Re: [PATCH 0/5] buses: switch to 3-phase-reset

[Peter Xu <peterx@redhat.com>]

Hi, Peter,

On Fri, Jan 19, 2024 at 04:35:07PM +0000, Peter Maydell wrote:
> I wrote this ages ago and recently picked it back up because of a
> recent PCI related reset ordering problem noted by Peter Xu.  I'm not
> sure if this patchset is necessary as a part of fixing that ordering
> problem (it might even be possible now to have the intel_iommu device
> use 3-phase reset and put the relevant parts of its reset into the
> 'exit' phase), but either way we really ought to do this cleanup
> to reduce the amount of legacy/transitional handling we have.

The VFIO issue I was working on may not directly benefit from this series
iiuc, as it's more of an special ordering on both (1) VFIO special case
reset path using qemu_register_reset(), and (2) VT-d device is not put at
the right place in the QOM hierachy [1].

Said that, thanks a lot for posting the patches; they all look reasonable
and good cleanups to the reset infrastructure, afaict.

[1] https://lore.kernel.org/r/ZapYii9nr5Tj9ClE@x1n

-- 
Peter Xu