hey, Heads-up, while testing out arm64 SecureBoot in the QEMU virt model, I hit a couple bugs in shim that were causing it to crash:

https://github.com/rhboot/shim/pull/173 https://github.com/rhboot/shim/pull/174

They are not arm64-specific, but happen to not escalate to crashes on x86 because of it's memory layout.

-dann