Re: [PATCH v6 4/8] arm64: PCI: Support root bridge preparation for Hyper-V

From: Catalin Marinas
Date: Fri Aug 20 2021 - 13:49:56 EST


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]: https://lore.kernel.org/lkml/20210811153619.88922-1-boqun.feng@xxxxxxxxx/

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.

--
Catalin