On 8/22/19 11:03 AM, AKASHI Takahiro wrote:
Heinrich,
I'm now wondering whether LoadedImage's LoadOptions, which comes from "bootargs" variable, should contain a command(application) name as a first argument or not.
When I tried some efi application (efitools), I found that it expected so. For example, efitools' UpdateVars.efi takes Usage: UpdateVars.efi: [-g guid] [-a] [-e] [-b] var file
and I had to passed arguments by specifying "foo db DB.auth" for "bootargs" where foo makes no sense.
What do you think about this issue?
Do you relate to https://git.kernel.org/pub/scm/linux/kernel/git/jejb/efitools.git?
This style of parsing LoadOptions is defined by the EFI shell. See function ParseCommandLineToArgs() in ShellPkg/Application/Shell/ShellParametersProtocol.c.
If UpdateVars.efi would work differently it could not be launched via the shell.
Best regards
Heinrich