[Kernel-packages] [Bug 1765040] Re: Runtime microcode updates do not expose new features completely

** Attachment removed: "artful patches" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765040/+attachment/5120956/+files/cpuid.tar.gz ** Attachment added: "artful patches" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765040/+attachment/5124602/+files/cpuid.tar.gz -- You

[Kernel-packages] [Bug 1765040] Re: Runtime microcode updates do not expose new features completely

No applicable logs for this. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1765040 Title: Runtime microcode

[Kernel-packages] [Bug 1765040] [NEW] Runtime microcode updates do not expose new features completely

Public bug reported: Unlike upstream, the artful kernel uses the scattered CPU bits arch/x86/kernel/cpu/scattered.c to get the IBRS/IBPB CPUID bits in the KVM CPUID ioctls(). However, these are not updated when loading new microcode at run-time. This means that if you boot a system with older