forked from suyu/suyu
core: hle: kernel: Updated implementation of svcSetHeapSize.
- Updates our svcSetHeapSize with latest HOS, furthermore allowing heap size to properly be extended/shrunk. - Validated with tests https://github.com/Atmosphere-NX/Atmosphere/blob/master/tests/TestSvc/source/test_set_heap_size.cpp.
This commit is contained in:
bunnei
parent
9a0648ff0a
commit
091463a429
6 changed files with 138 additions and 80 deletions
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@ -120,7 +120,7 @@ static_assert(static_cast<u32>(KMemoryState::CodeOut) == 0x00402015);
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enum class KMemoryPermission : u8 {
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None = 0,
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Mask = static_cast<u8>(~None),
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All = static_cast<u8>(~None),
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Read = 1 << 0,
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Write = 1 << 1,
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@ -264,9 +264,9 @@ ResultCode KPageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_
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ASSERT(heap_last < stack_start || stack_last < heap_start);
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ASSERT(heap_last < kmap_start || kmap_last < heap_start);
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current_heap_addr = heap_region_start;
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heap_capacity = 0;
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physical_memory_usage = 0;
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current_heap_end = heap_region_start;
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max_heap_size = 0;
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mapped_physical_memory_size = 0;
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memory_pool = pool;
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page_table_impl.Resize(address_space_width, PageBits);
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@ -306,7 +306,7 @@ ResultCode KPageTable::MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std:
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KMemoryState state{};
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KMemoryPermission perm{};
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CASCADE_CODE(CheckMemoryState(&state, &perm, nullptr, src_addr, size, KMemoryState::All,
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KMemoryState::Normal, KMemoryPermission::Mask,
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KMemoryState::Normal, KMemoryPermission::All,
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KMemoryPermission::ReadAndWrite, KMemoryAttribute::Mask,
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KMemoryAttribute::None, KMemoryAttribute::IpcAndDeviceMapped));
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@ -465,7 +465,7 @@ ResultCode KPageTable::MapPhysicalMemory(VAddr addr, std::size_t size) {
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MapPhysicalMemory(page_linked_list, addr, end_addr);
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physical_memory_usage += remaining_size;
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mapped_physical_memory_size += remaining_size;
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const std::size_t num_pages{size / PageSize};
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block_manager->Update(addr, num_pages, KMemoryState::Free, KMemoryPermission::None,
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@ -507,7 +507,7 @@ ResultCode KPageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) {
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auto process{system.Kernel().CurrentProcess()};
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process->GetResourceLimit()->Release(LimitableResource::PhysicalMemory, mapped_size);
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physical_memory_usage -= mapped_size;
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mapped_physical_memory_size -= mapped_size;
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return ResultSuccess;
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}
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@ -554,7 +554,7 @@ ResultCode KPageTable::Map(VAddr dst_addr, VAddr src_addr, std::size_t size) {
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KMemoryState src_state{};
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CASCADE_CODE(CheckMemoryState(
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&src_state, nullptr, nullptr, src_addr, size, KMemoryState::FlagCanAlias,
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KMemoryState::FlagCanAlias, KMemoryPermission::Mask, KMemoryPermission::ReadAndWrite,
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KMemoryState::FlagCanAlias, KMemoryPermission::All, KMemoryPermission::ReadAndWrite,
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KMemoryAttribute::Mask, KMemoryAttribute::None, KMemoryAttribute::IpcAndDeviceMapped));
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if (IsRegionMapped(dst_addr, size)) {
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@ -593,7 +593,7 @@ ResultCode KPageTable::Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size) {
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KMemoryState src_state{};
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CASCADE_CODE(CheckMemoryState(
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&src_state, nullptr, nullptr, src_addr, size, KMemoryState::FlagCanAlias,
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KMemoryState::FlagCanAlias, KMemoryPermission::Mask, KMemoryPermission::None,
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KMemoryState::FlagCanAlias, KMemoryPermission::All, KMemoryPermission::None,
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KMemoryAttribute::Mask, KMemoryAttribute::Locked, KMemoryAttribute::IpcAndDeviceMapped));
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KMemoryPermission dst_perm{};
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@ -784,7 +784,7 @@ ResultCode KPageTable::ReserveTransferMemory(VAddr addr, std::size_t size, KMemo
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CASCADE_CODE(CheckMemoryState(
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&state, nullptr, &attribute, addr, size,
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KMemoryState::FlagCanTransfer | KMemoryState::FlagReferenceCounted,
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KMemoryState::FlagCanTransfer | KMemoryState::FlagReferenceCounted, KMemoryPermission::Mask,
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KMemoryState::FlagCanTransfer | KMemoryState::FlagReferenceCounted, KMemoryPermission::All,
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KMemoryPermission::ReadAndWrite, KMemoryAttribute::Mask, KMemoryAttribute::None,
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KMemoryAttribute::IpcAndDeviceMapped));
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@ -859,61 +859,125 @@ ResultCode KPageTable::SetMemoryAttribute(VAddr addr, std::size_t size, KMemoryA
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return ResultSuccess;
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}
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ResultCode KPageTable::SetHeapCapacity(std::size_t new_heap_capacity) {
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ResultCode KPageTable::SetMaxHeapSize(std::size_t size) {
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// Lock the table.
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std::lock_guard lock{page_table_lock};
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heap_capacity = new_heap_capacity;
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// Only process page tables are allowed to set heap size.
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ASSERT(!this->IsKernel());
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max_heap_size = size;
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return ResultSuccess;
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}
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ResultVal<VAddr> KPageTable::SetHeapSize(std::size_t size) {
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if (size > heap_region_end - heap_region_start) {
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return ResultOutOfMemory;
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}
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const u64 previous_heap_size{GetHeapSize()};
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UNIMPLEMENTED_IF_MSG(previous_heap_size > size, "Heap shrink is unimplemented");
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// Increase the heap size
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ResultCode KPageTable::SetHeapSize(VAddr* out, std::size_t size) {
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// Try to perform a reduction in heap, instead of an extension.
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VAddr cur_address{};
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std::size_t allocation_size{};
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{
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std::lock_guard lock{page_table_lock};
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// Lock the table.
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std::lock_guard lk(page_table_lock);
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const u64 delta{size - previous_heap_size};
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// Validate that setting heap size is possible at all.
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R_UNLESS(!is_kernel, ResultOutOfMemory);
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R_UNLESS(size <= static_cast<std::size_t>(heap_region_end - heap_region_start),
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ResultOutOfMemory);
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R_UNLESS(size <= max_heap_size, ResultOutOfMemory);
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if (size < GetHeapSize()) {
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// The size being requested is less than the current size, so we need to free the end of
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// the heap.
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// Validate memory state.
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std::size_t num_allocator_blocks;
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R_TRY(this->CheckMemoryState(std::addressof(num_allocator_blocks),
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heap_region_start + size, GetHeapSize() - size,
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KMemoryState::All, KMemoryState::Normal,
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KMemoryPermission::All, KMemoryPermission::ReadAndWrite,
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KMemoryAttribute::All, KMemoryAttribute::None));
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// Unmap the end of the heap.
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const auto num_pages = (GetHeapSize() - size) / PageSize;
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R_TRY(Operate(heap_region_start + size, num_pages, KMemoryPermission::None,
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OperationType::Unmap));
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// Release the memory from the resource limit.
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system.Kernel().CurrentProcess()->GetResourceLimit()->Release(
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LimitableResource::PhysicalMemory, num_pages * PageSize);
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// Apply the memory block update.
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block_manager->Update(heap_region_start + size, num_pages, KMemoryState::Free,
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KMemoryPermission::None, KMemoryAttribute::None);
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// Update the current heap end.
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current_heap_end = heap_region_start + size;
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// Set the output.
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*out = heap_region_start;
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return ResultSuccess;
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} else if (size == GetHeapSize()) {
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// The size requested is exactly the current size.
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*out = heap_region_start;
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return ResultSuccess;
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} else {
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// We have to allocate memory. Determine how much to allocate and where while the table
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// is locked.
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cur_address = current_heap_end;
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allocation_size = size - GetHeapSize();
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}
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}
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// Reserve memory for the heap extension.
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KScopedResourceReservation memory_reservation(
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system.Kernel().CurrentProcess()->GetResourceLimit(), LimitableResource::PhysicalMemory,
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delta);
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if (!memory_reservation.Succeeded()) {
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LOG_ERROR(Kernel, "Could not reserve heap extension of size {:X} bytes", delta);
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return ResultLimitReached;
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}
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allocation_size);
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R_UNLESS(memory_reservation.Succeeded(), ResultLimitReached);
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// Allocate pages for the heap extension.
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KPageLinkedList page_linked_list;
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const std::size_t num_pages{delta / PageSize};
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R_TRY(system.Kernel().MemoryManager().Allocate(page_linked_list, allocation_size / PageSize,
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memory_pool));
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CASCADE_CODE(
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system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool));
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// Map the pages.
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{
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// Lock the table.
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std::lock_guard lk(page_table_lock);
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if (IsRegionMapped(current_heap_addr, delta)) {
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return ResultInvalidCurrentMemory;
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// Ensure that the heap hasn't changed since we began executing.
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ASSERT(cur_address == current_heap_end);
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// Check the memory state.
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std::size_t num_allocator_blocks{};
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R_TRY(this->CheckMemoryState(std::addressof(num_allocator_blocks), current_heap_end,
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allocation_size, KMemoryState::All, KMemoryState::Free,
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KMemoryPermission::None, KMemoryPermission::None,
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KMemoryAttribute::None, KMemoryAttribute::None));
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// Map the pages.
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const auto num_pages = allocation_size / PageSize;
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R_TRY(Operate(current_heap_end, num_pages, page_linked_list, OperationType::MapGroup));
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// Clear all the newly allocated pages.
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for (std::size_t cur_page = 0; cur_page < num_pages; ++cur_page) {
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std::memset(system.Memory().GetPointer(current_heap_end + (cur_page * PageSize)), 0,
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PageSize);
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}
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CASCADE_CODE(
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Operate(current_heap_addr, num_pages, page_linked_list, OperationType::MapGroup));
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// Succeeded in allocation, commit the resource reservation
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// We succeeded, so commit our memory reservation.
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memory_reservation.Commit();
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block_manager->Update(current_heap_addr, num_pages, KMemoryState::Normal,
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KMemoryPermission::ReadAndWrite);
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// Apply the memory block update.
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block_manager->Update(current_heap_end, num_pages, KMemoryState::Normal,
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KMemoryPermission::ReadAndWrite, KMemoryAttribute::None);
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current_heap_addr = heap_region_start + size;
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// Update the current heap end.
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current_heap_end = heap_region_start + size;
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// Set the output.
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*out = heap_region_start;
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return ResultSuccess;
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}
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return heap_region_start;
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}
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ResultVal<VAddr> KPageTable::AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align,
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@ -1005,7 +1069,7 @@ ResultCode KPageTable::LockForCodeMemory(VAddr addr, std::size_t size) {
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if (const ResultCode result{CheckMemoryState(
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nullptr, &old_perm, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
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KMemoryState::FlagCanCodeMemory, KMemoryPermission::Mask,
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KMemoryState::FlagCanCodeMemory, KMemoryPermission::All,
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KMemoryPermission::UserReadWrite, KMemoryAttribute::All, KMemoryAttribute::None)};
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result.IsError()) {
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return result;
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@ -1058,9 +1122,8 @@ ResultCode KPageTable::InitializeMemoryLayout(VAddr start, VAddr end) {
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bool KPageTable::IsRegionMapped(VAddr address, u64 size) {
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return CheckMemoryState(address, size, KMemoryState::All, KMemoryState::Free,
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KMemoryPermission::Mask, KMemoryPermission::None,
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KMemoryAttribute::Mask, KMemoryAttribute::None,
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KMemoryAttribute::IpcAndDeviceMapped)
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KMemoryPermission::All, KMemoryPermission::None, KMemoryAttribute::Mask,
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KMemoryAttribute::None, KMemoryAttribute::IpcAndDeviceMapped)
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.IsError();
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}
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@ -50,8 +50,8 @@ public:
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ResultCode SetMemoryPermission(VAddr addr, std::size_t size, Svc::MemoryPermission perm);
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ResultCode SetMemoryAttribute(VAddr addr, std::size_t size, KMemoryAttribute mask,
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KMemoryAttribute value);
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ResultCode SetHeapCapacity(std::size_t new_heap_capacity);
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ResultVal<VAddr> SetHeapSize(std::size_t size);
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ResultCode SetMaxHeapSize(std::size_t size);
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ResultCode SetHeapSize(VAddr* out, std::size_t size);
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ResultVal<VAddr> AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align,
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bool is_map_only, VAddr region_start,
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std::size_t region_num_pages, KMemoryState state,
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@ -183,14 +183,15 @@ public:
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constexpr VAddr GetAliasCodeRegionSize() const {
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return alias_code_region_end - alias_code_region_start;
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}
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size_t GetNormalMemorySize() {
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std::lock_guard lk(page_table_lock);
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return GetHeapSize() + mapped_physical_memory_size;
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}
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constexpr std::size_t GetAddressSpaceWidth() const {
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return address_space_width;
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}
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constexpr std::size_t GetHeapSize() {
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return current_heap_addr - heap_region_start;
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}
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constexpr std::size_t GetTotalHeapSize() {
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return GetHeapSize() + physical_memory_usage;
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constexpr std::size_t GetHeapSize() const {
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return current_heap_end - heap_region_start;
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}
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constexpr bool IsInsideAddressSpace(VAddr address, std::size_t size) const {
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return address_space_start <= address && address + size - 1 <= address_space_end - 1;
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@ -270,10 +271,8 @@ private:
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VAddr code_region_end{};
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VAddr alias_code_region_start{};
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VAddr alias_code_region_end{};
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VAddr current_heap_addr{};
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std::size_t heap_capacity{};
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std::size_t physical_memory_usage{};
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std::size_t mapped_physical_memory_size{};
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std::size_t max_heap_size{};
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std::size_t max_physical_memory_size{};
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std::size_t address_space_width{};
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@ -172,7 +172,7 @@ void KProcess::DecrementThreadCount() {
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u64 KProcess::GetTotalPhysicalMemoryAvailable() const {
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const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) +
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page_table->GetTotalHeapSize() + GetSystemResourceSize() + image_size +
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page_table->GetNormalMemorySize() + GetSystemResourceSize() + image_size +
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main_thread_stack_size};
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if (const auto pool_size = kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application);
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capacity != pool_size) {
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@ -189,7 +189,7 @@ u64 KProcess::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const {
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}
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u64 KProcess::GetTotalPhysicalMemoryUsed() const {
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return image_size + main_thread_stack_size + page_table->GetTotalHeapSize() +
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return image_size + main_thread_stack_size + page_table->GetNormalMemorySize() +
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GetSystemResourceSize();
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}
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@ -410,8 +410,8 @@ void KProcess::Run(s32 main_thread_priority, u64 stack_size) {
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resource_limit->Reserve(LimitableResource::Threads, 1);
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resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
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const std::size_t heap_capacity{memory_usage_capacity - main_thread_stack_size - image_size};
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ASSERT(!page_table->SetHeapCapacity(heap_capacity).IsError());
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const std::size_t heap_capacity{memory_usage_capacity - (main_thread_stack_size + image_size)};
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ASSERT(!page_table->SetMaxHeapSize(heap_capacity).IsError());
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ChangeStatus(ProcessStatus::Running);
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@ -135,24 +135,15 @@ enum class ResourceLimitValueType {
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} // Anonymous namespace
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/// Set the process heap to a given Size. It can both extend and shrink the heap.
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static ResultCode SetHeapSize(Core::System& system, VAddr* heap_addr, u64 heap_size) {
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LOG_TRACE(Kernel_SVC, "called, heap_size=0x{:X}", heap_size);
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static ResultCode SetHeapSize(Core::System& system, VAddr* out_address, u64 size) {
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LOG_TRACE(Kernel_SVC, "called, heap_size=0x{:X}", size);
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// Size must be a multiple of 0x200000 (2MB) and be equal to or less than 8GB.
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if ((heap_size % 0x200000) != 0) {
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LOG_ERROR(Kernel_SVC, "The heap size is not a multiple of 2MB, heap_size=0x{:016X}",
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heap_size);
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return ResultInvalidSize;
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}
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// Validate size.
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R_UNLESS(Common::IsAligned(size, HeapSizeAlignment), ResultInvalidSize);
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R_UNLESS(size < MainMemorySizeMax, ResultInvalidSize);
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if (heap_size >= 0x200000000) {
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LOG_ERROR(Kernel_SVC, "The heap size is not less than 8GB, heap_size=0x{:016X}", heap_size);
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return ResultInvalidSize;
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}
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auto& page_table{system.Kernel().CurrentProcess()->PageTable()};
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CASCADE_RESULT(*heap_addr, page_table.SetHeapSize(heap_size));
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// Set the heap size.
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R_TRY(system.Kernel().CurrentProcess()->PageTable().SetHeapSize(out_address, size));
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return ResultSuccess;
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}
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@ -5,6 +5,7 @@
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#pragma once
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#include "common/common_types.h"
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#include "common/literals.h"
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namespace Kernel {
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using Handle = u32;
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@ -12,9 +13,13 @@ using Handle = u32;
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namespace Kernel::Svc {
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using namespace Common::Literals;
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constexpr s32 ArgumentHandleCountMax = 0x40;
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constexpr u32 HandleWaitMask{1u << 30};
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constexpr inline std::size_t HeapSizeAlignment = 2_MiB;
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constexpr inline Handle InvalidHandle = Handle(0);
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enum PseudoHandle : Handle {
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