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

Xie XiuQi
2017-09-01T10:32:01Z

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