1 files changed, 124 insertions, 0 deletions

diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h
new file mode 100644
index 000000000000..20d9da77fc11
--- /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