linux-kernel - RE: [PATCH v4 0/2] CXL: Apply SRAT defined PXM to entire CFMWS window

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Date:   Mon, 7 Aug 2023 23:56:43 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     <alison.schofield@...el.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        "Peter Zijlstra" <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Mike Rapoport <rppt@...nel.org>
CC:     Alison Schofield <alison.schofield@...el.com>, <x86@...nel.org>,
        <linux-cxl@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v4 0/2] CXL: Apply SRAT defined PXM to entire CFMWS window

alison.schofield@ wrote:
> From: Alison Schofield <alison.schofield@...el.com>
> 
> 
> Changes in v4:
> - Remove useless export of numa_fill_memblks()  (Dan)
> - Rebase on latest tip tree

This thread has gone quiet. Any concerns from x86/mm folks if I take
this through the CXL tree with an x86 ack? Or anything else I can help
out with on this one?

> 
> v3: https://lore.kernel.org/linux-cxl/cover.1687645837.git.alison.schofield@intel.com/
> 
> ----
> 
> Cover Letter:
> 
> The CXL subsystem requires the creation of NUMA nodes for CFMWS
> Windows[1] not described in the SRAT. The existing implementation
> only addresses windows that the SRAT describes completely or not
> at all. This work addresses the case of partially described CFMWS
> Windows by extending proximity domains in a portion of a CFMWS
> window to the entire window.
[..]