mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-04 20:18:32 +01:00
90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
|
/*
|
||
|
|
* 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 "secmon_cpu_context.hpp"
|
||
|
|
#include "secmon_map.hpp"
|
||
|
|
#include "secmon_page_mapper.hpp"
|
||
|
|
#include "secmon_mariko_fatal_error.hpp"
|
||
|
|
#include "smc/secmon_smc_power_management.hpp"
|
||
|
|
|
||
|
|
namespace ams::secmon {
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
constinit u8 g_fatal_error_mask = 0;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void HandleMarikoFatalErrorInterrupt() {
|
||
|
|
/* This interrupt handler doesn't return, so mark that we're at end of interrupt. */
|
||
|
|
gic::SetEndOfInterrupt(MarikoFatalErrorInterruptId);
|
||
|
|
|
||
|
|
/* Get the current core id. */
|
||
|
|
const auto core_id = hw::GetCurrentCoreId();
|
||
|
|
|
||
|
|
/* Set that we received the fatal on the current core. */
|
||
|
|
g_fatal_error_mask |= (1u << core_id);
|
||
|
|
hw::FlushDataCache(std::addressof(g_fatal_error_mask), sizeof(g_fatal_error_mask));
|
||
|
|
hw::DataSynchronizationBarrier();
|
||
|
|
|
||
|
|
/* If not all cores have received the fatal, we need to trigger the interrupt on other cores. */
|
||
|
|
if (g_fatal_error_mask != (1u << NumCores) - 1) {
|
||
|
|
/* Configure and send the interrupt to the next core. */
|
||
|
|
const auto next_core = __builtin_ctz(~g_fatal_error_mask);
|
||
|
|
gic::SetSpiTargetCpu(MarikoFatalErrorInterruptId, (1u << next_core));
|
||
|
|
gic::SetPending(MarikoFatalErrorInterruptId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* If current core is not 3, kill ourselves. */
|
||
|
|
if (core_id != NumCores - 1) {
|
||
|
|
smc::PowerOffCpu();
|
||
|
|
} else {
|
||
|
|
/* Wait for all cores to kill themselves. */
|
||
|
|
while (g_fatal_error_mask != (1u << NumCores) - 1) {
|
||
|
|
util::WaitMicroSeconds(100);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Copy the fatal error context to mariko tzram. */
|
||
|
|
{
|
||
|
|
/* Map the iram page. */
|
||
|
|
constexpr uintptr_t FatalErrorPhysicalAddress = MemoryRegionPhysicalIramFatalErrorContext.GetAddress();
|
||
|
|
AtmosphereIramPageMapper mapper(FatalErrorPhysicalAddress);
|
||
|
|
if (mapper.Map()) {
|
||
|
|
/* Copy the fatal error context. */
|
||
|
|
void *dst = MemoryRegionVirtualTzramMarikoProgramFatalErrorContext.GetPointer<void>();
|
||
|
|
const void *src = mapper.GetPointerTo(FatalErrorPhysicalAddress, sizeof(ams::impl::FatalErrorContext));
|
||
|
|
std::memcpy(dst, src, sizeof(ams::impl::FatalErrorContext));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Map Dram for the mariko program. */
|
||
|
|
MapDramForMarikoProgram();
|
||
|
|
|
||
|
|
AMS_SECMON_LOG("%s\n", "Jumping to Mariko Fatal.");
|
||
|
|
AMS_LOG_FLUSH();
|
||
|
|
|
||
|
|
/* Jump to the mariko fatal program. */
|
||
|
|
reinterpret_cast<void (*)()>(secmon::MemoryRegionVirtualTzramMarikoProgram.GetAddress())();
|
||
|
|
|
||
|
|
/* The mariko fatal program never returns. */
|
||
|
|
__builtin_unreachable();
|
||
|
|
|
||
|
|
AMS_INFINITE_LOOP();
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|