From patchwork Thu Jan 13 10:37:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 12712553 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 3CB08C433F5 for ; Thu, 13 Jan 2022 10:42:37 +0000 (UTC) Received: from localhost ([::1]:37234 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n7xYx-00055N-UT for qemu-devel@archiver.kernel.org; Thu, 13 Jan 2022 05:42:35 -0500 Received: from eggs.gnu.org ([209.51.188.92]:48306) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7xVG-0003Mo-5r for qemu-devel@nongnu.org; Thu, 13 Jan 2022 05:38:46 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:57156) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7xVD-0001Md-Ih for qemu-devel@nongnu.org; Thu, 13 Jan 2022 05:38:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1642070316; 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=OaPsqOCuBvvIjmQSGGUp5T72NJtZ/DzuEbf1kU2tV04=; b=UdrDbiJzbil9L4OKqUQlMwLoTB7/b4yU9MrxdlumgMV8LNqcOLWbRM383TzojdCaIj7dEL nHrYqnOCv2LtS5JM00fJboIymgj7N/nxeFKYhgavkq8B/ItfCZBbzDCLC3kAzJactvyXS/ SumY/+iOLDS16xnj3naeXgZfqpmMRmo= 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-526-h8DWxDByPsyJtOLshyBNVw-1; Thu, 13 Jan 2022 05:38:33 -0500 X-MC-Unique: h8DWxDByPsyJtOLshyBNVw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6D5B73482D; Thu, 13 Jan 2022 10:38:32 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.192.96]) by smtp.corp.redhat.com (Postfix) with ESMTP id 726F173152; Thu, 13 Jan 2022 10:37:59 +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 0/2] TPM-CRB: Remove spurious error report when used with VFIO Date: Thu, 13 Jan 2022 11:37:55 +0100 Message-Id: <20220113103757.2801389-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 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=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.594, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: cohuck@redhat.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 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 severity on VFIO side. Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/tpm-crb-ram-device-v1 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/meson.build | 2 +- hw/tpm/tpm_crb.c | 10 ++++++++-- hw/vfio/common.c | 15 ++++++++++++++- hw/vfio/trace-events | 1 + 4 files changed, 24 insertions(+), 4 deletions(-)