ACPI based root bridge hot-add

Date: Fri, 18 Mar 2005 13:38:57 -0800
From: Rajesh Shah <[email protected]>
To: [email protected]
Cc: linux-pci-jyMamyUUXNJG4ohzP4jBZS1Fcj925eT/@public.gmane.org, [email protected],
[email protected]
Subject: [RFC/Patch 0/12] ACPI based root bridge hot-add

Here is a series of patches to support ACPI hot-add of a root bridge hierarchy. The added hierarchy may contain other p2p bridges and end/leaf I/O devices too. The root bridge itself is assumed to have been assigned resource ranges, but the p2p bridges and end devices are not required to be initialized by firmware. Most of the code changes are to make the existing code flows suitable for such a hierarchy of bridges & devices.

This code supports hot-add on ia64 only for now.It does not yet support I/O APIC hot-add, which is needed to make this fully functional. The patches are against 2.6.11-mm4 (plus the patch needed for ia64 to boot). I've tested to make sure this does not break end/leaf device hotplug on the hotplug capable ia64 box I have.

Thanks,
Rajesh