From nobody Tue Nov 26 14:39:14 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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 1707312870874912.0972638330577; Wed, 7 Feb 2024 05:34:30 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rXi4C-0006j0-7C; Wed, 07 Feb 2024 08:34:20 -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 1rXi49-0006hC-Nk for qemu-devel@nongnu.org; Wed, 07 Feb 2024 08:34:17 -0500 Received: from gandalf.ozlabs.org ([150.107.74.76]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rXi47-0008QI-OM for qemu-devel@nongnu.org; Wed, 07 Feb 2024 08:34:17 -0500 Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4TVLgT5H73z4x0t; Thu, 8 Feb 2024 00:34:13 +1100 (AEDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4TVLgR6pGtz4x0m; Thu, 8 Feb 2024 00:34:11 +1100 (AEDT) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Alex Williamson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH 07/14] vfio: Add Error** argument to vfio_devices_dma_logging_stop() Date: Wed, 7 Feb 2024 14:33:40 +0100 Message-ID: <20240207133347.1115903-8-clg@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240207133347.1115903-1-clg@redhat.com> References: <20240207133347.1115903-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=150.107.74.76; envelope-from=SRS0=zwZg=JQ=redhat.com=clg@ozlabs.org; helo=gandalf.ozlabs.org X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1707312872622100001 This improves error reporting in the log_global_stop() VFIO handler. Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/vfio/common.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index a5d53e67efaa921e89ad918390a22506c7b1ed66..82173b039c47150f5edd05d3291= 92c5b9c8a9a0f 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -938,12 +938,14 @@ static void vfio_dirty_tracking_init(VFIOContainerBas= e *bcontainer, memory_listener_unregister(&dirty.listener); } =20 -static void vfio_devices_dma_logging_stop(VFIOContainerBase *bcontainer) +static int vfio_devices_dma_logging_stop(VFIOContainerBase *bcontainer, + Error **errp) { uint64_t buf[DIV_ROUND_UP(sizeof(struct vfio_device_feature), sizeof(uint64_t))] =3D {}; struct vfio_device_feature *feature =3D (struct vfio_device_feature *)= buf; VFIODevice *vbasedev; + int ret =3D 0; =20 feature->argsz =3D sizeof(buf); feature->flags =3D VFIO_DEVICE_FEATURE_SET | @@ -955,11 +957,17 @@ static void vfio_devices_dma_logging_stop(VFIOContain= erBase *bcontainer) } =20 if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { - warn_report("%s: Failed to stop DMA logging, err %d (%s)", - vbasedev->name, -errno, strerror(errno)); + /* Keep first error */ + if (!ret) { + ret =3D -errno; + error_setg(errp, "%s: Failed to stop DMA logging, err %d (= %s)", + vbasedev->name, -errno, strerror(errno)); + } } vbasedev->dirty_tracking =3D false; } + + return ret; } =20 static struct vfio_device_feature * @@ -1068,7 +1076,8 @@ static int vfio_devices_dma_logging_start(VFIOContain= erBase *bcontainer, =20 out: if (ret) { - vfio_devices_dma_logging_stop(bcontainer); + /* Ignore the potential errors when doing rollback */ + vfio_devices_dma_logging_stop(bcontainer, NULL); } =20 vfio_device_feature_dma_logging_start_destroy(feature); @@ -1102,7 +1111,7 @@ static void vfio_listener_log_global_stop(MemoryListe= ner *listener, int ret =3D 0; =20 if (vfio_devices_all_device_dirty_tracking(bcontainer)) { - vfio_devices_dma_logging_stop(bcontainer); + ret =3D vfio_devices_dma_logging_stop(bcontainer, errp); } else { ret =3D vfio_container_set_dirty_page_tracking(bcontainer, false, = errp); } --=20 2.43.0