ras: acpi/apei: cper: add support for generic data v3 structure
The ACPI 6.1 spec adds a new revision of the generic error data entry structure. Add support to handle the new structure as well as properly verify and iterate through the generic data entries. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>zero-colors
parent
42aa560446
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bbcc2e7b64
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@ -428,8 +428,7 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int
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unsigned long pfn;
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unsigned long pfn;
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int flags = -1;
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int flags = -1;
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int sec_sev = ghes_severity(gdata->error_severity);
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int sec_sev = ghes_severity(gdata->error_severity);
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struct cper_sec_mem_err *mem_err;
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struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
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mem_err = (struct cper_sec_mem_err *)(gdata + 1);
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if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
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if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
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return;
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return;
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@ -466,8 +465,8 @@ static void ghes_do_proc(struct ghes *ghes,
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sec_type = (guid_t *)gdata->section_type;
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sec_type = (guid_t *)gdata->section_type;
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sec_sev = ghes_severity(gdata->error_severity);
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sec_sev = ghes_severity(gdata->error_severity);
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if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
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if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
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struct cper_sec_mem_err *mem_err;
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struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
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mem_err = (struct cper_sec_mem_err *)(gdata+1);
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ghes_edac_report_mem_error(ghes, sev, mem_err);
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ghes_edac_report_mem_error(ghes, sev, mem_err);
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arch_apei_report_mem_error(sev, mem_err);
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arch_apei_report_mem_error(sev, mem_err);
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@ -475,8 +474,8 @@ static void ghes_do_proc(struct ghes *ghes,
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}
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}
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#ifdef CONFIG_ACPI_APEI_PCIEAER
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#ifdef CONFIG_ACPI_APEI_PCIEAER
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else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
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else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
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struct cper_sec_pcie *pcie_err;
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struct cper_sec_pcie *pcie_err = acpi_hest_get_payload(gdata);
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pcie_err = (struct cper_sec_pcie *)(gdata+1);
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if (sev == GHES_SEV_RECOVERABLE &&
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if (sev == GHES_SEV_RECOVERABLE &&
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sec_sev == GHES_SEV_RECOVERABLE &&
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sec_sev == GHES_SEV_RECOVERABLE &&
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pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
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pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
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@ -32,6 +32,7 @@
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#include <linux/acpi.h>
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#include <linux/acpi.h>
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#include <linux/pci.h>
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#include <linux/pci.h>
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#include <linux/aer.h>
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#include <linux/aer.h>
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#include <acpi/ghes.h>
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#define INDENT_SP " "
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#define INDENT_SP " "
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@ -386,8 +387,9 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
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pfx, pcie->bridge.secondary_status, pcie->bridge.control);
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pfx, pcie->bridge.secondary_status, pcie->bridge.control);
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}
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}
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static void cper_estatus_print_section(
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static void
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const char *pfx, const struct acpi_hest_generic_data *gdata, int sec_no)
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cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata,
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int sec_no)
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{
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{
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uuid_le *sec_type = (uuid_le *)gdata->section_type;
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uuid_le *sec_type = (uuid_le *)gdata->section_type;
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__u16 severity;
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__u16 severity;
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@ -403,14 +405,16 @@ static void cper_estatus_print_section(
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snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
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snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
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if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
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if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
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struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
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struct cper_sec_proc_generic *proc_err = acpi_hest_get_payload(gdata);
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printk("%s""section_type: general processor error\n", newpfx);
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printk("%s""section_type: general processor error\n", newpfx);
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if (gdata->error_data_length >= sizeof(*proc_err))
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if (gdata->error_data_length >= sizeof(*proc_err))
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cper_print_proc_generic(newpfx, proc_err);
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cper_print_proc_generic(newpfx, proc_err);
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else
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else
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goto err_section_too_small;
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goto err_section_too_small;
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} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
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} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
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struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
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struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
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printk("%s""section_type: memory error\n", newpfx);
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printk("%s""section_type: memory error\n", newpfx);
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if (gdata->error_data_length >=
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if (gdata->error_data_length >=
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sizeof(struct cper_sec_mem_err_old))
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sizeof(struct cper_sec_mem_err_old))
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@ -419,7 +423,8 @@ static void cper_estatus_print_section(
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else
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else
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goto err_section_too_small;
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goto err_section_too_small;
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} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
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} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
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struct cper_sec_pcie *pcie = (void *)(gdata + 1);
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struct cper_sec_pcie *pcie = acpi_hest_get_payload(gdata);
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printk("%s""section_type: PCIe error\n", newpfx);
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printk("%s""section_type: PCIe error\n", newpfx);
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if (gdata->error_data_length >= sizeof(*pcie))
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if (gdata->error_data_length >= sizeof(*pcie))
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cper_print_pcie(newpfx, pcie, gdata);
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cper_print_pcie(newpfx, pcie, gdata);
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@ -438,7 +443,7 @@ void cper_estatus_print(const char *pfx,
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const struct acpi_hest_generic_status *estatus)
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const struct acpi_hest_generic_status *estatus)
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{
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{
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struct acpi_hest_generic_data *gdata;
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struct acpi_hest_generic_data *gdata;
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unsigned int data_len, gedata_len;
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unsigned int data_len;
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int sec_no = 0;
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int sec_no = 0;
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char newpfx[64];
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char newpfx[64];
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__u16 severity;
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__u16 severity;
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@ -452,11 +457,11 @@ void cper_estatus_print(const char *pfx,
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data_len = estatus->data_length;
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data_len = estatus->data_length;
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gdata = (struct acpi_hest_generic_data *)(estatus + 1);
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gdata = (struct acpi_hest_generic_data *)(estatus + 1);
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snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
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snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
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while (data_len >= sizeof(*gdata)) {
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gedata_len = gdata->error_data_length;
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while (data_len >= acpi_hest_get_size(gdata)) {
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cper_estatus_print_section(newpfx, gdata, sec_no);
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cper_estatus_print_section(newpfx, gdata, sec_no);
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data_len -= gedata_len + sizeof(*gdata);
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data_len -= acpi_hest_get_record_size(gdata);
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gdata = (void *)(gdata + 1) + gedata_len;
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gdata = acpi_hest_get_next(gdata);
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sec_no++;
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sec_no++;
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}
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}
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}
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}
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@ -486,12 +491,14 @@ int cper_estatus_check(const struct acpi_hest_generic_status *estatus)
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return rc;
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return rc;
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data_len = estatus->data_length;
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data_len = estatus->data_length;
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gdata = (struct acpi_hest_generic_data *)(estatus + 1);
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gdata = (struct acpi_hest_generic_data *)(estatus + 1);
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while (data_len >= sizeof(*gdata)) {
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gedata_len = gdata->error_data_length;
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while (data_len >= acpi_hest_get_size(gdata)) {
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if (gedata_len > data_len - sizeof(*gdata))
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gedata_len = acpi_hest_get_error_length(gdata);
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if (gedata_len > data_len - acpi_hest_get_size(gdata))
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return -EINVAL;
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return -EINVAL;
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data_len -= gedata_len + sizeof(*gdata);
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gdata = (void *)(gdata + 1) + gedata_len;
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data_len -= acpi_hest_get_record_size(gdata);
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gdata = acpi_hest_get_next(gdata);
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}
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}
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if (data_len)
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if (data_len)
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return -EINVAL;
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return -EINVAL;
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@ -73,3 +73,39 @@ static inline void ghes_edac_unregister(struct ghes *ghes)
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{
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{
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}
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}
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#endif
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#endif
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static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
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{
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return gdata->revision >> 8;
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}
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static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
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{
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if (acpi_hest_get_version(gdata) >= 3)
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return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);
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return gdata + 1;
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}
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static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata)
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{
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return ((struct acpi_hest_generic_data *)(gdata))->error_data_length;
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}
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static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata)
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{
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if (acpi_hest_get_version(gdata) >= 3)
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return sizeof(struct acpi_hest_generic_data_v300);
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return sizeof(struct acpi_hest_generic_data);
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}
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static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata)
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{
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return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata));
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}
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static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
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{
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return (void *)(gdata) + acpi_hest_get_record_size(gdata);
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}
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