diff options
Diffstat (limited to 'src/core/hle')
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 44 | ||||
-rw-r--r-- | src/core/hle/kernel/svc_wrap.h | 5 |
2 files changed, 48 insertions, 1 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index b0b6508d9..5f4521122 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -123,6 +123,48 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) { return RESULT_SUCCESS; } +static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) { + LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot); + + if (!Common::Is4KBAligned(addr)) { + return ERR_INVALID_ADDRESS; + } + + if (size == 0 || !Common::Is4KBAligned(size)) { + return ERR_INVALID_SIZE; + } + + if (!IsValidAddressRange(addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + const auto permission = static_cast<MemoryPermission>(prot); + if (permission != MemoryPermission::None && permission != MemoryPermission::Read && + permission != MemoryPermission::ReadWrite) { + return ERR_INVALID_MEMORY_PERMISSIONS; + } + + auto* const current_process = Core::CurrentProcess(); + auto& vm_manager = current_process->VMManager(); + + if (!IsInsideAddressSpace(vm_manager, addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + const VMManager::VMAHandle iter = vm_manager.FindVMA(addr); + if (iter == vm_manager.vma_map.end()) { + return ERR_INVALID_ADDRESS_STATE; + } + + LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented."); + // TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't + // make sense to allow changing permissions on kernel memory itself, etc). + + const auto converted_permissions = SharedMemory::ConvertPermissions(permission); + + return vm_manager.ReprotectRange(addr, size, converted_permissions); +} + static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) { LOG_WARNING(Kernel_SVC, "(STUBBED) called, addr=0x{:X}, size=0x{:X}, state0=0x{:X}, state1=0x{:X}", addr, @@ -1297,7 +1339,7 @@ struct FunctionDef { static const FunctionDef SVC_Table[] = { {0x00, nullptr, "Unknown"}, {0x01, SvcWrap<SetHeapSize>, "SetHeapSize"}, - {0x02, nullptr, "SetMemoryPermission"}, + {0x02, SvcWrap<SetMemoryPermission>, "SetMemoryPermission"}, {0x03, SvcWrap<SetMemoryAttribute>, "SetMemoryAttribute"}, {0x04, SvcWrap<MapMemory>, "MapMemory"}, {0x05, SvcWrap<UnmapMemory>, "UnmapMemory"}, diff --git a/src/core/hle/kernel/svc_wrap.h b/src/core/hle/kernel/svc_wrap.h index b09753c80..233a99fb0 100644 --- a/src/core/hle/kernel/svc_wrap.h +++ b/src/core/hle/kernel/svc_wrap.h @@ -121,6 +121,11 @@ void SvcWrap() { FuncReturn(func(Param(0), Param(1), Param(2)).raw); } +template <ResultCode func(u64, u64, u32)> +void SvcWrap() { + FuncReturn(func(Param(0), Param(1), static_cast<u32>(Param(2))).raw); +} + template <ResultCode func(u32, u64, u64, u32)> void SvcWrap() { FuncReturn( |