2020-06-08 18:02:50 +02:00
|
|
|
/*
|
|
|
|
* 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>
|
2020-11-16 23:32:26 +01:00
|
|
|
#include "secmon_map.hpp"
|
2020-06-08 18:02:50 +02:00
|
|
|
#include "secmon_page_mapper.hpp"
|
|
|
|
#include "secmon_user_power_management.hpp"
|
|
|
|
|
|
|
|
#include "rebootstub_bin.h"
|
|
|
|
|
|
|
|
namespace ams::secmon {
|
|
|
|
|
|
|
|
namespace {
|
|
|
|
|
|
|
|
constexpr inline const uintptr_t PMC = MemoryRegionVirtualDevicePmc.GetAddress();
|
|
|
|
|
|
|
|
constexpr inline const u32 RebootStubPhysicalAddress = MemoryRegionPhysicalIramRebootStub.GetAddress();
|
|
|
|
|
|
|
|
enum RebootStubAction {
|
|
|
|
RebootStubAction_ShutDown = 0,
|
|
|
|
RebootStubAction_JumpToPayload = 1,
|
|
|
|
};
|
|
|
|
|
|
|
|
NORETURN void PerformPmcReboot() {
|
|
|
|
/* Write MAIN_RST. */
|
|
|
|
reg::Write(PMC + APBDEV_PMC_CNTRL, 0x10);
|
|
|
|
|
|
|
|
while (true) {
|
|
|
|
/* ... */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void LoadRebootStub(u32 action) {
|
|
|
|
/* Configure the bootrom to boot to warmboot payload. */
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH0, 0x1);
|
|
|
|
|
|
|
|
/* Patch the bootrom to perform an SVC immediately after the second spare write. */
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH45, 0x2E38DFFF);
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH46, 0x6001DC28);
|
|
|
|
|
|
|
|
/* Patch the bootrom to jump to the reboot stub we'll prepare in iram on SVC. */
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH33, RebootStubPhysicalAddress);
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH40, 0x6000F208);
|
|
|
|
|
|
|
|
{
|
|
|
|
/* Map the iram page. */
|
|
|
|
AtmosphereIramPageMapper mapper(RebootStubPhysicalAddress);
|
|
|
|
AMS_ABORT_UNLESS(mapper.Map());
|
|
|
|
|
|
|
|
/* Copy the reboot stub. */
|
|
|
|
AMS_ABORT_UNLESS(mapper.CopyToMapping(RebootStubPhysicalAddress, rebootstub_bin, rebootstub_bin_size));
|
|
|
|
|
|
|
|
/* Set the reboot type. */
|
|
|
|
AMS_ABORT_UNLESS(mapper.CopyToMapping(RebootStubPhysicalAddress + 4, std::addressof(action), sizeof(action)));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
void PerformUserRebootToRcm() {
|
|
|
|
/* Configure the bootrom to boot to rcm. */
|
|
|
|
reg::Write(PMC + APBDEV_PMC_SCRATCH0, 0x2);
|
|
|
|
|
|
|
|
/* Reboot. */
|
|
|
|
PerformPmcReboot();
|
|
|
|
}
|
|
|
|
|
|
|
|
void PerformUserRebootToPayload() {
|
|
|
|
/* Load our reboot stub to iram. */
|
|
|
|
LoadRebootStub(RebootStubAction_JumpToPayload);
|
|
|
|
|
|
|
|
/* Reboot. */
|
|
|
|
PerformPmcReboot();
|
|
|
|
}
|
|
|
|
|
2020-11-15 21:58:13 +01:00
|
|
|
void PerformUserRebootToFatalError() {
|
|
|
|
if (fuse::GetSocType() == fuse::SocType_Erista) {
|
|
|
|
/* On Erista, we reboot to fatal error by jumping to fusee primary's handler. */
|
|
|
|
return PerformUserRebootToPayload();
|
|
|
|
} else /* if (fuse::GetSocType() == fuse::SocType_Mariko) */ {
|
|
|
|
/* TODO: Send a SGI FIQ to the other CPUs, so that user code stops executing. */
|
|
|
|
|
|
|
|
/* TODO: On cores other than 3, halt/wfi. */
|
|
|
|
|
2020-11-16 23:32:26 +01:00
|
|
|
/* Map Dram for the mariko program. */
|
|
|
|
MapDramForMarikoProgram();
|
|
|
|
|
2020-11-15 21:58:13 +01:00
|
|
|
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();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-06-08 18:02:50 +02:00
|
|
|
void PerformUserShutDown() {
|
|
|
|
/* Load our reboot stub to iram. */
|
|
|
|
LoadRebootStub(RebootStubAction_ShutDown);
|
|
|
|
|
|
|
|
/* Reboot. */
|
|
|
|
PerformPmcReboot();
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|