> -----Original Message----- > From: Laszlo Ersek <ler...@redhat.com> > Sent: Friday, February 14, 2020 7:15 AM > To: Ni, Ray <ray...@intel.com>; devel@edk2.groups.io; Ard Biesheuvel > <ard.biesheu...@arm.com> > Cc: l...@nuviainc.com; phi...@redhat.com; Gao, Zhichao > <zhichao....@intel.com> > Subject: Re: [edk2-devel] [RFC PATCH 1/1] OvmfPkg: add 'initrd' shell > command to expose Linux initrd via device path > > On 02/12/20 15:21, Ni, Ray wrote: > >> (3) However: I think this should be added as a Dynamic Command instead. > >> I'm basing this on the message of commit 0961002352e9 ("ShellPkg/tftp: > >> Convert from NULL class library to Dynamic Command", 2017-11-28), > which > >> is the first commit in edk2 ever to introduce a Dynamic Command. > >> > >> And the commit message there says: > >> > >> The guideline is: > >> 1. Only use NULL class library for Shell spec defined commands. > >> 2. New commands can be provided as not only a standalone application > >> but also a dynamic command. So it can be used either as an > >> internal command, but also as a standalone application. > >> > >> I'm not asking for the command to be usable as a separate application, > >> but I think we might want to follow the first guideline. > >> > >> (I've checked the UEFI Shell 2.2 spec. While it talks about dynamic > >> commands, it does not seem to spell out guideline#1. So I think it's > >> rather an edk2-specific guideline than a standard one. Nonetheless we > >> might want to adhere to it.) > > > > Laszlo, thanks for the comments😊. > > I didn't remember that I said these guideline publicly. > > The reason behind that is we can have the same shell binary everywhere > > and new non-spec commands can be added through dynamic command > without > > impacting the shell binary. > > Thanks for the explanation -- this means that the NULL class lib > approach is good for OvmfPkg after all. I'm putting the remaining parts > of this patch back on my review queue (it will take a while).
Please don't misunderstand my points. I still prefer to use dynamic commands for all non-spec defined shell internal commands. Sorry for the confusion caused by my previous mail. > > Thanks > Laszlo -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#54399): https://edk2.groups.io/g/devel/message/54399 Mute This Topic: https://groups.io/mt/71177416/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-