From patchwork Wed Oct 2 06:16:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Hu X-Patchwork-Id: 11170447 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BF20E16B1 for ; Wed, 2 Oct 2019 06:17:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7F64F205C9 for ; Wed, 2 Oct 2019 06:17:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="JjxXuWfo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7F64F205C9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=andestech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=jN9kCJfvHalit96q6/O7/nngKFMEbTGLcAkqVWOKw3Y=; b=JjxXuWfoqMH10I UhgSIJ44W4MeXyoR+aqrzD5WuXnyEUt64FcFa9VRerp0OjWuY+4WlqL/ccWMhE87AbxwaiWsNxPD4 k4wNp9hzHX+kGBpPHlKYfw+MTrnE/wr/kkosjMSPaaPHHYOx2I0IsZywTVjyn4jzfOGXC3ck2XA9a TamxLoz9wDEoxxoSJv/oh7dArHEdYo6TEcTEhOS56gpX0iYXpkQ2zeV3J8c8PJs/qjteVapd/TtcS Mj7EznNAAkJUPSxLBEaghlDzbIVX0r+rhleYY0FMRsKyvoLR1wvtPOhdHEYcufBdRDKlCi7CD4oCt jxVdUBbU78dIZDW95uug==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iFXwq-0002DP-17; Wed, 02 Oct 2019 06:17:16 +0000 Received: from 59-120-53-16.hinet-ip.hinet.net ([59.120.53.16] helo=ATCSQR.andestech.com) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iFXwn-0002CN-2y for linux-riscv@lists.infradead.org; Wed, 02 Oct 2019 06:17:14 +0000 Received: from mail.andestech.com (atcpcs16.andestech.com [10.0.1.222]) by ATCSQR.andestech.com with ESMTP id x9260iVl065604; Wed, 2 Oct 2019 14:00:44 +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, 2 Oct 2019 14:16:11 +0800 From: Nick Hu To: , , , , , , , , , , , , , , , , , Subject: [PATCH v2 0/2] KASAN support for RISC-V Date: Wed, 2 Oct 2019 14:16:03 +0800 Message-ID: X-Mailer: git-send-email 2.17.0 MIME-Version: 1.0 X-Originating-IP: [10.0.15.65] X-DNSRBL: X-MAIL: ATCSQR.andestech.com x9260iVl065604 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191001_231713_377335_D39B1FD4 X-CRM114-Status: UNSURE ( 7.48 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.4 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 TVD_RCVD_IP Message was received from an IP address 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.4 RDNS_DYNAMIC Delivered to internal network by host with dynamic-looking rDNS X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nick Hu Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org KASAN is an important runtime memory debugging feature in linux kernel which can detect use-after-free and out-of- bounds problems. Changes in v2: - Remove the porting of memmove and exclude the check instead. - Fix some code noted by Christoph Hellwig Nick Hu (2): kasan: Archs don't check memmove if not support it. riscv: Add KASAN support arch/riscv/Kconfig | 1 + arch/riscv/include/asm/kasan.h | 27 ++++++++ arch/riscv/include/asm/pgtable-64.h | 5 ++ arch/riscv/include/asm/string.h | 9 +++ arch/riscv/kernel/head.S | 3 + arch/riscv/kernel/riscv_ksyms.c | 2 + arch/riscv/kernel/setup.c | 5 ++ arch/riscv/kernel/vmlinux.lds.S | 1 + arch/riscv/lib/memcpy.S | 5 +- arch/riscv/lib/memset.S | 5 +- arch/riscv/mm/Makefile | 6 ++ arch/riscv/mm/kasan_init.c | 104 ++++++++++++++++++++++++++++ mm/kasan/common.c | 2 + 13 files changed, 171 insertions(+), 4 deletions(-) create mode 100644 arch/riscv/include/asm/kasan.h create mode 100644 arch/riscv/mm/kasan_init.c