On 2/7/22 06:21, Cezary Rojewski wrote: > ROM requests are messages initiated by Host to alter firmware early boot > process. They specify whether the next boot should be a fresh start or if > IMR can be used to speed things up. 'can' is an imprecise term in technical documentation. did you mean 'shall' (requirement), 'may' (permission) or 'should' (recommendation)? It's my understanding that it's legal to redo a complete reboot from a clean-slate. It's also unclear if the firmware can use this mechanism to prevent the use of IMR, e.g. if in some firmware builds state save/restore was disabled for some reason.