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GET /api/patches/2217839/?format=api
{ "id": 2217839, "url": "http://patchwork.ozlabs.org/api/patches/2217839/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260330174011.1161-7-alifm@linux.ibm.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "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": "<20260330174011.1161-7-alifm@linux.ibm.com>", "list_archive_url": null, "date": "2026-03-30T17:40:10", "name": "[v12,6/7] 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/people/73785/?format=api", "name": "Farhan Ali", "email": "alifm@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260330174011.1161-7-alifm@linux.ibm.com/mbox/", "series": [ { "id": 498071, "url": "http://patchwork.ozlabs.org/api/series/498071/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=498071", "date": "2026-03-30T17:40:08", "name": "Error recovery for vfio-pci devices on s390x", "version": 12, "mbox": "http://patchwork.ozlabs.org/series/498071/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2217839/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2217839/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-51485-incoming=patchwork.ozlabs.org@vger.kernel.org>", "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=s0IBOdyV;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::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=Hn/Vjkeac+whHfM35\n\tQQdZ0Xk4r5QnW9zqV2bRKPxP2k=; b=s0IBOdyVHHdP3MiqXqC8OhHYmrDNiRXps\n\toi4iRWMSfWpqRYVDAf9GYwzaNTmULZekrlxGvRaAjI+3oWwsM1/nzVzmr6JiTzni\n\ttAzb+oc7zw9kS55EaiaFG9yW6qQez84migV/EwiTIBR6cLv7NDOhEtVGqyfD7iuv\n\tBzskXWGElfpd9zsw9kNS6B/BXGD25r1amAGdlHH95m5nPNfLsboYfhww6s88G6DX\n\txH5xk8tn0dHK3nypN9+VBYJrvxCJ9eiIHAqvYqTG6+uAu02WY3hI0CTbkDERVCdU\n\tGcQKqiPa8XMsa+J8JiTnIQtv6TrWd8O1+RA8+WS006s7JdnJ3vFag==", "From": "Farhan Ali <alifm@linux.ibm.com>", "To": "linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-pci@vger.kernel.org", "Cc": "helgaas@kernel.org, lukas@wunner.de, alex@shazbot.org, clg@redhat.com,\n kbusch@kernel.org, alifm@linux.ibm.com, schnelle@linux.ibm.com,\n mjrosato@linux.ibm.com, Julian Ruess <julianr@linux.ibm.com>", "Subject": "[PATCH v12 6/7] vfio/pci: Add a reset_done callback for vfio-pci\n driver", "Date": "Mon, 30 Mar 2026 10:40:10 -0700", "Message-ID": "<20260330174011.1161-7-alifm@linux.ibm.com>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260330174011.1161-1-alifm@linux.ibm.com>", "References": "<20260330174011.1161-1-alifm@linux.ibm.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Authority-Analysis": "v=2.4 cv=J6enLQnS c=1 sm=1 tr=0 ts=69cab585 cx=c_pps\n a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17\n a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=r1p2_3pzAAAA:8\n a=hcTHx3Z5Akp3fEzgVBYA:9 a=r_pkcD-q9-ctt7trBg_g:22", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMzMwMDE0MSBTYWx0ZWRfX5TReCklgnDoq\n aTjLnTv9p6zskaLSZdPa/ms4kgMCiQrCT+GxuwrCs2WycxrKE8JXUzxJzNyk0IJerpC/RtUMN/Z\n s2SLketo9H3HO3hhz1pvgOQS5wYuOKHzZFrnpXO7nxnQSXcz+qIxmYEuMqUtMt/+e4IBJSi8eSp\n bBTf7hiwHzDheHbgBDOCaSpT5qD7zPAJfAnRM7eFG8N45fZWUHpOoTt4krW7EYrHyP/AoQhiYTq\n 10JE1V3FZcfx4nEzSTJduo3J4BAcEnyQeskIm1bcXHA3Npj96wKzNaM64XAXiW1m1fJ5QcI+lVW\n p0MRWs/aZZdAC1zw1cAQ4CoXR8pDlkmvM7ASv+ewbfDJ0AY33RVdqB682aEqLN3EWb0cKS7tdXD\n 1ssEMEESY05MTqA1g+7pKX0/QlV24sG88doi4FWFOTXLvRH9GMAr82xxqWiaKF/YyNKv0llDKKH\n 7M/IURwKv7OqevTuG6A==", "X-Proofpoint-GUID": "GnhA2mP7a_3IrJQaviWvTQCxzzDuDoKz", "X-Proofpoint-ORIG-GUID": "GnhA2mP7a_3IrJQaviWvTQCxzzDuDoKz", "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=2026-03-29_05,2026-03-28_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n suspectscore=0 clxscore=1015 adultscore=0 priorityscore=1501 bulkscore=0\n phishscore=0 malwarescore=0 lowpriorityscore=0 spamscore=0 impostorscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603300141" }, "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 <julianr@linux.ibm.com>\nReviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>\nSigned-off-by: Farhan Ali <alifm@linux.ibm.com>\nAcked-by: Alex Williamson <alex@shazbot.org>\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 bbdb625e35ef..f1bd1266b88f 100644\n--- a/drivers/vfio/pci/vfio_pci_core.c\n+++ b/drivers/vfio/pci/vfio_pci_core.c\n@@ -2257,6 +2257,17 @@ 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@@ -2321,6 +2332,7 @@ 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": [ "v12", "6/7" ] }