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fusee: Implement BootConfig and Boot Reason handling.

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This commit is contained in:
hexkyz 2018-08-29 18:28:21 +01:00
parent 1cbbdb43d3
commit 611e85e6ee
19 changed files with 299 additions and 109 deletions
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141
fusee/fusee-secondary/src/nxboot.c
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@ -7,10 +7,13 @@
#include "fs_utils.h"
#include "nxboot.h"
#include "nxfs.h"
#include "bct.h"
#include "di.h"
#include "mc.h"
#include "se.h"
#include "pmc.h"
#include "i2c.h"
#include "max77620.h"
#include "cluster.h"
#include "flow.h"
#include "timers.h"
@ -78,13 +81,98 @@ static void nxboot_configure_exosphere(uint32_t target_firmware) {
*(MAILBOX_EXOSPHERE_CONFIGURATION) = exo_cfg;
}
static void nxboot_set_bootreason() {
boot_reason_t boot_reason = {0};
FILE *boot0;
nvboot_config_table *bct;
nv_bootloader_info *bootloader_info;
/* Allocate memory for the BCT. */
bct = malloc(sizeof(nvboot_config_table));
if (bct == NULL) {
fatal_error("[NXBOOT]: Out of memory!\n");
}
/* Open boot0. */
boot0 = fopen("boot0:/", "rb");
if (boot0 == NULL) {
fatal_error("[NXBOOT]: Failed to open boot0!\n");
}
/* Read the BCT. */
if (fread(bct, sizeof(nvboot_config_table), 1, boot0) == 0) {
fatal_error("[NXBOOT]: Failed to read the BCT!\n");
}
/* Close boot0. */
fclose(boot0);
/* Populate bootloader parameters. */
bootloader_info = &bct->bootloader[0];
boot_reason.bootloader_version = bootloader_info->version;
boot_reason.bootloader_start_block = bootloader_info->start_blk;
boot_reason.bootloader_start_page = bootloader_info->start_page;
boot_reason.bootloader_attribute = bootloader_info->attribute;
uint8_t power_key_intr = 0;
uint8_t rtc_intr = 0;
i2c_query(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_ONOFFIRQ, &power_key_intr, 1);
i2c_query(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_REG_RTCINT, &rtc_intr, 1);
/* Set PMIC value. */
boot_reason.boot_reason_value = ((rtc_intr << 0x08) | power_key_intr);
/* TODO: Find out what these mean. */
if (power_key_intr & 0x80)
boot_reason.boot_reason_state = 0x01;
else if (power_key_intr & 0x08)
boot_reason.boot_reason_state = 0x02;
else if (rtc_intr & 0x02)
boot_reason.boot_reason_state = 0x03;
else if (rtc_intr & 0x04)
boot_reason.boot_reason_state = 0x04;
/* Set in memory. */
memcpy((void *)MAILBOX_NX_BOOTLOADER_BOOT_REASON, &boot_reason, sizeof(boot_reason));
/* Clean up. */
free(bct);
}
static void nxboot_move_bootconfig() {
FILE *bcfile;
void *bootconfig;
/* Allocate memory for reading BootConfig. */
bootconfig = memalign(0x1000, 0x4000);
if (bootconfig == NULL) {
fatal_error("[NXBOOT]: Out of memory!\n");
}
/* Get BootConfig from the Package2 partition. */
bcfile = fopen("bcpkg21:/", "rb");
if (bcfile == NULL) {
fatal_error("[NXBOOT]: Failed to open BootConfig from eMMC!\n");
}
if (fread(bootconfig, 0x4000, 1, bcfile) < 1) {
fatal_error("[NXBOOT]: Failed to read BootConfig!\n");
}
fclose(bcfile);
/* Copy the first 0x3000 bytes into IRAM. */
memset((void *)0x4003D000, 0, 0x3000);
memcpy((void *)0x4003D000, bootconfig, 0x3000);
/* Clean up. */
free(bootconfig);
}
/* This is the main function responsible for booting Horizon. */
static nx_keyblob_t __attribute__((aligned(16))) g_keyblobs[32];
void nxboot_main(void) {
volatile tegra_pmc_t *pmc = pmc_get_regs();
volatile tegra_se_t *se = se_get_regs();
loader_ctx_t *loader_ctx = get_loader_ctx();
/* void *bootconfig; */
package2_header_t *package2;
size_t package2_size;
void *tsec_fw;
@ -101,7 +189,7 @@ void nxboot_main(void) {
void *exosphere_memaddr;
/* Allocate memory for reading Package2. */
package2 = memalign(4096, PACKAGE2_SIZE_MAX);
package2 = memalign(0x1000, PACKAGE2_SIZE_MAX);
if (package2 == NULL) {
fatal_error("[NXBOOT]: Out of memory!\n");
}
@ -115,10 +203,12 @@ void nxboot_main(void) {
}
} else {
pk2file = fopen("bcpkg21:/", "rb");
if (pk2file == NULL || fseek(pk2file, 0x4000, SEEK_SET) != 0) {
printf("[NXBOOT]: Failed to open Package2 from eMMC: %s!\n", strerror(errno));
if (pk2file == NULL) {
fatal_error("[NXBOOT]: Failed to open Package2 from eMMC: %s!\n", strerror(errno));
}
if (fseek(pk2file, 0x4000, SEEK_SET) != 0) {
fatal_error("[NXBOOT]: Failed to seek Package2 in eMMC: %s!\n", strerror(errno));
fclose(pk2file);
generic_panic();
}
}
@ -127,7 +217,7 @@ void nxboot_main(void) {
fatal_error("[NXBOOT]: Failed to read Package2!\n");
}
package2_size = package2_meta_get_size(&package2->metadata);
if (package2_size > PACKAGE2_SIZE_MAX || package2_size <= sizeof(package2_header_t)) {
if ((package2_size > PACKAGE2_SIZE_MAX) || (package2_size <= sizeof(package2_header_t))) {
fatal_error("[NXBOOT]: Package2 is too big or too small!\n");
}
if (fread(package2->data, package2_size - sizeof(package2_header_t), 1, pk2file) < 1) {
@ -138,7 +228,7 @@ void nxboot_main(void) {
/* Read and parse boot0. */
printf("[NXBOOT]: Reading boot0...\n");
boot0 = fopen("boot0:/", "rb");
if (boot0 == NULL || package1_read_and_parse_boot0(&package1loader, &package1loader_size, g_keyblobs, &available_revision, boot0) == -1) {
if ((boot0 == NULL) || (package1_read_and_parse_boot0(&package1loader, &package1loader_size, g_keyblobs, &available_revision, boot0) == -1)) {
fatal_error("[NXBOOT]: Couldn't parse boot0: %s!\n", strerror(errno));
}
fclose(boot0);
@ -146,13 +236,15 @@ void nxboot_main(void) {
/* Read the TSEC firmware from a file, otherwise from PK1L. */
if (loader_ctx->tsecfw_path[0] != '\0') {
tsec_fw_size = get_file_size(loader_ctx->tsecfw_path);
if (tsec_fw_size != 0 && tsec_fw_size != 0xF00) {
if ((tsec_fw_size != 0) && (tsec_fw_size != 0xF00)) {
fatal_error("[NXBOOT]: TSEC firmware from %s has a wrong size!\n", loader_ctx->tsecfw_path);
} else if (tsec_fw_size == 0) {
fatal_error("[NXBOOT]: Could not read the TSEC firmware from %s!\n", loader_ctx->tsecfw_path);
}
/* Allocate memory for the TSEC firmware. */
tsec_fw = memalign(0x100, tsec_fw_size);
if (tsec_fw == NULL) {
fatal_error("[NXBOOT]: Out of memory!\n");
}
@ -165,10 +257,6 @@ void nxboot_main(void) {
fatal_error("[NXBOOT]: Failed to read the TSEC firmware from Package1loader!\n");
}
}
/* TODO: Validate that we're capable of booting. */
/* TODO: Initialize Boot Reason. */
/* Find the system's target firmware. */
uint32_t target_firmware = nxboot_get_target_firmware(package1loader);
@ -180,6 +268,12 @@ void nxboot_main(void) {
/* Setup boot configuration for Exosphère. */
nxboot_configure_exosphere(target_firmware);
/* Initialize Boot Reason on older firmware versions. */
if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware < EXOSPHERE_TARGET_FIRMWARE_400) {
printf("[NXBOOT]: Initializing Boot Reason...\n");
nxboot_set_bootreason();
}
/* Derive keydata. */
if (derive_nx_keydata(MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware, g_keyblobs, available_revision, tsec_fw, tsec_fw_size) != 0) {
fatal_error("[NXBOOT]: Key derivation failed!\n");
@ -192,7 +286,9 @@ void nxboot_main(void) {
fatal_error("[NXBOOT]: Could not read the warmboot firmware from %s!\n", loader_ctx->warmboot_path);
}
/* Allocate memory for the warmboot firmware. */
warmboot_fw = malloc(warmboot_fw_size);
if (warmboot_fw == NULL) {
fatal_error("[NXBOOT]: Out of memory!\n");
}
@ -236,32 +332,36 @@ void nxboot_main(void) {
/* Patch package2, adding Thermosphère + custom KIPs. */
package2_rebuild_and_copy(package2, MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware);
printf(u8"Reading Exosphère...\n");
printf(u8"[NXBOOT]: Reading Exosphère...\n");
/* Select the right address for Exosphère. */
if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware <= EXOSPHERE_TARGET_FIRMWARE_400) {
exosphere_memaddr = (void *)0x40020000;
exosphere_memaddr = (void *)0x4002D000;
} else {
exosphere_memaddr = (void *)0x40018000; /* 5.x has its secmon's crt0 around this region. */
exosphere_memaddr = (void *)0x4002B000;
}
/* Copy Exosphère to a good location or read it directly to it. */
if (loader_ctx->exosphere_path[0] != '\0') {
size_t exosphere_size = get_file_size(loader_ctx->exosphere_path);
if (exosphere_size == 0) {
fatal_error(u8"Could not read Exosphère from %s!\n", loader_ctx->exosphere_path);
fatal_error(u8"[NXBOOT]: Could not read Exosphère from %s!\n", loader_ctx->exosphere_path);
} else if (exosphere_size > 0x10000) {
/* The maximum is actually a bit less than that. */
fatal_error(u8"Exosphère from %s is too big!\n", loader_ctx->exosphere_path);
fatal_error(u8"[NXBOOT]: Exosphère from %s is too big!\n", loader_ctx->exosphere_path);
}
if (read_from_file(exosphere_memaddr, exosphere_size, loader_ctx->exosphere_path) != exosphere_size) {
fatal_error(u8"Could not read Exosphère from %s!\n", loader_ctx->exosphere_path);
fatal_error(u8"[NXBOOT]: Could not read Exosphère from %s!\n", loader_ctx->exosphere_path);
}
} else {
memcpy(exosphere_memaddr, exosphere_bin, exosphere_bin_size);
}
/* Move BootConfig. */
printf("[NXBOOT]: Moving BootConfig...\n");
nxboot_move_bootconfig();
/* Clean up. */
free(package1loader);
if (loader_ctx->tsecfw_path[0] != '\0') {
@ -287,9 +387,6 @@ void nxboot_main(void) {
set_aes_keyslot_flags(KEYSLOT_SWITCH_4XOLDDEVICEKEY, 0xFF);
}
/* TODO: Handle bootconfig. */
memset((void *)0x4003D000, 0, 0x3000);
/* Finalize the GPU UCODE carveout. */
mc_config_carveout_finalize();