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)

• ovmf-prebuilt = "0.1.0-alpha.1"
• occurred independent of used BootloaderConfig
• never encountered on hardware
• occurred on Linux, Mac and Windows hosts
• my toy Os repo: https://github.com/daniel-keitel/Steelmind_OS