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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-89a316ec97dsm66613336d6.42.2026.03.08.17.06.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Mar 2026 17:06:23 -0700 (PDT) Date: Sun, 8 Mar 2026 20:06:21 -0400 From: Gregory Price To: Kai Huang Cc: rafael@kernel.org, lenb@kernel.org, dan.j.williams@intel.com, alison.schofield@intel.com, akpm@linux-foundation.org, nunodasneves@linux.microsoft.com, xueshuai@linux.alibaba.com, thorsten.blum@linux.dev, wangyuquan1236@phytium.com.cn, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] ACPI: NUMA: Only parse CFMWS at boot when CXL_ACPI is on Message-ID: References: <20260308222313.14014-1-kai.huang@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260308222313.14014-1-kai.huang@intel.com> On Mon, Mar 09, 2026 at 11:23:13AM +1300, Kai Huang wrote: > On CXL platforms, the Static Resource Affinity Table (SRAT) may not > cover memory affinity information for all the CXL memory regions. Since > each CXL memory region is enumerated via a CXL Fixed Memory Window > Structure (CFMWS), during early boot the kernel parses the CFMWS tables > to find all CXL memory regions and sets a NUMA node for each of them. > This memory affinity information of CXL memory regions is later used by > the CXL ACPI driver. > ... snip ... > > Signed-off-by: Kai Huang lgtm Reviewed-by: Gregory Price