diff options
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r-- | src/core/hle/kernel/address_arbiter.cpp | 2 | ||||
-rw-r--r-- | src/core/hle/kernel/process.cpp | 10 | ||||
-rw-r--r-- | src/core/hle/kernel/process.h | 21 | ||||
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 108 | ||||
-rw-r--r-- | src/core/hle/kernel/svc.h | 4 | ||||
-rw-r--r-- | src/core/hle/kernel/svc_wrap.h | 8 | ||||
-rw-r--r-- | src/core/hle/kernel/thread.cpp | 16 | ||||
-rw-r--r-- | src/core/hle/kernel/vm_manager.cpp | 55 | ||||
-rw-r--r-- | src/core/hle/kernel/vm_manager.h | 15 |
9 files changed, 180 insertions, 59 deletions
diff --git a/src/core/hle/kernel/address_arbiter.cpp b/src/core/hle/kernel/address_arbiter.cpp index ebf193930..57157beb4 100644 --- a/src/core/hle/kernel/address_arbiter.cpp +++ b/src/core/hle/kernel/address_arbiter.cpp @@ -39,7 +39,7 @@ static std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address) std::vector<SharedPtr<Thread>>& waiting_threads, VAddr arb_addr) { const auto& scheduler = Core::System::GetInstance().Scheduler(core_index); - const auto& thread_list = scheduler->GetThreadList(); + const auto& thread_list = scheduler.GetThreadList(); for (const auto& thread : thread_list) { if (thread->GetArbiterWaitAddress() == arb_addr) diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp index c80b2c507..073dd5a7d 100644 --- a/src/core/hle/kernel/process.cpp +++ b/src/core/hle/kernel/process.cpp @@ -153,11 +153,11 @@ void Process::PrepareForTermination() { } }; - auto& system = Core::System::GetInstance(); - stop_threads(system.Scheduler(0)->GetThreadList()); - stop_threads(system.Scheduler(1)->GetThreadList()); - stop_threads(system.Scheduler(2)->GetThreadList()); - stop_threads(system.Scheduler(3)->GetThreadList()); + const auto& system = Core::System::GetInstance(); + stop_threads(system.Scheduler(0).GetThreadList()); + stop_threads(system.Scheduler(1).GetThreadList()); + stop_threads(system.Scheduler(2).GetThreadList()); + stop_threads(system.Scheduler(3).GetThreadList()); } /** diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h index 73ec01e11..f2816943a 100644 --- a/src/core/hle/kernel/process.h +++ b/src/core/hle/kernel/process.h @@ -24,6 +24,7 @@ class ProgramMetadata; namespace Kernel { class KernelCore; +class ResourceLimit; struct AddressMapping { // Address and size must be page-aligned @@ -57,9 +58,23 @@ union ProcessFlags { BitField<12, 1, u16> loaded_high; ///< Application loaded high (not at 0x00100000). }; -enum class ProcessStatus { Created, Running, Exited }; - -class ResourceLimit; +/** + * Indicates the status of a Process instance. + * + * @note These match the values as used by kernel, + * so new entries should only be added if RE + * shows that a new value has been introduced. + */ +enum class ProcessStatus { + Created, + CreatedWithDebuggerAttached, + Running, + WaitingForDebuggerToAttach, + DebuggerAttached, + Exiting, + Exited, + DebugBreak, +}; struct CodeSet final { struct Segment { diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index e406df829..3b8a2e230 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -8,6 +8,7 @@ #include <mutex> #include <vector> +#include "common/alignment.h" #include "common/assert.h" #include "common/logging/log.h" #include "common/microprofile.h" @@ -36,9 +37,6 @@ namespace Kernel { namespace { -constexpr bool Is4KBAligned(VAddr address) { - return (address & 0xFFF) == 0; -} // Checks if address + size is greater than the given address // This can return false if the size causes an overflow of a 64-bit type @@ -69,11 +67,11 @@ bool IsInsideNewMapRegion(const VMManager& vm, VAddr address, u64 size) { // in the same order. ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_addr, VAddr src_addr, u64 size) { - if (!Is4KBAligned(dst_addr) || !Is4KBAligned(src_addr)) { + if (!Common::Is4KBAligned(dst_addr) || !Common::Is4KBAligned(src_addr)) { return ERR_INVALID_ADDRESS; } - if (size == 0 || !Is4KBAligned(size)) { + if (size == 0 || !Common::Is4KBAligned(size)) { return ERR_INVALID_SIZE; } @@ -352,6 +350,10 @@ static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr, return ERR_INVALID_ADDRESS_STATE; } + if (!Common::IsWordAligned(mutex_addr)) { + return ERR_INVALID_ADDRESS; + } + auto& handle_table = Core::System::GetInstance().Kernel().HandleTable(); return Mutex::TryAcquire(handle_table, mutex_addr, holding_thread_handle, requesting_thread_handle); @@ -365,6 +367,10 @@ static ResultCode ArbitrateUnlock(VAddr mutex_addr) { return ERR_INVALID_ADDRESS_STATE; } + if (!Common::IsWordAligned(mutex_addr)) { + return ERR_INVALID_ADDRESS; + } + return Mutex::Release(mutex_addr); } @@ -389,6 +395,12 @@ static void Break(u32 reason, u64 info1, u64 info2) { "Emulated program broke execution! reason=0x{:016X}, info1=0x{:016X}, info2=0x{:016X}", reason, info1, info2); ASSERT(false); + + Core::CurrentProcess()->PrepareForTermination(); + + // Kill the current thread + GetCurrentThread()->Stop(); + Core::System::GetInstance().PrepareReschedule(); } } @@ -442,25 +454,12 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id) case GetInfoType::RandomEntropy: *result = 0; break; - case GetInfoType::AddressSpaceBaseAddr: - *result = vm_manager.GetCodeRegionBaseAddress(); + case GetInfoType::ASLRRegionBaseAddr: + *result = vm_manager.GetASLRRegionBaseAddress(); break; - case GetInfoType::AddressSpaceSize: { - const u64 width = vm_manager.GetAddressSpaceWidth(); - - switch (width) { - case 32: - *result = 0xFFE00000; - break; - case 36: - *result = 0xFF8000000; - break; - case 39: - *result = 0x7FF8000000; - break; - } + case GetInfoType::ASLRRegionSize: + *result = vm_manager.GetASLRRegionSize(); break; - } case GetInfoType::NewMapRegionBaseAddr: *result = vm_manager.GetNewMapRegionBaseAddress(); break; @@ -577,14 +576,18 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s "called, shared_memory_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}", shared_memory_handle, addr, size, permissions); - if (!Is4KBAligned(addr)) { + if (!Common::Is4KBAligned(addr)) { return ERR_INVALID_ADDRESS; } - if (size == 0 || !Is4KBAligned(size)) { + if (size == 0 || !Common::Is4KBAligned(size)) { return ERR_INVALID_SIZE; } + if (!IsValidAddressRange(addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + const auto permissions_type = static_cast<MemoryPermission>(permissions); if (permissions_type != MemoryPermission::Read && permissions_type != MemoryPermission::ReadWrite) { @@ -598,26 +601,46 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s return ERR_INVALID_HANDLE; } - return shared_memory->Map(Core::CurrentProcess(), addr, permissions_type, - MemoryPermission::DontCare); + auto* const current_process = Core::CurrentProcess(); + const auto& vm_manager = current_process->VMManager(); + + if (!vm_manager.IsWithinASLRRegion(addr, size)) { + return ERR_INVALID_MEMORY_RANGE; + } + + return shared_memory->Map(current_process, addr, permissions_type, MemoryPermission::DontCare); } static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size) { LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}", shared_memory_handle, addr, size); - if (!Is4KBAligned(addr)) { + if (!Common::Is4KBAligned(addr)) { return ERR_INVALID_ADDRESS; } - if (size == 0 || !Is4KBAligned(size)) { + if (size == 0 || !Common::Is4KBAligned(size)) { return ERR_INVALID_SIZE; } + if (!IsValidAddressRange(addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + auto& kernel = Core::System::GetInstance().Kernel(); auto shared_memory = kernel.HandleTable().Get<SharedMemory>(shared_memory_handle); + if (!shared_memory) { + return ERR_INVALID_HANDLE; + } + + auto* const current_process = Core::CurrentProcess(); + const auto& vm_manager = current_process->VMManager(); - return shared_memory->Unmap(Core::CurrentProcess(), addr); + if (!vm_manager.IsWithinASLRRegion(addr, size)) { + return ERR_INVALID_MEMORY_RANGE; + } + + return shared_memory->Unmap(current_process, addr); } /// Query process memory @@ -803,7 +826,7 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target std::vector<SharedPtr<Thread>>& waiting_threads, VAddr condvar_addr) { const auto& scheduler = Core::System::GetInstance().Scheduler(core_index); - const auto& thread_list = scheduler->GetThreadList(); + const auto& thread_list = scheduler.GetThreadList(); for (const auto& thread : thread_list) { if (thread->GetCondVarWaitAddress() == condvar_addr) @@ -1092,6 +1115,29 @@ static ResultCode ClearEvent(Handle handle) { return RESULT_SUCCESS; } +static ResultCode GetProcessInfo(u64* out, Handle process_handle, u32 type) { + LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, type=0x{:X}", process_handle, type); + + // This function currently only allows retrieving a process' status. + enum class InfoType { + Status, + }; + + const auto& kernel = Core::System::GetInstance().Kernel(); + const auto process = kernel.HandleTable().Get<Process>(process_handle); + if (!process) { + return ERR_INVALID_HANDLE; + } + + const auto info_type = static_cast<InfoType>(type); + if (info_type != InfoType::Status) { + return ERR_INVALID_ENUM_VALUE; + } + + *out = static_cast<u64>(process->GetStatus()); + return RESULT_SUCCESS; +} + namespace { struct FunctionDef { using Func = void(); @@ -1227,7 +1273,7 @@ static const FunctionDef SVC_Table[] = { {0x79, nullptr, "CreateProcess"}, {0x7A, nullptr, "StartProcess"}, {0x7B, nullptr, "TerminateProcess"}, - {0x7C, nullptr, "GetProcessInfo"}, + {0x7C, SvcWrap<GetProcessInfo>, "GetProcessInfo"}, {0x7D, nullptr, "CreateResourceLimit"}, {0x7E, nullptr, "SetResourceLimitLimitValue"}, {0x7F, nullptr, "CallSecureMonitor"}, diff --git a/src/core/hle/kernel/svc.h b/src/core/hle/kernel/svc.h index 70148c4fe..554a5e328 100644 --- a/src/core/hle/kernel/svc.h +++ b/src/core/hle/kernel/svc.h @@ -41,8 +41,8 @@ enum class GetInfoType : u64 { RandomEntropy = 11, PerformanceCounter = 0xF0000002, // 2.0.0+ - AddressSpaceBaseAddr = 12, - AddressSpaceSize = 13, + ASLRRegionBaseAddr = 12, + ASLRRegionSize = 13, NewMapRegionBaseAddr = 14, NewMapRegionSize = 15, // 3.0.0+ diff --git a/src/core/hle/kernel/svc_wrap.h b/src/core/hle/kernel/svc_wrap.h index cbb80c3c4..b09753c80 100644 --- a/src/core/hle/kernel/svc_wrap.h +++ b/src/core/hle/kernel/svc_wrap.h @@ -77,6 +77,14 @@ void SvcWrap() { FuncReturn(retval); } +template <ResultCode func(u64*, u32, u32)> +void SvcWrap() { + u64 param_1 = 0; + u32 retval = func(¶m_1, static_cast<u32>(Param(1)), static_cast<u32>(Param(2))).raw; + Core::CurrentArmInterface().SetReg(1, param_1); + FuncReturn(retval); +} + template <ResultCode func(u32, u64)> void SvcWrap() { FuncReturn(func(static_cast<u32>(Param(0)), Param(1)).raw); diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 352ce1725..35ec98c1a 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -97,7 +97,7 @@ void Thread::CancelWakeupTimer() { static boost::optional<s32> GetNextProcessorId(u64 mask) { for (s32 index = 0; index < Core::NUM_CPU_CORES; ++index) { if (mask & (1ULL << index)) { - if (!Core::System::GetInstance().Scheduler(index)->GetCurrentThread()) { + if (!Core::System::GetInstance().Scheduler(index).GetCurrentThread()) { // Core is enabled and not running any threads, use this one return index; } @@ -147,14 +147,14 @@ void Thread::ResumeFromWait() { new_processor_id = processor_id; } if (ideal_core != -1 && - Core::System::GetInstance().Scheduler(ideal_core)->GetCurrentThread() == nullptr) { + Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) { new_processor_id = ideal_core; } ASSERT(*new_processor_id < 4); // Add thread to new core's scheduler - auto& next_scheduler = Core::System::GetInstance().Scheduler(*new_processor_id); + auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id); if (*new_processor_id != processor_id) { // Remove thread from previous core's scheduler @@ -169,7 +169,7 @@ void Thread::ResumeFromWait() { next_scheduler->ScheduleThread(this, current_priority); // Change thread's scheduler - scheduler = next_scheduler.get(); + scheduler = next_scheduler; Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule(); } @@ -230,7 +230,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(KernelCore& kernel, std::string name thread->name = std::move(name); thread->callback_handle = kernel.ThreadWakeupCallbackHandleTable().Create(thread).Unwrap(); thread->owner_process = &owner_process; - thread->scheduler = Core::System::GetInstance().Scheduler(processor_id).get(); + thread->scheduler = &Core::System::GetInstance().Scheduler(processor_id); thread->scheduler->AddThread(thread, priority); thread->tls_address = thread->owner_process->MarkNextAvailableTLSSlotAsUsed(*thread); @@ -375,14 +375,14 @@ void Thread::ChangeCore(u32 core, u64 mask) { new_processor_id = processor_id; } if (ideal_core != -1 && - Core::System::GetInstance().Scheduler(ideal_core)->GetCurrentThread() == nullptr) { + Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) { new_processor_id = ideal_core; } ASSERT(*new_processor_id < 4); // Add thread to new core's scheduler - auto& next_scheduler = Core::System::GetInstance().Scheduler(*new_processor_id); + auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id); if (*new_processor_id != processor_id) { // Remove thread from previous core's scheduler @@ -397,7 +397,7 @@ void Thread::ChangeCore(u32 core, u64 mask) { next_scheduler->ScheduleThread(this, current_priority); // Change thread's scheduler - scheduler = next_scheduler.get(); + scheduler = next_scheduler; Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule(); } diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp index e412309fd..e1a34eef1 100644 --- a/src/core/hle/kernel/vm_manager.cpp +++ b/src/core/hle/kernel/vm_manager.cpp @@ -393,30 +393,35 @@ void VMManager::InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType ty switch (type) { case FileSys::ProgramAddressSpaceType::Is32Bit: + case FileSys::ProgramAddressSpaceType::Is32BitNoMap: address_space_width = 32; code_region_base = 0x200000; code_region_end = code_region_base + 0x3FE00000; - map_region_size = 0x40000000; - heap_region_size = 0x40000000; + aslr_region_base = 0x200000; + aslr_region_end = aslr_region_base + 0xFFE00000; + if (type == FileSys::ProgramAddressSpaceType::Is32Bit) { + map_region_size = 0x40000000; + heap_region_size = 0x40000000; + } else { + map_region_size = 0; + heap_region_size = 0x80000000; + } break; case FileSys::ProgramAddressSpaceType::Is36Bit: address_space_width = 36; code_region_base = 0x8000000; code_region_end = code_region_base + 0x78000000; + aslr_region_base = 0x8000000; + aslr_region_end = aslr_region_base + 0xFF8000000; map_region_size = 0x180000000; heap_region_size = 0x180000000; break; - case FileSys::ProgramAddressSpaceType::Is32BitNoMap: - address_space_width = 32; - code_region_base = 0x200000; - code_region_end = code_region_base + 0x3FE00000; - map_region_size = 0; - heap_region_size = 0x80000000; - break; case FileSys::ProgramAddressSpaceType::Is39Bit: address_space_width = 39; code_region_base = 0x8000000; code_region_end = code_region_base + 0x80000000; + aslr_region_base = 0x8000000; + aslr_region_end = aslr_region_base + 0x7FF8000000; map_region_size = 0x1000000000; heap_region_size = 0x180000000; new_map_region_size = 0x80000000; @@ -490,6 +495,38 @@ u64 VMManager::GetAddressSpaceWidth() const { return address_space_width; } +VAddr VMManager::GetASLRRegionBaseAddress() const { + return aslr_region_base; +} + +VAddr VMManager::GetASLRRegionEndAddress() const { + return aslr_region_end; +} + +u64 VMManager::GetASLRRegionSize() const { + return aslr_region_end - aslr_region_base; +} + +bool VMManager::IsWithinASLRRegion(VAddr begin, u64 size) const { + const VAddr range_end = begin + size; + const VAddr aslr_start = GetASLRRegionBaseAddress(); + const VAddr aslr_end = GetASLRRegionEndAddress(); + + if (aslr_start > begin || begin > range_end || range_end - 1 > aslr_end - 1) { + return false; + } + + if (range_end > heap_region_base && heap_region_end > begin) { + return false; + } + + if (range_end > map_region_base && map_region_end > begin) { + return false; + } + + return true; +} + VAddr VMManager::GetCodeRegionBaseAddress() const { return code_region_base; } diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h index 015559a64..84c890224 100644 --- a/src/core/hle/kernel/vm_manager.h +++ b/src/core/hle/kernel/vm_manager.h @@ -205,6 +205,18 @@ public: /// Gets the address space width in bits. u64 GetAddressSpaceWidth() const; + /// Gets the base address of the ASLR region. + VAddr GetASLRRegionBaseAddress() const; + + /// Gets the end address of the ASLR region. + VAddr GetASLRRegionEndAddress() const; + + /// Determines whether or not the specified address range is within the ASLR region. + bool IsWithinASLRRegion(VAddr address, u64 size) const; + + /// Gets the size of the ASLR region + u64 GetASLRRegionSize() const; + /// Gets the base address of the code region. VAddr GetCodeRegionBaseAddress() const; @@ -306,6 +318,9 @@ private: VAddr address_space_base = 0; VAddr address_space_end = 0; + VAddr aslr_region_base = 0; + VAddr aslr_region_end = 0; + VAddr code_region_base = 0; VAddr code_region_end = 0; |