Hi, It can be implemented independent of the GenFds tool It accepts the parameters passed by building and GenFds Tool Best Regards Fan Zhiju From: sean.brogan via [] Sent: Friday, April 3, 2020 10:51 AM To: Fan; Fan, ZhijuX ; devel@edk2.groups.io Subject: Re: [edk2-devel] [PATCH 1/1] BaseTools:Add the spare space FV image size checker I would have much rather seen this implemented independent of the GenFds tool as this is a nice feature but shouldn't be tightly coupled into the tool that does building and packaging firmware.