mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2025-11-16 17:11:18 +01:00
3bc1951820
NOTE: This work is not yet fully complete; kernel is done, but it was taking an exceedingly long time to get through libstratosphere. Thus, I've temporarily added -Wno-error=unused-result for libstratosphere/stratosphere. All warnings should be fixed to do the same thing Nintendo does as relevant, but this is taking a phenomenally long time and is not actually the most important work to do, so it can be put off for some time to prioritize other tasks for 21.0.0 support.
182 lines
11 KiB
C++
182 lines
11 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern {
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namespace {
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KDynamicPageManager g_resource_manager_page_manager;
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template<typename T>
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ALWAYS_INLINE void PrintMemoryRegion(const char *prefix, const T &extents) {
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static_assert(std::is_same<decltype(extents.GetAddress()), uintptr_t>::value);
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static_assert(std::is_same<decltype(extents.GetLastAddress()), uintptr_t>::value);
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if constexpr (std::is_same<uintptr_t, unsigned int>::value) {
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MESOSPHERE_LOG("%-24s0x%08x - 0x%08x\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else if constexpr (std::is_same<uintptr_t, unsigned long>::value) {
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MESOSPHERE_LOG("%-24s0x%016lx - 0x%016lx\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else if constexpr (std::is_same<uintptr_t, unsigned long long>::value) {
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MESOSPHERE_LOG("%-24s0x%016llx - 0x%016llx\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else {
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static_assert(!std::is_same<T, T>::value, "Unknown uintptr_t width!");
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}
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}
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}
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void Kernel::InitializeCoreLocalRegion(s32 core_id) {
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/* The core local region no longer exists, so just clear the current thread. */
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AMS_UNUSED(core_id);
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SetCurrentThread(nullptr);
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}
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void Kernel::InitializeMainAndIdleThreads(s32 core_id) {
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/* This function wants to setup the main thread and the idle thread. */
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KThread *main_thread = std::addressof(Kernel::GetMainThread(core_id));
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void *main_thread_stack = GetVoidPointer(KMemoryLayout::GetMainStackTopAddress(core_id));
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KThread *idle_thread = std::addressof(Kernel::GetIdleThread(core_id));
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void *idle_thread_stack = GetVoidPointer(KMemoryLayout::GetIdleStackTopAddress(core_id));
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KAutoObject::Create<KThread>(main_thread);
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KAutoObject::Create<KThread>(idle_thread);
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MESOSPHERE_R_ABORT_UNLESS(main_thread->Initialize(nullptr, 0, main_thread_stack, 0, KThread::MainThreadPriority, core_id, nullptr, KThread::ThreadType_Main));
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MESOSPHERE_R_ABORT_UNLESS(idle_thread->Initialize(nullptr, 0, idle_thread_stack, 0, KThread::IdleThreadPriority, core_id, nullptr, KThread::ThreadType_Main));
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/* Set the current thread to be the main thread, and we have no processes running yet. */
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SetCurrentThread(main_thread);
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/* Initialize the interrupt manager, hardware timer, and scheduler */
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GetInterruptManager().Initialize(core_id);
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GetHardwareTimer().Initialize();
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GetScheduler().Initialize(idle_thread);
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}
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void Kernel::InitializeResourceManagers(KVirtualAddress address, size_t size) {
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/* Ensure that the buffer is suitable for our use. */
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MESOSPHERE_ABORT_UNLESS(util::IsAligned(GetInteger(address), PageSize));
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MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, PageSize));
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/* Ensure that we have space for our reference counts. */
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const size_t rc_size = util::AlignUp(KPageTableSlabHeap::CalculateReferenceCountSize(size), PageSize);
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MESOSPHERE_ABORT_UNLESS(rc_size < size);
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size -= rc_size;
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/* Determine dynamic page managers. */
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KDynamicPageManager * const app_dynamic_page_manager = nullptr;
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KDynamicPageManager * const sys_dynamic_page_manager = KTargetSystem::IsDynamicResourceLimitsEnabled() ? std::addressof(g_resource_manager_page_manager) : nullptr;
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/* Initialize the resource managers' shared page manager. */
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MESOSPHERE_R_ABORT_UNLESS(g_resource_manager_page_manager.Initialize(address, size, std::max<size_t>(PageSize, KPageBufferSlabHeap::BufferSize)));
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/* Initialize the KPageBuffer slab heap. */
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KPageBuffer::InitializeSlabHeap(g_resource_manager_page_manager);
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/* Initialize the block info heap. */
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s_block_info_heap.Initialize(std::addressof(g_resource_manager_page_manager), BlockInfoSlabHeapSize);
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/* Initialize the system slab managers. */
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s_sys_block_info_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_block_info_heap));
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s_sys_memory_block_heap.Initialize(std::addressof(g_resource_manager_page_manager), SystemMemoryBlockSlabHeapSize);
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s_sys_memory_block_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_sys_memory_block_heap));
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/* Initialize the application slab managers. */
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s_app_block_info_manager.Initialize(app_dynamic_page_manager, std::addressof(s_block_info_heap));
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s_app_memory_block_heap.Initialize(std::addressof(g_resource_manager_page_manager), ApplicationMemoryBlockSlabHeapSize);
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s_app_memory_block_manager.Initialize(app_dynamic_page_manager, std::addressof(s_app_memory_block_heap));
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/* Reserve all but a fixed number of remaining pages for the page table heap. */
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const size_t num_pt_pages = g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed() - ReservedDynamicPageCount;
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s_page_table_heap.Initialize(std::addressof(g_resource_manager_page_manager), num_pt_pages, GetPointer<KPageTableManager::RefCount>(address + size));
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/* Create and initialize the system system resource. */
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s_sys_page_table_manager.Initialize(sys_dynamic_page_manager, std::addressof(s_page_table_heap));
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KAutoObject::Create<KSystemResource>(std::addressof(s_sys_system_resource));
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s_sys_system_resource.SetManagers(s_sys_memory_block_manager, s_sys_block_info_manager, s_sys_page_table_manager);
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/* Create and initialize the application system resource. */
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s_app_page_table_manager.Initialize(app_dynamic_page_manager, std::addressof(s_page_table_heap));
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KAutoObject::Create<KSystemResource>(std::addressof(s_app_system_resource));
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s_app_system_resource.SetManagers(s_app_memory_block_manager, s_app_block_info_manager, s_app_page_table_manager);
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/* Check that we have the correct number of dynamic pages available. */
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MESOSPHERE_ABORT_UNLESS(g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed() == ReservedDynamicPageCount);
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}
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void Kernel::PrintLayout() {
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const auto target_fw = kern::GetTargetFirmware();
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/* Print out the kernel version. */
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MESOSPHERE_LOG("Horizon Kernel (Mesosphere)\n");
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MESOSPHERE_LOG("Built: %s %s\n", __DATE__, __TIME__);
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MESOSPHERE_LOG("Atmosphere version: %d.%d.%d-%s\n", ATMOSPHERE_RELEASE_VERSION, ATMOSPHERE_GIT_REVISION);
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MESOSPHERE_LOG("Target Firmware: %d.%d.%d\n", (target_fw >> 24) & 0xFF, (target_fw >> 16) & 0xFF, (target_fw >> 8) & 0xFF);
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MESOSPHERE_LOG("Supported OS version: %d.%d.%d\n", ATMOSPHERE_SUPPORTED_HOS_VERSION_MAJOR, ATMOSPHERE_SUPPORTED_HOS_VERSION_MINOR, ATMOSPHERE_SUPPORTED_HOS_VERSION_MICRO);
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MESOSPHERE_LOG("\n");
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/* Print relative memory usage. */
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const auto [total, kernel] = KMemoryLayout::GetTotalAndKernelMemorySizes();
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MESOSPHERE_LOG("Kernel Memory Usage: %zu/%zu MB\n", util::AlignUp(kernel, 1_MB) / 1_MB, util::AlignUp(total, 1_MB) / 1_MB);
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MESOSPHERE_LOG("\n");
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/* Print out important memory layout regions. */
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MESOSPHERE_LOG("Virtual Memory Layout\n");
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PrintMemoryRegion(" KernelRegion", KMemoryLayout::GetKernelRegionExtents());
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PrintMemoryRegion(" Code", KMemoryLayout::GetKernelCodeRegionExtents());
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PrintMemoryRegion(" Stack", KMemoryLayout::GetKernelStackRegionExtents());
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PrintMemoryRegion(" Misc", KMemoryLayout::GetKernelMiscRegionExtents());
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PrintMemoryRegion(" Slab", KMemoryLayout::GetKernelSlabRegionExtents());
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PrintMemoryRegion(" LinearRegion", KMemoryLayout::GetLinearRegionVirtualExtents());
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MESOSPHERE_LOG("\n");
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MESOSPHERE_LOG("Physical Memory Layout\n");
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PrintMemoryRegion(" LinearRegion", KMemoryLayout::GetLinearRegionPhysicalExtents());
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PrintMemoryRegion(" CarveoutRegion", KMemoryLayout::GetCarveoutRegionExtents());
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MESOSPHERE_LOG("\n");
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PrintMemoryRegion(" KernelRegion", KMemoryLayout::GetKernelRegionPhysicalExtents());
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PrintMemoryRegion(" Code", KMemoryLayout::GetKernelCodeRegionPhysicalExtents());
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PrintMemoryRegion(" Slab", KMemoryLayout::GetKernelSlabRegionPhysicalExtents());
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if constexpr (KSystemControl::SecureAppletMemorySize > 0) {
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PrintMemoryRegion(" SecureApplet", KMemoryLayout::GetKernelSecureAppletMemoryRegionPhysicalExtents());
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}
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PrintMemoryRegion(" PageTableHeap", KMemoryLayout::GetKernelPageTableHeapRegionPhysicalExtents());
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PrintMemoryRegion(" InitPageTable", KMemoryLayout::GetKernelInitPageTableRegionPhysicalExtents());
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if constexpr (IsKTraceEnabled) {
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MESOSPHERE_LOG(" DebugRegion\n");
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PrintMemoryRegion(" Trace Buffer", KMemoryLayout::GetKernelTraceBufferRegionPhysicalExtents());
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}
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PrintMemoryRegion(" MemoryPoolRegion", KMemoryLayout::GetKernelPoolPartitionRegionPhysicalExtents());
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if (GetTargetFirmware() >= TargetFirmware_5_0_0) {
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PrintMemoryRegion(" Management", KMemoryLayout::GetKernelPoolManagementRegionPhysicalExtents());
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PrintMemoryRegion(" System", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents());
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if (KMemoryLayout::HasKernelSystemNonSecurePoolRegion()) {
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PrintMemoryRegion(" SystemUnsafe", KMemoryLayout::GetKernelSystemNonSecurePoolRegionPhysicalExtents());
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}
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if (KMemoryLayout::HasKernelAppletPoolRegion()) {
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PrintMemoryRegion(" Applet", KMemoryLayout::GetKernelAppletPoolRegionPhysicalExtents());
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}
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if (KMemoryLayout::HasKernelApplicationPoolRegion()) {
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PrintMemoryRegion(" Application", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents());
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}
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} else {
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PrintMemoryRegion(" Management", KMemoryLayout::GetKernelPoolManagementRegionPhysicalExtents());
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PrintMemoryRegion(" Secure", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents());
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PrintMemoryRegion(" Unsafe", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents());
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}
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MESOSPHERE_LOG("\n");
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}
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}
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