diff options
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r-- | src/core/hle/kernel/k_memory_manager.cpp | 15 | ||||
-rw-r--r-- | src/core/hle/kernel/k_memory_manager.h | 15 | ||||
-rw-r--r-- | src/core/hle/kernel/k_page_table.cpp | 17 | ||||
-rw-r--r-- | src/core/hle/kernel/k_page_table.h | 1 | ||||
-rw-r--r-- | src/core/hle/kernel/kernel.cpp | 2 |
5 files changed, 34 insertions, 16 deletions
diff --git a/src/core/hle/kernel/k_memory_manager.cpp b/src/core/hle/kernel/k_memory_manager.cpp index 0166df0a5..1b44541b1 100644 --- a/src/core/hle/kernel/k_memory_manager.cpp +++ b/src/core/hle/kernel/k_memory_manager.cpp @@ -8,12 +8,16 @@ #include "common/assert.h" #include "common/common_types.h" #include "common/scope_exit.h" +#include "core/core.h" +#include "core/device_memory.h" #include "core/hle/kernel/k_memory_manager.h" #include "core/hle/kernel/k_page_linked_list.h" #include "core/hle/kernel/svc_results.h" namespace Kernel { +KMemoryManager::KMemoryManager(Core::System& system_) : system{system_} {} + std::size_t KMemoryManager::Impl::Initialize(Pool new_pool, u64 start_address, u64 end_address) { const auto size{end_address - start_address}; @@ -81,7 +85,7 @@ VAddr KMemoryManager::AllocateAndOpenContinuous(std::size_t num_pages, std::size } ResultCode KMemoryManager::Allocate(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, - Direction dir) { + Direction dir, u32 heap_fill_value) { ASSERT(page_list.GetNumPages() == 0); // Early return if we're allocating no pages @@ -139,6 +143,12 @@ ResultCode KMemoryManager::Allocate(KPageLinkedList& page_list, std::size_t num_ } } + // Clear allocated memory. + for (const auto& it : page_list.Nodes()) { + std::memset(system.DeviceMemory().GetPointer(it.GetAddress()), heap_fill_value, + it.GetSize()); + } + // Only succeed if we allocated as many pages as we wanted if (num_pages) { return ResultOutOfMemory; @@ -146,11 +156,12 @@ ResultCode KMemoryManager::Allocate(KPageLinkedList& page_list, std::size_t num_ // We succeeded! group_guard.Cancel(); + return ResultSuccess; } ResultCode KMemoryManager::Free(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, - Direction dir) { + Direction dir, u32 heap_fill_value) { // Early return if we're freeing no pages if (!num_pages) { return ResultSuccess; diff --git a/src/core/hle/kernel/k_memory_manager.h b/src/core/hle/kernel/k_memory_manager.h index 39badc5f1..abd6c8ace 100644 --- a/src/core/hle/kernel/k_memory_manager.h +++ b/src/core/hle/kernel/k_memory_manager.h @@ -12,6 +12,10 @@ #include "core/hle/kernel/k_page_heap.h" #include "core/hle/result.h" +namespace Core { +class System; +} + namespace Kernel { class KPageLinkedList; @@ -42,7 +46,7 @@ public: Mask = (0xF << Shift), }; - KMemoryManager() = default; + explicit KMemoryManager(Core::System& system_); constexpr std::size_t GetSize(Pool pool) const { return managers[static_cast<std::size_t>(pool)].GetSize(); @@ -51,10 +55,10 @@ public: void InitializeManager(Pool pool, u64 start_address, u64 end_address); VAddr AllocateAndOpenContinuous(size_t num_pages, size_t align_pages, u32 option); - ResultCode Allocate(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, - Direction dir = Direction::FromFront); - ResultCode Free(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, - Direction dir = Direction::FromFront); + ResultCode Allocate(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, Direction dir, + u32 heap_fill_value = 0); + ResultCode Free(KPageLinkedList& page_list, std::size_t num_pages, Pool pool, Direction dir, + u32 heap_fill_value = 0); static constexpr std::size_t MaxManagerCount = 10; @@ -129,6 +133,7 @@ private: }; private: + Core::System& system; std::array<std::mutex, static_cast<std::size_t>(Pool::Count)> pool_locks; std::array<Impl, MaxManagerCount> managers; }; diff --git a/src/core/hle/kernel/k_page_table.cpp b/src/core/hle/kernel/k_page_table.cpp index 27d86c9a4..b650ea31d 100644 --- a/src/core/hle/kernel/k_page_table.cpp +++ b/src/core/hle/kernel/k_page_table.cpp @@ -289,8 +289,8 @@ ResultCode KPageTable::MapProcessCode(VAddr addr, std::size_t num_pages, KMemory } KPageLinkedList page_linked_list; - CASCADE_CODE( - system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool)); + CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool, + allocation_option)); CASCADE_CODE(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup)); block_manager->Update(addr, num_pages, state, perm); @@ -457,8 +457,8 @@ ResultCode KPageTable::MapPhysicalMemory(VAddr addr, std::size_t size) { KPageLinkedList page_linked_list; - CASCADE_CODE( - system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages, memory_pool)); + CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages, + memory_pool, allocation_option)); // We succeeded, so commit the memory reservation. memory_reservation.Commit(); @@ -541,7 +541,8 @@ ResultCode KPageTable::UnmapMemory(VAddr addr, std::size_t size) { } const std::size_t num_pages{size / PageSize}; - system.Kernel().MemoryManager().Free(page_linked_list, num_pages, memory_pool); + system.Kernel().MemoryManager().Free(page_linked_list, num_pages, memory_pool, + allocation_option); block_manager->Update(addr, num_pages, KMemoryState::Free); @@ -960,7 +961,7 @@ ResultCode KPageTable::SetHeapSize(VAddr* out, std::size_t size) { // Allocate pages for the heap extension. KPageLinkedList page_linked_list; R_TRY(system.Kernel().MemoryManager().Allocate(page_linked_list, allocation_size / PageSize, - memory_pool)); + memory_pool, allocation_option)); // Map the pages. { @@ -1027,8 +1028,8 @@ ResultVal<VAddr> KPageTable::AllocateAndMapMemory(std::size_t needed_num_pages, CASCADE_CODE(Operate(addr, needed_num_pages, perm, OperationType::Map, map_addr)); } else { KPageLinkedList page_group; - CASCADE_CODE( - system.Kernel().MemoryManager().Allocate(page_group, needed_num_pages, memory_pool)); + CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_group, needed_num_pages, + memory_pool, allocation_option)); CASCADE_CODE(Operate(addr, needed_num_pages, page_group, OperationType::MapGroup)); } diff --git a/src/core/hle/kernel/k_page_table.h b/src/core/hle/kernel/k_page_table.h index 274644181..f67986e91 100644 --- a/src/core/hle/kernel/k_page_table.h +++ b/src/core/hle/kernel/k_page_table.h @@ -303,6 +303,7 @@ private: bool is_aslr_enabled{}; KMemoryManager::Pool memory_pool{KMemoryManager::Pool::Application}; + KMemoryManager::Direction allocation_option{KMemoryManager::Direction::FromFront}; Common::PageTable page_table_impl; diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp index e1e17db13..ccef17fb9 100644 --- a/src/core/hle/kernel/kernel.cpp +++ b/src/core/hle/kernel/kernel.cpp @@ -629,7 +629,7 @@ struct KernelCore::Impl { const auto application_pool = memory_layout.GetKernelApplicationPoolRegionPhysicalExtents(); // Initialize memory managers - memory_manager = std::make_unique<KMemoryManager>(); + memory_manager = std::make_unique<KMemoryManager>(system); memory_manager->InitializeManager(KMemoryManager::Pool::Application, application_pool.GetAddress(), application_pool.GetEndAddress()); |