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kern: implement dpc + skeleton rest of main

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This commit is contained in:
Michael Scire 2020-02-07 19:16:09 -08:00
parent e9e949ec36
commit 1224ed8abe
14 changed files with 559 additions and 40 deletions
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87
libraries/libmesosphere/source/kern_main.cpp
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@ -17,6 +17,21 @@
namespace ams::kern {
namespace {
template<typename F>
ALWAYS_INLINE void DoOnEachCoreInOrder(s32 core_id, F f) {
cpu::SynchronizeAllCores();
for (size_t i = 0; i < cpu::NumCores; i++) {
if (static_cast<s32>(i) == core_id) {
f();
}
cpu::SynchronizeAllCores();
}
}
}
NORETURN void HorizonKernelMain(s32 core_id) {
/* Setup the Core Local Region, and note that we're initializing. */
Kernel::InitializeCoreLocalRegion(core_id);
@ -26,13 +41,9 @@ namespace ams::kern {
cpu::SynchronizeAllCores();
/* Initialize the main and idle thread for each core. */
/* Synchronize after each init to ensure the cores go in order. */
for (size_t i = 0; i < cpu::NumCores; i++) {
if (static_cast<s32>(i) == core_id) {
Kernel::InitializeMainAndIdleThreads(core_id);
}
cpu::SynchronizeAllCores();
}
DoOnEachCoreInOrder(core_id, [=]() ALWAYS_INLINE_LAMBDA {
Kernel::InitializeMainAndIdleThreads(core_id);
});
if (core_id == 0) {
/* Initialize KSystemControl. */
@ -58,8 +69,68 @@ namespace ams::kern {
}
}
/* TODO: Implement more of Main() */
/* Initialize the supervisor page table for each core. */
DoOnEachCoreInOrder(core_id, [=]() ALWAYS_INLINE_LAMBDA {
/* TODO: KPageTable::Initialize(); */
/* TODO: Kernel::GetSupervisorPageTable().Initialize(); */
});
/* Set ttbr0 for each core. */
DoOnEachCoreInOrder(core_id, [=]() ALWAYS_INLINE_LAMBDA {
/* TODO: SetTtbr0(); */
});
/* NOTE: Kernel calls on each core a nullsub here on retail kernel. */
/* Register the main/idle threads and initialize the interrupt task manager. */
DoOnEachCoreInOrder(core_id, [=]() ALWAYS_INLINE_LAMBDA {
KThread::Register(std::addressof(Kernel::GetMainThread(core_id)));
KThread::Register(std::addressof(Kernel::GetIdleThread(core_id)));
/* TODO: Kernel::GetInterruptTaskManager().Initialize(); */
});
/* Activate the scheduler and enable interrupts. */
DoOnEachCoreInOrder(core_id, [=]() ALWAYS_INLINE_LAMBDA {
Kernel::GetScheduler().Activate();
KInterruptManager::EnableInterrupts();
});
/* Initialize cpu interrupt threads. */
/* TODO cpu::InitializeInterruptThreads(core_id); */
/* Initialize the DPC manager. */
KDpcManager::Initialize();
cpu::SynchronizeAllCores();
/* Perform more core-0 specific initialization. */
if (core_id == 0) {
/* TODO: Initialize KWorkerThreadManager */
/* TODO: KSystemControl::InitializeSleepManagerAndAppletSecureMemory(); */
/* TODO: KDeviceAddressSpace::Initialize(); */
/* TODO: CreateAndRunInitialProcesses(); */
/* We're done initializing! */
Kernel::SetState(Kernel::State::Initialized);
/* TODO: KThread::ResumeThreadsSuspendedForInit(); */
}
cpu::SynchronizeAllCores();
/* Set the current thread priority to idle. */
GetCurrentThread().SetPriorityToIdle();
/* Exit the main thread. */
{
auto &main_thread = Kernel::GetMainThread(core_id);
main_thread.Open();
main_thread.Exit();
}
/* Main() is done, and we should never get to this point. */
MESOSPHERE_PANIC("Main Thread continued after exit.");
while (true) { /* ... */ }
}