Does my system support the new 5-Tier Page Tables?

Solution Verified - Updated -

Issue

  • How can I tell if I can use 512 GiB Hugepages?
  • How can I tell if my system can use the 5-Level page table support in RHEL 8?
  • I tried to set the Hugepage size to 512 GiB and it failed

Environment

  • Red Hat Enterprise Linux 8
  • Intel CPUs starting with Ice Lake

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