To:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Type:Content-Disposition; s=20140610; t=1706688872; v=1; b=ovpTwEVUBoxuzLdqATpbYvvIZwb7HixY/jVmI5tKzj9PT2bJetQRnVxWs0OswPPkiL+qLYf3 Vt8LNk68BCgIKds30/x97MIZqcYRAq2DMGWfA0Af0Ytd53NvF2OECmYWu9UhYkJHU1vyGnjFpON MDWPjX5nv35HszmhphL31t1w= X-Received: by 127.0.0.2 with SMTP id DOD3YY7687511x4lJ4w9H4nj; Wed, 31 Jan 2024 00:14:32 -0800 X-Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mx.groups.io with SMTP id smtpd.web11.9705.1706688871253298244 for ; Wed, 31 Jan 2024 00:14:31 -0800 X-Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-370-WJrJyfnwMqe5DuC8iaBdAA-1; Wed, 31 Jan 2024 03:14:23 -0500 X-MC-Unique: WJrJyfnwMqe5DuC8iaBdAA-1 X-Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A7CAF2815E2A; Wed, 31 Jan 2024 08:14:22 +0000 (UTC) X-Received: from sirius.home.kraxel.org (unknown [10.39.192.243]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 357ED3C2E; Wed, 31 Jan 2024 08:14:22 +0000 (UTC) X-Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id F203F1800DC4; Wed, 31 Jan 2024 09:14:20 +0100 (CET) Date: Wed, 31 Jan 2024 09:14:20 +0100 From: "Gerd Hoffmann" To: Laszlo Ersek Cc: Pedro Falcato , devel@edk2.groups.io, Erdem Aktas , Oliver Steffen , Jiewen Yao , Ard Biesheuvel , Min Xu , Tom Lendacky , Michael Roth , Liming Gao Subject: Re: [edk2-devel] [PATCH v2 3/5] OvmfPkg/ResetVector: improve page table flag names Message-ID: References: <20240130123204.764453-1-kraxel@redhat.com> <20240130123204.764453-4-kraxel@redhat.com> <69c99682-80b5-274d-4f8e-c8c8f4ed5e7a@redhat.com> MIME-Version: 1.0 In-Reply-To: <69c99682-80b5-274d-4f8e-c8c8f4ed5e7a@redhat.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,kraxel@redhat.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: 8OPRHHKKPawj7oAIUJjFSp7dx7686176AA= Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=ovpTwEVU; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=redhat.com (policy=none); spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io Hi, > > Technically, if we want to be pedantic, these are PDPTEs (or PDPs I > > guess), so PDE is misleading here. > > I remembered the fact that the SDM used different terms for different > table levels, but honestly, I've never been able to keep all those in my > mind for longer than 5 minutes. I recall them as fairly arbitrary. The names made sense back in the 90-ies when we had only two or three (with PAE) paging levels on x86. Nowdays with up to 5 levels not so much. I likewise can't remember all the names, so I very much prefer to work with level numbers. The bits for the lowest level are slightly different from all levels above, and I've used the level 1 + level 2 names (page table entry and page directory entry) to name them. take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#114866): https://edk2.groups.io/g/devel/message/114866 Mute This Topic: https://groups.io/mt/104052210/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-