Apologies, Timo. I meant to get to it on Monday, but I should have left a note here anyway. Either way, I've updated the bug and added the SRU description.
** Description changed: + [ Impact ] + + QEMU users on Noble who want to use Intel's SierraForest CPU model for + their virtual machines are currently unable to do so. As part of the + hardware enablement SRU exception for QEMU, this SRU backports the + necessary patch that adds this new CPU model. There will be a + corresponding libvirt SRU soon. + + [ Test Plan ] + + On a system which can launch VMs, one can simply try to create and boot + a QEMU VM using SierraForest as its CPU model: + + $ qemu-system-x86_64 -cpu SierraForest -enable-kvm -cdrom + https://releases.ubuntu.com/jammy/ubuntu-22.04.5-live-server-amd64.iso + -nographic + + When inside the VM, we can inspect /proc/cpuinfo to make sure that it's + using the SierraForest model. + + [ Where problems could occur ] + + The backported patch is simple and well contained. There is always a + chance that the patch contains an error and that it affects those users + who are launching VMs using SierraForest as their explicit CPU model, + but in such cases the user already wasn't able to launch such VMs + before, so no regression is really being introduced. Worst case + scenario, we can revert the patch in the meantime. + + [ Original Description ] + [Description] Add Sierra Forest CPU model required for basic VM lifecycle on SRF. [Hardware Information] Architecture: Intel / AMD (x86_64) Platform(s): Sierra Forest Date HW is expected at Canonical: Component(s): QEMU [Software Information] Target Version: 24.04 Target Qemu: qemu-9.0.0 Commit IDs: f3245d7fa3 target/i386: Add new CPU model SierraForest External Links: [Business Justification] [Testing guidance] AC: The new SRF CPU model is an available option to create new VM. All SRF new features are included in SRF CPU model. [External ID] LFE-6818 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2028964 Title: [SRF] Virt-QEMU: Add Sierra Forest CPU model for KVM guests To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2028964/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
