Hi Usama, On Thu, 9 Jan 2025 at 06:00, Usama Arif <usamaarif642@xxxxxxxxx> wrote: > > When this area is not reserved, it comes up as usable in > /sys/firmware/memmap. This means that kexec, which uses that memmap > to find usable memory regions, can select the region where > efi_mem_attr_table is and overwrite it and relocate_kernel. Is the attr table BOOT SERVICE DATA? If so, does efi_mem_reserve() work for you? Just refer to esrt.c. Thanks Dave
