From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1DBCFF47CA4 for ; Thu, 5 Mar 2026 17:50:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyCod-0002bb-PK; Thu, 05 Mar 2026 12:48:51 -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 1vyCoH-0002A2-A9 for qemu-rust@nongnu.org; Thu, 05 Mar 2026 12:48:31 -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 1vyCoE-0002A2-WB for qemu-rust@nongnu.org; Thu, 05 Mar 2026 12:48:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772732905; 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=iUDSiH+M/7bvVEccvyv0shj+2uaP6drztQ3h2kS4MshHinvj/tnJyc08yJXpcGFbpNV8Nw tbnnzlrUOJd7DQOMo7SrCMW8Q1bWjocDs74bZwpjvuCKvUFHmXbB7tdXnHiyA610DBLka9 E6R/zLgAmpxrirJOkxGX7eop1dZhRNQ= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-107-er88v9eSOWGEK41uH8U2Sg-1; Thu, 05 Mar 2026 12:48:22 -0500 X-MC-Unique: er88v9eSOWGEK41uH8U2Sg-1 X-Mimecast-MFC-AGG-ID: er88v9eSOWGEK41uH8U2Sg_1772732900 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 75A3719560A7; Thu, 5 Mar 2026 17:48:20 +0000 (UTC) Received: from toolbx.redhat.com (unknown [10.44.34.61]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4A72E1955D71; Thu, 5 Mar 2026 17:48:15 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Markus Armbruster , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , devel@lists.libvirt.org, qemu-rust@nongnu.org, "Dr. David Alan Gilbert" , Gerd Hoffmann , Christian Schoenebeck , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Manos Pitsidianakis , Eduardo Habkost , Pierrick Bouvier , Paolo Bonzini , Stefan Weil , Zhao Liu Subject: [PULL 05/27] docs: simplify DiamondRapids CPU docs Date: Thu, 5 Mar 2026 17:47:21 +0000 Message-ID: <20260305174743.3084606-6-berrange@redhat.com> In-Reply-To: <20260305174743.3084606-1-berrange@redhat.com> References: <20260305174743.3084606-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-MFC-PROC-ID: g9IAlze51jIQK6E_Dzj_HQJOEzD5uaMhXqaixG2D7zU_1772732900 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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=0.892, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.622, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-rust@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: QEMU Rust-related patches and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org Sender: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org 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. Berrangé --- 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-x86.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 that is compatible across all desired hosts. ``DiamondRapids`` - Intel Xeon Processor. + Intel Xeon Processor (DiamondRapids, 2026) - 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: :: -- 2.53.0