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hekate/bootloader/hos/secmon_exo.c
2020-04-30 03:25:22 +03:00

302 lines
7.1 KiB
C

/*
* Copyright (c) 2018-2020 CTCaer
* Copyright (c) 2019 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/>.
*/
#include <string.h>
#include <stdlib.h>
#include "hos.h"
#include "../config/config.h"
#include "../gfx/di.h"
#include "../gfx/gfx.h"
#include "../libs/fatfs/ff.h"
#include "../mem/heap.h"
#include "../soc/fuse.h"
#include "../storage/emummc.h"
#include "../storage/nx_sd.h"
#include "../storage/sdmmc.h"
#include "../utils/btn.h"
#include "../utils/util.h"
#include "../utils/types.h"
extern hekate_config h_cfg;
enum emuMMC_Type
{
emuMMC_None = 0,
emuMMC_Partition,
emuMMC_File,
emuMMC_MAX
};
/* "EFS0" */
#define EMUMMC_MAGIC 0x30534645
#define EMUMMC_FILE_PATH_MAX 0x80
typedef struct
{
u32 magic;
u32 type;
u32 id;
u32 fs_ver;
} emummc_base_config_t;
typedef struct
{
u64 start_sector;
} emummc_partition_config_t;
typedef struct
{
char path[EMUMMC_FILE_PATH_MAX];
} emummc_file_config_t;
typedef struct
{
emummc_base_config_t base_cfg;
union
{
emummc_partition_config_t partition_cfg;
emummc_file_config_t file_cfg;
};
char nintendo_path[EMUMMC_FILE_PATH_MAX];
} exo_emummc_config_t;
typedef struct _exo_cfg_t
{
u32 magic;
u32 fwno;
u32 flags;
u32 reserved[5];
exo_emummc_config_t emummc_cfg;
} exo_cfg_t;
typedef struct _atm_meta_t
{
u32 magic;
u32 fwno;
} wb_cfg_t;
// Atmosphère reboot-to-fatal-error.
typedef struct _atm_fatal_error_ctx
{
u32 magic;
u32 error_desc;
u64 title_id;
union
{
u64 gprs[32];
struct
{
u64 _gprs[29];
u64 fp;
u64 lr;
u64 sp;
};
};
u64 pc;
u64 module_base;
u32 pstate;
u32 afsr0;
u32 afsr1;
u32 esr;
u64 far;
u64 report_identifier; // Normally just system tick.
u64 stack_trace_size;
u64 stack_dump_size;
u64 stack_trace[0x20];
u8 stack_dump[0x100];
u8 tls[0x100];
} atm_fatal_error_ctx;
#define ATM_FATAL_ERR_CTX_ADDR 0x4003E000
#define ATM_FATAL_MAGIC 0x30454641 // AFE0
#define ATM_WB_HEADER_OFF 0x244
#define ATM_WB_MAGIC 0x30544257
// Exosphère mailbox defines.
#define EXO_CFG_ADDR 0x8000F000
#define EXO_MAGIC_VAL 0x304F5845
#define EXO_FLAG_DBG_PRIV (1 << 1)
#define EXO_FLAG_DBG_USER (1 << 2)
#define EXO_FLAG_NO_USER_EXC (1 << 3)
#define EXO_FLAG_USER_PMU (1 << 4)
void config_exosphere(launch_ctxt_t *ctxt)
{
u32 exoFwNo = 0;
u32 exoFlags = 0;
u32 kb = ctxt->pkg1_id->kb;
memset((exo_cfg_t *)EXO_CFG_ADDR, 0, sizeof(exo_cfg_t));
volatile exo_cfg_t *exo_cfg = (exo_cfg_t *)EXO_CFG_ADDR;
switch (kb)
{
case KB_FIRMWARE_VERSION_100_200:
if (!strcmp(ctxt->pkg1_id->id, "20161121183008"))
exoFwNo = 1;
else
exoFwNo = 2;
break;
case KB_FIRMWARE_VERSION_300:
exoFwNo = 3;
break;
default:
exoFwNo = kb + 1;
if (!strcmp(ctxt->pkg1_id->id, "20190314172056") || (kb >= KB_FIRMWARE_VERSION_810))
exoFwNo++; // ATM_TARGET_FW_800/810/900/910.
if (!strcmp(ctxt->pkg1_id->id, "20200303104606"))
exoFwNo++; // ATM_TARGET_FW_1000.
break;
}
// To avoid problems, make private debug mode always on if not semi-stock.
if (!ctxt->stock || (emu_cfg.enabled && !h_cfg.emummc_force_disable))
exoFlags |= EXO_FLAG_DBG_PRIV;
// Disable proper failure handling.
if (ctxt->exo_no_user_exceptions)
exoFlags |= EXO_FLAG_NO_USER_EXC;
// Enable user access to PMU.
if (ctxt->exo_user_pmu)
exoFlags |= EXO_FLAG_USER_PMU;
// Set mailbox values.
exo_cfg->magic = EXO_MAGIC_VAL;
exo_cfg->fwno = exoFwNo;
exo_cfg->flags = exoFlags;
// If warmboot is lp0fw, add in RSA modulus.
volatile wb_cfg_t *wb_cfg = (wb_cfg_t *)(ctxt->pkg1_id->warmboot_base + ATM_WB_HEADER_OFF);
if (wb_cfg->magic == ATM_WB_MAGIC)
{
wb_cfg->fwno = exoFwNo;
sdmmc_storage_t storage;
sdmmc_t sdmmc;
// Set warmboot binary rsa modulus.
u8 *rsa_mod = (u8 *)malloc(512);
sdmmc_storage_init_mmc(&storage, &sdmmc, SDMMC_BUS_WIDTH_8, SDHCI_TIMING_MMC_HS400);
sdmmc_storage_set_mmc_partition(&storage, EMMC_BOOT0);
sdmmc_storage_read(&storage, 1, 1, rsa_mod);
sdmmc_storage_end(&storage);
// Patch AutoRCM out.
if ((fuse_read_odm(4) & 3) != 3)
rsa_mod[0x10] = 0xF7;
else
rsa_mod[0x10] = 0x37;
memcpy((void *)(ctxt->pkg1_id->warmboot_base + 0x10), rsa_mod + 0x10, 0x100);
}
if (emu_cfg.enabled && !h_cfg.emummc_force_disable)
{
exo_cfg->emummc_cfg.base_cfg.magic = EMUMMC_MAGIC;
exo_cfg->emummc_cfg.base_cfg.type = emu_cfg.sector ? emuMMC_Partition : emuMMC_File;
exo_cfg->emummc_cfg.base_cfg.fs_ver = emu_cfg.fs_ver;
exo_cfg->emummc_cfg.base_cfg.id = emu_cfg.id;
if (emu_cfg.sector)
exo_cfg->emummc_cfg.partition_cfg.start_sector = emu_cfg.sector;
else
strcpy((char *)exo_cfg->emummc_cfg.file_cfg.path, emu_cfg.path);
if (emu_cfg.nintendo_path && !ctxt->stock)
strcpy((char *)exo_cfg->emummc_cfg.nintendo_path, emu_cfg.nintendo_path);
else if (ctxt->stock)
strcpy((char *)exo_cfg->emummc_cfg.nintendo_path, "Nintendo");
else
exo_cfg->emummc_cfg.nintendo_path[0] = 0;
}
}
static const char *get_error_desc(u32 error_desc)
{
switch (error_desc)
{
case 0x100:
return "Instruction Abort";
case 0x101:
return "Data Abort";
case 0x102:
return "PC Misalignment";
case 0x103:
return "SP Misalignment";
case 0x104:
return "Trap";
case 0x106:
return "SError";
case 0x301:
return "Bad SVC";
case 0xFFE:
return "std::abort()";
default:
return "Unknown";
}
}
void secmon_exo_check_panic()
{
volatile atm_fatal_error_ctx *rpt = (atm_fatal_error_ctx *)ATM_FATAL_ERR_CTX_ADDR;
// Mask magic to maintain compatibility with any AFE version, thanks to additive struct members.
if ((rpt->magic & 0xF0FFFFFF) != ATM_FATAL_MAGIC)
return;
gfx_clear_grey(0x1B);
gfx_con_setpos(0, 0);
WPRINTF("Panic occurred while running Atmosphere.\n\n");
WPRINTFARGS("Title ID: %08X%08X", (u32)((u64)rpt->title_id >> 32), (u32)rpt->title_id);
WPRINTFARGS("Error Desc: %s (0x%x)\n", get_error_desc(rpt->error_desc), rpt->error_desc);
// Save context to the SD card.
char filepath[0x40];
f_mkdir("atmosphere/fatal_errors");
strcpy(filepath, "/atmosphere/fatal_errors/report_");
itoa((u32)((u64)rpt->report_identifier >> 32), filepath + strlen(filepath), 16);
itoa((u32)(rpt->report_identifier), filepath + strlen(filepath), 16);
strcat(filepath, ".bin");
sd_save_to_file((void *)rpt, sizeof(atm_fatal_error_ctx), filepath);
gfx_con.fntsz = 8;
WPRINTFARGS("Report saved to %s\n", filepath);
// Change magic to invalid, to prevent double-display of error/bootlooping.
rpt->magic = 0x0;
gfx_con.fntsz = 16;
gfx_printf("\n\nPress POWER to continue.\n");
display_backlight_brightness(100, 1000);
msleep(1000);
u32 btn = btn_wait();
while (!(btn & BTN_POWER))
btn = btn_wait();
display_backlight_brightness(0, 1000);
gfx_con_setpos(0, 0);
}