When running qemu-system-x86_64 -bios {ovmf_pure_efi_path} -drive format=raw,file={uefi_path} -smp {core_count}
the bootloader gets sometimes stuck at:
INFO : UEFI bootloader started
INFO : Using framebuffer at 0xc0000000
INFO : Reading configuration from disk was successful
INFO : Trying to load ramdisk via Disk
INFO : Ramdisk not found.
TRACE: exiting boot services
Higher core counts for the -smp argument result in a higher likelihood of it getting stuck.
(I am not sure if it even occurred once at -smp 1)