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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64154C433FE for ; Mon, 7 Nov 2022 11:25:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E4BD56B0071; Mon, 7 Nov 2022 06:25:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DFB816B0072; Mon, 7 Nov 2022 06:25:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CEA2A8E0001; Mon, 7 Nov 2022 06:25:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id C33CA6B0071 for ; Mon, 7 Nov 2022 06:25:56 -0500 (EST) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 9CCC7AB2C7 for ; Mon, 7 Nov 2022 11:25:56 +0000 (UTC) X-FDA: 80106416712.02.174950F Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by imf09.hostedemail.com (Postfix) with ESMTP id B75F6140008 for ; Mon, 7 Nov 2022 11:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1667820355; x=1699356355; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=P9d1UxIDzcvfcEyC1I1VQZDS9kk49QINfebehAyX6fU=; b=b34yZa425YLjHfZASSYxxQ/R4pDDErQVGDjVABn3UirTGTi44/M4xd+O aG6/C5tRKZcIGKuLRstapt96D/1Dn9iR+Fgf81ttr4GejTp/YuI59iWeW 8WWoKOBMxrwnbnx+hT0Zi4qy19EMpvSv55LljsyQRWEsW0kloHDntpD1k XpQFHmw7xqy+cb6KU/iZ+rL1rzV9SkJRoWiuzlqJ0sR3RSNsNGyAFh2Jt pdocHUkfnopJ8unFVvZFtpKi1SfVsQhgUAmzlmFbQp/5YgaHMKd5/ouuN TlLeTZMrDPuacSBMJJdxp6RQDh9fe2G6MmErUZLXI9yE6HEKbATbyu31B g==; X-IronPort-AV: E=McAfee;i="6500,9779,10523"; a="310389295" X-IronPort-AV: E=Sophos;i="5.96,143,1665471600"; d="scan'208";a="310389295" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2022 03:25:54 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10523"; a="669105094" X-IronPort-AV: E=Sophos;i="5.96,143,1665471600"; d="scan'208";a="669105094" Received: from vhavel-mobl.ger.corp.intel.com (HELO box.shutemov.name) ([10.252.46.204]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2022 03:25:49 -0800 Received: by box.shutemov.name (Postfix, from userid 1000) id 5486410964A; Mon, 7 Nov 2022 14:25:47 +0300 (+03) Date: Mon, 7 Nov 2022 14:25:47 +0300 From: "Kirill A. Shutemov" To: Dave Hansen , Andy Lutomirski , Peter Zijlstra Cc: x86@kernel.org, Kostya Serebryany , Andrey Ryabinin , Andrey Konovalov , Alexander Potapenko , Taras Madan , Dmitry Vyukov , "H . J . Lu" , Andi Kleen , Rick Edgecombe , Bharata B Rao , Jacob Pan , Ashok Raj , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCHv11 00/16] Linear Address Masking enabling Message-ID: <20221107112547.obnz775ponxjutrt@box.shutemov.name> References: <20221025001722.17466-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221025001722.17466-1-kirill.shutemov@linux.intel.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1667820356; a=rsa-sha256; cv=none; b=j/E59Ret91HX1HGevuymi1vU3/Gjaoe8DA+hnH4ZLGzFHaLelkRQ8ylrk66fHGJvJGZ8Lq 6L8tL9cLrtENdL25RVDS8qmRXPrSRZZ7M8uTJyv8AJy0GA4E0IoxeZbQjFWjvqg9fPLl6l F4qWgIEPeBlLpI3qrZzkXqlkq4oQXQ0= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=b34yZa42; spf=none (imf09.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 192.55.52.115) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1667820356; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=Q15esc4Z6zsRXIW6N+gnp/Y8C4O3iI/SAbsvbPhPibc=; b=buiofH9rHIiQglplBtoR1K/NXFX3aw89qHBQM3IEgcvRZ+CDRN9kgDl38pnmG00nxsJvq5 5Z/2Q/6nbcRXbRn3mThvvwcD2UEm+Um8UQx4oYU/fiGAQ70k/BmMQqkfQkwLgKtR5fVjXZ LdCl2N9pTCEYzL/26rNdO82/oGhpEW0= X-Stat-Signature: g11buns1qyjkenft1j5kbzn4u66u4e4h X-Rspamd-Queue-Id: B75F6140008 Authentication-Results: imf09.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=b34yZa42; spf=none (imf09.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 192.55.52.115) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1667820355-590285 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Oct 25, 2022 at 03:17:06AM +0300, Kirill A. Shutemov wrote: > Linear Address Masking[1] (LAM) modifies the checking that is applied to > 64-bit linear addresses, allowing software to use of the untranslated > address bits for metadata. > > The capability can be used for efficient address sanitizers (ASAN) > implementation and for optimizations in JITs and virtual machines. > > The patchset brings support for LAM for userspace addresses. Only LAM_U57 at > this time. > > Please review and consider applying. Ping? -- Kiryl Shutsemau / Kirill A. Shutemov