Comment 21 for bug 1882671

Following [1] I was building my test OVMF as guided by Lazlo.
That way I was able to use the combined e1000 EFI of the Ubuntu packages vs the debug OVMF build.

Using that I can confirm the behavior (Bionic working, Focal failing).

$ qemu-system-x86_64 -enable-kvm -monitor stdio -drive if=pflash,snapshot=on,format=raw,file=/root/edk2/Build/OvmfX64/DEBUG_GCC5/FV/OVMF.fd -global e1000.romfile=/usr/lib/ipxe/qemu/efi-e1000.rom -debugcon file:debug.log -global isa-debugcon.iobase=0x402

#/usr/lib/ipxe/qemu/efi-e1000.rom is from package ipxe-qemu
#/root/edk2/Build/OvmfX64/DEBUG_GCC5/FV/OVMF.fd is the debug build, I'll attach that file here to eas repo in other places

Symptoms when failing:
- UI never leaves the "initializing" state
- in the debug.log the bad case asserts with
  ASSERT /root/edk2/MdeModulePkg/Core/Dxe/Image/Image.c(1676): Image->Tpl == gEfiCurrentTpl

That it seems to work fine with the ovmf build that is in Focal 0~20191122.bd85bf54-2ubuntu3 makes the SRU of this less urgent IMHO. And also resolves some of my remaining confusion since I've known that EFI boots in general work - and it seems (at least in this test POV) - that only a newer or different built OVMF triggers the issue.

[1]: https://wiki.ubuntu.com/UEFI/EDK2#Set_up_build_environment