Re: [Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Nov 24, 2016 at 09:37:41AM +0100, Laszlo Ersek wrote:
> On 11/24/16 05:29, Michael S. Tsirkin wrote:
> > On Wed, Nov 23, 2016 at 07:38:35PM -0500, Kevin O'Connor wrote:
> >> As a general comment - it does seem unfortunate that we keep building
> >> adhoc interfaces to communicate information from firmware to QEMU.  We
> >> have a generic mechanism (fw_cfg) for passing adhoc information from
> >> QEMU to the firmware, but the inverse seems to always involve magic
> >> pci registers, magic io space registers, specific init ordering, etc.
> > 
> > FWIW I posted a proposal
> > 	fw-cfg: support writeable blobs
> > a while ago to try to address that
> > 
> 
> Yes, here's the discussion (Feb 2016):
> 
> https://www.mail-archive.com/qemu-devel@nongnu.org/msg354852.html
> 
> and it was even part of a pull req (Mar 2016):
> 
> https://www.mail-archive.com/qemu-devel@nongnu.org/msg359348.html
> 
> but it wasn't merged, apparently.
> 
> If QEMU (re)gains this feature, I can try basing the broadcast SMI
> negotiation on it.
> 
> Thanks
> Laszlo

I dropped since it wasn't used yet. Go ahead and include it
in your patchset if you like it.

-- 
MST