mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 12:51:13 +00:00
227 lines
16 KiB
C++
227 lines
16 KiB
C++
/*
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* Copyright (c) 2018-2020 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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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/init/kern_init_page_table_select.hpp>
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#include <mesosphere/kern_k_memory_region.hpp>
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#if defined(ATMOSPHERE_BOARD_NINTENDO_NX)
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#include <mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp>
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#else
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#error "Unknown board for KMemoryLayout"
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#endif
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namespace ams::kern {
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constexpr size_t KernelAslrAlignment = 2_MB;
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constexpr size_t KernelVirtualAddressSpaceWidth = size_t(1ul) << 39ul;
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constexpr size_t KernelPhysicalAddressSpaceWidth = size_t(1ul) << 48ul;
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constexpr size_t KernelVirtualAddressSpaceBase = 0ul - KernelVirtualAddressSpaceWidth;
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constexpr size_t KernelVirtualAddressSpaceEnd = KernelVirtualAddressSpaceBase + (KernelVirtualAddressSpaceWidth - KernelAslrAlignment);
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constexpr size_t KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceEnd - 1ul;
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constexpr size_t KernelVirtualAddressSpaceSize = KernelVirtualAddressSpaceEnd - KernelVirtualAddressSpaceBase;
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constexpr size_t KernelPhysicalAddressSpaceBase = 0ul;
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constexpr size_t KernelPhysicalAddressSpaceEnd = KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceWidth;
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constexpr size_t KernelPhysicalAddressSpaceLast = KernelPhysicalAddressSpaceEnd - 1ul;
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constexpr size_t KernelPhysicalAddressSpaceSize = KernelPhysicalAddressSpaceEnd - KernelPhysicalAddressSpaceBase;
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constexpr size_t KernelPageTableHeapSize = init::KInitialPageTable::GetMaximumOverheadSize(kern::MainMemorySizeMax);
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constexpr size_t KernelInitialPageHeapSize = 128_KB;
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constexpr size_t KernelSlabHeapDataSize = 5_MB;
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constexpr size_t KernelSlabHeapGapsSize = 2_MB - 64_KB;
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constexpr size_t KernelSlabHeapGapsSizeDeprecated = 2_MB;
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constexpr size_t KernelSlabHeapSize = KernelSlabHeapDataSize + KernelSlabHeapGapsSize;
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/* NOTE: This is calculated from KThread slab counts, assuming KThread size <= 0x860. */
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constexpr size_t KernelSlabHeapAdditionalSize = 0x68000;
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constexpr size_t KernelResourceSize = KernelPageTableHeapSize + KernelInitialPageHeapSize + KernelSlabHeapSize;
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class KMemoryLayout {
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private:
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static /* constinit */ inline uintptr_t s_linear_phys_to_virt_diff;
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static /* constinit */ inline uintptr_t s_linear_virt_to_phys_diff;
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static /* constinit */ inline KMemoryRegionTree s_virtual_tree;
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static /* constinit */ inline KMemoryRegionTree s_physical_tree;
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static /* constinit */ inline KMemoryRegionTree s_virtual_linear_tree;
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static /* constinit */ inline KMemoryRegionTree s_physical_linear_tree;
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private:
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template<typename AddressType> requires IsKTypedAddress<AddressType>
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static ALWAYS_INLINE bool IsTypedAddress(const KMemoryRegion *®ion, AddressType address, KMemoryRegionTree &tree, KMemoryRegionType type) {
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/* Check if the cached region already contains the address. */
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if (region != nullptr && region->Contains(GetInteger(address))) {
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return true;
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}
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/* Find the containing region, and update the cache. */
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if (const KMemoryRegion *found = tree.Find(GetInteger(address)); found != nullptr && found->IsDerivedFrom(type)) {
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region = found;
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return true;
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} else {
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return false;
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}
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}
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template<typename AddressType> requires IsKTypedAddress<AddressType>
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static ALWAYS_INLINE bool IsTypedAddress(const KMemoryRegion *®ion, AddressType address, size_t size, KMemoryRegionTree &tree, KMemoryRegionType type) {
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/* Get the end of the checked region. */
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const uintptr_t last_address = GetInteger(address) + size - 1;
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/* Walk the tree to verify the region is correct. */
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const KMemoryRegion *cur = (region != nullptr && region->Contains(GetInteger(address))) ? region : tree.Find(GetInteger(address));
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while (cur != nullptr && cur->IsDerivedFrom(type)) {
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if (last_address <= cur->GetLastAddress()) {
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region = cur;
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return true;
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}
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cur = cur->GetNext();
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}
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return false;
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}
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template<typename AddressType> requires IsKTypedAddress<AddressType>
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static ALWAYS_INLINE const KMemoryRegion *Find(AddressType address, const KMemoryRegionTree &tree) {
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return tree.Find(GetInteger(address));
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}
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static ALWAYS_INLINE KMemoryRegion &Dereference(KMemoryRegion *region) {
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MESOSPHERE_INIT_ABORT_UNLESS(region != nullptr);
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return *region;
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}
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static ALWAYS_INLINE const KMemoryRegion &Dereference(const KMemoryRegion *region) {
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MESOSPHERE_INIT_ABORT_UNLESS(region != nullptr);
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return *region;
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}
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static ALWAYS_INLINE KVirtualAddress GetStackTopAddress(s32 core_id, KMemoryRegionType type) {
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const auto ®ion = Dereference(GetVirtualMemoryRegionTree().FindByTypeAndAttribute(type, static_cast<u32>(core_id)));
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MESOSPHERE_INIT_ABORT_UNLESS(region.GetEndAddress() != 0);
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return region.GetEndAddress();
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}
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public:
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static ALWAYS_INLINE KMemoryRegionTree &GetVirtualMemoryRegionTree() { return s_virtual_tree; }
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static ALWAYS_INLINE KMemoryRegionTree &GetPhysicalMemoryRegionTree() { return s_physical_tree; }
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static ALWAYS_INLINE KMemoryRegionTree &GetVirtualLinearMemoryRegionTree() { return s_virtual_linear_tree; }
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static ALWAYS_INLINE KMemoryRegionTree &GetPhysicalLinearMemoryRegionTree() { return s_physical_linear_tree; }
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static ALWAYS_INLINE KVirtualAddress GetLinearVirtualAddress(KPhysicalAddress address) { return GetInteger(address) + s_linear_phys_to_virt_diff; }
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static ALWAYS_INLINE KPhysicalAddress GetLinearPhysicalAddress(KVirtualAddress address) { return GetInteger(address) + s_linear_virt_to_phys_diff; }
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static NOINLINE const KMemoryRegion *Find(KVirtualAddress address) { return Find(address, GetVirtualMemoryRegionTree()); }
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static NOINLINE const KMemoryRegion *Find(KPhysicalAddress address) { return Find(address, GetPhysicalMemoryRegionTree()); }
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static NOINLINE const KMemoryRegion *FindLinear(KVirtualAddress address) { return Find(address, GetVirtualLinearMemoryRegionTree()); }
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static NOINLINE const KMemoryRegion *FindLinear(KPhysicalAddress address) { return Find(address, GetPhysicalLinearMemoryRegionTree()); }
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static NOINLINE KVirtualAddress GetMainStackTopAddress(s32 core_id) { return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscMainStack); }
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static NOINLINE KVirtualAddress GetIdleStackTopAddress(s32 core_id) { return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscIdleStack); }
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static NOINLINE KVirtualAddress GetExceptionStackTopAddress(s32 core_id) { return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscExceptionStack); }
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static NOINLINE KVirtualAddress GetSlabRegionAddress() { return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelSlab)).GetAddress(); }
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static NOINLINE const KMemoryRegion &GetDeviceRegion(KMemoryRegionType type) { return Dereference(GetPhysicalMemoryRegionTree().FindFirstDerived(type)); }
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static KPhysicalAddress GetDevicePhysicalAddress(KMemoryRegionType type) { return GetDeviceRegion(type).GetAddress(); }
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static KVirtualAddress GetDeviceVirtualAddress(KMemoryRegionType type) { return GetDeviceRegion(type).GetPairAddress(); }
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static NOINLINE const KMemoryRegion &GetPoolManagementRegion() { return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramPoolManagement)); }
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static NOINLINE const KMemoryRegion &GetPageTableHeapRegion() { return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramKernelPtHeap)); }
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static NOINLINE const KMemoryRegion &GetKernelStackRegion() { return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelStack)); }
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static NOINLINE const KMemoryRegion &GetTempRegion() { return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelTemp)); }
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static NOINLINE const KMemoryRegion &GetKernelTraceBufferRegion() { return Dereference(GetVirtualLinearMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramKernelTraceBuffer)); }
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static NOINLINE const KMemoryRegion &GetVirtualLinearRegion(KVirtualAddress address) { return Dereference(FindLinear(address)); }
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static NOINLINE const KMemoryRegion *GetPhysicalKernelTraceBufferRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_KernelTraceBuffer); }
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static NOINLINE const KMemoryRegion *GetPhysicalOnMemoryBootImageRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_OnMemoryBootImage); }
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static NOINLINE const KMemoryRegion *GetPhysicalDTBRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DTB); }
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static NOINLINE bool IsHeapPhysicalAddress(const KMemoryRegion *®ion, KPhysicalAddress address) { return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(), KMemoryRegionType_DramUserPool); }
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static NOINLINE bool IsHeapVirtualAddress(const KMemoryRegion *®ion, KVirtualAddress address) { return IsTypedAddress(region, address, GetVirtualLinearMemoryRegionTree(), KMemoryRegionType_VirtualDramUserPool); }
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static NOINLINE bool IsHeapPhysicalAddress(const KMemoryRegion *®ion, KPhysicalAddress address, size_t size) { return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(), KMemoryRegionType_DramUserPool); }
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static NOINLINE bool IsHeapVirtualAddress(const KMemoryRegion *®ion, KVirtualAddress address, size_t size) { return IsTypedAddress(region, address, size, GetVirtualLinearMemoryRegionTree(), KMemoryRegionType_VirtualDramUserPool); }
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static NOINLINE bool IsLinearMappedPhysicalAddress(const KMemoryRegion *®ion, KPhysicalAddress address) { return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(), static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped)); }
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static NOINLINE bool IsLinearMappedPhysicalAddress(const KMemoryRegion *®ion, KPhysicalAddress address, size_t size) { return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(), static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped)); }
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static NOINLINE std::tuple<size_t, size_t> GetTotalAndKernelMemorySizes() {
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size_t total_size = 0, kernel_size = 0;
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for (const auto ®ion : GetPhysicalMemoryRegionTree()) {
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if (region.IsDerivedFrom(KMemoryRegionType_Dram)) {
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total_size += region.GetSize();
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if (!region.IsDerivedFrom(KMemoryRegionType_DramUserPool)) {
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kernel_size += region.GetSize();
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}
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}
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}
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return std::make_tuple(total_size, kernel_size);
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}
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static void InitializeLinearMemoryRegionTrees(KPhysicalAddress aligned_linear_phys_start, KVirtualAddress linear_virtual_start);
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static size_t GetResourceRegionSizeForInit();
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static NOINLINE auto GetKernelRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel); }
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static NOINLINE auto GetKernelCodeRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelCode); }
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static NOINLINE auto GetKernelStackRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelStack); }
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static NOINLINE auto GetKernelMiscRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelMisc); }
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static NOINLINE auto GetKernelSlabRegionExtents() { return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelSlab); }
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static NOINLINE auto GetLinearRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionAttr_LinearMapped); }
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static NOINLINE auto GetLinearRegionVirtualExtents() {
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auto physical = GetLinearRegionPhysicalExtents();
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return KMemoryRegion(GetInteger(GetLinearVirtualAddress(physical.GetAddress())), physical.GetSize(), 0, KMemoryRegionType_None);
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}
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static NOINLINE auto GetMainMemoryPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Dram); }
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static NOINLINE auto GetCarveoutRegionExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionAttr_CarveoutProtected); }
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static NOINLINE auto GetKernelRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelBase); }
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static NOINLINE auto GetKernelCodeRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelCode); }
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static NOINLINE auto GetKernelSlabRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelSlab); }
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static NOINLINE auto GetKernelPageTableHeapRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelPtHeap); }
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static NOINLINE auto GetKernelInitPageTableRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelInitPt); }
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static NOINLINE auto GetKernelPoolManagementRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramPoolManagement); }
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static NOINLINE auto GetKernelPoolPartitionRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramPoolPartition); }
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static NOINLINE auto GetKernelSystemPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramSystemPool); }
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static NOINLINE auto GetKernelSystemNonSecurePoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramSystemNonSecurePool); }
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static NOINLINE auto GetKernelAppletPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramAppletPool); }
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static NOINLINE auto GetKernelApplicationPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramApplicationPool); }
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static NOINLINE auto GetKernelTraceBufferRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelTraceBuffer); }
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};
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namespace init {
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/* These should be generic, regardless of board. */
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void SetupPoolPartitionMemoryRegions();
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/* These may be implemented in a board-specific manner. */
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void SetupDevicePhysicalMemoryRegions();
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void SetupDramPhysicalMemoryRegions();
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}
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}
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