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Dan Williams 24f0692bfd ACPI: NUMA: Add CXL CFMWS 'nodes' to the possible nodes set
The ACPI CEDT.CFMWS indicates a range of possible address where new CXL
regions can appear. Each range is associated with a QTG id (QoS
Throttling Group id). For each range + QTG pair that is not covered by a proximity
domain in the SRAT, Linux creates a new NUMA node. However, the commit
that added the new ranges missed updating the node_possible mask which
causes memory_group_register() to fail. Add the new nodes to the
nodes_possible mask.

Cc: <stable@vger.kernel.org>
Fixes: fd49f99c18 ("ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT")
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: Vishal Verma <vishal.l.verma@intel.com>
Tested-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/166631003537.1167078.9373680312035292395.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
History 2022-10-21 16:14:59 -07:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.