diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp
index cb5c166960..178589cbb1 100644
--- a/src/core/hle/kernel/shared_memory.cpp
+++ b/src/core/hle/kernel/shared_memory.cpp
@@ -12,11 +12,15 @@ namespace Kernel {
SharedMemory::SharedMemory() {}
SharedMemory::~SharedMemory() {}
-SharedPtr<SharedMemory> SharedMemory::Create(std::string name) {
+SharedPtr<SharedMemory> SharedMemory::Create(u32 size, MemoryPermission permissions,
+ MemoryPermission other_permissions, std::string name) {
SharedPtr<SharedMemory> shared_memory(new SharedMemory);
shared_memory->name = std::move(name);
shared_memory->base_address = 0x0;
+ shared_memory->size = size;
+ shared_memory->permissions = permissions;
+ shared_memory->other_permissions = other_permissions;
return shared_memory;
}
@@ -24,7 +28,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(std::string name) {
ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
MemoryPermission other_permissions) {
- if (address < Memory::SHARED_MEMORY_VADDR || address >= Memory::SHARED_MEMORY_VADDR_END) {
+ if (address < Memory::SHARED_MEMORY_VADDR || address + size >= Memory::SHARED_MEMORY_VADDR_END) {
LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X outside of shared mem bounds!",
GetObjectId(), address);
// TODO: Verify error code with hardware
@@ -32,21 +36,19 @@ ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
}
+ // TODO: Test permissions
+
this->base_address = address;
- this->permissions = permissions;
- this->other_permissions = other_permissions;
return RESULT_SUCCESS;
}
-ResultVal<u8*> SharedMemory::GetPointer(u32 offset) {
+u8* SharedMemory::GetPointer(u32 offset) {
if (base_address != 0)
- return MakeResult<u8*>(Memory::GetPointer(base_address + offset));
+ return Memory::GetPointer(base_address + offset);
LOG_ERROR(Kernel_SVC, "memory block id=%u not mapped!", GetObjectId());
- // TODO(yuriks): Verify error code.
- return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel,
- ErrorSummary::InvalidState, ErrorLevel::Permanent);
+ return nullptr;
}
} // namespace
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h
index 5833b411ce..2042668969 100644
--- a/src/core/hle/kernel/shared_memory.h
+++ b/src/core/hle/kernel/shared_memory.h
@@ -27,11 +27,16 @@ class SharedMemory final : public Object {
public:
/**
* Creates a shared memory object
- * @param name Optional object name, used only for debugging purposes.
+ * @param size Size of the memory block. Must be page-aligned.
+ * @param permissions Permission restrictions applied to the process which created the block.
+ * @param other_permissions Permission restrictions applied to other processes mapping the block.
+ * @param name Optional object name, used for debugging purposes.
*/
- static SharedPtr<SharedMemory> Create(std::string name = "Unknown");
+ static SharedPtr<SharedMemory> Create(u32 size, MemoryPermission permissions,
+ MemoryPermission other_permissions, std::string name = "Unknown");
std::string GetTypeName() const override { return "SharedMemory"; }
+ std::string GetName() const override { return name; }
static const HandleType HANDLE_TYPE = HandleType::SharedMemory;
HandleType GetHandleType() const override { return HANDLE_TYPE; }
@@ -49,12 +54,18 @@ public:
* @param offset Offset from the start of the shared memory block to get pointer
* @return Pointer to the shared memory block from the specified offset
*/
- ResultVal<u8*> GetPointer(u32 offset = 0);
+ u8* GetPointer(u32 offset = 0);
- VAddr base_address; ///< Address of shared memory block in RAM
- MemoryPermission permissions; ///< Permissions of shared memory block (SVC field)
- MemoryPermission other_permissions; ///< Other permissions of shared memory block (SVC field)
- std::string name; ///< Name of shared memory object (optional)
+ /// Address of shared memory block in the process.
+ VAddr base_address;
+ /// Size of the memory block. Page-aligned.
+ u32 size;
+ /// Permission restrictions applied to the process which created the block.
+ MemoryPermission permissions;
+ /// Permission restrictions applied to other processes mapping the block.
+ MemoryPermission other_permissions;
+ /// Name of shared memory object.
+ std::string name;
private:
SharedMemory();
diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 560c9dcf6c..09d463dd51 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -304,7 +304,9 @@ void Init() {
file.ReadBytes(shared_font.data(), (size_t)file.GetSize());
// Create shared font memory object
- shared_font_mem = Kernel::SharedMemory::Create("APT_U:shared_font_mem");
+ using Kernel::MemoryPermission;
+ shared_font_mem = Kernel::SharedMemory::Create(3 * 1024 * 1024, // 3MB
+ MemoryPermission::ReadWrite, MemoryPermission::Read, "APT_U:shared_font_mem");
} else {
LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
shared_font_mem = nullptr;
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index 8da063bd2f..e2b6b0b021 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -35,8 +35,7 @@ u32 g_thread_id = 1;
/// Gets a pointer to a thread command buffer in GSP shared memory
static inline u8* GetCommandBuffer(u32 thread_id) {
- ResultVal<u8*> ptr = g_shared_memory->GetPointer(0x800 + (thread_id * sizeof(CommandBuffer)));
- return ptr.ValueOr(nullptr);
+ return g_shared_memory->GetPointer(0x800 + (thread_id * sizeof(CommandBuffer)));
}
static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index) {
@@ -44,14 +43,14 @@ static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_in
// For each thread there are two FrameBufferUpdate fields
u32 offset = 0x200 + (2 * thread_id + screen_index) * sizeof(FrameBufferUpdate);
- ResultVal<u8*> ptr = g_shared_memory->GetPointer(offset);
- return reinterpret_cast<FrameBufferUpdate*>(ptr.ValueOr(nullptr));
+ u8* ptr = g_shared_memory->GetPointer(offset);
+ return reinterpret_cast<FrameBufferUpdate*>(ptr);
}
/// Gets a pointer to the interrupt relay queue for a given thread index
static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
- ResultVal<u8*> ptr = g_shared_memory->GetPointer(sizeof(InterruptRelayQueue) * thread_id);
- return reinterpret_cast<InterruptRelayQueue*>(ptr.ValueOr(nullptr));
+ u8* ptr = g_shared_memory->GetPointer(sizeof(InterruptRelayQueue) * thread_id);
+ return reinterpret_cast<InterruptRelayQueue*>(ptr);
}
/**
@@ -288,7 +287,10 @@ static void RegisterInterruptRelayQueue(Service::Interface* self) {
g_interrupt_event = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[3]);
ASSERT_MSG((g_interrupt_event != nullptr), "handle is not valid!");
- g_shared_memory = Kernel::SharedMemory::Create("GSPSharedMem");
+
+ using Kernel::MemoryPermission;
+ g_shared_memory = Kernel::SharedMemory::Create(0x1000, MemoryPermission::ReadWrite,
+ MemoryPermission::ReadWrite, "GSPSharedMem");
Handle shmem_handle = Kernel::g_handle_table.Create(g_shared_memory).MoveFrom();
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index dd85848d06..9695f7e566 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -48,7 +48,7 @@ static u32 next_touch_index;
// * Set PadData.current_state.circle_right = 1 if current PadEntry.circle_pad_y <= -41
void Update() {
- SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer().ValueOr(nullptr));
+ SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
const PadState state = VideoCore::g_emu_window->GetPadState();
if (mem == nullptr) {
@@ -163,7 +163,9 @@ void Init() {
AddService(new HID_U_Interface);
AddService(new HID_SPVR_Interface);
- shared_mem = SharedMemory::Create("HID:SharedMem");
+ using Kernel::MemoryPermission;
+ shared_mem = SharedMemory::Create(0x1000, MemoryPermission::ReadWrite,
+ MemoryPermission::Read, "HID:SharedMem");
next_pad_index = 0;
next_touch_index = 0;
diff --git a/src/core/hle/service/ir/ir.cpp b/src/core/hle/service/ir/ir.cpp
index 15ac477efa..adfbb258dd 100644
--- a/src/core/hle/service/ir/ir.cpp
+++ b/src/core/hle/service/ir/ir.cpp
@@ -34,7 +34,9 @@ void Init() {
AddService(new IR_U_Interface);
AddService(new IR_User_Interface);
- shared_memory = SharedMemory::Create("IR:SharedMemory");
+ using Kernel::MemoryPermission;
+ shared_memory = SharedMemory::Create(0x1000, Kernel::MemoryPermission::ReadWrite,
+ Kernel::MemoryPermission::ReadWrite, "IR:SharedMemory");
// Create event handle(s)
handle_event = Event::Create(RESETTYPE_ONESHOT, "IR:HandleEvent");
diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp
index 393cfbe79e..1ec6599c76 100644
--- a/src/core/hle/svc.cpp
+++ b/src/core/hle/svc.cpp
@@ -601,7 +601,9 @@ static ResultCode CreateMemoryBlock(Handle* out_handle, u32 addr, u32 size, u32
using Kernel::SharedMemory;
// TODO(Subv): Implement this function
- SharedPtr<SharedMemory> shared_memory = SharedMemory::Create();
+ using Kernel::MemoryPermission;
+ SharedPtr<SharedMemory> shared_memory = SharedMemory::Create(size,
+ (MemoryPermission)my_permission, (MemoryPermission)other_permission);
CASCADE_RESULT(*out_handle, Kernel::g_handle_table.Create(std::move(shared_memory)));
LOG_WARNING(Kernel_SVC, "(STUBBED) called addr=0x%08X", addr);