Received: by 2002:a25:b794:0:0:0:0:0 with SMTP id n20csp5121842ybh; Wed, 7 Aug 2019 00:50:56 -0700 (PDT) X-Google-Smtp-Source: APXvYqyRf5tklhCmFE3+Ab0yQ2OM46XEKon/bV5P7ZrycmiGu/6gZnmCKEe32ZLJdjoEtu3ESUjl X-Received: by 2002:aa7:90d4:: with SMTP id k20mr7769030pfk.78.1565164256231; Wed, 07 Aug 2019 00:50:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565164256; cv=none; d=google.com; s=arc-20160816; b=irXfF0fqYSEUXfQRYbOOzl1V0Tq3PChLb0ja3Lo0T8Pq1McyScRMKO/FFvYF3dAAmg LDyd9P7J//yr2sDKbLE1kc1W3z0Rlk0g85QqwZHjS10AIpwQE4HBDdqtVjMfKRPrpEWC 7Ppnjc4wG5yuee74Y7gjWfYUXHYMTojd6hJaG/Eg0Gd6YNN3wdlb+sxR0sY6f8LtOFQb WmuL+HK4aSOitNTK9YDrfU3hiMA0GuzsHjhyfsY9bt+pG9G066kRwBSPUc8sNV8H/7DE QIxXbV3AUIjUQf6fSqlKXYfjJBIAp9ygSS7u9ncnscjhhfiiuJ9lQTqaUYULmj09ZeqC rY4w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:subject:cc :to:from; bh=uW05hAgVYpGgQ1X271yyEo47Mr7cileauVQyzV1GAyU=; b=FIHaajvPz8Ztc7dEmHeYCaDzFky3+u4uPTm77Dkw5JZlWuwrf8i+NhjftUK8cTiAFI ZbZ0qgCYq68VWQEZtodnnqb3rxao+KdeqKPYbiciInKWy/uFfUqKJLDQaUaaF1L8jnra gVwz49QqFvdo7WheQNaRxccgOI2emlDwUkBbSC8Dw06ZKRjMymmbUBcG+2slaCC3xXIN j1Tk11wkNYBEgdEctkj/BJv0QyLBO31Ut7q5zjf2j0KeFFpu6ZwSQQZE31zklIvlJGkz LxfVBHXm6yIZnZC2UZfwOkPgFUsXcvCVZJGihEYxon2qGCn8ZyYQzFpCfHlXFP3uCt1C np4w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f10si16580757pjw.89.2019.08.07.00.50.40; Wed, 07 Aug 2019 00:50:56 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387499AbfHGHtu (ORCPT + 99 others); Wed, 7 Aug 2019 03:49:50 -0400 Received: from 59-120-53-16.HINET-IP.hinet.net ([59.120.53.16]:39580 "EHLO ATCSQR.andestech.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387476AbfHGHtu (ORCPT ); Wed, 7 Aug 2019 03:49:50 -0400 X-Greylist: delayed 1762 seconds by postgrey-1.27 at vger.kernel.org; Wed, 07 Aug 2019 03:49:50 EDT Received: from ATCSQR.andestech.com (localhost [127.0.0.2] (may be forged)) by ATCSQR.andestech.com with ESMTP id x7779Q7h027175 for ; Wed, 7 Aug 2019 15:09:26 +0800 (GMT-8) (envelope-from nickhu@andestech.com) Received: from mail.andestech.com (atcpcs16.andestech.com [10.0.1.222]) by ATCSQR.andestech.com with ESMTP id x7778Nlw027022; Wed, 7 Aug 2019 15:08:23 +0800 (GMT-8) (envelope-from nickhu@andestech.com) Received: from atcsqa06.andestech.com (10.0.15.65) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.123.3; Wed, 7 Aug 2019 15:19:21 +0800 From: Nick Hu To: , , , , , , , , , , , , , , , , , CC: Nick Hu Subject: [PATCH 0/2] KASAN support for RISC-V Date: Wed, 7 Aug 2019 15:19:13 +0800 Message-ID: X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.0.15.65] X-DNSRBL: X-MAIL: ATCSQR.andestech.com x7778Nlw027022 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org KASAN is an important runtime memory debugging feature in linux kernel which can detect use-after-free and out-of- bounds problems. There are two patches in this letter: 1. Porting the memmove string operation. 2. Porting the feature KASAN. Nick Hu (2): riscv: Add memmove string operation. riscv: Add KASAN support arch/riscv/Kconfig | 2 + arch/riscv/include/asm/kasan.h | 26 +++++++++ arch/riscv/include/asm/pgtable-64.h | 5 ++ arch/riscv/include/asm/string.h | 10 ++++ arch/riscv/kernel/head.S | 3 + arch/riscv/kernel/riscv_ksyms.c | 4 ++ arch/riscv/kernel/setup.c | 9 +++ arch/riscv/kernel/vmlinux.lds.S | 1 + arch/riscv/lib/Makefile | 1 + arch/riscv/lib/memcpy.S | 5 +- arch/riscv/lib/memmove.S | 64 ++++++++++++++++++++++ arch/riscv/lib/memset.S | 5 +- arch/riscv/mm/Makefile | 6 ++ arch/riscv/mm/kasan_init.c | 102 +++++++++++++++++++++++++++++++++++ 14 files changed, 239 insertions(+), 4 deletions(-) create mode 100644 arch/riscv/include/asm/kasan.h create mode 100644 arch/riscv/lib/memmove.S create mode 100644 arch/riscv/mm/kasan_init.c