[RFC PATCH v1 3/3] arm64/apei: get error address from memory section for recovery

From	Xie XiuQi <xiexiuqi@huawei.com>
Newsgroups	linux.kernel
Subject	[RFC PATCH v1 3/3] arm64/apei: get error address from memory section for recovery
Date	2017-09-01 12:40 +0200
Message-ID	<ukRwJ-2IO-1@gated-at.bofh.it> (permalink)
References	<ukRwJ-2IO-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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 <xiexiuqi@huawei.com>
---
 arch/arm64/kernel/ras.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/kernel/ras.c b/arch/arm64/kernel/ras.c
index 8562ec7..2b400b8 100644
--- a/arch/arm64/kernel/ras.c
+++ b/arch/arm64/kernel/ras.c
@@ -136,3 +136,20 @@ void arm_proc_error_check(struct ghes *ghes, struct cper_sec_proc_arm *err)
 	if (!ret)
 		set_thread_flag(TIF_SEA_NOTIFY);
 }
+
+void arch_apei_report_mem_error(struct ghes *ghes, int sev,
+				struct cper_sec_mem_err *mem)
+{
+	int ret = -1;
+
+	if ((ghes->generic->notify.type != ACPI_HEST_NOTIFY_SEA) ||
+	    (ghes->estatus->error_severity != CPER_SEV_RECOVERABLE))
+		return;
+
+	if (mem->validation_bits & CPER_MEM_VALID_PA) {
+		ret = sea_save_info(mem->physical_addr);
+	}
+
+	if (!ret)
+		set_thread_flag(TIF_SEA_NOTIFY);
+}
-- 
1.8.3.1

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[RFC PATCH v1 3/3] arm64/apei: get error address from memory section for recovery Xie XiuQi <xiexiuqi@huawei.com> - 2017-09-01 12:40 +0200

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