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Tests: Added some tests for the VMManager class.
Covering basic operations like mapping, unmapping, reprotecting and changing memory state.
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parent
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commit
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@ -7,6 +7,7 @@ add_executable(tests
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core/file_sys/path_parser.cpp
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core/hle/kernel/hle_ipc.cpp
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core/memory/memory.cpp
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core/memory/vm_manager.cpp
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glad.cpp
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tests.cpp
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)
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138
src/tests/core/memory/vm_manager.cpp
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138
src/tests/core/memory/vm_manager.cpp
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@ -0,0 +1,138 @@
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// Copyright 2017 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <vector>
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#include <catch.hpp>
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#include "core/hle/kernel/errors.h"
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#include "core/hle/kernel/memory.h"
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#include "core/hle/kernel/vm_manager.h"
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#include "core/memory.h"
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TEST_CASE("Memory Basics", "[kernel][memory]") {
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auto block = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
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SECTION("mapping memory") {
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// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
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auto manager = std::make_unique<Kernel::VMManager>();
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auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
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Kernel::MemoryState::Private);
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REQUIRE(result.Code() == RESULT_SUCCESS);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.size == block->size());
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CHECK(vma->second.type == Kernel::VMAType::AllocatedMemoryBlock);
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CHECK(vma->second.backing_block == block);
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CHECK(vma->second.meminfo_state == Kernel::MemoryState::Private);
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}
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SECTION("unmapping memory") {
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// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
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auto manager = std::make_unique<Kernel::VMManager>();
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auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
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Kernel::MemoryState::Private);
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REQUIRE(result.Code() == RESULT_SUCCESS);
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ResultCode code = manager->UnmapRange(Memory::HEAP_VADDR, block->size());
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REQUIRE(code == RESULT_SUCCESS);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.type == Kernel::VMAType::Free);
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CHECK(vma->second.backing_block == nullptr);
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}
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SECTION("changing memory permissions") {
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// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
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auto manager = std::make_unique<Kernel::VMManager>();
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auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
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Kernel::MemoryState::Private);
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REQUIRE(result.Code() == RESULT_SUCCESS);
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ResultCode code = manager->ReprotectRange(Memory::HEAP_VADDR, block->size(),
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Kernel::VMAPermission::Execute);
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CHECK(code == RESULT_SUCCESS);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.permissions == Kernel::VMAPermission::Execute);
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code = manager->UnmapRange(Memory::HEAP_VADDR, block->size());
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REQUIRE(code == RESULT_SUCCESS);
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}
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SECTION("changing memory state") {
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// Because of the PageTable, Kernel::VMManager is too big to be created on the stack.
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auto manager = std::make_unique<Kernel::VMManager>();
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auto result = manager->MapMemoryBlock(Memory::HEAP_VADDR, block, 0, block->size(),
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Kernel::MemoryState::Private);
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REQUIRE(result.Code() == RESULT_SUCCESS);
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ResultCode code = manager->ReprotectRange(Memory::HEAP_VADDR, block->size(),
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Kernel::VMAPermission::ReadWrite);
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REQUIRE(code == RESULT_SUCCESS);
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SECTION("with invalid address") {
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ResultCode code = manager->ChangeMemoryState(
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0xFFFFFFFF, block->size(), Kernel::MemoryState::Locked,
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Kernel::VMAPermission::ReadWrite, Kernel::MemoryState::Aliased,
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Kernel::VMAPermission::Execute);
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CHECK(code == Kernel::ERR_INVALID_ADDRESS);
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}
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SECTION("ignoring the original permissions") {
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ResultCode code = manager->ChangeMemoryState(
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Memory::HEAP_VADDR, block->size(), Kernel::MemoryState::Private,
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Kernel::VMAPermission::None, Kernel::MemoryState::Locked,
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Kernel::VMAPermission::Write);
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CHECK(code == RESULT_SUCCESS);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.permissions == Kernel::VMAPermission::Write);
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CHECK(vma->second.meminfo_state == Kernel::MemoryState::Locked);
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}
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SECTION("enforcing the original permissions with correct expectations") {
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ResultCode code = manager->ChangeMemoryState(
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Memory::HEAP_VADDR, block->size(), Kernel::MemoryState::Private,
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Kernel::VMAPermission::ReadWrite, Kernel::MemoryState::Aliased,
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Kernel::VMAPermission::Execute);
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CHECK(code == RESULT_SUCCESS);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.permissions == Kernel::VMAPermission::Execute);
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CHECK(vma->second.meminfo_state == Kernel::MemoryState::Aliased);
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}
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SECTION("with incorrect permission expectations") {
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ResultCode code = manager->ChangeMemoryState(
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Memory::HEAP_VADDR, block->size(), Kernel::MemoryState::Private,
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Kernel::VMAPermission::Execute, Kernel::MemoryState::Aliased,
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Kernel::VMAPermission::Execute);
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CHECK(code == Kernel::ERR_INVALID_ADDRESS_STATE);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.permissions == Kernel::VMAPermission::ReadWrite);
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CHECK(vma->second.meminfo_state == Kernel::MemoryState::Private);
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}
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SECTION("with incorrect state expectations") {
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ResultCode code = manager->ChangeMemoryState(
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Memory::HEAP_VADDR, block->size(), Kernel::MemoryState::Locked,
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Kernel::VMAPermission::ReadWrite, Kernel::MemoryState::Aliased,
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Kernel::VMAPermission::Execute);
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CHECK(code == Kernel::ERR_INVALID_ADDRESS_STATE);
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auto vma = manager->FindVMA(Memory::HEAP_VADDR);
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CHECK(vma != manager->vma_map.end());
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CHECK(vma->second.permissions == Kernel::VMAPermission::ReadWrite);
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CHECK(vma->second.meminfo_state == Kernel::MemoryState::Private);
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}
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code = manager->UnmapRange(Memory::HEAP_VADDR, block->size());
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REQUIRE(code == RESULT_SUCCESS);
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}
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}
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