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Tests: Added some tests for the VMManager class.

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Covering basic operations like mapping, unmapping, reprotecting and changing memory state.
This commit is contained in:
Subv 2017-11-19 11:25:25 -05:00
parent e4f35f70ac
commit 07089cfb3c
2 changed files with 139 additions and 0 deletions
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1
src/tests/CMakeLists.txt
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@ -7,6 +7,7 @@ add_executable(tests
core/file_sys/path_parser.cpp core/file_sys/path_parser.cpp
core/hle/kernel/hle_ipc.cpp core/hle/kernel/hle_ipc.cpp
core/memory/memory.cpp core/memory/memory.cpp
core/memory/vm_manager.cpp
glad.cpp glad.cpp
tests.cpp tests.cpp
) )

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