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-rw-r--r--src/core/hle/kernel/transfer_memory.cpp22
-rw-r--r--src/core/hle/kernel/transfer_memory.h20
-rw-r--r--src/core/hle/service/am/am.cpp12
3 files changed, 37 insertions, 17 deletions
diff --git a/src/core/hle/kernel/transfer_memory.cpp b/src/core/hle/kernel/transfer_memory.cpp
index 23228e1b5..26c4e5e67 100644
--- a/src/core/hle/kernel/transfer_memory.cpp
+++ b/src/core/hle/kernel/transfer_memory.cpp
@@ -14,8 +14,8 @@ namespace Kernel {
TransferMemory::TransferMemory(KernelCore& kernel) : Object{kernel} {}
TransferMemory::~TransferMemory() = default;
-SharedPtr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr base_address,
- size_t size, MemoryPermission permissions) {
+SharedPtr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr base_address, u64 size,
+ MemoryPermission permissions) {
SharedPtr<TransferMemory> transfer_memory{new TransferMemory(kernel)};
transfer_memory->base_address = base_address;
@@ -26,7 +26,15 @@ SharedPtr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr base_
return transfer_memory;
}
-ResultCode TransferMemory::MapMemory(VAddr address, size_t size, MemoryPermission permissions) {
+const u8* TransferMemory::GetPointer() const {
+ return backing_block.get()->data();
+}
+
+u64 TransferMemory::GetSize() const {
+ return memory_size;
+}
+
+ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission permissions) {
if (memory_size != size) {
return ERR_INVALID_SIZE;
}
@@ -39,13 +47,13 @@ ResultCode TransferMemory::MapMemory(VAddr address, size_t size, MemoryPermissio
return ERR_INVALID_STATE;
}
+ backing_block = std::make_shared<std::vector<u8>>(size);
+
const auto map_state = owner_permissions == MemoryPermission::None
? MemoryState::TransferMemoryIsolated
: MemoryState::TransferMemory;
auto& vm_manager = owner_process->VMManager();
- const auto map_result = vm_manager.MapMemoryBlock(
- address, std::make_shared<std::vector<u8>>(size), 0, size, map_state);
-
+ const auto map_result = vm_manager.MapMemoryBlock(address, backing_block, 0, size, map_state);
if (map_result.Failed()) {
return map_result.Code();
}
@@ -54,7 +62,7 @@ ResultCode TransferMemory::MapMemory(VAddr address, size_t size, MemoryPermissio
return RESULT_SUCCESS;
}
-ResultCode TransferMemory::UnmapMemory(VAddr address, size_t size) {
+ResultCode TransferMemory::UnmapMemory(VAddr address, u64 size) {
if (memory_size != size) {
return ERR_INVALID_SIZE;
}
diff --git a/src/core/hle/kernel/transfer_memory.h b/src/core/hle/kernel/transfer_memory.h
index ec294951e..a140b1e2b 100644
--- a/src/core/hle/kernel/transfer_memory.h
+++ b/src/core/hle/kernel/transfer_memory.h
@@ -4,6 +4,9 @@
#pragma once
+#include <memory>
+#include <vector>
+
#include "core/hle/kernel/object.h"
union ResultCode;
@@ -25,7 +28,7 @@ class TransferMemory final : public Object {
public:
static constexpr HandleType HANDLE_TYPE = HandleType::TransferMemory;
- static SharedPtr<TransferMemory> Create(KernelCore& kernel, VAddr base_address, size_t size,
+ static SharedPtr<TransferMemory> Create(KernelCore& kernel, VAddr base_address, u64 size,
MemoryPermission permissions);
TransferMemory(const TransferMemory&) = delete;
@@ -46,6 +49,12 @@ public:
return HANDLE_TYPE;
}
+ /// Gets a pointer to the backing block of this instance.
+ const u8* GetPointer() const;
+
+ /// Gets the size of the memory backing this instance in bytes.
+ u64 GetSize() const;
+
/// Attempts to map transfer memory with the given range and memory permissions.
///
/// @param address The base address to being mapping memory at.
@@ -56,7 +65,7 @@ public:
/// the same values that were given when creating the transfer memory
/// instance.
///
- ResultCode MapMemory(VAddr address, size_t size, MemoryPermission permissions);
+ ResultCode MapMemory(VAddr address, u64 size, MemoryPermission permissions);
/// Unmaps the transfer memory with the given range
///
@@ -66,17 +75,20 @@ public:
/// @pre The given address and size must be the same as the ones used
/// to create the transfer memory instance.
///
- ResultCode UnmapMemory(VAddr address, size_t size);
+ ResultCode UnmapMemory(VAddr address, u64 size);
private:
explicit TransferMemory(KernelCore& kernel);
~TransferMemory() override;
+ /// Memory block backing this instance.
+ std::shared_ptr<std::vector<u8>> backing_block;
+
/// The base address for the memory managed by this instance.
VAddr base_address = 0;
/// Size of the memory, in bytes, that this instance manages.
- size_t memory_size = 0;
+ u64 memory_size = 0;
/// The memory permissions that are applied to this instance.
MemoryPermission owner_permissions{};
diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index d31ab7970..a13433bcf 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -13,7 +13,7 @@
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/readable_event.h"
-#include "core/hle/kernel/shared_memory.h"
+#include "core/hle/kernel/transfer_memory.h"
#include "core/hle/kernel/writable_event.h"
#include "core/hle/service/acc/profile_manager.h"
#include "core/hle/service/am/am.h"
@@ -931,19 +931,19 @@ void ILibraryAppletCreator::CreateTransferMemoryStorage(Kernel::HLERequestContex
rp.SetCurrentOffset(3);
const auto handle{rp.Pop<Kernel::Handle>()};
- const auto shared_mem =
- Core::System::GetInstance().CurrentProcess()->GetHandleTable().Get<Kernel::SharedMemory>(
+ const auto transfer_mem =
+ Core::System::GetInstance().CurrentProcess()->GetHandleTable().Get<Kernel::TransferMemory>(
handle);
- if (shared_mem == nullptr) {
+ if (transfer_mem == nullptr) {
LOG_ERROR(Service_AM, "shared_mem is a nullpr for handle={:08X}", handle);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(-1));
return;
}
- const u8* mem_begin = shared_mem->GetPointer();
- const u8* mem_end = mem_begin + shared_mem->GetSize();
+ const u8* const mem_begin = transfer_mem->GetPointer();
+ const u8* const mem_end = mem_begin + transfer_mem->GetSize();
std::vector<u8> memory{mem_begin, mem_end};
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 21:53:27 +0100