Kernel: make config_mem and MapSharedPages members of KernelSystem

src/core/hle/kernel/config_mem.cpp

@@ -9,9 +9,7 @@
 
 namespace ConfigMem {
 
-ConfigMemDef config_mem;
-
-void Init() {
+Handler::Handler() {
     std::memset(&config_mem, 0, sizeof(config_mem));
 
     // Values extracted from firmware 11.2.0-35E
@@ -28,4 +26,8 @@ void Init() {
     config_mem.firm_ctr_sdk_ver = 0x0000F297;
 }
 
+ConfigMemDef& Handler::GetConfigMem() {
+    return config_mem;
+}
+
 } // namespace ConfigMem

src/core/hle/kernel/config_mem.h

@@ -49,8 +49,13 @@ struct ConfigMemDef {
 static_assert(sizeof(ConfigMemDef) == Memory::CONFIG_MEMORY_SIZE,
               "Config Memory structure size is wrong");
 
-extern ConfigMemDef config_mem;
+class Handler {
+public:
+    Handler();
+    ConfigMemDef& GetConfigMem();
 
-void Init();
+private:
+    ConfigMemDef config_mem;
+};
 
 } // namespace ConfigMem

src/core/hle/kernel/kernel.cpp

@@ -16,9 +16,7 @@ namespace Kernel {
 
 /// Initialize the kernel
 KernelSystem::KernelSystem(u32 system_mode) {
-    ConfigMem::Init();
-
-    Kernel::MemoryInit(system_mode);
+    MemoryInit(system_mode);
 
     resource_limits = std::make_unique<ResourceLimitList>(*this);
     thread_manager = std::make_unique<ThreadManager>();

src/core/hle/kernel/kernel.h

@@ -12,6 +12,10 @@
 #include "common/common_types.h"
 #include "core/hle/result.h"
 
+namespace ConfigMem {
+class Handler;
+}
+
 namespace Kernel {
 
 class AddressArbiter;
@@ -30,6 +34,7 @@ class ResourceLimitList;
 class SharedMemory;
 class ThreadManager;
 class TimerManager;
+class VMManager;
 
 enum class ResetType {
     OneShot,
@@ -195,7 +200,11 @@ public:
     TimerManager& GetTimerManager();
     const TimerManager& GetTimerManager() const;
 
+    void MapSharedPages(VMManager& address_space);
+
 private:
+    void MemoryInit(u32 mem_type);
+
     std::unique_ptr<ResourceLimitList> resource_limits;
     std::atomic<u32> next_object_id{0};
 
@@ -210,6 +219,8 @@ private:
 
     std::unique_ptr<ThreadManager> thread_manager;
     std::unique_ptr<TimerManager> timer_manager;
+
+    std::unique_ptr<ConfigMem::Handler> config_mem_handler;
 };
 
 } // namespace Kernel

src/core/hle/kernel/memory.cpp

@@ -41,7 +41,7 @@ static const u32 memory_region_sizes[8][3] = {
     {0x0B200000, 0x02E00000, 0x02000000}, // 7
 };
 
-void MemoryInit(u32 mem_type) {
+void KernelSystem::MemoryInit(u32 mem_type) {
     // TODO(yuriks): On the n3DS, all o3DS configurations (<=5) are forced to 6 instead.
     ASSERT_MSG(mem_type <= 5, "New 3DS memory configuration aren't supported yet!");
     ASSERT(mem_type != 1);
@@ -64,7 +64,8 @@ void MemoryInit(u32 mem_type) {
     // We must've allocated the entire FCRAM by the end
     ASSERT(base == Memory::FCRAM_SIZE);
 
-    using ConfigMem::config_mem;
+    config_mem_handler = std::make_unique<ConfigMem::Handler>();
+    auto& config_mem = config_mem_handler->GetConfigMem();
     config_mem.app_mem_type = mem_type;
     // app_mem_malloc does not always match the configured size for memory_region[0]: in case the
     // n3DS type override is in effect it reports the size the game expects, not the real one.
@@ -152,12 +153,13 @@ void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mappin
                             mapping.read_only ? VMAPermission::Read : VMAPermission::ReadWrite);
 }
 
-void MapSharedPages(VMManager& address_space) {
-    auto cfg_mem_vma = address_space
-                           .MapBackingMemory(Memory::CONFIG_MEMORY_VADDR,
-                                             reinterpret_cast<u8*>(&ConfigMem::config_mem),
-                                             Memory::CONFIG_MEMORY_SIZE, MemoryState::Shared)
-                           .Unwrap();
+void KernelSystem::MapSharedPages(VMManager& address_space) {
+    auto cfg_mem_vma =
+        address_space
+            .MapBackingMemory(Memory::CONFIG_MEMORY_VADDR,
+                              reinterpret_cast<u8*>(&config_mem_handler->GetConfigMem()),
+                              Memory::CONFIG_MEMORY_SIZE, MemoryState::Shared)
+            .Unwrap();
     address_space.Reprotect(cfg_mem_vma, VMAPermission::Read);
 
     auto shared_page_vma =

src/core/hle/kernel/memory.h

@@ -20,12 +20,10 @@ struct MemoryRegionInfo {
     std::shared_ptr<std::vector<u8>> linear_heap_memory;
 };
 
-void MemoryInit(u32 mem_type);
 void MemoryShutdown();
 MemoryRegionInfo* GetMemoryRegion(MemoryRegion region);
 
 void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping);
-void MapSharedPages(VMManager& address_space);
 
 extern MemoryRegionInfo memory_regions[3];
 } // namespace Kernel

src/core/hle/kernel/process.cpp

@@ -143,7 +143,7 @@ void Process::Run(s32 main_thread_priority, u32 stack_size) {
     memory_region->used += stack_size;
 
     // Map special address mappings
-    MapSharedPages(vm_manager);
+    kernel.MapSharedPages(vm_manager);
     for (const auto& mapping : address_mappings) {
         HandleSpecialMapping(vm_manager, mapping);
     }

src/tests/core/memory/memory.cpp

@@ -25,7 +25,7 @@ TEST_CASE("Memory::IsValidVirtualAddress", "[core][memory]") {
 
     SECTION("CONFIG_MEMORY_VADDR and SHARED_PAGE_VADDR should be valid after mapping them") {
         auto process = kernel.CreateProcess(kernel.CreateCodeSet("", 0));
-        Kernel::MapSharedPages(process->vm_manager);
+        kernel.MapSharedPages(process->vm_manager);
         CHECK(Memory::IsValidVirtualAddress(*process, Memory::CONFIG_MEMORY_VADDR) == true);
         CHECK(Memory::IsValidVirtualAddress(*process, Memory::SHARED_PAGE_VADDR) == true);
     }
@@ -47,7 +47,7 @@ TEST_CASE("Memory::IsValidVirtualAddress", "[core][memory]") {
 
     SECTION("Unmapping a VAddr should make it invalid") {
         auto process = kernel.CreateProcess(kernel.CreateCodeSet("", 0));
-        Kernel::MapSharedPages(process->vm_manager);
+        kernel.MapSharedPages(process->vm_manager);
         process->vm_manager.UnmapRange(Memory::CONFIG_MEMORY_VADDR, Memory::CONFIG_MEMORY_SIZE);
         CHECK(Memory::IsValidVirtualAddress(*process, Memory::CONFIG_MEMORY_VADDR) == false);
     }