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 9F5FE3BBA03 for ; Wed, 21 Jan 2026 12:04:01 +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=1768997043; cv=none; b=fLzH4ruvplU+1KULEYJTEUywy6mTAM8qRkMTWn3YW3780k/q1/2MI+TKnau8eCc3BteVifwdqxwuMwt1b/JFGTS8DdjD2NTD3q+eAYvat/+c8yuZ5rzx+NFuFKNyD3dkK2YiwnVUROnKMosVDoTSTDBJJavwj3iUsRxr21JpS4Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768997043; c=relaxed/simple; bh=+jp4EA/LJpXEjvUUwOp/IW2dKPncNMipPELUxCelavg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FUEaiug+Xnpcojkr8fYV9TKtGh8C+86aSDPwof+fW+lbu0adlQ9+J+1znXaKYiEJ53W4eWktI9jEsLU7/DRK+w6hZp2bmxnTQhO1bW+yX0WUJ5VPaw2hgnJO9h5uoua1JBdccTH+txaODxbjQiCRnQO1QCbVC/gDvPb5inxy8RY= 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=OznsSF27; 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="OznsSF27" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id D4D5A40E01A3; Wed, 21 Jan 2026 12:03:58 +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 3bUkssn9ZTO9; Wed, 21 Jan 2026 12:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1768997032; bh=j7j+sEH7m+daksLB+ZuBKTUOnUZv3+6k0Buxb2N1uXU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OznsSF27U01oslR9kU0n0fpXNwRZLjT9+bRMs2jZjuatdFyi620oVLJwHcrKWUWfE /4QAsI+bYZ8a/KAlMZ9knAt+u1iYykLD5Wfm/RDdcfswjfk5TXm4c0AL02Ud1jUsV8 j86lndZyXIcwcs0XszpGGoSOFS7YZ/2LDiEPEbaiWxVZSiBnamcM6F9yDH7h9i7LrT /Z1b6iNkIxDwOvAojYajFCrGesCIGckDIor1MbEgedABbX7xWdB24QK6DY8UlKelj7 rfa7LhB901D/XwX0BXX0AdQqXvjz+9+7wEIq8xpYKj21KTXdOsCoC1uV4r3VCUijfC Rz0zV1Y4t8SNBIZgyB5dw9IDjbTvd3nQNE9SqqZ7QUAL8I7Gzhno3dX94Dwj9w8qTt tKF7HPd4PyhEHNOTKJEIgdTKDqns4qhmBPFPfdNPrxSjpaHqmeGyfMZV2wjIwBFQaJ DPYWstKchyWBkqmiGZVKKUSngm7yf/G0nlyHHtfstDJZMre6lbWMoSylSI9nQKMYIo PSnlXsYwsKYzghhgCJi4oUXVhvdI14KDF8YCln1Gpcj+OYzGlyIOQkn0SmEaStJFL3 liaJ5zYNnHDA3/XaVsSKXrH6kq6Kjvr7eWAmlHUhFSW7jSYinRUqKEsW1hFjSygvwG OmTe4f58GoKeff9zIfsSkDKA= Received: from zn.tnic (pd953023b.dip0.t-ipconnect.de [217.83.2.59]) (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 UTF8SMTPSA id C1DB740E027D; Wed, 21 Jan 2026 12:03:23 +0000 (UTC) Date: Wed, 21 Jan 2026 13:03:18 +0100 From: Borislav Petkov To: Brendan Jackman Cc: Dave Hansen , Andy Lutomirski , Lorenzo Stoakes , "Liam R. Howlett" , Suren Baghdasaryan , Michal Hocko , Johannes Weiner , Zi Yan , Axel Rasmussen , Yuanchu Xie , Roman Gushchin , peterz@infradead.org, dave.hansen@linux.intel.com, mingo@redhat.com, tglx@linutronix.de, akpm@linux-foundation.org, david@redhat.com, derkling@google.com, junaids@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, reijiw@google.com, rientjes@google.com, rppt@kernel.org, vbabka@suse.cz, x86@kernel.org, Yosry Ahmed Subject: Re: [PATCH 05/21] x86/mm/pat: mirror direct map changes to ASI Message-ID: <20260121120318.GCaXDAhqoU8Q0PLTX8@fat_crate.local> References: <20250924-b4-asi-page-alloc-v1-0-2d861768041f@google.com> <20250924-b4-asi-page-alloc-v1-5-2d861768041f@google.com> <08338619-6aa1-4905-bdf8-bf1a90857307@intel.com> <19e5012a-3c58-4696-9e4e-39e2b7d2b5af@intel.com> <20260120163728.GDaW-vSLGY1P_E0DqS@fat_crate.local> <20260121112738.GBaXC4KgFQ2J667ea5@fat_crate.local> Precedence: bulk X-Mailing-List: linux-kernel@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: On Wed, Jan 21, 2026 at 11:49:13AM +0000, Brendan Jackman wrote: > Well, something has to manage those pagetables and that thing needs a > term to describe the stuff it's acting on. I.e. we need an adjective > better than "to-be-mapped-into-the-full-pagtable". > > Anyway, I think this will be an easier debate to have once we're looking > at actual code etc - I'm still debugging my page allocator changes to > support the guest_memfd thing and that code doesn't need to care about > "sensitivity" at all, there's just one address space and data is > "mapped" or "unmapped". So I propose we defer this conversation until > after that... Ok, sounds good. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette