Atmosphere/libraries/libmesosphere/source/kern_main.cpp

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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 <mesosphere.hpp>
namespace ams::kern {
NORETURN void HorizonKernelMain(s32 core_id) {
/* Setup the Core Local Region, and note that we're initializing. */
Kernel::InitializeCoreLocalRegion(core_id);
Kernel::SetState(Kernel::State::Initializing);
/* Ensure that all cores get to this point before proceeding. */
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();
}
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if (core_id == 0) {
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/* Initialize KSystemControl. */
KSystemControl::Initialize();
/* Initialize the memory manager and the KPageBuffer slabheap. */
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{
const auto &metadata_region = KMemoryLayout::GetMetadataPoolRegion();
Kernel::GetMemoryManager().Initialize(metadata_region.GetAddress(), metadata_region.GetSize());
init::InitializeKPageBufferSlabHeap();
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}
/* Copy the Initial Process Binary to safe memory. */
CopyInitialProcessBinaryToKernelMemory();
/* Initialize the KObject Slab Heaps. */
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init::InitializeSlabHeaps();
/* Initialize the Dynamic Slab Heaps. */
{
const auto &pt_heap_region = KMemoryLayout::GetPageTableHeapRegion();
Kernel::InitializeResourceManagers(pt_heap_region.GetAddress(), pt_heap_region.GetSize());
}
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}
/* TODO: Implement more of Main() */
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cpu::SynchronizeAllCores();
while (true) { /* ... */ }
}
}