From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f49.google.com (mail-qv1-f49.google.com [209.85.219.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 369E886329 for ; Mon, 9 Mar 2026 00:06:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773014786; cv=none; b=T8vUKYlZlE1x5YPtWIjFEYS4M0ZefEHocKHQ9wq4WQmfUjsccDQR18SD/U9+287pB7uuQo7WqceGNCy4czI2S6/mwBtzaL/EZWaOb9CvEpt7taO1ziYk/r3Ry2/Hnwd9P5fkhvHRxhWMO+Vot0U3jY9qQTRWsSUl2opo2KWuShA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773014786; c=relaxed/simple; bh=GWAy4SlMgiiwMcJuaHhTNI8/YoEwWVInasLRrMpru8k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Kde6Ob/f2abUs/u30evct6uwJ44ao167Cvlrz7e2XSDJkIrHYrG9wglvuuEFZ6oGcv5J/sc2emx6JE0Wi3HyXCjjgTcxI0dLT0dfO6xjtJHHHSSpXyaStGi4iB6x1QEAcKKnZ1tuCQDutng2sRe/ddRk+RU03AkALuRHGi8QG1c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=gourry.net; spf=pass smtp.mailfrom=gourry.net; dkim=pass (2048-bit key) header.d=gourry.net header.i=@gourry.net header.b=q5Mq8Zim; arc=none smtp.client-ip=209.85.219.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=gourry.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gourry.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gourry.net header.i=@gourry.net header.b="q5Mq8Zim" Received: by mail-qv1-f49.google.com with SMTP id 6a1803df08f44-89a1347051aso104061576d6.2 for ; Sun, 08 Mar 2026 17:06:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gourry.net; s=google; t=1773014784; x=1773619584; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=E63/CSKkVqJAC9JwqiUKsNfXHYaOZS6yvHj9VcfqZOQ=; b=q5Mq8ZimzAmQAvCl4LRsYoTfV8vKR4edPgDtkja/uvxinS/YTlrSoXy6ixxBCHJN0e NzJjMTDQty/4gfg4cpWdquehDv45bIs0UYwUFnpm43PIxbCDr3z2i/29fM6uFTro6TqW NRC8dC0A/eeAvX0J8g6v2GV2JpP4jyc3nPluHR9UMt88tFfEbFekp9KroRcaRutDKo3t 2UoNEbkhh5Gdf46Ff9trb3uBrH+yRIaK0rEy3eqZf7Wge+Kj8dWcs3TvG2/AikkSrG2t Bv7euFGgUXvxItk3PFESsO0lhhkPj5vDmHt5SWzcR43MJvBiCfq9KseLj4YMswakJ/jE NQCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773014784; x=1773619584; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=E63/CSKkVqJAC9JwqiUKsNfXHYaOZS6yvHj9VcfqZOQ=; b=bcC+FIQGJP1TgOCDAsCYitjuhx+Mr5i2rOxzgnKE2MBeD+pDXatflmbkL+jqLgcbGC AnBE0i0FizkrhG4Vv9GGXm3UlwFS4QdNohxwXmANKQql3Efh7e9E3vxO5retzJ9YJia+ zXvU7La0hh47K3x7C5EjGFvMkTTyt1yqw2eWiFffXkUAaslyMTC920mT9hBJ6XFf6lju T1ydZnLJdTD83YPwv9/hJ8OBAY2uJoYtuBLVSJYKno6KtwiFvcODY6paSaToHoyfVkwN NPExdZ9NdLHny4JWVEr4y9hg2u2TIktePcsgl3NFgt7KaUmrjGnpNP/D7O5YS6bKw4eJ nXEQ== X-Forwarded-Encrypted: i=1; AJvYcCUxG+eyHr3jCUciTAlfvHyzS5pTnYTAP5Bzg/D8ayr9EDzGaOm1tQ0ZcceXdTYlPxVaCUpD7/BHexPs@vger.kernel.org X-Gm-Message-State: AOJu0YxoNexQgeDEnUbswmiOS4ybNVWsXwHDpA5UpsbZH2aWH97qbgP0 zFbxD8I90E6WS/XpBHLAo6L+q9rJwuXGc5Tay/f4dap2tgwR9gK5oE7rtZAKignU0IU= X-Gm-Gg: ATEYQzwAx+W3U9T1zZvYt7op+hwPn6ScHlLvqJGeM81nd4pxWPJSLoX2dRDVzb5NYEP XyYjlkzuTEp+zJSfvQsJ2kNPOD3yevDKISstNNWGhxPhjAVCs7wcMEodvndYgpLCpNbi92xbNuz b5Gts3bgTZ2gb7zHGstn7MrwanVFsDe3rDaVF3DQ/5pLfL0XqtiZnWGeMS672TenMSO10GnKeDt hmO+mhTauk+FMZ8ynImROHxBbNHboGTykbahOnAW4cTACjgjDPlT0PuKJvWyghO1M7GBTE2NM8U xSaOwzCPZ+62L3X/V4SuBk5BKfTTdxTyQWXjdX7D0vVBxZvO2lPH0sKGi5mjEydt3hId2nFjAOq vLBtwVxPMNnd7vPjBt+ZnzE/9RIeN5knleX2IhHxA3xc9ezquxvqDpsGzkQ4RikYo8T4/sQPObw 8KMPit/MsmyhAKxv2lvbcBWZDqsyd7BbCyi+rXNFI8DFeDeQlePHgBGmBVsZWJnDPJRnnMz/X+d UwCQXvPgg== X-Received: by 2002:a05:6214:f6a:b0:89a:7d9:34a0 with SMTP id 6a1803df08f44-89a30a8006emr148896126d6.29.1773014784142; Sun, 08 Mar 2026 17:06:24 -0700 (PDT) Received: from gourry-fedora-PF4VCD3F (pool-96-255-20-138.washdc.ftas.verizon.net. [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-acpi@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