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vm_manager: Migrate memory querying to the VMManager interface

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Gets rid of the need to directly access the managed VMAs outside of the
memory manager itself just for querying memory.
This commit is contained in:
Lioncash 2018-12-12 11:34:01 -05:00
parent c02b8c895b
commit a8cc03502b
4 changed files with 33 additions and 18 deletions
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20
src/core/hle/kernel/svc.cpp
View file

@ -1068,8 +1068,8 @@ static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64
/// Query process memory
static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_info*/,
Handle process_handle, u64 addr) {
LOG_TRACE(Kernel_SVC, "called process=0x{:08X} addr={:X}", process_handle, addr);
Handle process_handle, u64 address) {
LOG_TRACE(Kernel_SVC, "called process=0x{:08X} address={:X}", process_handle, address);
const auto& handle_table = Core::CurrentProcess()->GetHandleTable();
SharedPtr<Process> process = handle_table.Get<Process>(process_handle);
if (!process) {
@ -1079,21 +1079,9 @@ static ResultCode QueryProcessMemory(MemoryInfo* memory_info, PageInfo* /*page_i
}
const auto& vm_manager = process->VMManager();
const auto vma = vm_manager.FindVMA(addr);
memory_info->attributes = 0;
if (vm_manager.IsValidHandle(vma)) {
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 = ToSvcMemoryState(vma->second.meminfo_state);
} else {
memory_info->base_address = 0;
memory_info->permission = static_cast<u32>(VMAPermission::None);
memory_info->size = 0;
memory_info->type = static_cast<u32>(MemoryState::Unmapped);
}
const auto result = vm_manager.QueryMemory(address);
*memory_info = result;
return RESULT_SUCCESS;
}

2
src/core/hle/kernel/svc_wrap.h
View file

@ -199,7 +199,7 @@ void SvcWrap() {
Memory::Write64(Param(0), memory_info.base_address);
Memory::Write64(Param(0) + 8, memory_info.size);
Memory::Write32(Param(0) + 16, memory_info.type);
Memory::Write32(Param(0) + 16, memory_info.state);
Memory::Write32(Param(0) + 20, memory_info.attributes);
Memory::Write32(Param(0) + 24, memory_info.permission);

19
src/core/hle/kernel/vm_manager.cpp
View file

@ -302,6 +302,25 @@ ResultCode VMManager::HeapFree(VAddr target, u64 size) {
return RESULT_SUCCESS;
}
MemoryInfo VMManager::QueryMemory(VAddr address) const {
const auto vma = FindVMA(address);
MemoryInfo memory_info{};
if (IsValidHandle(vma)) {
memory_info.base_address = vma->second.base;
memory_info.permission = static_cast<u32>(vma->second.permissions);
memory_info.size = vma->second.size;
memory_info.state = ToSvcMemoryState(vma->second.meminfo_state);
} else {
memory_info.base_address = 0;
memory_info.permission = static_cast<u32>(VMAPermission::None);
memory_info.size = 0;
memory_info.state = static_cast<u32>(MemoryState::Unmapped);
}
return memory_info;
}
ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) {
const auto vma = FindVMA(src_addr);

10
src/core/hle/kernel/vm_manager.h
View file

@ -153,7 +153,7 @@ constexpr u32 ToSvcMemoryState(MemoryState state) {
struct MemoryInfo {
u64 base_address;
u64 size;
u32 type;
u32 state;
u32 attributes;
u32 permission;
u32 device_refcount;
@ -288,6 +288,14 @@ public:
ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state);
/// Queries the memory manager for information about the given address.
///
/// @param address The address to query the memory manager about for information.
///
/// @return A MemoryInfo instance containing information about the given address.
///
MemoryInfo QueryMemory(VAddr address) const;
/**
* Scans all VMAs and updates the page table range of any that use the given vector as backing
* memory. This should be called after any operation that causes reallocation of the vector.