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fusee: Add full 6.2.0 support via SMMU virtualization.

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This commit is contained in:
hexkyz 2018-11-29 23:32:31 +00:00
parent e321f0ac04
commit ed37706915
11 changed files with 495 additions and 74 deletions
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45
fusee/fusee-secondary/src/nxboot.c
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@ -36,6 +36,8 @@
#include "key_derivation.h"
#include "package1.h"
#include "package2.h"
#include "smmu.h"
#include "tsec.h"
#include "loader.h"
#include "splash_screen.h"
#include "exocfg.h"
@ -311,9 +313,28 @@ uint32_t nxboot_main(void) {
print(SCREEN_LOG_LEVEL_MANDATORY, "[NXBOOT]: Loaded firmware from eMMC...\n");
/* Get the TSEC keys. */
uint8_t tsec_key[0x10] = {0};
uint8_t tsec_root_key[0x10] = {0};
if (target_firmware >= EXOSPHERE_TARGET_FIRMWARE_620) {
uint8_t tsec_keys[0x20] = {0};
/* Emulate the TSEC payload on 6.2.0+. */
smmu_emulate_tsec((void *)tsec_keys, package1loader, package1loader_size, package1loader);
/* Copy back the keys. */
memcpy((void *)tsec_key, (void *)tsec_keys, 0x10);
memcpy((void *)tsec_root_key, (void *)tsec_keys + 0x10, 0x10);
} else {
/* Run the TSEC payload and get the key. */
if (tsec_get_key(tsec_key, 1, tsec_fw, tsec_fw_size) != 0) {
fatal_error("[NXBOOT]: Failed to get TSEC key!\n");
}
}
/* Derive keydata. */
unsigned int keygen_type = 0;
if (derive_nx_keydata(target_firmware, g_keyblobs, available_revision, tsec_fw, tsec_fw_size, &keygen_type) != 0) {
if (derive_nx_keydata(target_firmware, g_keyblobs, available_revision, tsec_key, tsec_root_key, &keygen_type) != 0) {
fatal_error("[NXBOOT]: Key derivation failed!\n");
}
@ -343,16 +364,26 @@ uint32_t nxboot_main(void) {
fatal_error("[NXBOOT]: Could not read the warmboot firmware from %s!\n", loader_ctx->warmboot_path);
}
} else {
uint8_t ctr[16];
package1_size = package1_get_encrypted_package1(&package1, ctr, package1loader, package1loader_size);
if (package1_decrypt(package1, package1_size, ctr)) {
if (target_firmware >= EXOSPHERE_TARGET_FIRMWARE_620) {
/* Package1 was decrypted during TSEC emulation. */
const uint8_t *package1_hdr = (const uint8_t *)package1loader + 0x7000 - 0x20;
package1 = (package1_header_t *)(package1_hdr + 0x20);
package1_size = *(uint32_t *)package1_hdr;
warmboot_fw = package1_get_warmboot_fw(package1);
warmboot_fw_size = package1->warmboot_size;
} else {
warmboot_fw = NULL;
warmboot_fw_size = 0;
/* Decrypt package1 and extract the warmboot firmware. */
uint8_t ctr[16];
package1_size = package1_get_encrypted_package1(&package1, ctr, package1loader, package1loader_size);
if (package1_decrypt(package1, package1_size, ctr)) {
warmboot_fw = package1_get_warmboot_fw(package1);
warmboot_fw_size = package1->warmboot_size;
} else {
warmboot_fw = NULL;
warmboot_fw_size = 0;
}
}
if (warmboot_fw_size == 0) {
fatal_error("[NXBOOT]: Could not read the warmboot firmware from Package1!\n");
}