Re: [PATCH 4/4] vl: Prioritize realizations of devices

[Daniel P . Berrangé]

On Thu, Sep 02, 2021 at 10:21:19AM -0400, Peter Xu wrote:
> Hi, Dan,
> 
> On Thu, Sep 02, 2021 at 02:53:00PM +0100, Daniel P. Berrangé wrote:
> > The correct ordering of devices/backends is generally pretty obvious
> > for libvirt to determine. Most of the problems we've had related to
> > ordering are on the QEMU side, because the ARGV given to QEMU made
> > correct sense if parsed left-to-right, but QEMU didn't actually process
> > them in that order. We've patched QEMU to hack around its inability to
> > honour the CLI order repeatedly.
> 
> Is there a pointer to the problem?

The biggest problem was with -object, where some objects need to be
created before chardevs and some created after chardevs.
See object_create_early() method in softmmu/vl.c for the gross
hardcoded hacks


Regards,
Daniel
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