From patchwork Tue Mar 5 18:06:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 13582832 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C5A05C54798 for ; Tue, 5 Mar 2024 18:09:54 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rhZDC-0002Dv-9G; Tue, 05 Mar 2024 13:08:22 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rhZDB-0002Da-70 for qemu-devel@nongnu.org; Tue, 05 Mar 2024 13:08:21 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rhZD9-0000C3-Il for qemu-devel@nongnu.org; Tue, 05 Mar 2024 13:08:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709662099; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qNjqP63Eeycrewa8Jj4wem7P+RbfIAVckxR+16X/ZBA=; b=d5h1PQi3nz0qzbuXawuxhQuLAjx9KcyQaxLojJvgyYUGK3O+fsb0nncTmfVkznZa0PVHwD 2hQRmqV2FmyNv3SlBLjM+AgjlpWJo6kiSQ6diPALBd8Kzk/HFOYT7YAYuFbH/LDt0tM/ke rq4knV1jPHmARg0vKcgK3LOtejsjzLM= 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-680--aDaVVGoM8KqUElj3ow_JA-1; Tue, 05 Mar 2024 13:08:15 -0500 X-MC-Unique: -aDaVVGoM8KqUElj3ow_JA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (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 8EF433C0244F; Tue, 5 Mar 2024 18:08:14 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.193.114]) by smtp.corp.redhat.com (Postfix) with ESMTP id 277F0C041F1; Tue, 5 Mar 2024 18:08:11 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, mst@redhat.com, jean-philippe@linaro.org, imammedo@redhat.com, peter.maydell@linaro.org, clg@redhat.com, yanghliu@redhat.com, zhenzhong.duan@intel.com Cc: alex.williamson@redhat.com, jasowang@redhat.com, pbonzini@redhat.com, berrange@redhat.com Subject: [PATCH v6 9/9] qemu-options.hx: Document the virtio-iommu-pci aw-bits option Date: Tue, 5 Mar 2024 19:06:27 +0100 Message-ID: <20240305180734.48515-10-eric.auger@redhat.com> In-Reply-To: <20240305180734.48515-1-eric.auger@redhat.com> References: <20240305180734.48515-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.568, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Document the new aw-bits option. Signed-off-by: Eric Auger Reviewed-by: Cédric Le Goater --- v4 -> v5 - tweek the aw-bits option description according to Cédric's suggestion --- qemu-options.hx | 3 +++ 1 file changed, 3 insertions(+) diff --git a/qemu-options.hx b/qemu-options.hx index 757df3eac0..87959ede08 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -1180,6 +1180,9 @@ SRST This decides the default granule to be be exposed by the virtio-iommu. If host, the granule matches the host page size. + ``aw-bits=val`` (val between 32 and 64, default depends on machine) + This decides the address width of IOVA address space. It defaults + ERST DEF("name", HAS_ARG, QEMU_OPTION_name,