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charset=US-ASCII Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: Mcv6CKXPe7SO-g9FttUG5uGGA5JnY7g8 X-Proofpoint-GUID: Mcv6CKXPe7SO-g9FttUG5uGGA5JnY7g8 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE1MDM0MSBTYWx0ZWRfXz4fOWvRh2VXi DBwqxAR9A3J9QhNDoFMu9AZPHFEh1mPWga/46i6EetouvC/7QK5UVdDVZLjEbQqyu+ZXNECb5gM I8Zx44hnnqYOxAUFW5ktEIIeDwdykBs= X-Authority-Analysis: v=2.4 cv=As97T+9P c=1 sm=1 tr=0 ts=6aa9d321 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=aNnz9XPx1a4JIXSYt2cE/A==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=Ikd4Dj_1AAAA:8 a=EUspDBNiAAAA:8 a=h35TsNJSbmzmzvWWgmEA:9 a=CjuIK1q_8ugA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE1MDM0MSBTYWx0ZWRfXwTjTKiVg/im/ N9A1cHyWSc48idyyiutf+4Inrz3iq1Ga+f+CSCL+crxWGFxr/MxQBMGfuJyGyxGbfgCPNk5l1Sb 5YVjWLppzYxYMghVNRDEWdgLeH9aoWrgt342NT7pXiEIzlEwGOiHCuCVjEOevvr0qzRfoxnHOBy N1p8FtNRAOeT17dmLDQG1aq5oNBDjCLpw5W90T0pHYcbmipNQn7aXptS0Y8/xZHhkw4uXczGlYd NEgmPKMbDc+bMrlvWL6HtMlU1KgHzEqK9gR+8JJgmecsYL5AGdh9MnC4fV+PCP3GCryRmvFHgUV /fclyluqEMfo03W9qiobNDmGriYjt5SmOrXiRb2AvKuXE5uEh+xl4bSmkQhKVmPBZk9Uy1pPnpI KxQ+rGtf7GpM3WNe4XNhVvFRyXlsaWUVMHkLHDaO+C8xRWY2M3vYcetCppeKWcI8hvf95cF8/N2 H05WcG+KEn8/cB7vEjw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-15_05,2026-09-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 bulkscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609150341 On Tue, 15 Sep 2026 09:38:22 -0700 Nicolin Chen wrote: > For a PRI-enabled master, convert every PRIQ entry into an iopf_fault and > report it through iommu_report_device_fault(). > > For an unknown StreamID or a master without PRI enabled, keep the existing > LAST-page DENY path. Merge its two messages into one ratelimited line so a > faulty device cannot flood the kernel log. > > Discard any PASID Stop Marker (LRW = 0b100) prior to the fault report and > the DENY fallback both, because a Stop Marker does not expect a response. > The IOPF infrastructure requires the driver to discard it, as per the doc > at iommu_report_device_fault(). This also matches the intel-iommu code. > > When SSV is clear, the same LRW encoding is a PRI Page Request that expects > a response, so let it fall through. > > Note that master->pri_enabled will only be set by a later change, once all > the PRI paths are ready. > > Co-developed-by: Barak Biber > Signed-off-by: Barak Biber > Co-developed-by: Stefan Kaestle > Signed-off-by: Stefan Kaestle > Signed-off-by: Malak Marrid > Signed-off-by: Nicolin Chen Reviewed-by: Jonathan Cameron