tpm: move tpm_eventlog.h outside of drivers folder

The generic definitions of data structures in tpm_eventlog.h are
required by other part of the kernel (namely, the EFI stub).

Signed-off-by: Thiebaud Weksteen <tweek@google.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Jarkko Sakkinen  <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen  <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen  <jarkko.sakkinen@linux.intel.com>

1 files changed, 121 insertions, 0 deletions

diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h
new file mode 100644
index 000000000000..a2a86783f974
--- /dev/null
+++ b/include/linux/tpm_eventlog.h
@@ -0,0 +1,121 @@
+/* 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
+
+#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