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 X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB365C433DB for ; Sat, 13 Mar 2021 08:48:17 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 5C75B64F16 for ; Sat, 13 Mar 2021 08:48:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C75B64F16 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ghiti.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XOz6SPDwyS3wnzkC2154KHXVG6pcZOOlcLZL3fwa6MY=; b=XJ7cI72CTTq3q9MauFdUqQQsD lvrx3WIh7G3oW+Ev5oM6OG0MyWxvo9OZ9e9QPTex6KdwE/wkVG9lJg0owlfsNrR032NRX/E0dRnN1 NEbtd5WlOl8hdS0U3ifRXLW1vLO0TeEL/ZIrYTpDelX3Jr6agG112SUZznNbcaoOyGdMJrwiygWcV S/zIGYgTNIeBzhZz3Zt6A6whbL+LcDu5nGoLz4hNkDDoYEfZQ1TZQaHhZBKB0km+UDWK9xkNMpGQI XRZgB1dZl/4DdbQ1lOIjYbehsuBAedy1IHFsh/ZNf+Pxzm9D9XvN6myzmApd4NSWjqqRhBIHhdVzV 9f2qifBVQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lKzwI-00D2cE-HZ; Sat, 13 Mar 2021 08:48:02 +0000 Received: from relay1-d.mail.gandi.net ([217.70.183.193]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lKzue-00D2RV-0b for linux-riscv@lists.infradead.org; Sat, 13 Mar 2021 08:46:35 +0000 X-Originating-IP: 2.7.49.219 Received: from debian.home (lfbn-lyo-1-457-219.w2-7.abo.wanadoo.fr [2.7.49.219]) (Authenticated sender: alex@ghiti.fr) by relay1-d.mail.gandi.net (Postfix) with ESMTPSA id 7EC3A240002; Sat, 13 Mar 2021 08:46:13 +0000 (UTC) From: Alexandre Ghiti To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Nylon Chen , Nick Hu , Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com Cc: Alexandre Ghiti , Palmer Dabbelt Subject: [PATCH v3 1/2] riscv: Ensure page table writes are flushed when initializing KASAN vmalloc Date: Sat, 13 Mar 2021 03:45:04 -0500 Message-Id: <20210313084505.16132-2-alex@ghiti.fr> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210313084505.16132-1-alex@ghiti.fr> References: <20210313084505.16132-1-alex@ghiti.fr> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210313_084623_039944_578204C1 X-CRM114-Status: UNSURE ( 6.30 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Make sure that writes to kernel page table during KASAN vmalloc initialization are made visible by adding a sfence.vma. Signed-off-by: Alexandre Ghiti Reviewed-by: Palmer Dabbelt --- arch/riscv/mm/kasan_init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index 1b968855d389..57bf4ae09361 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -187,6 +187,8 @@ void __init kasan_shallow_populate(void *start, void *end) } vaddr += PAGE_SIZE; } + + local_flush_tlb_all(); } void __init kasan_init(void) -- 2.20.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv