From patchwork Mon Feb 19 15:43:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kashyap Chamarthy X-Patchwork-Id: 875161 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zlSjy4klcz9s08 for ; Tue, 20 Feb 2018 02:44:54 +1100 (AEDT) Received: from localhost ([::1]:50891 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ennca-0005wL-OZ for incoming@patchwork.ozlabs.org; Mon, 19 Feb 2018 10:44:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57639) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ennc5-0005uQ-SC for qemu-devel@nongnu.org; Mon, 19 Feb 2018 10:44:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ennc0-00087v-P5 for qemu-devel@nongnu.org; Mon, 19 Feb 2018 10:44:21 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:48210 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ennc0-00082Z-KD for qemu-devel@nongnu.org; Mon, 19 Feb 2018 10:44:16 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 26E41FCAF3 for ; Mon, 19 Feb 2018 15:44:00 +0000 (UTC) Received: from eukaryote.localdomain (ovpn-117-200.ams2.redhat.com [10.36.117.200]) by smtp.corp.redhat.com (Postfix) with ESMTP id 15C9C9C047; Mon, 19 Feb 2018 15:43:50 +0000 (UTC) From: Kashyap Chamarthy To: qemu-devel@nongnu.org Date: Mon, 19 Feb 2018 16:43:33 +0100 Message-Id: <20180219154333.20810-1-kchamart@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Mon, 19 Feb 2018 15:44:00 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Mon, 19 Feb 2018 15:44:00 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'kchamart@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH] docs: pcie: Spell out machine type needs for PCIe features X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcel@redhat.com, Kashyap Chamarthy , mst@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" PCIe features are available only via the Q35 machine for x86, or the 'virt' machine type for AArch64 architecture. Mention that explicitly. Thanks: Daniel Berrangé Signed-off-by: Kashyap Chamarthy --- docs/pcie.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/docs/pcie.txt b/docs/pcie.txt index 8d3694970e..3e5bf52e0b 100644 --- a/docs/pcie.txt +++ b/docs/pcie.txt @@ -3,8 +3,14 @@ PCI EXPRESS GUIDELINES 1. Introduction ================ -The doc proposes best practices on how to use PCI Express/PCI device -in PCI Express based machines and explains the reasoning behind them. +The doc proposes best practices on how to use PCI Express (PCIe) / PCI +device in PCI Express based machines and explains the reasoning behind +them. + +This applies to the Q35 machine type on x86 and the 'virt' machine type +on AArch64 (in other words, PCIe features are available only when using +the Q35 and 'virt' machine types for the said architectures). Other +machine types do not use PCI Express at this time. The following presentations accompany this document: (1) Q35 overview.