From nobody Wed Apr 24 23:09:45 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 16420706052551020.6365148597295; Thu, 13 Jan 2022 02:43:25 -0800 (PST) Received: from localhost ([::1]:38328 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n7xZj-0005t8-Rp for importer@patchew.org; Thu, 13 Jan 2022 05:43:23 -0500 Received: from eggs.gnu.org ([209.51.188.92]:48346) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7xVd-0003Z5-OG for qemu-devel@nongnu.org; Thu, 13 Jan 2022 05:39:10 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:47251) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n7xVO-0001N2-Q8 for qemu-devel@nongnu.org; Thu, 13 Jan 2022 05:38:56 -0500 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-216-WxbiTBOjPcil0g2DhtMkuA-1; Thu, 13 Jan 2022 05:38:49 -0500 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 4807E101AFA7; Thu, 13 Jan 2022 10:38:48 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.192.96]) by smtp.corp.redhat.com (Postfix) with ESMTP id DA49F7314D; Thu, 13 Jan 2022 10:38:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1642070330; 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=i0jgEfkU+2Qxyc6A/ImskrWp6UtpMqY+uw4RY8gJJoc=; b=S7mv2BpVxNwn8jWVxv3Wbj+v3Vh4uoKEeKgCJLTiv4sjL/UrFdlvXrpwsmAecvWXYRuVJ5 IrN3H8PQXvb5SznFivNI6Ckw+NfOnlGq5lZRVGNrFWIZz6HhZyUNIyO+vTWy0QY3/6206k CqUDv3YcDLenMzrCpyoVy0ec1nTUs0k= X-MC-Unique: WxbiTBOjPcil0g2DhtMkuA-1 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 2/2] hw/vfio/common: Silence ram device offset alignment error traces Date: Thu, 13 Jan 2022 11:37:57 +0100 Message-Id: <20220113103757.2801389-3-eric.auger@redhat.com> In-Reply-To: <20220113103757.2801389-1-eric.auger@redhat.com> References: <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 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1642070607459100001 Content-Type: text/plain; charset="utf-8" Failing to DMA MAP a ram_device should not cause an error message. This is currently happening with the TPM CRB command region and this is causing confusion. We may want to keep the trace for debug purpose though. Signed-off-by: Eric Auger Tested-by: Stefan Berger --- I am not totally clear why we do not fail on the non RAM device case though. --- hw/vfio/common.c | 15 ++++++++++++++- hw/vfio/trace-events | 1 + 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 080046e3f5..9caa560b07 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -884,7 +884,20 @@ static void vfio_listener_region_add(MemoryListener *l= istener, if (unlikely((section->offset_within_address_space & ~qemu_real_host_page_mask) !=3D (section->offset_within_region & ~qemu_real_host_page_mas= k))) { - error_report("%s received unaligned region", __func__); + if (memory_region_is_ram_device(section->mr)) { /* just debug purp= ose */ + trace_vfio_listener_region_add_bad_offset_alignment( + memory_region_name(section->mr), + section->offset_within_address_space, + section->offset_within_region, qemu_real_host_page_size); + } else { /* error case we don't want to be fatal */ + error_report("%s received unaligned region %s iova=3D0x%"PRIx64 + " offset_within_region=3D0x%"PRIx64 + " qemu_real_host_page_mask=3D0x%"PRIx64, + __func__, memory_region_name(section->mr), + section->offset_within_address_space, + section->offset_within_region, + qemu_real_host_page_mask); + } return; } =20 diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 0ef1b5f4a6..ccd9d7610d 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -100,6 +100,7 @@ vfio_listener_region_add_skip(uint64_t start, uint64_t = end) "SKIPPING region_add vfio_spapr_group_attach(int groupfd, int tablefd) "Attached groupfd %d to = liobn fd %d" vfio_listener_region_add_iommu(uint64_t start, uint64_t end) "region_add [= iommu] 0x%"PRIx64" - 0x%"PRIx64 vfio_listener_region_add_ram(uint64_t iova_start, uint64_t iova_end, void = *vaddr) "region_add [ram] 0x%"PRIx64" - 0x%"PRIx64" [%p]" +vfio_listener_region_add_bad_offset_alignment(const char *name, uint64_t i= ova, uint64_t offset_within_region, uint64_t page_size) "Region \"%s\" @0x%= "PRIx64", offset_within_region=3D0x%"PRIx64", qemu_real_host_page_mask=3D0x= %"PRIx64 " cannot be mapped for DMA" vfio_listener_region_add_no_dma_map(const char *name, uint64_t iova, uint6= 4_t size, uint64_t page_size) "Region \"%s\" 0x%"PRIx64" size=3D0x%"PRIx64"= is not aligned to 0x%"PRIx64" and cannot be mapped for DMA" vfio_listener_region_del_skip(uint64_t start, uint64_t end) "SKIPPING regi= on_del 0x%"PRIx64" - 0x%"PRIx64 vfio_listener_region_del(uint64_t start, uint64_t end) "region_del 0x%"PRI= x64" - 0x%"PRIx64 --=20 2.26.3