{"id":2233166,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2233166/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260505200510.2954-7-alifm@linux.ibm.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.2/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260505200510.2954-7-alifm@linux.ibm.com>","list_archive_url":null,"date":"2026-05-05T20:05:09","name":"[v15,6/7] vfio/pci: Add a reset_done callback for vfio-pci driver","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"7315297e95d4cb932fd136822eb3210b6072f91e","submitter":{"id":73785,"url":"http://patchwork.ozlabs.org/api/1.2/people/73785/?format=json","name":"Farhan Ali","email":"alifm@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260505200510.2954-7-alifm@linux.ibm.com/mbox/","series":[{"id":502892,"url":"http://patchwork.ozlabs.org/api/1.2/series/502892/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=502892","date":"2026-05-05T20:05:06","name":"Error recovery for vfio-pci devices on s390x","version":15,"mbox":"http://patchwork.ozlabs.org/series/502892/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2233166/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2233166/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=s+K+Mxcc;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; 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c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:in-reply-to:message-id\n\t:mime-version:references:subject:to; s=pp1; bh=HZIwTW1oOFUsiUCSp\n\tEO91NJ3o0zlBjIUbldT7Oqbc5g=; b=s+K+Mxcc3fY4Tvkd0t6IUqTEpR9tfCHbE\n\tGsjFOroXF7Q6LtXkfGDt0p+VKExNwlItZ0tnQ6K6e1voeXuKwsbwtmdOWTR5XxSB\n\tMXOA3VwLLzWn8gVjChScOOmivCP60ziuYdwa6mZU1uHaYYZ8JeiWbuvOc0toezAT\n\tibBJwAlLU4T2S1SvHd0KZtSAUwoiaGTCq0tlkAqrBhjaJL48nP60q+AUIS0DF2n/\n\tirXEbqunKYzZgDxpf6cIQ16J1rIPa1zTrU4SPq4R3+dr6GZOIylQLP6nh4CzOZvL\n\tZMu6wKuoXfBzwKmTjr3KaRsTvY2f8AddlnpFbs2o1UKLL5pe4W0dA==","From":"Farhan Ali ","To":"linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-pci@vger.kernel.org","Cc":"helgaas@kernel.org, alex@shazbot.org, alifm@linux.ibm.com,\n schnelle@linux.ibm.com, mjrosato@linux.ibm.com,\n Julian Ruess ","Subject":"[PATCH v15 6/7] vfio/pci: Add a reset_done callback for vfio-pci\n driver","Date":"Tue, 5 May 2026 13:05:09 -0700","Message-ID":"<20260505200510.2954-7-alifm@linux.ibm.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260505200510.2954-1-alifm@linux.ibm.com>","References":"<20260505200510.2954-1-alifm@linux.ibm.com>","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-TM-AS-GCONF":"00","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNTA1MDE5MSBTYWx0ZWRfX3mX120J6Q3xL\n Dfi5+s+Jzk12KZNfHRaNu9UO4ybgZDQKtiZSX3ghDeiUOL3a7fneCO8Xy4mTmbQrt5nfydlg9jm\n LzMwam5y8xwPjEt7OBtxxW254e+y3wxUYusoQSX5C4S7W//RPiDl9wYeCfR0KCTvzbfJHXt3OCF\n 6YQ3NCYjLDv2GgdhJigET8T0owE5JDZkPYFUoDqX2yA+hvYXK3Nqq6X+HvT/QnSNG85caskQilg\n GDV4QfemHX+YswlGnPZAcSSegO1ZNq0JPm5Bszdyt33hdGEJ+cDmYpT8jMYTPORqiZmqy95AuMB\n NoWnbE0WZ8Gmp378kkADu3v39X0eN50wYCogfrmXrp5xUiSiKMqB5i3ar0StfeNdzUVemh7x95L\n ZvDy0r4VSpZLhoDhBhTqg/AXcJqSCcTWausUrvNHcoP9lnPik7ROSRPq/dCyWMrlwgzshdEmXIP\n WYHCvABTYtq7loXybMQ==","X-Proofpoint-ORIG-GUID":"mXvRgWpr4PJ_MctRSkRuhMhCef3wRSFk","X-Proofpoint-GUID":"mXvRgWpr4PJ_MctRSkRuhMhCef3wRSFk","X-Authority-Analysis":"v=2.4 cv=ctWrVV4i c=1 sm=1 tr=0 ts=69fa4d7e cx=c_pps\n a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17\n a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=r1p2_3pzAAAA:8\n a=hcTHx3Z5Akp3fEzgVBYA:9 a=r_pkcD-q9-ctt7trBg_g:22","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-05-05_02,2026-04-30_02,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 lowpriorityscore=0 adultscore=0 clxscore=1015\n suspectscore=0 impostorscore=0 spamscore=0 malwarescore=0 phishscore=0\n bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound\n adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000\n definitions=main-2605050191"},"content":"On error recovery for a PCI device bound to vfio-pci driver, we want to\nrecover the state of the device to its last known saved state. The callback\nrestores the state of the device to its initial saved state.\n\nReviewed-by: Julian Ruess \nReviewed-by: Niklas Schnelle \nAcked-by: Alex Williamson \nReviewed-by: Matthew Rosato \nSigned-off-by: Farhan Ali \n---\n drivers/vfio/pci/vfio_pci_core.c | 12 ++++++++++++\n 1 file changed, 12 insertions(+)","diff":"diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c\nindex f47a49ca67fa..6358b59fab2b 100644\n--- a/drivers/vfio/pci/vfio_pci_core.c\n+++ b/drivers/vfio/pci/vfio_pci_core.c\n@@ -2255,6 +2255,17 @@ pci_ers_result_t vfio_pci_core_aer_err_detected(struct pci_dev *pdev,\n }\n EXPORT_SYMBOL_GPL(vfio_pci_core_aer_err_detected);\n \n+static void vfio_pci_core_aer_reset_done(struct pci_dev *pdev)\n+{\n+\tstruct vfio_pci_core_device *vdev = dev_get_drvdata(&pdev->dev);\n+\n+\tif (!vdev->pci_saved_state)\n+\t\treturn;\n+\n+\tpci_load_saved_state(pdev, vdev->pci_saved_state);\n+\tpci_restore_state(pdev);\n+}\n+\n int vfio_pci_core_sriov_configure(struct vfio_pci_core_device *vdev,\n \t\t\t\t int nr_virtfn)\n {\n@@ -2319,6 +2330,7 @@ EXPORT_SYMBOL_GPL(vfio_pci_core_sriov_configure);\n \n const struct pci_error_handlers vfio_pci_core_err_handlers = {\n \t.error_detected = vfio_pci_core_aer_err_detected,\n+\t.reset_done = vfio_pci_core_aer_reset_done,\n };\n EXPORT_SYMBOL_GPL(vfio_pci_core_err_handlers);\n \n","prefixes":["v15","6/7"]}