analyzer/create_pel.cpp - openbmc/openpower-hw-diags - Gitiles

 #include <unistd.h>

 #include <analyzer/util.hpp>
 #include <hei_main.hpp>
 #include <phosphor-logging/elog.hpp>
 #include <sdbusplus/bus.hpp>
 #include <util/bin_stream.hpp>
 #include <util/ffdc_file.hpp>
 #include <util/pdbg.hpp>
 #include <util/trace.hpp>
 #include <xyz/openbmc_project/Logging/Create/server.hpp>
 #include <xyz/openbmc_project/Logging/Entry/server.hpp>

 #include <fstream>
 #include <memory>

 namespace LogSvr = sdbusplus::xyz::openbmc_project::Logging::server;

 namespace analyzer
 {

 //------------------------------------------------------------------------------

 enum FfdcSubType_t : uint8_t
 {
     FFDC_SIGNATURES    = 0x01,
     FFDC_REGISTER_DUMP = 0x02,

     // For the callout section, the value of '0xCA' is required per the
     // phosphor-logging openpower-pel extention spec.
     FFDC_CALLOUTS = 0xCA,
 };

 enum FfdcVersion_t : uint8_t
 {
     FFDC_VERSION1 = 0x01,
 };

 //------------------------------------------------------------------------------

 bool __isCheckstop(const libhei::IsolationData& i_isoData)
 {
     // Look for any signature with a system checkstop attention.
     auto list = i_isoData.getSignatureList();
     auto itr  = std::find_if(list.begin(), list.end(), [](const auto& s) {
         return libhei::ATTN_TYPE_CHECKSTOP == s.getAttnType();
     });

     return list.end() != itr;
 }

 //------------------------------------------------------------------------------

 void __getSrc(const libhei::Signature& i_signature, uint32_t& o_word6,
               uint32_t& o_word7, uint32_t& o_word8)
 {
     // [ 0:15] chip model
     // [16:23] reserved space in chip ID
     // [24:31] chip EC level
     o_word6 = i_signature.getChip().getType();

     // [ 0:15] chip position
     // [16:23] unused
     // [24:31] signature attention type
     auto pos  = util::pdbg::getChipPos(i_signature.getChip());
     auto attn = i_signature.getAttnType();

     o_word7 = (pos & 0xffff) << 16 | (attn & 0xff);

     // [ 0:15] signature ID
     // [16:23] signature instance
     // [24:31] signature bit position
     o_word8 = i_signature.toUint32();

     // Word 9 is currently unused
 }

 //------------------------------------------------------------------------------

 void __setSrc(const libhei::Signature& i_rootCause,
               std::map<std::string, std::string>& io_logData)
 {
     uint32_t word6 = 0, word7 = 0, word8 = 0;
     __getSrc(i_rootCause, word6, word7, word8);

     io_logData["SRC6"] = std::to_string(word6);
     io_logData["SRC7"] = std::to_string(word7);
     io_logData["SRC8"] = std::to_string(word8);
 }

 //------------------------------------------------------------------------------

 void __captureSignatureList(const libhei::IsolationData& i_isoData,
                             std::vector<util::FFDCFile>& io_userDataFiles)
 {
     // Create a new entry for this user data section regardless if there are any
     // signatures in the list.
     io_userDataFiles.emplace_back(util::FFDCFormat::Custom, FFDC_SIGNATURES,
                                   FFDC_VERSION1);

     // Create a streamer for easy writing to the FFDC file.
     auto path = io_userDataFiles.back().getPath();
     util::BinFileWriter stream{path};

     // The first 4 bytes in the FFDC contains the number of signatures in the
     // list. Then, the list of signatures will follow.

     auto list = i_isoData.getSignatureList();

     uint32_t numSigs = list.size();
     stream << numSigs;

     for (const auto& sig : list)
     {
         // Each signature will use the same format as the SRC (12 bytes each).
         uint32_t word6 = 0, word7 = 0, word8 = 0;
         __getSrc(sig, word6, word7, word8);
         stream << word6 << word7 << word8;
     }

     // If the stream failed for any reason, remove the FFDC file.
     if (!stream.good())
     {
         trace::err("Unable to write signature list FFDC file: %s",
                    path.string().c_str());
         io_userDataFiles.pop_back();
     }
 }

 //------------------------------------------------------------------------------

 void __captureRegisterDump(const libhei::IsolationData& i_isoData,
                            std::vector<util::FFDCFile>& io_userDataFiles)
 {
     // Create a new entry for this user data section regardless if there are any
     // registers in the dump.
     io_userDataFiles.emplace_back(util::FFDCFormat::Custom, FFDC_REGISTER_DUMP,
                                   FFDC_VERSION1);

     // Create a streamer for easy writing to the FFDC file.
     auto path = io_userDataFiles.back().getPath();
     util::BinFileWriter stream{path};

     // The first 4 bytes in the FFDC contains the number of chips with register
     // data. Then the data for each chip will follow.

     auto dump = i_isoData.getRegisterDump();

     uint32_t numChips = dump.size();
     stream << numChips;

     for (const auto& entry : dump)
     {
         auto chip    = entry.first;
         auto regList = entry.second;

         // Each chip will have the following information:
         //   4 byte chip model/EC
         //   2 byte chip position
         //   4 byte number of registers
         // Then the data for each register will follow.

         uint32_t chipType = chip.getType();
         uint16_t chipPos  = util::pdbg::getChipPos(chip);
         uint32_t numRegs  = regList.size();
         stream << chipType << chipPos << numRegs;

         for (const auto& reg : regList)
         {
             // Each register will have the following information:
             //   3 byte register ID
             //   1 byte register instance
             //   1 byte data size
             //   * byte data buffer (* depends on value of data size)

             libhei::RegisterId_t regId = reg.regId;   // 3 byte
             libhei::Instance_t regInst = reg.regInst; // 1 byte

             auto tmp = libhei::BitString::getMinBytes(reg.data->getBitLen());
             if (255 < tmp)
             {
                 trace::inf("Register data execeeded 255 and was truncated: "
                            "regId=0x%06x regInst=%u",
                            regId, regInst);
                 tmp = 255;
             }
             uint8_t dataSize = tmp;

             stream << regId << regInst << dataSize;

             stream.write(reg.data->getBufAddr(), dataSize);
         }
     }

     // If the stream failed for any reason, remove the FFDC file.
     if (!stream.good())
     {
         trace::err("Unable to write register dump FFDC file: %s",
                    path.string().c_str());
         io_userDataFiles.pop_back();
     }
 }

 //------------------------------------------------------------------------------

 std::string __getMessageRegistry(bool i_isCheckstop)
 {
     // For now, there are only two choices:
     return i_isCheckstop ? "org.open_power.HwDiags.Error.Checkstop"
                          : "org.open_power.HwDiags.Error.Predictive";
 }

 //------------------------------------------------------------------------------

 std::string __getMessageSeverity(bool i_isCheckstop)
 {
     // We could specify the PEL severity in the message registry entry. However,
     // that would require multiple copies of each entry for each possible
     // severity. As a workaround, we will not explicitly state the PEL severity
     // in the message registry. Instead, the message severity will be converted
     // into a PEL severity via the openpower-pels extention of phosphor-logging.

     // Initially, we'll use a severity that will generate a predictive PEL. This
     // is intended for Terminate Immediate (TI) errors and will require service.
     LogSvr::Entry::Level severity = LogSvr::Entry::Level::Warning;

     // If the reason for analysis was due to a system checsktop, the severity
     // will be upgraded to a unrecoverable PEL.
     if (i_isCheckstop)
         severity = LogSvr::Entry::Level::Error;

     // Convert the message severity to a string.
     return LogSvr::Entry::convertLevelToString(severity);
 }

 //------------------------------------------------------------------------------

 void createPel(const libhei::Signature& i_rootCause,
                const libhei::IsolationData& i_isoData)
 {
     // The message registry will require additional log data to fill in keywords
     // and additional log data.
     std::map<std::string, std::string> logData;

     // Keep track of the temporary files associated with the user data FFDC.
     // WARNING: Once the objects stored in this vector go out of scope, the
     //          temporary files will be deleted. So they must remain in scope
     //          until the PEL is submitted.
     std::vector<util::FFDCFile> userDataFiles;

     // In several cases, it is important to know if the reason for analysis was
     // due to a system checsktop.
     bool isCheckstop = __isCheckstop(i_isoData);

     // Set words 6-9 of the SRC.
     __setSrc(i_rootCause, logData);

     // Capture the complete signature list.
     __captureSignatureList(i_isoData, userDataFiles);

     // Capture the complete signature list.
     __captureRegisterDump(i_isoData, userDataFiles);

     // Now, that all of the user data files have been created, transform the
     // data into the proper format for the PEL.
     std::vector<util::FFDCTuple> userData;
     util::transformFFDC(userDataFiles, userData);

     // Get access to logging interface and method for creating log.
     auto bus = sdbusplus::bus::new_default_system();

     // Using direct create method (for additional data).
     auto method = bus.new_method_call(
         "xyz.openbmc_project.Logging", "/xyz/openbmc_project/logging",
         "xyz.openbmc_project.Logging.Create", "CreateWithFFDCFiles");

     // The "Create" method requires manually adding the process ID.
     logData["_PID"] = std::to_string(getpid());

     // Get the message registry entry for this failure.
     auto message = __getMessageRegistry(isCheckstop);

     // Get the message severity for this failure.
     auto severity = __getMessageSeverity(isCheckstop);

     // Add the message, with additional log and user data.
     method.append(message, severity, logData, userData);

     // Log the event.
     bus.call_noreply(method);
 }

 } // namespace analyzer
	#include <unistd.h>

	#include <analyzer/util.hpp>
	#include <hei_main.hpp>
	#include <phosphor-logging/elog.hpp>
	#include <sdbusplus/bus.hpp>
	#include <util/bin_stream.hpp>
	#include <util/ffdc_file.hpp>
	#include <util/pdbg.hpp>
	#include <util/trace.hpp>
	#include <xyz/openbmc_project/Logging/Create/server.hpp>
	#include <xyz/openbmc_project/Logging/Entry/server.hpp>

	#include <fstream>
	#include <memory>

	namespace LogSvr = sdbusplus::xyz::openbmc_project::Logging::server;

	namespace analyzer
	{

	//------------------------------------------------------------------------------

	enum FfdcSubType_t : uint8_t
	{
	FFDC_SIGNATURES = 0x01,
	FFDC_REGISTER_DUMP = 0x02,

	// For the callout section, the value of '0xCA' is required per the
	// phosphor-logging openpower-pel extention spec.
	FFDC_CALLOUTS = 0xCA,
	};

	enum FfdcVersion_t : uint8_t
	{
	FFDC_VERSION1 = 0x01,
	};

	//------------------------------------------------------------------------------

	bool __isCheckstop(const libhei::IsolationData& i_isoData)
	{
	// Look for any signature with a system checkstop attention.
	auto list = i_isoData.getSignatureList();
	auto itr = std::find_if(list.begin(), list.end(), [](const auto& s) {
	return libhei::ATTN_TYPE_CHECKSTOP == s.getAttnType();
	});

	return list.end() != itr;
	}

	//------------------------------------------------------------------------------

	void __getSrc(const libhei::Signature& i_signature, uint32_t& o_word6,
	uint32_t& o_word7, uint32_t& o_word8)
	{
	// [ 0:15] chip model
	// [16:23] reserved space in chip ID
	// [24:31] chip EC level
	o_word6 = i_signature.getChip().getType();

	// [ 0:15] chip position
	// [16:23] unused
	// [24:31] signature attention type
	auto pos = util::pdbg::getChipPos(i_signature.getChip());
	auto attn = i_signature.getAttnType();

	o_word7 = (pos & 0xffff) << 16 \| (attn & 0xff);

	// [ 0:15] signature ID
	// [16:23] signature instance
	// [24:31] signature bit position
	o_word8 = i_signature.toUint32();

	// Word 9 is currently unused
	}

	//------------------------------------------------------------------------------

	void __setSrc(const libhei::Signature& i_rootCause,
	std::map<std::string, std::string>& io_logData)
	{
	uint32_t word6 = 0, word7 = 0, word8 = 0;
	__getSrc(i_rootCause, word6, word7, word8);

	io_logData["SRC6"] = std::to_string(word6);
	io_logData["SRC7"] = std::to_string(word7);
	io_logData["SRC8"] = std::to_string(word8);
	}

	//------------------------------------------------------------------------------

	void __captureSignatureList(const libhei::IsolationData& i_isoData,
	std::vector<util::FFDCFile>& io_userDataFiles)
	{
	// Create a new entry for this user data section regardless if there are any
	// signatures in the list.
	io_userDataFiles.emplace_back(util::FFDCFormat::Custom, FFDC_SIGNATURES,
	FFDC_VERSION1);

	// Create a streamer for easy writing to the FFDC file.
	auto path = io_userDataFiles.back().getPath();
	util::BinFileWriter stream{path};

	// The first 4 bytes in the FFDC contains the number of signatures in the
	// list. Then, the list of signatures will follow.

	auto list = i_isoData.getSignatureList();

	uint32_t numSigs = list.size();
	stream << numSigs;

	for (const auto& sig : list)
	{
	// Each signature will use the same format as the SRC (12 bytes each).
	uint32_t word6 = 0, word7 = 0, word8 = 0;
	__getSrc(sig, word6, word7, word8);
	stream << word6 << word7 << word8;
	}

	// If the stream failed for any reason, remove the FFDC file.
	if (!stream.good())
	{
	trace::err("Unable to write signature list FFDC file: %s",
	path.string().c_str());
	io_userDataFiles.pop_back();
	}
	}

	//------------------------------------------------------------------------------

	void __captureRegisterDump(const libhei::IsolationData& i_isoData,
	std::vector<util::FFDCFile>& io_userDataFiles)
	{
	// Create a new entry for this user data section regardless if there are any
	// registers in the dump.
	io_userDataFiles.emplace_back(util::FFDCFormat::Custom, FFDC_REGISTER_DUMP,
	FFDC_VERSION1);

	// Create a streamer for easy writing to the FFDC file.
	auto path = io_userDataFiles.back().getPath();
	util::BinFileWriter stream{path};

	// The first 4 bytes in the FFDC contains the number of chips with register
	// data. Then the data for each chip will follow.

	auto dump = i_isoData.getRegisterDump();

	uint32_t numChips = dump.size();
	stream << numChips;

	for (const auto& entry : dump)
	{
	auto chip = entry.first;
	auto regList = entry.second;

	// Each chip will have the following information:
	// 4 byte chip model/EC
	// 2 byte chip position
	// 4 byte number of registers
	// Then the data for each register will follow.

	uint32_t chipType = chip.getType();
	uint16_t chipPos = util::pdbg::getChipPos(chip);
	uint32_t numRegs = regList.size();
	stream << chipType << chipPos << numRegs;

	for (const auto& reg : regList)
	{
	// Each register will have the following information:
	// 3 byte register ID
	// 1 byte register instance
	// 1 byte data size
	// * byte data buffer (* depends on value of data size)

	libhei::RegisterId_t regId = reg.regId; // 3 byte
	libhei::Instance_t regInst = reg.regInst; // 1 byte

	auto tmp = libhei::BitString::getMinBytes(reg.data->getBitLen());
	if (255 < tmp)
	{
	trace::inf("Register data execeeded 255 and was truncated: "
	"regId=0x%06x regInst=%u",
	regId, regInst);
	tmp = 255;
	}
	uint8_t dataSize = tmp;

	stream << regId << regInst << dataSize;

	stream.write(reg.data->getBufAddr(), dataSize);
	}
	}

	// If the stream failed for any reason, remove the FFDC file.
	if (!stream.good())
	{
	trace::err("Unable to write register dump FFDC file: %s",
	path.string().c_str());
	io_userDataFiles.pop_back();
	}
	}

	//------------------------------------------------------------------------------

	std::string __getMessageRegistry(bool i_isCheckstop)
	{
	// For now, there are only two choices:
	return i_isCheckstop ? "org.open_power.HwDiags.Error.Checkstop"
	: "org.open_power.HwDiags.Error.Predictive";
	}

	//------------------------------------------------------------------------------

	std::string __getMessageSeverity(bool i_isCheckstop)
	{
	// We could specify the PEL severity in the message registry entry. However,
	// that would require multiple copies of each entry for each possible
	// severity. As a workaround, we will not explicitly state the PEL severity
	// in the message registry. Instead, the message severity will be converted
	// into a PEL severity via the openpower-pels extention of phosphor-logging.

	// Initially, we'll use a severity that will generate a predictive PEL. This
	// is intended for Terminate Immediate (TI) errors and will require service.
	LogSvr::Entry::Level severity = LogSvr::Entry::Level::Warning;

	// If the reason for analysis was due to a system checsktop, the severity
	// will be upgraded to a unrecoverable PEL.
	if (i_isCheckstop)
	severity = LogSvr::Entry::Level::Error;

	// Convert the message severity to a string.
	return LogSvr::Entry::convertLevelToString(severity);
	}

	//------------------------------------------------------------------------------

	void createPel(const libhei::Signature& i_rootCause,
	const libhei::IsolationData& i_isoData)
	{
	// The message registry will require additional log data to fill in keywords
	// and additional log data.
	std::map<std::string, std::string> logData;

	// Keep track of the temporary files associated with the user data FFDC.
	// WARNING: Once the objects stored in this vector go out of scope, the
	// temporary files will be deleted. So they must remain in scope
	// until the PEL is submitted.
	std::vector<util::FFDCFile> userDataFiles;

	// In several cases, it is important to know if the reason for analysis was
	// due to a system checsktop.
	bool isCheckstop = __isCheckstop(i_isoData);

	// Set words 6-9 of the SRC.
	__setSrc(i_rootCause, logData);

	// Capture the complete signature list.
	__captureSignatureList(i_isoData, userDataFiles);

	// Capture the complete signature list.
	__captureRegisterDump(i_isoData, userDataFiles);

	// Now, that all of the user data files have been created, transform the
	// data into the proper format for the PEL.
	std::vector<util::FFDCTuple> userData;
	util::transformFFDC(userDataFiles, userData);

	// Get access to logging interface and method for creating log.
	auto bus = sdbusplus::bus::new_default_system();

	// Using direct create method (for additional data).
	auto method = bus.new_method_call(
	"xyz.openbmc_project.Logging", "/xyz/openbmc_project/logging",
	"xyz.openbmc_project.Logging.Create", "CreateWithFFDCFiles");

	// The "Create" method requires manually adding the process ID.
	logData["_PID"] = std::to_string(getpid());

	// Get the message registry entry for this failure.
	auto message = __getMessageRegistry(isCheckstop);

	// Get the message severity for this failure.
	auto severity = __getMessageSeverity(isCheckstop);

	// Add the message, with additional log and user data.
	method.append(message, severity, logData, userData);

	// Log the event.
	bus.call_noreply(method);
	}

	} // namespace analyzer