VMware UEFI firmware modding (impossible ?) I'm trying to mod the vmware EFI firmware (not the legacy vmware bios440) to add SLIC 2.1 and so far it appear that andyp's tool does not work on it or I'm doing something wrong. The tool detect vmware rom as EFI / Insyde Bios, but fail to add the slic. I've tried all methods. module method = fail with insufficient space to insert module dynamic method = No complete SLIC table found SSV2 = Unable to add slic code The vmware EFI boot is activated while inserting the following line in your .vmx file : Code: firmware = "efi" You apparently can add theses 2 lines to customize your EFI firmware whith your own files Code: efi32.filename = "efi32.rom" efi64.filename = "efi64.rom" The roms appear to be embedded within vmware-vmx.exe. Open this with 7zip for exemple and you will find them in ".rsrc/BINRES". I believe they are files 6020 and 6021 I'd like to know if someone already managed to patch theses EFI roms and how. All constructive comments welcome !