Merge pull request #1899 from lioncash/state
vm_manager/svc: Modify MemoryState enum, and correct error handling for svcQueryMemory
This commit is contained in:
bunnei
GitHub
commit
1a23970d17
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@ -150,7 +150,7 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
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vm_manager
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.MapMemoryBlock(vm_manager.GetTLSIORegionEndAddress() - stack_size,
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std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size,
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MemoryState::Mapped)
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MemoryState::Stack)
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.Unwrap();
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vm_manager.LogLayout();
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@ -262,8 +262,7 @@ public:
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ResultVal<VAddr> HeapAllocate(VAddr target, u64 size, VMAPermission perms);
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ResultCode HeapFree(VAddr target, u32 size);
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ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size,
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MemoryState state = MemoryState::Mapped);
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ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state);
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ResultCode UnmapMemory(VAddr dst_addr, VAddr src_addr, u64 size);
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@ -35,6 +35,7 @@
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#include "core/hle/lock.h"
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#include "core/hle/result.h"
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#include "core/hle/service/service.h"
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#include "core/memory.h"
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namespace Kernel {
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namespace {
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@ -273,7 +274,7 @@ static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
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return result;
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}
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return current_process->MirrorMemory(dst_addr, src_addr, size);
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return current_process->MirrorMemory(dst_addr, src_addr, size, MemoryState::Stack);
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}
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/// Unmaps a region that was previously mapped with svcMapMemory
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@ -1066,10 +1067,9 @@ static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64
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return shared_memory->Unmap(*current_process, addr);
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}
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/// Query process memory
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static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_info*/,
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Handle process_handle, u64 addr) {
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LOG_TRACE(Kernel_SVC, "called process=0x{:08X} addr={:X}", process_handle, addr);
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static ResultCode QueryProcessMemory(VAddr memory_info_address, VAddr page_info_address,
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Handle process_handle, VAddr address) {
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LOG_TRACE(Kernel_SVC, "called process=0x{:08X} address={:X}", process_handle, address);
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const auto& handle_table = Core::CurrentProcess()->GetHandleTable();
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SharedPtr<Process> process = handle_table.Get<Process>(process_handle);
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if (!process) {
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@ -1079,28 +1079,32 @@ static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_i
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}
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const auto& vm_manager = process->VMManager();
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const auto vma = vm_manager.FindVMA(addr);
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const MemoryInfo memory_info = vm_manager.QueryMemory(address);
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memory_info->attributes = 0;
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if (vm_manager.IsValidHandle(vma)) {
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memory_info->base_address = vma->second.base;
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memory_info->permission = static_cast<u32>(vma->second.permissions);
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memory_info->size = vma->second.size;
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memory_info->type = static_cast<u32>(vma->second.meminfo_state);
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} else {
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memory_info->base_address = 0;
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memory_info->permission = static_cast<u32>(VMAPermission::None);
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memory_info->size = 0;
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memory_info->type = static_cast<u32>(MemoryState::Unmapped);
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}
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Memory::Write64(memory_info_address, memory_info.base_address);
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Memory::Write64(memory_info_address + 8, memory_info.size);
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Memory::Write32(memory_info_address + 16, memory_info.state);
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Memory::Write32(memory_info_address + 20, memory_info.attributes);
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Memory::Write32(memory_info_address + 24, memory_info.permission);
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Memory::Write32(memory_info_address + 32, memory_info.ipc_ref_count);
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Memory::Write32(memory_info_address + 28, memory_info.device_ref_count);
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Memory::Write32(memory_info_address + 36, 0);
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// Page info appears to be currently unused by the kernel and is always set to zero.
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Memory::Write32(page_info_address, 0);
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return RESULT_SUCCESS;
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}
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/// Query memory
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static ResultCode QueryMemory(MemoryInfo* memory_info, PageInfo* page_info, VAddr addr) {
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LOG_TRACE(Kernel_SVC, "called, addr={:X}", addr);
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return QueryProcessMemory(memory_info, page_info, CurrentProcess, addr);
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static ResultCode QueryMemory(VAddr memory_info_address, VAddr page_info_address,
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VAddr query_address) {
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LOG_TRACE(Kernel_SVC,
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"called, memory_info_address=0x{:016X}, page_info_address=0x{:016X}, "
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"query_address=0x{:016X}",
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memory_info_address, page_info_address, query_address);
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return QueryProcessMemory(memory_info_address, page_info_address, CurrentProcess,
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query_address);
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}
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/// Exits the current process
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@ -1907,7 +1911,7 @@ static const FunctionDef SVC_Table[] = {
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{0x73, nullptr, "SetProcessMemoryPermission"},
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{0x74, nullptr, "MapProcessMemory"},
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{0x75, nullptr, "UnmapProcessMemory"},
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{0x76, nullptr, "QueryProcessMemory"},
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{0x76, SvcWrap<QueryProcessMemory>, "QueryProcessMemory"},
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{0x77, nullptr, "MapProcessCodeMemory"},
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{0x78, nullptr, "UnmapProcessCodeMemory"},
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{0x79, nullptr, "CreateProcess"},
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@ -8,22 +8,6 @@
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namespace Kernel {
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struct MemoryInfo {
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u64 base_address;
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u64 size;
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u32 type;
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u32 attributes;
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u32 permission;
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u32 device_refcount;
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u32 ipc_refcount;
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INSERT_PADDING_WORDS(1);
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};
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static_assert(sizeof(MemoryInfo) == 0x28, "MemoryInfo has incorrect size.");
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struct PageInfo {
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u64 flags;
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};
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void CallSVC(u32 immediate);
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} // namespace Kernel
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@ -7,9 +7,7 @@
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#include "common/common_types.h"
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#include "core/arm/arm_interface.h"
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#include "core/core.h"
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#include "core/hle/kernel/svc.h"
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#include "core/hle/result.h"
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#include "core/memory.h"
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namespace Kernel {
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@ -132,6 +130,11 @@ void SvcWrap() {
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func(Param(0), Param(1), static_cast<u32>(Param(2)), static_cast<u32>(Param(3))).raw);
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}
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template <ResultCode func(u64, u64, u32, u64)>
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void SvcWrap() {
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FuncReturn(func(Param(0), Param(1), static_cast<u32>(Param(2)), Param(3)).raw);
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}
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template <ResultCode func(u32, u64, u32)>
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void SvcWrap() {
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FuncReturn(func(static_cast<u32>(Param(0)), Param(1), static_cast<u32>(Param(2))).raw);
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@ -191,21 +194,6 @@ void SvcWrap() {
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FuncReturn(retval);
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}
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template <ResultCode func(MemoryInfo*, PageInfo*, u64)>
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void SvcWrap() {
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MemoryInfo memory_info = {};
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PageInfo page_info = {};
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u32 retval = func(&memory_info, &page_info, Param(2)).raw;
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Memory::Write64(Param(0), memory_info.base_address);
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Memory::Write64(Param(0) + 8, memory_info.size);
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Memory::Write32(Param(0) + 16, memory_info.type);
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Memory::Write32(Param(0) + 20, memory_info.attributes);
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Memory::Write32(Param(0) + 24, memory_info.permission);
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FuncReturn(retval);
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}
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template <ResultCode func(u32*, u64, u64, u32)>
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void SvcWrap() {
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u32 param_1 = 0;
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@ -25,14 +25,14 @@ static const char* GetMemoryStateName(MemoryState state) {
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"CodeMutable", "Heap",
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"Shared", "Unknown1",
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"ModuleCodeStatic", "ModuleCodeMutable",
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"IpcBuffer0", "Mapped",
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"IpcBuffer0", "Stack",
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"ThreadLocal", "TransferMemoryIsolated",
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"TransferMemory", "ProcessMemory",
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"Unknown2", "IpcBuffer1",
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"Inaccessible", "IpcBuffer1",
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"IpcBuffer3", "KernelStack",
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};
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return names[static_cast<int>(state)];
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return names[ToSvcMemoryState(state)];
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}
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bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
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@ -302,6 +302,25 @@ ResultCode VMManager::HeapFree(VAddr target, u64 size) {
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return RESULT_SUCCESS;
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}
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MemoryInfo VMManager::QueryMemory(VAddr address) const {
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const auto vma = FindVMA(address);
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MemoryInfo memory_info{};
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if (IsValidHandle(vma)) {
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memory_info.base_address = vma->second.base;
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memory_info.permission = static_cast<u32>(vma->second.permissions);
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memory_info.size = vma->second.size;
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memory_info.state = ToSvcMemoryState(vma->second.meminfo_state);
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} else {
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memory_info.base_address = address_space_end;
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memory_info.permission = static_cast<u32>(VMAPermission::None);
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memory_info.size = 0 - address_space_end;
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memory_info.state = static_cast<u32>(MemoryState::Inaccessible);
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}
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return memory_info;
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}
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ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) {
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const auto vma = FindVMA(src_addr);
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@ -43,26 +43,129 @@ enum class VMAPermission : u8 {
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ReadWriteExecute = Read | Write | Execute,
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};
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/// Set of values returned in MemoryInfo.state by svcQueryMemory.
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// clang-format off
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/// Represents memory states and any relevant flags, as used by the kernel.
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/// svcQueryMemory interprets these by masking away all but the first eight
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/// bits when storing memory state into a MemoryInfo instance.
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enum class MemoryState : u32 {
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Unmapped = 0x0,
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Io = 0x1,
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Normal = 0x2,
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CodeStatic = 0x3,
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CodeMutable = 0x4,
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Heap = 0x5,
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Shared = 0x6,
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ModuleCodeStatic = 0x8,
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ModuleCodeMutable = 0x9,
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IpcBuffer0 = 0xA,
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Mapped = 0xB,
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ThreadLocal = 0xC,
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TransferMemoryIsolated = 0xD,
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TransferMemory = 0xE,
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ProcessMemory = 0xF,
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IpcBuffer1 = 0x11,
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IpcBuffer3 = 0x12,
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KernelStack = 0x13,
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Mask = 0xFF,
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FlagProtect = 1U << 8,
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FlagDebug = 1U << 9,
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FlagIPC0 = 1U << 10,
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FlagIPC3 = 1U << 11,
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FlagIPC1 = 1U << 12,
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FlagMapped = 1U << 13,
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FlagCode = 1U << 14,
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FlagAlias = 1U << 15,
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FlagModule = 1U << 16,
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FlagTransfer = 1U << 17,
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FlagQueryPhysicalAddressAllowed = 1U << 18,
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FlagSharedDevice = 1U << 19,
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FlagSharedDeviceAligned = 1U << 20,
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FlagIPCBuffer = 1U << 21,
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FlagMemoryPoolAllocated = 1U << 22,
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FlagMapProcess = 1U << 23,
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FlagUncached = 1U << 24,
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FlagCodeMemory = 1U << 25,
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// Convenience flag sets to reduce repetition
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IPCFlags = FlagIPC0 | FlagIPC3 | FlagIPC1,
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CodeFlags = FlagDebug | IPCFlags | FlagMapped | FlagCode | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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DataFlags = FlagProtect | IPCFlags | FlagMapped | FlagAlias | FlagTransfer |
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FlagQueryPhysicalAddressAllowed | FlagSharedDevice | FlagSharedDeviceAligned |
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FlagMemoryPoolAllocated | FlagIPCBuffer | FlagUncached,
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Unmapped = 0x00,
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Io = 0x01 | FlagMapped,
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Normal = 0x02 | FlagMapped | FlagQueryPhysicalAddressAllowed,
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CodeStatic = 0x03 | CodeFlags | FlagMapProcess,
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CodeMutable = 0x04 | CodeFlags | FlagMapProcess | FlagCodeMemory,
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Heap = 0x05 | DataFlags | FlagCodeMemory,
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Shared = 0x06 | FlagMapped | FlagMemoryPoolAllocated,
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ModuleCodeStatic = 0x08 | CodeFlags | FlagModule | FlagMapProcess,
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ModuleCodeMutable = 0x09 | DataFlags | FlagModule | FlagMapProcess | FlagCodeMemory,
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IpcBuffer0 = 0x0A | FlagMapped | FlagQueryPhysicalAddressAllowed | FlagMemoryPoolAllocated |
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IPCFlags | FlagSharedDevice | FlagSharedDeviceAligned,
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Stack = 0x0B | FlagMapped | IPCFlags | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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ThreadLocal = 0x0C | FlagMapped | FlagMemoryPoolAllocated,
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TransferMemoryIsolated = 0x0D | IPCFlags | FlagMapped | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated |
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FlagUncached,
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TransferMemory = 0x0E | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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ProcessMemory = 0x0F | FlagIPC3 | FlagIPC1 | FlagMapped | FlagMemoryPoolAllocated,
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// Used to signify an inaccessible or invalid memory region with memory queries
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Inaccessible = 0x10,
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IpcBuffer1 = 0x11 | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed |
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FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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IpcBuffer3 = 0x12 | FlagIPC3 | FlagMapped | FlagQueryPhysicalAddressAllowed |
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FlagSharedDeviceAligned | FlagMemoryPoolAllocated,
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KernelStack = 0x13 | FlagMapped,
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};
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// clang-format on
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constexpr MemoryState operator|(MemoryState lhs, MemoryState rhs) {
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return static_cast<MemoryState>(u32(lhs) | u32(rhs));
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}
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constexpr MemoryState operator&(MemoryState lhs, MemoryState rhs) {
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return static_cast<MemoryState>(u32(lhs) & u32(rhs));
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}
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constexpr MemoryState operator^(MemoryState lhs, MemoryState rhs) {
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return static_cast<MemoryState>(u32(lhs) ^ u32(rhs));
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}
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constexpr MemoryState operator~(MemoryState lhs) {
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return static_cast<MemoryState>(~u32(lhs));
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}
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constexpr MemoryState& operator|=(MemoryState& lhs, MemoryState rhs) {
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lhs = lhs | rhs;
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return lhs;
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}
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constexpr MemoryState& operator&=(MemoryState& lhs, MemoryState rhs) {
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lhs = lhs & rhs;
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return lhs;
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}
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constexpr MemoryState& operator^=(MemoryState& lhs, MemoryState rhs) {
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lhs = lhs ^ rhs;
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return lhs;
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}
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constexpr u32 ToSvcMemoryState(MemoryState state) {
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return static_cast<u32>(state & MemoryState::Mask);
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}
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struct MemoryInfo {
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u64 base_address;
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u64 size;
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u32 state;
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u32 attributes;
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u32 permission;
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u32 ipc_ref_count;
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u32 device_ref_count;
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};
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static_assert(sizeof(MemoryInfo) == 0x28, "MemoryInfo has incorrect size.");
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struct PageInfo {
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u32 flags;
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};
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/**
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@ -186,8 +289,15 @@ public:
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ResultVal<VAddr> HeapAllocate(VAddr target, u64 size, VMAPermission perms);
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ResultCode HeapFree(VAddr target, u64 size);
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ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size,
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MemoryState state = MemoryState::Mapped);
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ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state);
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/// Queries the memory manager for information about the given address.
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///
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/// @param address The address to query the memory manager about for information.
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///
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/// @return A MemoryInfo instance containing information about the given address.
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///
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MemoryInfo QueryMemory(VAddr address) const;
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/**
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* Scans all VMAs and updates the page table range of any that use the given vector as backing
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