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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142/* SPDX-License-Identifier: GPL-2.0-only *//* * tboot.h: shared data structure with tboot and kernel and functions * used by kernel for runtime support of Intel(R) Trusted * Execution Technology * * Copyright (c) 2006-2009, Intel Corporation */
#ifndef _LINUX_TBOOT_H#define _LINUX_TBOOT_H
/* these must have the values from 0-5 in this order */enum { TB_SHUTDOWN_REBOOT = 0, TB_SHUTDOWN_S5, TB_SHUTDOWN_S4, TB_SHUTDOWN_S3, TB_SHUTDOWN_HALT, TB_SHUTDOWN_WFS};
#ifdef CONFIG_INTEL_TXT#include <linux/acpi.h>/* used to communicate between tboot and the launched kernel */
#define TB_KEY_SIZE 64 /* 512 bits */
#define MAX_TB_MAC_REGIONS 32
struct tboot_mac_region { u64 start; /* must be 64 byte -aligned */ u32 size; /* must be 64 byte -granular */} __packed;
/* GAS - Generic Address Structure (ACPI 2.0+) */struct tboot_acpi_generic_address { u8 space_id; u8 bit_width; u8 bit_offset; u8 access_width; u64 address;} __packed;
/* * combines Sx info from FADT and FACS tables per ACPI 2.0+ spec * (https://uefi.org/specifications) */struct tboot_acpi_sleep_info { struct tboot_acpi_generic_address pm1a_cnt_blk; struct tboot_acpi_generic_address pm1b_cnt_blk; struct tboot_acpi_generic_address pm1a_evt_blk; struct tboot_acpi_generic_address pm1b_evt_blk; u16 pm1a_cnt_val; u16 pm1b_cnt_val; u64 wakeup_vector; u32 vector_width; u64 kernel_s3_resume_vector;} __packed;
/* * shared memory page used for communication between tboot and kernel */struct tboot { /* * version 3+ fields: */
/* TBOOT_UUID */ u8 uuid[16];
/* version number: 5 is current */ u32 version;
/* physical addr of tb_log_t log */ u32 log_addr;
/* * physical addr of entry point for tboot shutdown and * type of shutdown (TB_SHUTDOWN_*) being requested */ u32 shutdown_entry; u32 shutdown_type;
/* kernel-specified ACPI info for Sx shutdown */ struct tboot_acpi_sleep_info acpi_sinfo;
/* tboot location in memory (physical) */ u32 tboot_base; u32 tboot_size;
/* memory regions (phys addrs) for tboot to MAC on S3 */ u8 num_mac_regions; struct tboot_mac_region mac_regions[MAX_TB_MAC_REGIONS];
/* * version 4+ fields: */
/* symmetric key for use by kernel; will be encrypted on S3 */ u8 s3_key[TB_KEY_SIZE];
/* * version 5+ fields: */
/* used to 4byte-align num_in_wfs */ u8 reserved_align[3];
/* number of processors in wait-for-SIPI */ u32 num_in_wfs;} __packed;
/* * UUID for tboot data struct to facilitate matching * defined as {663C8DFF-E8B3-4b82-AABF-19EA4D057A08} by tboot, which is * represented as {} in the char array used here */#define TBOOT_UUID {0xff, 0x8d, 0x3c, 0x66, 0xb3, 0xe8, 0x82, 0x4b, 0xbf,\ 0xaa, 0x19, 0xea, 0x4d, 0x5, 0x7a, 0x8}
bool tboot_enabled(void);extern void tboot_probe(void);extern void tboot_shutdown(u32 shutdown_type);extern struct acpi_table_header *tboot_get_dmar_table( struct acpi_table_header *dmar_tbl);
#else
#define tboot_enabled() 0#define tboot_probe() do { } while (0)#define tboot_shutdown(shutdown_type) do { } while (0)#define tboot_sleep(sleep_state, pm1a_control, pm1b_control) \ do { } while (0)#define tboot_get_dmar_table(dmar_tbl) (dmar_tbl)
#endif /* !CONFIG_INTEL_TXT */
#endif /* _LINUX_TBOOT_H */