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|
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "core/core_timing.h"
#include "core/hle/function_wrappers.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/sync_object.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/lock.h"
#include "core/hle/result.h"
#include "core/hle/service/service.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace SVC
using Kernel::ERR_INVALID_HANDLE;
using Kernel::Handle;
using Kernel::SharedPtr;
namespace SVC {
/// Set the process heap to a given Size. It can both extend and shrink the heap.
static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
LOG_TRACE(Kernel_SVC, "called, heap_size=0x%llx", heap_size);
auto& process = *Kernel::g_current_process;
CASCADE_RESULT(*heap_addr, process.HeapAllocate(Memory::HEAP_VADDR, heap_size,
Kernel::VMAPermission::ReadWrite));
return RESULT_SUCCESS;
}
/// Maps a memory range into a different range.
static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
LOG_TRACE(Kernel_SVC, "called, dst_addr=0x%llx, src_addr=0x%llx, size=0x%llx", dst_addr,
src_addr, size);
return Kernel::g_current_process->MirrorMemory(dst_addr, src_addr, size);
}
/// Unmaps a region that was previously mapped with svcMapMemory
static ResultCode UnmapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
LOG_TRACE(Kernel_SVC, "called, dst_addr=0x%llx, src_addr=0x%llx, size=0x%llx", dst_addr,
src_addr, size);
return Kernel::g_current_process->UnmapMemory(dst_addr, src_addr, size);
}
/// Connect to an OS service given the port name, returns the handle to the port to out
static ResultCode ConnectToPort(Kernel::Handle* out_handle, VAddr port_name_address) {
if (!Memory::IsValidVirtualAddress(port_name_address))
return Kernel::ERR_NOT_FOUND;
static constexpr std::size_t PortNameMaxLength = 11;
// Read 1 char beyond the max allowed port name to detect names that are too long.
std::string port_name = Memory::ReadCString(port_name_address, PortNameMaxLength + 1);
if (port_name.size() > PortNameMaxLength)
return Kernel::ERR_PORT_NAME_TOO_LONG;
LOG_TRACE(Kernel_SVC, "called port_name=%s", port_name.c_str());
auto it = Service::g_kernel_named_ports.find(port_name);
if (it == Service::g_kernel_named_ports.end()) {
LOG_WARNING(Kernel_SVC, "tried to connect to unknown port: %s", port_name.c_str());
return Kernel::ERR_NOT_FOUND;
}
auto client_port = it->second;
SharedPtr<Kernel::ClientSession> client_session;
CASCADE_RESULT(client_session, client_port->Connect());
// Return the client session
CASCADE_RESULT(*out_handle, Kernel::g_handle_table.Create(client_session));
return RESULT_SUCCESS;
}
/// Makes a blocking IPC call to an OS service.
static ResultCode SendSyncRequest(Kernel::Handle handle) {
SharedPtr<Kernel::SyncObject> session = Kernel::g_handle_table.Get<Kernel::SyncObject>(handle);
if (!session) {
LOG_ERROR(Kernel_SVC, "called with invalid handle=0x%08X", handle);
return ERR_INVALID_HANDLE;
}
LOG_TRACE(Kernel_SVC, "called handle=0x%08X(%s)", handle, session->GetName().c_str());
Core::System::GetInstance().PrepareReschedule();
// TODO(Subv): svcSendSyncRequest should put the caller thread to sleep while the server
// responds and cause a reschedule.
return session->SendSyncRequest(Kernel::GetCurrentThread());
}
/// Get the ID for the specified thread.
static ResultCode GetThreadId(u32* thread_id, Kernel::Handle thread_handle) {
LOG_TRACE(Kernel_SVC, "called thread=0x%08X", thread_handle);
const SharedPtr<Kernel::Thread> thread = Kernel::g_handle_table.Get<Kernel::Thread>(thread_handle);
if (!thread) {
return ERR_INVALID_HANDLE;
}
*thread_id = thread->GetThreadId();
return RESULT_SUCCESS;
}
/// Get the ID of the specified process
static ResultCode GetProcessId(u32* process_id, Kernel::Handle process_handle) {
LOG_TRACE(Kernel_SVC, "called process=0x%08X", process_handle);
const SharedPtr<Kernel::Process> process =
Kernel::g_handle_table.Get<Kernel::Process>(process_handle);
if (!process) {
return ERR_INVALID_HANDLE;
}
*process_id = process->process_id;
return RESULT_SUCCESS;
}
/// Attempts to locks a mutex, creating it if it does not already exist
static ResultCode LockMutex(Handle holding_thread_handle, VAddr mutex_addr,
Handle requesting_thread_handle) {
LOG_TRACE(Kernel_SVC,
"called holding_thread_handle=0x%08X, mutex_addr=0x%llx, "
"requesting_current_thread_handle=0x%08X",
holding_thread_handle, mutex_addr, requesting_thread_handle);
SharedPtr<Kernel::Thread> holding_thread =
Kernel::g_handle_table.Get<Kernel::Thread>(holding_thread_handle);
SharedPtr<Kernel::Thread> requesting_thread =
Kernel::g_handle_table.Get<Kernel::Thread>(requesting_thread_handle);
ASSERT(holding_thread);
ASSERT(requesting_thread);
SharedPtr<Kernel::Mutex> mutex = Kernel::g_object_address_table.Get<Kernel::Mutex>(mutex_addr);
if (!mutex) {
// Create a new mutex for the specified address if one does not already exist
mutex = Kernel::Mutex::Create(holding_thread, mutex_addr);
mutex->name = Common::StringFromFormat("mutex-%llx", mutex_addr);
}
if (mutex->ShouldWait(requesting_thread.get())) {
// If we cannot lock the mutex, then put the thread too sleep and trigger a reschedule
requesting_thread->wait_objects = {mutex};
mutex->AddWaitingThread(requesting_thread);
requesting_thread->status = THREADSTATUS_WAIT_SYNCH_ANY;
Core::System::GetInstance().PrepareReschedule();
} else {
// The mutex is available, lock it
mutex->Acquire(requesting_thread.get());
}
return RESULT_SUCCESS;
}
/// Break program execution
static void Break(u64 unk_0, u64 unk_1, u64 unk_2) {
LOG_CRITICAL(Debug_Emulated, "Emulated program broke execution!");
ASSERT(false);
}
/// Used to output a message on a debug hardware unit - does nothing on a retail unit
static void OutputDebugString(VAddr address, int len) {
std::vector<char> string(len);
Memory::ReadBlock(address, string.data(), len);
LOG_DEBUG(Debug_Emulated, "%.*s", len, string.data());
}
static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) {
LOG_TRACE(Kernel_SVC, "called, info_id=0x%X, info_sub_id=0x%X, handle=0x%08X", info_id, info_sub_id, handle);
if (!handle) {
switch (info_id) {
case 0xB:
*result = 0; // Used for PRNG seed
return RESULT_SUCCESS;
}
}
return RESULT_SUCCESS;
}
/// Gets the priority for the specified thread
static ResultCode GetThreadPriority(u32* priority, Handle handle) {
const SharedPtr<Kernel::Thread> thread = Kernel::g_handle_table.Get<Kernel::Thread>(handle);
if (!thread)
return ERR_INVALID_HANDLE;
*priority = thread->GetPriority();
return RESULT_SUCCESS;
}
/// Sets the priority for the specified thread
static ResultCode SetThreadPriority(Handle handle, u32 priority) {
if (priority > THREADPRIO_LOWEST) {
return Kernel::ERR_OUT_OF_RANGE;
}
SharedPtr<Kernel::Thread> thread = Kernel::g_handle_table.Get<Kernel::Thread>(handle);
if (!thread)
return Kernel::ERR_INVALID_HANDLE;
// Note: The kernel uses the current process's resource limit instead of
// the one from the thread owner's resource limit.
SharedPtr<Kernel::ResourceLimit>& resource_limit = Kernel::g_current_process->resource_limit;
if (resource_limit->GetMaxResourceValue(Kernel::ResourceTypes::PRIORITY) > priority) {
return Kernel::ERR_NOT_AUTHORIZED;
}
thread->SetPriority(priority);
thread->UpdatePriority();
// Update the mutexes that this thread is waiting for
for (auto& mutex : thread->pending_mutexes)
mutex->UpdatePriority();
Core::System::GetInstance().PrepareReschedule();
return RESULT_SUCCESS;
}
/// Get which CPU core is executing the current thread
static u32 GetCurrentProcessorNumber() {
LOG_WARNING(Kernel_SVC, "(STUBBED) called, defaulting to processor 0");
return 0;
}
/// Query process memory
static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_info*/,
Kernel::Handle process_handle, u64 addr) {
using Kernel::Process;
Kernel::SharedPtr<Process> process = Kernel::g_handle_table.Get<Process>(process_handle);
if (!process) {
return ERR_INVALID_HANDLE;
}
auto vma = process->vm_manager.FindVMA(addr);
memory_info->attributes = 0;
if (vma == Kernel::g_current_process->vm_manager.vma_map.end()) {
memory_info->base_address = 0;
memory_info->permission = static_cast<u32>(Kernel::VMAPermission::None);
memory_info->size = 0;
memory_info->type = static_cast<u32>(Kernel::MemoryState::Free);
} else {
memory_info->base_address = vma->second.base;
memory_info->permission = static_cast<u32>(vma->second.permissions);
memory_info->size = vma->second.size;
memory_info->type = static_cast<u32>(vma->second.meminfo_state);
}
LOG_TRACE(Kernel_SVC, "called process=0x%08X addr=%llx", process_handle, addr);
return RESULT_SUCCESS;
}
/// Query memory
static ResultCode QueryMemory(MemoryInfo* memory_info, PageInfo* page_info, VAddr addr) {
LOG_TRACE(Kernel_SVC, "called, addr=%llx", addr);
return QueryProcessMemory(memory_info, page_info, Kernel::CurrentProcess, addr);
}
/// Creates a new thread
static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, VAddr stack_top,
u32 priority, s32 processor_id) {
std::string name = Common::StringFromFormat("unknown-%016" PRIX64, entry_point);
if (priority > THREADPRIO_LOWEST) {
return Kernel::ERR_OUT_OF_RANGE;
}
SharedPtr<Kernel::ResourceLimit>& resource_limit = Kernel::g_current_process->resource_limit;
if (resource_limit->GetMaxResourceValue(Kernel::ResourceTypes::PRIORITY) > priority) {
return Kernel::ERR_NOT_AUTHORIZED;
}
if (processor_id == THREADPROCESSORID_DEFAULT) {
// Set the target CPU to the one specified in the process' exheader.
processor_id = Kernel::g_current_process->ideal_processor;
ASSERT(processor_id != THREADPROCESSORID_DEFAULT);
}
switch (processor_id) {
case THREADPROCESSORID_0:
break;
case THREADPROCESSORID_ALL:
LOG_INFO(Kernel_SVC,
"Newly created thread is allowed to be run in any Core, unimplemented.");
break;
case THREADPROCESSORID_1:
LOG_ERROR(Kernel_SVC,
"Newly created thread must run in the SysCore (Core1), unimplemented.");
break;
default:
// TODO(bunnei): Implement support for other processor IDs
ASSERT_MSG(false, "Unsupported thread processor ID: %d", processor_id);
break;
}
CASCADE_RESULT(SharedPtr<Kernel::Thread> thread,
Kernel::Thread::Create(name, entry_point, priority, arg, processor_id, stack_top,
Kernel::g_current_process));
thread->context.fpscr =
FPSCR_DEFAULT_NAN | FPSCR_FLUSH_TO_ZERO | FPSCR_ROUND_TOZERO; // 0x03C00000
CASCADE_RESULT(thread->guest_handle, Kernel::g_handle_table.Create(thread));
*out_handle = thread->guest_handle;
Core::System::GetInstance().PrepareReschedule();
LOG_TRACE(Kernel_SVC,
"called entrypoint=0x%08X (%s), arg=0x%08X, stacktop=0x%08X, "
"threadpriority=0x%08X, processorid=0x%08X : created handle=0x%08X",
entry_point, name.c_str(), arg, stack_top, priority, processor_id, *out_handle);
return RESULT_SUCCESS;
}
/// Starts the thread for the provided handle
static ResultCode StartThread(Handle thread_handle) {
LOG_TRACE(Kernel_SVC, "called thread=0x%08X", thread_handle);
const SharedPtr<Kernel::Thread> thread =
Kernel::g_handle_table.Get<Kernel::Thread>(thread_handle);
if (!thread) {
return ERR_INVALID_HANDLE;
}
thread->ResumeFromWait();
return RESULT_SUCCESS;
}
/// Called when a thread exits
static void ExitThread() {
LOG_TRACE(Kernel_SVC, "called, pc=0x%08X", Core::CPU().GetPC());
Kernel::ExitCurrentThread();
Core::System::GetInstance().PrepareReschedule();
}
/// Sleep the current thread
static void SleepThread(s64 nanoseconds) {
LOG_TRACE(Kernel_SVC, "called nanoseconds=%lld", nanoseconds);
// Don't attempt to yield execution if there are no available threads to run,
// this way we avoid a useless reschedule to the idle thread.
if (nanoseconds == 0 && !Kernel::HaveReadyThreads())
return;
// Sleep current thread and check for next thread to schedule
Kernel::WaitCurrentThread_Sleep();
// Create an event to wake the thread up after the specified nanosecond delay has passed
Kernel::GetCurrentThread()->WakeAfterDelay(nanoseconds);
Core::System::GetInstance().PrepareReschedule();
}
/// Signal process wide key
static ResultCode SignalProcessWideKey(VAddr addr, u32 target) {
LOG_WARNING(Kernel_SVC, "(STUBBED) called, address=0x%llx, target=0x%08x", addr, target);
return RESULT_SUCCESS;
}
/// Close a handle
static ResultCode CloseHandle(Kernel::Handle handle) {
LOG_TRACE(Kernel_SVC, "Closing handle 0x%08X", handle);
return Kernel::g_handle_table.Close(handle);
}
namespace {
struct FunctionDef {
using Func = void();
u32 id;
Func* func;
const char* name;
};
} // namespace
static const FunctionDef SVC_Table[] = {
{0x00, nullptr, "Unknown"},
{0x01, HLE::Wrap<SetHeapSize>, "svcSetHeapSize"},
{0x02, nullptr, "svcSetMemoryPermission"},
{0x03, nullptr, "svcSetMemoryAttribute"},
{0x04, HLE::Wrap<MapMemory>, "svcMapMemory"},
{0x05, HLE::Wrap<UnmapMemory>, "svcUnmapMemory"},
{0x06, HLE::Wrap<QueryMemory>, "svcQueryMemory"},
{0x07, nullptr, "svcExitProcess"},
{0x08, HLE::Wrap<CreateThread>, "svcCreateThread"},
{0x09, HLE::Wrap<StartThread>, "svcStartThread"},
{0x0A, HLE::Wrap<ExitThread>, "svcExitThread"},
{0x0B, HLE::Wrap<SleepThread>, "svcSleepThread"},
{0x0C, HLE::Wrap<GetThreadPriority>, "svcGetThreadPriority"},
{0x0D, HLE::Wrap<SetThreadPriority>, "svcSetThreadPriority"},
{0x0E, nullptr, "svcGetThreadCoreMask"},
{0x0F, nullptr, "svcSetThreadCoreMask"},
{0x10, HLE::Wrap<GetCurrentProcessorNumber>, "svcGetCurrentProcessorNumber"},
{0x11, nullptr, "svcSignalEvent"},
{0x12, nullptr, "svcClearEvent"},
{0x13, nullptr, "svcMapSharedMemory"},
{0x14, nullptr, "svcUnmapSharedMemory"},
{0x15, nullptr, "svcCreateTransferMemory"},
{0x16, HLE::Wrap<CloseHandle>, "svcCloseHandle"},
{0x17, nullptr, "svcResetSignal"},
{0x18, nullptr, "svcWaitSynchronization"},
{0x19, nullptr, "svcCancelSynchronization"},
{0x1B, nullptr, "svcUnlockMutex"},
{0x1A, HLE::Wrap<LockMutex>, "svcLockMutex"},
{0x1C, nullptr, "svcWaitProcessWideKeyAtomic"},
{0x1D, HLE::Wrap<SignalProcessWideKey>, "svcSignalProcessWideKey"},
{0x1E, nullptr, "svcGetSystemTick"},
{0x1F, HLE::Wrap<ConnectToPort>, "svcConnectToPort"},
{0x20, nullptr, "svcSendSyncRequestLight"},
{0x21, HLE::Wrap<SendSyncRequest>, "svcSendSyncRequest"},
{0x22, nullptr, "svcSendSyncRequestWithUserBuffer"},
{0x23, nullptr, "svcSendAsyncRequestWithUserBuffer"},
{0x24, HLE::Wrap<GetProcessId>, "svcGetProcessId"},
{0x25, HLE::Wrap<GetThreadId>, "svcGetThreadId"},
{0x26, HLE::Wrap<Break>, "svcBreak"},
{0x27, HLE::Wrap<OutputDebugString>, "svcOutputDebugString"},
{0x28, nullptr, "svcReturnFromException"},
{0x29, HLE::Wrap<GetInfo>, "svcGetInfo"},
{0x2A, nullptr, "svcFlushEntireDataCache"},
{0x2B, nullptr, "svcFlushDataCache"},
{0x2C, nullptr, "svcMapPhysicalMemory"},
{0x2D, nullptr, "svcUnmapPhysicalMemory"},
{0x2E, nullptr, "Unknown"},
{0x2F, nullptr, "svcGetLastThreadInfo"},
{0x30, nullptr, "svcGetResourceLimitLimitValue"},
{0x31, nullptr, "svcGetResourceLimitCurrentValue"},
{0x32, nullptr, "svcSetThreadActivity"},
{0x33, nullptr, "svcGetThreadContext"},
{0x34, nullptr, "Unknown"},
{0x35, nullptr, "Unknown"},
{0x36, nullptr, "Unknown"},
{0x37, nullptr, "Unknown"},
{0x38, nullptr, "Unknown"},
{0x39, nullptr, "Unknown"},
{0x3A, nullptr, "Unknown"},
{0x3B, nullptr, "Unknown"},
{0x3C, nullptr, "svcDumpInfo"},
{0x3D, nullptr, "Unknown"},
{0x3E, nullptr, "Unknown"},
{0x3F, nullptr, "Unknown"},
{0x40, nullptr, "svcCreateSession"},
{0x41, nullptr, "svcAcceptSession"},
{0x42, nullptr, "svcReplyAndReceiveLight"},
{0x43, nullptr, "svcReplyAndReceive"},
{0x44, nullptr, "svcReplyAndReceiveWithUserBuffer"},
{0x45, nullptr, "svcCreateEvent"},
{0x46, nullptr, "Unknown"},
{0x47, nullptr, "Unknown"},
{0x48, nullptr, "Unknown"},
{0x49, nullptr, "Unknown"},
{0x4A, nullptr, "Unknown"},
{0x4B, nullptr, "Unknown"},
{0x4C, nullptr, "Unknown"},
{0x4D, nullptr, "svcSleepSystem"},
{0x4E, nullptr, "svcReadWriteRegister"},
{0x4F, nullptr, "svcSetProcessActivity"},
{0x50, nullptr, "svcCreateSharedMemory"},
{0x51, nullptr, "svcMapTransferMemory"},
{0x52, nullptr, "svcUnmapTransferMemory"},
{0x53, nullptr, "svcCreateInterruptEvent"},
{0x54, nullptr, "svcQueryPhysicalAddress"},
{0x55, nullptr, "svcQueryIoMapping"},
{0x56, nullptr, "svcCreateDeviceAddressSpace"},
{0x57, nullptr, "svcAttachDeviceAddressSpace"},
{0x58, nullptr, "svcDetachDeviceAddressSpace"},
{0x59, nullptr, "svcMapDeviceAddressSpaceByForce"},
{0x5A, nullptr, "svcMapDeviceAddressSpaceAligned"},
{0x5B, nullptr, "svcMapDeviceAddressSpace"},
{0x5C, nullptr, "svcUnmapDeviceAddressSpace"},
{0x5D, nullptr, "svcInvalidateProcessDataCache"},
{0x5E, nullptr, "svcStoreProcessDataCache"},
{0x5F, nullptr, "svcFlushProcessDataCache"},
{0x60, nullptr, "svcDebugActiveProcess"},
{0x61, nullptr, "svcBreakDebugProcess"},
{0x62, nullptr, "svcTerminateDebugProcess"},
{0x63, nullptr, "svcGetDebugEvent"},
{0x64, nullptr, "svcContinueDebugEvent"},
{0x65, nullptr, "svcGetProcessList"},
{0x66, nullptr, "svcGetThreadList"},
{0x67, nullptr, "svcGetDebugThreadContext"},
{0x68, nullptr, "svcSetDebugThreadContext"},
{0x69, nullptr, "svcQueryDebugProcessMemory"},
{0x6A, nullptr, "svcReadDebugProcessMemory"},
{0x6B, nullptr, "svcWriteDebugProcessMemory"},
{0x6C, nullptr, "svcSetHardwareBreakPoint"},
{0x6D, nullptr, "svcGetDebugThreadParam"},
{0x6E, nullptr, "Unknown"},
{0x6F, nullptr, "Unknown"},
{0x70, nullptr, "svcCreatePort"},
{0x71, nullptr, "svcManageNamedPort"},
{0x72, nullptr, "svcConnectToPort"},
{0x73, nullptr, "svcSetProcessMemoryPermission"},
{0x74, nullptr, "svcMapProcessMemory"},
{0x75, nullptr, "svcUnmapProcessMemory"},
{0x76, nullptr, "svcQueryProcessMemory"},
{0x77, nullptr, "svcMapProcessCodeMemory"},
{0x78, nullptr, "svcUnmapProcessCodeMemory"},
{0x79, nullptr, "svcCreateProcess"},
{0x7A, nullptr, "svcStartProcess"},
{0x7B, nullptr, "svcTerminateProcess"},
{0x7C, nullptr, "svcGetProcessInfo"},
{0x7D, nullptr, "svcCreateResourceLimit"},
{0x7E, nullptr, "svcSetResourceLimitLimitValue"},
{0x7F, nullptr, "svcCallSecureMonitor"},
};
static const FunctionDef* GetSVCInfo(u32 func_num) {
if (func_num >= ARRAY_SIZE(SVC_Table)) {
LOG_ERROR(Kernel_SVC, "unknown svc=0x%02X", func_num);
return nullptr;
}
return &SVC_Table[func_num];
}
MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70));
void CallSVC(u32 immediate) {
MICROPROFILE_SCOPE(Kernel_SVC);
// Lock the global kernel mutex when we enter the kernel HLE.
std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
const FunctionDef* info = GetSVCInfo(immediate);
if (info) {
if (info->func) {
info->func();
} else {
LOG_CRITICAL(Kernel_SVC, "unimplemented SVC function %s(..)", info->name);
}
} else {
LOG_CRITICAL(Kernel_SVC, "unknown SVC function 0x%x", immediate);
}
}
} // namespace SVC
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