** Information type changed from Private to Public -- 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/1902179
Title: [20.04 FEAT] Support/enhancement of NVMe IPL Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Fix Released Status in s390-tools package in Ubuntu: Fix Released Status in linux source package in Focal: New Status in s390-tools source package in Focal: New Status in linux source package in Groovy: In Progress Status in s390-tools source package in Groovy: Fix Released Status in linux source package in Hirsute: Fix Released Status in s390-tools source package in Hirsute: Fix Released Bug description: SRU Justification: (groovy) ================== [Impact] * The basics for being able to IPL (boot) from NVMe devices on s390x were introduced with kernel 5.8. * This was tested and is proven to work with groovy. * Now a patch was requested to be added to groovy that introduces support for NVMe IPL kernel parameters. [Fix] * d9f12e48d08ec08ace574050a838e001e442ee38 d9f12e48d08e "s390/ipl: support NVMe IPL kernel parameters" [Test Case] * IBM z15 or LinuxONE III hardware is needed with an NVMe device attached to a LPAR. * Just check if NVMe kernel parameters can be passed over. * Due to the lack of hardware this test needs to be done by IBM. [Regression Potential] * There is a certain regression risk with this patch, since: * The handling of 'scpdata' is changed, and with that the way how kernel cmd-line parameters are extracted from the NVMe IPL block, that is passed by the firmware to the kernel at boot time. * If broken such a hand over will not work for NVMe anymore - which wouldn't be a very big problem for now, since booting w/o still works fine (as it does today). * But in worst case it could break the hand over of cmd-line parameters for FCP devices, since some code is shared or even harm ipl in general. * The patch is upstream accepted (with v5.10-rc1 - as of today in linux-next) and a patched groovy kernel was build and shared for further testing. * All modifications are limited to the s390x architecture and there again to the unique way of booting aka IPL (s390/boot/ipl*). [Other] * This is in preparation for getting IPL (boot) from NVMe device support on s390x backported to focal (for hardware enablement reasons). * Without having this patch in groovy, one may face a regression during upgrade from groovy to focal. * Since it's planned to have the hirsute kernel on 5.1x, it will have this patch sooner or later. * However, since the today's hirsute kernel is just based on groovy, I've added hirsute to the SRU. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1902179/+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
