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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 6D54AC64E7B for ; Thu, 3 Dec 2020 06:50:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF8EF20758 for ; Thu, 3 Dec 2020 06:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729823AbgLCGuT (ORCPT ); Thu, 3 Dec 2020 01:50:19 -0500 Received: from atcsqr.andestech.com ([60.248.187.195]:56806 "EHLO ATCSQR.andestech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729114AbgLCGuR (ORCPT ); Thu, 3 Dec 2020 01:50:17 -0500 Received: from mail.andestech.com (atcpcs16.andestech.com [10.0.1.222]) by ATCSQR.andestech.com with ESMTP id 0B36njXT099106; Thu, 3 Dec 2020 14:49:45 +0800 (GMT-8) (envelope-from tesheng@andestech.com) Received: from atcfdc88.andestech.com (10.0.15.120) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.487.0; Thu, 3 Dec 2020 14:49:29 +0800 From: Eric Lin To: , , , , , , , , , , CC: Eric Lin , Alan Kao Subject: [PATCH v2 1/2] riscv/mm: Introduce a die_kernel_fault() helper function Date: Thu, 3 Dec 2020 14:48:25 +0800 Message-ID: <20201203064826.30832-2-tesheng@andestech.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20201203064826.30832-1-tesheng@andestech.com> References: <20201203064826.30832-1-tesheng@andestech.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.0.15.120] X-DNSRBL: X-MAIL: ATCSQR.andestech.com 0B36njXT099106 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Like arm64, this patch adds a die_kernel_fault() helper to ensure the same semantics for the different kernel faults. Signed-off-by: Eric Lin Cc: Alan Kao --- arch/riscv/mm/fault.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index 3c8b9e433c67..0bcfd0e1b39e 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -19,6 +19,19 @@ #include "../kernel/head.h" +static void die_kernel_fault(const char *msg, unsigned long addr, + struct pt_regs *regs) +{ + bust_spinlocks(1); + + pr_alert("Unable to handle kernel %s at virtual address " REG_FMT "\n", msg, + addr); + + bust_spinlocks(0); + die(regs, "Oops"); + do_exit(SIGKILL); +} + static inline void no_context(struct pt_regs *regs, unsigned long addr) { /* Are we prepared to handle this kernel fault? */ -- 2.17.0