lkml.org 
[lkml]   [2017]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 2/3] GHES: add a notify chain for process memory section
Date
Add a notify chain for process memory section, with
which other modules might do error recovery.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
---
drivers/acpi/apei/ghes.c | 10 ++++++++++
include/acpi/ghes.h | 8 ++++++++
2 files changed, 18 insertions(+)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 502335c..5b310b7 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -108,6 +108,9 @@ static inline bool is_hest_type_generic_v2(struct ghes *ghes)
static LIST_HEAD(ghes_hed);
static DEFINE_MUTEX(ghes_list_mutex);

+ATOMIC_NOTIFIER_HEAD(ghes_mem_err_chain);
+EXPORT_SYMBOL(ghes_mem_err_chain);
+
/*
* Because the memory area used to transfer hardware error information
* from BIOS to Linux can be determined only in NMI, IRQ or timer
@@ -479,6 +482,13 @@ static void ghes_do_proc(struct ghes *ghes,

if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
+ struct ghes_mem_err mem;
+
+ mem.notify_type = ghes->generic->notify.type;
+ mem.severity = gdata->error_severity;
+ mem.mem_err = mem_err;
+
+ atomic_notifier_call_chain(&ghes_mem_err_chain, 0, &mem);

ghes_edac_report_mem_error(ghes, sev, mem_err);

diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 9f26e01..df3f6d9 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -115,4 +115,12 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)

int ghes_notify_sea(void);

+struct ghes_mem_err {
+ int notify_type;
+ int severity;
+ struct cper_sec_mem_err *mem_err;
+};
+
+extern struct atomic_notifier_head ghes_mem_err_chain;
+
#endif /* GHES_H */
--
1.8.3.1
\
 
 \ /
  Last update: 2017-09-07 09:49    [W:0.053 / U:4.420 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site