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[Elod Illes <2043030@xxxxxxxxxxxxxxxxxx>]

** Also affects: nova/bobcat
   Importance: Undecided
       Status: New

** Also affects: nova/antelope
   Importance: Undecided
       Status: New

** Changed in: nova/antelope
       Status: New => In Progress

** Changed in: nova/bobcat
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/2043030

Title:
  Flavors with trait:HW_CPU_X86_VMX='required' are not working properly

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) antelope series:
  In Progress
Status in OpenStack Compute (nova) bobcat series:
  In Progress

Bug description:
  I'm having trouble with Flavor which have
  trait:HW_CPU_X86_VMX='required' as a requirement.

  I've checked the code and get_flags_by_flavor_specs at https://opendev.org/openstack/nova/src/commit/b64ecb0cc776bd3eced674b0f879bb23c8a4b486/nova/virt/libvirt/utils.py#L656 is expecting that each key in TRAITS_CPU_MAPPING is a string but as you can see HW_CPU_X86_VMX is actually part of a tuple (os_traits.HW_CPU_X86_VMX, os_traits.HW_CPU_X86_INTEL_VMX).
  and get_flags_by_flavor_specs fails to extract vmx flag from flavors properly.

  I've been experiencing this issue on Antelope and based on current
  state of master it's still out there.

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