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 <[email protected]> --- 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
