Re: [PATCH v2 00/18] MMCONFIG: get ready for _CBA and hot-plug host bridges

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On Fri, 13 Nov 2009 17:33:32 -0700
Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote:

> These patches convert the table of MMCONFIG regions to a list, to
> make it easier to support addition and removal of regions at run-time.
> 
> MMCONFIG management will need to be more dynamic to support _CBA (a
> PCI host bridge ACPI method that reports the MMCONFIG address),
> because we will discover _CBA when we claim the host bridge, not in
> the current pci_arch_init() path.
> 
> The PCI Firmware Spec requires BIOS to use _CBA, not MCFG, to report
> MMCONFIG regions of hot-pluggable host bridges.  Therefore, if the
> hardware and firmware support host bridge hotplug, we will encounter
> _CBA even if Linux itself doesn't support hotplug.
> 
> I changed some printk and resource name text, but otherwise, except
> for any implementation errors I made, this series should have no
> functional change.
> 
> Changes from v1 to v2:
>     - update resource name when changing bus number range (Yinghai,
> in 11/18)
> 

Yinghai, are you ok with adding your reviewed-by or acked-by to this?

-- 
Jesse Barnes, Intel Open Source Technology Center
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