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 79B3CEDF04C for ; Thu, 12 Feb 2026 08:04:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vqRgp-0004hG-Ve; Thu, 12 Feb 2026 03:04:43 -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 1vqRgo-0004h8-AB for qemu-devel@nongnu.org; Thu, 12 Feb 2026 03:04:42 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vqRgm-0007px-HS for qemu-devel@nongnu.org; Thu, 12 Feb 2026 03:04:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1770883479; h=from:from:reply-to: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=t4H4KAuRcb/xwCExt8j0v5UOYOjw9rnY4BeRAcXPCeI=; b=QPwQgdyQxHFzjgLqH1j3OsEhzH6+PHPdybHflpBGY8fVwMAQsEgHtgLUDZmlcAzQ1csaqz qZ6wOFrXA4AarNPx0RCJmffQs2u38fbbqZ5FOqSCD84lzA3p12xVGC+3bWUyq3+Hjhop9P p3YEGwHCxQ8IRllpfoUeRWTDQQv+U3g= Received: from mx-prod-mc-05.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-54-NiLdvgC2PtODxVXTWYgxHA-1; Thu, 12 Feb 2026 03:04:36 -0500 X-MC-Unique: NiLdvgC2PtODxVXTWYgxHA-1 X-Mimecast-MFC-AGG-ID: NiLdvgC2PtODxVXTWYgxHA_1770883475 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id CC9DE1955D8F; Thu, 12 Feb 2026 08:04:34 +0000 (UTC) Received: from redhat.com (unknown [10.44.32.206]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8BF2C19560B7; Thu, 12 Feb 2026 08:04:32 +0000 (UTC) Date: Thu, 12 Feb 2026 08:04:29 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Zhao Liu Cc: qemu-devel@nongnu.org, Eduardo Habkost , Paolo Bonzini , Richard Henderson , Pierrick Bouvier Subject: Re: [PATCH] docs: simplify DiamondRapids CPU docs Message-ID: References: <20260211180021.1057478-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/2.2.14 (2025-02-20) X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, Feb 12, 2026 at 10:30:56AM +0800, Zhao Liu wrote: > On Wed, Feb 11, 2026 at 06:00:21PM +0000, Daniel P. Berrangé wrote: > > Date: Wed, 11 Feb 2026 18:00:21 +0000 > > From: "Daniel P. Berrangé" > > Subject: [PATCH] docs: simplify DiamondRapids CPU docs > > > > This aligns the first line of the docs with the style used for previous > > CPU models, and simplifies the text in the remaining docs. > > > > 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..9d4486c978 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, 2025) > > Maybe 2026? I think the year should be the release data instead of patch > data. Yes, its supposed to be CPU release date. > > > - 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: > > Otherwise, look good to me, and thanks! > > Reviewed-by: Zhao Liu > > Regards, > Zhao > With regards, Daniel -- |: https://berrange.com ~~ https://hachyderm.io/@berrange :| |: https://libvirt.org ~~ https://entangle-photo.org :| |: https://pixelfed.art/berrange ~~ https://fstop138.berrange.com :|