[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1954468
Title:
KVM Architectural LBRs
Status in linux package in Ubuntu:
Expired
Bug description:
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
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