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Use shared_ptr for PageTable

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This commit is contained in:
Hamish Milne
2020-01-05 16:35:01 +00:00
committed by zhupengfei
parent e4afa8e512
commit 96432589bd
10 changed files with 34 additions and 33 deletions
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4
src/core/hle/kernel/kernel.cpp
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@@ -52,10 +52,10 @@ std::shared_ptr<Process> KernelSystem::GetCurrentProcess() const {
void KernelSystem::SetCurrentProcess(std::shared_ptr<Process> process) {
current_process = process;
SetCurrentMemoryPageTable(&process->vm_manager.page_table);
SetCurrentMemoryPageTable(process->vm_manager.page_table);
}
void KernelSystem::SetCurrentMemoryPageTable(Memory::PageTable* page_table) {
void KernelSystem::SetCurrentMemoryPageTable(std::shared_ptr<Memory::PageTable> page_table) {
memory.SetCurrentPageTable(page_table);
if (current_cpu != nullptr) {
current_cpu->PageTableChanged(); // notify the CPU the page table in memory has changed

2
src/core/hle/kernel/kernel.h
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@@ -214,7 +214,7 @@ public:
std::shared_ptr<Process> GetCurrentProcess() const;
void SetCurrentProcess(std::shared_ptr<Process> process);
void SetCurrentMemoryPageTable(Memory::PageTable* page_table);
void SetCurrentMemoryPageTable(std::shared_ptr<Memory::PageTable> page_table);
void SetCPU(std::shared_ptr<ARM_Interface> cpu);

4
src/core/hle/kernel/process.cpp
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@@ -435,7 +435,7 @@ ResultCode Process::Unmap(VAddr target, VAddr source, u32 size, VMAPermission pe
Kernel::Process::Process(KernelSystem& kernel)
: Object(kernel), handle_table(kernel), vm_manager(kernel.memory), kernel(kernel) {
kernel.memory.RegisterPageTable(&vm_manager.page_table);
kernel.memory.RegisterPageTable(vm_manager.page_table);
}
Kernel::Process::~Process() {
// Release all objects this process owns first so that their potential destructor can do clean
@@ -444,7 +444,7 @@ Kernel::Process::~Process() {
// memory etc.) even if they are still referenced by other processes.
handle_table.Clear();
kernel.memory.UnregisterPageTable(&vm_manager.page_table);
kernel.memory.UnregisterPageTable(vm_manager.page_table);
}
std::shared_ptr<Process> KernelSystem::GetProcessById(u32 process_id) const {

11
src/core/hle/kernel/vm_manager.cpp
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@@ -37,7 +37,8 @@ bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
return true;
}
VMManager::VMManager(Memory::MemorySystem& memory) : memory(memory) {
VMManager::VMManager(Memory::MemorySystem& memory)
: memory(memory), page_table(std::make_shared<Memory::PageTable>()) {
Reset();
}
@@ -51,7 +52,7 @@ void VMManager::Reset() {
initial_vma.size = MAX_ADDRESS;
vma_map.emplace(initial_vma.base, initial_vma);
page_table.Clear();
page_table->Clear();
UpdatePageTableForVMA(initial_vma);
}
@@ -348,13 +349,13 @@ VMManager::VMAIter VMManager::MergeAdjacent(VMAIter iter) {
void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
switch (vma.type) {
case VMAType::Free:
memory.UnmapRegion(page_table, vma.base, vma.size);
memory.UnmapRegion(*page_table, vma.base, vma.size);
break;
case VMAType::BackingMemory:
memory.MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory);
memory.MapMemoryRegion(*page_table, vma.base, vma.size, vma.backing_memory);
break;
case VMAType::MMIO:
memory.MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler);
memory.MapIoRegion(*page_table, vma.base, vma.size, vma.mmio_handler);
break;
}
}

2
src/core/hle/kernel/vm_manager.h
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@@ -209,7 +209,7 @@ public:
/// Each VMManager has its own page table, which is set as the main one when the owning process
/// is scheduled.
Memory::PageTable page_table;
std::shared_ptr<Memory::PageTable> page_table;
private:
using VMAIter = decltype(vma_map)::iterator;