Merge pull request #6099 from bunnei/derive-mem

Kernel Rework: Derive memory regions from board layout.

src/common/CMakeLists.txt

@@ -110,6 +110,7 @@ add_library(common STATIC
     cityhash.h
     common_funcs.h
     common_paths.h
+    common_sizes.h
     common_types.h
     concepts.h
     div_ceil.h

src/common/common_sizes.h

@@ -0,0 +1,43 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <limits>
+
+#include "common/common_types.h"
+
+namespace Common {
+
+enum : u64 {
+    Size_1_KB = 0x400ULL,
+    Size_64_KB = 64ULL * Size_1_KB,
+    Size_128_KB = 128ULL * Size_1_KB,
+    Size_1_MB = 0x100000ULL,
+    Size_2_MB = 2ULL * Size_1_MB,
+    Size_4_MB = 4ULL * Size_1_MB,
+    Size_5_MB = 5ULL * Size_1_MB,
+    Size_14_MB = 14ULL * Size_1_MB,
+    Size_32_MB = 32ULL * Size_1_MB,
+    Size_33_MB = 33ULL * Size_1_MB,
+    Size_128_MB = 128ULL * Size_1_MB,
+    Size_448_MB = 448ULL * Size_1_MB,
+    Size_507_MB = 507ULL * Size_1_MB,
+    Size_562_MB = 562ULL * Size_1_MB,
+    Size_1554_MB = 1554ULL * Size_1_MB,
+    Size_2048_MB = 2048ULL * Size_1_MB,
+    Size_2193_MB = 2193ULL * Size_1_MB,
+    Size_3285_MB = 3285ULL * Size_1_MB,
+    Size_4916_MB = 4916ULL * Size_1_MB,
+    Size_1_GB = 0x40000000ULL,
+    Size_2_GB = 2ULL * Size_1_GB,
+    Size_4_GB = 4ULL * Size_1_GB,
+    Size_6_GB = 6ULL * Size_1_GB,
+    Size_8_GB = 8ULL * Size_1_GB,
+    Size_64_GB = 64ULL * Size_1_GB,
+    Size_512_GB = 512ULL * Size_1_GB,
+    Size_Invalid = std::numeric_limits<u64>::max(),
+};
+
+} // namespace Common

src/core/CMakeLists.txt

@@ -141,6 +141,9 @@ add_library(core STATIC
     hardware_interrupt_manager.h
     hle/ipc.h
     hle/ipc_helpers.h
+    hle/kernel/board/nintendo/nx/k_system_control.cpp
+    hle/kernel/board/nintendo/nx/k_system_control.h
+    hle/kernel/board/nintendo/nx/secure_monitor.h
     hle/kernel/client_port.cpp
     hle/kernel/client_port.h
     hle/kernel/client_session.cpp
@@ -169,9 +172,13 @@ add_library(core STATIC
     hle/kernel/k_memory_block.h
     hle/kernel/k_memory_block_manager.cpp
     hle/kernel/k_memory_block_manager.h
+    hle/kernel/k_memory_layout.cpp
+    hle/kernel/k_memory_layout.board.nintendo_nx.cpp
     hle/kernel/k_memory_layout.h
     hle/kernel/k_memory_manager.cpp
     hle/kernel/k_memory_manager.h
+    hle/kernel/k_memory_region.h
+    hle/kernel/k_memory_region_type.h
     hle/kernel/k_page_bitmap.h
     hle/kernel/k_page_heap.cpp
     hle/kernel/k_page_heap.h
@@ -196,11 +203,11 @@ add_library(core STATIC
     hle/kernel/k_spin_lock.h
     hle/kernel/k_synchronization_object.cpp
     hle/kernel/k_synchronization_object.h
-    hle/kernel/k_system_control.cpp
     hle/kernel/k_system_control.h
     hle/kernel/k_thread.cpp
     hle/kernel/k_thread.h
     hle/kernel/k_thread_queue.h
+    hle/kernel/k_trace.h
     hle/kernel/k_writable_event.cpp
     hle/kernel/k_writable_event.h
     hle/kernel/kernel.cpp

src/core/hle/kernel/arch/arm64/k_memory_region_device_types.inc

@@ -0,0 +1,20 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+// All architectures must define NumArchitectureDeviceRegions.
+constexpr inline const auto NumArchitectureDeviceRegions = 3;
+
+constexpr inline const auto KMemoryRegionType_Uart =
+    KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 0);
+constexpr inline const auto KMemoryRegionType_InterruptCpuInterface =
+    KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 1)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap);
+constexpr inline const auto KMemoryRegionType_InterruptDistributor =
+    KMemoryRegionType_ArchDeviceBase.DeriveSparse(0, NumArchitectureDeviceRegions, 2)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap);
+static_assert(KMemoryRegionType_Uart.GetValue() == (0x1D));
+static_assert(KMemoryRegionType_InterruptCpuInterface.GetValue() ==
+              (0x2D | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_InterruptDistributor.GetValue() ==
+              (0x4D | KMemoryRegionAttr_NoUserMap));

src/core/hle/kernel/board/nintendo/nx/k_memory_region_device_types.inc

@@ -0,0 +1,52 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+// All architectures must define NumBoardDeviceRegions.
+constexpr inline const auto NumBoardDeviceRegions = 6;
+// UNUSED: .Derive(NumBoardDeviceRegions, 0);
+constexpr inline const auto KMemoryRegionType_MemoryController =
+    KMemoryRegionType_BoardDeviceBase.Derive(NumBoardDeviceRegions, 1)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap);
+constexpr inline const auto KMemoryRegionType_MemoryController1 =
+    KMemoryRegionType_BoardDeviceBase.Derive(NumBoardDeviceRegions, 2)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap);
+constexpr inline const auto KMemoryRegionType_MemoryController0 =
+    KMemoryRegionType_BoardDeviceBase.Derive(NumBoardDeviceRegions, 3)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap);
+constexpr inline const auto KMemoryRegionType_PowerManagementController =
+    KMemoryRegionType_BoardDeviceBase.Derive(NumBoardDeviceRegions, 4).DeriveTransition();
+constexpr inline const auto KMemoryRegionType_LegacyLpsDevices =
+    KMemoryRegionType_BoardDeviceBase.Derive(NumBoardDeviceRegions, 5);
+static_assert(KMemoryRegionType_MemoryController.GetValue() ==
+              (0x55 | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_MemoryController1.GetValue() ==
+              (0x65 | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_MemoryController0.GetValue() ==
+              (0x95 | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_PowerManagementController.GetValue() == (0x1A5));
+
+static_assert(KMemoryRegionType_LegacyLpsDevices.GetValue() == 0xC5);
+
+constexpr inline const auto NumLegacyLpsDevices = 7;
+constexpr inline const auto KMemoryRegionType_LegacyLpsExceptionVectors =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 0);
+constexpr inline const auto KMemoryRegionType_LegacyLpsIram =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 1);
+constexpr inline const auto KMemoryRegionType_LegacyLpsFlowController =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 2);
+constexpr inline const auto KMemoryRegionType_LegacyLpsPrimaryICtlr =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 3);
+constexpr inline const auto KMemoryRegionType_LegacyLpsSemaphore =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 4);
+constexpr inline const auto KMemoryRegionType_LegacyLpsAtomics =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 5);
+constexpr inline const auto KMemoryRegionType_LegacyLpsClkRst =
+    KMemoryRegionType_LegacyLpsDevices.Derive(NumLegacyLpsDevices, 6);
+static_assert(KMemoryRegionType_LegacyLpsExceptionVectors.GetValue() == 0x3C5);
+static_assert(KMemoryRegionType_LegacyLpsIram.GetValue() == 0x5C5);
+static_assert(KMemoryRegionType_LegacyLpsFlowController.GetValue() == 0x6C5);
+static_assert(KMemoryRegionType_LegacyLpsPrimaryICtlr.GetValue() == 0x9C5);
+static_assert(KMemoryRegionType_LegacyLpsSemaphore.GetValue() == 0xAC5);
+static_assert(KMemoryRegionType_LegacyLpsAtomics.GetValue() == 0xCC5);
+static_assert(KMemoryRegionType_LegacyLpsClkRst.GetValue() == 0x11C5);

src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp

@@ -0,0 +1,164 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <random>
+
+#include "common/common_sizes.h"
+#include "core/hle/kernel/board/nintendo/nx/k_system_control.h"
+#include "core/hle/kernel/board/nintendo/nx/secure_monitor.h"
+#include "core/hle/kernel/k_trace.h"
+
+namespace Kernel::Board::Nintendo::Nx {
+
+namespace impl {
+
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeVi = 0x2238 * 4 * 1024;
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeNvservices = 0x710 * 4 * 1024;
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeMisc = 0x80 * 4 * 1024;
+
+} // namespace impl
+
+constexpr const std::size_t RequiredNonSecureSystemMemorySize =
+    impl::RequiredNonSecureSystemMemorySizeVi + impl::RequiredNonSecureSystemMemorySizeNvservices +
+    impl::RequiredNonSecureSystemMemorySizeMisc;
+
+namespace {
+
+u32 GetMemoryModeForInit() {
+    return 0x01;
+}
+
+u32 GetMemorySizeForInit() {
+    return 0;
+}
+
+Smc::MemoryArrangement GetMemoryArrangeForInit() {
+    switch (GetMemoryModeForInit() & 0x3F) {
+    case 0x01:
+    default:
+        return Smc::MemoryArrangement_4GB;
+    case 0x02:
+        return Smc::MemoryArrangement_4GBForAppletDev;
+    case 0x03:
+        return Smc::MemoryArrangement_4GBForSystemDev;
+    case 0x11:
+        return Smc::MemoryArrangement_6GB;
+    case 0x12:
+        return Smc::MemoryArrangement_6GBForAppletDev;
+    case 0x21:
+        return Smc::MemoryArrangement_8GB;
+    }
+}
+} // namespace
+
+// Initialization.
+size_t KSystemControl::Init::GetIntendedMemorySize() {
+    switch (GetMemorySizeForInit()) {
+    case Smc::MemorySize_4GB:
+    default: // All invalid modes should go to 4GB.
+        return Common::Size_4_GB;
+    case Smc::MemorySize_6GB:
+        return Common::Size_6_GB;
+    case Smc::MemorySize_8GB:
+        return Common::Size_8_GB;
+    }
+}
+
+PAddr KSystemControl::Init::GetKernelPhysicalBaseAddress(u64 base_address) {
+    return base_address;
+}
+
+bool KSystemControl::Init::ShouldIncreaseThreadResourceLimit() {
+    return true;
+}
+
+std::size_t KSystemControl::Init::GetApplicationPoolSize() {
+    // Get the base pool size.
+    const size_t base_pool_size = []() -> size_t {
+        switch (GetMemoryArrangeForInit()) {
+        case Smc::MemoryArrangement_4GB:
+        default:
+            return Common::Size_3285_MB;
+        case Smc::MemoryArrangement_4GBForAppletDev:
+            return Common::Size_2048_MB;
+        case Smc::MemoryArrangement_4GBForSystemDev:
+            return Common::Size_3285_MB;
+        case Smc::MemoryArrangement_6GB:
+            return Common::Size_4916_MB;
+        case Smc::MemoryArrangement_6GBForAppletDev:
+            return Common::Size_3285_MB;
+        case Smc::MemoryArrangement_8GB:
+            return Common::Size_4916_MB;
+        }
+    }();
+
+    // Return (possibly) adjusted size.
+    return base_pool_size;
+}
+
+size_t KSystemControl::Init::GetAppletPoolSize() {
+    // Get the base pool size.
+    const size_t base_pool_size = []() -> size_t {
+        switch (GetMemoryArrangeForInit()) {
+        case Smc::MemoryArrangement_4GB:
+        default:
+            return Common::Size_507_MB;
+        case Smc::MemoryArrangement_4GBForAppletDev:
+            return Common::Size_1554_MB;
+        case Smc::MemoryArrangement_4GBForSystemDev:
+            return Common::Size_448_MB;
+        case Smc::MemoryArrangement_6GB:
+            return Common::Size_562_MB;
+        case Smc::MemoryArrangement_6GBForAppletDev:
+            return Common::Size_2193_MB;
+        case Smc::MemoryArrangement_8GB:
+            return Common::Size_2193_MB;
+        }
+    }();
+
+    // Return (possibly) adjusted size.
+    constexpr size_t ExtraSystemMemoryForAtmosphere = Common::Size_33_MB;
+    return base_pool_size - ExtraSystemMemoryForAtmosphere - KTraceBufferSize;
+}
+
+size_t KSystemControl::Init::GetMinimumNonSecureSystemPoolSize() {
+    // Verify that our minimum is at least as large as Nintendo's.
+    constexpr size_t MinimumSize = RequiredNonSecureSystemMemorySize;
+    static_assert(MinimumSize >= 0x29C8000);
+
+    return MinimumSize;
+}
+
+namespace {
+template <typename F>
+u64 GenerateUniformRange(u64 min, u64 max, F f) {
+    // Handle the case where the difference is too large to represent.
+    if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
+        return f();
+    }
+
+    // Iterate until we get a value in range.
+    const u64 range_size = ((max + 1) - min);
+    const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
+    while (true) {
+        if (const u64 rnd = f(); rnd < effective_max) {
+            return min + (rnd % range_size);
+        }
+    }
+}
+
+} // Anonymous namespace
+
+u64 KSystemControl::GenerateRandomU64() {
+    static std::random_device device;
+    static std::mt19937 gen(device());
+    static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
+    return distribution(gen);
+}
+
+u64 KSystemControl::GenerateRandomRange(u64 min, u64 max) {
+    return GenerateUniformRange(min, max, GenerateRandomU64);
+}
+
+} // namespace Kernel::Board::Nintendo::Nx

src/core/hle/kernel/board/nintendo/nx/k_system_control.h

@@ -0,0 +1,28 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Kernel::Board::Nintendo::Nx {
+
+class KSystemControl {
+public:
+    class Init {
+    public:
+        // Initialization.
+        static std::size_t GetIntendedMemorySize();
+        static PAddr GetKernelPhysicalBaseAddress(u64 base_address);
+        static bool ShouldIncreaseThreadResourceLimit();
+        static std::size_t GetApplicationPoolSize();
+        static std::size_t GetAppletPoolSize();
+        static std::size_t GetMinimumNonSecureSystemPoolSize();
+    };
+
+    static u64 GenerateRandomRange(u64 min, u64 max);
+    static u64 GenerateRandomU64();
+};
+
+} // namespace Kernel::Board::Nintendo::Nx

src/core/hle/kernel/board/nintendo/nx/secure_monitor.h

@@ -0,0 +1,26 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Kernel::Board::Nintendo::Nx::Smc {
+
+enum MemorySize {
+    MemorySize_4GB = 0,
+    MemorySize_6GB = 1,
+    MemorySize_8GB = 2,
+};
+
+enum MemoryArrangement {
+    MemoryArrangement_4GB = 0,
+    MemoryArrangement_4GBForAppletDev = 1,
+    MemoryArrangement_4GBForSystemDev = 2,
+    MemoryArrangement_6GB = 3,
+    MemoryArrangement_6GBForAppletDev = 4,
+    MemoryArrangement_8GB = 5,
+};
+
+} // namespace Kernel::Board::Nintendo::Nx::Smc

src/core/hle/kernel/k_address_space_info.cpp

@@ -5,45 +5,34 @@
 #include <array>
 
 #include "common/assert.h"
+#include "common/common_sizes.h"
 #include "core/hle/kernel/k_address_space_info.h"
 
 namespace Kernel {
 
 namespace {
 
-enum : u64 {
-    Size_1_MB = 0x100000,
-    Size_2_MB = 2 * Size_1_MB,
-    Size_128_MB = 128 * Size_1_MB,
-    Size_1_GB = 0x40000000,
-    Size_2_GB = 2 * Size_1_GB,
-    Size_4_GB = 4 * Size_1_GB,
-    Size_6_GB = 6 * Size_1_GB,
-    Size_64_GB = 64 * Size_1_GB,
-    Size_512_GB = 512 * Size_1_GB,
-    Invalid = std::numeric_limits<u64>::max(),
-};
-
 // clang-format off
 constexpr std::array<KAddressSpaceInfo, 13> AddressSpaceInfos{{
-   { .bit_width = 32, .address = Size_2_MB  , .size = Size_1_GB   - Size_2_MB  , .type = KAddressSpaceInfo::Type::MapSmall,    },
+   { .bit_width = 32, .address = Common::Size_2_MB   , .size = Common::Size_1_GB   - Common::Size_2_MB  , .type = KAddressSpaceInfo::Type::MapSmall, },
-   { .bit_width = 32, .address = Size_1_GB  , .size = Size_4_GB   - Size_1_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
+   { .bit_width = 32, .address = Common::Size_1_GB   , .size = Common::Size_4_GB   - Common::Size_1_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
-   { .bit_width = 32, .address = Invalid    , .size = Size_1_GB                , .type = KAddressSpaceInfo::Type::Heap,       },
+   { .bit_width = 32, .address = Common::Size_Invalid, .size = Common::Size_1_GB                        , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 32, .address = Invalid    , .size = Size_1_GB                , .type = KAddressSpaceInfo::Type::Alias,      },
+   { .bit_width = 32, .address = Common::Size_Invalid, .size = Common::Size_1_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 36, .address = Size_128_MB, .size = Size_2_GB   - Size_128_MB, .type = KAddressSpaceInfo::Type::MapSmall,    },
+   { .bit_width = 36, .address = Common::Size_128_MB , .size = Common::Size_2_GB   - Common::Size_128_MB, .type = KAddressSpaceInfo::Type::MapSmall, },
-   { .bit_width = 36, .address = Size_2_GB  , .size = Size_64_GB  - Size_2_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
+   { .bit_width = 36, .address = Common::Size_2_GB   , .size = Common::Size_64_GB  - Common::Size_2_GB  , .type = KAddressSpaceInfo::Type::MapLarge, },
-   { .bit_width = 36, .address = Invalid    , .size = Size_6_GB                , .type = KAddressSpaceInfo::Type::Heap,       },
+   { .bit_width = 36, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 36, .address = Invalid    , .size = Size_6_GB                , .type = KAddressSpaceInfo::Type::Alias,      },
+   { .bit_width = 36, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 39, .address = Size_128_MB, .size = Size_512_GB - Size_128_MB, .type = KAddressSpaceInfo::Type::Map39Bit, },
+   { .bit_width = 39, .address = Common::Size_128_MB , .size = Common::Size_512_GB - Common::Size_128_MB, .type = KAddressSpaceInfo::Type::Map39Bit, },
-   { .bit_width = 39, .address = Invalid    , .size = Size_64_GB               , .type = KAddressSpaceInfo::Type::MapSmall     },
+   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_64_GB                       , .type = KAddressSpaceInfo::Type::MapSmall  },
-   { .bit_width = 39, .address = Invalid    , .size = Size_6_GB                , .type = KAddressSpaceInfo::Type::Heap,       },
+   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_6_GB                        , .type = KAddressSpaceInfo::Type::Heap,     },
-   { .bit_width = 39, .address = Invalid    , .size = Size_64_GB               , .type = KAddressSpaceInfo::Type::Alias,      },
+   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_64_GB                       , .type = KAddressSpaceInfo::Type::Alias,    },
-   { .bit_width = 39, .address = Invalid    , .size = Size_2_GB                , .type = KAddressSpaceInfo::Type::Stack,      },
+   { .bit_width = 39, .address = Common::Size_Invalid, .size = Common::Size_2_GB                        , .type = KAddressSpaceInfo::Type::Stack,    },
 }};
 // clang-format on
 
 constexpr bool IsAllowedIndexForAddress(std::size_t index) {
-    return index < AddressSpaceInfos.size() && AddressSpaceInfos[index].address != Invalid;
+    return index < AddressSpaceInfos.size() &&
+           AddressSpaceInfos[index].address != Common::Size_Invalid;
 }
 
 using IndexArray =

src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp

@@ -0,0 +1,199 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/alignment.h"
+#include "core/hle/kernel/k_memory_layout.h"
+#include "core/hle/kernel/k_memory_manager.h"
+#include "core/hle/kernel/k_system_control.h"
+#include "core/hle/kernel/k_trace.h"
+
+namespace Kernel {
+
+namespace {
+
+constexpr size_t CarveoutAlignment = 0x20000;
+constexpr size_t CarveoutSizeMax = (512ULL * 1024 * 1024) - CarveoutAlignment;
+
+bool SetupPowerManagementControllerMemoryRegion(KMemoryLayout& memory_layout) {
+    // Above firmware 2.0.0, the PMC is not mappable.
+    return memory_layout.GetPhysicalMemoryRegionTree().Insert(
+               0x7000E000, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap) &&
+           memory_layout.GetPhysicalMemoryRegionTree().Insert(
+               0x7000E400, 0xC00,
+               KMemoryRegionType_PowerManagementController | KMemoryRegionAttr_NoUserMap);
+}
+
+void InsertPoolPartitionRegionIntoBothTrees(KMemoryLayout& memory_layout, size_t start, size_t size,
+                                            KMemoryRegionType phys_type,
+                                            KMemoryRegionType virt_type, u32& cur_attr) {
+    const u32 attr = cur_attr++;
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(start, size,
+                                                              static_cast<u32>(phys_type), attr));
+    const KMemoryRegion* phys = memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
+        static_cast<u32>(phys_type), attr);
+    ASSERT(phys != nullptr);
+    ASSERT(phys->GetEndAddress() != 0);
+    ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(phys->GetPairAddress(), size,
+                                                             static_cast<u32>(virt_type), attr));
+}
+
+} // namespace
+
+namespace Init {
+
+void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout) {
+    ASSERT(SetupPowerManagementControllerMemoryRegion(memory_layout));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x70019000, 0x1000, KMemoryRegionType_MemoryController | KMemoryRegionAttr_NoUserMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x7001C000, 0x1000, KMemoryRegionType_MemoryController0 | KMemoryRegionAttr_NoUserMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x7001D000, 0x1000, KMemoryRegionType_MemoryController1 | KMemoryRegionAttr_NoUserMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x50040000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x50041000, 0x1000,
+        KMemoryRegionType_InterruptDistributor | KMemoryRegionAttr_ShouldKernelMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x50042000, 0x1000,
+        KMemoryRegionType_InterruptCpuInterface | KMemoryRegionAttr_ShouldKernelMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x50043000, 0x1D000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+
+    // Map IRAM unconditionally, to support debug-logging-to-iram build config.
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x40000000, 0x40000, KMemoryRegionType_LegacyLpsIram | KMemoryRegionAttr_ShouldKernelMap));
+
+    // Above firmware 2.0.0, prevent mapping the bpmp exception vectors or the ipatch region.
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x6000F000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        0x6001DC00, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+}
+
+void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout) {
+    const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize();
+    const PAddr physical_memory_base_address =
+        KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress);
+
+    // Insert blocks into the tree.
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        physical_memory_base_address, intended_memory_size, KMemoryRegionType_Dram));
+    ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+        physical_memory_base_address, ReservedEarlyDramSize, KMemoryRegionType_DramReservedEarly));
+
+    // Insert the KTrace block at the end of Dram, if KTrace is enabled.
+    static_assert(!IsKTraceEnabled || KTraceBufferSize > 0);
+    if constexpr (IsKTraceEnabled) {
+        const PAddr ktrace_buffer_phys_addr =
+            physical_memory_base_address + intended_memory_size - KTraceBufferSize;
+        ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+            ktrace_buffer_phys_addr, KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer));
+    }
+}
+
+void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout) {
+    // Start by identifying the extents of the DRAM memory region.
+    const auto dram_extents = memory_layout.GetMainMemoryPhysicalExtents();
+    ASSERT(dram_extents.GetEndAddress() != 0);
+
+    // Determine the end of the pool region.
+    const u64 pool_end = dram_extents.GetEndAddress() - KTraceBufferSize;
+
+    // Find the start of the kernel DRAM region.
+    const KMemoryRegion* kernel_dram_region =
+        memory_layout.GetPhysicalMemoryRegionTree().FindFirstDerived(
+            KMemoryRegionType_DramKernelBase);
+    ASSERT(kernel_dram_region != nullptr);
+
+    const u64 kernel_dram_start = kernel_dram_region->GetAddress();
+    ASSERT(Common::IsAligned(kernel_dram_start, CarveoutAlignment));
+
+    // Find the start of the pool partitions region.
+    const KMemoryRegion* pool_partitions_region =
+        memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
+            KMemoryRegionType_DramPoolPartition, 0);
+    ASSERT(pool_partitions_region != nullptr);
+    const u64 pool_partitions_start = pool_partitions_region->GetAddress();
+
+    // Setup the pool partition layouts.
+    // On 5.0.0+, setup modern 4-pool-partition layout.
+
+    // Get Application and Applet pool sizes.
+    const size_t application_pool_size = KSystemControl::Init::GetApplicationPoolSize();
+    const size_t applet_pool_size = KSystemControl::Init::GetAppletPoolSize();
+    const size_t unsafe_system_pool_min_size =
+        KSystemControl::Init::GetMinimumNonSecureSystemPoolSize();
+
+    // Decide on starting addresses for our pools.
+    const u64 application_pool_start = pool_end - application_pool_size;
+    const u64 applet_pool_start = application_pool_start - applet_pool_size;
+    const u64 unsafe_system_pool_start = std::min(
+        kernel_dram_start + CarveoutSizeMax,
+        Common::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment));
+    const size_t unsafe_system_pool_size = applet_pool_start - unsafe_system_pool_start;
+
+    // We want to arrange application pool depending on where the middle of dram is.
+    const u64 dram_midpoint = (dram_extents.GetAddress() + dram_extents.GetEndAddress()) / 2;
+    u32 cur_pool_attr = 0;
+    size_t total_overhead_size = 0;
+    if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) {
+        InsertPoolPartitionRegionIntoBothTrees(
+            memory_layout, application_pool_start, application_pool_size,
+            KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+            cur_pool_attr);
+        total_overhead_size +=
+            KMemoryManager::CalculateManagementOverheadSize(application_pool_size);
+    } else {
+        const size_t first_application_pool_size = dram_midpoint - application_pool_start;
+        const size_t second_application_pool_size =
+            application_pool_start + application_pool_size - dram_midpoint;
+        InsertPoolPartitionRegionIntoBothTrees(
+            memory_layout, application_pool_start, first_application_pool_size,
+            KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+            cur_pool_attr);
+        InsertPoolPartitionRegionIntoBothTrees(
+            memory_layout, dram_midpoint, second_application_pool_size,
+            KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+            cur_pool_attr);
+        total_overhead_size +=
+            KMemoryManager::CalculateManagementOverheadSize(first_application_pool_size);
+        total_overhead_size +=
+            KMemoryManager::CalculateManagementOverheadSize(second_application_pool_size);
+    }
+
+    // Insert the applet pool.
+    InsertPoolPartitionRegionIntoBothTrees(memory_layout, applet_pool_start, applet_pool_size,
+                                           KMemoryRegionType_DramAppletPool,
+                                           KMemoryRegionType_VirtualDramAppletPool, cur_pool_attr);
+    total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(applet_pool_size);
+
+    // Insert the nonsecure system pool.
+    InsertPoolPartitionRegionIntoBothTrees(
+        memory_layout, unsafe_system_pool_start, unsafe_system_pool_size,
+        KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool,
+        cur_pool_attr);
+    total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size);
+
+    // Insert the pool management region.
+    total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(
+        (unsafe_system_pool_start - pool_partitions_start) - total_overhead_size);
+    const u64 pool_management_start = unsafe_system_pool_start - total_overhead_size;
+    const size_t pool_management_size = total_overhead_size;
+    u32 pool_management_attr = 0;
+    InsertPoolPartitionRegionIntoBothTrees(
+        memory_layout, pool_management_start, pool_management_size,
+        KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement,
+        pool_management_attr);
+
+    // Insert the system pool.
+    const u64 system_pool_size = pool_management_start - pool_partitions_start;
+    InsertPoolPartitionRegionIntoBothTrees(memory_layout, pool_partitions_start, system_pool_size,
+                                           KMemoryRegionType_DramSystemPool,
+                                           KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr);
+}
+
+} // namespace Init
+
+} // namespace Kernel

src/core/hle/kernel/k_memory_layout.cpp

@@ -0,0 +1,166 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <array>
+
+#include "common/alignment.h"
+#include "core/hle/kernel/k_memory_layout.h"
+#include "core/hle/kernel/k_system_control.h"
+
+namespace Kernel {
+
+namespace {
+
+template <typename... Args>
+KMemoryRegion* AllocateRegion(KMemoryRegionAllocator& memory_region_allocator, Args&&... args) {
+    return memory_region_allocator.Allocate(std::forward<Args>(args)...);
+}
+
+} // namespace
+
+KMemoryRegionTree::KMemoryRegionTree(KMemoryRegionAllocator& memory_region_allocator_)
+    : memory_region_allocator{memory_region_allocator_} {}
+
+void KMemoryRegionTree::InsertDirectly(u64 address, u64 last_address, u32 attr, u32 type_id) {
+    this->insert(*AllocateRegion(memory_region_allocator, address, last_address, attr, type_id));
+}
+
+bool KMemoryRegionTree::Insert(u64 address, size_t size, u32 type_id, u32 new_attr, u32 old_attr) {
+    // Locate the memory region that contains the address.
+    KMemoryRegion* found = this->FindModifiable(address);
+
+    // We require that the old attr is correct.
+    if (found->GetAttributes() != old_attr) {
+        return false;
+    }
+
+    // We further require that the region can be split from the old region.
+    const u64 inserted_region_end = address + size;
+    const u64 inserted_region_last = inserted_region_end - 1;
+    if (found->GetLastAddress() < inserted_region_last) {
+        return false;
+    }
+
+    // Further, we require that the type id is a valid transformation.
+    if (!found->CanDerive(type_id)) {
+        return false;
+    }
+
+    // Cache information from the region before we remove it.
+    const u64 old_address = found->GetAddress();
+    const u64 old_last = found->GetLastAddress();
+    const u64 old_pair = found->GetPairAddress();
+    const u32 old_type = found->GetType();
+
+    // Erase the existing region from the tree.
+    this->erase(this->iterator_to(*found));
+
+    // Insert the new region into the tree.
+    if (old_address == address) {
+        // Reuse the old object for the new region, if we can.
+        found->Reset(address, inserted_region_last, old_pair, new_attr, type_id);
+        this->insert(*found);
+    } else {
+        // If we can't re-use, adjust the old region.
+        found->Reset(old_address, address - 1, old_pair, old_attr, old_type);
+        this->insert(*found);
+
+        // Insert a new region for the split.
+        const u64 new_pair = (old_pair != std::numeric_limits<u64>::max())
+                                 ? old_pair + (address - old_address)
+                                 : old_pair;
+        this->insert(*AllocateRegion(memory_region_allocator, address, inserted_region_last,
+                                     new_pair, new_attr, type_id));
+    }
+
+    // If we need to insert a region after the region, do so.
+    if (old_last != inserted_region_last) {
+        const u64 after_pair = (old_pair != std::numeric_limits<u64>::max())
+                                   ? old_pair + (inserted_region_end - old_address)
+                                   : old_pair;
+        this->insert(*AllocateRegion(memory_region_allocator, inserted_region_end, old_last,
+                                     after_pair, old_attr, old_type));
+    }
+
+    return true;
+}
+
+VAddr KMemoryRegionTree::GetRandomAlignedRegion(size_t size, size_t alignment, u32 type_id) {
+    // We want to find the total extents of the type id.
+    const auto extents = this->GetDerivedRegionExtents(static_cast<KMemoryRegionType>(type_id));
+
+    // Ensure that our alignment is correct.
+    ASSERT(Common::IsAligned(extents.GetAddress(), alignment));
+
+    const u64 first_address = extents.GetAddress();
+    const u64 last_address = extents.GetLastAddress();
+
+    const u64 first_index = first_address / alignment;
+    const u64 last_index = last_address / alignment;
+
+    while (true) {
+        const u64 candidate =
+            KSystemControl::GenerateRandomRange(first_index, last_index) * alignment;
+
+        // Ensure that the candidate doesn't overflow with the size.
+        if (!(candidate < candidate + size)) {
+            continue;
+        }
+
+        const u64 candidate_last = candidate + size - 1;
+
+        // Ensure that the candidate fits within the region.
+        if (candidate_last > last_address) {
+            continue;
+        }
+
+        // Locate the candidate region, and ensure it fits and has the correct type id.
+        if (const auto& candidate_region = *this->Find(candidate);
+            !(candidate_last <= candidate_region.GetLastAddress() &&
+              candidate_region.GetType() == type_id)) {
+            continue;
+        }
+
+        return candidate;
+    }
+}
+
+KMemoryLayout::KMemoryLayout()
+    : virtual_tree{memory_region_allocator}, physical_tree{memory_region_allocator},
+      virtual_linear_tree{memory_region_allocator}, physical_linear_tree{memory_region_allocator} {}
+
+void KMemoryLayout::InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_start,
+                                                      VAddr linear_virtual_start) {
+    // Set static differences.
+    linear_phys_to_virt_diff = linear_virtual_start - aligned_linear_phys_start;
+    linear_virt_to_phys_diff = aligned_linear_phys_start - linear_virtual_start;
+
+    // Initialize linear trees.
+    for (auto& region : GetPhysicalMemoryRegionTree()) {
+        if (region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
+            GetPhysicalLinearMemoryRegionTree().InsertDirectly(
+                region.GetAddress(), region.GetLastAddress(), region.GetAttributes(),
+                region.GetType());
+        }
+    }
+
+    for (auto& region : GetVirtualMemoryRegionTree()) {
+        if (region.IsDerivedFrom(KMemoryRegionType_Dram)) {
+            GetVirtualLinearMemoryRegionTree().InsertDirectly(
+                region.GetAddress(), region.GetLastAddress(), region.GetAttributes(),
+                region.GetType());
+        }
+    }
+}
+
+size_t KMemoryLayout::GetResourceRegionSizeForInit() {
+    // Calculate resource region size based on whether we allow extra threads.
+    const bool use_extra_resources = KSystemControl::Init::ShouldIncreaseThreadResourceLimit();
+    size_t resource_region_size =
+        KernelResourceSize + (use_extra_resources ? KernelSlabHeapAdditionalSize : 0);
+
+    return resource_region_size;
+}
+
+} // namespace Kernel

src/core/hle/kernel/k_memory_layout.h

@@ -1,23 +1,69 @@
-// Copyright 2020 yuzu Emulator Project
+// Copyright 2021 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
 
+#include <utility>
+
+#include "common/alignment.h"
+#include "common/common_sizes.h"
 #include "common/common_types.h"
 #include "core/device_memory.h"
+#include "core/hle/kernel/k_memory_region.h"
+#include "core/hle/kernel/k_memory_region_type.h"
+#include "core/hle/kernel/memory_types.h"
 
 namespace Kernel {
 
-constexpr std::size_t KernelAslrAlignment = 2 * 1024 * 1024;
+constexpr std::size_t L1BlockSize = Common::Size_1_GB;
+constexpr std::size_t L2BlockSize = Common::Size_2_MB;
+
+constexpr std::size_t GetMaximumOverheadSize(std::size_t size) {
+    return (Common::DivideUp(size, L1BlockSize) + Common::DivideUp(size, L2BlockSize)) * PageSize;
+}
+
+constexpr std::size_t MainMemorySize = Common::Size_4_GB;
+constexpr std::size_t MainMemorySizeMax = Common::Size_8_GB;
+
+constexpr std::size_t ReservedEarlyDramSize = 0x60000;
+constexpr std::size_t DramPhysicalAddress = 0x80000000;
+
+constexpr std::size_t KernelAslrAlignment = Common::Size_2_MB;
 constexpr std::size_t KernelVirtualAddressSpaceWidth = 1ULL << 39;
 constexpr std::size_t KernelPhysicalAddressSpaceWidth = 1ULL << 48;
+
 constexpr std::size_t KernelVirtualAddressSpaceBase = 0ULL - KernelVirtualAddressSpaceWidth;
 constexpr std::size_t KernelVirtualAddressSpaceEnd =
     KernelVirtualAddressSpaceBase + (KernelVirtualAddressSpaceWidth - KernelAslrAlignment);
-constexpr std::size_t KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceEnd - 1;
+constexpr std::size_t KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceEnd - 1ULL;
 constexpr std::size_t KernelVirtualAddressSpaceSize =
     KernelVirtualAddressSpaceEnd - KernelVirtualAddressSpaceBase;
+constexpr std::size_t KernelVirtualAddressCodeBase = KernelVirtualAddressSpaceBase;
+constexpr std::size_t KernelVirtualAddressCodeSize = 0x62000;
+constexpr std::size_t KernelVirtualAddressCodeEnd =
+    KernelVirtualAddressCodeBase + KernelVirtualAddressCodeSize;
+
+constexpr std::size_t KernelPhysicalAddressSpaceBase = 0ULL;
+constexpr std::size_t KernelPhysicalAddressSpaceEnd =
+    KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceWidth;
+constexpr std::size_t KernelPhysicalAddressSpaceLast = KernelPhysicalAddressSpaceEnd - 1ULL;
+constexpr std::size_t KernelPhysicalAddressSpaceSize =
+    KernelPhysicalAddressSpaceEnd - KernelPhysicalAddressSpaceBase;
+constexpr std::size_t KernelPhysicalAddressCodeBase = DramPhysicalAddress + ReservedEarlyDramSize;
+
+constexpr std::size_t KernelPageTableHeapSize = GetMaximumOverheadSize(MainMemorySizeMax);
+constexpr std::size_t KernelInitialPageHeapSize = Common::Size_128_KB;
+
+constexpr std::size_t KernelSlabHeapDataSize = Common::Size_5_MB;
+constexpr std::size_t KernelSlabHeapGapsSize = Common::Size_2_MB - Common::Size_64_KB;
+constexpr std::size_t KernelSlabHeapSize = KernelSlabHeapDataSize + KernelSlabHeapGapsSize;
+
+// NOTE: This is calculated from KThread slab counts, assuming KThread size <= 0x860.
+constexpr std::size_t KernelSlabHeapAdditionalSize = 0x68000ULL;
+
+constexpr std::size_t KernelResourceSize =
+    KernelPageTableHeapSize + KernelInitialPageHeapSize + KernelSlabHeapSize;
 
 constexpr bool IsKernelAddressKey(VAddr key) {
     return KernelVirtualAddressSpaceBase <= key && key <= KernelVirtualAddressSpaceLast;
@@ -27,64 +73,327 @@ constexpr bool IsKernelAddress(VAddr address) {
     return KernelVirtualAddressSpaceBase <= address && address < KernelVirtualAddressSpaceEnd;
 }
 
-class KMemoryRegion final {
-    friend class KMemoryLayout;
-
-public:
-    constexpr PAddr StartAddress() const {
-        return start_address;
-    }
-
-    constexpr PAddr EndAddress() const {
-        return end_address;
-    }
-
-private:
-    constexpr KMemoryRegion() = default;
-    constexpr KMemoryRegion(PAddr start_address, PAddr end_address)
-        : start_address{start_address}, end_address{end_address} {}
-
-    const PAddr start_address{};
-    const PAddr end_address{};
-};
-
 class KMemoryLayout final {
 public:
-    constexpr const KMemoryRegion& Application() const {
+    KMemoryLayout();
-        return application;
+
+    KMemoryRegionTree& GetVirtualMemoryRegionTree() {
+        return virtual_tree;
+    }
+    const KMemoryRegionTree& GetVirtualMemoryRegionTree() const {
+        return virtual_tree;
+    }
+    KMemoryRegionTree& GetPhysicalMemoryRegionTree() {
+        return physical_tree;
+    }
+    const KMemoryRegionTree& GetPhysicalMemoryRegionTree() const {
+        return physical_tree;
+    }
+    KMemoryRegionTree& GetVirtualLinearMemoryRegionTree() {
+        return virtual_linear_tree;
+    }
+    const KMemoryRegionTree& GetVirtualLinearMemoryRegionTree() const {
+        return virtual_linear_tree;
+    }
+    KMemoryRegionTree& GetPhysicalLinearMemoryRegionTree() {
+        return physical_linear_tree;
+    }
+    const KMemoryRegionTree& GetPhysicalLinearMemoryRegionTree() const {
+        return physical_linear_tree;
     }
 
-    constexpr const KMemoryRegion& Applet() const {
+    VAddr GetLinearVirtualAddress(PAddr address) const {
-        return applet;
+        return address + linear_phys_to_virt_diff;
+    }
+    PAddr GetLinearPhysicalAddress(VAddr address) const {
+        return address + linear_virt_to_phys_diff;
     }
 
-    constexpr const KMemoryRegion& System() const {
+    const KMemoryRegion* FindVirtual(VAddr address) const {
-        return system;
+        return Find(address, GetVirtualMemoryRegionTree());
+    }
+    const KMemoryRegion* FindPhysical(PAddr address) const {
+        return Find(address, GetPhysicalMemoryRegionTree());
     }
 
-    static constexpr KMemoryLayout GetDefaultLayout() {
+    const KMemoryRegion* FindVirtualLinear(VAddr address) const {
-        constexpr std::size_t application_size{0xcd500000};
+        return Find(address, GetVirtualLinearMemoryRegionTree());
-        constexpr std::size_t applet_size{0x1fb00000};
+    }
-        constexpr PAddr application_start_address{Core::DramMemoryMap::End - application_size};
+    const KMemoryRegion* FindPhysicalLinear(PAddr address) const {
-        constexpr PAddr application_end_address{Core::DramMemoryMap::End};
+        return Find(address, GetPhysicalLinearMemoryRegionTree());
-        constexpr PAddr applet_start_address{application_start_address - applet_size};
+    }
-        constexpr PAddr applet_end_address{applet_start_address + applet_size};
+
-        constexpr PAddr system_start_address{Core::DramMemoryMap::SlabHeapEnd};
+    VAddr GetMainStackTopAddress(s32 core_id) const {
-        constexpr PAddr system_end_address{applet_start_address};
+        return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscMainStack);
-        return {application_start_address, application_end_address, applet_start_address,
+    }
-                applet_end_address,        system_start_address,    system_end_address};
+    VAddr GetIdleStackTopAddress(s32 core_id) const {
+        return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscIdleStack);
+    }
+    VAddr GetExceptionStackTopAddress(s32 core_id) const {
+        return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscExceptionStack);
+    }
+
+    VAddr GetSlabRegionAddress() const {
+        return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelSlab))
+            .GetAddress();
+    }
+
+    const KMemoryRegion& GetDeviceRegion(KMemoryRegionType type) const {
+        return Dereference(GetPhysicalMemoryRegionTree().FindFirstDerived(type));
+    }
+    PAddr GetDevicePhysicalAddress(KMemoryRegionType type) const {
+        return GetDeviceRegion(type).GetAddress();
+    }
+    VAddr GetDeviceVirtualAddress(KMemoryRegionType type) const {
+        return GetDeviceRegion(type).GetPairAddress();
+    }
+
+    const KMemoryRegion& GetPoolManagementRegion() const {
+        return Dereference(
+            GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramPoolManagement));
+    }
+    const KMemoryRegion& GetPageTableHeapRegion() const {
+        return Dereference(
+            GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramKernelPtHeap));
+    }
+    const KMemoryRegion& GetKernelStackRegion() const {
+        return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelStack));
+    }
+    const KMemoryRegion& GetTempRegion() const {
+        return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelTemp));
+    }
+
+    const KMemoryRegion& GetKernelTraceBufferRegion() const {
+        return Dereference(GetVirtualLinearMemoryRegionTree().FindByType(
+            KMemoryRegionType_VirtualDramKernelTraceBuffer));
+    }
+
+    const KMemoryRegion& GetVirtualLinearRegion(VAddr address) const {
+        return Dereference(FindVirtualLinear(address));
+    }
+
+    const KMemoryRegion* GetPhysicalKernelTraceBufferRegion() const {
+        return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_KernelTraceBuffer);
+    }
+    const KMemoryRegion* GetPhysicalOnMemoryBootImageRegion() const {
+        return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_OnMemoryBootImage);
+    }
+    const KMemoryRegion* GetPhysicalDTBRegion() const {
+        return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DTB);
+    }
+
+    bool IsHeapPhysicalAddress(const KMemoryRegion*& region, PAddr address) const {
+        return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(),
+                              KMemoryRegionType_DramUserPool);
+    }
+    bool IsHeapVirtualAddress(const KMemoryRegion*& region, VAddr address) const {
+        return IsTypedAddress(region, address, GetVirtualLinearMemoryRegionTree(),
+                              KMemoryRegionType_VirtualDramUserPool);
+    }
+
+    bool IsHeapPhysicalAddress(const KMemoryRegion*& region, PAddr address, size_t size) const {
+        return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(),
+                              KMemoryRegionType_DramUserPool);
+    }
+    bool IsHeapVirtualAddress(const KMemoryRegion*& region, VAddr address, size_t size) const {
+        return IsTypedAddress(region, address, size, GetVirtualLinearMemoryRegionTree(),
+                              KMemoryRegionType_VirtualDramUserPool);
+    }
+
+    bool IsLinearMappedPhysicalAddress(const KMemoryRegion*& region, PAddr address) const {
+        return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(),
+                              static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped));
+    }
+    bool IsLinearMappedPhysicalAddress(const KMemoryRegion*& region, PAddr address,
+                                       size_t size) const {
+        return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(),
+                              static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped));
+    }
+
+    std::pair<size_t, size_t> GetTotalAndKernelMemorySizes() const {
+        size_t total_size = 0, kernel_size = 0;
+        for (const auto& region : GetPhysicalMemoryRegionTree()) {
+            if (region.IsDerivedFrom(KMemoryRegionType_Dram)) {
+                total_size += region.GetSize();
+                if (!region.IsDerivedFrom(KMemoryRegionType_DramUserPool)) {
+                    kernel_size += region.GetSize();
+                }
+            }
+        }
+        return std::make_pair(total_size, kernel_size);
+    }
+
+    void InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_start,
+                                           VAddr linear_virtual_start);
+    static size_t GetResourceRegionSizeForInit();
+
+    auto GetKernelRegionExtents() const {
+        return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel);
+    }
+    auto GetKernelCodeRegionExtents() const {
+        return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelCode);
+    }
+    auto GetKernelStackRegionExtents() const {
+        return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelStack);
+    }
+    auto GetKernelMiscRegionExtents() const {
+        return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelMisc);
+    }
+    auto GetKernelSlabRegionExtents() const {
+        return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelSlab);
+    }
+
+    auto GetLinearRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionAttr_LinearMapped);
+    }
+
+    auto GetLinearRegionVirtualExtents() const {
+        const auto physical = GetLinearRegionPhysicalExtents();
+        return KMemoryRegion(GetLinearVirtualAddress(physical.GetAddress()),
+                             GetLinearVirtualAddress(physical.GetLastAddress()), 0,
+                             KMemoryRegionType_None);
+    }
+
+    auto GetMainMemoryPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Dram);
+    }
+    auto GetCarveoutRegionExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionAttr_CarveoutProtected);
+    }
+
+    auto GetKernelRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelBase);
+    }
+    auto GetKernelCodeRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelCode);
+    }
+    auto GetKernelSlabRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelSlab);
+    }
+    auto GetKernelPageTableHeapRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelPtHeap);
+    }
+    auto GetKernelInitPageTableRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelInitPt);
+    }
+
+    auto GetKernelPoolManagementRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramPoolManagement);
+    }
+    auto GetKernelPoolPartitionRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramPoolPartition);
+    }
+    auto GetKernelSystemPoolRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramSystemPool);
+    }
+    auto GetKernelSystemNonSecurePoolRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramSystemNonSecurePool);
+    }
+    auto GetKernelAppletPoolRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramAppletPool);
+    }
+    auto GetKernelApplicationPoolRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramApplicationPool);
+    }
+
+    auto GetKernelTraceBufferRegionPhysicalExtents() const {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_KernelTraceBuffer);
     }
 
 private:
-    constexpr KMemoryLayout(PAddr application_start_address, std::size_t application_size,
+    template <typename AddressType>
-                            PAddr applet_start_address, std::size_t applet_size,
+    static bool IsTypedAddress(const KMemoryRegion*& region, AddressType address,
-                            PAddr system_start_address, std::size_t system_size)
+                               const KMemoryRegionTree& tree, KMemoryRegionType type) {
-        : application{application_start_address, application_size},
+        // Check if the cached region already contains the address.
-          applet{applet_start_address, applet_size}, system{system_start_address, system_size} {}
+        if (region != nullptr && region->Contains(address)) {
+            return true;
+        }
 
-    const KMemoryRegion application;
+        // Find the containing region, and update the cache.
-    const KMemoryRegion applet;
+        if (const KMemoryRegion* found = tree.Find(address);
-    const KMemoryRegion system;
+            found != nullptr && found->IsDerivedFrom(type)) {
+            region = found;
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    template <typename AddressType>
+    static bool IsTypedAddress(const KMemoryRegion*& region, AddressType address, size_t size,
+                               const KMemoryRegionTree& tree, KMemoryRegionType type) {
+        // Get the end of the checked region.
+        const u64 last_address = address + size - 1;
+
+        // Walk the tree to verify the region is correct.
+        const KMemoryRegion* cur =
+            (region != nullptr && region->Contains(address)) ? region : tree.Find(address);
+        while (cur != nullptr && cur->IsDerivedFrom(type)) {
+            if (last_address <= cur->GetLastAddress()) {
+                region = cur;
+                return true;
+            }
+
+            cur = cur->GetNext();
+        }
+        return false;
+    }
+
+    template <typename AddressType>
+    static const KMemoryRegion* Find(AddressType address, const KMemoryRegionTree& tree) {
+        return tree.Find(address);
+    }
+
+    static KMemoryRegion& Dereference(KMemoryRegion* region) {
+        ASSERT(region != nullptr);
+        return *region;
+    }
+
+    static const KMemoryRegion& Dereference(const KMemoryRegion* region) {
+        ASSERT(region != nullptr);
+        return *region;
+    }
+
+    VAddr GetStackTopAddress(s32 core_id, KMemoryRegionType type) const {
+        const auto& region = Dereference(
+            GetVirtualMemoryRegionTree().FindByTypeAndAttribute(type, static_cast<u32>(core_id)));
+        ASSERT(region.GetEndAddress() != 0);
+        return region.GetEndAddress();
+    }
+
+private:
+    u64 linear_phys_to_virt_diff{};
+    u64 linear_virt_to_phys_diff{};
+    KMemoryRegionAllocator memory_region_allocator;
+    KMemoryRegionTree virtual_tree;
+    KMemoryRegionTree physical_tree;
+    KMemoryRegionTree virtual_linear_tree;
+    KMemoryRegionTree physical_linear_tree;
 };
 
+namespace Init {
+
+// These should be generic, regardless of board.
+void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout);
+
+// These may be implemented in a board-specific manner.
+void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout);
+void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout);
+
+} // namespace Init
+
 } // namespace Kernel

src/core/hle/kernel/k_memory_manager.cpp

@@ -173,4 +173,16 @@ ResultCode KMemoryManager::Free(KPageLinkedList& page_list, std::size_t num_page
     return RESULT_SUCCESS;
 }
 
+std::size_t KMemoryManager::Impl::CalculateManagementOverheadSize(std::size_t region_size) {
+    const std::size_t ref_count_size = (region_size / PageSize) * sizeof(u16);
+    const std::size_t optimize_map_size =
+        (Common::AlignUp((region_size / PageSize), Common::BitSize<u64>()) /
+         Common::BitSize<u64>()) *
+        sizeof(u64);
+    const std::size_t manager_meta_size =
+        Common::AlignUp(optimize_map_size + ref_count_size, PageSize);
+    const std::size_t page_heap_size = KPageHeap::CalculateManagementOverheadSize(region_size);
+    return manager_meta_size + page_heap_size;
+}
+
 } // namespace Kernel

src/core/hle/kernel/k_memory_manager.h

@@ -29,6 +29,10 @@ public:
 
         Shift = 4,
         Mask = (0xF << Shift),
+
+        // Aliases.
+        Unsafe = Application,
+        Secure = System,
     };
 
     enum class Direction : u32 {
@@ -56,6 +60,10 @@ public:
     static constexpr std::size_t MaxManagerCount = 10;
 
 public:
+    static std::size_t CalculateManagementOverheadSize(std::size_t region_size) {
+        return Impl::CalculateManagementOverheadSize(region_size);
+    }
+
     static constexpr u32 EncodeOption(Pool pool, Direction dir) {
         return (static_cast<u32>(pool) << static_cast<u32>(Pool::Shift)) |
                (static_cast<u32>(dir) << static_cast<u32>(Direction::Shift));
@@ -85,6 +93,16 @@ private:
         KPageHeap heap;
         Pool pool{};
 
+    public:
+        static std::size_t CalculateManagementOverheadSize(std::size_t region_size);
+
+        static constexpr std::size_t CalculateOptimizedProcessOverheadSize(
+            std::size_t region_size) {
+            return (Common::AlignUp((region_size / PageSize), Common::BitSize<u64>()) /
+                    Common::BitSize<u64>()) *
+                   sizeof(u64);
+        }
+
     public:
         Impl() = default;
 

src/core/hle/kernel/k_memory_region.h

@@ -0,0 +1,350 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "common/intrusive_red_black_tree.h"
+#include "core/hle/kernel/k_memory_region_type.h"
+
+namespace Kernel {
+
+class KMemoryRegionAllocator;
+
+class KMemoryRegion final : public Common::IntrusiveRedBlackTreeBaseNode<KMemoryRegion>,
+                            NonCopyable {
+    friend class KMemoryRegionTree;
+
+public:
+    constexpr KMemoryRegion() = default;
+    constexpr KMemoryRegion(u64 address_, u64 last_address_)
+        : address{address_}, last_address{last_address_} {}
+    constexpr KMemoryRegion(u64 address_, u64 last_address_, u64 pair_address_, u32 attributes_,
+                            u32 type_id_)
+        : address(address_), last_address(last_address_), pair_address(pair_address_),
+          attributes(attributes_), type_id(type_id_) {}
+    constexpr KMemoryRegion(u64 address_, u64 last_address_, u32 attributes_, u32 type_id_)
+        : KMemoryRegion(address_, last_address_, std::numeric_limits<u64>::max(), attributes_,
+                        type_id_) {}
+
+    static constexpr int Compare(const KMemoryRegion& lhs, const KMemoryRegion& rhs) {
+        if (lhs.GetAddress() < rhs.GetAddress()) {
+            return -1;
+        } else if (lhs.GetAddress() <= rhs.GetLastAddress()) {
+            return 0;
+        } else {
+            return 1;
+        }
+    }
+
+private:
+    constexpr void Reset(u64 a, u64 la, u64 p, u32 r, u32 t) {
+        address = a;
+        pair_address = p;
+        last_address = la;
+        attributes = r;
+        type_id = t;
+    }
+
+public:
+    constexpr u64 GetAddress() const {
+        return address;
+    }
+
+    constexpr u64 GetPairAddress() const {
+        return pair_address;
+    }
+
+    constexpr u64 GetLastAddress() const {
+        return last_address;
+    }
+
+    constexpr u64 GetEndAddress() const {
+        return this->GetLastAddress() + 1;
+    }
+
+    constexpr size_t GetSize() const {
+        return this->GetEndAddress() - this->GetAddress();
+    }
+
+    constexpr u32 GetAttributes() const {
+        return attributes;
+    }
+
+    constexpr u32 GetType() const {
+        return type_id;
+    }
+
+    constexpr void SetType(u32 type) {
+        ASSERT(this->CanDerive(type));
+        type_id = type;
+    }
+
+    constexpr bool Contains(u64 address) const {
+        ASSERT(this->GetEndAddress() != 0);
+        return this->GetAddress() <= address && address <= this->GetLastAddress();
+    }
+
+    constexpr bool IsDerivedFrom(u32 type) const {
+        return (this->GetType() | type) == this->GetType();
+    }
+
+    constexpr bool HasTypeAttribute(u32 attr) const {
+        return (this->GetType() | attr) == this->GetType();
+    }
+
+    constexpr bool CanDerive(u32 type) const {
+        return (this->GetType() | type) == type;
+    }
+
+    constexpr void SetPairAddress(u64 a) {
+        pair_address = a;
+    }
+
+    constexpr void SetTypeAttribute(u32 attr) {
+        type_id |= attr;
+    }
+
+private:
+    u64 address{};
+    u64 last_address{};
+    u64 pair_address{};
+    u32 attributes{};
+    u32 type_id{};
+};
+
+class KMemoryRegionTree final : NonCopyable {
+public:
+    struct DerivedRegionExtents {
+        const KMemoryRegion* first_region{};
+        const KMemoryRegion* last_region{};
+
+        constexpr DerivedRegionExtents() = default;
+
+        constexpr u64 GetAddress() const {
+            return this->first_region->GetAddress();
+        }
+
+        constexpr u64 GetLastAddress() const {
+            return this->last_region->GetLastAddress();
+        }
+
+        constexpr u64 GetEndAddress() const {
+            return this->GetLastAddress() + 1;
+        }
+
+        constexpr size_t GetSize() const {
+            return this->GetEndAddress() - this->GetAddress();
+        }
+    };
+
+private:
+    using TreeType =
+        Common::IntrusiveRedBlackTreeBaseTraits<KMemoryRegion>::TreeType<KMemoryRegion>;
+
+public:
+    using value_type = TreeType::value_type;
+    using size_type = TreeType::size_type;
+    using difference_type = TreeType::difference_type;
+    using pointer = TreeType::pointer;
+    using const_pointer = TreeType::const_pointer;
+    using reference = TreeType::reference;
+    using const_reference = TreeType::const_reference;
+    using iterator = TreeType::iterator;
+    using const_iterator = TreeType::const_iterator;
+
+private:
+    TreeType m_tree{};
+    KMemoryRegionAllocator& memory_region_allocator;
+
+public:
+    explicit KMemoryRegionTree(KMemoryRegionAllocator& memory_region_allocator_);
+
+public:
+    KMemoryRegion* FindModifiable(u64 address) {
+        if (auto it = this->find(KMemoryRegion(address, address, 0, 0)); it != this->end()) {
+            return std::addressof(*it);
+        } else {
+            return nullptr;
+        }
+    }
+
+    const KMemoryRegion* Find(u64 address) const {
+        if (auto it = this->find(KMemoryRegion(address, address, 0, 0)); it != this->cend()) {
+            return std::addressof(*it);
+        } else {
+            return nullptr;
+        }
+    }
+
+    const KMemoryRegion* FindByType(KMemoryRegionType type_id) const {
+        for (auto it = this->cbegin(); it != this->cend(); ++it) {
+            if (it->GetType() == static_cast<u32>(type_id)) {
+                return std::addressof(*it);
+            }
+        }
+        return nullptr;
+    }
+
+    const KMemoryRegion* FindByTypeAndAttribute(u32 type_id, u32 attr) const {
+        for (auto it = this->cbegin(); it != this->cend(); ++it) {
+            if (it->GetType() == type_id && it->GetAttributes() == attr) {
+                return std::addressof(*it);
+            }
+        }
+        return nullptr;
+    }
+
+    const KMemoryRegion* FindFirstDerived(KMemoryRegionType type_id) const {
+        for (auto it = this->cbegin(); it != this->cend(); it++) {
+            if (it->IsDerivedFrom(type_id)) {
+                return std::addressof(*it);
+            }
+        }
+        return nullptr;
+    }
+
+    const KMemoryRegion* FindLastDerived(KMemoryRegionType type_id) const {
+        const KMemoryRegion* region = nullptr;
+        for (auto it = this->begin(); it != this->end(); it++) {
+            if (it->IsDerivedFrom(type_id)) {
+                region = std::addressof(*it);
+            }
+        }
+        return region;
+    }
+
+    DerivedRegionExtents GetDerivedRegionExtents(KMemoryRegionType type_id) const {
+        DerivedRegionExtents extents;
+
+        ASSERT(extents.first_region == nullptr);
+        ASSERT(extents.last_region == nullptr);
+
+        for (auto it = this->cbegin(); it != this->cend(); it++) {
+            if (it->IsDerivedFrom(type_id)) {
+                if (extents.first_region == nullptr) {
+                    extents.first_region = std::addressof(*it);
+                }
+                extents.last_region = std::addressof(*it);
+            }
+        }
+
+        ASSERT(extents.first_region != nullptr);
+        ASSERT(extents.last_region != nullptr);
+
+        return extents;
+    }
+
+    DerivedRegionExtents GetDerivedRegionExtents(u32 type_id) const {
+        return GetDerivedRegionExtents(static_cast<KMemoryRegionType>(type_id));
+    }
+
+public:
+    void InsertDirectly(u64 address, u64 last_address, u32 attr = 0, u32 type_id = 0);
+    bool Insert(u64 address, size_t size, u32 type_id, u32 new_attr = 0, u32 old_attr = 0);
+
+    VAddr GetRandomAlignedRegion(size_t size, size_t alignment, u32 type_id);
+
+    VAddr GetRandomAlignedRegionWithGuard(size_t size, size_t alignment, u32 type_id,
+                                          size_t guard_size) {
+        return this->GetRandomAlignedRegion(size + 2 * guard_size, alignment, type_id) + guard_size;
+    }
+
+public:
+    // Iterator accessors.
+    iterator begin() {
+        return m_tree.begin();
+    }
+
+    const_iterator begin() const {
+        return m_tree.begin();
+    }
+
+    iterator end() {
+        return m_tree.end();
+    }
+
+    const_iterator end() const {
+        return m_tree.end();
+    }
+
+    const_iterator cbegin() const {
+        return this->begin();
+    }
+
+    const_iterator cend() const {
+        return this->end();
+    }
+
+    iterator iterator_to(reference ref) {
+        return m_tree.iterator_to(ref);
+    }
+
+    const_iterator iterator_to(const_reference ref) const {
+        return m_tree.iterator_to(ref);
+    }
+
+    // Content management.
+    bool empty() const {
+        return m_tree.empty();
+    }
+
+    reference back() {
+        return m_tree.back();
+    }
+
+    const_reference back() const {
+        return m_tree.back();
+    }
+
+    reference front() {
+        return m_tree.front();
+    }
+
+    const_reference front() const {
+        return m_tree.front();
+    }
+
+    iterator insert(reference ref) {
+        return m_tree.insert(ref);
+    }
+
+    iterator erase(iterator it) {
+        return m_tree.erase(it);
+    }
+
+    iterator find(const_reference ref) const {
+        return m_tree.find(ref);
+    }
+
+    iterator nfind(const_reference ref) const {
+        return m_tree.nfind(ref);
+    }
+};
+
+class KMemoryRegionAllocator final : NonCopyable {
+public:
+    static constexpr size_t MaxMemoryRegions = 200;
+
+    constexpr KMemoryRegionAllocator() = default;
+
+    template <typename... Args>
+    KMemoryRegion* Allocate(Args&&... args) {
+        // Ensure we stay within the bounds of our heap.
+        ASSERT(this->num_regions < MaxMemoryRegions);
+
+        // Create the new region.
+        KMemoryRegion* region = std::addressof(this->region_heap[this->num_regions++]);
+        new (region) KMemoryRegion(std::forward<Args>(args)...);
+
+        return region;
+    }
+
+private:
+    std::array<KMemoryRegion, MaxMemoryRegions> region_heap{};
+    size_t num_regions{};
+};
+
+} // namespace Kernel

src/core/hle/kernel/k_memory_region_type.h

@@ -0,0 +1,338 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/bit_util.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+#define ARCH_ARM64
+#define BOARD_NINTENDO_NX
+
+namespace Kernel {
+
+enum KMemoryRegionType : u32 {
+    KMemoryRegionAttr_CarveoutProtected = 0x04000000,
+    KMemoryRegionAttr_DidKernelMap = 0x08000000,
+    KMemoryRegionAttr_ShouldKernelMap = 0x10000000,
+    KMemoryRegionAttr_UserReadOnly = 0x20000000,
+    KMemoryRegionAttr_NoUserMap = 0x40000000,
+    KMemoryRegionAttr_LinearMapped = 0x80000000,
+};
+DECLARE_ENUM_FLAG_OPERATORS(KMemoryRegionType);
+
+namespace impl {
+
+constexpr size_t BitsForDeriveSparse(size_t n) {
+    return n + 1;
+}
+
+constexpr size_t BitsForDeriveDense(size_t n) {
+    size_t low = 0, high = 1;
+    for (size_t i = 0; i < n - 1; ++i) {
+        if ((++low) == high) {
+            ++high;
+            low = 0;
+        }
+    }
+    return high + 1;
+}
+
+class KMemoryRegionTypeValue {
+public:
+    using ValueType = std::underlying_type_t<KMemoryRegionType>;
+
+    constexpr KMemoryRegionTypeValue() = default;
+
+    constexpr operator KMemoryRegionType() const {
+        return static_cast<KMemoryRegionType>(m_value);
+    }
+
+    constexpr ValueType GetValue() const {
+        return m_value;
+    }
+
+    constexpr const KMemoryRegionTypeValue& Finalize() {
+        m_finalized = true;
+        return *this;
+    }
+
+    constexpr const KMemoryRegionTypeValue& SetSparseOnly() {
+        m_sparse_only = true;
+        return *this;
+    }
+
+    constexpr const KMemoryRegionTypeValue& SetDenseOnly() {
+        m_dense_only = true;
+        return *this;
+    }
+
+    constexpr KMemoryRegionTypeValue& SetAttribute(u32 attr) {
+        m_value |= attr;
+        return *this;
+    }
+
+    constexpr KMemoryRegionTypeValue DeriveInitial(
+        size_t i, size_t next = Common::BitSize<ValueType>()) const {
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_value = (ValueType{1} << i);
+        new_type.m_next_bit = next;
+        return new_type;
+    }
+
+    constexpr KMemoryRegionTypeValue DeriveAttribute(u32 attr) const {
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_value |= attr;
+        return new_type;
+    }
+
+    constexpr KMemoryRegionTypeValue DeriveTransition(size_t ofs = 0, size_t adv = 1) const {
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_value |= (ValueType{1} << (m_next_bit + ofs));
+        new_type.m_next_bit += adv;
+        return new_type;
+    }
+
+    constexpr KMemoryRegionTypeValue DeriveSparse(size_t ofs, size_t n, size_t i) const {
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_value |= (ValueType{1} << (m_next_bit + ofs));
+        new_type.m_value |= (ValueType{1} << (m_next_bit + ofs + 1 + i));
+        new_type.m_next_bit += ofs + n + 1;
+        return new_type;
+    }
+
+    constexpr KMemoryRegionTypeValue Derive(size_t n, size_t i) const {
+        size_t low = 0, high = 1;
+        for (size_t j = 0; j < i; ++j) {
+            if ((++low) == high) {
+                ++high;
+                low = 0;
+            }
+        }
+
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_value |= (ValueType{1} << (m_next_bit + low));
+        new_type.m_value |= (ValueType{1} << (m_next_bit + high));
+        new_type.m_next_bit += BitsForDeriveDense(n);
+        return new_type;
+    }
+
+    constexpr KMemoryRegionTypeValue Advance(size_t n) const {
+        KMemoryRegionTypeValue new_type = *this;
+        new_type.m_next_bit += n;
+        return new_type;
+    }
+
+    constexpr bool IsAncestorOf(ValueType v) const {
+        return (m_value | v) == v;
+    }
+
+private:
+    constexpr KMemoryRegionTypeValue(ValueType v) : m_value(v) {}
+
+private:
+    ValueType m_value{};
+    size_t m_next_bit{};
+    bool m_finalized{};
+    bool m_sparse_only{};
+    bool m_dense_only{};
+};
+
+} // namespace impl
+
+constexpr auto KMemoryRegionType_None = impl::KMemoryRegionTypeValue();
+constexpr auto KMemoryRegionType_Kernel = KMemoryRegionType_None.DeriveInitial(0, 2);
+constexpr auto KMemoryRegionType_Dram = KMemoryRegionType_None.DeriveInitial(1, 2);
+static_assert(KMemoryRegionType_Kernel.GetValue() == 0x1);
+static_assert(KMemoryRegionType_Dram.GetValue() == 0x2);
+
+constexpr auto KMemoryRegionType_DramKernelBase =
+    KMemoryRegionType_Dram.DeriveSparse(0, 3, 0)
+        .SetAttribute(KMemoryRegionAttr_NoUserMap)
+        .SetAttribute(KMemoryRegionAttr_CarveoutProtected);
+constexpr auto KMemoryRegionType_DramReservedBase = KMemoryRegionType_Dram.DeriveSparse(0, 3, 1);
+constexpr auto KMemoryRegionType_DramHeapBase =
+    KMemoryRegionType_Dram.DeriveSparse(0, 3, 2).SetAttribute(KMemoryRegionAttr_LinearMapped);
+static_assert(KMemoryRegionType_DramKernelBase.GetValue() ==
+              (0xE | KMemoryRegionAttr_CarveoutProtected | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramReservedBase.GetValue() == (0x16));
+static_assert(KMemoryRegionType_DramHeapBase.GetValue() == (0x26 | KMemoryRegionAttr_LinearMapped));
+
+constexpr auto KMemoryRegionType_DramKernelCode =
+    KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 0);
+constexpr auto KMemoryRegionType_DramKernelSlab =
+    KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 1);
+constexpr auto KMemoryRegionType_DramKernelPtHeap =
+    KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 2).SetAttribute(
+        KMemoryRegionAttr_LinearMapped);
+constexpr auto KMemoryRegionType_DramKernelInitPt =
+    KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 3).SetAttribute(
+        KMemoryRegionAttr_LinearMapped);
+static_assert(KMemoryRegionType_DramKernelCode.GetValue() ==
+              (0xCE | KMemoryRegionAttr_CarveoutProtected | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramKernelSlab.GetValue() ==
+              (0x14E | KMemoryRegionAttr_CarveoutProtected | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramKernelPtHeap.GetValue() ==
+              (0x24E | KMemoryRegionAttr_CarveoutProtected | KMemoryRegionAttr_NoUserMap |
+               KMemoryRegionAttr_LinearMapped));
+static_assert(KMemoryRegionType_DramKernelInitPt.GetValue() ==
+              (0x44E | KMemoryRegionAttr_CarveoutProtected | KMemoryRegionAttr_NoUserMap |
+               KMemoryRegionAttr_LinearMapped));
+
+constexpr auto KMemoryRegionType_DramReservedEarly =
+    KMemoryRegionType_DramReservedBase.DeriveAttribute(KMemoryRegionAttr_NoUserMap);
+static_assert(KMemoryRegionType_DramReservedEarly.GetValue() ==
+              (0x16 | KMemoryRegionAttr_NoUserMap));
+
+constexpr auto KMemoryRegionType_KernelTraceBuffer =
+    KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 0)
+        .SetAttribute(KMemoryRegionAttr_LinearMapped)
+        .SetAttribute(KMemoryRegionAttr_UserReadOnly);
+constexpr auto KMemoryRegionType_OnMemoryBootImage =
+    KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 1);
+constexpr auto KMemoryRegionType_DTB = KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 2);
+static_assert(KMemoryRegionType_KernelTraceBuffer.GetValue() ==
+              (0xD6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_UserReadOnly));
+static_assert(KMemoryRegionType_OnMemoryBootImage.GetValue() == 0x156);
+static_assert(KMemoryRegionType_DTB.GetValue() == 0x256);
+
+constexpr auto KMemoryRegionType_DramPoolPartition =
+    KMemoryRegionType_DramHeapBase.DeriveAttribute(KMemoryRegionAttr_NoUserMap);
+static_assert(KMemoryRegionType_DramPoolPartition.GetValue() ==
+              (0x26 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));
+
+constexpr auto KMemoryRegionType_DramPoolManagement =
+    KMemoryRegionType_DramPoolPartition.DeriveTransition(0, 2).DeriveTransition().SetAttribute(
+        KMemoryRegionAttr_CarveoutProtected);
+constexpr auto KMemoryRegionType_DramUserPool =
+    KMemoryRegionType_DramPoolPartition.DeriveTransition(1, 2).DeriveTransition();
+static_assert(KMemoryRegionType_DramPoolManagement.GetValue() ==
+              (0x166 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap |
+               KMemoryRegionAttr_CarveoutProtected));
+static_assert(KMemoryRegionType_DramUserPool.GetValue() ==
+              (0x1A6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));
+
+constexpr auto KMemoryRegionType_DramApplicationPool = KMemoryRegionType_DramUserPool.Derive(4, 0);
+constexpr auto KMemoryRegionType_DramAppletPool = KMemoryRegionType_DramUserPool.Derive(4, 1);
+constexpr auto KMemoryRegionType_DramSystemNonSecurePool =
+    KMemoryRegionType_DramUserPool.Derive(4, 2);
+constexpr auto KMemoryRegionType_DramSystemPool =
+    KMemoryRegionType_DramUserPool.Derive(4, 3).SetAttribute(KMemoryRegionAttr_CarveoutProtected);
+static_assert(KMemoryRegionType_DramApplicationPool.GetValue() ==
+              (0x7A6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramAppletPool.GetValue() ==
+              (0xBA6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramSystemNonSecurePool.GetValue() ==
+              (0xDA6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap));
+static_assert(KMemoryRegionType_DramSystemPool.GetValue() ==
+              (0x13A6 | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_NoUserMap |
+               KMemoryRegionAttr_CarveoutProtected));
+
+constexpr auto KMemoryRegionType_VirtualDramHeapBase = KMemoryRegionType_Dram.DeriveSparse(1, 3, 0);
+constexpr auto KMemoryRegionType_VirtualDramKernelPtHeap =
+    KMemoryRegionType_Dram.DeriveSparse(1, 3, 1);
+constexpr auto KMemoryRegionType_VirtualDramKernelTraceBuffer =
+    KMemoryRegionType_Dram.DeriveSparse(1, 3, 2);
+static_assert(KMemoryRegionType_VirtualDramHeapBase.GetValue() == 0x1A);
+static_assert(KMemoryRegionType_VirtualDramKernelPtHeap.GetValue() == 0x2A);
+static_assert(KMemoryRegionType_VirtualDramKernelTraceBuffer.GetValue() == 0x4A);
+
+constexpr auto KMemoryRegionType_VirtualDramKernelInitPt =
+    KMemoryRegionType_VirtualDramHeapBase.Derive(3, 0);
+constexpr auto KMemoryRegionType_VirtualDramPoolManagement =
+    KMemoryRegionType_VirtualDramHeapBase.Derive(3, 1);
+constexpr auto KMemoryRegionType_VirtualDramUserPool =
+    KMemoryRegionType_VirtualDramHeapBase.Derive(3, 2);
+static_assert(KMemoryRegionType_VirtualDramKernelInitPt.GetValue() == 0x19A);
+static_assert(KMemoryRegionType_VirtualDramPoolManagement.GetValue() == 0x29A);
+static_assert(KMemoryRegionType_VirtualDramUserPool.GetValue() == 0x31A);
+
+// NOTE: For unknown reason, the pools are derived out-of-order here. It's worth eventually trying
+// to understand why Nintendo made this choice.
+// UNUSED: .Derive(6, 0);
+// UNUSED: .Derive(6, 1);
+constexpr auto KMemoryRegionType_VirtualDramAppletPool =
+    KMemoryRegionType_VirtualDramUserPool.Derive(6, 2);
+constexpr auto KMemoryRegionType_VirtualDramApplicationPool =
+    KMemoryRegionType_VirtualDramUserPool.Derive(6, 3);
+constexpr auto KMemoryRegionType_VirtualDramSystemNonSecurePool =
+    KMemoryRegionType_VirtualDramUserPool.Derive(6, 4);
+constexpr auto KMemoryRegionType_VirtualDramSystemPool =
+    KMemoryRegionType_VirtualDramUserPool.Derive(6, 5);
+static_assert(KMemoryRegionType_VirtualDramAppletPool.GetValue() == 0x1B1A);
+static_assert(KMemoryRegionType_VirtualDramApplicationPool.GetValue() == 0x271A);
+static_assert(KMemoryRegionType_VirtualDramSystemNonSecurePool.GetValue() == 0x2B1A);
+static_assert(KMemoryRegionType_VirtualDramSystemPool.GetValue() == 0x331A);
+
+constexpr auto KMemoryRegionType_ArchDeviceBase =
+    KMemoryRegionType_Kernel.DeriveTransition(0, 1).SetSparseOnly();
+constexpr auto KMemoryRegionType_BoardDeviceBase =
+    KMemoryRegionType_Kernel.DeriveTransition(0, 2).SetDenseOnly();
+static_assert(KMemoryRegionType_ArchDeviceBase.GetValue() == 0x5);
+static_assert(KMemoryRegionType_BoardDeviceBase.GetValue() == 0x5);
+
+#if defined(ARCH_ARM64)
+#include "core/hle/kernel/arch/arm64/k_memory_region_device_types.inc"
+#elif defined(ARCH_ARM)
+#error "Unimplemented"
+#else
+// Default to no architecture devices.
+constexpr auto NumArchitectureDeviceRegions = 0;
+#endif
+static_assert(NumArchitectureDeviceRegions >= 0);
+
+#if defined(BOARD_NINTENDO_NX)
+#include "core/hle/kernel/board/nintendo/nx/k_memory_region_device_types.inc"
+#else
+// Default to no board devices.
+constexpr auto NumBoardDeviceRegions = 0;
+#endif
+static_assert(NumBoardDeviceRegions >= 0);
+
+constexpr auto KMemoryRegionType_KernelCode = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 0);
+constexpr auto KMemoryRegionType_KernelStack = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 1);
+constexpr auto KMemoryRegionType_KernelMisc = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 2);
+constexpr auto KMemoryRegionType_KernelSlab = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 3);
+static_assert(KMemoryRegionType_KernelCode.GetValue() == 0x19);
+static_assert(KMemoryRegionType_KernelStack.GetValue() == 0x29);
+static_assert(KMemoryRegionType_KernelMisc.GetValue() == 0x49);
+static_assert(KMemoryRegionType_KernelSlab.GetValue() == 0x89);
+
+constexpr auto KMemoryRegionType_KernelMiscDerivedBase =
+    KMemoryRegionType_KernelMisc.DeriveTransition();
+static_assert(KMemoryRegionType_KernelMiscDerivedBase.GetValue() == 0x149);
+
+// UNUSED: .Derive(7, 0);
+constexpr auto KMemoryRegionType_KernelMiscMainStack =
+    KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 1);
+constexpr auto KMemoryRegionType_KernelMiscMappedDevice =
+    KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 2);
+constexpr auto KMemoryRegionType_KernelMiscExceptionStack =
+    KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 3);
+constexpr auto KMemoryRegionType_KernelMiscUnknownDebug =
+    KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 4);
+// UNUSED: .Derive(7, 5);
+constexpr auto KMemoryRegionType_KernelMiscIdleStack =
+    KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 6);
+static_assert(KMemoryRegionType_KernelMiscMainStack.GetValue() == 0xB49);
+static_assert(KMemoryRegionType_KernelMiscMappedDevice.GetValue() == 0xD49);
+static_assert(KMemoryRegionType_KernelMiscExceptionStack.GetValue() == 0x1349);
+static_assert(KMemoryRegionType_KernelMiscUnknownDebug.GetValue() == 0x1549);
+static_assert(KMemoryRegionType_KernelMiscIdleStack.GetValue() == 0x2349);
+
+constexpr auto KMemoryRegionType_KernelTemp = KMemoryRegionType_Kernel.Advance(2).Derive(2, 0);
+static_assert(KMemoryRegionType_KernelTemp.GetValue() == 0x31);
+
+constexpr KMemoryRegionType GetTypeForVirtualLinearMapping(u32 type_id) {
+    if (KMemoryRegionType_KernelTraceBuffer.IsAncestorOf(type_id)) {
+        return KMemoryRegionType_VirtualDramKernelTraceBuffer;
+    } else if (KMemoryRegionType_DramKernelPtHeap.IsAncestorOf(type_id)) {
+        return KMemoryRegionType_VirtualDramKernelPtHeap;
+    } else {
+        return KMemoryRegionType_Dram;
+    }
+}
+
+} // namespace Kernel

src/core/hle/kernel/k_scheduler.cpp

@@ -62,7 +62,7 @@ void KScheduler::RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedul
 }
 
 u64 KScheduler::UpdateHighestPriorityThread(KThread* highest_thread) {
-    std::scoped_lock lock{guard};
+    KScopedSpinLock lk{guard};
     if (KThread* prev_highest_thread = state.highest_priority_thread;
         prev_highest_thread != highest_thread) {
         if (prev_highest_thread != nullptr) {
@@ -637,11 +637,11 @@ void KScheduler::RescheduleCurrentCore() {
     if (phys_core.IsInterrupted()) {
         phys_core.ClearInterrupt();
     }
-    guard.lock();
+    guard.Lock();
     if (state.needs_scheduling.load()) {
         Schedule();
     } else {
-        guard.unlock();
+        guard.Unlock();
     }
 }
 
@@ -669,7 +669,7 @@ void KScheduler::Unload(KThread* thread) {
         } else {
             prev_thread = nullptr;
         }
-        thread->context_guard.unlock();
+        thread->context_guard.Unlock();
     }
 }
 
@@ -713,7 +713,7 @@ void KScheduler::ScheduleImpl() {
 
     // If we're not actually switching thread, there's nothing to do.
     if (next_thread == current_thread.load()) {
-        guard.unlock();
+        guard.Unlock();
         return;
     }
 
@@ -732,7 +732,7 @@ void KScheduler::ScheduleImpl() {
     } else {
         old_context = &idle_thread->GetHostContext();
     }
-    guard.unlock();
+    guard.Unlock();
 
     Common::Fiber::YieldTo(*old_context, *switch_fiber);
     /// When a thread wakes up, the scheduler may have changed to other in another core.
@@ -748,24 +748,24 @@ void KScheduler::OnSwitch(void* this_scheduler) {
 void KScheduler::SwitchToCurrent() {
     while (true) {
         {
-            std::scoped_lock lock{guard};
+            KScopedSpinLock lk{guard};
             current_thread.store(state.highest_priority_thread);
             state.needs_scheduling.store(false);
         }
         const auto is_switch_pending = [this] {
-            std::scoped_lock lock{guard};
+            KScopedSpinLock lk{guard};
             return state.needs_scheduling.load();
         };
         do {
             auto next_thread = current_thread.load();
             if (next_thread != nullptr) {
-                next_thread->context_guard.lock();
+                next_thread->context_guard.Lock();
                 if (next_thread->GetRawState() != ThreadState::Runnable) {
-                    next_thread->context_guard.unlock();
+                    next_thread->context_guard.Unlock();
                     break;
                 }
                 if (next_thread->GetActiveCore() != core_id) {
-                    next_thread->context_guard.unlock();
+                    next_thread->context_guard.Unlock();
                     break;
                 }
             }

src/core/hle/kernel/k_scheduler.h

@@ -2,19 +2,16 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-// This file references various implementation details from Atmosphere, an open-source firmware for
-// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
-
 #pragma once
 
 #include <atomic>
 
 #include "common/common_types.h"
-#include "common/spin_lock.h"
 #include "core/hle/kernel/global_scheduler_context.h"
 #include "core/hle/kernel/k_priority_queue.h"
 #include "core/hle/kernel/k_scheduler_lock.h"
 #include "core/hle/kernel/k_scoped_lock.h"
+#include "core/hle/kernel/k_spin_lock.h"
 
 namespace Common {
 class Fiber;
@@ -195,7 +192,7 @@ private:
     u64 last_context_switch_time{};
     const s32 core_id;
 
-    Common::SpinLock guard{};
+    KSpinLock guard{};
 };
 
 class [[nodiscard]] KScopedSchedulerLock : KScopedLock<GlobalSchedulerContext::LockType> {

src/core/hle/kernel/k_scheduler_lock.h

@@ -2,14 +2,11 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-// This file references various implementation details from Atmosphere, an open-source firmware for
-// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
-
 #pragma once
 
 #include "common/assert.h"
-#include "common/spin_lock.h"
 #include "core/hardware_properties.h"
+#include "core/hle/kernel/k_spin_lock.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 
@@ -34,7 +31,7 @@ public:
         } else {
             // Otherwise, we want to disable scheduling and acquire the spinlock.
             SchedulerType::DisableScheduling(kernel);
-            spin_lock.lock();
+            spin_lock.Lock();
 
             // For debug, ensure that our state is valid.
             ASSERT(lock_count == 0);
@@ -58,7 +55,7 @@ public:
 
             // Note that we no longer hold the lock, and unlock the spinlock.
             owner_thread = nullptr;
-            spin_lock.unlock();
+            spin_lock.Unlock();
 
             // Enable scheduling, and perform a rescheduling operation.
             SchedulerType::EnableScheduling(kernel, cores_needing_scheduling);
@@ -67,7 +64,7 @@ public:
 
 private:
     KernelCore& kernel;
-    Common::SpinLock spin_lock{};
+    KAlignedSpinLock spin_lock{};
     s32 lock_count{};
     KThread* owner_thread{};
 };

src/core/hle/kernel/k_spin_lock.h

@@ -28,6 +28,12 @@ private:
     std::atomic_flag lck = ATOMIC_FLAG_INIT;
 };
 
+// TODO(bunnei): Alias for now, in case we want to implement these accurately in the future.
+using KAlignedSpinLock = KSpinLock;
+using KNotAlignedSpinLock = KSpinLock;
+
 using KScopedSpinLock = KScopedLock<KSpinLock>;
+using KScopedAlignedSpinLock = KScopedLock<KAlignedSpinLock>;
+using KScopedNotAlignedSpinLock = KScopedLock<KNotAlignedSpinLock>;
 
 } // namespace Kernel

src/core/hle/kernel/k_system_control.cpp

@@ -1,42 +0,0 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <random>
-
-#include "core/hle/kernel/k_system_control.h"
-
-namespace Kernel {
-
-namespace {
-template <typename F>
-u64 GenerateUniformRange(u64 min, u64 max, F f) {
-    // Handle the case where the difference is too large to represent.
-    if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
-        return f();
-    }
-
-    // Iterate until we get a value in range.
-    const u64 range_size = ((max + 1) - min);
-    const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
-    while (true) {
-        if (const u64 rnd = f(); rnd < effective_max) {
-            return min + (rnd % range_size);
-        }
-    }
-}
-
-} // Anonymous namespace
-
-u64 KSystemControl::GenerateRandomU64() {
-    static std::random_device device;
-    static std::mt19937 gen(device());
-    static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
-    return distribution(gen);
-}
-
-u64 KSystemControl::GenerateRandomRange(u64 min, u64 max) {
-    return GenerateUniformRange(min, max, GenerateRandomU64);
-}
-
-} // namespace Kernel

src/core/hle/kernel/k_system_control.h

@@ -6,14 +6,18 @@
 
 #include "common/common_types.h"
 
+#define BOARD_NINTENDO_NX
+
+#ifdef BOARD_NINTENDO_NX
+
+#include "core/hle/kernel/board/nintendo/nx/k_system_control.h"
+
 namespace Kernel {
 
-class KSystemControl {
+using Kernel::Board::Nintendo::Nx::KSystemControl;
-public:
-    KSystemControl() = default;
-
-    static u64 GenerateRandomRange(u64 min, u64 max);
-    static u64 GenerateRandomU64();
-};
 
 } // namespace Kernel
+
+#else
+#error "Unknown board for KSystemControl"
+#endif

src/core/hle/kernel/k_thread.h

@@ -14,10 +14,10 @@
 
 #include "common/common_types.h"
 #include "common/intrusive_red_black_tree.h"
-#include "common/spin_lock.h"
 #include "core/arm/arm_interface.h"
 #include "core/hle/kernel/k_affinity_mask.h"
 #include "core/hle/kernel/k_light_lock.h"
+#include "core/hle/kernel/k_spin_lock.h"
 #include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/svc_common.h"
@@ -732,7 +732,7 @@ private:
     s8 priority_inheritance_count{};
     bool resource_limit_release_hint{};
     StackParameters stack_parameters{};
-    Common::SpinLock context_guard{};
+    KSpinLock context_guard{};
 
     // For emulation
     std::shared_ptr<Common::Fiber> host_context{};

src/core/hle/kernel/k_trace.h

@@ -0,0 +1,12 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Kernel {
+
+constexpr bool IsKTraceEnabled = false;
+constexpr std::size_t KTraceBufferSize = IsKTraceEnabled ? 16 * 1024 * 1024 : 0;
+
+} // namespace Kernel

src/core/hle/kernel/kernel.cpp

@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project
+// Copyright 2021 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -12,6 +12,7 @@
 #include <utility>
 
 #include "common/assert.h"
+#include "common/common_sizes.h"
 #include "common/logging/log.h"
 #include "common/microprofile.h"
 #include "common/thread.h"
@@ -268,45 +269,314 @@ struct KernelCore::Impl {
         return schedulers[thread_id]->GetCurrentThread();
     }
 
+    void DeriveInitialMemoryLayout(KMemoryLayout& memory_layout) {
+        // Insert the root region for the virtual memory tree, from which all other regions will
+        // derive.
+        memory_layout.GetVirtualMemoryRegionTree().InsertDirectly(
+            KernelVirtualAddressSpaceBase,
+            KernelVirtualAddressSpaceBase + KernelVirtualAddressSpaceSize - 1);
+
+        // Insert the root region for the physical memory tree, from which all other regions will
+        // derive.
+        memory_layout.GetPhysicalMemoryRegionTree().InsertDirectly(
+            KernelPhysicalAddressSpaceBase,
+            KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceSize - 1);
+
+        // Save start and end for ease of use.
+        const VAddr code_start_virt_addr = KernelVirtualAddressCodeBase;
+        const VAddr code_end_virt_addr = KernelVirtualAddressCodeEnd;
+
+        // Setup the containing kernel region.
+        constexpr size_t KernelRegionSize = Common::Size_1_GB;
+        constexpr size_t KernelRegionAlign = Common::Size_1_GB;
+        constexpr VAddr kernel_region_start =
+            Common::AlignDown(code_start_virt_addr, KernelRegionAlign);
+        size_t kernel_region_size = KernelRegionSize;
+        if (!(kernel_region_start + KernelRegionSize - 1 <= KernelVirtualAddressSpaceLast)) {
+            kernel_region_size = KernelVirtualAddressSpaceEnd - kernel_region_start;
+        }
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            kernel_region_start, kernel_region_size, KMemoryRegionType_Kernel));
+
+        // Setup the code region.
+        constexpr size_t CodeRegionAlign = PageSize;
+        constexpr VAddr code_region_start =
+            Common::AlignDown(code_start_virt_addr, CodeRegionAlign);
+        constexpr VAddr code_region_end = Common::AlignUp(code_end_virt_addr, CodeRegionAlign);
+        constexpr size_t code_region_size = code_region_end - code_region_start;
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            code_region_start, code_region_size, KMemoryRegionType_KernelCode));
+
+        // Setup board-specific device physical regions.
+        Init::SetupDevicePhysicalMemoryRegions(memory_layout);
+
+        // Determine the amount of space needed for the misc region.
+        size_t misc_region_needed_size;
+        {
+            // Each core has a one page stack for all three stack types (Main, Idle, Exception).
+            misc_region_needed_size = Core::Hardware::NUM_CPU_CORES * (3 * (PageSize + PageSize));
+
+            // Account for each auto-map device.
+            for (const auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+                if (region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
+                    // Check that the region is valid.
+                    ASSERT(region.GetEndAddress() != 0);
+
+                    // Account for the region.
+                    misc_region_needed_size +=
+                        PageSize + (Common::AlignUp(region.GetLastAddress(), PageSize) -
+                                    Common::AlignDown(region.GetAddress(), PageSize));
+                }
+            }
+
+            // Multiply the needed size by three, to account for the need for guard space.
+            misc_region_needed_size *= 3;
+        }
+
+        // Decide on the actual size for the misc region.
+        constexpr size_t MiscRegionAlign = KernelAslrAlignment;
+        constexpr size_t MiscRegionMinimumSize = Common::Size_32_MB;
+        const size_t misc_region_size = Common::AlignUp(
+            std::max(misc_region_needed_size, MiscRegionMinimumSize), MiscRegionAlign);
+        ASSERT(misc_region_size > 0);
+
+        // Setup the misc region.
+        const VAddr misc_region_start =
+            memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+                misc_region_size, MiscRegionAlign, KMemoryRegionType_Kernel);
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            misc_region_start, misc_region_size, KMemoryRegionType_KernelMisc));
+
+        // Setup the stack region.
+        constexpr size_t StackRegionSize = Common::Size_14_MB;
+        constexpr size_t StackRegionAlign = KernelAslrAlignment;
+        const VAddr stack_region_start =
+            memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+                StackRegionSize, StackRegionAlign, KMemoryRegionType_Kernel);
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            stack_region_start, StackRegionSize, KMemoryRegionType_KernelStack));
+
+        // Determine the size of the resource region.
+        const size_t resource_region_size = memory_layout.GetResourceRegionSizeForInit();
+
+        // Determine the size of the slab region.
+        const size_t slab_region_size = Common::AlignUp(KernelSlabHeapSize, PageSize);
+        ASSERT(slab_region_size <= resource_region_size);
+
+        // Setup the slab region.
+        const PAddr code_start_phys_addr = KernelPhysicalAddressCodeBase;
+        const PAddr code_end_phys_addr = code_start_phys_addr + code_region_size;
+        const PAddr slab_start_phys_addr = code_end_phys_addr;
+        const PAddr slab_end_phys_addr = slab_start_phys_addr + slab_region_size;
+        constexpr size_t SlabRegionAlign = KernelAslrAlignment;
+        const size_t slab_region_needed_size =
+            Common::AlignUp(code_end_phys_addr + slab_region_size, SlabRegionAlign) -
+            Common::AlignDown(code_end_phys_addr, SlabRegionAlign);
+        const VAddr slab_region_start =
+            memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+                slab_region_needed_size, SlabRegionAlign, KMemoryRegionType_Kernel) +
+            (code_end_phys_addr % SlabRegionAlign);
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            slab_region_start, slab_region_size, KMemoryRegionType_KernelSlab));
+
+        // Setup the temp region.
+        constexpr size_t TempRegionSize = Common::Size_128_MB;
+        constexpr size_t TempRegionAlign = KernelAslrAlignment;
+        const VAddr temp_region_start =
+            memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+                TempRegionSize, TempRegionAlign, KMemoryRegionType_Kernel);
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(temp_region_start, TempRegionSize,
+                                                                 KMemoryRegionType_KernelTemp));
+
+        // Automatically map in devices that have auto-map attributes.
+        for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+            // We only care about kernel regions.
+            if (!region.IsDerivedFrom(KMemoryRegionType_Kernel)) {
+                continue;
+            }
+
+            // Check whether we should map the region.
+            if (!region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
+                continue;
+            }
+
+            // If this region has already been mapped, no need to consider it.
+            if (region.HasTypeAttribute(KMemoryRegionAttr_DidKernelMap)) {
+                continue;
+            }
+
+            // Check that the region is valid.
+            ASSERT(region.GetEndAddress() != 0);
+
+            // Set the attribute to note we've mapped this region.
+            region.SetTypeAttribute(KMemoryRegionAttr_DidKernelMap);
+
+            // Create a virtual pair region and insert it into the tree.
+            const PAddr map_phys_addr = Common::AlignDown(region.GetAddress(), PageSize);
+            const size_t map_size =
+                Common::AlignUp(region.GetEndAddress(), PageSize) - map_phys_addr;
+            const VAddr map_virt_addr =
+                memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
+                    map_size, PageSize, KMemoryRegionType_KernelMisc, PageSize);
+            ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+                map_virt_addr, map_size, KMemoryRegionType_KernelMiscMappedDevice));
+            region.SetPairAddress(map_virt_addr + region.GetAddress() - map_phys_addr);
+        }
+
+        Init::SetupDramPhysicalMemoryRegions(memory_layout);
+
+        // Insert a physical region for the kernel code region.
+        ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+            code_start_phys_addr, code_region_size, KMemoryRegionType_DramKernelCode));
+
+        // Insert a physical region for the kernel slab region.
+        ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+            slab_start_phys_addr, slab_region_size, KMemoryRegionType_DramKernelSlab));
+
+        // Determine size available for kernel page table heaps, requiring > 8 MB.
+        const PAddr resource_end_phys_addr = slab_start_phys_addr + resource_region_size;
+        const size_t page_table_heap_size = resource_end_phys_addr - slab_end_phys_addr;
+        ASSERT(page_table_heap_size / Common::Size_4_MB > 2);
+
+        // Insert a physical region for the kernel page table heap region
+        ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+            slab_end_phys_addr, page_table_heap_size, KMemoryRegionType_DramKernelPtHeap));
+
+        // All DRAM regions that we haven't tagged by this point will be mapped under the linear
+        // mapping. Tag them.
+        for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+            if (region.GetType() == KMemoryRegionType_Dram) {
+                // Check that the region is valid.
+                ASSERT(region.GetEndAddress() != 0);
+
+                // Set the linear map attribute.
+                region.SetTypeAttribute(KMemoryRegionAttr_LinearMapped);
+            }
+        }
+
+        // Get the linear region extents.
+        const auto linear_extents =
+            memory_layout.GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+                KMemoryRegionAttr_LinearMapped);
+        ASSERT(linear_extents.GetEndAddress() != 0);
+
+        // Setup the linear mapping region.
+        constexpr size_t LinearRegionAlign = Common::Size_1_GB;
+        const PAddr aligned_linear_phys_start =
+            Common::AlignDown(linear_extents.GetAddress(), LinearRegionAlign);
+        const size_t linear_region_size =
+            Common::AlignUp(linear_extents.GetEndAddress(), LinearRegionAlign) -
+            aligned_linear_phys_start;
+        const VAddr linear_region_start =
+            memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
+                linear_region_size, LinearRegionAlign, KMemoryRegionType_None, LinearRegionAlign);
+
+        const u64 linear_region_phys_to_virt_diff = linear_region_start - aligned_linear_phys_start;
+
+        // Map and create regions for all the linearly-mapped data.
+        {
+            PAddr cur_phys_addr = 0;
+            u64 cur_size = 0;
+            for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+                if (!region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
+                    continue;
+                }
+
+                ASSERT(region.GetEndAddress() != 0);
+
+                if (cur_size == 0) {
+                    cur_phys_addr = region.GetAddress();
+                    cur_size = region.GetSize();
+                } else if (cur_phys_addr + cur_size == region.GetAddress()) {
+                    cur_size += region.GetSize();
+                } else {
+                    cur_phys_addr = region.GetAddress();
+                    cur_size = region.GetSize();
+                }
+
+                const VAddr region_virt_addr =
+                    region.GetAddress() + linear_region_phys_to_virt_diff;
+                ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+                    region_virt_addr, region.GetSize(),
+                    GetTypeForVirtualLinearMapping(region.GetType())));
+                region.SetPairAddress(region_virt_addr);
+
+                KMemoryRegion* virt_region =
+                    memory_layout.GetVirtualMemoryRegionTree().FindModifiable(region_virt_addr);
+                ASSERT(virt_region != nullptr);
+                virt_region->SetPairAddress(region.GetAddress());
+            }
+        }
+
+        // Insert regions for the initial page table region.
+        ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+            resource_end_phys_addr, KernelPageTableHeapSize, KMemoryRegionType_DramKernelInitPt));
+        ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+            resource_end_phys_addr + linear_region_phys_to_virt_diff, KernelPageTableHeapSize,
+            KMemoryRegionType_VirtualDramKernelInitPt));
+
+        // All linear-mapped DRAM regions that we haven't tagged by this point will be allocated to
+        // some pool partition. Tag them.
+        for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+            if (region.GetType() == (KMemoryRegionType_Dram | KMemoryRegionAttr_LinearMapped)) {
+                region.SetType(KMemoryRegionType_DramPoolPartition);
+            }
+        }
+
+        // Setup all other memory regions needed to arrange the pool partitions.
+        Init::SetupPoolPartitionMemoryRegions(memory_layout);
+
+        // Cache all linear regions in their own trees for faster access, later.
+        memory_layout.InitializeLinearMemoryRegionTrees(aligned_linear_phys_start,
+                                                        linear_region_start);
+    }
+
     void InitializeMemoryLayout() {
-        // Initialize memory layout
+        // Derive the initial memory layout from the emulated board
-        constexpr KMemoryLayout layout{KMemoryLayout::GetDefaultLayout()};
+        KMemoryLayout memory_layout;
+        DeriveInitialMemoryLayout(memory_layout);
+
+        const auto system_pool = memory_layout.GetKernelSystemPoolRegionPhysicalExtents();
+        const auto applet_pool = memory_layout.GetKernelAppletPoolRegionPhysicalExtents();
+        const auto application_pool = memory_layout.GetKernelApplicationPoolRegionPhysicalExtents();
+
+        // Initialize memory managers
+        memory_manager = std::make_unique<KMemoryManager>();
+        memory_manager->InitializeManager(KMemoryManager::Pool::Application,
+                                          application_pool.GetAddress(),
+                                          application_pool.GetEndAddress());
+        memory_manager->InitializeManager(KMemoryManager::Pool::Applet, applet_pool.GetAddress(),
+                                          applet_pool.GetEndAddress());
+        memory_manager->InitializeManager(KMemoryManager::Pool::System, system_pool.GetAddress(),
+                                          system_pool.GetEndAddress());
+
+        // Setup memory regions for emulated processes
+        // TODO(bunnei): These should not be hardcoded regions initialized within the kernel
         constexpr std::size_t hid_size{0x40000};
         constexpr std::size_t font_size{0x1100000};
         constexpr std::size_t irs_size{0x8000};
         constexpr std::size_t time_size{0x1000};
-        constexpr PAddr hid_addr{layout.System().StartAddress()};
-        constexpr PAddr font_pa{layout.System().StartAddress() + hid_size};
-        constexpr PAddr irs_addr{layout.System().StartAddress() + hid_size + font_size};
-        constexpr PAddr time_addr{layout.System().StartAddress() + hid_size + font_size + irs_size};
 
-        // Initialize memory manager
+        const PAddr hid_phys_addr{system_pool.GetAddress()};
-        memory_manager = std::make_unique<KMemoryManager>();
+        const PAddr font_phys_addr{system_pool.GetAddress() + hid_size};
-        memory_manager->InitializeManager(KMemoryManager::Pool::Application,
+        const PAddr irs_phys_addr{system_pool.GetAddress() + hid_size + font_size};
-                                          layout.Application().StartAddress(),
+        const PAddr time_phys_addr{system_pool.GetAddress() + hid_size + font_size + irs_size};
-                                          layout.Application().EndAddress());
-        memory_manager->InitializeManager(KMemoryManager::Pool::Applet,
-                                          layout.Applet().StartAddress(),
-                                          layout.Applet().EndAddress());
-        memory_manager->InitializeManager(KMemoryManager::Pool::System,
-                                          layout.System().StartAddress(),
-                                          layout.System().EndAddress());
 
         hid_shared_mem = Kernel::KSharedMemory::Create(
-            system.Kernel(), system.DeviceMemory(), nullptr, {hid_addr, hid_size / PageSize},
+            system.Kernel(), system.DeviceMemory(), nullptr, {hid_phys_addr, hid_size / PageSize},
-            KMemoryPermission::None, KMemoryPermission::Read, hid_addr, hid_size,
+            KMemoryPermission::None, KMemoryPermission::Read, hid_phys_addr, hid_size,
             "HID:SharedMemory");
         font_shared_mem = Kernel::KSharedMemory::Create(
-            system.Kernel(), system.DeviceMemory(), nullptr, {font_pa, font_size / PageSize},
+            system.Kernel(), system.DeviceMemory(), nullptr, {font_phys_addr, font_size / PageSize},
-            KMemoryPermission::None, KMemoryPermission::Read, font_pa, font_size,
+            KMemoryPermission::None, KMemoryPermission::Read, font_phys_addr, font_size,
             "Font:SharedMemory");
         irs_shared_mem = Kernel::KSharedMemory::Create(
-            system.Kernel(), system.DeviceMemory(), nullptr, {irs_addr, irs_size / PageSize},
+            system.Kernel(), system.DeviceMemory(), nullptr, {irs_phys_addr, irs_size / PageSize},
-            KMemoryPermission::None, KMemoryPermission::Read, irs_addr, irs_size,
+            KMemoryPermission::None, KMemoryPermission::Read, irs_phys_addr, irs_size,
             "IRS:SharedMemory");
         time_shared_mem = Kernel::KSharedMemory::Create(
-            system.Kernel(), system.DeviceMemory(), nullptr, {time_addr, time_size / PageSize},
+            system.Kernel(), system.DeviceMemory(), nullptr, {time_phys_addr, time_size / PageSize},
-            KMemoryPermission::None, KMemoryPermission::Read, time_addr, time_size,
+            KMemoryPermission::None, KMemoryPermission::Read, time_phys_addr, time_size,
             "Time:SharedMemory");
 
         // Allocate slab heaps

src/core/hle/kernel/kernel.h

@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project / PPSSPP Project
+// Copyright 2021 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.