Re: [PATCH v3] hw/smbios: support for type 41 (onboard devices extended information)

[Michael S. Tsirkin]

On Tue, Apr 06, 2021 at 09:05:58PM +0200, Igor Mammedov wrote:
> On Fri, 02 Apr 2021 19:40:03 +0200
> Vincent Bernat <vincent@bernat.ch> wrote:
> 
> >  ❦  1 avril 2021 23:07 +02, Vincent Bernat:
> > 
> > >>> This can be invoked with:
> > >>> 
> > >>>     $QEMU -netdev user,id=internet
> > >>>           -device 
> > >>> virtio-net-pci,mac=50:54:00:00:00:42,netdev=internet,id=internet-dev \
> > >>>           -smbios type=41,designation='Onboard 
> > >>> LAN',instance=1,kind=ethernet,pcidev=internet-dev  
> > >>
> > >> an ACPI alternative was merged recently (current master).
> > >> assigning 'designation=' wasn't implemented there, but important part
> > >> of giving users control over PCI devices 'eno' index is implemented.
> > >>
> > >> When I looked into the issue, smbios way was a bit over-kill for the task
> > >> and didn't really work if hotplug were used.
> > >>
> > >> See, for example how to use new feature:
> > >>  https://www.mail-archive.com/qemu-devel@nongnu.org/msg794164.html  
> > >
> > > It seems simpler this way. I don't think my patch is needed then.  
> > 
> > Well, after thinking a bit, if the patch is good enough, maybe it can
> > still be merged. It is fairly generic and it adds the ability to set the
> > name of the card. It's not as convenient as using acpi-index, but I
> > could add a note about acpi-index in the documentation to let people
> > know they may prefer the simpler acpi-index?
> 
> Patch looks fine to me.
> Can you fix TODO item in it (segment_group_number) on next respin, pls?

One advantage of smbios is that it supports multifunction devices.
So there's that.


> Also QEMU now is in soft-freeze, so only bug fixes got merged,
> it's better to ping Michael after 6.0 is released so patch won't get lost.