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-rw-r--r--src/core/hle/kernel/svc.cpp58
1 files changed, 57 insertions, 1 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index c8b9e8aeb..9d57b6650 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -1590,6 +1590,62 @@ static ResultCode CreateTransferMemory(Handle* handle, VAddr addr, u64 size, u32
return RESULT_SUCCESS;
}
+static ResultCode MapTransferMemory(Handle handle, VAddr address, u64 size, u32 permission_raw) {
+ LOG_DEBUG(Kernel_SVC,
+ "called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}, permissions=0x{:08X}",
+ handle, address, size, permission_raw);
+
+ if (!Common::Is4KBAligned(address)) {
+ LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).",
+ address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (size == 0 || !Common::Is4KBAligned(size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).",
+ size);
+ return ERR_INVALID_SIZE;
+ }
+
+ if (!IsValidAddressRange(address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Given address and size overflows the 64-bit range (address=0x{:016X}, "
+ "size=0x{:016X}).",
+ address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ const auto permissions = static_cast<MemoryPermission>(permission_raw);
+ if (permissions != MemoryPermission::None && permissions != MemoryPermission::Read &&
+ permissions != MemoryPermission::ReadWrite) {
+ LOG_ERROR(Kernel_SVC, "Invalid transfer memory permissions given (permissions=0x{:08X}).",
+ permission_raw);
+ return ERR_INVALID_STATE;
+ }
+
+ const auto& kernel = Core::System::GetInstance().Kernel();
+ const auto* const current_process = kernel.CurrentProcess();
+ const auto& handle_table = current_process->GetHandleTable();
+
+ auto transfer_memory = handle_table.Get<TransferMemory>(handle);
+ if (!transfer_memory) {
+ LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).",
+ handle);
+ return ERR_INVALID_HANDLE;
+ }
+
+ if (!current_process->VMManager().IsWithinASLRRegion(address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Given address and size don't fully fit within the ASLR region "
+ "(address=0x{:016X}, size=0x{:016X}).",
+ address, size);
+ return ERR_INVALID_MEMORY_RANGE;
+ }
+
+ return transfer_memory->MapMemory(address, size, permissions);
+}
+
static ResultCode GetThreadCoreMask(Handle thread_handle, u32* core, u64* mask) {
LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
@@ -1965,7 +2021,7 @@ static const FunctionDef SVC_Table[] = {
{0x4E, nullptr, "ReadWriteRegister"},
{0x4F, nullptr, "SetProcessActivity"},
{0x50, SvcWrap<CreateSharedMemory>, "CreateSharedMemory"},
- {0x51, nullptr, "MapTransferMemory"},
+ {0x51, SvcWrap<MapTransferMemory>, "MapTransferMemory"},
{0x52, nullptr, "UnmapTransferMemory"},
{0x53, nullptr, "CreateInterruptEvent"},
{0x54, nullptr, "QueryPhysicalAddress"},