RHEV/KVM: how are the CPU models mapped to the CPU flags?

Solution In Progress - Updated -

Issue

  • Where can I find the mapping between CPU models and flags for Virtualization?
  • How can I enabled or disable a specific feature/flag?
  • Which CPU flags are enabled when I select Sandy Bridge?
  • Which CPU flags are enabled when I select Haswell?
  • Which CPU flags are enabled when I select Broadwell?
  • Which CPU flags are enabled when I select Opteron_G5?

Environment

  • Red Hat Virtualization 4
  • Red Hat Enterprise Virtualization 3
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
    • libvirt
    • qemu-kvm

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