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b=D2TbManbrwChhTDjrhsy7dXJ+GzNIejR0zxDA8f5ZASDT8UJagOF2QK/rrE/NIs38DdlG6vDugmio1Vn5JpCPvKa/uRNLmbYx12J1/rm1rOen3vPjgUuddZEK37PPkewbGLEfxv1GdP721mAt8LcOrzy396C+XlVH6Snh50yFhwTpIbU2cMTUda7xd4DHBn2U9U/D2uF2QGbwwvOgZJoqC9UqfbAE88Iz1Cgq1/hjb91lFd9o2QiNxfmBHrppWsILvS9wCY83ajZfUgm42c8VSt5Vp0GFX8UDr8s3N5hjZNMm0JDagdc8kJ00ZIhhR4NXgUGHwxejYb0ldxocW0nyQ== From: John Levon To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , John Levon , Thanos Makatos , Paolo Bonzini , Alex Williamson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , John Johnson , Elena Ufimtseva , Jagannathan Raman Subject: [PATCH v5 12/19] vfio-user: implement VFIO_USER_DEVICE_RESET Date: Wed, 25 Jun 2025 20:30:04 +0100 Message-ID: <20250625193012.2316242-13-john.levon@nutanix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250625193012.2316242-1-john.levon@nutanix.com> References: <20250625193012.2316242-1-john.levon@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4P190CA0019.EURP190.PROD.OUTLOOK.COM (2603:10a6:20b:5d0::18) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|PH0PR02MB8535:EE_ X-MS-Office365-Filtering-Correlation-Id: e338a2ff-2009-48c2-2454-08ddb41ecaaf x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|366016|1800799024; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.151.68; envelope-from=john.levon@nutanix.com; helo=mx0a-002c1b01.pphosted.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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1750880086676116600 Content-Type: text/plain; charset="utf-8" Hook this call up to the legacy reset handler for vfio-user-pci. Originally-by: John Johnson Signed-off-by: Elena Ufimtseva Signed-off-by: Jagannathan Raman Signed-off-by: John Levon Reviewed-by: C=C3=A9dric Le Goater --- hw/vfio-user/device.h | 2 ++ hw/vfio-user/device.c | 18 ++++++++++++++++++ hw/vfio-user/pci.c | 15 +++++++++++++++ 3 files changed, 35 insertions(+) diff --git a/hw/vfio-user/device.h b/hw/vfio-user/device.h index 619c0f3140..d183a3950e 100644 --- a/hw/vfio-user/device.h +++ b/hw/vfio-user/device.h @@ -17,6 +17,8 @@ bool vfio_user_get_device_info(VFIOUserProxy *proxy, struct vfio_device_info *info, Error **errp= ); =20 +void vfio_user_device_reset(VFIOUserProxy *proxy); + extern VFIODeviceIOOps vfio_user_device_io_ops_sock; =20 #endif /* VFIO_USER_DEVICE_H */ diff --git a/hw/vfio-user/device.c b/hw/vfio-user/device.c index f01b3925c5..3a118e7361 100644 --- a/hw/vfio-user/device.c +++ b/hw/vfio-user/device.c @@ -54,6 +54,24 @@ bool vfio_user_get_device_info(VFIOUserProxy *proxy, return true; } =20 +void vfio_user_device_reset(VFIOUserProxy *proxy) +{ + Error *local_err =3D NULL; + VFIOUserHdr hdr; + + vfio_user_request_msg(&hdr, VFIO_USER_DEVICE_RESET, sizeof(hdr), 0); + + if (!vfio_user_send_wait(proxy, &hdr, NULL, 0, &local_err)) { + error_prepend(&local_err, "%s: ", __func__); + error_report_err(local_err); + return; + } + + if (hdr.flags & VFIO_USER_ERROR) { + error_printf("reset reply error %d\n", hdr.error_reply); + } +} + static int vfio_user_get_region_info(VFIOUserProxy *proxy, struct vfio_region_info *info, VFIOUserFDs *fds) diff --git a/hw/vfio-user/pci.c b/hw/vfio-user/pci.c index c0f00f15b1..49d12763ab 100644 --- a/hw/vfio-user/pci.c +++ b/hw/vfio-user/pci.c @@ -263,6 +263,20 @@ static void vfio_user_instance_finalize(Object *obj) } } =20 +static void vfio_user_pci_reset(DeviceState *dev) +{ + VFIOPCIDevice *vdev =3D VFIO_PCI_BASE(dev); + VFIODevice *vbasedev =3D &vdev->vbasedev; + + vfio_pci_pre_reset(vdev); + + if (vbasedev->reset_works) { + vfio_user_device_reset(vbasedev->proxy); + } + + vfio_pci_post_reset(vdev); +} + static const Property vfio_user_pci_dev_properties[] =3D { DEFINE_PROP_UINT32("x-pci-vendor-id", VFIOPCIDevice, vendor_id, PCI_ANY_ID), @@ -310,6 +324,7 @@ static void vfio_user_pci_dev_class_init(ObjectClass *k= lass, const void *data) DeviceClass *dc =3D DEVICE_CLASS(klass); PCIDeviceClass *pdc =3D PCI_DEVICE_CLASS(klass); =20 + device_class_set_legacy_reset(dc, vfio_user_pci_reset); device_class_set_props(dc, vfio_user_pci_dev_properties); =20 object_class_property_add(klass, "socket", "SocketAddress", NULL, --=20 2.43.0