When loading the PCIe OptROM for a Micron 7300 MAX U.2 drive on AArch64 (an ADLINK Ampere Altra Dev Kit) I get an emulation failure, as shown in the attached screenshot. I'm using MultiArchUefiPkg commit 7972cdf from Feb 6th, 2024.

I extracted the optrom image using PciRom and attached it. The information PciRom shows about it is:

ROM 0x0000E200 bytes
--------------------
+0x0: UEFI image (0xE200 bytes)
          Machine Type: 0x8664
             Subsystem: 0xB
    InitializationSize: 0xE200 (bytes)
  EfiImageHeaderOffset: 0x1B8
            Compressed: no

00-UEFI.rom.gz