/*
* 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 .
*/
#include
#include "secmon_boot.hpp"
#include "secmon_boot_functions.hpp"
#include "../smc/secmon_random_cache.hpp"
#include "../secmon_setup.hpp"
#include "../secmon_misc.hpp"
namespace ams::secmon {
void Main() {
/* Set library register addresses. */
/* actmon::SetRegisterAddress(MemoryRegionVirtualDeviceActivityMonitor.GetAddress()); */
clkrst::SetRegisterAddress(MemoryRegionVirtualDeviceClkRst.GetAddress());
flow::SetRegisterAddress(MemoryRegionVirtualDeviceFlowController.GetAddress());
fuse::SetRegisterAddress(MemoryRegionVirtualDeviceFuses.GetAddress());
gic::SetRegisterAddress(MemoryRegionVirtualDeviceGicDistributor.GetAddress(), MemoryRegionVirtualDeviceGicCpuInterface.GetAddress());
i2c::SetRegisterAddress(i2c::Port_1, MemoryRegionVirtualDeviceI2c1.GetAddress());
i2c::SetRegisterAddress(i2c::Port_5, MemoryRegionVirtualDeviceI2c5.GetAddress());
/* pinmux::SetRegisterAddress(); */
pmc::SetRegisterAddress(MemoryRegionVirtualDevicePmc.GetAddress());
se::SetRegisterAddress(MemoryRegionVirtualDeviceSecurityEngine.GetAddress());
uart::SetRegisterAddress(MemoryRegionVirtualDeviceUart.GetAddress());
wdt::SetRegisterAddress(MemoryRegionVirtualDeviceTimer.GetAddress());
util::SetRegisterAddress(MemoryRegionVirtualDeviceTimer.GetAddress());
/* Get the secure monitor parameters. */
auto &secmon_params = *reinterpret_cast(MemoryRegionVirtualDeviceBootloaderParams.GetAddress());
/* Perform initialization. */
{
/* Perform initial setup. */
/* This checks the security engine's validity, and configures common interrupts in the GIC. */
/* This also initializes the global configuration context. */
secmon::Setup1();
/* Save the boot info. */
secmon::SaveBootInfo(secmon_params);
/* Perform cold-boot specific init. */
secmon::boot::InitializeColdBoot();
/* Setup the SoC security measures. */
secmon::SetupSocSecurity();
/* Setup the Cpu core context. */
secmon::SetupCpuCoreContext();
/* Clear the crt0 code that was present in iram. */
secmon::boot::ClearIram();
/* Alert the bootloader that we're initialized. */
secmon_params.secmon_state = pkg1::SecureMonitorState_Initialized;
/* Initialize the random cache. */
secmon::smc::FillRandomCache();
}
/* Wait for NX Bootloader to finish loading the BootConfig. */
secmon::boot::WaitForNxBootloader(secmon_params, pkg1::BootloaderState_LoadedBootConfig);
hw::DataSynchronizationBarrierInnerShareable();
/* Load the bootconfig. */
secmon::boot::LoadBootConfig(MemoryRegionPhysicalIramBootConfig.GetPointer());
/* Verify or clear the boot config. */
secmon::boot::VerifyOrClearBootConfig();
/* Get the boot config. */
const auto &bc = secmon::GetBootConfig();
/* Set the tsc value by the boot config. */
{
constexpr u64 TscMask = (static_cast(1) << 55) - 1;
secmon::boot::EnableTsc(bc.data.GetInitialTscValue() & TscMask);
}
/* Wait for NX Bootloader to initialize DRAM. */
secmon::boot::WaitForNxBootloader(secmon_params, pkg1::BootloaderState_InitializedDram);
/* Secure the PMC and MC. */
secmon::SetupPmcAndMcSecure();
/* Copy warmboot to dram. */
{
/* Define warmboot extents. */
const void * const src = MemoryRegionPhysicalIramWarmbootBin.GetPointer();
void * const dst = MemoryRegionVirtualDramSecureDataStoreWarmbootFirmware.GetPointer();
const size_t size = MemoryRegionPhysicalIramWarmbootBin.GetSize();
/* Ensure we copy the correct data. */
hw::FlushDataCache(src, size);
hw::DataSynchronizationBarrierInnerShareable();
/* Copy warmboot.bin to its secure dram location. */
std::memcpy(dst, src, size);
}
/* Unmap the identity mapping. */
secmon::boot::UnmapPhysicalIdentityMapping();
/* Setup the GPU carveout's magic numbers. */
secmon::boot::WriteGpuCarveoutMagicNumbers();
/* Wait for NX bootloader to load Package2. */
secmon::boot::WaitForNxBootloader(secmon_params, pkg1::BootloaderState_LoadedPackage2);
}
}