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  1. RHEL
  2. RHEL-65836

Wrong iommu default when more than 255 vcpus are requested

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      Trying to create a domain that doesn't specify iommu with more than 255 vcpus results in invalid domain.
      ```

      more than 255 vCPUs require extended interrupt mode enabled on the iommu device

      ```

              mprivozn@redhat.com Michal Privoznik
              lpivarc Luboslav Pivarc
              virt-maint virt-maint
              Meina Li Meina Li
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