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Atmosphere/fusee_cpp/program/source/fusee_secmon_sync.cpp
2021-09-06 16:26:50 -07:00

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/*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "fusee_secmon_sync.hpp"
namespace ams::nxboot {
namespace {
ALWAYS_INLINE pkg1::SecureMonitorParameters &GetSecureMonitorParameters() {
return *secmon::MemoryRegionPhysicalDeviceBootloaderParams.GetPointer<pkg1::SecureMonitorParameters>();
}
}
void InitializeSecureMonitorMailbox() {
std::memset(std::addressof(GetSecureMonitorParameters()), 0, sizeof(GetSecureMonitorParameters()));
}
void WaitSecureMonitorState(pkg1::SecureMonitorState state) {
auto &secmon_params = GetSecureMonitorParameters();
while (secmon_params.secmon_state != state) {
hw::InvalidateDataCache(std::addressof(secmon_params.secmon_state), sizeof(secmon_params.secmon_state));
util::WaitMicroSeconds(1);
}
}
void SetBootloaderState(pkg1::BootloaderState state) {
auto &secmon_params = GetSecureMonitorParameters();
secmon_params.bootloader_state = state;
hw::FlushDataCache(std::addressof(secmon_params.bootloader_state), sizeof(secmon_params.bootloader_state));
}
}