[PATCH v5 2/3] GHES: add a notify chain for process memory section
From: Xie XiuQi <hidden>
Date: 2018-01-26 12:25:20
Also in:
linux-acpi, lkml
Subsystem:
acpi, acpi apei, acpi component architecture (acpica), the rest · Maintainers:
"Rafael J. Wysocki", Saket Dumbre, Linus Torvalds
Add a notify chain for process memory section, with which other modules might do error recovery. Signed-off-by: Xie XiuQi <redacted> Tested-by: Wang Xiongfeng <redacted> Tested-by: Tyler Baicar <redacted> --- 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 cff671d..1f0ebfb 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c@@ -109,6 +109,9 @@ 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
@@ -441,6 +444,13 @@ 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 d626367..921ebf1 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h@@ -124,4 +124,12 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata) extern void ghes_arm_process_error(struct ghes *ghes, struct cper_sec_proc_arm *err); +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