On Mon, 18 Nov, at 10:16:41AM, Dave Young wrote: > Matt, desc_version is already in boot_params.efi_info, so kexec-tools > can get the version from there. I do not need to export it as another > file. OK, cool. > I think for now we do not need worry much about the compatibility > issue, do you think I need add version checking in kexec-tools > currently? like below? > > if (desc_version != 1) /* current version is 1? */ > error out it is not supported Yes, something like that. If you already have kexec-specific ways of checking a version number then that's fine. Just make sure that, if the EFI memory descriptor structure is extended in the future and more files are exported for each descriptor, kexec-tools say "I don't know how to build a data structure for from these files". -- Matt Fleming, Intel Open Source Technology Center
