Public bug reported: Architectural LBRs (Last Branch Records)
Architectural LBRs (Last Branch Records) enable recording of software path history by logging taken branches and other control flow transfers within model-specific registers, and is inherited from legacy LBR. If CPUID.(EAX=07H, ECX=0):EDX[19] is set to 1, the processor supports Architectural LBRs. With VMCS support and XSAVE support, the KVM guests could also use ARCH LBR as well. Target Linux 5.17 ** Affects: kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1954468 Title: KVM Architectural LBRs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/1954468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs