[SeaBIOS] [PATCH 2/2] accept MADT over fw_cfg

[David Woodhouse]

On Wed, 2013-03-20 at 20:22 -0400, Kevin O'Connor wrote:
> On Wed, Mar 20, 2013 at 10:53:05PM +0100, Laszlo Ersek wrote:
> > 
> > Signed-off-by: Laszlo Ersek <lersek at redhat.com>
> 
> I think we need to figure out what the final fw_cfg interface for
> ACPI, SMBIOS, mptable, and PIR will be.

Once we have consensus, we can implement this on the OVMF side too. Is
anyone (Laszlo?) looking at that, or should I?


> For SMBIOS, I don't think we should use the existing fw_cfg mechanism.
> It's too complicated for what is needed.  Instead, one fw_cfg "file"
> entry with the whole smbios table should suffice. 

Agreed. I'd already looked at doing this in OVMF, and run away
screaming.

>  For mptable and PIR, there is no current mechanism, so we can add new
> fw_cfg "files" for them.  However, for all of these SeaBIOS needs to
> be able to determine when it needs to create the table and when no
> table should be published at all.

I'd make it all-or-nothing. Except for a few historical qemu commits if
you're bisecting, why would qemu ever provide a *partial* set of tables?

-- 
                   Sent with MeeGo's ActiveSync support.

David Woodhouse                            Open Source Technology Centre
David.Woodhouse at intel.com                              Intel Corporation
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