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Atmosphere/exosphere2/program/source/secmon_interrupt_handler.cpp
Michael Scire f66b41c027 exo2: Initial work on the exosphere rewrite.
exo2: Implement uncompressor stub and boot code up to Main().

exo2: implement some more init (uart/gic)

exo2: implement more of init

exo2: improve reg api, add keyslot flag setters

exo2: implement se aes decryption/enc

exo2: fix bugs in loader stub/mmu mappings

exo2: start skeletoning bootconfig/global context types

arch: fix makefile flags

exo2: implement through master key derivation

exo2: implement device master keygen

exo2: more init through start of SetupSocSecurity

exo2: implement pmc secure scratch management

se: implement sticky bit validation

libexosphere: fix building for arm32

libexo: fix makefile flags

libexo: support building for arm64/arm

sc7fw: skeleton binary

sc7fw: skeleton a little more

sc7fw: implement all non-dram functionality

exo2: fix DivideUp error

sc7fw: implement more dram code, fix reg library errors

sc7fw: complete sc7fw impl.

exo2: skeleton the rest of SetupSocSecurity

exo2: implement fiq interrupt handler

exo2: implement all exception handlers

exo2: skeleton the entire smc api, implement the svc invoker

exo2: implement rest of SetupSocSecurity

exo2: correct slave security errors

exo2: fix register definition

exo2: minor fixes
2020-06-14 22:07:45 -07:00

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2 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_interrupt_handler.hpp"
#include "secmon_error.hpp"
namespace ams::secmon {
namespace {
constexpr inline int InterruptHandlersMax = 4;
constinit InterruptHandler g_handlers[InterruptHandlersMax] = {};
constinit int g_interrupt_ids[InterruptHandlersMax] = {};
}
void SetInterruptHandler(int interrupt_id, InterruptHandler handler) {
for (int i = 0; i < InterruptHandlersMax; ++i) {
if (g_interrupt_ids[i] == 0) {
g_interrupt_ids[i] = interrupt_id;
g_handlers[i] = handler;
return;
}
}
AMS_ABORT("Failed to register interrupt handler");
}
void HandleInterrupt() {
/* Get the interrupt id. */
const int interrupt_id = gic::GetInterruptRequestId();
if (interrupt_id >= gic::InterruptCount) {
/* Invalid interrupt number, just return. */
return;
}
/* Check each handler. */
for (int i = 0; i < InterruptHandlersMax; ++i) {
if (g_interrupt_ids[i] == interrupt_id) {
/* Invoke the handler. */
g_handlers[i]();
gic::SetEndOfInterrupt(interrupt_id);
return;
}
}
AMS_ABORT("Failed to find interrupt handler.");
}
}