Atmosphere/exosphere/src/bootconfig.h

94 lines
3 KiB
C

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EXOSPHERE_BOOTCONFIG_H
#define EXOSPHERE_BOOTCONFIG_H
#include <stdbool.h>
#include <stdint.h>
#include "memory_map.h"
/* This is kind of ConfigItem, but it's stored in BootConfig, so... */
typedef enum {
KERNELCONFIGFLAG_INITIALIZE_MEMORY_TO_PATTERN = (1 << 0),
KERNELCONFIGFLAG_ENABLE_USER_EXCEPTION_HANDLERS = (1 << 1),
KERNELCONFIGFLAG_ENABLE_USER_PMU_ACCESS = (1 << 2),
KERNELCONFIGFLAG_CALL_SMC_PANIC_ON_KERNEL_ERROR = (1 << 8),
} KernelConfigFlag;
/* This provides management for Switch BootConfig. */
#define LOADED_BOOTCONFIG (get_loaded_bootconfig())
typedef struct {
uint8_t data[0x200];
} bootconfig_unsigned_config_t;
typedef struct {
uint8_t _0x0[8];
uint8_t package2_config;
uint8_t _0x9[7];
uint8_t hardware_info[0x10];
uint8_t disable_program_verification;
uint8_t _0x21[0xDF];
} bootconfig_signed_config_t;
typedef struct {
bootconfig_unsigned_config_t unsigned_config;
uint8_t signature[0x100];
bootconfig_signed_config_t signed_config;
} bootconfig_t;
static inline bootconfig_t *get_loaded_bootconfig(void) {
/* this is also get_exception_entry_stack_address(2) */
return (bootconfig_t *)(TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGEMENT_ID_SECMON_EVT) + 0x180);
}
typedef struct {
uint32_t bootloader_version;
uint32_t bootloader_start_block;
uint32_t bootloader_start_page;
uint32_t bootloader_attribute;
uint32_t boot_reason_value;
uint32_t boot_reason_state;
} boot_reason_t;
void bootconfig_load_and_verify(const bootconfig_t *bootconfig);
void bootconfig_clear(void);
void bootconfig_load_boot_reason(volatile boot_reason_t *boot_reason);
void bootconfig_set_package2_hash_for_recovery(const void *package2, size_t package2_size);
void bootconfig_get_package2_hash_for_recovery(uint64_t *out_hash);
/* Actual configuration getters. */
bool bootconfig_is_package2_plaintext(void);
bool bootconfig_is_package2_unsigned(void);
void bootconfig_set_package2_plaintext_and_unsigned(void);
bool bootconfig_disable_program_verification(void);
bool bootconfig_is_debug_mode(void);
bool bootconfig_take_extabt_serror_to_el3(void);
uint64_t bootconfig_get_value_for_sysctr0(void);
uint64_t bootconfig_get_memory_arrangement(void);
uint64_t bootconfig_get_kernel_configuration(void);
bool bootconfig_is_recovery_boot(void);
uint64_t bootconfig_get_boot_reason(void);
#endif