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charset="UTF-8" Content-Transfer-Encoding: quoted-printable Date: Wed, 20 May 2026 21:41:34 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=ffCdDUQF c=1 sm=1 tr=0 ts=6a0e0eae cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=44QhMs_dmAmquC8nOFQA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: 5rL9WE69ec-wGn0VTizgxjOrjXPvJujv X-Proofpoint-GUID: 5rL9WE69ec-wGn0VTizgxjOrjXPvJujv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIwMDE5MiBTYWx0ZWRfX8daGPRjmyHsp A8OOFT9a0YhzqNHmQFkERVQoKLs+niHeJ2UXpu0kurQUBrjKCrkDq6Pchi5JpqgyTWvyZN/ZeGC V2v2wsPsaLqIpXUlBOLn2dmfDyL/dSBYsRlrLn7r1s1xHp8+XoQYqbjNtzdz1V485OI7+//TfdF EUrcVanh65WkR2d8qzpGaGtrokC+Q6A6H+ezm3x97PtVPIC+7ZMuPwSGsPEbdWBju3oueVbNZDy C9rb+Rx6tlhgaj78o7nGEAdkpWSgjUs4G3PbrAzKLFg8y9PKgqp325aLHWHI4LmNncO5gOcVFHD QU7qzT2m3LOlPuusHVREChq/YZyqAPxdf0fK1hhl16rQtJW7PIC836ZpkvlMbhK0Y1CXwDVC3VG Xk+YfMhz26G67Xiwvc07Oyh1HD2qxKpNVrxiIuFKRqWPOPb5u4Z8NmdNtjkIMkVVGk/bbRIFlYV /+v+CL7FqydsYqdrupw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-20_03,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 spamscore=0 phishscore=0 suspectscore=0 adultscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605200192 On Wed, 2026-05-20 at 10:11 -0700, Farhan Ali wrote: > For a passthrough device we need co-operation from user space to recover > the device. This would require to bubble up any error information to user > space. Let's store this error information for passthrough devices, so it > can be retrieved later. >=20 > We can now have userspace drivers (vfio-pci based) on s390x. The userspac= e > drivers will not have any KVM fd and so no kzdev associated with them. So > we need to update the logic for detecting passthrough devices to not depe= nd > on struct kvm_zdev. >=20 > Reviewed-by: Matthew Rosato > Signed-off-by: Farhan Ali > --- > arch/s390/include/asm/pci.h | 30 ++++++++ > arch/s390/pci/pci.c | 1 + > arch/s390/pci/pci_event.c | 116 +++++++++++++++++-------------- > drivers/vfio/pci/vfio_pci_zdev.c | 18 ++++- > 4 files changed, 111 insertions(+), 54 deletions(-) >=20 Looks good to me now and I do think the zpci_store_pci_error() makes the code easier to read and gives a clear destinction for mediated recovery mode. Oh and Sashiko just came back with no issues found too. Feel free to add my: Reviewed-by: Niklas Schnelle Thanks, Niklas