From nobody Sun Apr 12 00:54:34 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1772550504; cv=none; d=zohomail.com; s=zohoarc; b=R+muN9Zdf4WNGHk/KbHd1uIkOGU0AUQ+s6OItYyNNyYzzP0Z2UMPlrgnnhv2mKlbuNgOm5OPqubDp0hf01NBOQ2Kanby5Gpycsv3D1i/yVW6ndqAbgsLjsrLvzI9LCajN0eQOMLg7JnY5a+Sn4qGWdpq/4prx5QfhVQKoInYHs0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772550504; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=QzxKcQZIerx9h3cSC+oDOEcZgkGbOak7Y+u4U28djJA=; b=iJ97GqkZEiqWEweVKcrezxXdGTpqUiszpQ5UrWdu+Zd4gL5xdnglS76J7nvxLfhKrpjddWnluh2Lhe7qqiJoDhSDemnN+CJ5HOZtpPkrv9exi7sOkxIyugW2kyAcPaHDV15kr1k17Kqm32+CTgyfop8VCAX+FjY++uF16gvFdBg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1772550504806598.7273971931357; Tue, 3 Mar 2026 07:08:24 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vxRKM-0006Sy-Qb; Tue, 03 Mar 2026 10:06:26 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vxRKK-0006SQ-I0 for qemu-devel@nongnu.org; Tue, 03 Mar 2026 10:06:24 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vxRKJ-00023t-3p for qemu-devel@nongnu.org; Tue, 03 Mar 2026 10:06:24 -0500 Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-631-y8ElRsg_MU2Lo3M1LhEEOw-1; Tue, 03 Mar 2026 10:06:19 -0500 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C164F1800605; Tue, 3 Mar 2026 15:06:17 +0000 (UTC) Received: from toolbx.redhat.com (unknown [10.45.225.185]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 07BD11800745; Tue, 3 Mar 2026 15:06:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772550382; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QzxKcQZIerx9h3cSC+oDOEcZgkGbOak7Y+u4U28djJA=; b=YwILyQMl1BcCmOeXrAspGZ5nSSoQtuLHcSndLAwSTmqaQh/pI4O6+k1zEowHi617O7dY8I Xvb+RIjFINWMHM6qdUcTzh8pdBAntYMJI/0zRcOt6KGiIRjr3/2Kw6ghb3y9gF6Rr85OKl J+Kwa8iWZo4HAHqUkR6l1k+Ix6Yyrhg= X-MC-Unique: y8ElRsg_MU2Lo3M1LhEEOw-1 X-Mimecast-MFC-AGG-ID: y8ElRsg_MU2Lo3M1LhEEOw_1772550378 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Pierrick Bouvier , Zhao Liu Subject: [PULL 05/27] docs: simplify DiamondRapids CPU docs Date: Tue, 3 Mar 2026 15:05:42 +0000 Message-ID: <20260303150604.2402872-6-berrange@redhat.com> In-Reply-To: <20260303150604.2402872-1-berrange@redhat.com> References: <20260303150604.2402872-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -5 X-Spam_score: -0.6 X-Spam_bar: / X-Spam_report: (-0.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.322, RCVD_IN_VALIDITY_SAFE_BLOCKED=1.141, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1772550507198154100 This aligns the first line of the docs with the style used for previous CPU models, and simplifies the text in the remaining docs. Reviewed-by: Pierrick Bouvier Reviewed-by: Zhao Liu Signed-off-by: Daniel P. Berrang=C3=A9 --- docs/system/cpu-models-x86.rst.inc | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/docs/system/cpu-models-x86.rst.inc b/docs/system/cpu-models-x8= 6.rst.inc index 3605d05a8c..126c5a1972 100644 --- a/docs/system/cpu-models-x86.rst.inc +++ b/docs/system/cpu-models-x86.rst.inc @@ -72,17 +72,13 @@ compatibility is required, use the newest CPU model tha= t is compatible across all desired hosts. =20 ``DiamondRapids`` - Intel Xeon Processor. + Intel Xeon Processor (DiamondRapids, 2026) =20 - Diamond Rapids product has a topology which differs from previous Xeon - products. It does not support SMT, but instead features a dual core - module (DCM) architecture. It also has core building blocks (CBB - die - level in CPU topology). The cache hierarchy is organized as follows: - L1 i/d cache is per thread, L2 cache is per DCM, and L3 cache is per - CBB. This cache topology can be emulated for DiamondRapids CPU model - using the smp-cache configuration as shown below: - - Example: + This does not include SMT but allows the module (dual core module + - DCM) and die (core building block - CBB) topology levels. The + cache hierarchy is L1 i/d cache per thread, L2 cache per module, + and L3 cache per die, which can be emulated using the smp-cache + option: =20 :: =20 --=20 2.53.0