v4.19.13 snapshot.
diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h
new file mode 100644
index 0000000..20d9da7
--- /dev/null
+++ b/include/linux/tpm_eventlog.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __LINUX_TPM_EVENTLOG_H__
+#define __LINUX_TPM_EVENTLOG_H__
+
+#include <crypto/hash_info.h>
+
+#define TCG_EVENT_NAME_LEN_MAX 255
+#define MAX_TEXT_EVENT 1000 /* Max event string length */
+#define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */
+#define TPM2_ACTIVE_PCR_BANKS 3
+
+#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x1
+#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x2
+
+#ifdef CONFIG_PPC64
+#define do_endian_conversion(x) be32_to_cpu(x)
+#else
+#define do_endian_conversion(x) x
+#endif
+
+enum bios_platform_class {
+ BIOS_CLIENT = 0x00,
+ BIOS_SERVER = 0x01,
+};
+
+struct tcpa_event {
+ u32 pcr_index;
+ u32 event_type;
+ u8 pcr_value[20]; /* SHA1 */
+ u32 event_size;
+ u8 event_data[0];
+};
+
+enum tcpa_event_types {
+ PREBOOT = 0,
+ POST_CODE,
+ UNUSED,
+ NO_ACTION,
+ SEPARATOR,
+ ACTION,
+ EVENT_TAG,
+ SCRTM_CONTENTS,
+ SCRTM_VERSION,
+ CPU_MICROCODE,
+ PLATFORM_CONFIG_FLAGS,
+ TABLE_OF_DEVICES,
+ COMPACT_HASH,
+ IPL,
+ IPL_PARTITION_DATA,
+ NONHOST_CODE,
+ NONHOST_CONFIG,
+ NONHOST_INFO,
+};
+
+struct tcpa_pc_event {
+ u32 event_id;
+ u32 event_size;
+ u8 event_data[0];
+};
+
+enum tcpa_pc_event_ids {
+ SMBIOS = 1,
+ BIS_CERT,
+ POST_BIOS_ROM,
+ ESCD,
+ CMOS,
+ NVRAM,
+ OPTION_ROM_EXEC,
+ OPTION_ROM_CONFIG,
+ OPTION_ROM_MICROCODE = 10,
+ S_CRTM_VERSION,
+ S_CRTM_CONTENTS,
+ POST_CONTENTS,
+ HOST_TABLE_OF_DEVICES,
+};
+
+/* http://www.trustedcomputinggroup.org/tcg-efi-protocol-specification/ */
+
+struct tcg_efi_specid_event_algs {
+ u16 alg_id;
+ u16 digest_size;
+} __packed;
+
+struct tcg_efi_specid_event {
+ u8 signature[16];
+ u32 platform_class;
+ u8 spec_version_minor;
+ u8 spec_version_major;
+ u8 spec_errata;
+ u8 uintnsize;
+ u32 num_algs;
+ struct tcg_efi_specid_event_algs digest_sizes[TPM2_ACTIVE_PCR_BANKS];
+ u8 vendor_info_size;
+ u8 vendor_info[0];
+} __packed;
+
+struct tcg_pcr_event {
+ u32 pcr_idx;
+ u32 event_type;
+ u8 digest[20];
+ u32 event_size;
+ u8 event[0];
+} __packed;
+
+struct tcg_event_field {
+ u32 event_size;
+ u8 event[0];
+} __packed;
+
+struct tpm2_digest {
+ u16 alg_id;
+ u8 digest[SHA512_DIGEST_SIZE];
+} __packed;
+
+struct tcg_pcr_event2 {
+ u32 pcr_idx;
+ u32 event_type;
+ u32 count;
+ struct tpm2_digest digests[TPM2_ACTIVE_PCR_BANKS];
+ struct tcg_event_field event;
+} __packed;
+
+#endif