On Fri, 21 Jul, at 09:19:56PM, Baoquan He wrote: > > There are places where the efi map is getting and used like this. E.g > in efi_high_alloc() of drivers/firmware/efi/libstub/efi-stub-helper.c. > EFI developers worry the size of efi_memory_desc_t could not be the same > as e->efi_memdesc_size? > > Hi Matt, > > Could you help have a look at this?
You're exactly right. The code guards against the size of the efi_memory_desc_t struct changing. The UEFI spec says to traverse the memory map this way.
