From patchwork Tue Feb 8 13:38:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 12738923 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 1E37CC433F5 for ; Tue, 8 Feb 2022 15:45:58 +0000 (UTC) Received: from localhost ([::1]:36578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nHSgn-0007zy-59 for qemu-devel@archiver.kernel.org; Tue, 08 Feb 2022 10:45:57 -0500 Received: from eggs.gnu.org ([209.51.188.92]:36822) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nHQiV-0002DD-6L for qemu-devel@nongnu.org; Tue, 08 Feb 2022 08:39:36 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:21514) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nHQiS-0005UJ-L1 for qemu-devel@nongnu.org; Tue, 08 Feb 2022 08:39:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1644327571; 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; bh=6QhtmobnvxyyPAnWSSX1GKmh/XmnBU17JcwocaYEvtU=; b=GKoCngrOiutPJVqI0veXpdcwOIYfUBxRtkkICYENG8m+9C+gLxHkEWZuLR2RYtcL/x6dV+ bxl3bpOz1FAH3xmdEeJ+5phd9E1khVw6MFhaSjUVq/M5x0PR3WFzFi5u+XPdYNMZy2odLZ kW0KAKf2A1l5QBtmrybsA24HioE97AI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-563-u3cf0wsgPhSS6_9C7Ded7Q-1; Tue, 08 Feb 2022 08:39:28 -0500 X-MC-Unique: u3cf0wsgPhSS6_9C7Ded7Q-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A0F66190A7A1; Tue, 8 Feb 2022 13:39:26 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.195.249]) by smtp.corp.redhat.com (Postfix) with ESMTP id 89D8A708F4; Tue, 8 Feb 2022 13:38:47 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, stefanb@linux.vnet.ibm.com, qemu-devel@nongnu.org, alex.williamson@redhat.com Subject: [PATCH v4 0/2] TPM-CRB: Remove spurious error report when used with VFIO Date: Tue, 8 Feb 2022 14:38:40 +0100 Message-Id: <20220208133842.112017-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eric.auger@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Cc: quintela@redhat.com, cohuck@redhat.com, f4bug@amsat.org, dgilbert@redhat.com, imammedo@redhat.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This series aims at removing a spurious error message we get when launching a guest with a TPM-CRB device and VFIO-PCI devices. The CRB command buffer currently is a RAM MemoryRegion and given its base address alignment, it causes an error report on vfio_listener_region_add(). This series proposes to use a ram-device region instead which helps in better assessing the dma map error failure on VFIO side. Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/tpm-crb-ram-device-v4 History: v3 -> v4: - Use PRIxPTR - call vmstate_unregister_ram v2 -> v3: respin by Philippe to remove meson changes v1 -> v2: - added tpm_crb_unrealize (dared to keep Stefan's T-b though) Eric Auger (2): tpm: CRB: Use ram_device for "tpm-crb-cmd" region hw/vfio/common: Silence ram device offset alignment error traces hw/tpm/tpm_crb.c | 23 +++++++++++++++++++++-- hw/vfio/common.c | 15 ++++++++++++++- hw/vfio/trace-events | 1 + 3 files changed, 36 insertions(+), 3 deletions(-)