1. A method, comprising: during a pre-extensible firmware interface initialization (PEI) phase of a boot flow at an information handling system: providing an update request repository that includes a plurality of entries, wherein each of the plurality of entries corresponds to a particular system setting and wherein a system setting value associated with each entry is included in a handoff block (HOB) of a plurality of handoff blocks associated with a cache; receiving a command from a PEI module (PEIM) indicating a change to be made to a particular system setting at the information handling system; and creating or changing a particular entry of the update request repository based on the command, wherein the creating comprises, when the update request repository does not include an entry that corresponds to the particular system setting: creating the particular entry for the particular system setting; reading a value of the particular system setting from one of the HOBs; and associating with the entry for the particular system setting the value of the particular system setting read from the HOB.