{"id":2197366,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2197366/?format=json","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.0/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},"msgid":"<20260217182257.1582-9-alifm@linux.ibm.com>","date":"2026-02-17T18:22:56","name":"[v9,8/9] vfio: 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/1.0/people/73785/?format=json","name":"Farhan Ali","email":"alifm@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260217182257.1582-9-alifm@linux.ibm.com/mbox/","series":[{"id":492470,"url":"http://patchwork.ozlabs.org/api/1.0/series/492470/?format=json","date":"2026-02-17T18:22:49","name":"Error recovery for vfio-pci devices on s390x","version":9,"mbox":"http://patchwork.ozlabs.org/series/492470/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2197366/checks/","tags":{},"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=FrBmF62C;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; 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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=S6CRg4XI/HP2JPfFX\n\tQTrwNGbnRuOd4l4vQum+Ps0JjY=; b=FrBmF62CB101CuwF3ZRsEfLWsiEE/c+q7\n\ttGydGOmbCI2e245jIti2SP1LJarxknd82U+f83/HZjx7s0BKMVbFvZW2jgtpVZ8h\n\tfhaFGjZGZK/z+ThOmE4W7N29B76Px8i0i3hpQKYSRgDLh++GaPH2/5SNsEe4+aFj\n\tLBjX2Dl5KmDHmiqgY40OSZ37a0x8ZDFmjdsNyrebqWVkMxFdLCsOTbV2+7gb6vDc\n\tZfRi84VBOFOcB8rCn5lq+GKhstSa82/Iq5laEAqiL62sdB+9sVy0QJlE5KoO07qc\n\tcuEI70jK5CYKlzpKwD+x88fJ37ADljMYnwULzvG6HTfXh5YKD9/SA==","From":"Farhan Ali ","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 stable@vger.kernel.org, alifm@linux.ibm.com, schnelle@linux.ibm.com,\n mjrosato@linux.ibm.com, Julian Ruess ","Subject":"[PATCH v9 8/9] vfio: Add a reset_done callback for vfio-pci driver","Date":"Tue, 17 Feb 2026 10:22:56 -0800","Message-ID":"<20260217182257.1582-9-alifm@linux.ibm.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260217182257.1582-1-alifm@linux.ibm.com>","References":"<20260217182257.1582-1-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-ORIG-GUID":"j_l0QhMQFpkKMYN00hmld6xWk-H_OX4l","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwMjE3MDE0OCBTYWx0ZWRfX19Tn4qheoodh\n J0vcIMgIhaGVcZ3zMf9iLvUiYFZiIKHa46OHYpthocIF2w6xpfIB/zGtFdDi9vqEO27Bc8k/EEl\n iBp8fexaTSsqDa+H/zFAJVO4fl94bT8hafNh/2JpcVLQExHSI5GBbpdKL4pEm0h2nZEfU3deP59\n +IWmk7CAnlCs4cneHZfozqu9bDJmhYo5COGs2hVLaXClHpOjISnmVgzd+V44DT1idnqdUBkg/RY\n TeTdNZY+4wM9WA/Qz6kE1LYiR7k2cVvwul7oWwDhQnpZqGE/ODhgU9UTc6j17hikjzRqh7z9aE3\n Sr2Gheblu0Fwutyo9z+RMpf/k6tpmcBQtsjUa2rL2k7kdwElJFbNCrQenvVp4EVd5/PWEf4UD3d\n X3kzIEihdruqChukVGeAWNWwQJxqLT224k9UMd6HyXOtQ3dxhxhoIRRaDLQ04WXiecmu95Ra+Bu\n IpuJIZVvIYMFv9CvtMg==","X-Proofpoint-GUID":"j_l0QhMQFpkKMYN00hmld6xWk-H_OX4l","X-Authority-Analysis":"v=2.4 cv=U+mfzOru c=1 sm=1 tr=0 ts=6994b20d cx=c_pps\n a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17\n a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22\n a=GgsMoib0sEa3-_RKJdDe:22 a=VnNF1IyMAAAA:8 a=hcTHx3Z5Akp3fEzgVBYA:9","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-02-17_03,2026-02-16_04,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n clxscore=1015 bulkscore=0 impostorscore=0 malwarescore=0 spamscore=0\n adultscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501\n suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc=\n route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2602170148"},"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 \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 d2cb498c026b..8f7eb3636075 100644\n--- a/drivers/vfio/pci/vfio_pci_core.c\n+++ b/drivers/vfio/pci/vfio_pci_core.c\n@@ -2258,6 +2258,17 @@ 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@@ -2322,6 +2333,7 @@ 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":["v9","8/9"]}