From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 395341DED42; Wed, 2 Sep 2026 00:44:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788309857; cv=none; b=oDyg/0klI+S0RowU9VVticfpj3dxGQt5mL5BZWQ+Yn72yT8hs0g53Sl6O2gu/ioiraiHtmSN8Ll7oRHVAf79288segNFh6JPyOuCabQyNk7ewjVpFOFMzteMJX5NAwVw+MBO9IuuAmuqQt0hor/mOP6MST3vwGOWFm9uokCEd34= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788309857; c=relaxed/simple; bh=gJN+B8AdtIAqiqlPYkcdFewfpZtr61Ziw8lDiM2W14Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MdHYVF5XfBe28ep2/VfaaBkgFGq6/JtTCIkGwaFroJ8JIwAcMQPJEsnCewV2Hpw76HGHxh1NZu7uAw1j1589ZOwvW/dbypsufstk/2CAzDyulABz8Rv49KIT1ej+ZtlJcSXSxvZE/qHmGy1OZCjyagIVyeH+D1yooQAYduuITw4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=cv9O5YaB; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="cv9O5YaB" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 9257440E0301; Wed, 2 Sep 2026 00:44:12 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 0iyfOlrPVYVk; Wed, 2 Sep 2026 00:44:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1788309842; bh=rRTmD2cmwjFey9eoLHnKbN56gUWS7lz0BLKPZq8BhEw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cv9O5YaB93g3WoZST4mvqTMSq+7gWOyvK4ILugR7tqNCqSnNue/Pq263m73gx6YJI dYonXGUShfBTJVYLFMV+1WxFbM40Gw+wRlRd285BpPpJvno1Op4GkUml6IRkmudZBJ sYXFkOZCX8qevdk28ZgSWCNRyWn9Wv1K4GOGaQni5KbP5ybns4xoPxTBw0Ea8VCdEv 9mM8MKIf3m83yezypJLDVB7os+Kdjz4PchMkCz0J5icjZ1u8n8R4HDJ5nH062O6UfD 1j77AM5Y+Uqd8aMwp2eWJR/ROVvssrEnRb9FWqlht/FmqtiDRtp7SIy9ozBgfD6paw M5RswH/KUhDVZHd+D8E7V0waQr1n7HiJ57eUABR4M1qzDCE90vjkOxk1+9F9U6+ucn E7MPWnE+vkFhUO1ILs4V2Lge9Ysht8jyb75yPTGDJ6Xee6zfjDD67qZnFe0+DARC/v 0/7GAZi7GdQ5jyEGifVa/OEdQZYUkHUGHFhsYrouuwHKkbeMt0JQXNYGZlXMdOTVoy mXdiM069uL2sjQ5YZQ3py8CpbgUBo3z8kytvWwQi7nWkTtAGr6qnn8iLm4sN9hrjS/ GM/j4adw36dceom5lSNYU/823/aNDm9eiU4EcdjueNqnnFzcrK5jYe07JK5qhks4zO Hqysqw2GiT7RzUWVxAxREWU8= Received: from stx.tnic (unknown [IPv6:2600:1700:38ca:c00::e]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 014BA40E027F; Wed, 2 Sep 2026 00:43:44 +0000 (UTC) Date: Tue, 1 Sep 2026 17:43:41 -0700 From: Borislav Petkov To: Reinette Chatre Cc: Babu Moger , "Moger, Babu" , "Luck, Tony" , "x86@kernel.org" , "Dave.Martin@arm.com" , "james.morse@arm.com" , "corbet@lwn.net" , "skhan@linuxfoundation.org" , "tglx@kernel.org" , "mingo@redhat.com" , "dave.hansen@linux.intel.com" , "hpa@zytor.com" , "linux-kernel@vger.kernel.org" , "linux-doc@vger.kernel.org" , "Eranian, Stephane" , "peternewman@google.com" Subject: Re: [PATCH 1/2] x86/resctrl, Documentation: Keep mbm_assign_mode "default" on boot Message-ID: <20260902004341.GCapdxPZmGSjGacft2@fat_crate.local> References: <5f10ceab-5569-409b-8e78-c4a4f232489f@intel.com> <20260804191608.GDanI6eK2Q07w6pNcb@fat_crate.local> <98be93cc-f2d8-4bad-bbb0-f309e912054c@intel.com> <20260804224703.GFanJr52UbKBrCOTij@fat_crate.local> <112cebea-d455-4b75-847b-bb7d4aa4847d@intel.com> <1fe5cb09-aa2e-4b3d-9fbd-293d8e9f33d7@amd.com> <20260901232139.GBapdeA0fj1XjLsjAM@fat_crate.local> <4a81506d-87a1-428f-b797-d9391aedcc7a@intel.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <4a81506d-87a1-428f-b797-d9391aedcc7a@intel.com> On Tue, Sep 01, 2026 at 05:21:20PM -0700, Reinette Chatre wrote: > Boris: > I agreed to follow your guidance. I did have some nitpicks in the email that > you linked to and the discussion that followed created the impression with > me that you were considering other options. Specifically > > https://lore.kernel.org/lkml/20260805002138.GHanKCEmyMcvK8Xg4w@fat_crate.local/ > > is what I misunderstood as this topic still being open. My apologies. Ah, ok, sorry for the confusion. This was me gathering some other suggestions from Tony and the AET side. > To answer your question on how to move forward I thus think what is needed > is a minimized patch for easier backporting that is marked for stable. Because, yes, this should be the path forward currently. A minimal patch to fix the issue. Then, when the imminent situation is addressed, we can always go and try and improve things at leisure like we always do. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette