mirror of
https://github.com/CTCaer/hekate.git
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Proper warmboot exploit impl and documentation
Side effect: Fixed a bug where the dumped patched bootrom had the warmboot exploit patch Co-Authored-By: Balázs Triszka <balika011@gmail.com>
This commit is contained in:
Kostas Missos
parent
4781dc2ab4
commit
e105634b0d
5 changed files with 64 additions and 35 deletions
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@ -1165,7 +1165,7 @@ void ipl_main()
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set_default_configuration();
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// Save sdram lp0 config.
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if (ianos_loader(true, "bootloader/sys/libsys_lp0.bso", DRAM_LIB, (void *)sdram_get_params()))
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if (ianos_loader(true, "bootloader/sys/libsys_lp0.bso", DRAM_LIB, (void *)sdram_get_params_patched()))
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h_cfg.errors |= ERR_LIBSYS_LP0;
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display_init();
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@ -18,11 +18,11 @@
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#include "../soc/t210.h"
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#include "mc.h"
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#include "emc.h"
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#include "sdram_param_t210.h"
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#include "../soc/pmc.h"
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#include "../utils/util.h"
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#include "../soc/fuse.h"
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#include "../power/max77620.h"
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#include "../mem/sdram_param_t210.h"
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#include "../soc/clock.h"
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#define CONFIG_SDRAM_COMPRESS_CFG
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@ -388,9 +388,9 @@ break_nosleep:
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EMC(EMC_ACPD_CONTROL) = params->emc_acpd_control;
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EMC(EMC_TXDSRVTTGEN) = params->emc_txdsrvttgen;
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EMC(EMC_CFG) = (params->emc_cfg & 0xE) | 0x3C00000;
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if (params->boot_rom_patch_control & 0x80000000)
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if (params->boot_rom_patch_control & (1 << 31))
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{
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*(vu32 *)(4 * (params->boot_rom_patch_control + 0x1C000000)) = params->boot_rom_patch_data;
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*(vu32 *)(APB_MISC_BASE + params->boot_rom_patch_control * 4) = params->boot_rom_patch_data;
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MC(MC_TIMING_CONTROL) = 1;
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}
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PMC(APBDEV_PMC_IO_DPD3_REQ) = ((4 * params->emc_pmc_scratch1 >> 2) + 0x40000000) & 0xCFFF0000;
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@ -489,19 +489,47 @@ break_nosleep:
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MC(MC_EMEM_CFG_ACCESS_CTRL) = 1; //Disable write access to a bunch of EMC registers.
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}
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const void *sdram_get_params()
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sdram_params_t *sdram_get_params()
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{
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//TODO: sdram_id should be in [0, 7].
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#ifdef CONFIG_SDRAM_COMPRESS_CFG
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u8 *buf = (u8 *)0x40030000;
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LZ_Uncompress(_dram_cfg_lz, buf, sizeof(_dram_cfg_lz));
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return (const void *)&buf[sizeof(sdram_params_t) * _get_sdram_id()];
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return (sdram_params_t *)&buf[sizeof(sdram_params_t) * _get_sdram_id()];
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#else
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return _dram_cfgs[_get_sdram_id()];
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#endif
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}
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/*
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* Function: sdram_get_params_patched
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*
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* This code implements a warmboot exploit. Warmboot, that is actually so hot, it burns Nvidia once again.
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* If the boot_rom_patch_control's MSB is set, it uses it as an index to
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* APB_MISC_BASE (u32 array) and sets it to the value of boot_rom_patch_data.
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* (The MSB falls out when it gets multiplied by sizeof(u32)).
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* Because the bootrom does not do any the boundary checks, it lets us write anywhere and anything.
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* Ipatch hardware let us apply 12 changes to the bootrom and can be changed any time.
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* The first patch is not needed any more when the exploit is triggered, so we overwrite that.
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* 0x10459E is the address where it returns an error when the signature is not valid.
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* We change that to MOV R0, #0, so we pass the check.
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*
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* Note: The modulus in the header must match and validated.
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*/
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sdram_params_t *sdram_get_params_patched()
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{
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sdram_params_t *sdram_params = sdram_get_params();
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sdram_params->boot_rom_patch_control = (1 << 31) | (((IPATCH_BASE + 4) - APB_MISC_BASE) / 4);
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u32 addr = 0x10459E; // Bootrom address for warmboot sig check.
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u32 data = 0x2000; // MOV R0, #0.
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sdram_params->boot_rom_patch_data = (addr / 2) << 16 | (data & 0xffff);
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return sdram_params;
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}
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void sdram_init()
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{
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//TODO: sdram_id should be in [0,4].
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@ -17,8 +17,11 @@
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#ifndef _SDRAM_H_
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#define _SDRAM_H_
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#include "sdram_param_t210.h"
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void sdram_init();
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const void *sdram_get_params();
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sdram_params_t *sdram_get_params();
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sdram_params_t *sdram_get_params_patched();
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void sdram_lp0_save_params(const void *params);
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#endif
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@ -1,6 +1,5 @@
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/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018 balika011
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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@ -172,7 +171,7 @@ static const u8 _dram_cfg_0[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -333,7 +332,7 @@ static const u8 _dram_cfg_1[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -494,7 +493,7 @@ static const u8 _dram_cfg_2[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -655,7 +654,7 @@ static const u8 _dram_cfg_3[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -816,7 +815,7 @@ static const u8 _dram_cfg_4[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -977,7 +976,7 @@ static const u8 _dram_cfg_5[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -1138,7 +1137,7 @@ static const u8 _dram_cfg_6[1896] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x46, 0x2C, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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@ -1,6 +1,5 @@
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/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018 balika011
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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@ -15,7 +14,7 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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static const u8 _dram_cfg_lz[1270] = {
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static const u8 _dram_cfg_lz[1262] = {
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0x17, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x00,
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0x00, 0x2C, 0x17, 0x04, 0x09, 0x00, 0x17, 0x04, 0x04, 0x17, 0x08, 0x08,
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0x17, 0x10, 0x10, 0x00, 0x00, 0x68, 0xBC, 0x01, 0x70, 0x0A, 0x00, 0x00,
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@ -104,22 +103,22 @@ static const u8 _dram_cfg_lz[1270] = {
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0x17, 0x17, 0x3A, 0x7E, 0x16, 0x40, 0x17, 0x0C, 0x8B, 0x1F, 0x17, 0x2A,
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0x38, 0x1E, 0x17, 0x0A, 0x38, 0x17, 0x13, 0x81, 0x28, 0x00, 0xC0, 0x17,
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0x17, 0x55, 0x46, 0x24, 0x17, 0x0A, 0x81, 0x28, 0x17, 0x14, 0x38, 0x17,
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0x18, 0x81, 0x60, 0x46, 0x2C, 0x17, 0x06, 0x38, 0xEC, 0x00, 0x00, 0x00,
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0x01, 0x77, 0x00, 0xFC, 0x00, 0x20, 0xCF, 0x22, 0x17, 0x10, 0x82, 0x3C,
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0x17, 0x82, 0x0C, 0x8E, 0x68, 0x17, 0x04, 0x24, 0x17, 0x5C, 0x8E, 0x68,
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0x17, 0x07, 0x82, 0x5F, 0x80, 0x17, 0x87, 0x01, 0x8E, 0x68, 0x02, 0x17,
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0x81, 0x4A, 0x8E, 0x68, 0x17, 0x0C, 0x87, 0x78, 0x17, 0x85, 0x28, 0x8E,
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0x68, 0x17, 0x8E, 0x68, 0x9D, 0x50, 0x17, 0x81, 0x24, 0x8E, 0x68, 0x17,
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0x04, 0x2C, 0x17, 0x28, 0x8E, 0x68, 0x17, 0x04, 0x30, 0x17, 0x85, 0x3C,
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0x8E, 0x68, 0x12, 0x17, 0x07, 0x85, 0x70, 0x17, 0x88, 0x74, 0x8E, 0x68,
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0x17, 0x87, 0x3E, 0x9D, 0x50, 0x0C, 0x17, 0x04, 0x04, 0x17, 0x12, 0x8E,
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0x68, 0x18, 0x17, 0x87, 0x12, 0xBB, 0x20, 0x17, 0x83, 0x04, 0x9D, 0x50,
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0x15, 0x17, 0x05, 0x8D, 0x76, 0x17, 0x0F, 0x8B, 0x49, 0x17, 0x0B, 0x18,
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0x32, 0x00, 0x2F, 0x00, 0x32, 0x00, 0x31, 0x00, 0x34, 0x00, 0x36, 0x00,
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0x2F, 0x00, 0x33, 0x17, 0x09, 0x84, 0x0C, 0x17, 0x18, 0x18, 0x17, 0x20,
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0x8E, 0x68, 0x15, 0x17, 0x07, 0x5A, 0x17, 0x06, 0x5E, 0x16, 0x00, 0x15,
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0x17, 0x82, 0x40, 0x9D, 0x50, 0x17, 0x86, 0x5F, 0xBB, 0x20, 0x3A, 0x00,
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0x00, 0x00, 0x1D, 0x17, 0x81, 0x4F, 0xAC, 0x38, 0x3B, 0x17, 0x04, 0x04,
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0x17, 0x86, 0x30, 0x8E, 0x68, 0x17, 0x81, 0x53, 0xAC, 0x38, 0x07, 0x17,
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0x0D, 0x8E, 0x68, 0xA3, 0x72, 0x17, 0x83, 0x10, 0x8E, 0x68
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0x18, 0x81, 0x60, 0x46, 0x2C, 0x17, 0x06, 0x38, 0xEC, 0x17, 0x0D, 0x16,
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0x17, 0x0E, 0x82, 0x3C, 0x17, 0x82, 0x0C, 0x8E, 0x68, 0x17, 0x04, 0x24,
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0x17, 0x5C, 0x8E, 0x68, 0x17, 0x07, 0x82, 0x5F, 0x80, 0x17, 0x87, 0x01,
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0x8E, 0x68, 0x02, 0x17, 0x81, 0x4A, 0x8E, 0x68, 0x17, 0x0C, 0x87, 0x78,
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0x17, 0x85, 0x28, 0x8E, 0x68, 0x17, 0x8E, 0x68, 0x9D, 0x50, 0x17, 0x81,
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0x24, 0x8E, 0x68, 0x17, 0x04, 0x2C, 0x17, 0x28, 0x8E, 0x68, 0x17, 0x04,
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0x30, 0x17, 0x85, 0x3C, 0x8E, 0x68, 0x12, 0x17, 0x07, 0x85, 0x70, 0x17,
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0x88, 0x74, 0x8E, 0x68, 0x17, 0x87, 0x3E, 0x9D, 0x50, 0x0C, 0x17, 0x04,
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0x04, 0x17, 0x12, 0x8E, 0x68, 0x18, 0x17, 0x87, 0x12, 0xBB, 0x20, 0x17,
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0x83, 0x04, 0x9D, 0x50, 0x15, 0x17, 0x05, 0x8D, 0x76, 0x17, 0x0F, 0x8B,
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0x49, 0x17, 0x0B, 0x18, 0x32, 0x00, 0x2F, 0x00, 0x32, 0x00, 0x31, 0x00,
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0x34, 0x00, 0x36, 0x00, 0x2F, 0x00, 0x33, 0x17, 0x09, 0x84, 0x0C, 0x17,
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0x18, 0x18, 0x17, 0x20, 0x8E, 0x68, 0x15, 0x17, 0x07, 0x5A, 0x17, 0x06,
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0x5E, 0x16, 0x00, 0x15, 0x17, 0x82, 0x40, 0x9D, 0x50, 0x17, 0x86, 0x5F,
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0xBB, 0x20, 0x3A, 0x00, 0x00, 0x00, 0x1D, 0x17, 0x81, 0x4F, 0xAC, 0x38,
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0x3B, 0x17, 0x04, 0x04, 0x17, 0x86, 0x30, 0x8E, 0x68, 0x17, 0x81, 0x53,
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0xAC, 0x38, 0x07, 0x17, 0x0D, 0x8E, 0x68, 0xA3, 0x72, 0x17, 0x83, 0x10,
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0x8E, 0x68
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};
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