The CCIX 1.0 Base specification defines an internal agent error, for which the specific data present afte the header is vendor defined.
Signed-off-by: Jonathan Cameron <[email protected]> --- drivers/acpi/apei/ghes.c | 4 ++ drivers/firmware/efi/cper-ccix.c | 43 +++++++++++++++++++++ include/linux/cper.h | 29 +++++++++++++++ include/ras/ras_event.h | 64 ++++++++++++++++++++++++++++++++ 4 files changed, 140 insertions(+) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 2cabac7a344c7..0e21b2a9c3c50 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -520,6 +520,10 @@ static void ghes_handle_ccix_per(struct acpi_hest_generic_data *gdata, int sev) trace_ccix_link_error_event(payload, err_seq, sev, ccix_link_err_ven_len_get(payload)); break; + case CCIX_AGENT_INTERNAL_ERROR: + trace_ccix_agent_error_event(payload, err_seq, sev, + ccix_agent_err_ven_len_get(payload)); + break; default: /* Unknown error type */ pr_info("CCIX error of unknown or vendor defined type\n"); diff --git a/drivers/firmware/efi/cper-ccix.c b/drivers/firmware/efi/cper-ccix.c index 1a9661a6c49f4..316a7ad3fec69 100644 --- a/drivers/firmware/efi/cper-ccix.c +++ b/drivers/firmware/efi/cper-ccix.c @@ -583,6 +583,38 @@ static int cper_ccix_link_err_details(const char *pfx, return 0; } +static int cper_ccix_agent_err_details(const char *pfx, + struct acpi_hest_generic_data *gdata) +{ + struct cper_ccix_agent_err *full_agent_err; + struct cper_sec_ccix_agent_err *agent_err; + u16 vendor_data_len; + int i; + + if (gdata->error_data_length < sizeof(*full_agent_err)) + return -ENOSPC; + + full_agent_err = acpi_hest_get_payload(gdata); + + agent_err = &full_agent_err->agent_record; + + if (agent_err->validation_bits & CCIX_AGENT_INTERNAL_ERR_VENDOR_DATA_VALID) { + if (gdata->error_data_length < sizeof(*full_agent_err) + 4) + return -ENOSPC; + + vendor_data_len = agent_err->vendor_data[0] & GENMASK(15, 0); + if (gdata->error_data_length < + sizeof(*full_agent_err) + vendor_data_len) + return -ENOSPC; + + for (i = 0; i < vendor_data_len/4 - 1; i++) + printk("%s""Vendor%d: 0x%08x\n", pfx, i, + agent_err->vendor_data[i + 1]); + } + + return 0; +} + int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata) { struct cper_sec_ccix_header *header = acpi_hest_get_payload(gdata); @@ -652,6 +684,8 @@ int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata) return cper_ccix_port_err_details(pfx, gdata); case CCIX_LINK_ERROR: return cper_ccix_link_err_details(pfx, gdata); + case CCIX_AGENT_INTERNAL_ERROR: + return cper_ccix_agent_err_details(pfx, gdata); default: /* Vendor defined so no formatting be done */ break; @@ -871,3 +905,12 @@ const char *cper_ccix_link_err_unpack(struct trace_seq *p, return ret; } + +void cper_ccix_agent_err_pack(const struct cper_sec_ccix_agent_err *agent_record, + struct cper_ccix_agent_err_compact *cagent_err, + const u16 vendor_data_len, + u8 *vendor_data) +{ + cagent_err->validation_bits = agent_record->validation_bits; + memcpy(vendor_data, &agent_record->vendor_data[1], vendor_data_len); +} diff --git a/include/linux/cper.h b/include/linux/cper.h index 05d73604dfd2b..961c4ff7f0791 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -795,6 +795,30 @@ struct cper_ccix_link_err_compact { __u8 credit_type; }; +struct cper_sec_ccix_agent_err { + __u32 validation_bits; +#define CCIX_AGENT_INTERNAL_ERR_VENDOR_DATA_VALID BIT(0) + __u32 vendor_data[]; +}; + +struct cper_ccix_agent_err { + struct cper_sec_ccix_header header; + __u32 ccix_header[CCIX_PER_LOG_HEADER_DWS]; + struct cper_sec_ccix_agent_err agent_record; +}; + +static inline u16 ccix_agent_err_ven_len_get(struct cper_ccix_agent_err *agent_err) +{ + if (agent_err->agent_record.validation_bits & CCIX_AGENT_INTERNAL_ERR_VENDOR_DATA_VALID) + return agent_err->agent_record.vendor_data[0] & 0xFFFF; + else + return 0; +} + +struct cper_ccix_agent_err_compact { + __u32 validation_bits; +}; + /* Reset to default packing */ #pragma pack() @@ -847,6 +871,11 @@ void cper_ccix_link_err_pack(const struct cper_sec_ccix_link_error *link_record, const char *cper_ccix_link_err_unpack(struct trace_seq *p, struct cper_ccix_link_err_compact *clink_err); +void cper_ccix_agent_err_pack(const struct cper_sec_ccix_agent_err *agent_record, + struct cper_ccix_agent_err_compact *cagent_err, + const u16 vendor_data_len, + u8 *vendor_data); + struct acpi_hest_generic_data; int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata); diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index bfe1c64b9db0b..d09e5389a1e64 100644 --- a/include/ras/ras_event.h +++ b/include/ras/ras_event.h @@ -679,6 +679,70 @@ TRACE_EVENT(ccix_link_error_event, ) ); +TRACE_EVENT(ccix_agent_error_event, + TP_PROTO(struct cper_ccix_agent_err *err, + u32 err_seq, + u8 sev, u16 ven_len), + + TP_ARGS(err, err_seq, sev, ven_len), + + TP_STRUCT__entry( + __field(u32, err_seq) + __field(u8, sev) + __field(u8, sevdetail) + __field(u8, source) + __field(u8, component) + __field(u64, pa) + __field(u8, pa_mask_lsb) + __field(u16, vendor_data_length) + __field_struct(struct cper_ccix_agent_err_compact, data) + __dynamic_array(u8, vendor_data, ven_len) + ), + + TP_fast_assign( + __entry->err_seq = err_seq; + + __entry->sev = sev; + __entry->sevdetail = FIELD_GET(CCIX_PER_LOG_DW1_SEV_UE_M | + CCIX_PER_LOG_DW1_SEV_NO_COMM_M | + CCIX_PER_LOG_DW1_SEV_DEGRADED_M | + CCIX_PER_LOG_DW1_SEV_DEFFERABLE_M, + err->ccix_header[1]); + if (err->header.validation_bits & 0x1) + __entry->source = err->header.source_id; + else + __entry->source = ~0; + __entry->component = FIELD_GET(CCIX_PER_LOG_DW1_COMP_TYPE_M, + err->ccix_header[1]); + if (err->ccix_header[1] & CCIX_PER_LOG_DW1_ADDR_VAL_M) { + __entry->pa = (u64)err->ccix_header[2] << 32 | + (err->ccix_header[3] & 0xfffffffc); + __entry->pa_mask_lsb = err->ccix_header[4] & 0xff; + } else { + __entry->pa = ~0ull; + __entry->pa_mask_lsb = ~0; + } + /* Do not store the vendor data header length */ + __entry->vendor_data_length = ven_len ? ven_len - 4 : 0; + cper_ccix_agent_err_pack(&err->agent_record, &__entry->data, + __entry->vendor_data_length, + __get_dynamic_array(vendor_data)); + ), + + TP_printk("{%d} %s CCIX PER Agent Internal Error in %s SevUE:%d SevNoComm:%d SevDegraded:%d SevDeferred:%d physical addr: %016llx (mask: %x) vendor:%s", + __entry->err_seq, + cper_severity_str(__entry->sev), + cper_ccix_comp_type_str(__entry->component), + __entry->sevdetail & BIT(0) ? 1 : 0, + __entry->sevdetail & BIT(1) ? 1 : 0, + __entry->sevdetail & BIT(2) ? 1 : 0, + __entry->sevdetail & BIT(3) ? 1 : 0, + __entry->pa, + __entry->pa_mask_lsb, + __print_hex(__get_dynamic_array(vendor_data), __entry->vendor_data_length) + ) +); + /* * memory-failure recovery action result event * -- 2.20.1
