From patchwork Thu Mar 17 14:11:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tong Tiangen X-Patchwork-Id: 12784037 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 C456CC433EF for ; Thu, 17 Mar 2022 13:53:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5CDC48D0002; Thu, 17 Mar 2022 09:53:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 57CAF8D0001; Thu, 17 Mar 2022 09:53:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 445738D0002; Thu, 17 Mar 2022 09:53:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id 374CA8D0001 for ; Thu, 17 Mar 2022 09:53:27 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id D95D4219DA for ; Thu, 17 Mar 2022 13:53:26 +0000 (UTC) X-FDA: 79254020412.03.0D8BCAB Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf24.hostedemail.com (Postfix) with ESMTP id 98CED180031 for ; Thu, 17 Mar 2022 13:53:25 +0000 (UTC) Received: from kwepemi100001.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KK7l91yBszcb9Y; Thu, 17 Mar 2022 21:48:21 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by kwepemi100001.china.huawei.com (7.221.188.215) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Mar 2022 21:53:20 +0800 Received: from localhost.localdomain (10.175.112.125) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Mar 2022 21:53:19 +0800 From: Tong Tiangen To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , , "H. Peter Anvin" , Pasha Tatashin , Andrew Morton , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Palmer Dabbelt , Albert Ou CC: , , , , Tong Tiangen Subject: [PATCH -next 0/4]mm: page_table_check: add support on arm64 and riscv Date: Thu, 17 Mar 2022 14:11:59 +0000 Message-ID: <20220317141203.3646253-1-tongtiangen@huawei.com> X-Mailer: git-send-email 2.18.0.huawei.25 MIME-Version: 1.0 X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 98CED180031 Authentication-Results: imf24.hostedemail.com; dkim=none; spf=pass (imf24.hostedemail.com: domain of tongtiangen@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=tongtiangen@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com X-Rspam-User: X-Stat-Signature: fboo71u8xxew885hxd8qgijobehxgjzn X-HE-Tag: 1647525205-373130 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: Page table check performs extra verifications at the time when new pages become accessible from the userspace by getting their page table entries (PTEs PMDs etc.) added into the table. It is supported on X86[1]. This patchset made some simple changes and make it easier to support new architecture, then we support this feature on ARM64 and RISCV. [1]https://lore.kernel.org/lkml/20211123214814.3756047-1-pasha.tatashin@soleen.com/ Kefeng Wang (2): mm: page_table_check: move pxx_user_accessible_page into x86 arm64: mm: add support for page table check Tong Tiangen (2): mm: page_table_check: add hooks to public helpers riscv: mm: add support for page table check arch/arm64/Kconfig | 1 + arch/arm64/include/asm/pgtable.h | 63 ++++++++++++++++++++++++++++--- arch/riscv/Kconfig | 1 + arch/riscv/include/asm/pgtable.h | 64 +++++++++++++++++++++++++++++--- arch/x86/include/asm/pgtable.h | 29 ++++++++++----- include/linux/pgtable.h | 27 ++++++++++---- mm/page_table_check.c | 25 ++++--------- 7 files changed, 164 insertions(+), 46 deletions(-)