From: Luck, Tony Date: Mon, 28 Oct 2013 21:06:55 +0000 (-0700) Subject: Move cper.c from drivers/acpi/apei to drivers/firmware/efi X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7ea6c6c15ee16f4c7f5eeaa62f77e696f85ae0d1;p=openwrt%2Fstaging%2Fblogic.git Move cper.c from drivers/acpi/apei to drivers/firmware/efi cper.c contains code to decode and print "Common Platform Error Records". Originally added under drivers/acpi/apei because the only user was in that same directory - but now we have another consumer, and we shouldn't have to force CONFIG_ACPI_APEI get access to this code. Since CPER is defined in the UEFI specification - the logical home for this code is under drivers/firmware/efi/ Acked-by: Matt Fleming Acked-by: Ingo Molnar Signed-off-by: Tony Luck --- diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 252f0e818a49..08eadb4a57cb 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -374,7 +374,9 @@ source "drivers/acpi/apei/Kconfig" config ACPI_EXTLOG tristate "Extended Error Log support" - depends on X86_MCE && ACPI_APEI + depends on X86_MCE + select EFI + select UEFI_CPER default n help Certain usages such as Predictive Failure Analysis (PFA) require diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig index f0c1ce95a0ec..786294bb682c 100644 --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig @@ -2,6 +2,8 @@ config ACPI_APEI bool "ACPI Platform Error Interface (APEI)" select MISC_FILESYSTEMS select PSTORE + select EFI + select UEFI_CPER depends on X86 help APEI allows to report errors (for example from the chipset) diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile index d1d1bc0a4ee1..5d575a955940 100644 --- a/drivers/acpi/apei/Makefile +++ b/drivers/acpi/apei/Makefile @@ -3,4 +3,4 @@ obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o obj-$(CONFIG_ACPI_APEI_ERST_DEBUG) += erst-dbg.o -apei-y := apei-base.o hest.o cper.o erst.o +apei-y := apei-base.o hest.o erst.o diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c deleted file mode 100644 index 1491dd4f08f9..000000000000 --- a/drivers/acpi/apei/cper.c +++ /dev/null @@ -1,410 +0,0 @@ -/* - * UEFI Common Platform Error Record (CPER) support - * - * Copyright (C) 2010, Intel Corp. - * Author: Huang Ying - * - * CPER is the format used to describe platform hardware error by - * various tables, such as ERST, BERT and HEST etc. - * - * For more information about CPER, please refer to Appendix N of UEFI - * Specification version 2.4. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define INDENT_SP " " -/* - * CPER record ID need to be unique even after reboot, because record - * ID is used as index for ERST storage, while CPER records from - * multiple boot may co-exist in ERST. - */ -u64 cper_next_record_id(void) -{ - static atomic64_t seq; - - if (!atomic64_read(&seq)) - atomic64_set(&seq, ((u64)get_seconds()) << 32); - - return atomic64_inc_return(&seq); -} -EXPORT_SYMBOL_GPL(cper_next_record_id); - -static const char *cper_severity_strs[] = { - "recoverable", - "fatal", - "corrected", - "info", -}; - -static const char *cper_severity_str(unsigned int severity) -{ - return severity < ARRAY_SIZE(cper_severity_strs) ? - cper_severity_strs[severity] : "unknown"; -} - -/* - * cper_print_bits - print strings for set bits - * @pfx: prefix for each line, including log level and prefix string - * @bits: bit mask - * @strs: string array, indexed by bit position - * @strs_size: size of the string array: @strs - * - * For each set bit in @bits, print the corresponding string in @strs. - * If the output length is longer than 80, multiple line will be - * printed, with @pfx is printed at the beginning of each line. - */ -void cper_print_bits(const char *pfx, unsigned int bits, - const char * const strs[], unsigned int strs_size) -{ - int i, len = 0; - const char *str; - char buf[84]; - - for (i = 0; i < strs_size; i++) { - if (!(bits & (1U << i))) - continue; - str = strs[i]; - if (!str) - continue; - if (len && len + strlen(str) + 2 > 80) { - printk("%s\n", buf); - len = 0; - } - if (!len) - len = snprintf(buf, sizeof(buf), "%s%s", pfx, str); - else - len += snprintf(buf+len, sizeof(buf)-len, ", %s", str); - } - if (len) - printk("%s\n", buf); -} - -static const char * const cper_proc_type_strs[] = { - "IA32/X64", - "IA64", -}; - -static const char * const cper_proc_isa_strs[] = { - "IA32", - "IA64", - "X64", -}; - -static const char * const cper_proc_error_type_strs[] = { - "cache error", - "TLB error", - "bus error", - "micro-architectural error", -}; - -static const char * const cper_proc_op_strs[] = { - "unknown or generic", - "data read", - "data write", - "instruction execution", -}; - -static const char * const cper_proc_flag_strs[] = { - "restartable", - "precise IP", - "overflow", - "corrected", -}; - -static void cper_print_proc_generic(const char *pfx, - const struct cper_sec_proc_generic *proc) -{ - if (proc->validation_bits & CPER_PROC_VALID_TYPE) - printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type, - proc->proc_type < ARRAY_SIZE(cper_proc_type_strs) ? - cper_proc_type_strs[proc->proc_type] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_ISA) - printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa, - proc->proc_isa < ARRAY_SIZE(cper_proc_isa_strs) ? - cper_proc_isa_strs[proc->proc_isa] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) { - printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type); - cper_print_bits(pfx, proc->proc_error_type, - cper_proc_error_type_strs, - ARRAY_SIZE(cper_proc_error_type_strs)); - } - if (proc->validation_bits & CPER_PROC_VALID_OPERATION) - printk("%s""operation: %d, %s\n", pfx, proc->operation, - proc->operation < ARRAY_SIZE(cper_proc_op_strs) ? - cper_proc_op_strs[proc->operation] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_FLAGS) { - printk("%s""flags: 0x%02x\n", pfx, proc->flags); - cper_print_bits(pfx, proc->flags, cper_proc_flag_strs, - ARRAY_SIZE(cper_proc_flag_strs)); - } - if (proc->validation_bits & CPER_PROC_VALID_LEVEL) - printk("%s""level: %d\n", pfx, proc->level); - if (proc->validation_bits & CPER_PROC_VALID_VERSION) - printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version); - if (proc->validation_bits & CPER_PROC_VALID_ID) - printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id); - if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS) - printk("%s""target_address: 0x%016llx\n", - pfx, proc->target_addr); - if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID) - printk("%s""requestor_id: 0x%016llx\n", - pfx, proc->requestor_id); - if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID) - printk("%s""responder_id: 0x%016llx\n", - pfx, proc->responder_id); - if (proc->validation_bits & CPER_PROC_VALID_IP) - printk("%s""IP: 0x%016llx\n", pfx, proc->ip); -} - -static const char *cper_mem_err_type_strs[] = { - "unknown", - "no error", - "single-bit ECC", - "multi-bit ECC", - "single-symbol chipkill ECC", - "multi-symbol chipkill ECC", - "master abort", - "target abort", - "parity error", - "watchdog timeout", - "invalid address", - "mirror Broken", - "memory sparing", - "scrub corrected error", - "scrub uncorrected error", - "physical memory map-out event", -}; - -static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem) -{ - if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS) - printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status); - if (mem->validation_bits & CPER_MEM_VALID_PA) - printk("%s""physical_address: 0x%016llx\n", - pfx, mem->physical_addr); - if (mem->validation_bits & CPER_MEM_VALID_PA_MASK) - printk("%s""physical_address_mask: 0x%016llx\n", - pfx, mem->physical_addr_mask); - if (mem->validation_bits & CPER_MEM_VALID_NODE) - pr_debug("node: %d\n", mem->node); - if (mem->validation_bits & CPER_MEM_VALID_CARD) - pr_debug("card: %d\n", mem->card); - if (mem->validation_bits & CPER_MEM_VALID_MODULE) - pr_debug("module: %d\n", mem->module); - if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER) - pr_debug("rank: %d\n", mem->rank); - if (mem->validation_bits & CPER_MEM_VALID_BANK) - pr_debug("bank: %d\n", mem->bank); - if (mem->validation_bits & CPER_MEM_VALID_DEVICE) - pr_debug("device: %d\n", mem->device); - if (mem->validation_bits & CPER_MEM_VALID_ROW) - pr_debug("row: %d\n", mem->row); - if (mem->validation_bits & CPER_MEM_VALID_COLUMN) - pr_debug("column: %d\n", mem->column); - if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION) - pr_debug("bit_position: %d\n", mem->bit_pos); - if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID) - pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id); - if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID) - pr_debug("responder_id: 0x%016llx\n", mem->responder_id); - if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID) - pr_debug("target_id: 0x%016llx\n", mem->target_id); - if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) { - u8 etype = mem->error_type; - printk("%s""error_type: %d, %s\n", pfx, etype, - etype < ARRAY_SIZE(cper_mem_err_type_strs) ? - cper_mem_err_type_strs[etype] : "unknown"); - } - if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) { - const char *bank = NULL, *device = NULL; - dmi_memdev_name(mem->mem_dev_handle, &bank, &device); - if (bank != NULL && device != NULL) - printk("%s""DIMM location: %s %s", pfx, bank, device); - else - printk("%s""DIMM DMI handle: 0x%.4x", - pfx, mem->mem_dev_handle); - } -} - -static const char *cper_pcie_port_type_strs[] = { - "PCIe end point", - "legacy PCI end point", - "unknown", - "unknown", - "root port", - "upstream switch port", - "downstream switch port", - "PCIe to PCI/PCI-X bridge", - "PCI/PCI-X to PCIe bridge", - "root complex integrated endpoint device", - "root complex event collector", -}; - -static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, - const struct acpi_generic_data *gdata) -{ - if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE) - printk("%s""port_type: %d, %s\n", pfx, pcie->port_type, - pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ? - cper_pcie_port_type_strs[pcie->port_type] : "unknown"); - if (pcie->validation_bits & CPER_PCIE_VALID_VERSION) - printk("%s""version: %d.%d\n", pfx, - pcie->version.major, pcie->version.minor); - if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS) - printk("%s""command: 0x%04x, status: 0x%04x\n", pfx, - pcie->command, pcie->status); - if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) { - const __u8 *p; - printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx, - pcie->device_id.segment, pcie->device_id.bus, - pcie->device_id.device, pcie->device_id.function); - printk("%s""slot: %d\n", pfx, - pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT); - printk("%s""secondary_bus: 0x%02x\n", pfx, - pcie->device_id.secondary_bus); - printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx, - pcie->device_id.vendor_id, pcie->device_id.device_id); - p = pcie->device_id.class_code; - printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]); - } - if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER) - printk("%s""serial number: 0x%04x, 0x%04x\n", pfx, - pcie->serial_number.lower, pcie->serial_number.upper); - if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS) - printk( - "%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n", - pfx, pcie->bridge.secondary_status, pcie->bridge.control); -} - -static void cper_estatus_print_section( - const char *pfx, const struct acpi_generic_data *gdata, int sec_no) -{ - uuid_le *sec_type = (uuid_le *)gdata->section_type; - __u16 severity; - char newpfx[64]; - - severity = gdata->error_severity; - printk("%s""Error %d, type: %s\n", pfx, sec_no, - cper_severity_str(severity)); - if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) - printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id); - if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) - printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text); - - snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); - if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) { - struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1); - printk("%s""section_type: general processor error\n", newpfx); - if (gdata->error_data_length >= sizeof(*proc_err)) - cper_print_proc_generic(newpfx, proc_err); - else - goto err_section_too_small; - } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) { - struct cper_sec_mem_err *mem_err = (void *)(gdata + 1); - printk("%s""section_type: memory error\n", newpfx); - if (gdata->error_data_length >= sizeof(*mem_err)) - cper_print_mem(newpfx, mem_err); - else - goto err_section_too_small; - } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) { - struct cper_sec_pcie *pcie = (void *)(gdata + 1); - printk("%s""section_type: PCIe error\n", newpfx); - if (gdata->error_data_length >= sizeof(*pcie)) - cper_print_pcie(newpfx, pcie, gdata); - else - goto err_section_too_small; - } else - printk("%s""section type: unknown, %pUl\n", newpfx, sec_type); - - return; - -err_section_too_small: - pr_err(FW_WARN "error section length is too small\n"); -} - -void cper_estatus_print(const char *pfx, - const struct acpi_generic_status *estatus) -{ - struct acpi_generic_data *gdata; - unsigned int data_len, gedata_len; - int sec_no = 0; - char newpfx[64]; - __u16 severity; - - severity = estatus->error_severity; - if (severity == CPER_SEV_CORRECTED) - printk("%s%s\n", pfx, - "It has been corrected by h/w " - "and requires no further action"); - printk("%s""event severity: %s\n", pfx, cper_severity_str(severity)); - data_len = estatus->data_length; - gdata = (struct acpi_generic_data *)(estatus + 1); - snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); - while (data_len >= sizeof(*gdata)) { - gedata_len = gdata->error_data_length; - cper_estatus_print_section(newpfx, gdata, sec_no); - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; - sec_no++; - } -} -EXPORT_SYMBOL_GPL(cper_estatus_print); - -int cper_estatus_check_header(const struct acpi_generic_status *estatus) -{ - if (estatus->data_length && - estatus->data_length < sizeof(struct acpi_generic_data)) - return -EINVAL; - if (estatus->raw_data_length && - estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length) - return -EINVAL; - - return 0; -} -EXPORT_SYMBOL_GPL(cper_estatus_check_header); - -int cper_estatus_check(const struct acpi_generic_status *estatus) -{ - struct acpi_generic_data *gdata; - unsigned int data_len, gedata_len; - int rc; - - rc = cper_estatus_check_header(estatus); - if (rc) - return rc; - data_len = estatus->data_length; - gdata = (struct acpi_generic_data *)(estatus + 1); - while (data_len >= sizeof(*gdata)) { - gedata_len = gdata->error_data_length; - if (gedata_len > data_len - sizeof(*gdata)) - return -EINVAL; - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; - } - if (data_len) - return -EINVAL; - - return 0; -} -EXPORT_SYMBOL_GPL(cper_estatus_check); diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index b0fc7c79dfbb..3150aa4874e8 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -36,4 +36,7 @@ config EFI_VARS_PSTORE_DEFAULT_DISABLE backend for pstore by default. This setting can be overridden using the efivars module's pstore_disable parameter. +config UEFI_CPER + def_bool n + endmenu diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index 99245ab5a79c..9ba156d3c775 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -4,3 +4,4 @@ obj-y += efi.o vars.o obj-$(CONFIG_EFI_VARS) += efivars.o obj-$(CONFIG_EFI_VARS_PSTORE) += efi-pstore.o +obj-$(CONFIG_UEFI_CPER) += cper.o diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c new file mode 100644 index 000000000000..1491dd4f08f9 --- /dev/null +++ b/drivers/firmware/efi/cper.c @@ -0,0 +1,410 @@ +/* + * UEFI Common Platform Error Record (CPER) support + * + * Copyright (C) 2010, Intel Corp. + * Author: Huang Ying + * + * CPER is the format used to describe platform hardware error by + * various tables, such as ERST, BERT and HEST etc. + * + * For more information about CPER, please refer to Appendix N of UEFI + * Specification version 2.4. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define INDENT_SP " " +/* + * CPER record ID need to be unique even after reboot, because record + * ID is used as index for ERST storage, while CPER records from + * multiple boot may co-exist in ERST. + */ +u64 cper_next_record_id(void) +{ + static atomic64_t seq; + + if (!atomic64_read(&seq)) + atomic64_set(&seq, ((u64)get_seconds()) << 32); + + return atomic64_inc_return(&seq); +} +EXPORT_SYMBOL_GPL(cper_next_record_id); + +static const char *cper_severity_strs[] = { + "recoverable", + "fatal", + "corrected", + "info", +}; + +static const char *cper_severity_str(unsigned int severity) +{ + return severity < ARRAY_SIZE(cper_severity_strs) ? + cper_severity_strs[severity] : "unknown"; +} + +/* + * cper_print_bits - print strings for set bits + * @pfx: prefix for each line, including log level and prefix string + * @bits: bit mask + * @strs: string array, indexed by bit position + * @strs_size: size of the string array: @strs + * + * For each set bit in @bits, print the corresponding string in @strs. + * If the output length is longer than 80, multiple line will be + * printed, with @pfx is printed at the beginning of each line. + */ +void cper_print_bits(const char *pfx, unsigned int bits, + const char * const strs[], unsigned int strs_size) +{ + int i, len = 0; + const char *str; + char buf[84]; + + for (i = 0; i < strs_size; i++) { + if (!(bits & (1U << i))) + continue; + str = strs[i]; + if (!str) + continue; + if (len && len + strlen(str) + 2 > 80) { + printk("%s\n", buf); + len = 0; + } + if (!len) + len = snprintf(buf, sizeof(buf), "%s%s", pfx, str); + else + len += snprintf(buf+len, sizeof(buf)-len, ", %s", str); + } + if (len) + printk("%s\n", buf); +} + +static const char * const cper_proc_type_strs[] = { + "IA32/X64", + "IA64", +}; + +static const char * const cper_proc_isa_strs[] = { + "IA32", + "IA64", + "X64", +}; + +static const char * const cper_proc_error_type_strs[] = { + "cache error", + "TLB error", + "bus error", + "micro-architectural error", +}; + +static const char * const cper_proc_op_strs[] = { + "unknown or generic", + "data read", + "data write", + "instruction execution", +}; + +static const char * const cper_proc_flag_strs[] = { + "restartable", + "precise IP", + "overflow", + "corrected", +}; + +static void cper_print_proc_generic(const char *pfx, + const struct cper_sec_proc_generic *proc) +{ + if (proc->validation_bits & CPER_PROC_VALID_TYPE) + printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type, + proc->proc_type < ARRAY_SIZE(cper_proc_type_strs) ? + cper_proc_type_strs[proc->proc_type] : "unknown"); + if (proc->validation_bits & CPER_PROC_VALID_ISA) + printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa, + proc->proc_isa < ARRAY_SIZE(cper_proc_isa_strs) ? + cper_proc_isa_strs[proc->proc_isa] : "unknown"); + if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) { + printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type); + cper_print_bits(pfx, proc->proc_error_type, + cper_proc_error_type_strs, + ARRAY_SIZE(cper_proc_error_type_strs)); + } + if (proc->validation_bits & CPER_PROC_VALID_OPERATION) + printk("%s""operation: %d, %s\n", pfx, proc->operation, + proc->operation < ARRAY_SIZE(cper_proc_op_strs) ? + cper_proc_op_strs[proc->operation] : "unknown"); + if (proc->validation_bits & CPER_PROC_VALID_FLAGS) { + printk("%s""flags: 0x%02x\n", pfx, proc->flags); + cper_print_bits(pfx, proc->flags, cper_proc_flag_strs, + ARRAY_SIZE(cper_proc_flag_strs)); + } + if (proc->validation_bits & CPER_PROC_VALID_LEVEL) + printk("%s""level: %d\n", pfx, proc->level); + if (proc->validation_bits & CPER_PROC_VALID_VERSION) + printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version); + if (proc->validation_bits & CPER_PROC_VALID_ID) + printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id); + if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS) + printk("%s""target_address: 0x%016llx\n", + pfx, proc->target_addr); + if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID) + printk("%s""requestor_id: 0x%016llx\n", + pfx, proc->requestor_id); + if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID) + printk("%s""responder_id: 0x%016llx\n", + pfx, proc->responder_id); + if (proc->validation_bits & CPER_PROC_VALID_IP) + printk("%s""IP: 0x%016llx\n", pfx, proc->ip); +} + +static const char *cper_mem_err_type_strs[] = { + "unknown", + "no error", + "single-bit ECC", + "multi-bit ECC", + "single-symbol chipkill ECC", + "multi-symbol chipkill ECC", + "master abort", + "target abort", + "parity error", + "watchdog timeout", + "invalid address", + "mirror Broken", + "memory sparing", + "scrub corrected error", + "scrub uncorrected error", + "physical memory map-out event", +}; + +static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem) +{ + if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS) + printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status); + if (mem->validation_bits & CPER_MEM_VALID_PA) + printk("%s""physical_address: 0x%016llx\n", + pfx, mem->physical_addr); + if (mem->validation_bits & CPER_MEM_VALID_PA_MASK) + printk("%s""physical_address_mask: 0x%016llx\n", + pfx, mem->physical_addr_mask); + if (mem->validation_bits & CPER_MEM_VALID_NODE) + pr_debug("node: %d\n", mem->node); + if (mem->validation_bits & CPER_MEM_VALID_CARD) + pr_debug("card: %d\n", mem->card); + if (mem->validation_bits & CPER_MEM_VALID_MODULE) + pr_debug("module: %d\n", mem->module); + if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER) + pr_debug("rank: %d\n", mem->rank); + if (mem->validation_bits & CPER_MEM_VALID_BANK) + pr_debug("bank: %d\n", mem->bank); + if (mem->validation_bits & CPER_MEM_VALID_DEVICE) + pr_debug("device: %d\n", mem->device); + if (mem->validation_bits & CPER_MEM_VALID_ROW) + pr_debug("row: %d\n", mem->row); + if (mem->validation_bits & CPER_MEM_VALID_COLUMN) + pr_debug("column: %d\n", mem->column); + if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION) + pr_debug("bit_position: %d\n", mem->bit_pos); + if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID) + pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id); + if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID) + pr_debug("responder_id: 0x%016llx\n", mem->responder_id); + if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID) + pr_debug("target_id: 0x%016llx\n", mem->target_id); + if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) { + u8 etype = mem->error_type; + printk("%s""error_type: %d, %s\n", pfx, etype, + etype < ARRAY_SIZE(cper_mem_err_type_strs) ? + cper_mem_err_type_strs[etype] : "unknown"); + } + if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) { + const char *bank = NULL, *device = NULL; + dmi_memdev_name(mem->mem_dev_handle, &bank, &device); + if (bank != NULL && device != NULL) + printk("%s""DIMM location: %s %s", pfx, bank, device); + else + printk("%s""DIMM DMI handle: 0x%.4x", + pfx, mem->mem_dev_handle); + } +} + +static const char *cper_pcie_port_type_strs[] = { + "PCIe end point", + "legacy PCI end point", + "unknown", + "unknown", + "root port", + "upstream switch port", + "downstream switch port", + "PCIe to PCI/PCI-X bridge", + "PCI/PCI-X to PCIe bridge", + "root complex integrated endpoint device", + "root complex event collector", +}; + +static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, + const struct acpi_generic_data *gdata) +{ + if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE) + printk("%s""port_type: %d, %s\n", pfx, pcie->port_type, + pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ? + cper_pcie_port_type_strs[pcie->port_type] : "unknown"); + if (pcie->validation_bits & CPER_PCIE_VALID_VERSION) + printk("%s""version: %d.%d\n", pfx, + pcie->version.major, pcie->version.minor); + if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS) + printk("%s""command: 0x%04x, status: 0x%04x\n", pfx, + pcie->command, pcie->status); + if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) { + const __u8 *p; + printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx, + pcie->device_id.segment, pcie->device_id.bus, + pcie->device_id.device, pcie->device_id.function); + printk("%s""slot: %d\n", pfx, + pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT); + printk("%s""secondary_bus: 0x%02x\n", pfx, + pcie->device_id.secondary_bus); + printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx, + pcie->device_id.vendor_id, pcie->device_id.device_id); + p = pcie->device_id.class_code; + printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]); + } + if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER) + printk("%s""serial number: 0x%04x, 0x%04x\n", pfx, + pcie->serial_number.lower, pcie->serial_number.upper); + if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS) + printk( + "%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n", + pfx, pcie->bridge.secondary_status, pcie->bridge.control); +} + +static void cper_estatus_print_section( + const char *pfx, const struct acpi_generic_data *gdata, int sec_no) +{ + uuid_le *sec_type = (uuid_le *)gdata->section_type; + __u16 severity; + char newpfx[64]; + + severity = gdata->error_severity; + printk("%s""Error %d, type: %s\n", pfx, sec_no, + cper_severity_str(severity)); + if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) + printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id); + if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) + printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text); + + snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) { + struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1); + printk("%s""section_type: general processor error\n", newpfx); + if (gdata->error_data_length >= sizeof(*proc_err)) + cper_print_proc_generic(newpfx, proc_err); + else + goto err_section_too_small; + } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) { + struct cper_sec_mem_err *mem_err = (void *)(gdata + 1); + printk("%s""section_type: memory error\n", newpfx); + if (gdata->error_data_length >= sizeof(*mem_err)) + cper_print_mem(newpfx, mem_err); + else + goto err_section_too_small; + } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) { + struct cper_sec_pcie *pcie = (void *)(gdata + 1); + printk("%s""section_type: PCIe error\n", newpfx); + if (gdata->error_data_length >= sizeof(*pcie)) + cper_print_pcie(newpfx, pcie, gdata); + else + goto err_section_too_small; + } else + printk("%s""section type: unknown, %pUl\n", newpfx, sec_type); + + return; + +err_section_too_small: + pr_err(FW_WARN "error section length is too small\n"); +} + +void cper_estatus_print(const char *pfx, + const struct acpi_generic_status *estatus) +{ + struct acpi_generic_data *gdata; + unsigned int data_len, gedata_len; + int sec_no = 0; + char newpfx[64]; + __u16 severity; + + severity = estatus->error_severity; + if (severity == CPER_SEV_CORRECTED) + printk("%s%s\n", pfx, + "It has been corrected by h/w " + "and requires no further action"); + printk("%s""event severity: %s\n", pfx, cper_severity_str(severity)); + data_len = estatus->data_length; + gdata = (struct acpi_generic_data *)(estatus + 1); + snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + while (data_len >= sizeof(*gdata)) { + gedata_len = gdata->error_data_length; + cper_estatus_print_section(newpfx, gdata, sec_no); + data_len -= gedata_len + sizeof(*gdata); + gdata = (void *)(gdata + 1) + gedata_len; + sec_no++; + } +} +EXPORT_SYMBOL_GPL(cper_estatus_print); + +int cper_estatus_check_header(const struct acpi_generic_status *estatus) +{ + if (estatus->data_length && + estatus->data_length < sizeof(struct acpi_generic_data)) + return -EINVAL; + if (estatus->raw_data_length && + estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_GPL(cper_estatus_check_header); + +int cper_estatus_check(const struct acpi_generic_status *estatus) +{ + struct acpi_generic_data *gdata; + unsigned int data_len, gedata_len; + int rc; + + rc = cper_estatus_check_header(estatus); + if (rc) + return rc; + data_len = estatus->data_length; + gdata = (struct acpi_generic_data *)(estatus + 1); + while (data_len >= sizeof(*gdata)) { + gedata_len = gdata->error_data_length; + if (gedata_len > data_len - sizeof(*gdata)) + return -EINVAL; + data_len -= gedata_len + sizeof(*gdata); + gdata = (void *)(gdata + 1) + gedata_len; + } + if (data_len) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_GPL(cper_estatus_check);