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SubjectRe: [PATCH v6 4/8] arm64: PCI: Support root bridge preparation for Hyper-V
On Fri, Aug 20, 2021 at 06:49:47PM +0100, Catalin Marinas wrote:
> Hi Boqun,
> Sorry, I just got back from holiday and I'm still in the deleting emails
> mode.
> On Fri, Aug 20, 2021 at 12:13:22AM +0800, Boqun Feng wrote:
> > Appreciate it that you can have a look at this one and patch #4, note
> > that there exists an alternative solution at[1].
> >
> > The difference is the way used to pass the corresponding ACPI device
> > pointers for PCI host bridges: currently pci_config_window->parent is
> > used, and this patch and patch #4 allow the field to be NULL, because
> > Hyper-V's PCI host bridges don't have ACPI devices, while [1] changes to
> > use pci_host_bridge->private. And I'm OK with either way, I don't have a
> > strong opinion here ;-)
> [...]
> > [1]:
> I'm ok with the arm64 bits in this series and the one you linked above.
> It's up to Lorenzo if he's happy with how pci-hyperv.c ends up looking,
> I'm not a PCIe expert. My preference would be for a combined series
> (this and [1] above).
> Happy to ack the arm64 patches in a combined series (if you are going to
> post one), the changes would look even simpler.

I believe [1] above is an experiment - therefore it is best to stick to
this series as it is for the time being, pending refactoring that
requires more time, I would not rush it.

If you can ACK the arm64 patches (3,4) please I will pull the series
into the PCI tree asap.


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