lkml.org 
[lkml]   [2020]   [Oct]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 7/7] ACPI / APEI: Add reporting ARM64 CPU correctable errors to the CEC
Date
Add reporting ARM64 CPU correctable errors to the RAS correctable
errors collector(CEC).

ARM processor error types are cache/TLB/bus errors.
Any of the above error types should not be consider for the
error collection and CPU core isolation?

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
---
drivers/acpi/apei/ghes.c | 36 +++++++++++++++++++++++++++++++++---
1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 81bf71b10d44..3cecb457d352 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -511,6 +511,38 @@ static void ghes_handle_aer(struct acpi_hest_generic_data *gdata)
#endif
}

+static void ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata)
+{
+ struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
+ struct cper_arm_err_info *err_info;
+ int sec_sev;
+ int cpu, i, ret;
+
+ log_arm_hw_error(err);
+
+ sec_sev = ghes_severity(gdata->error_severity);
+ if (sec_sev != GHES_SEV_CORRECTED)
+ return;
+
+#if defined(CONFIG_ARM64)
+ cpu = get_logical_index(err->mpidr);
+ if (cpu == -EINVAL)
+ return;
+
+ /* ARM processor error types are cache/tlb/bus errors.
+ * Any of the above error types should not be consider for the
+ * error collection and CPU core isolation?
+ */
+ err_info = (struct cper_arm_err_info *)(err + 1);
+ for (i = 0; i < err->err_info_num; i++) {
+ ret = cec_cpu_add_elem(cpu, err_info->multiple_error + 1);
+ if (ret)
+ break;
+ err_info += 1;
+ }
+#endif
+}
+
static bool ghes_do_proc(struct ghes *ghes,
const struct acpi_hest_generic_status *estatus)
{
@@ -543,9 +575,7 @@ static bool ghes_do_proc(struct ghes *ghes,
ghes_handle_aer(gdata);
}
else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
- struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
-
- log_arm_hw_error(err);
+ ghes_handle_arm_hw_error(gdata);
} else {
void *err = acpi_hest_get_payload(gdata);

--
2.17.1

\
 
 \ /
  Last update: 2020-10-02 14:33    [W:0.091 / U:1.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site