** Summary changed: - [UBUNTU 23.04] Kernel config option missing for s390 PCI passthrough + [UBUNTU 23.04] Kernel config option missing for s390x PCI passthrough
-- 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/2042853 Title: [UBUNTU 23.04] Kernel config option missing for s390x PCI passthrough Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Triaged Status in linux source package in Lunar: Triaged Status in linux source package in Mantic: Triaged Status in linux source package in Noble: Triaged Bug description: === Description by mjros...@us.ibm.com === LP#1853306 / IBM bug 182254 backported the necessary kernel pieces to enable enhanced interpretation of PCI passthrough on s390. It also included a kernel config update for CONFIG_VFIO_PCI_ZDEV_KVM=y which is necessary to activate this kernel feature. For lunar and mantic, the kernel code did not require backporting due to the base kernel version already containing it, but the kernel config option still needs to be enabled. Comparison from git.launchpad.net: Jammy: cat debian.master/config/annotations | grep CONFIG_VFIO_PCI_ZDEV_KVM CONFIG_VFIO_PCI_ZDEV_KVM policy<{'s390x': 'y'}> CONFIG_VFIO_PCI_ZDEV_KVM note<'LP#1853306 Enable VFIO zPCI pass-through for s390x'> Lunar: cat debian.master/config/annotations | grep CONFIG_VFIO_PCI_ZDEV_KVM CONFIG_VFIO_PCI_ZDEV_KVM policy<{'s390x': 'n'}> Mantic: cat debian.master/config/annotations | grep CONFIG_VFIO_PCI_ZDEV_KVM CONFIG_VFIO_PCI_ZDEV_KVM policy<{'s390x': 'n'}> This setting is supposed to default y when S390 && KVM via Kconfig. Can this be enabled for lunar, mantic, and future releases? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/2042853/+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
