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kern: finish SvcGetSystemInfo
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3 changed files with 58 additions and 0 deletions
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@ -73,6 +73,8 @@ namespace ams::kern {
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constexpr size_t GetSize() const { return this->heap.GetSize(); }
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constexpr KVirtualAddress GetEndAddress() const { return this->heap.GetEndAddress(); }
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size_t GetFreeSize() const { return this->heap.GetFreeSize(); }
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constexpr void SetNext(Impl *n) { this->next = n; }
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constexpr void SetPrev(Impl *n) { this->prev = n; }
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constexpr Impl *GetNext() const { return this->next; }
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@ -204,6 +206,23 @@ namespace ams::kern {
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}
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return total;
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}
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size_t GetFreeSize() {
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size_t total = 0;
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for (size_t i = 0; i < this->num_managers; i++) {
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total += this->managers[i].GetFreeSize();
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}
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return total;
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}
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size_t GetFreeSize(Pool pool) {
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constexpr Direction GetSizeDirection = Direction_FromFront;
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size_t total = 0;
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for (auto *manager = this->GetFirstManager(pool, GetSizeDirection); manager != nullptr; manager = this->GetNextManager(manager, GetSizeDirection)) {
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total += manager->GetFreeSize();
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}
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return total;
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}
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public:
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static size_t CalculateMetadataOverheadSize(size_t region_size) {
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return Impl::CalculateMetadataOverheadSize(region_size);
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@ -145,6 +145,8 @@ namespace ams::kern {
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return Initialize(heap_address, heap_size, metadata_address, metadata_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
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}
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size_t GetFreeSize() const { return this->GetNumFreePages() * PageSize; }
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void UpdateUsedSize() {
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this->used_size = this->heap_size - (this->GetNumFreePages() * PageSize);
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}
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@ -139,11 +139,48 @@ namespace ams::kern::svc {
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return ResultSuccess();
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}
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constexpr bool IsValidMemoryPool(u64 pool) {
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switch (static_cast<KMemoryManager::Pool>(pool)) {
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case KMemoryManager::Pool_Application:
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case KMemoryManager::Pool_Applet:
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case KMemoryManager::Pool_System:
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case KMemoryManager::Pool_SystemNonSecure:
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return true;
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default:
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return false;
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}
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}
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Result GetSystemInfo(u64 *out, ams::svc::SystemInfoType info_type, ams::svc::Handle handle, u64 info_subtype) {
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MESOSPHERE_LOG("GetSystemInfo(%p, %u, %08x, %lu) was called\n", out, static_cast<u32>(info_type), static_cast<u32>(handle), info_subtype);
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ON_SCOPE_EXIT{ MESOSPHERE_LOG("GetSystemInfo returned %016lx\n", *out); };
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switch (info_type) {
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case ams::svc::SystemInfoType_TotalPhysicalMemorySize:
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case ams::svc::SystemInfoType_UsedPhysicalMemorySize:
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{
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/* Verify the input handle is invalid. */
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R_UNLESS(handle == ams::svc::InvalidHandle, svc::ResultInvalidHandle());
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/* Verify the sub-type is valid. */
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R_UNLESS(IsValidMemoryPool(info_subtype), svc::ResultInvalidCombination());
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/* Convert to pool. */
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const auto pool = static_cast<KMemoryManager::Pool>(info_subtype);
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/* Get the memory size. */
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auto &mm = Kernel::GetMemoryManager();
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switch (info_type) {
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case ams::svc::SystemInfoType_TotalPhysicalMemorySize:
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*out = mm.GetSize(pool);
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break;
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case ams::svc::SystemInfoType_UsedPhysicalMemorySize:
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*out = mm.GetSize(pool) - mm.GetFreeSize(pool);
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break;
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MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
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}
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}
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break;
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case ams::svc::SystemInfoType_InitialProcessIdRange:
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{
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R_UNLESS(handle == ams::svc::InvalidHandle, svc::ResultInvalidHandle());
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