[PATCH v4 4/7] smbios: Use SMBIOS 3.0 to support an address above 4GB

[Mark Kettenis]

> From: Simon Glass <sjg at chromium.org>
> Date: Thu, 28 Dec 2023 13:37:03 +0000
> 
> Hi Ilias,
> 
> On Wed, Dec 27, 2023 at 11:05 AM Ilias Apalodimas
> <ilias.apalodimas at linaro.org> wrote:
> >
> > Hi Simon,
> >
> > On Wed, 27 Dec 2023 at 09:40, Simon Glass <sjg at chromium.org> wrote:
> > >
> > > When the SMBIOS table is written to an address above 4GB a 32-bit table
> > > address is not large enough.
> > >
> > > Use an SMBIOS3 table in that case.
> >
> > Maybe I missed this on the previous revisions, but is there a reason
> > we don't always use SMBIOS3 now?
> 
> I am not sure...there was some comment about it not being supported in
> some cases, so I have tried to accommodate that.
> 
> >  And perhaps try to install SMBIOS2 if
> > 1. we fail
> 
> due to?
> 
> > 2. and the address is < 4GB
> 
> We could, I suppose. Effectively we would drop generation of SMBIOS2.
> 
> I really don't mind. This whole SMBIOS thing is a bit ridiculous, if
> you ask me.

Linux added support for the SMBIOS 3.0 64-bit entry point in 2014.  I
doubt anyone who cares about SMBIOS cares about kernels that old.

So if it simplifies things, I'd drop support for the 32-bit SMBIOS
entry point.