From patchwork Thu Mar 7 13:43:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 1909248 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=PX53UqST; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Tr9f82gQ3z23hR for ; Fri, 8 Mar 2024 00:49:52 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riE7H-0006mw-M0; Thu, 07 Mar 2024 08:48:59 -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 1riE4h-0005CJ-TT for qemu-devel@nongnu.org; Thu, 07 Mar 2024 08:46:22 -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 1riE4G-0007NJ-Pw for qemu-devel@nongnu.org; Thu, 07 Mar 2024 08:46:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709819135; 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=mEN4q9jJ+qzM8VxqRYFb6XiPswpU0UkMhMmZLMHWIEU=; b=PX53UqSTwlV4Qd0v3GFv0Xg4F+GBpcMl7WS979d0eBrybsT3Z4A/WQGNbwH8cqfRfyDA68 bVivWwajwg8l1YtqJ83w1ZY9spvQP5ay0ljevJD3SrwV+OCbeVgk33qOAbeEwFLlT6Ke+z UPCIqgjLwAKph7LGr304W713cDCrKIA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-638-cpNTy1V1OpSHpW5y8PXs0g-1; Thu, 07 Mar 2024 08:45:32 -0500 X-MC-Unique: cpNTy1V1OpSHpW5y8PXs0g-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (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 7E352181B20F; Thu, 7 Mar 2024 13:45:27 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.193.114]) by smtp.corp.redhat.com (Postfix) with ESMTP id 56D2517AAC; Thu, 7 Mar 2024 13:45:22 +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 v8 9/9] qemu-options.hx: Document the virtio-iommu-pci aw-bits option Date: Thu, 7 Mar 2024 14:43:10 +0100 Message-ID: <20240307134445.92296-10-eric.auger@redhat.com> In-Reply-To: <20240307134445.92296-1-eric.auger@redhat.com> References: <20240307134445.92296-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 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=-0.583, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Document the new aw-bits option. Signed-off-by: Eric Auger Reviewed-by: Philippe Mathieu-Daudé --- v7 -> v8: - remove "it defaults" - removed Cedric's R-b 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 379792a215..9d49ce9460 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 the IOVA address space. + ERST DEF("name", HAS_ARG, QEMU_OPTION_name,