sections/cper-section-pcie.c - openbmc/libcper - Gitiles

 /**
  * Describes functions for converting PCIe CPER sections from binary and JSON format
  * into an intermediate format.
  *
  * Author: Lawrence.Tang@arm.com
  **/
 #include <stdio.h>
 #include <string.h>
 #include "json.h"
 #include "b64.h"
 #include "../edk/Cper.h"
 #include "../cper-utils.h"
 #include "cper-section-pcie.h"

 //Converts a single PCIe CPER section into JSON IR.
 json_object* cper_section_pcie_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor)
 {
     EFI_PCIE_ERROR_DATA* pcie_error = (EFI_PCIE_ERROR_DATA*)section;
     json_object* section_ir = json_object_new_object();

     //Validation bits.
     json_object* validation = bitfield_to_ir(pcie_error->ValidFields, 8, PCIE_ERROR_VALID_BITFIELD_NAMES);
     json_object_object_add(section_ir, "validationBits", validation);

     //Port type.
     json_object* port_type = integer_to_readable_pair(pcie_error->PortType, 9,
         PCIE_ERROR_PORT_TYPES_KEYS,
         PCIE_ERROR_PORT_TYPES_VALUES,
         "Unknown");
     json_object_object_add(section_ir, "portType", port_type);

     //Version, provided each half in BCD.
     json_object* version = json_object_new_object();
     json_object_object_add(version, "minor", json_object_new_int(bcd_to_int(pcie_error->Version & 0xFF)));
     json_object_object_add(version, "major", json_object_new_int(bcd_to_int(pcie_error->Version >> 8)));
     json_object_object_add(section_ir, "version", version);

     //Command & status.
     json_object* command_status = json_object_new_object();
     json_object_object_add(command_status, "commandRegister", json_object_new_uint64(pcie_error->CommandStatus & 0xFFFF));
     json_object_object_add(command_status, "statusRegister", json_object_new_uint64(pcie_error->CommandStatus >> 16));
     json_object_object_add(section_ir, "commandStatus", command_status);

     //PCIe Device ID.
     json_object* device_id = json_object_new_object();
     UINT64 class_id = (pcie_error->DevBridge.ClassCode[0] << 16) +
                       (pcie_error->DevBridge.ClassCode[1] << 8) +
                       pcie_error->DevBridge.ClassCode[2];
     json_object_object_add(device_id, "vendorID", json_object_new_uint64(pcie_error->DevBridge.VendorId));
     json_object_object_add(device_id, "deviceID", json_object_new_uint64(pcie_error->DevBridge.DeviceId));
     json_object_object_add(device_id, "classCode", json_object_new_uint64(class_id));
     json_object_object_add(device_id, "functionNumber", json_object_new_uint64(pcie_error->DevBridge.Function));
     json_object_object_add(device_id, "deviceNumber", json_object_new_uint64(pcie_error->DevBridge.Device));
     json_object_object_add(device_id, "segmentNumber", json_object_new_uint64(pcie_error->DevBridge.Segment));
     json_object_object_add(device_id, "primaryOrDeviceBusNumber", json_object_new_uint64(pcie_error->DevBridge.PrimaryOrDeviceBus));
     json_object_object_add(device_id, "secondaryBusNumber", json_object_new_uint64(pcie_error->DevBridge.SecondaryBus));
     json_object_object_add(device_id, "slotNumber", json_object_new_uint64(pcie_error->DevBridge.Slot.Number));
     json_object_object_add(section_ir, "deviceID", device_id);

     //Device serial number.
     json_object_object_add(section_ir, "deviceSerialNumber", json_object_new_uint64(pcie_error->SerialNo));

     //Bridge control status.
     json_object* bridge_control_status = json_object_new_object();
     json_object_object_add(bridge_control_status, "secondaryStatusRegister",
         json_object_new_uint64(pcie_error->BridgeControlStatus & 0xFFFF));
     json_object_object_add(bridge_control_status, "controlRegister",
         json_object_new_uint64(pcie_error->BridgeControlStatus >> 16));
     json_object_object_add(section_ir, "bridgeControlStatus", bridge_control_status);

     //Capability structure.
     //The PCIe capability structure provided here could either be PCIe 1.1 Capability Structure
     //(36-byte, padded to 60 bytes) or PCIe 2.0 Capability Structure (60-byte). There does not seem
     //to be a way to differentiate these, so this is left as a b64 dump.
     char* encoded = b64_encode((unsigned char*)pcie_error->Capability.PcieCap, 60);
     json_object* capability = json_object_new_object();
     json_object_object_add(capability, "data", json_object_new_string(encoded));
     free(encoded);
     json_object_object_add(section_ir, "capabilityStructure", capability);

     //AER information.
     json_object* aer_capability_ir = json_object_new_object();
     EFI_PCIE_ADV_ERROR_EXT_CAPABILITY* aer_capability = (EFI_PCIE_ADV_ERROR_EXT_CAPABILITY*)pcie_error->AerInfo.PcieAer;
     json_object_object_add(aer_capability_ir, "capabilityID",
         json_object_new_uint64(aer_capability->Header.PcieExtendedCapabilityId));
     json_object_object_add(aer_capability_ir, "capabilityVersion",
         json_object_new_uint64(aer_capability->Header.CapabilityVersion));
     json_object_object_add(aer_capability_ir, "uncorrectableErrorStatusRegister",
         json_object_new_uint64(aer_capability->UncorrectableErrorStatusReg));
     json_object_object_add(aer_capability_ir, "uncorrectableErrorMaskRegister",
         json_object_new_uint64(aer_capability->UncorrectableErrorMaskReg));
     json_object_object_add(aer_capability_ir, "uncorrectableErrorSeverityRegister",
         json_object_new_uint64(aer_capability->UncorrectableErrorSeverityReg));
     json_object_object_add(aer_capability_ir, "correctableErrorStatusRegister",
         json_object_new_uint64(aer_capability->CorrectableErrorStatusReg));
     json_object_object_add(aer_capability_ir, "correctableErrorMaskRegister",
         json_object_new_uint64(aer_capability->CorrectableErrorMaskReg));
     json_object_object_add(aer_capability_ir, "aeccReg", json_object_new_uint64(aer_capability->AeccReg));

     //Header log register (b64).
     encoded = b64_encode((unsigned char*)aer_capability->HeaderLogReg, 16);
     json_object_object_add(aer_capability_ir, "headerLogRegister", json_object_new_string(encoded));
     free(encoded);

     //Remaining AER fields.
     json_object_object_add(aer_capability_ir, "rootErrorCommand",
         json_object_new_uint64(aer_capability->RootErrorCommand));
     json_object_object_add(aer_capability_ir, "rootErrorStatus",
         json_object_new_uint64(aer_capability->RootErrorStatus));
     json_object_object_add(aer_capability_ir, "errorSourceIDRegister",
         json_object_new_uint64(aer_capability->ErrorSourceIdReg));
     json_object_object_add(aer_capability_ir, "correctableErrorSourceIDRegister",
         json_object_new_uint64(aer_capability->CorrectableSourceIdReg));

     json_object_object_add(section_ir, "aerInfo", aer_capability_ir);
     return section_ir;
 }

 //Converts a single CPER-JSON PCIe section into CPER binary, outputting to the given stream.
 void ir_section_pcie_to_cper(json_object* section, FILE* out)
 {
     EFI_PCIE_ERROR_DATA* section_cper = (EFI_PCIE_ERROR_DATA*)calloc(1, sizeof(EFI_PCIE_ERROR_DATA));

     //Validation bits.
     section_cper->ValidFields = ir_to_bitfield(json_object_object_get(section, "validationBits"),
         8, PCIE_ERROR_VALID_BITFIELD_NAMES);

     //Version.
     json_object* version = json_object_object_get(section, "version");
     int minor = json_object_get_int(json_object_object_get(version, "minor"));
     int major = json_object_get_int(json_object_object_get(version, "major"));
     section_cper->Version = int_to_bcd(minor) + ((UINT16)(int_to_bcd(major)) << 8);

     //Command/status registers.
     json_object* command_status = json_object_object_get(section, "commandStatus");
     UINT32 command = (UINT16)json_object_get_uint64(json_object_object_get(command_status, "commandRegister"));
     UINT32 status = (UINT16)json_object_get_uint64(json_object_object_get(command_status, "statusRegister"));
     section_cper->CommandStatus = command + (status << 16);

     //Device ID.
     json_object* device_id = json_object_object_get(section, "deviceID");
     UINT64 class_id = json_object_get_uint64(json_object_object_get(device_id, "classCode"));
     section_cper->DevBridge.VendorId =
         (UINT16)json_object_get_uint64(json_object_object_get(device_id, "vendorID"));
     section_cper->DevBridge.DeviceId =
         (UINT16)json_object_get_uint64(json_object_object_get(device_id, "deviceID"));
     section_cper->DevBridge.ClassCode[0] = class_id >> 16;
     section_cper->DevBridge.ClassCode[1] = (class_id >> 8) & 0xFF;
     section_cper->DevBridge.ClassCode[1] = class_id & 0xFF;
     section_cper->DevBridge.Function =
         (UINT8)json_object_get_uint64(json_object_object_get(device_id, "functionNumber"));
     section_cper->DevBridge.Device =
         (UINT8)json_object_get_uint64(json_object_object_get(device_id, "deviceNumber"));
     section_cper->DevBridge.Segment =
         (UINT16)json_object_get_uint64(json_object_object_get(device_id, "segmentNumber"));
     section_cper->DevBridge.PrimaryOrDeviceBus =
         (UINT8)json_object_get_uint64(json_object_object_get(device_id, "primaryOrDeviceBusNumber"));
     section_cper->DevBridge.SecondaryBus =
         (UINT8)json_object_get_uint64(json_object_object_get(device_id, "secondaryBusNumber"));
     section_cper->DevBridge.Slot.Number =
         (UINT16)json_object_get_uint64(json_object_object_get(device_id, "slotNumber"));

     //Bridge/control status.
     json_object* bridge_control = json_object_object_get(section, "bridgeControlStatus");
     UINT32 bridge_status = (UINT16)json_object_get_uint64(json_object_object_get(bridge_control, "secondaryStatusRegister"));
     UINT32 control_status = (UINT16)json_object_get_uint64(json_object_object_get(bridge_control, "controlRegister"));
     section_cper->BridgeControlStatus = bridge_status + (control_status << 16);

     //Capability structure.
     json_object* capability = json_object_object_get(section, "capabilityStructure");
     json_object* encoded = json_object_object_get(capability, "data");
     UINT8* decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded));
     memcpy(section_cper->Capability.PcieCap, decoded, 60);
     free(decoded);

     //AER capability structure.
     json_object* aer_info = json_object_object_get(section, "aerInfo");
     EFI_PCIE_ADV_ERROR_EXT_CAPABILITY* aer_capability =
         (EFI_PCIE_ADV_ERROR_EXT_CAPABILITY*)section_cper->AerInfo.PcieAer;
     aer_capability->Header.PcieExtendedCapabilityId =
         json_object_get_uint64(json_object_object_get(aer_info, "capabilityID"));
     aer_capability->Header.CapabilityVersion =
         json_object_get_uint64(json_object_object_get(aer_info, "capabilityVersion"));
     aer_capability->UncorrectableErrorStatusReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorStatusRegister"));
     aer_capability->UncorrectableErrorMaskReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorMaskRegister"));
     aer_capability->UncorrectableErrorSeverityReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorSeverityRegister"));
     aer_capability->CorrectableErrorStatusReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorStatusRegister"));
     aer_capability->CorrectableErrorMaskReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorMaskRegister"));
     aer_capability->AeccReg =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "aeccReg"));

     //AER header log register.
     encoded = json_object_object_get(aer_info, "headerLogRegister");
     decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded));
     memcpy(aer_capability->HeaderLogReg, decoded, 16);
     free(decoded);

     //Remaining AER fields.
     aer_capability->RootErrorCommand =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "rootErrorCommand"));
     aer_capability->RootErrorStatus =
         (UINT32)json_object_get_uint64(json_object_object_get(aer_info, "rootErrorStatus"));
     aer_capability->ErrorSourceIdReg =
         (UINT16)json_object_get_uint64(json_object_object_get(aer_info, "errorSourceIDRegister"));
     aer_capability->CorrectableSourceIdReg =
         (UINT16)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorSourceIDRegister"));


     //Miscellaneous value fields.
     section_cper->PortType = (UINT32)readable_pair_to_integer(json_object_object_get(section, "portType"));
     section_cper->SerialNo = json_object_get_uint64(json_object_object_get(section, "deviceSerialNumber"));

     //Write out to stream, free resources.
     fwrite(&section_cper, sizeof(section_cper), 1, out);
     fflush(out);
     free(section_cper);
 }
	/**
	* Describes functions for converting PCIe CPER sections from binary and JSON format
	* into an intermediate format.
	*
	* Author: Lawrence.Tang@arm.com
	**/
	#include <stdio.h>
	#include <string.h>
	#include "json.h"
	#include "b64.h"
	#include "../edk/Cper.h"
	#include "../cper-utils.h"
	#include "cper-section-pcie.h"

	//Converts a single PCIe CPER section into JSON IR.
	json_object* cper_section_pcie_to_ir(void* section, EFI_ERROR_SECTION_DESCRIPTOR* descriptor)
	{
	EFI_PCIE_ERROR_DATA* pcie_error = (EFI_PCIE_ERROR_DATA*)section;
	json_object* section_ir = json_object_new_object();

	//Validation bits.
	json_object* validation = bitfield_to_ir(pcie_error->ValidFields, 8, PCIE_ERROR_VALID_BITFIELD_NAMES);
	json_object_object_add(section_ir, "validationBits", validation);

	//Port type.
	json_object* port_type = integer_to_readable_pair(pcie_error->PortType, 9,
	PCIE_ERROR_PORT_TYPES_KEYS,
	PCIE_ERROR_PORT_TYPES_VALUES,
	"Unknown");
	json_object_object_add(section_ir, "portType", port_type);

	//Version, provided each half in BCD.
	json_object* version = json_object_new_object();
	json_object_object_add(version, "minor", json_object_new_int(bcd_to_int(pcie_error->Version & 0xFF)));
	json_object_object_add(version, "major", json_object_new_int(bcd_to_int(pcie_error->Version >> 8)));
	json_object_object_add(section_ir, "version", version);

	//Command & status.
	json_object* command_status = json_object_new_object();
	json_object_object_add(command_status, "commandRegister", json_object_new_uint64(pcie_error->CommandStatus & 0xFFFF));
	json_object_object_add(command_status, "statusRegister", json_object_new_uint64(pcie_error->CommandStatus >> 16));
	json_object_object_add(section_ir, "commandStatus", command_status);

	//PCIe Device ID.
	json_object* device_id = json_object_new_object();
	UINT64 class_id = (pcie_error->DevBridge.ClassCode[0] << 16) +
	(pcie_error->DevBridge.ClassCode[1] << 8) +
	pcie_error->DevBridge.ClassCode[2];
	json_object_object_add(device_id, "vendorID", json_object_new_uint64(pcie_error->DevBridge.VendorId));
	json_object_object_add(device_id, "deviceID", json_object_new_uint64(pcie_error->DevBridge.DeviceId));
	json_object_object_add(device_id, "classCode", json_object_new_uint64(class_id));
	json_object_object_add(device_id, "functionNumber", json_object_new_uint64(pcie_error->DevBridge.Function));
	json_object_object_add(device_id, "deviceNumber", json_object_new_uint64(pcie_error->DevBridge.Device));
	json_object_object_add(device_id, "segmentNumber", json_object_new_uint64(pcie_error->DevBridge.Segment));
	json_object_object_add(device_id, "primaryOrDeviceBusNumber", json_object_new_uint64(pcie_error->DevBridge.PrimaryOrDeviceBus));
	json_object_object_add(device_id, "secondaryBusNumber", json_object_new_uint64(pcie_error->DevBridge.SecondaryBus));
	json_object_object_add(device_id, "slotNumber", json_object_new_uint64(pcie_error->DevBridge.Slot.Number));
	json_object_object_add(section_ir, "deviceID", device_id);

	//Device serial number.
	json_object_object_add(section_ir, "deviceSerialNumber", json_object_new_uint64(pcie_error->SerialNo));

	//Bridge control status.
	json_object* bridge_control_status = json_object_new_object();
	json_object_object_add(bridge_control_status, "secondaryStatusRegister",
	json_object_new_uint64(pcie_error->BridgeControlStatus & 0xFFFF));
	json_object_object_add(bridge_control_status, "controlRegister",
	json_object_new_uint64(pcie_error->BridgeControlStatus >> 16));
	json_object_object_add(section_ir, "bridgeControlStatus", bridge_control_status);

	//Capability structure.
	//The PCIe capability structure provided here could either be PCIe 1.1 Capability Structure
	//(36-byte, padded to 60 bytes) or PCIe 2.0 Capability Structure (60-byte). There does not seem
	//to be a way to differentiate these, so this is left as a b64 dump.
	char* encoded = b64_encode((unsigned char*)pcie_error->Capability.PcieCap, 60);
	json_object* capability = json_object_new_object();
	json_object_object_add(capability, "data", json_object_new_string(encoded));
	free(encoded);
	json_object_object_add(section_ir, "capabilityStructure", capability);

	//AER information.
	json_object* aer_capability_ir = json_object_new_object();
	EFI_PCIE_ADV_ERROR_EXT_CAPABILITY* aer_capability = (EFI_PCIE_ADV_ERROR_EXT_CAPABILITY*)pcie_error->AerInfo.PcieAer;
	json_object_object_add(aer_capability_ir, "capabilityID",
	json_object_new_uint64(aer_capability->Header.PcieExtendedCapabilityId));
	json_object_object_add(aer_capability_ir, "capabilityVersion",
	json_object_new_uint64(aer_capability->Header.CapabilityVersion));
	json_object_object_add(aer_capability_ir, "uncorrectableErrorStatusRegister",
	json_object_new_uint64(aer_capability->UncorrectableErrorStatusReg));
	json_object_object_add(aer_capability_ir, "uncorrectableErrorMaskRegister",
	json_object_new_uint64(aer_capability->UncorrectableErrorMaskReg));
	json_object_object_add(aer_capability_ir, "uncorrectableErrorSeverityRegister",
	json_object_new_uint64(aer_capability->UncorrectableErrorSeverityReg));
	json_object_object_add(aer_capability_ir, "correctableErrorStatusRegister",
	json_object_new_uint64(aer_capability->CorrectableErrorStatusReg));
	json_object_object_add(aer_capability_ir, "correctableErrorMaskRegister",
	json_object_new_uint64(aer_capability->CorrectableErrorMaskReg));
	json_object_object_add(aer_capability_ir, "aeccReg", json_object_new_uint64(aer_capability->AeccReg));

	//Header log register (b64).
	encoded = b64_encode((unsigned char*)aer_capability->HeaderLogReg, 16);
	json_object_object_add(aer_capability_ir, "headerLogRegister", json_object_new_string(encoded));
	free(encoded);

	//Remaining AER fields.
	json_object_object_add(aer_capability_ir, "rootErrorCommand",
	json_object_new_uint64(aer_capability->RootErrorCommand));
	json_object_object_add(aer_capability_ir, "rootErrorStatus",
	json_object_new_uint64(aer_capability->RootErrorStatus));
	json_object_object_add(aer_capability_ir, "errorSourceIDRegister",
	json_object_new_uint64(aer_capability->ErrorSourceIdReg));
	json_object_object_add(aer_capability_ir, "correctableErrorSourceIDRegister",
	json_object_new_uint64(aer_capability->CorrectableSourceIdReg));

	json_object_object_add(section_ir, "aerInfo", aer_capability_ir);
	return section_ir;
	}

	//Converts a single CPER-JSON PCIe section into CPER binary, outputting to the given stream.
	void ir_section_pcie_to_cper(json_object* section, FILE* out)
	{
	EFI_PCIE_ERROR_DATA* section_cper = (EFI_PCIE_ERROR_DATA*)calloc(1, sizeof(EFI_PCIE_ERROR_DATA));

	//Validation bits.
	section_cper->ValidFields = ir_to_bitfield(json_object_object_get(section, "validationBits"),
	8, PCIE_ERROR_VALID_BITFIELD_NAMES);

	//Version.
	json_object* version = json_object_object_get(section, "version");
	int minor = json_object_get_int(json_object_object_get(version, "minor"));
	int major = json_object_get_int(json_object_object_get(version, "major"));
	section_cper->Version = int_to_bcd(minor) + ((UINT16)(int_to_bcd(major)) << 8);

	//Command/status registers.
	json_object* command_status = json_object_object_get(section, "commandStatus");
	UINT32 command = (UINT16)json_object_get_uint64(json_object_object_get(command_status, "commandRegister"));
	UINT32 status = (UINT16)json_object_get_uint64(json_object_object_get(command_status, "statusRegister"));
	section_cper->CommandStatus = command + (status << 16);

	//Device ID.
	json_object* device_id = json_object_object_get(section, "deviceID");
	UINT64 class_id = json_object_get_uint64(json_object_object_get(device_id, "classCode"));
	section_cper->DevBridge.VendorId =
	(UINT16)json_object_get_uint64(json_object_object_get(device_id, "vendorID"));
	section_cper->DevBridge.DeviceId =
	(UINT16)json_object_get_uint64(json_object_object_get(device_id, "deviceID"));
	section_cper->DevBridge.ClassCode[0] = class_id >> 16;
	section_cper->DevBridge.ClassCode[1] = (class_id >> 8) & 0xFF;
	section_cper->DevBridge.ClassCode[1] = class_id & 0xFF;
	section_cper->DevBridge.Function =
	(UINT8)json_object_get_uint64(json_object_object_get(device_id, "functionNumber"));
	section_cper->DevBridge.Device =
	(UINT8)json_object_get_uint64(json_object_object_get(device_id, "deviceNumber"));
	section_cper->DevBridge.Segment =
	(UINT16)json_object_get_uint64(json_object_object_get(device_id, "segmentNumber"));
	section_cper->DevBridge.PrimaryOrDeviceBus =
	(UINT8)json_object_get_uint64(json_object_object_get(device_id, "primaryOrDeviceBusNumber"));
	section_cper->DevBridge.SecondaryBus =
	(UINT8)json_object_get_uint64(json_object_object_get(device_id, "secondaryBusNumber"));
	section_cper->DevBridge.Slot.Number =
	(UINT16)json_object_get_uint64(json_object_object_get(device_id, "slotNumber"));

	//Bridge/control status.
	json_object* bridge_control = json_object_object_get(section, "bridgeControlStatus");
	UINT32 bridge_status = (UINT16)json_object_get_uint64(json_object_object_get(bridge_control, "secondaryStatusRegister"));
	UINT32 control_status = (UINT16)json_object_get_uint64(json_object_object_get(bridge_control, "controlRegister"));
	section_cper->BridgeControlStatus = bridge_status + (control_status << 16);

	//Capability structure.
	json_object* capability = json_object_object_get(section, "capabilityStructure");
	json_object* encoded = json_object_object_get(capability, "data");
	UINT8* decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded));
	memcpy(section_cper->Capability.PcieCap, decoded, 60);
	free(decoded);

	//AER capability structure.
	json_object* aer_info = json_object_object_get(section, "aerInfo");
	EFI_PCIE_ADV_ERROR_EXT_CAPABILITY* aer_capability =
	(EFI_PCIE_ADV_ERROR_EXT_CAPABILITY*)section_cper->AerInfo.PcieAer;
	aer_capability->Header.PcieExtendedCapabilityId =
	json_object_get_uint64(json_object_object_get(aer_info, "capabilityID"));
	aer_capability->Header.CapabilityVersion =
	json_object_get_uint64(json_object_object_get(aer_info, "capabilityVersion"));
	aer_capability->UncorrectableErrorStatusReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorStatusRegister"));
	aer_capability->UncorrectableErrorMaskReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorMaskRegister"));
	aer_capability->UncorrectableErrorSeverityReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "uncorrectableErrorSeverityRegister"));
	aer_capability->CorrectableErrorStatusReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorStatusRegister"));
	aer_capability->CorrectableErrorMaskReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorMaskRegister"));
	aer_capability->AeccReg =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "aeccReg"));

	//AER header log register.
	encoded = json_object_object_get(aer_info, "headerLogRegister");
	decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded));
	memcpy(aer_capability->HeaderLogReg, decoded, 16);
	free(decoded);

	//Remaining AER fields.
	aer_capability->RootErrorCommand =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "rootErrorCommand"));
	aer_capability->RootErrorStatus =
	(UINT32)json_object_get_uint64(json_object_object_get(aer_info, "rootErrorStatus"));
	aer_capability->ErrorSourceIdReg =
	(UINT16)json_object_get_uint64(json_object_object_get(aer_info, "errorSourceIDRegister"));
	aer_capability->CorrectableSourceIdReg =
	(UINT16)json_object_get_uint64(json_object_object_get(aer_info, "correctableErrorSourceIDRegister"));


	//Miscellaneous value fields.
	section_cper->PortType = (UINT32)readable_pair_to_integer(json_object_object_get(section, "portType"));
	section_cper->SerialNo = json_object_get_uint64(json_object_object_get(section, "deviceSerialNumber"));

	//Write out to stream, free resources.
	fwrite(&section_cper, sizeof(section_cper), 1, out);
	fflush(out);
	free(section_cper);
	}