drivers/firmware/efi/cper-x86.c - kernel/common - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 // Copyright (C) 2018, Advanced Micro Devices, Inc.

 #include <linux/cper.h>

 /*
  * We don't need a "CPER_IA" prefix since these are all locally defined.
  * This will save us a lot of line space.
  */
 #define VALID_LAPIC_ID			BIT_ULL(0)
 #define VALID_CPUID_INFO		BIT_ULL(1)
 #define VALID_PROC_ERR_INFO_NUM(bits)	(((bits) & GENMASK_ULL(7, 2)) >> 2)
 #define VALID_PROC_CXT_INFO_NUM(bits)	(((bits) & GENMASK_ULL(13, 8)) >> 8)

 #define INFO_ERR_STRUCT_TYPE_CACHE					\
 	GUID_INIT(0xA55701F5, 0xE3EF, 0x43DE, 0xAC, 0x72, 0x24, 0x9B,	\
 		  0x57, 0x3F, 0xAD, 0x2C)
 #define INFO_ERR_STRUCT_TYPE_TLB					\
 	GUID_INIT(0xFC06B535, 0x5E1F, 0x4562, 0x9F, 0x25, 0x0A, 0x3B,	\
 		  0x9A, 0xDB, 0x63, 0xC3)
 #define INFO_ERR_STRUCT_TYPE_BUS					\
 	GUID_INIT(0x1CF3F8B3, 0xC5B1, 0x49a2, 0xAA, 0x59, 0x5E, 0xEF,	\
 		  0x92, 0xFF, 0xA6, 0x3C)
 #define INFO_ERR_STRUCT_TYPE_MS						\
 	GUID_INIT(0x48AB7F57, 0xDC34, 0x4f6c, 0xA7, 0xD3, 0xB0, 0xB5,	\
 		  0xB0, 0xA7, 0x43, 0x14)

 #define INFO_VALID_CHECK_INFO		BIT_ULL(0)
 #define INFO_VALID_TARGET_ID		BIT_ULL(1)
 #define INFO_VALID_REQUESTOR_ID		BIT_ULL(2)
 #define INFO_VALID_RESPONDER_ID		BIT_ULL(3)
 #define INFO_VALID_IP			BIT_ULL(4)

 #define CHECK_VALID_TRANS_TYPE		BIT_ULL(0)
 #define CHECK_VALID_OPERATION		BIT_ULL(1)
 #define CHECK_VALID_LEVEL		BIT_ULL(2)
 #define CHECK_VALID_PCC			BIT_ULL(3)
 #define CHECK_VALID_UNCORRECTED		BIT_ULL(4)
 #define CHECK_VALID_PRECISE_IP		BIT_ULL(5)
 #define CHECK_VALID_RESTARTABLE_IP	BIT_ULL(6)
 #define CHECK_VALID_OVERFLOW		BIT_ULL(7)

 #define CHECK_VALID_BUS_PART_TYPE	BIT_ULL(8)
 #define CHECK_VALID_BUS_TIME_OUT	BIT_ULL(9)
 #define CHECK_VALID_BUS_ADDR_SPACE	BIT_ULL(10)

 #define CHECK_VALID_BITS(check)		(((check) & GENMASK_ULL(15, 0)))
 #define CHECK_TRANS_TYPE(check)		(((check) & GENMASK_ULL(17, 16)) >> 16)
 #define CHECK_OPERATION(check)		(((check) & GENMASK_ULL(21, 18)) >> 18)
 #define CHECK_LEVEL(check)		(((check) & GENMASK_ULL(24, 22)) >> 22)
 #define CHECK_PCC			BIT_ULL(25)
 #define CHECK_UNCORRECTED		BIT_ULL(26)
 #define CHECK_PRECISE_IP		BIT_ULL(27)
 #define CHECK_RESTARTABLE_IP		BIT_ULL(28)
 #define CHECK_OVERFLOW			BIT_ULL(29)

 #define CHECK_BUS_PART_TYPE(check)	(((check) & GENMASK_ULL(31, 30)) >> 30)
 #define CHECK_BUS_TIME_OUT		BIT_ULL(32)
 #define CHECK_BUS_ADDR_SPACE(check)	(((check) & GENMASK_ULL(34, 33)) >> 33)

 #define CHECK_VALID_MS_ERR_TYPE		BIT_ULL(0)
 #define CHECK_VALID_MS_PCC		BIT_ULL(1)
 #define CHECK_VALID_MS_UNCORRECTED	BIT_ULL(2)
 #define CHECK_VALID_MS_PRECISE_IP	BIT_ULL(3)
 #define CHECK_VALID_MS_RESTARTABLE_IP	BIT_ULL(4)
 #define CHECK_VALID_MS_OVERFLOW		BIT_ULL(5)

 #define CHECK_MS_ERR_TYPE(check)	(((check) & GENMASK_ULL(18, 16)) >> 16)
 #define CHECK_MS_PCC			BIT_ULL(19)
 #define CHECK_MS_UNCORRECTED		BIT_ULL(20)
 #define CHECK_MS_PRECISE_IP		BIT_ULL(21)
 #define CHECK_MS_RESTARTABLE_IP		BIT_ULL(22)
 #define CHECK_MS_OVERFLOW		BIT_ULL(23)

 #define CTX_TYPE_MSR			1
 #define CTX_TYPE_MMREG			7

 enum err_types {
 	ERR_TYPE_CACHE = 0,
 	ERR_TYPE_TLB,
 	ERR_TYPE_BUS,
 	ERR_TYPE_MS,
 	N_ERR_TYPES
 };

 static enum err_types cper_get_err_type(const guid_t *err_type)
 {
 	if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_CACHE))
 		return ERR_TYPE_CACHE;
 	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_TLB))
 		return ERR_TYPE_TLB;
 	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_BUS))
 		return ERR_TYPE_BUS;
 	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_MS))
 		return ERR_TYPE_MS;
 	else
 		return N_ERR_TYPES;
 }

 static const char * const ia_check_trans_type_strs[] = {
 	"Instruction",
 	"Data Access",
 	"Generic",
 };

 static const char * const ia_check_op_strs[] = {
 	"generic error",
 	"generic read",
 	"generic write",
 	"data read",
 	"data write",
 	"instruction fetch",
 	"prefetch",
 	"eviction",
 	"snoop",
 };

 static const char * const ia_check_bus_part_type_strs[] = {
 	"Local Processor originated request",
 	"Local Processor responded to request",
 	"Local Processor observed",
 	"Generic",
 };

 static const char * const ia_check_bus_addr_space_strs[] = {
 	"Memory Access",
 	"Reserved",
 	"I/O",
 	"Other Transaction",
 };

 static const char * const ia_check_ms_error_type_strs[] = {
 	"No Error",
 	"Unclassified",
 	"Microcode ROM Parity Error",
 	"External Error",
 	"FRC Error",
 	"Internal Unclassified",
 };

 static const char * const ia_reg_ctx_strs[] = {
 	"Unclassified Data",
 	"MSR Registers (Machine Check and other MSRs)",
 	"32-bit Mode Execution Context",
 	"64-bit Mode Execution Context",
 	"FXSAVE Context",
 	"32-bit Mode Debug Registers (DR0-DR7)",
 	"64-bit Mode Debug Registers (DR0-DR7)",
 	"Memory Mapped Registers",
 };

 static inline void print_bool(char *str, const char *pfx, u64 check, u64 bit)
 {
 	printk("%s%s: %s\n", pfx, str, (check & bit) ? "true" : "false");
 }

 static void print_err_info_ms(const char *pfx, u16 validation_bits, u64 check)
 {
 	if (validation_bits & CHECK_VALID_MS_ERR_TYPE) {
 		u8 err_type = CHECK_MS_ERR_TYPE(check);

 		printk("%sError Type: %u, %s\n", pfx, err_type,
 		       err_type < ARRAY_SIZE(ia_check_ms_error_type_strs) ?
 		       ia_check_ms_error_type_strs[err_type] : "unknown");
 	}

 	if (validation_bits & CHECK_VALID_MS_PCC)
 		print_bool("Processor Context Corrupt", pfx, check, CHECK_MS_PCC);

 	if (validation_bits & CHECK_VALID_MS_UNCORRECTED)
 		print_bool("Uncorrected", pfx, check, CHECK_MS_UNCORRECTED);

 	if (validation_bits & CHECK_VALID_MS_PRECISE_IP)
 		print_bool("Precise IP", pfx, check, CHECK_MS_PRECISE_IP);

 	if (validation_bits & CHECK_VALID_MS_RESTARTABLE_IP)
 		print_bool("Restartable IP", pfx, check, CHECK_MS_RESTARTABLE_IP);

 	if (validation_bits & CHECK_VALID_MS_OVERFLOW)
 		print_bool("Overflow", pfx, check, CHECK_MS_OVERFLOW);
 }

 static void print_err_info(const char *pfx, u8 err_type, u64 check)
 {
 	u16 validation_bits = CHECK_VALID_BITS(check);

 	/*
 	 * The MS Check structure varies a lot from the others, so use a
 	 * separate function for decoding.
 	 */
 	if (err_type == ERR_TYPE_MS)
 		return print_err_info_ms(pfx, validation_bits, check);

 	if (validation_bits & CHECK_VALID_TRANS_TYPE) {
 		u8 trans_type = CHECK_TRANS_TYPE(check);

 		printk("%sTransaction Type: %u, %s\n", pfx, trans_type,
 		       trans_type < ARRAY_SIZE(ia_check_trans_type_strs) ?
 		       ia_check_trans_type_strs[trans_type] : "unknown");
 	}

 	if (validation_bits & CHECK_VALID_OPERATION) {
 		u8 op = CHECK_OPERATION(check);

 		/*
 		 * CACHE has more operation types than TLB or BUS, though the
 		 * name and the order are the same.
 		 */
 		u8 max_ops = (err_type == ERR_TYPE_CACHE) ? 9 : 7;

 		printk("%sOperation: %u, %s\n", pfx, op,
 		       op < max_ops ? ia_check_op_strs[op] : "unknown");
 	}

 	if (validation_bits & CHECK_VALID_LEVEL)
 		printk("%sLevel: %llu\n", pfx, CHECK_LEVEL(check));

 	if (validation_bits & CHECK_VALID_PCC)
 		print_bool("Processor Context Corrupt", pfx, check, CHECK_PCC);

 	if (validation_bits & CHECK_VALID_UNCORRECTED)
 		print_bool("Uncorrected", pfx, check, CHECK_UNCORRECTED);

 	if (validation_bits & CHECK_VALID_PRECISE_IP)
 		print_bool("Precise IP", pfx, check, CHECK_PRECISE_IP);

 	if (validation_bits & CHECK_VALID_RESTARTABLE_IP)
 		print_bool("Restartable IP", pfx, check, CHECK_RESTARTABLE_IP);

 	if (validation_bits & CHECK_VALID_OVERFLOW)
 		print_bool("Overflow", pfx, check, CHECK_OVERFLOW);

 	if (err_type != ERR_TYPE_BUS)
 		return;

 	if (validation_bits & CHECK_VALID_BUS_PART_TYPE) {
 		u8 part_type = CHECK_BUS_PART_TYPE(check);

 		printk("%sParticipation Type: %u, %s\n", pfx, part_type,
 		       part_type < ARRAY_SIZE(ia_check_bus_part_type_strs) ?
 		       ia_check_bus_part_type_strs[part_type] : "unknown");
 	}

 	if (validation_bits & CHECK_VALID_BUS_TIME_OUT)
 		print_bool("Time Out", pfx, check, CHECK_BUS_TIME_OUT);

 	if (validation_bits & CHECK_VALID_BUS_ADDR_SPACE) {
 		u8 addr_space = CHECK_BUS_ADDR_SPACE(check);

 		printk("%sAddress Space: %u, %s\n", pfx, addr_space,
 		       addr_space < ARRAY_SIZE(ia_check_bus_addr_space_strs) ?
 		       ia_check_bus_addr_space_strs[addr_space] : "unknown");
 	}
 }

 void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc)
 {
 	int i;
 	struct cper_ia_err_info *err_info;
 	struct cper_ia_proc_ctx *ctx_info;
 	char newpfx[64], infopfx[64];
 	u8 err_type;

 	if (proc->validation_bits & VALID_LAPIC_ID)
 		printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id);

 	if (proc->validation_bits & VALID_CPUID_INFO) {
 		printk("%sCPUID Info:\n", pfx);
 		print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid,
 			       sizeof(proc->cpuid), 0);
 	}

 	snprintf(newpfx, sizeof(newpfx), "%s ", pfx);

 	err_info = (struct cper_ia_err_info *)(proc + 1);
 	for (i = 0; i < VALID_PROC_ERR_INFO_NUM(proc->validation_bits); i++) {
 		printk("%sError Information Structure %d:\n", pfx, i);

 		err_type = cper_get_err_type(&err_info->err_type);
 		printk("%sError Structure Type: %s\n", newpfx,
 		       err_type < ARRAY_SIZE(cper_proc_error_type_strs) ?
 		       cper_proc_error_type_strs[err_type] : "unknown");

 		if (err_type >= N_ERR_TYPES) {
 			printk("%sError Structure Type: %pUl\n", newpfx,
 			       &err_info->err_type);
 		}

 		if (err_info->validation_bits & INFO_VALID_CHECK_INFO) {
 			printk("%sCheck Information: 0x%016llx\n", newpfx,
 			       err_info->check_info);

 			if (err_type < N_ERR_TYPES) {
 				snprintf(infopfx, sizeof(infopfx), "%s ",
 					 newpfx);

 				print_err_info(infopfx, err_type,
 					       err_info->check_info);
 			}
 		}

 		if (err_info->validation_bits & INFO_VALID_TARGET_ID) {
 			printk("%sTarget Identifier: 0x%016llx\n",
 			       newpfx, err_info->target_id);
 		}

 		if (err_info->validation_bits & INFO_VALID_REQUESTOR_ID) {
 			printk("%sRequestor Identifier: 0x%016llx\n",
 			       newpfx, err_info->requestor_id);
 		}

 		if (err_info->validation_bits & INFO_VALID_RESPONDER_ID) {
 			printk("%sResponder Identifier: 0x%016llx\n",
 			       newpfx, err_info->responder_id);
 		}

 		if (err_info->validation_bits & INFO_VALID_IP) {
 			printk("%sInstruction Pointer: 0x%016llx\n",
 			       newpfx, err_info->ip);
 		}

 		err_info++;
 	}

 	ctx_info = (struct cper_ia_proc_ctx *)err_info;
 	for (i = 0; i < VALID_PROC_CXT_INFO_NUM(proc->validation_bits); i++) {
 		int size = sizeof(*ctx_info) + ctx_info->reg_arr_size;
 		int groupsize = 4;

 		printk("%sContext Information Structure %d:\n", pfx, i);

 		printk("%sRegister Context Type: %s\n", newpfx,
 		       ctx_info->reg_ctx_type < ARRAY_SIZE(ia_reg_ctx_strs) ?
 		       ia_reg_ctx_strs[ctx_info->reg_ctx_type] : "unknown");

 		printk("%sRegister Array Size: 0x%04x\n", newpfx,
 		       ctx_info->reg_arr_size);

 		if (ctx_info->reg_ctx_type == CTX_TYPE_MSR) {
 			groupsize = 8; /* MSRs are 8 bytes wide. */
 			printk("%sMSR Address: 0x%08x\n", newpfx,
 			       ctx_info->msr_addr);
 		}

 		if (ctx_info->reg_ctx_type == CTX_TYPE_MMREG) {
 			printk("%sMM Register Address: 0x%016llx\n", newpfx,
 			       ctx_info->mm_reg_addr);
 		}

 		printk("%sRegister Array:\n", newpfx);
 		print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, groupsize,
 			       (ctx_info + 1), ctx_info->reg_arr_size, 0);

 		ctx_info = (struct cper_ia_proc_ctx *)((long)ctx_info + size);
 	}
 }
	// SPDX-License-Identifier: GPL-2.0
	// Copyright (C) 2018, Advanced Micro Devices, Inc.

	#include <linux/cper.h>

	/*
	* We don't need a "CPER_IA" prefix since these are all locally defined.
	* This will save us a lot of line space.
	*/
	#define VALID_LAPIC_ID BIT_ULL(0)
	#define VALID_CPUID_INFO BIT_ULL(1)
	#define VALID_PROC_ERR_INFO_NUM(bits) (((bits) & GENMASK_ULL(7, 2)) >> 2)
	#define VALID_PROC_CXT_INFO_NUM(bits) (((bits) & GENMASK_ULL(13, 8)) >> 8)

	#define INFO_ERR_STRUCT_TYPE_CACHE \
	GUID_INIT(0xA55701F5, 0xE3EF, 0x43DE, 0xAC, 0x72, 0x24, 0x9B, \
	0x57, 0x3F, 0xAD, 0x2C)
	#define INFO_ERR_STRUCT_TYPE_TLB \
	GUID_INIT(0xFC06B535, 0x5E1F, 0x4562, 0x9F, 0x25, 0x0A, 0x3B, \
	0x9A, 0xDB, 0x63, 0xC3)
	#define INFO_ERR_STRUCT_TYPE_BUS \
	GUID_INIT(0x1CF3F8B3, 0xC5B1, 0x49a2, 0xAA, 0x59, 0x5E, 0xEF, \
	0x92, 0xFF, 0xA6, 0x3C)
	#define INFO_ERR_STRUCT_TYPE_MS \
	GUID_INIT(0x48AB7F57, 0xDC34, 0x4f6c, 0xA7, 0xD3, 0xB0, 0xB5, \
	0xB0, 0xA7, 0x43, 0x14)

	#define INFO_VALID_CHECK_INFO BIT_ULL(0)
	#define INFO_VALID_TARGET_ID BIT_ULL(1)
	#define INFO_VALID_REQUESTOR_ID BIT_ULL(2)
	#define INFO_VALID_RESPONDER_ID BIT_ULL(3)
	#define INFO_VALID_IP BIT_ULL(4)

	#define CHECK_VALID_TRANS_TYPE BIT_ULL(0)
	#define CHECK_VALID_OPERATION BIT_ULL(1)
	#define CHECK_VALID_LEVEL BIT_ULL(2)
	#define CHECK_VALID_PCC BIT_ULL(3)
	#define CHECK_VALID_UNCORRECTED BIT_ULL(4)
	#define CHECK_VALID_PRECISE_IP BIT_ULL(5)
	#define CHECK_VALID_RESTARTABLE_IP BIT_ULL(6)
	#define CHECK_VALID_OVERFLOW BIT_ULL(7)

	#define CHECK_VALID_BUS_PART_TYPE BIT_ULL(8)
	#define CHECK_VALID_BUS_TIME_OUT BIT_ULL(9)
	#define CHECK_VALID_BUS_ADDR_SPACE BIT_ULL(10)

	#define CHECK_VALID_BITS(check) (((check) & GENMASK_ULL(15, 0)))
	#define CHECK_TRANS_TYPE(check) (((check) & GENMASK_ULL(17, 16)) >> 16)
	#define CHECK_OPERATION(check) (((check) & GENMASK_ULL(21, 18)) >> 18)
	#define CHECK_LEVEL(check) (((check) & GENMASK_ULL(24, 22)) >> 22)
	#define CHECK_PCC BIT_ULL(25)
	#define CHECK_UNCORRECTED BIT_ULL(26)
	#define CHECK_PRECISE_IP BIT_ULL(27)
	#define CHECK_RESTARTABLE_IP BIT_ULL(28)
	#define CHECK_OVERFLOW BIT_ULL(29)

	#define CHECK_BUS_PART_TYPE(check) (((check) & GENMASK_ULL(31, 30)) >> 30)
	#define CHECK_BUS_TIME_OUT BIT_ULL(32)
	#define CHECK_BUS_ADDR_SPACE(check) (((check) & GENMASK_ULL(34, 33)) >> 33)

	#define CHECK_VALID_MS_ERR_TYPE BIT_ULL(0)
	#define CHECK_VALID_MS_PCC BIT_ULL(1)
	#define CHECK_VALID_MS_UNCORRECTED BIT_ULL(2)
	#define CHECK_VALID_MS_PRECISE_IP BIT_ULL(3)
	#define CHECK_VALID_MS_RESTARTABLE_IP BIT_ULL(4)
	#define CHECK_VALID_MS_OVERFLOW BIT_ULL(5)

	#define CHECK_MS_ERR_TYPE(check) (((check) & GENMASK_ULL(18, 16)) >> 16)
	#define CHECK_MS_PCC BIT_ULL(19)
	#define CHECK_MS_UNCORRECTED BIT_ULL(20)
	#define CHECK_MS_PRECISE_IP BIT_ULL(21)
	#define CHECK_MS_RESTARTABLE_IP BIT_ULL(22)
	#define CHECK_MS_OVERFLOW BIT_ULL(23)

	#define CTX_TYPE_MSR 1
	#define CTX_TYPE_MMREG 7

	enum err_types {
	ERR_TYPE_CACHE = 0,
	ERR_TYPE_TLB,
	ERR_TYPE_BUS,
	ERR_TYPE_MS,
	N_ERR_TYPES
	};

	static enum err_types cper_get_err_type(const guid_t *err_type)
	{
	if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_CACHE))
	return ERR_TYPE_CACHE;
	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_TLB))
	return ERR_TYPE_TLB;
	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_BUS))
	return ERR_TYPE_BUS;
	else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_MS))
	return ERR_TYPE_MS;
	else
	return N_ERR_TYPES;
	}

	static const char * const ia_check_trans_type_strs[] = {
	"Instruction",
	"Data Access",
	"Generic",
	};

	static const char * const ia_check_op_strs[] = {
	"generic error",
	"generic read",
	"generic write",
	"data read",
	"data write",
	"instruction fetch",
	"prefetch",
	"eviction",
	"snoop",
	};

	static const char * const ia_check_bus_part_type_strs[] = {
	"Local Processor originated request",
	"Local Processor responded to request",
	"Local Processor observed",
	"Generic",
	};

	static const char * const ia_check_bus_addr_space_strs[] = {
	"Memory Access",
	"Reserved",
	"I/O",
	"Other Transaction",
	};

	static const char * const ia_check_ms_error_type_strs[] = {
	"No Error",
	"Unclassified",
	"Microcode ROM Parity Error",
	"External Error",
	"FRC Error",
	"Internal Unclassified",
	};

	static const char * const ia_reg_ctx_strs[] = {
	"Unclassified Data",
	"MSR Registers (Machine Check and other MSRs)",
	"32-bit Mode Execution Context",
	"64-bit Mode Execution Context",
	"FXSAVE Context",
	"32-bit Mode Debug Registers (DR0-DR7)",
	"64-bit Mode Debug Registers (DR0-DR7)",
	"Memory Mapped Registers",
	};

	static inline void print_bool(char str, const char pfx, u64 check, u64 bit)
	{
	printk("%s%s: %s\n", pfx, str, (check & bit) ? "true" : "false");
	}

	static void print_err_info_ms(const char *pfx, u16 validation_bits, u64 check)
	{
	if (validation_bits & CHECK_VALID_MS_ERR_TYPE) {
	u8 err_type = CHECK_MS_ERR_TYPE(check);

	printk("%sError Type: %u, %s\n", pfx, err_type,
	err_type < ARRAY_SIZE(ia_check_ms_error_type_strs) ?
	ia_check_ms_error_type_strs[err_type] : "unknown");
	}

	if (validation_bits & CHECK_VALID_MS_PCC)
	print_bool("Processor Context Corrupt", pfx, check, CHECK_MS_PCC);

	if (validation_bits & CHECK_VALID_MS_UNCORRECTED)
	print_bool("Uncorrected", pfx, check, CHECK_MS_UNCORRECTED);

	if (validation_bits & CHECK_VALID_MS_PRECISE_IP)
	print_bool("Precise IP", pfx, check, CHECK_MS_PRECISE_IP);

	if (validation_bits & CHECK_VALID_MS_RESTARTABLE_IP)
	print_bool("Restartable IP", pfx, check, CHECK_MS_RESTARTABLE_IP);

	if (validation_bits & CHECK_VALID_MS_OVERFLOW)
	print_bool("Overflow", pfx, check, CHECK_MS_OVERFLOW);
	}

	static void print_err_info(const char *pfx, u8 err_type, u64 check)
	{
	u16 validation_bits = CHECK_VALID_BITS(check);

	/*
	* The MS Check structure varies a lot from the others, so use a
	* separate function for decoding.
	*/
	if (err_type == ERR_TYPE_MS)
	return print_err_info_ms(pfx, validation_bits, check);

	if (validation_bits & CHECK_VALID_TRANS_TYPE) {
	u8 trans_type = CHECK_TRANS_TYPE(check);

	printk("%sTransaction Type: %u, %s\n", pfx, trans_type,
	trans_type < ARRAY_SIZE(ia_check_trans_type_strs) ?
	ia_check_trans_type_strs[trans_type] : "unknown");
	}

	if (validation_bits & CHECK_VALID_OPERATION) {
	u8 op = CHECK_OPERATION(check);

	/*
	* CACHE has more operation types than TLB or BUS, though the
	* name and the order are the same.
	*/
	u8 max_ops = (err_type == ERR_TYPE_CACHE) ? 9 : 7;

	printk("%sOperation: %u, %s\n", pfx, op,
	op < max_ops ? ia_check_op_strs[op] : "unknown");
	}

	if (validation_bits & CHECK_VALID_LEVEL)
	printk("%sLevel: %llu\n", pfx, CHECK_LEVEL(check));

	if (validation_bits & CHECK_VALID_PCC)
	print_bool("Processor Context Corrupt", pfx, check, CHECK_PCC);

	if (validation_bits & CHECK_VALID_UNCORRECTED)
	print_bool("Uncorrected", pfx, check, CHECK_UNCORRECTED);

	if (validation_bits & CHECK_VALID_PRECISE_IP)
	print_bool("Precise IP", pfx, check, CHECK_PRECISE_IP);

	if (validation_bits & CHECK_VALID_RESTARTABLE_IP)
	print_bool("Restartable IP", pfx, check, CHECK_RESTARTABLE_IP);

	if (validation_bits & CHECK_VALID_OVERFLOW)
	print_bool("Overflow", pfx, check, CHECK_OVERFLOW);

	if (err_type != ERR_TYPE_BUS)
	return;

	if (validation_bits & CHECK_VALID_BUS_PART_TYPE) {
	u8 part_type = CHECK_BUS_PART_TYPE(check);

	printk("%sParticipation Type: %u, %s\n", pfx, part_type,
	part_type < ARRAY_SIZE(ia_check_bus_part_type_strs) ?
	ia_check_bus_part_type_strs[part_type] : "unknown");
	}

	if (validation_bits & CHECK_VALID_BUS_TIME_OUT)
	print_bool("Time Out", pfx, check, CHECK_BUS_TIME_OUT);

	if (validation_bits & CHECK_VALID_BUS_ADDR_SPACE) {
	u8 addr_space = CHECK_BUS_ADDR_SPACE(check);

	printk("%sAddress Space: %u, %s\n", pfx, addr_space,
	addr_space < ARRAY_SIZE(ia_check_bus_addr_space_strs) ?
	ia_check_bus_addr_space_strs[addr_space] : "unknown");
	}
	}

	void cper_print_proc_ia(const char pfx, const struct cper_sec_proc_ia proc)
	{
	int i;
	struct cper_ia_err_info *err_info;
	struct cper_ia_proc_ctx *ctx_info;
	char newpfx[64], infopfx[64];
	u8 err_type;

	if (proc->validation_bits & VALID_LAPIC_ID)
	printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id);

	if (proc->validation_bits & VALID_CPUID_INFO) {
	printk("%sCPUID Info:\n", pfx);
	print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid,
	sizeof(proc->cpuid), 0);
	}

	snprintf(newpfx, sizeof(newpfx), "%s ", pfx);

	err_info = (struct cper_ia_err_info *)(proc + 1);
	for (i = 0; i < VALID_PROC_ERR_INFO_NUM(proc->validation_bits); i++) {
	printk("%sError Information Structure %d:\n", pfx, i);

	err_type = cper_get_err_type(&err_info->err_type);
	printk("%sError Structure Type: %s\n", newpfx,
	err_type < ARRAY_SIZE(cper_proc_error_type_strs) ?
	cper_proc_error_type_strs[err_type] : "unknown");

	if (err_type >= N_ERR_TYPES) {
	printk("%sError Structure Type: %pUl\n", newpfx,
	&err_info->err_type);
	}

	if (err_info->validation_bits & INFO_VALID_CHECK_INFO) {
	printk("%sCheck Information: 0x%016llx\n", newpfx,
	err_info->check_info);

	if (err_type < N_ERR_TYPES) {
	snprintf(infopfx, sizeof(infopfx), "%s ",
	newpfx);

	print_err_info(infopfx, err_type,
	err_info->check_info);
	}
	}

	if (err_info->validation_bits & INFO_VALID_TARGET_ID) {
	printk("%sTarget Identifier: 0x%016llx\n",
	newpfx, err_info->target_id);
	}

	if (err_info->validation_bits & INFO_VALID_REQUESTOR_ID) {
	printk("%sRequestor Identifier: 0x%016llx\n",
	newpfx, err_info->requestor_id);
	}

	if (err_info->validation_bits & INFO_VALID_RESPONDER_ID) {
	printk("%sResponder Identifier: 0x%016llx\n",
	newpfx, err_info->responder_id);
	}

	if (err_info->validation_bits & INFO_VALID_IP) {
	printk("%sInstruction Pointer: 0x%016llx\n",
	newpfx, err_info->ip);
	}

	err_info++;
	}

	ctx_info = (struct cper_ia_proc_ctx *)err_info;
	for (i = 0; i < VALID_PROC_CXT_INFO_NUM(proc->validation_bits); i++) {
	int size = sizeof(*ctx_info) + ctx_info->reg_arr_size;
	int groupsize = 4;

	printk("%sContext Information Structure %d:\n", pfx, i);

	printk("%sRegister Context Type: %s\n", newpfx,
	ctx_info->reg_ctx_type < ARRAY_SIZE(ia_reg_ctx_strs) ?
	ia_reg_ctx_strs[ctx_info->reg_ctx_type] : "unknown");

	printk("%sRegister Array Size: 0x%04x\n", newpfx,
	ctx_info->reg_arr_size);

	if (ctx_info->reg_ctx_type == CTX_TYPE_MSR) {
	groupsize = 8; /* MSRs are 8 bytes wide. */
	printk("%sMSR Address: 0x%08x\n", newpfx,
	ctx_info->msr_addr);
	}

	if (ctx_info->reg_ctx_type == CTX_TYPE_MMREG) {
	printk("%sMM Register Address: 0x%016llx\n", newpfx,
	ctx_info->mm_reg_addr);
	}

	printk("%sRegister Array:\n", newpfx);
	print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, groupsize,
	(ctx_info + 1), ctx_info->reg_arr_size, 0);

	ctx_info = (struct cper_ia_proc_ctx *)((long)ctx_info + size);
	}
	}