Date: Fri, 14 Oct 2016 10:33:15 -0700 From: Ravi Pokala <rpokala@mac.com> To: Doug Ambrisko <ambrisko@ambrisko.com>, Warner Losh <imp@bsdimp.com> Cc: Doug Ambrisko <ambrisko@freebsd.org>, src-committers <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r307326 - head/sys/boot/efi/loader Message-ID: <3FF8A9D8-0C8A-4033-A7FC-8B64E9AB025F@panasas.com> In-Reply-To: <20161014172705.GA65545@ambrisko.com> References: <201610141710.u9EHArlL089412@repo.freebsd.org> <CANCZdfo0JE_BMWZOHerNVez2HG3PZ4Y=H8ZYZjbZdQVthD=z-w@mail.gmail.com> <20161014172705.GA65545@ambrisko.com>
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-----Original Message----- > From: <owner-src-committers@freebsd.org> on behalf of Doug Ambrisko <ambrisko@ambrisko.com> > Date: 2016-10-14, Friday at 10:27 > To: Warner Losh <imp@bsdimp.com> > Cc: Doug Ambrisko <ambrisko@freebsd.org>, src-committers <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> > Subject: Re: svn commit: r307326 - head/sys/boot/efi/loader > > On Fri, Oct 14, 2016 at 11:16:02AM -0600, Warner Losh wrote: > | Love the functionality, but don't like using the 'hint' namespace for > | this. Can we change it now before too many things depend on it? We had > | similar issues in ACPI and moved it to the 'acpi' space. Can we move > | this to the 'smbios' space please? > | > | The reason is that 'hint' is special and sometimes filtered out, so it > | is a poor choice to export data from the boot loader to the kernel. > > The reason I picked hint was it could be put /boot/device.hints > to make it work as well and that it was a hint. Other standards in the > future might use other methods. Looking back over the email I had > with John he had suggested hint.smbios.0.anchor to make this look > different. This code had been hanging around for so long I forgot > about that and we were using hint.smbios.0.mem in our shipping code base. > > However, I hope that nothing would use this except for smbios(4) and > for people to make smbios(4) useful for this info. Doug's looking at me when he says that. :-) We talked about this last night at BAFUG; right now, even if smbios(4) is able to find the SMBIOS info -- it currently only looks at the aforementioned 0xf0000 - 0xfffff range, so it can't find it on UEFI -- smbios(4) doesn't actually provide any interface for that information. Doug and I have talked about making smbios(4) useful, by parsing the data and providing KPIs and APIs, for years now; I think I'll *finally* have the time and motivation to do so "soon". -Ravi (rpokala@) > Thanks, > > Doug A.
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