Introduce a new pstore_record type, PSTORE_TYPE_CPER_PCIE, so that
serialized PCIe errors can be restrived and saved as a file in pstore file
system. While the serialized PCIe errors is retrieved from ERST backend,
print AER information.
Signed-off-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>
---
drivers/acpi/apei/erst.c | 15 +++++++++++++++
fs/pstore/platform.c | 1 +
include/linux/pstore.h | 1 +
3 files changed, 17 insertions(+)
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 786d46c767ee..e0c44ea46acc 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -27,6 +27,8 @@
#include <linux/mm.h> /* kvfree() */
#include <acpi/apei.h>
#include <acpi/ghes.h>
+#include <linux/aer.h>
+#include <linux/pci.h>
#ifdef CONFIG_X86_MCE
/* only define CREATE_TRACE_POINTS once */
#include <trace/events/mce.h>
@@ -1077,6 +1079,19 @@ static ssize_t erst_reader(struct pstore_record *record)
record->type = PSTORE_TYPE_CPER_MEM;
arch_apei_report_mem_error(0x2, (struct cper_sec_mem_err *)rcd->data);
atomic_notifier_call_chain(&ghes_report_chain, 0x2, rcd->data);
+ } else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SEC_PCIE)) {
+
+ struct cper_sec_pcie *pcie_err = (struct cper_sec_pcie *)rcd->data;
+ unsigned int devfn = PCI_DEVFN(pcie_err->device_id.device,
+ pcie_err->device_id.function);
+ struct pci_dev *pdev = pci_get_domain_bus_and_slot(
+ pcie_err->device_id.segment, pcie_err->device_id.bus,
+ devfn);
+
+ record->type = PSTORE_TYPE_CPER_PCIE;
+ cper_print_aer(
+ pdev, AER_FATAL,
+ (struct aer_capability_regs *)pcie_err->aer_info);
}
else
record->type = PSTORE_TYPE_MAX;
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 4e63ac8be755..40a062546fe4 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -52,6 +52,7 @@ static const char * const pstore_type_names[] = {
"pmsg",
"powerpc-opal",
"cper-mem",
+ "cper-pcie",
};
static int pstore_new_entry;
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index d18ecaacd1b5..e63f51e9c22e 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -42,6 +42,7 @@ enum pstore_type_id {
/* APEI section */
PSTORE_TYPE_CPER_MEM = 9,
+ PSTORE_TYPE_CPER_PCIE = 10,
/* End of the list */
PSTORE_TYPE_MAX
--
2.41.0
