From patchwork Tue Sep 5 11:06:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xie XiuQi X-Patchwork-Id: 9938443 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D4FEC600CB for ; Tue, 5 Sep 2017 11:06:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7D4F28925 for ; Tue, 5 Sep 2017 11:06:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BC4E128939; Tue, 5 Sep 2017 11:06:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 06CCF28936 for ; Tue, 5 Sep 2017 11:06:31 +0000 (UTC) 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:References:In-Reply-To: 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: List-Owner; bh=ogNCTMqsREJR/yRLb6nx/ZfkY1ngN9wPE/AC8sPTsUI=; b=h+ysIajhulOf8N h62BAH8NhobUBz3NjS74UBVdbV77NNMKHvzzmQo8xRvbtJD5pUNIJ1hibG7Zk81Pwlhbj6wD0+MGD iwDWptsKJXHYIXJDDl5O+ABknYEe2deH4o7mQkbv0C+8FCzdy3PxsmIQjeb7e6HTVmNVcsdAEX1AR kx00364lzu6/kCu8fZvin+jqIB5yXAPSZFOR8cV9nC6azLg28l+N37hY9UsYzxvFgMEAw/IaQxU15 wG49Iylj6iY/5zgacLCKMrU4FjWdTPd1y5B+Uqfa62BNSNmURl90gu1FZ0GQuOwV7gV9wwrXAgDiy CuSXGtartRJ7J742bqyA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dpBgZ-0006pF-0k; Tue, 05 Sep 2017 11:06:27 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dpBfu-0005rW-QN for linux-arm-kernel@lists.infradead.org; Tue, 05 Sep 2017 11:05:53 +0000 Received: from 172.30.72.60 (EHLO DGGEMS411-HUB.china.huawei.com) ([172.30.72.60]) by dggrg04-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DGO22120; Tue, 05 Sep 2017 19:05:21 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.301.0; Tue, 5 Sep 2017 19:05:11 +0800 From: Xie XiuQi To: , , , , , , , , , , , , Subject: [PATCH v2 3/3] arm64/ras: save error address from memory section for recovery Date: Tue, 5 Sep 2017 19:06:06 +0800 Message-ID: <1504609566-66318-4-git-send-email-xiexiuqi@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1504609566-66318-1-git-send-email-xiexiuqi@huawei.com> References: <1504609566-66318-1-git-send-email-xiexiuqi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.59AE84F1.018A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: d10d5a59900155dd676ed2049208751a X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170905_040547_943159_D058F767 X-CRM114-Status: UNSURE ( 8.68 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wangkefeng.wang@huawei.com, xiexiuqi@huawei.com, linux-kernel@vger.kernel.org, gengdongjiu@huawei.com, lijinyue@huawei.com, linux-acpi@vger.kernel.org, huawei.libin@huawei.com, guohanjun@huawei.com, zhengqiang10@huawei.com, wangxiongfeng2@huawei.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP In some platform, when SEA triggerred, physical address might be reported by memory section, so we save it for error recovery later. Signed-off-by: Xie XiuQi Tested-by: Wang Xiongfeng --- arch/arm64/kernel/ras.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/arch/arm64/kernel/ras.c b/arch/arm64/kernel/ras.c index 5710b2e..8a44c01 100644 --- a/arch/arm64/kernel/ras.c +++ b/arch/arm64/kernel/ras.c @@ -141,3 +141,34 @@ void arm_process_error(struct ghes *ghes, struct cper_sec_proc_arm *err) set_thread_flag(TIF_SEA_NOTIFY); } +int ghes_mem_err_callback(struct notifier_block *nb, unsigned long val, void *data) +{ + bool info_saved = false; + struct ghes_mem_err *ghes_mem = (struct ghes_mem_err *)data; + struct cper_sec_mem_err *mem_err = ghes_mem->mem_err; + + if ((ghes_mem->notify_type != ACPI_HEST_NOTIFY_SEA) || + (ghes_mem->severity != CPER_SEV_RECOVERABLE)) + return 0; + + if (mem_err->validation_bits & CPER_MEM_VALID_PA) { + info_saved = sea_save_info(mem_err->physical_addr); + } + + if (info_saved) + set_thread_flag(TIF_SEA_NOTIFY); + + return 0; +} + +static struct notifier_block ghes_mem_err_nb = { + .notifier_call = ghes_mem_err_callback, +}; + +static int arm64_err_recov_init(void) +{ + atomic_notifier_chain_register(&ghes_mem_err_chain, &ghes_mem_err_nb); + return 0; +} + +late_initcall(arm64_err_recov_init);