** Description changed: [Impact] + the previous commit has been SRUed that enable CONFIG_INTEL_IOMMU_DEFAULT_ON. + https://bugs.launchpad.net/subiquity/+bug/1937295 + but it would caused the regression with AMD/NVIDIA GPUs. + https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965882 + https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971146 + + [Fix] + Revert the vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.") + Assign VMD irq domain before enumeration, irq domain comes from pci driver. + + [Test Case] + 1. In BIOS, change to VMD + 2. Check if SKU could boot-up. + + [Where problems could occur] + it reduce the affected region to only VMD.
** Tags added: oem-priority originate-from-1967153 somerville -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1976587 Title: Fix can't boot up after change to vmd Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: New Status in linux-oem-5.17 package in Ubuntu: New Status in linux source package in Focal: New Status in linux-oem-5.14 source package in Focal: In Progress Status in linux-oem-5.17 source package in Focal: New Status in linux source package in Jammy: In Progress Status in linux-oem-5.14 source package in Jammy: New Status in linux-oem-5.17 source package in Jammy: In Progress Status in linux source package in Kinetic: In Progress Status in linux-oem-5.14 source package in Kinetic: New Status in linux-oem-5.17 source package in Kinetic: New Bug description: [Impact] the previous commit has been SRUed that enable CONFIG_INTEL_IOMMU_DEFAULT_ON. https://bugs.launchpad.net/subiquity/+bug/1937295 but it would caused the regression with AMD/NVIDIA GPUs. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965882 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971146 [Fix] Revert the vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.") Assign VMD irq domain before enumeration, irq domain comes from pci driver. [Test Case] 1. In BIOS, change to VMD 2. Check if SKU could boot-up. [Where problems could occur] it reduce the affected region to only VMD. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1976587/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
