diff --git a/.gitmodules b/.gitmodules
index fe722ec..c753963 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -5,6 +5,3 @@
 	path = contrib/libtl
 	url = https://review.trustedfirmware.org/shared/transfer-list-library
 	shallow = true
-[submodule "libeventlog"]
-	path = contrib/libeventlog
-	url = https://gerrit.oss.arm.com/trusted-firmware/libEventLog
diff --git a/Makefile b/Makefile
index 3ebf566..d5a18be 100644
--- a/Makefile
+++ b/Makefile
@@ -98,6 +98,9 @@
 
 DOCS_PATH		:=	docs
 
+# Path to Transfer List Library (LibTL)
+LIBTL_PATH		:=	contrib/libtl
+
 ifeq (${PLAT},)
   $(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform")
 endif
diff --git a/contrib/libeventlog b/contrib/libeventlog
deleted file mode 160000
index 762d494..0000000
--- a/contrib/libeventlog
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 762d494d6f4c0295627e4116f111b6f2c09c3db1
diff --git a/include/drivers/auth/crypto_mod.h b/include/drivers/auth/crypto_mod.h
new file mode 100644
index 0000000..bec19da
--- /dev/null
+++ b/include/drivers/auth/crypto_mod.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CRYPTO_MOD_H
+#define CRYPTO_MOD_H
+
+#define	CRYPTO_AUTH_VERIFY_ONLY			1
+#define	CRYPTO_HASH_CALC_ONLY			2
+#define	CRYPTO_AUTH_VERIFY_AND_HASH_CALC	3
+
+/* Return values */
+enum crypto_ret_value {
+	CRYPTO_SUCCESS = 0,
+	CRYPTO_ERR_INIT,
+	CRYPTO_ERR_HASH,
+	CRYPTO_ERR_SIGNATURE,
+	CRYPTO_ERR_DECRYPTION,
+	CRYPTO_ERR_UNKNOWN
+};
+
+#define CRYPTO_MAX_IV_SIZE		16U
+#define CRYPTO_MAX_TAG_SIZE		16U
+
+/* Decryption algorithm */
+enum crypto_dec_algo {
+	CRYPTO_GCM_DECRYPT = 0
+};
+
+/* Message digest algorithm */
+enum crypto_md_algo {
+	CRYPTO_MD_SHA256,
+	CRYPTO_MD_SHA384,
+	CRYPTO_MD_SHA512,
+};
+
+/* Maximum size as per the known stronger hash algorithm i.e.SHA512 */
+#define CRYPTO_MD_MAX_SIZE		64U
+
+/*
+ * Cryptographic library descriptor
+ */
+typedef struct crypto_lib_desc_s {
+	const char *name;
+
+	/* Initialize library. This function is not expected to fail. All errors
+	 * must be handled inside the function, asserting or panicking in case of
+	 * a non-recoverable error */
+	void (*init)(void);
+
+	/* Verify a digital signature. Return one of the
+	 * 'enum crypto_ret_value' options */
+	int (*verify_signature)(void *data_ptr, unsigned int data_len,
+				void *sig_ptr, unsigned int sig_len,
+				void *sig_alg, unsigned int sig_alg_len,
+				void *pk_ptr, unsigned int pk_len);
+
+	/* Verify a hash. Return one of the 'enum crypto_ret_value' options */
+	int (*verify_hash)(void *data_ptr, unsigned int data_len,
+			   void *digest_info_ptr, unsigned int digest_info_len);
+
+	/* Calculate a hash. Return hash value */
+	int (*calc_hash)(enum crypto_md_algo md_alg, void *data_ptr,
+			 unsigned int data_len,
+			 unsigned char output[CRYPTO_MD_MAX_SIZE]);
+
+	/* Convert Public key (optional) */
+	int (*convert_pk)(void *full_pk_ptr, unsigned int full_pk_len,
+			  void **hashed_pk_ptr, unsigned int *hashed_pk_len);
+
+	/*
+	 * Authenticated decryption. Return one of the
+	 * 'enum crypto_ret_value' options.
+	 */
+	int (*auth_decrypt)(enum crypto_dec_algo dec_algo, void *data_ptr,
+			    size_t len, const void *key, unsigned int key_len,
+			    unsigned int key_flags, const void *iv,
+			    unsigned int iv_len, const void *tag,
+			    unsigned int tag_len);
+} crypto_lib_desc_t;
+
+/* Public functions */
+#if CRYPTO_SUPPORT
+void crypto_mod_init(void);
+#else
+static inline void crypto_mod_init(void)
+{
+}
+#endif /* CRYPTO_SUPPORT */
+
+#if (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_ONLY) || \
+    (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC)
+int crypto_mod_verify_signature(void *data_ptr, unsigned int data_len,
+				void *sig_ptr, unsigned int sig_len,
+				void *sig_alg_ptr, unsigned int sig_alg_len,
+				void *pk_ptr, unsigned int pk_len);
+int crypto_mod_verify_hash(void *data_ptr, unsigned int data_len,
+			   void *digest_info_ptr, unsigned int digest_info_len);
+#endif /* (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_ONLY) || \
+	  (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC) */
+
+int crypto_mod_auth_decrypt(enum crypto_dec_algo dec_algo, void *data_ptr,
+			    size_t len, const void *key, unsigned int key_len,
+			    unsigned int key_flags, const void *iv,
+			    unsigned int iv_len, const void *tag,
+			    unsigned int tag_len);
+
+#if (CRYPTO_SUPPORT == CRYPTO_HASH_CALC_ONLY) || \
+    (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC)
+int crypto_mod_calc_hash(enum crypto_md_algo alg, void *data_ptr,
+			 unsigned int data_len,
+			 unsigned char output[CRYPTO_MD_MAX_SIZE]);
+#endif /* (CRYPTO_SUPPORT == CRYPTO_HASH_CALC_ONLY) || \
+	  (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC) */
+
+int crypto_mod_convert_pk(void *full_pk_ptr, unsigned int full_pk_len,
+			  void **hashed_pk_ptr, unsigned int *hashed_pk_len);
+
+/* Macro to register a cryptographic library */
+#define REGISTER_CRYPTO_LIB(_name, _init, _verify_signature, _verify_hash, \
+			    _calc_hash, _auth_decrypt, _convert_pk) \
+	const crypto_lib_desc_t crypto_lib_desc = { \
+		.name = _name, \
+		.init = _init, \
+		.verify_signature = _verify_signature, \
+		.verify_hash = _verify_hash, \
+		.calc_hash = _calc_hash, \
+		.auth_decrypt = _auth_decrypt, \
+		.convert_pk = _convert_pk \
+	}
+
+extern const crypto_lib_desc_t crypto_lib_desc;
+
+#endif /* CRYPTO_MOD_H */
diff --git a/include/drivers/measured_boot/event_log/tcg.h b/include/drivers/measured_boot/event_log/tcg.h
new file mode 100644
index 0000000..653f9c2
--- /dev/null
+++ b/include/drivers/measured_boot/event_log/tcg.h
@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2020-2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TCG_H
+#define TCG_H
+
+#include <stdint.h>
+#include <common/sha_common_macros.h>
+
+#define TCG_ID_EVENT_SIGNATURE_03	"Spec ID Event03"
+#define TCG_STARTUP_LOCALITY_SIGNATURE	"StartupLocality"
+
+#define TCG_SPEC_VERSION_MAJOR_TPM2   2
+#define TCG_SPEC_VERSION_MINOR_TPM2   0
+#define TCG_SPEC_ERRATA_TPM2          2
+
+/*
+ * Event types
+ * Ref. Table 9 Events
+ * TCG PC Client Platform Firmware Profile Specification.
+ */
+#define EV_PREBOOT_CERT				U(0x00000000)
+#define EV_POST_CODE				U(0x00000001)
+#define	EV_UNUSED				U(0x00000002)
+#define EV_NO_ACTION				U(0x00000003)
+#define EV_SEPARATOR				U(0x00000004)
+#define EV_ACTION				U(0x00000005)
+#define	EV_EVENT_TAG				U(0x00000006)
+#define EV_S_CRTM_CONTENTS			U(0x00000007)
+#define EV_S_CRTM_VERSION			U(0x00000008)
+#define EV_CPU_MICROCODE			U(0x00000009)
+#define EV_PLATFORM_CONFIG_FLAGS		U(0x0000000A)
+#define EV_TABLE_OF_DEVICES			U(0x0000000B)
+#define EV_COMPACT_HASH				U(0x0000000C)
+#define	EV_IPL					U(0x0000000D)
+#define	EV_IPL_PARTITION_DATA			U(0x0000000E)
+#define EV_NONHOST_CODE				U(0x0000000F)
+#define EV_NONHOST_CONFIG			U(0x00000010)
+#define EV_NONHOST_INFO				U(0x00000011)
+#define EV_OMIT_BOOT_DEVICE_EVENTS		U(0x00000012)
+#define	EV_EFI_EVENT_BASE			U(0x80000000)
+#define	EV_EFI_VARIABLE_DRIVER_CONFIG		U(0x80000001)
+#define EV_EFI_VARIABLE_BOOT			U(0x80000002)
+#define	EV_EFI_BOOT_SERVICES_APPLICATION	U(0x80000003)
+#define	EV_EFI_BOOT_SERVICES_DRIVER		U(0x80000004)
+#define	EV_EFI_RUNTIME_SERVICES_DRIVER		U(0x80000005)
+#define	EV_EFI_GPT_EVENT			U(0x80000006)
+#define	EV_EFI_ACTION				U(0x80000007)
+#define	EV_EFI_PLATFORM_FIRMWARE_BLOB		U(0x80000008)
+#define	EV_EFI_HANDOFF_TABLES			U(0x80000009)
+#define	EV_EFI_HCRTM_EVENT			U(0x80000010)
+#define	EV_EFI_VARIABLE_AUTHORITY		U(0x800000E0)
+
+/*
+ * TPM_ALG_ID constants.
+ * Ref. Table 9 - Definition of (UINT16) TPM_ALG_ID Constants
+ * Trusted Platform Module Library. Part 2: Structures
+ */
+#define TPM_ALG_SHA256		0x000B
+#define TPM_ALG_SHA384		0x000C
+#define TPM_ALG_SHA512		0x000D
+
+/* TCG Platform Type */
+#define PLATFORM_CLASS_CLIENT   0
+#define PLATFORM_CLASS_SERVER   1
+
+enum {
+	/*
+	 * SRTM, BIOS, Host Platform Extensions, Embedded
+	 * Option ROMs and PI Drivers
+	 */
+	PCR_0 = 0,
+	/* Host Platform Configuration */
+	PCR_1,
+	/* UEFI driver and application Code */
+	PCR_2,
+	/* UEFI driver and application Configuration and Data */
+	PCR_3,
+	/* UEFI Boot Manager Code (usually the MBR) and Boot Attempts */
+	PCR_4,
+	/*
+	 * Boot Manager Code Configuration and Data (for use
+	 * by the Boot Manager Code) and GPT/Partition Table
+	 */
+	PCR_5,
+	/* Host Platform Manufacturer Specific */
+	PCR_6,
+	/* Secure Boot Policy */
+	PCR_7,
+	/* 8-15: Defined for use by the Static OS */
+	PCR_8,
+	/* Debug */
+	PCR_16 = 16,
+
+	/* D-CRTM-measurements by DRTM implementation */
+	PCR_17 = 17,
+	/* DCE measurements by DRTM implementation */
+	PCR_18 = 18
+};
+
+#pragma pack(push, 1)
+
+/*
+ * PCR Event Header
+ * TCG EFI Protocol Specification
+ * 5.3 Event Log Header
+ */
+typedef struct {
+	/* PCRIndex:
+	 * The PCR Index to which this event is extended
+	 */
+	uint32_t	pcr_index;
+
+	/* EventType:
+	 * SHALL be an EV_NO_ACTION event
+	 */
+	uint32_t	event_type;
+
+	/* SHALL be 20 Bytes of 0x00 */
+	uint8_t		digest[SHA1_DIGEST_SIZE];
+
+	/* The size of the event */
+	uint32_t	event_size;
+
+	/* SHALL be a TCG_EfiSpecIdEvent */
+	uint8_t		event[];	/* [event_data_size] */
+} tcg_pcr_event_t;
+
+/*
+ * Log Header Entry Data
+ * Ref. Table 14 TCG_EfiSpecIdEventAlgorithmSize
+ * TCG PC Client Platform Firmware Profile 9.4.5.1
+ */
+typedef struct {
+	/* Algorithm ID (hashAlg) of the Hash used by BIOS */
+	uint16_t	algorithm_id;
+
+	/* The size of the digest produced by the implemented Hash algorithm */
+	uint16_t	digest_size;
+} id_event_algorithm_size_t;
+
+/*
+ * TCG_EfiSpecIdEvent structure
+ * Ref. Table 15 TCG_EfiSpecIdEvent
+ * TCG PC Client Platform Firmware Profile 9.4.5.1
+ */
+typedef struct {
+	/*
+	 * The NUL-terminated ASCII string "Spec ID Event03".
+	 * SHALL be set to {0x53, 0x70, 0x65, 0x63, 0x20, 0x49, 0x44,
+	 * 0x20, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x30, 0x33, 0x00}.
+	 */
+	uint8_t		signature[16];
+
+	/*
+	 * The value for the Platform Class.
+	 * The enumeration is defined in the TCG ACPI Specification Client
+	 * Common Header.
+	 */
+	uint32_t	platform_class;
+
+	/*
+	 * The PC Client Platform Profile Specification minor version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x00.
+	 */
+	uint8_t		spec_version_minor;
+
+	/*
+	 * The PC Client Platform Profile Specification major version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x02.
+	 */
+	uint8_t		spec_version_major;
+
+	/*
+	 * The PC Client Platform Profile Specification errata version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x02.
+	 */
+	uint8_t		spec_errata;
+
+	/*
+	 * Specifies the size of the UINTN fields used in various data
+	 * structures used in this specification.
+	 * 0x01 indicates UINT32 and 0x02 indicates UINT64.
+	 */
+	uint8_t		uintn_size;
+
+	/*
+	 * The number of Hash algorithms in the digestSizes field.
+	 * This field MUST be set to a value of 0x01 or greater.
+	 */
+	uint32_t	number_of_algorithms;
+
+	/*
+	 * Each TCG_EfiSpecIdEventAlgorithmSize SHALL contain an algorithmId
+	 * and digestSize for each hash algorithm used in the TCG_PCR_EVENT2
+	 * structure, the first of which is a Hash algorithmID and the second
+	 * is the size of the respective digest.
+	 */
+	id_event_algorithm_size_t    digest_size[]; /* number_of_algorithms */
+} id_event_struct_header_t;
+
+typedef struct {
+	/*
+	 * Size in bytes of the VendorInfo field.
+	 * Maximum value MUST be FFh bytes.
+	 */
+	uint8_t		vendor_info_size;
+
+	/*
+	 * Provided for use by Platform Firmware implementer. The value might
+	 * be used, for example, to provide more detailed information about the
+	 * specific BIOS such as BIOS revision numbers, etc. The values within
+	 * this field are not standardized and are implementer-specific.
+	 * Platform-specific or -unique information MUST NOT be provided in
+	 * this field.
+	 *
+	 */
+	uint8_t		vendor_info[];	/* [vendorInfoSize] */
+} id_event_struct_data_t;
+
+typedef struct {
+	id_event_struct_header_t	struct_header;
+	id_event_struct_data_t		struct_data;
+} id_event_struct_t;
+
+typedef struct {
+	tcg_pcr_event_t			header;
+	id_event_struct_header_t	struct_header;
+} id_event_headers_t;
+
+/* TPMT_HA Structure */
+typedef struct {
+	/* Selector of the hash contained in the digest that implies
+	 * the size of the digest
+	 */
+	uint16_t	algorithm_id;	/* AlgorithmId */
+
+	/* Digest, depends on AlgorithmId */
+	uint8_t		digest[];	/* Digest[] */
+} tpmt_ha;
+
+/*
+ * TPML_DIGEST_VALUES Structure
+ */
+typedef struct {
+	/* The number of digests in the list */
+	uint32_t	count;			/* Count */
+
+	/* The list of tagged digests, as sent to the TPM as part of a
+	 * TPM2_PCR_Extend or as received from a TPM2_PCR_Event command
+	 */
+	tpmt_ha		digests[];		/* Digests[Count] */
+} tpml_digest_values;
+
+/*
+ * TCG_PCR_EVENT2 header
+ */
+typedef struct {
+	 /* The PCR Index to which this event was extended */
+	uint32_t		pcr_index;	/* PCRIndex */
+
+	/* Type of event */
+	uint32_t		event_type;	/* EventType */
+
+	/* Digests:
+	 * A counted list of tagged digests, which contain the digest of
+	 * the event data (or external data) for all active PCR banks
+	 */
+	tpml_digest_values	digests;	/* Digests */
+} event2_header_t;
+
+typedef struct event2_data {
+	/* The size of the event data */
+	uint32_t		event_size;	/* EventSize */
+
+	/* The data of the event */
+	uint8_t			event[];	/* Event[EventSize] */
+} event2_data_t;
+
+/*
+ * Startup Locality Event
+ * Ref. TCG PC Client Platform Firmware Profile 9.4.5.3
+ */
+typedef struct {
+	/*
+	 * The NUL-terminated ASCII string "StartupLocality" SHALL be
+	 * set to {0x53 0x74 0x61 0x72 0x74 0x75 0x70 0x4C 0x6F 0x63
+	 * 0x61 0x6C 0x69 0x74 0x79 0x00}
+	 */
+	uint8_t		signature[16];
+
+	/* The Locality Indicator which sent the TPM2_Startup command */
+	uint8_t		startup_locality;
+} startup_locality_event_t;
+
+#pragma pack(pop)
+
+#endif /* TCG_H */
diff --git a/include/lib/event_log/event_handoff.h b/include/lib/event_log/event_handoff.h
new file mode 100644
index 0000000..f8c8716
--- /dev/null
+++ b/include/lib/event_log/event_handoff.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+
+#ifndef HANDOFF_H
+#define HANDOFF_H
+
+#include <stdint.h>
+
+#include <transfer_list.h>
+
+/**
+ * Initializes or extends the TPM event log in the transfer list.
+ *
+ * If an event log entry exists, attempts to resize it. Otherwise, adds a new entry.
+ * Copies old data if needed. Updates free to reflect available space.
+ *
+ * @param tl         Pointer to the transfer list header.
+ * @param req_size   Requested size (bytes)
+ * @param free       Available size (bytes)
+ * @return           Pointer to writable space in the log, or NULL on failure.
+ */
+uint8_t *transfer_list_event_log_extend(struct transfer_list_header *tl,
+					size_t req_size, size_t *free);
+
+/**
+ * Finalizes the event log after writing is complete.
+ *
+ * Resizes the event log to match actual data written, updates checksum,
+ * and flushes cache for the next stage.
+ *
+ * @param tl         Pointer to the transfer list header.
+ * @param cursor     End offset of written log data.
+ * @return           Pointer to finalized log data (past reserved bytes), or NULL.
+ */
+uint8_t *transfer_list_event_log_finish(struct transfer_list_header *tl,
+					uintptr_t cursor);
+
+#define EVENT_LOG_RESERVED_BYTES U(4)
+
+#endif /* HANDOFF_H */
diff --git a/include/lib/event_log/event_log.h b/include/lib/event_log/event_log.h
new file mode 100644
index 0000000..964f80a
--- /dev/null
+++ b/include/lib/event_log/event_log.h
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2020-2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef EVENT_LOG_H
+#define EVENT_LOG_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <lib/utils_def.h>
+#include <drivers/auth/crypto_mod.h>
+#include "event_handoff.h"
+#include "tcg.h"
+
+/*
+ * Set Event Log debug level to one of:
+ *
+ * LOG_LEVEL_ERROR
+ * LOG_LEVEL_INFO
+ * LOG_LEVEL_WARNING
+ * LOG_LEVEL_VERBOSE
+ */
+#if EVENT_LOG_LEVEL   == LOG_LEVEL_ERROR
+#define	LOG_EVENT	ERROR
+#elif EVENT_LOG_LEVEL == LOG_LEVEL_NOTICE
+#define	LOG_EVENT	NOTICE
+#elif EVENT_LOG_LEVEL == LOG_LEVEL_WARNING
+#define	LOG_EVENT	WARN
+#elif EVENT_LOG_LEVEL == LOG_LEVEL_INFO
+#define	LOG_EVENT	INFO
+#elif EVENT_LOG_LEVEL == LOG_LEVEL_VERBOSE
+#define	LOG_EVENT	VERBOSE
+#else
+#define LOG_EVENT printf
+#endif
+
+/* Number of hashing algorithms supported */
+#define HASH_ALG_COUNT		1U
+
+#define EVLOG_INVALID_ID	UINT32_MAX
+
+#define MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
+
+typedef struct {
+	unsigned int id;
+	const char *name;
+	unsigned int pcr;
+} event_log_metadata_t;
+
+#define	ID_EVENT_SIZE	(sizeof(id_event_headers_t) + \
+			(sizeof(id_event_algorithm_size_t) * HASH_ALG_COUNT) + \
+			sizeof(id_event_struct_data_t))
+
+#define	LOC_EVENT_SIZE	(sizeof(event2_header_t) + \
+			sizeof(tpmt_ha) + TCG_DIGEST_SIZE + \
+			sizeof(event2_data_t) + \
+			sizeof(startup_locality_event_t))
+
+#define	LOG_MIN_SIZE	(ID_EVENT_SIZE + LOC_EVENT_SIZE)
+
+#define EVENT2_HDR_SIZE	(sizeof(event2_header_t) + \
+			sizeof(tpmt_ha) + TCG_DIGEST_SIZE + \
+			sizeof(event2_data_t))
+
+/* Functions' declarations */
+
+/**
+ * Initialize the Event Log buffer.
+ *
+ * Sets global pointers to manage the Event Log memory region,
+ * allowing subsequent log operations to write into the buffer.
+ *
+ * @param[in] event_log_start  Pointer to the start of the Event Log buffer.
+ * @param[in] event_log_finish Pointer to the end of the buffer
+ *                             (i.e., one byte past the last valid address).
+ *
+ * @return 0 on success, or -EINVAL if the input range is invalid.
+ */
+int event_log_buf_init(uint8_t *event_log_start, uint8_t *event_log_finish);
+
+/**
+ * Dump the contents of the Event Log.
+ *
+ * Outputs the raw contents of the Event Log buffer, typically
+ * for debugging or audit purposes.
+ *
+ * @param[in] log_addr Pointer to the start of the Event Log buffer.
+ * @param[in] log_size Size of the Event Log buffer in bytes.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+int event_log_dump(uint8_t *log_addr, size_t log_size);
+
+/**
+ * Initialize the Event Log subsystem.
+ *
+ * Wrapper around `event_log_buf_init()` to configure the memory range
+ * for the Event Log buffer.
+ *
+ * @param[in] event_log_start  Pointer to the start of the Event Log buffer.
+ * @param[in] event_log_finish Pointer to the end of the buffer
+ *                             (i.e., one byte past the last valid address).
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+int event_log_init(uint8_t *event_log_start, uint8_t *event_log_finish);
+
+/**
+ * Measure input data and log its hash to the Event Log.
+ *
+ * Computes the cryptographic hash of the specified data and records it
+ * in the Event Log as a TCG_PCR_EVENT2 structure using event type EV_POST_CODE.
+ * Useful for firmware or image attestation.
+ *
+ * @param[in] data_base     Pointer to the base of the data to be measured.
+ * @param[in] data_size     Size of the data in bytes.
+ * @param[in] data_id       Identifier used to match against metadata.
+ * @param[in] metadata_ptr  Pointer to an array of event_log_metadata_t.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+int event_log_measure_and_record(uintptr_t data_base, uint32_t data_size,
+				 uint32_t data_id,
+				 const event_log_metadata_t *metadata_ptr);
+
+/**
+ * Measure the input data and return its hash.
+ *
+ * Computes the cryptographic hash of the specified memory region using
+ * the default hashing algorithm configured in the Event Log subsystem.
+ *
+ * @param[in]  data_base  Pointer to the base of the data to be measured.
+ * @param[in]  data_size  Size of the data in bytes.
+ * @param[out] hash_data  Buffer to hold the resulting hash output
+ *                        (must be at least CRYPTO_MD_MAX_SIZE bytes).
+ *
+ * @return 0 on success, or an error code on failure.
+ */
+int event_log_measure(uintptr_t data_base, uint32_t data_size,
+		      unsigned char hash_data[CRYPTO_MD_MAX_SIZE]);
+
+/**
+ * Record a measurement event in the Event Log.
+ *
+ * Writes a TCG_PCR_EVENT2 structure to the Event Log using the
+ * provided hash and metadata. This function assumes the buffer
+ * has enough space and that `event_log_buf_init()` has been called.
+ *
+ * @param[in] hash         Pointer to the digest (TCG_DIGEST_SIZE bytes).
+ * @param[in] event_type   Type of the event, as defined in tcg.h.
+ * @param[in] metadata_ptr Pointer to an event_log_metadata_t structure
+ *                         providing event-specific context (e.g., PCR index, name).
+ *
+ * @return 0 on success, or -ENOMEM if the buffer has insufficient space.
+ */
+int event_log_record(const uint8_t *hash, uint32_t event_type,
+		     const event_log_metadata_t *metadata_ptr);
+
+/**
+ * Initialize the Event Log with mandatory header events.
+ *
+ * Writes the Specification ID (SpecID) and Startup Locality events
+ * as required by the TCG PC Client Platform Firmware Profile.
+ * These must be the first entries in the Event Log.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+int event_log_write_header(void);
+
+/**
+ * Write the SpecID event to the Event Log.
+ *
+ * Records the TCG_EfiSpecIDEventStruct to declare the structure
+ * and supported algorithms of the Event Log format.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+int event_log_write_specid_event(void);
+
+/**
+ * Get the current size of the Event Log.
+ *
+ * Calculates how many bytes of the Event Log buffer have been used,
+ * based on the current log pointer and the start of the buffer.
+ *
+ * @param[in] event_log_start Pointer to the start of the Event Log buffer.
+ *
+ * @return The number of bytes currently used in the Event Log.
+ */
+size_t event_log_get_cur_size(uint8_t *event_log_start);
+
+#endif /* EVENT_LOG_H */
diff --git a/include/lib/event_log/tcg.h b/include/lib/event_log/tcg.h
new file mode 100644
index 0000000..653f9c2
--- /dev/null
+++ b/include/lib/event_log/tcg.h
@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2020-2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TCG_H
+#define TCG_H
+
+#include <stdint.h>
+#include <common/sha_common_macros.h>
+
+#define TCG_ID_EVENT_SIGNATURE_03	"Spec ID Event03"
+#define TCG_STARTUP_LOCALITY_SIGNATURE	"StartupLocality"
+
+#define TCG_SPEC_VERSION_MAJOR_TPM2   2
+#define TCG_SPEC_VERSION_MINOR_TPM2   0
+#define TCG_SPEC_ERRATA_TPM2          2
+
+/*
+ * Event types
+ * Ref. Table 9 Events
+ * TCG PC Client Platform Firmware Profile Specification.
+ */
+#define EV_PREBOOT_CERT				U(0x00000000)
+#define EV_POST_CODE				U(0x00000001)
+#define	EV_UNUSED				U(0x00000002)
+#define EV_NO_ACTION				U(0x00000003)
+#define EV_SEPARATOR				U(0x00000004)
+#define EV_ACTION				U(0x00000005)
+#define	EV_EVENT_TAG				U(0x00000006)
+#define EV_S_CRTM_CONTENTS			U(0x00000007)
+#define EV_S_CRTM_VERSION			U(0x00000008)
+#define EV_CPU_MICROCODE			U(0x00000009)
+#define EV_PLATFORM_CONFIG_FLAGS		U(0x0000000A)
+#define EV_TABLE_OF_DEVICES			U(0x0000000B)
+#define EV_COMPACT_HASH				U(0x0000000C)
+#define	EV_IPL					U(0x0000000D)
+#define	EV_IPL_PARTITION_DATA			U(0x0000000E)
+#define EV_NONHOST_CODE				U(0x0000000F)
+#define EV_NONHOST_CONFIG			U(0x00000010)
+#define EV_NONHOST_INFO				U(0x00000011)
+#define EV_OMIT_BOOT_DEVICE_EVENTS		U(0x00000012)
+#define	EV_EFI_EVENT_BASE			U(0x80000000)
+#define	EV_EFI_VARIABLE_DRIVER_CONFIG		U(0x80000001)
+#define EV_EFI_VARIABLE_BOOT			U(0x80000002)
+#define	EV_EFI_BOOT_SERVICES_APPLICATION	U(0x80000003)
+#define	EV_EFI_BOOT_SERVICES_DRIVER		U(0x80000004)
+#define	EV_EFI_RUNTIME_SERVICES_DRIVER		U(0x80000005)
+#define	EV_EFI_GPT_EVENT			U(0x80000006)
+#define	EV_EFI_ACTION				U(0x80000007)
+#define	EV_EFI_PLATFORM_FIRMWARE_BLOB		U(0x80000008)
+#define	EV_EFI_HANDOFF_TABLES			U(0x80000009)
+#define	EV_EFI_HCRTM_EVENT			U(0x80000010)
+#define	EV_EFI_VARIABLE_AUTHORITY		U(0x800000E0)
+
+/*
+ * TPM_ALG_ID constants.
+ * Ref. Table 9 - Definition of (UINT16) TPM_ALG_ID Constants
+ * Trusted Platform Module Library. Part 2: Structures
+ */
+#define TPM_ALG_SHA256		0x000B
+#define TPM_ALG_SHA384		0x000C
+#define TPM_ALG_SHA512		0x000D
+
+/* TCG Platform Type */
+#define PLATFORM_CLASS_CLIENT   0
+#define PLATFORM_CLASS_SERVER   1
+
+enum {
+	/*
+	 * SRTM, BIOS, Host Platform Extensions, Embedded
+	 * Option ROMs and PI Drivers
+	 */
+	PCR_0 = 0,
+	/* Host Platform Configuration */
+	PCR_1,
+	/* UEFI driver and application Code */
+	PCR_2,
+	/* UEFI driver and application Configuration and Data */
+	PCR_3,
+	/* UEFI Boot Manager Code (usually the MBR) and Boot Attempts */
+	PCR_4,
+	/*
+	 * Boot Manager Code Configuration and Data (for use
+	 * by the Boot Manager Code) and GPT/Partition Table
+	 */
+	PCR_5,
+	/* Host Platform Manufacturer Specific */
+	PCR_6,
+	/* Secure Boot Policy */
+	PCR_7,
+	/* 8-15: Defined for use by the Static OS */
+	PCR_8,
+	/* Debug */
+	PCR_16 = 16,
+
+	/* D-CRTM-measurements by DRTM implementation */
+	PCR_17 = 17,
+	/* DCE measurements by DRTM implementation */
+	PCR_18 = 18
+};
+
+#pragma pack(push, 1)
+
+/*
+ * PCR Event Header
+ * TCG EFI Protocol Specification
+ * 5.3 Event Log Header
+ */
+typedef struct {
+	/* PCRIndex:
+	 * The PCR Index to which this event is extended
+	 */
+	uint32_t	pcr_index;
+
+	/* EventType:
+	 * SHALL be an EV_NO_ACTION event
+	 */
+	uint32_t	event_type;
+
+	/* SHALL be 20 Bytes of 0x00 */
+	uint8_t		digest[SHA1_DIGEST_SIZE];
+
+	/* The size of the event */
+	uint32_t	event_size;
+
+	/* SHALL be a TCG_EfiSpecIdEvent */
+	uint8_t		event[];	/* [event_data_size] */
+} tcg_pcr_event_t;
+
+/*
+ * Log Header Entry Data
+ * Ref. Table 14 TCG_EfiSpecIdEventAlgorithmSize
+ * TCG PC Client Platform Firmware Profile 9.4.5.1
+ */
+typedef struct {
+	/* Algorithm ID (hashAlg) of the Hash used by BIOS */
+	uint16_t	algorithm_id;
+
+	/* The size of the digest produced by the implemented Hash algorithm */
+	uint16_t	digest_size;
+} id_event_algorithm_size_t;
+
+/*
+ * TCG_EfiSpecIdEvent structure
+ * Ref. Table 15 TCG_EfiSpecIdEvent
+ * TCG PC Client Platform Firmware Profile 9.4.5.1
+ */
+typedef struct {
+	/*
+	 * The NUL-terminated ASCII string "Spec ID Event03".
+	 * SHALL be set to {0x53, 0x70, 0x65, 0x63, 0x20, 0x49, 0x44,
+	 * 0x20, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x30, 0x33, 0x00}.
+	 */
+	uint8_t		signature[16];
+
+	/*
+	 * The value for the Platform Class.
+	 * The enumeration is defined in the TCG ACPI Specification Client
+	 * Common Header.
+	 */
+	uint32_t	platform_class;
+
+	/*
+	 * The PC Client Platform Profile Specification minor version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x00.
+	 */
+	uint8_t		spec_version_minor;
+
+	/*
+	 * The PC Client Platform Profile Specification major version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x02.
+	 */
+	uint8_t		spec_version_major;
+
+	/*
+	 * The PC Client Platform Profile Specification errata version number
+	 * this BIOS supports.
+	 * Any BIOS supporting this version (2.0) MUST set this value to 0x02.
+	 */
+	uint8_t		spec_errata;
+
+	/*
+	 * Specifies the size of the UINTN fields used in various data
+	 * structures used in this specification.
+	 * 0x01 indicates UINT32 and 0x02 indicates UINT64.
+	 */
+	uint8_t		uintn_size;
+
+	/*
+	 * The number of Hash algorithms in the digestSizes field.
+	 * This field MUST be set to a value of 0x01 or greater.
+	 */
+	uint32_t	number_of_algorithms;
+
+	/*
+	 * Each TCG_EfiSpecIdEventAlgorithmSize SHALL contain an algorithmId
+	 * and digestSize for each hash algorithm used in the TCG_PCR_EVENT2
+	 * structure, the first of which is a Hash algorithmID and the second
+	 * is the size of the respective digest.
+	 */
+	id_event_algorithm_size_t    digest_size[]; /* number_of_algorithms */
+} id_event_struct_header_t;
+
+typedef struct {
+	/*
+	 * Size in bytes of the VendorInfo field.
+	 * Maximum value MUST be FFh bytes.
+	 */
+	uint8_t		vendor_info_size;
+
+	/*
+	 * Provided for use by Platform Firmware implementer. The value might
+	 * be used, for example, to provide more detailed information about the
+	 * specific BIOS such as BIOS revision numbers, etc. The values within
+	 * this field are not standardized and are implementer-specific.
+	 * Platform-specific or -unique information MUST NOT be provided in
+	 * this field.
+	 *
+	 */
+	uint8_t		vendor_info[];	/* [vendorInfoSize] */
+} id_event_struct_data_t;
+
+typedef struct {
+	id_event_struct_header_t	struct_header;
+	id_event_struct_data_t		struct_data;
+} id_event_struct_t;
+
+typedef struct {
+	tcg_pcr_event_t			header;
+	id_event_struct_header_t	struct_header;
+} id_event_headers_t;
+
+/* TPMT_HA Structure */
+typedef struct {
+	/* Selector of the hash contained in the digest that implies
+	 * the size of the digest
+	 */
+	uint16_t	algorithm_id;	/* AlgorithmId */
+
+	/* Digest, depends on AlgorithmId */
+	uint8_t		digest[];	/* Digest[] */
+} tpmt_ha;
+
+/*
+ * TPML_DIGEST_VALUES Structure
+ */
+typedef struct {
+	/* The number of digests in the list */
+	uint32_t	count;			/* Count */
+
+	/* The list of tagged digests, as sent to the TPM as part of a
+	 * TPM2_PCR_Extend or as received from a TPM2_PCR_Event command
+	 */
+	tpmt_ha		digests[];		/* Digests[Count] */
+} tpml_digest_values;
+
+/*
+ * TCG_PCR_EVENT2 header
+ */
+typedef struct {
+	 /* The PCR Index to which this event was extended */
+	uint32_t		pcr_index;	/* PCRIndex */
+
+	/* Type of event */
+	uint32_t		event_type;	/* EventType */
+
+	/* Digests:
+	 * A counted list of tagged digests, which contain the digest of
+	 * the event data (or external data) for all active PCR banks
+	 */
+	tpml_digest_values	digests;	/* Digests */
+} event2_header_t;
+
+typedef struct event2_data {
+	/* The size of the event data */
+	uint32_t		event_size;	/* EventSize */
+
+	/* The data of the event */
+	uint8_t			event[];	/* Event[EventSize] */
+} event2_data_t;
+
+/*
+ * Startup Locality Event
+ * Ref. TCG PC Client Platform Firmware Profile 9.4.5.3
+ */
+typedef struct {
+	/*
+	 * The NUL-terminated ASCII string "StartupLocality" SHALL be
+	 * set to {0x53 0x74 0x61 0x72 0x74 0x75 0x70 0x4C 0x6F 0x63
+	 * 0x61 0x6C 0x69 0x74 0x79 0x00}
+	 */
+	uint8_t		signature[16];
+
+	/* The Locality Indicator which sent the TPM2_Startup command */
+	uint8_t		startup_locality;
+} startup_locality_event_t;
+
+#pragma pack(pop)
+
+#endif /* TCG_H */
diff --git a/lib/event_log/event_handoff.c b/lib/event_log/event_handoff.c
new file mode 100644
index 0000000..238ea27
--- /dev/null
+++ b/lib/event_log/event_handoff.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+
+#include <common/debug.h>
+#include <drivers/measured_boot/event_log/event_handoff.h>
+
+#include <platform_def.h>
+
+static uint8_t *get_log_ptr(struct transfer_list_entry *te, size_t offset)
+{
+	uint8_t *base_ptr = transfer_list_entry_data(te);
+
+	if (base_ptr == NULL) {
+		return NULL;
+	}
+
+	return base_ptr + offset;
+}
+
+uint8_t *transfer_list_event_log_extend(struct transfer_list_header *tl,
+					size_t req_size, size_t *free)
+{
+	struct transfer_list_entry *existing_entry;
+	struct transfer_list_entry *new_entry;
+	uint8_t *old_data;
+	size_t existing_offset;
+	size_t old_size;
+
+	if (tl == NULL || free == NULL || req_size == 0) {
+		ERROR("Invalid arguments to event log extend.\n");
+		return NULL;
+	}
+
+	existing_entry = transfer_list_find(tl, TL_TAG_TPM_EVLOG);
+	existing_offset = EVENT_LOG_RESERVED_BYTES;
+
+	if (existing_entry != NULL) {
+		existing_offset = existing_entry->data_size;
+
+		if (transfer_list_set_data_size(tl, existing_entry,
+						req_size + existing_offset)) {
+			VERBOSE("TPM event log entry resized: new space %zu bytes at offset %zu\n",
+				req_size, existing_offset);
+
+			*free = existing_entry->data_size - existing_offset;
+
+			return get_log_ptr(existing_entry, existing_offset);
+		}
+	}
+
+	/* Add new entry (resize failed or no existing entry) */
+	new_entry = transfer_list_add(tl, TL_TAG_TPM_EVLOG,
+				      req_size + existing_offset, NULL);
+
+	if (new_entry == NULL) {
+		ERROR("Failed to add TPM event log entry to transfer list.\n");
+		return NULL;
+	}
+
+	VERBOSE("New TPM event log entry added at %p\n",
+		transfer_list_entry_data(new_entry));
+
+	if (existing_entry != NULL) {
+		old_data = transfer_list_entry_data(existing_entry);
+		old_size = existing_offset;
+
+		VERBOSE("Copying existing event log (%zu bytes) to new entry at %p\n",
+			old_size, transfer_list_entry_data(new_entry));
+
+		memmove(transfer_list_entry_data(new_entry), old_data,
+			old_size);
+
+		transfer_list_rem(tl, existing_entry);
+	}
+
+	*free = new_entry->data_size - existing_offset;
+
+	return get_log_ptr(new_entry, existing_offset);
+}
+
+uint8_t *transfer_list_event_log_finish(struct transfer_list_header *tl,
+					uintptr_t cursor)
+{
+	uintptr_t entry_data_base;
+	size_t final_log_size;
+	struct transfer_list_entry *entry;
+
+	entry = transfer_list_find(tl, TL_TAG_TPM_EVLOG);
+	entry_data_base = (uintptr_t)transfer_list_entry_data(entry);
+
+	if (cursor < entry_data_base ||
+	    cursor >= entry_data_base + entry->data_size) {
+		ERROR("Invalid cursor: outside event log bounds.\n");
+		return NULL;
+	}
+
+	final_log_size = cursor - entry_data_base;
+
+	if (!transfer_list_set_data_size(tl, entry, final_log_size)) {
+		ERROR("Unable to resize event log TE.\n");
+		return NULL;
+	}
+
+	transfer_list_update_checksum(tl);
+
+	VERBOSE("TPM event log finalized: trimmed to %zu bytes",
+		final_log_size - EVENT_LOG_RESERVED_BYTES);
+
+	/* Ensure changes are visible to the next stage. */
+	flush_dcache_range((uintptr_t)tl, tl->size);
+
+	return get_log_ptr(entry, EVENT_LOG_RESERVED_BYTES);
+}
diff --git a/lib/event_log/event_log.c b/lib/event_log/event_log.c
new file mode 100644
index 0000000..761ff29
--- /dev/null
+++ b/lib/event_log/event_log.c
@@ -0,0 +1,302 @@
+/*
+ * Copyright (c) 2020-2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "crypto_mod.h"
+#include "event_log.h"
+
+#if TPM_ALG_ID == TPM_ALG_SHA512
+#define	CRYPTO_MD_ID	CRYPTO_MD_SHA512
+#elif TPM_ALG_ID == TPM_ALG_SHA384
+#define	CRYPTO_MD_ID	CRYPTO_MD_SHA384
+#elif TPM_ALG_ID == TPM_ALG_SHA256
+#define	CRYPTO_MD_ID	CRYPTO_MD_SHA256
+#else
+#  error Invalid TPM algorithm.
+#endif /* TPM_ALG_ID */
+
+/* Running Event Log Pointer */
+static uint8_t *log_ptr;
+
+/* Pointer to the first byte past end of the Event Log buffer */
+static uintptr_t log_end;
+
+/* TCG_EfiSpecIdEvent */
+static const id_event_headers_t id_event_header = {
+	.header = {
+		.pcr_index = PCR_0,
+		.event_type = EV_NO_ACTION,
+		.digest = {0},
+		.event_size = (uint32_t)(sizeof(id_event_struct_t) +
+				(sizeof(id_event_algorithm_size_t) *
+				HASH_ALG_COUNT))
+	},
+
+	.struct_header = {
+		.signature = TCG_ID_EVENT_SIGNATURE_03,
+		.platform_class = PLATFORM_CLASS_CLIENT,
+		.spec_version_minor = TCG_SPEC_VERSION_MINOR_TPM2,
+		.spec_version_major = TCG_SPEC_VERSION_MAJOR_TPM2,
+		.spec_errata = TCG_SPEC_ERRATA_TPM2,
+		.uintn_size = (uint8_t)(sizeof(unsigned int) /
+					sizeof(uint32_t)),
+		.number_of_algorithms = HASH_ALG_COUNT
+	}
+};
+
+static const event2_header_t locality_event_header = {
+	/*
+	 * All EV_NO_ACTION events SHALL set
+	 * TCG_PCR_EVENT2.pcrIndex = 0, unless otherwise specified
+	 */
+	.pcr_index = PCR_0,
+
+	/*
+	 * All EV_NO_ACTION events SHALL set
+	 * TCG_PCR_EVENT2.eventType = 03h
+	 */
+	.event_type = EV_NO_ACTION,
+
+	/*
+	 * All EV_NO_ACTION events SHALL set TCG_PCR_EVENT2.digests to all
+	 * 0x00's for each allocated Hash algorithm
+	 */
+	.digests = {
+		.count = HASH_ALG_COUNT
+	}
+};
+
+int event_log_record(const uint8_t *hash, uint32_t event_type,
+		      const event_log_metadata_t *metadata_ptr)
+{
+	void *ptr = log_ptr;
+	uint32_t name_len = 0U;
+
+	/* event_log_buf_init() must have been called prior to this. */
+	if (hash == NULL || metadata_ptr == NULL || log_ptr == NULL) {
+		return -EINVAL;
+	}
+
+	if (metadata_ptr->name != NULL) {
+		name_len = (uint32_t)strlen(metadata_ptr->name) + 1U;
+	}
+
+	/* Check for space in Event Log buffer */
+	if (((uintptr_t)ptr + (uint32_t)EVENT2_HDR_SIZE + name_len) > log_end) {
+		return -ENOMEM;
+	}
+
+	/*
+	 * As per TCG specifications, firmware components that are measured
+	 * into PCR[0] must be logged in the event log using the event type
+	 * EV_POST_CODE.
+	 */
+	/* TCG_PCR_EVENT2.PCRIndex */
+	((event2_header_t *)ptr)->pcr_index = metadata_ptr->pcr;
+
+	/* TCG_PCR_EVENT2.EventType */
+	((event2_header_t *)ptr)->event_type = event_type;
+
+	/* TCG_PCR_EVENT2.Digests.Count */
+	ptr = (uint8_t *)ptr + offsetof(event2_header_t, digests);
+	((tpml_digest_values *)ptr)->count = HASH_ALG_COUNT;
+
+	/* TCG_PCR_EVENT2.Digests[] */
+	ptr = (uint8_t *)((uintptr_t)ptr +
+			offsetof(tpml_digest_values, digests));
+
+	/* TCG_PCR_EVENT2.Digests[].AlgorithmId */
+	((tpmt_ha *)ptr)->algorithm_id = TPM_ALG_ID;
+
+	/* TCG_PCR_EVENT2.Digests[].Digest[] */
+	ptr = (uint8_t *)((uintptr_t)ptr + offsetof(tpmt_ha, digest));
+
+	/* Copy digest */
+	(void)memcpy(ptr, (const void *)hash, TCG_DIGEST_SIZE);
+
+	/* TCG_PCR_EVENT2.EventSize */
+	ptr = (uint8_t *)((uintptr_t)ptr + TCG_DIGEST_SIZE);
+	((event2_data_t *)ptr)->event_size = name_len;
+
+	/* Copy event data to TCG_PCR_EVENT2.Event */
+	if (metadata_ptr->name != NULL) {
+		(void)memcpy((void *)(((event2_data_t *)ptr)->event),
+				(const void *)metadata_ptr->name, name_len);
+	}
+
+	/* End of event data */
+	log_ptr = (uint8_t *)((uintptr_t)ptr +
+			offsetof(event2_data_t, event) + name_len);
+
+	return 0;
+}
+
+int event_log_buf_init(uint8_t *event_log_start, uint8_t *event_log_finish)
+{
+	if (event_log_start == NULL || event_log_finish == NULL ||
+	    event_log_start > event_log_finish) {
+		return -EINVAL;
+	}
+
+	log_ptr = event_log_start;
+	log_end = (uintptr_t)event_log_finish;
+
+	return 0;
+}
+
+int event_log_init(uint8_t *event_log_start, uint8_t *event_log_finish)
+{
+	return event_log_buf_init(event_log_start, event_log_finish);
+}
+
+int event_log_write_specid_event(void)
+{
+	void *ptr;
+
+	/* event_log_buf_init() must have been called prior to this. */
+	if (log_ptr == NULL) {
+		return -EFAULT;
+	}
+
+	if (((uintptr_t)log_ptr + ID_EVENT_SIZE) > log_end) {
+		return -ENOMEM;
+	}
+
+	ptr = log_ptr;
+
+	/*
+	 * Add Specification ID Event first
+	 *
+	 * Copy TCG_EfiSpecIDEventStruct structure header
+	 */
+	(void)memcpy(ptr, (const void *)&id_event_header,
+			sizeof(id_event_header));
+	ptr = (uint8_t *)((uintptr_t)ptr + sizeof(id_event_header));
+
+	/* TCG_EfiSpecIdEventAlgorithmSize structure */
+	((id_event_algorithm_size_t *)ptr)->algorithm_id = TPM_ALG_ID;
+	((id_event_algorithm_size_t *)ptr)->digest_size = TCG_DIGEST_SIZE;
+	ptr = (uint8_t *)((uintptr_t)ptr + sizeof(id_event_algorithm_size_t));
+
+	/*
+	 * TCG_EfiSpecIDEventStruct.vendorInfoSize
+	 * No vendor data
+	 */
+	((id_event_struct_data_t *)ptr)->vendor_info_size = 0;
+	log_ptr = (uint8_t *)((uintptr_t)ptr +
+			offsetof(id_event_struct_data_t, vendor_info));
+
+	return 0;
+}
+
+int event_log_write_header(void)
+{
+	const char locality_signature[] = TCG_STARTUP_LOCALITY_SIGNATURE;
+	void *ptr;
+	int rc;
+
+	rc = event_log_write_specid_event();
+	if (rc < 0) {
+		return rc;
+	}
+
+	if (((uintptr_t)log_ptr + LOC_EVENT_SIZE) > log_end) {
+		return -ENOMEM;
+	}
+
+	ptr = log_ptr;
+
+	/*
+	 * The Startup Locality event should be placed in the log before
+	 * any event which extends PCR[0].
+	 *
+	 * Ref. TCG PC Client Platform Firmware Profile 9.4.5.3
+	 */
+
+	/* Copy Startup Locality Event Header */
+	(void)memcpy(ptr, (const void *)&locality_event_header,
+			sizeof(locality_event_header));
+	ptr = (uint8_t *)((uintptr_t)ptr + sizeof(locality_event_header));
+
+	/* TCG_PCR_EVENT2.Digests[].AlgorithmId */
+	((tpmt_ha *)ptr)->algorithm_id = TPM_ALG_ID;
+
+	/* TCG_PCR_EVENT2.Digests[].Digest[] */
+	(void)memset(&((tpmt_ha *)ptr)->digest, 0, TCG_DIGEST_SIZE);
+	ptr = (uint8_t *)((uintptr_t)ptr +
+			offsetof(tpmt_ha, digest) + TCG_DIGEST_SIZE);
+
+	/* TCG_PCR_EVENT2.EventSize */
+	((event2_data_t *)ptr)->event_size =
+		(uint32_t)sizeof(startup_locality_event_t);
+	ptr = (uint8_t *)((uintptr_t)ptr + offsetof(event2_data_t, event));
+
+	/* TCG_EfiStartupLocalityEvent.Signature */
+	(void)memcpy(ptr, (const void *)locality_signature,
+		sizeof(TCG_STARTUP_LOCALITY_SIGNATURE));
+
+	/*
+	 * TCG_EfiStartupLocalityEvent.StartupLocality = 0:
+	 * the platform's boot firmware
+	 */
+	((startup_locality_event_t *)ptr)->startup_locality = 0U;
+	log_ptr = (uint8_t *)((uintptr_t)ptr + sizeof(startup_locality_event_t));
+
+	return 0;
+}
+
+int event_log_measure(uintptr_t data_base, uint32_t data_size,
+		      unsigned char hash_data[CRYPTO_MD_MAX_SIZE])
+{
+	/* Calculate hash */
+	return crypto_mod_calc_hash(CRYPTO_MD_ID,
+				    (void *)data_base, data_size, hash_data);
+}
+
+int event_log_measure_and_record(uintptr_t data_base, uint32_t data_size,
+				 uint32_t data_id,
+				 const event_log_metadata_t *metadata_ptr)
+{
+	unsigned char hash_data[CRYPTO_MD_MAX_SIZE];
+	int rc;
+
+	if (metadata_ptr == NULL) {
+		return -EINVAL;
+	}
+
+	/* Get the metadata associated with this image. */
+	while (metadata_ptr->id != data_id) {
+		if (metadata_ptr->id == EVLOG_INVALID_ID) {
+			return -EINVAL;
+		}
+
+		metadata_ptr++;
+	}
+
+	/* Measure the payload with algorithm selected by EventLog driver */
+	rc = event_log_measure(data_base, data_size, hash_data);
+	if (rc != 0) {
+		return rc;
+	}
+
+	rc = event_log_record(hash_data, EV_POST_CODE, metadata_ptr);
+	if (rc != 0) {
+		return rc;
+	}
+
+	return 0;
+}
+
+size_t event_log_get_cur_size(uint8_t *event_log_start)
+{
+	assert(event_log_start != NULL);
+	assert(log_ptr >= event_log_start);
+
+	return (size_t)((uintptr_t)log_ptr - (uintptr_t)event_log_start);
+}
diff --git a/lib/event_log/event_log.mk b/lib/event_log/event_log.mk
index 5e41158..df55c62 100644
--- a/lib/event_log/event_log.mk
+++ b/lib/event_log/event_log.mk
@@ -4,9 +4,51 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-# Path to Event Log Library (LibEventLog)
-LIBEVLOG_PATH		?=	contrib/libeventlog
+# Path to library sources
+EVENT_LOG_SRC_DIR	:= lib/event_log/
 
-INCLUDES		+=	-I$(LIBEVLOG_PATH)/include
+# Default log level to dump the event log (LOG_LEVEL_INFO)
+EVENT_LOG_LEVEL		?= 40
 
-LIBEVLOG_SOURCES	+= ${LIBEVLOG_PATH}/src/event_print.c
+EVENT_LOG_SOURCES	:=	${EVENT_LOG_SRC_DIR}event_print.c
+
+INCLUDES		+=	-Iinclude/lib/event_log \
+				-Iinclude/drivers/auth
+
+ifdef CRYPTO_SUPPORT
+# Measured Boot hash algorithm.
+# SHA-256 (or stronger) is required for all devices that are TPM 2.0 compliant.
+ifdef TPM_HASH_ALG
+    $(warning "TPM_HASH_ALG is deprecated. Please use MBOOT_EL_HASH_ALG instead.")
+    MBOOT_EL_HASH_ALG		:=	${TPM_HASH_ALG}
+else
+    MBOOT_EL_HASH_ALG		:=	sha256
+endif
+
+ifeq (${MBOOT_EL_HASH_ALG}, sha512)
+    TPM_ALG_ID			:=	TPM_ALG_SHA512
+    TCG_DIGEST_SIZE		:=	64U
+else ifeq (${MBOOT_EL_HASH_ALG}, sha384)
+    TPM_ALG_ID			:=	TPM_ALG_SHA384
+    TCG_DIGEST_SIZE		:=	48U
+else
+    TPM_ALG_ID			:=	TPM_ALG_SHA256
+    TCG_DIGEST_SIZE		:=	32U
+endif #MBOOT_EL_HASH_ALG
+
+# Set definitions for event log library.
+$(eval $(call add_define,TFTF_DEFINES,TPM_ALG_ID))
+$(eval $(call add_define,TFTF_DEFINES,EVENT_LOG_LEVEL))
+$(eval $(call add_define,TFTF_DEFINES,TCG_DIGEST_SIZE))
+
+EVENT_LOG_SOURCES	:=	${EVENT_LOG_SRC_DIR}event_log.c
+
+INCLUDES		+=	-Iinclude/lib/event_log \
+				-Iinclude/drivers/auth
+
+ifeq (${TRANSFER_LIST}, 1)
+EVENT_LOG_SOURCES	+= ${EVENT_LOG_SRC_DIR}/event_handoff.c
+INCLUDES		+=	-Iinclude/lib
+endif
+
+endif
diff --git a/lib/event_log/event_print.c b/lib/event_log/event_print.c
new file mode 100644
index 0000000..234a694
--- /dev/null
+++ b/lib/event_log/event_print.c
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 2020-2025, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include "event_log.h"
+
+/**
+ * Print a TCG_EfiSpecIDEventStruct entry from the event log.
+ *
+ * This function extracts and prints a TCG_EfiSpecIDEventStruct
+ * entry from the event log for debugging or auditing purposes.
+ *
+ * @param[in,out] log_addr  Pointer to the current position in the Event Log.
+ *                          Updated to the next entry after processing.
+ * @param[in,out] log_size  Pointer to the remaining Event Log size.
+ *                          Updated to reflect the remaining bytes.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+static int event_log_print_id_event(uint8_t **log_addr, size_t *log_size)
+{
+	unsigned int i;
+	uint8_t info_size, *info_size_ptr;
+	void *ptr = *log_addr;
+	id_event_headers_t *event = (id_event_headers_t *)ptr;
+	id_event_algorithm_size_t *alg_ptr;
+	uint32_t event_size, number_of_algorithms;
+	size_t digest_len;
+	const uint8_t *end_ptr = (uint8_t *)((uintptr_t)*log_addr + *log_size);
+
+	if (*log_size < sizeof(id_event_headers_t)) {
+		return -EINVAL;
+	}
+
+	/* The fields of the event log header are defined to be PCRIndex of 0,
+	 * EventType of EV_NO_ACTION, Digest of 20 bytes of 0, and
+	 * Event content defined as TCG_EfiSpecIDEventStruct.
+	 */
+	LOG_EVENT("TCG_EfiSpecIDEvent:\n");
+	LOG_EVENT("  PCRIndex           : %u\n", event->header.pcr_index);
+	if (event->header.pcr_index != (uint32_t)PCR_0) {
+		return -EINVAL;
+	}
+
+	LOG_EVENT("  EventType          : %u\n", event->header.event_type);
+	if (event->header.event_type != EV_NO_ACTION) {
+		return -EINVAL;
+	}
+
+	LOG_EVENT("  Digest             :");
+	for (i = 0U; i < sizeof(event->header.digest); ++i) {
+		uint8_t val = event->header.digest[i];
+
+		(void)printf(" %02x", val);
+		if ((i & U(0xF)) == 0U) {
+			(void)printf("\n");
+			LOG_EVENT("\t\t      :");
+		}
+	}
+
+	if ((i & U(0xF)) != 0U) {
+		(void)printf("\n");
+	}
+
+	/* EventSize */
+	event_size = event->header.event_size;
+	LOG_EVENT("  EventSize          : %u\n", event_size);
+
+	LOG_EVENT("  Signature          : %s\n",
+			event->struct_header.signature);
+	LOG_EVENT("  PlatformClass      : %u\n",
+			event->struct_header.platform_class);
+	LOG_EVENT("  SpecVersion        : %u.%u.%u\n",
+			event->struct_header.spec_version_major,
+			event->struct_header.spec_version_minor,
+			event->struct_header.spec_errata);
+	LOG_EVENT("  UintnSize          : %u\n",
+			event->struct_header.uintn_size);
+
+	/* NumberOfAlgorithms */
+	number_of_algorithms = event->struct_header.number_of_algorithms;
+	LOG_EVENT("  NumberOfAlgorithms : %u\n", number_of_algorithms);
+
+	/* Address of DigestSizes[] */
+	alg_ptr = event->struct_header.digest_size;
+
+	/* Size of DigestSizes[] */
+	digest_len = number_of_algorithms * sizeof(id_event_algorithm_size_t);
+	if (digest_len > (uintptr_t)end_ptr - (uintptr_t)alg_ptr) {
+		return -EFAULT;
+	}
+
+	LOG_EVENT("  DigestSizes        :\n");
+	for (i = 0U; i < number_of_algorithms; ++i) {
+		LOG_EVENT("    #%u AlgorithmId   : SHA", i);
+		uint16_t algorithm_id = alg_ptr[i].algorithm_id;
+
+		switch (algorithm_id) {
+		case TPM_ALG_SHA256:
+			(void)printf("256\n");
+			break;
+		case TPM_ALG_SHA384:
+			(void)printf("384\n");
+			break;
+		case TPM_ALG_SHA512:
+			(void)printf("512\n");
+			break;
+		default:
+			(void)printf("?\n");
+			ERROR("Algorithm 0x%x not found\n", algorithm_id);
+			return -ENOENT;
+		}
+
+		LOG_EVENT("       DigestSize    : %u\n",
+					alg_ptr[i].digest_size);
+	}
+
+	/* Address of VendorInfoSize */
+	info_size_ptr = (uint8_t *)((uintptr_t)alg_ptr + digest_len);
+	if ((uintptr_t)info_size_ptr > (uintptr_t)end_ptr) {
+		return -EFAULT;
+	}
+
+	info_size = *info_size_ptr++;
+	LOG_EVENT("  VendorInfoSize     : %u\n", info_size);
+
+	/* Check VendorInfo end address */
+	if (((uintptr_t)info_size_ptr + info_size) > (uintptr_t)end_ptr) {
+		return -EFAULT;
+	}
+
+	/* Check EventSize */
+	if (event_size !=
+	    (sizeof(id_event_struct_t) + digest_len + info_size)) {
+		return -EFAULT;
+	}
+
+	if (info_size != 0U) {
+		LOG_EVENT("  VendorInfo         :");
+		for (i = 0U; i < info_size; ++i) {
+			(void)printf(" %02x", *info_size_ptr++);
+		}
+		(void)printf("\n");
+	}
+
+	*log_size -= (uintptr_t)info_size_ptr - (uintptr_t)*log_addr;
+	*log_addr = info_size_ptr;
+
+	return 0;
+}
+
+/**
+ * Print a TCG_PCR_EVENT2 entry from the event log.
+ *
+ * This function extracts and prints a TCG_PCR_EVENT2 structure
+ * from the event log for debugging or auditing purposes.
+ *
+ * @param[in,out] log_addr  Pointer to the current position in the Event Log.
+ *                          Updated to the next entry after processing.
+ * @param[in,out] log_size  Pointer to the remaining Event Log size.
+ *                          Updated to reflect the remaining bytes.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ */
+static int event_log_print_pcr_event2(uint8_t **log_addr, size_t *log_size)
+{
+	uint32_t event_size, count;
+	size_t sha_size, digests_size = 0U;
+	void *ptr = *log_addr;
+	const uint8_t *end_ptr = (uint8_t *)((uintptr_t)*log_addr + *log_size);
+
+	if (*log_size < sizeof(event2_header_t)) {
+		return -EINVAL;
+	}
+
+	LOG_EVENT("PCR_Event2:\n");
+	LOG_EVENT("  PCRIndex           : %u\n",
+			((event2_header_t *)ptr)->pcr_index);
+	LOG_EVENT("  EventType          : %u\n",
+			((event2_header_t *)ptr)->event_type);
+
+	count = ((event2_header_t *)ptr)->digests.count;
+	if (count < 1U) {
+		LOG_EVENT("Invalid Digests Count      : %u\n", count);
+		return -EINVAL;
+	}
+
+	LOG_EVENT("  Digests Count      : %u\n", count);
+
+	/* Address of TCG_PCR_EVENT2.Digests[] */
+	ptr = (uint8_t *)ptr + sizeof(event2_header_t);
+	if ((uintptr_t)ptr > (uintptr_t)end_ptr) {
+		return -EFAULT;
+	}
+
+	for (unsigned int i = 0U; i < count; ++i) {
+		/* Check AlgorithmId address */
+		if (((uintptr_t)ptr + offsetof(tpmt_ha, digest)) >
+		    (uintptr_t)end_ptr) {
+			return -EFAULT;
+		}
+
+		LOG_EVENT("    #%u AlgorithmId   : SHA", i);
+		switch (((tpmt_ha *)ptr)->algorithm_id) {
+		case TPM_ALG_SHA256:
+			sha_size = SHA256_DIGEST_SIZE;
+			(void)printf("256\n");
+			break;
+		case TPM_ALG_SHA384:
+			sha_size = SHA384_DIGEST_SIZE;
+			(void)printf("384\n");
+			break;
+		case TPM_ALG_SHA512:
+			sha_size = SHA512_DIGEST_SIZE;
+			(void)printf("512\n");
+			break;
+		default:
+			(void)printf("?\n");
+			printf("Algorithm 0x%x not found\n",
+				((tpmt_ha *)ptr)->algorithm_id);
+			return -ENOENT;
+		}
+
+		/* End of Digest[] */
+		ptr = (uint8_t *)((uintptr_t)ptr + offsetof(tpmt_ha, digest));
+		if (((uintptr_t)ptr + sha_size) > (uintptr_t)end_ptr) {
+			return -EFAULT;
+		}
+
+		/* Total size of all digests */
+		digests_size += sha_size;
+
+		LOG_EVENT("       Digest        :");
+		for (unsigned int j = 0U; j < sha_size; ++j) {
+			(void)printf(" %02x", *(uint8_t *)ptr++);
+			if ((j & U(0xF)) == U(0xF)) {
+				(void)printf("\n");
+				if (j < (sha_size - 1U)) {
+					LOG_EVENT("\t\t      :");
+				}
+			}
+		}
+	}
+
+	/* TCG_PCR_EVENT2.EventSize */
+	if (((uintptr_t)ptr + offsetof(event2_data_t, event)) >
+	    (uintptr_t)end_ptr) {
+		return -EFAULT;
+	}
+
+	event_size = ((event2_data_t *)ptr)->event_size;
+	LOG_EVENT("  EventSize          : %u\n", event_size);
+
+	/* Address of TCG_PCR_EVENT2.Event[EventSize] */
+	ptr = (uint8_t *)((uintptr_t)ptr + offsetof(event2_data_t, event));
+
+	/* End of TCG_PCR_EVENT2.Event[EventSize] */
+	if (((uintptr_t)ptr + event_size) > (uintptr_t)end_ptr) {
+		return -EFAULT;
+	}
+
+	if ((event_size == sizeof(startup_locality_event_t)) &&
+	     (strcmp((const char *)ptr, TCG_STARTUP_LOCALITY_SIGNATURE) == 0)) {
+		LOG_EVENT("  Signature          : %s\n",
+			((startup_locality_event_t *)ptr)->signature);
+		LOG_EVENT("  StartupLocality    : %u\n",
+			((startup_locality_event_t *)ptr)->startup_locality);
+	} else {
+		LOG_EVENT("  Event              : %s\n", (uint8_t *)ptr);
+	}
+
+	*log_size -= (uintptr_t)ptr + event_size - (uintptr_t)*log_addr;
+	*log_addr = (uint8_t *)ptr + event_size;
+
+	return 0;
+}
+
+int event_log_dump(uint8_t *log_addr, size_t log_size)
+{
+	int rc;
+
+	if (log_addr == NULL) {
+		return -EINVAL;
+	}
+
+	/* Print TCG_EfiSpecIDEvent */
+	rc = event_log_print_id_event(&log_addr, &log_size);
+
+	if (rc < 0) {
+		return rc;
+	}
+
+	while (log_size != 0U) {
+		rc = event_log_print_pcr_event2(&log_addr, &log_size);
+		if (rc < 0) {
+			return rc;
+		}
+	}
+	return 0;
+}
diff --git a/tftf/tests/misc_tests/test_firmware_handoff.c b/tftf/tests/misc_tests/test_firmware_handoff.c
index fe93088..026f057 100644
--- a/tftf/tests/misc_tests/test_firmware_handoff.c
+++ b/tftf/tests/misc_tests/test_firmware_handoff.c
@@ -6,7 +6,7 @@
 
 #include <assert.h>
 
-#include <tcg.h>
+#include <drivers/measured_boot/event_log/tcg.h>
 #include <test_helpers.h>
 #include <tftf_lib.h>
 #include <transfer_list.h>
diff --git a/tftf/tests/tests-firmware-handoff.mk b/tftf/tests/tests-firmware-handoff.mk
index 3620642..c7ca2cd 100644
--- a/tftf/tests/tests-firmware-handoff.mk
+++ b/tftf/tests/tests-firmware-handoff.mk
@@ -9,10 +9,10 @@
 include lib/event_log/event_log.mk
 include lib/libtl/libtl.mk
 
-TESTS_SOURCES	+=	$(addprefix tftf/tests/misc_tests/,	\
-				test_firmware_handoff.c		\
+TESTS_SOURCES	+=	$(addprefix tftf/tests/misc_tests/,		\
+	test_firmware_handoff.c						\
 )
 
-TESTS_SOURCES	+=	${LIBEVLOG_SOURCES} ${LIBTL_SOURCES}
+TESTS_SOURCES	+=	${EVENT_LOG_SOURCES} ${LIBTL_SOURCES}
 
 endif