d4c1b9d311
This was only ever public so that code could check whether or not a handle was valid or not. Instead of exposing the object directly and allowing external code to potentially mess with the map contents, we just provide a member function that allows checking whether or not a handle is valid. This makes all member variables of the VMManager class private except for the page table.
692 lines
23 KiB
C++
692 lines
23 KiB
C++
// Copyright 2015 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 <algorithm>
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#include <iterator>
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#include <utility>
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#include "common/assert.h"
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#include "common/logging/log.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/file_sys/program_metadata.h"
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#include "core/hle/kernel/errors.h"
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#include "core/hle/kernel/vm_manager.h"
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#include "core/memory.h"
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#include "core/memory_hook.h"
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#include "core/memory_setup.h"
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namespace Kernel {
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static const char* GetMemoryStateName(MemoryState state) {
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static constexpr const char* names[] = {
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"Unmapped", "Io",
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"Normal", "CodeStatic",
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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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"ThreadLocal", "TransferMemoryIsolated",
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"TransferMemory", "ProcessMemory",
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"Unknown2", "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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}
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bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
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ASSERT(base + size == next.base);
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if (permissions != next.permissions || meminfo_state != next.meminfo_state ||
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type != next.type) {
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return false;
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}
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if (type == VMAType::AllocatedMemoryBlock &&
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(backing_block != next.backing_block || offset + size != next.offset)) {
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return false;
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}
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if (type == VMAType::BackingMemory && backing_memory + size != next.backing_memory) {
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return false;
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}
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if (type == VMAType::MMIO && paddr + size != next.paddr) {
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return false;
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}
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return true;
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}
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VMManager::VMManager() {
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// Default to assuming a 39-bit address space. This way we have a sane
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// starting point with executables that don't provide metadata.
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Reset(FileSys::ProgramAddressSpaceType::Is39Bit);
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}
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VMManager::~VMManager() {
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Reset(FileSys::ProgramAddressSpaceType::Is39Bit);
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}
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void VMManager::Reset(FileSys::ProgramAddressSpaceType type) {
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Clear();
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InitializeMemoryRegionRanges(type);
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page_table.Resize(address_space_width);
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// Initialize the map with a single free region covering the entire managed space.
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VirtualMemoryArea initial_vma;
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initial_vma.size = address_space_end;
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vma_map.emplace(initial_vma.base, initial_vma);
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UpdatePageTableForVMA(initial_vma);
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}
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VMManager::VMAHandle VMManager::FindVMA(VAddr target) const {
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if (target >= address_space_end) {
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return vma_map.end();
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} else {
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return std::prev(vma_map.upper_bound(target));
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}
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}
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bool VMManager::IsValidHandle(VMAHandle handle) const {
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return handle != vma_map.cend();
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}
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ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target,
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std::shared_ptr<std::vector<u8>> block,
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std::size_t offset, u64 size,
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MemoryState state) {
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ASSERT(block != nullptr);
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ASSERT(offset + size <= block->size());
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// This is the appropriately sized VMA that will turn into our allocation.
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CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size));
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VirtualMemoryArea& final_vma = vma_handle->second;
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ASSERT(final_vma.size == size);
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auto& system = Core::System::GetInstance();
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system.ArmInterface(0).MapBackingMemory(target, size, block->data() + offset,
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VMAPermission::ReadWriteExecute);
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system.ArmInterface(1).MapBackingMemory(target, size, block->data() + offset,
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VMAPermission::ReadWriteExecute);
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system.ArmInterface(2).MapBackingMemory(target, size, block->data() + offset,
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VMAPermission::ReadWriteExecute);
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system.ArmInterface(3).MapBackingMemory(target, size, block->data() + offset,
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VMAPermission::ReadWriteExecute);
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final_vma.type = VMAType::AllocatedMemoryBlock;
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final_vma.permissions = VMAPermission::ReadWrite;
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final_vma.meminfo_state = state;
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final_vma.backing_block = std::move(block);
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final_vma.offset = offset;
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UpdatePageTableForVMA(final_vma);
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return MakeResult<VMAHandle>(MergeAdjacent(vma_handle));
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}
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ResultVal<VMManager::VMAHandle> VMManager::MapBackingMemory(VAddr target, u8* memory, u64 size,
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MemoryState state) {
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ASSERT(memory != nullptr);
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// This is the appropriately sized VMA that will turn into our allocation.
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CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size));
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VirtualMemoryArea& final_vma = vma_handle->second;
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ASSERT(final_vma.size == size);
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auto& system = Core::System::GetInstance();
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system.ArmInterface(0).MapBackingMemory(target, size, memory, VMAPermission::ReadWriteExecute);
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system.ArmInterface(1).MapBackingMemory(target, size, memory, VMAPermission::ReadWriteExecute);
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system.ArmInterface(2).MapBackingMemory(target, size, memory, VMAPermission::ReadWriteExecute);
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system.ArmInterface(3).MapBackingMemory(target, size, memory, VMAPermission::ReadWriteExecute);
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final_vma.type = VMAType::BackingMemory;
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final_vma.permissions = VMAPermission::ReadWrite;
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final_vma.meminfo_state = state;
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final_vma.backing_memory = memory;
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UpdatePageTableForVMA(final_vma);
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return MakeResult<VMAHandle>(MergeAdjacent(vma_handle));
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}
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ResultVal<VAddr> VMManager::FindFreeRegion(u64 size) const {
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// Find the first Free VMA.
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const VAddr base = GetASLRRegionBaseAddress();
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const VMAHandle vma_handle = std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) {
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if (vma.second.type != VMAType::Free)
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return false;
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const VAddr vma_end = vma.second.base + vma.second.size;
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return vma_end > base && vma_end >= base + size;
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});
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if (vma_handle == vma_map.end()) {
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// TODO(Subv): Find the correct error code here.
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return ResultCode(-1);
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}
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const VAddr target = std::max(base, vma_handle->second.base);
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return MakeResult<VAddr>(target);
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}
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ResultVal<VMManager::VMAHandle> VMManager::MapMMIO(VAddr target, PAddr paddr, u64 size,
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MemoryState state,
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Memory::MemoryHookPointer mmio_handler) {
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// This is the appropriately sized VMA that will turn into our allocation.
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CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size));
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VirtualMemoryArea& final_vma = vma_handle->second;
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ASSERT(final_vma.size == size);
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final_vma.type = VMAType::MMIO;
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final_vma.permissions = VMAPermission::ReadWrite;
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final_vma.meminfo_state = state;
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final_vma.paddr = paddr;
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final_vma.mmio_handler = std::move(mmio_handler);
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UpdatePageTableForVMA(final_vma);
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return MakeResult<VMAHandle>(MergeAdjacent(vma_handle));
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}
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VMManager::VMAIter VMManager::Unmap(VMAIter vma_handle) {
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VirtualMemoryArea& vma = vma_handle->second;
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vma.type = VMAType::Free;
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vma.permissions = VMAPermission::None;
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vma.meminfo_state = MemoryState::Unmapped;
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vma.backing_block = nullptr;
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vma.offset = 0;
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vma.backing_memory = nullptr;
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vma.paddr = 0;
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UpdatePageTableForVMA(vma);
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return MergeAdjacent(vma_handle);
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}
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ResultCode VMManager::UnmapRange(VAddr target, u64 size) {
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CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size));
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const VAddr target_end = target + size;
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const VMAIter end = vma_map.end();
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// The comparison against the end of the range must be done using addresses since VMAs can be
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// merged during this process, causing invalidation of the iterators.
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while (vma != end && vma->second.base < target_end) {
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vma = std::next(Unmap(vma));
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}
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ASSERT(FindVMA(target)->second.size >= size);
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auto& system = Core::System::GetInstance();
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system.ArmInterface(0).UnmapMemory(target, size);
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system.ArmInterface(1).UnmapMemory(target, size);
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system.ArmInterface(2).UnmapMemory(target, size);
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system.ArmInterface(3).UnmapMemory(target, size);
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return RESULT_SUCCESS;
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}
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VMManager::VMAHandle VMManager::Reprotect(VMAHandle vma_handle, VMAPermission new_perms) {
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VMAIter iter = StripIterConstness(vma_handle);
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VirtualMemoryArea& vma = iter->second;
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vma.permissions = new_perms;
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UpdatePageTableForVMA(vma);
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return MergeAdjacent(iter);
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}
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ResultCode VMManager::ReprotectRange(VAddr target, u64 size, VMAPermission new_perms) {
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CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size));
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const VAddr target_end = target + size;
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const VMAIter end = vma_map.end();
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// The comparison against the end of the range must be done using addresses since VMAs can be
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// merged during this process, causing invalidation of the iterators.
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while (vma != end && vma->second.base < target_end) {
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vma = std::next(StripIterConstness(Reprotect(vma, new_perms)));
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}
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return RESULT_SUCCESS;
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}
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ResultVal<VAddr> VMManager::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {
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if (target < GetHeapRegionBaseAddress() || target + size > GetHeapRegionEndAddress() ||
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target + size < target) {
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return ERR_INVALID_ADDRESS;
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}
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if (heap_memory == nullptr) {
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// Initialize heap
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heap_memory = std::make_shared<std::vector<u8>>();
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heap_start = heap_end = target;
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} else {
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UnmapRange(heap_start, heap_end - heap_start);
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}
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// If necessary, expand backing vector to cover new heap extents.
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if (target < heap_start) {
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heap_memory->insert(begin(*heap_memory), heap_start - target, 0);
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heap_start = target;
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RefreshMemoryBlockMappings(heap_memory.get());
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}
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if (target + size > heap_end) {
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heap_memory->insert(end(*heap_memory), (target + size) - heap_end, 0);
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heap_end = target + size;
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RefreshMemoryBlockMappings(heap_memory.get());
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}
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ASSERT(heap_end - heap_start == heap_memory->size());
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CASCADE_RESULT(auto vma, MapMemoryBlock(target, heap_memory, target - heap_start, size,
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MemoryState::Heap));
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Reprotect(vma, perms);
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heap_used = size;
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return MakeResult<VAddr>(heap_end - size);
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}
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ResultCode VMManager::HeapFree(VAddr target, u64 size) {
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if (target < GetHeapRegionBaseAddress() || target + size > GetHeapRegionEndAddress() ||
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target + size < target) {
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return ERR_INVALID_ADDRESS;
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}
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if (size == 0) {
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return RESULT_SUCCESS;
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}
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const ResultCode result = UnmapRange(target, size);
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if (result.IsError()) {
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return result;
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}
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heap_used -= size;
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return RESULT_SUCCESS;
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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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ASSERT_MSG(vma != vma_map.end(), "Invalid memory address");
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ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address");
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// The returned VMA might be a bigger one encompassing the desired address.
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const auto vma_offset = src_addr - vma->first;
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ASSERT_MSG(vma_offset + size <= vma->second.size,
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"Shared memory exceeds bounds of mapped block");
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const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
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const std::size_t backing_block_offset = vma->second.offset + vma_offset;
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CASCADE_RESULT(auto new_vma,
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MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size, state));
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// Protect mirror with permissions from old region
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Reprotect(new_vma, vma->second.permissions);
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// Remove permissions from old region
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Reprotect(vma, VMAPermission::None);
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return RESULT_SUCCESS;
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}
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void VMManager::RefreshMemoryBlockMappings(const std::vector<u8>* block) {
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// If this ever proves to have a noticeable performance impact, allow users of the function to
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// specify a specific range of addresses to limit the scan to.
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for (const auto& p : vma_map) {
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const VirtualMemoryArea& vma = p.second;
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if (block == vma.backing_block.get()) {
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UpdatePageTableForVMA(vma);
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}
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}
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}
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void VMManager::LogLayout() const {
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for (const auto& p : vma_map) {
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const VirtualMemoryArea& vma = p.second;
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LOG_DEBUG(Kernel, "{:016X} - {:016X} size: {:016X} {}{}{} {}", vma.base,
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vma.base + vma.size, vma.size,
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(u8)vma.permissions & (u8)VMAPermission::Read ? 'R' : '-',
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(u8)vma.permissions & (u8)VMAPermission::Write ? 'W' : '-',
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(u8)vma.permissions & (u8)VMAPermission::Execute ? 'X' : '-',
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GetMemoryStateName(vma.meminfo_state));
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}
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}
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VMManager::VMAIter VMManager::StripIterConstness(const VMAHandle& iter) {
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// This uses a neat C++ trick to convert a const_iterator to a regular iterator, given
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// non-const access to its container.
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return vma_map.erase(iter, iter); // Erases an empty range of elements
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}
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ResultVal<VMManager::VMAIter> VMManager::CarveVMA(VAddr base, u64 size) {
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ASSERT_MSG((size & Memory::PAGE_MASK) == 0, "non-page aligned size: 0x{:016X}", size);
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ASSERT_MSG((base & Memory::PAGE_MASK) == 0, "non-page aligned base: 0x{:016X}", base);
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VMAIter vma_handle = StripIterConstness(FindVMA(base));
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if (vma_handle == vma_map.end()) {
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// Target address is outside the range managed by the kernel
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return ERR_INVALID_ADDRESS;
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}
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const VirtualMemoryArea& vma = vma_handle->second;
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if (vma.type != VMAType::Free) {
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// Region is already allocated
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return ERR_INVALID_ADDRESS_STATE;
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}
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const VAddr start_in_vma = base - vma.base;
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const VAddr end_in_vma = start_in_vma + size;
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if (end_in_vma > vma.size) {
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// Requested allocation doesn't fit inside VMA
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return ERR_INVALID_ADDRESS_STATE;
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}
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if (end_in_vma != vma.size) {
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// Split VMA at the end of the allocated region
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SplitVMA(vma_handle, end_in_vma);
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}
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if (start_in_vma != 0) {
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// Split VMA at the start of the allocated region
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vma_handle = SplitVMA(vma_handle, start_in_vma);
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}
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return MakeResult<VMAIter>(vma_handle);
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}
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ResultVal<VMManager::VMAIter> VMManager::CarveVMARange(VAddr target, u64 size) {
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ASSERT_MSG((size & Memory::PAGE_MASK) == 0, "non-page aligned size: 0x{:016X}", size);
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ASSERT_MSG((target & Memory::PAGE_MASK) == 0, "non-page aligned base: 0x{:016X}", target);
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const VAddr target_end = target + size;
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ASSERT(target_end >= target);
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ASSERT(target_end <= address_space_end);
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ASSERT(size > 0);
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VMAIter begin_vma = StripIterConstness(FindVMA(target));
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const VMAIter i_end = vma_map.lower_bound(target_end);
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if (std::any_of(begin_vma, i_end,
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[](const auto& entry) { return entry.second.type == VMAType::Free; })) {
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return ERR_INVALID_ADDRESS_STATE;
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}
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if (target != begin_vma->second.base) {
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begin_vma = SplitVMA(begin_vma, target - begin_vma->second.base);
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}
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VMAIter end_vma = StripIterConstness(FindVMA(target_end));
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if (end_vma != vma_map.end() && target_end != end_vma->second.base) {
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end_vma = SplitVMA(end_vma, target_end - end_vma->second.base);
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}
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return MakeResult<VMAIter>(begin_vma);
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}
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VMManager::VMAIter VMManager::SplitVMA(VMAIter vma_handle, u64 offset_in_vma) {
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VirtualMemoryArea& old_vma = vma_handle->second;
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VirtualMemoryArea new_vma = old_vma; // Make a copy of the VMA
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// For now, don't allow no-op VMA splits (trying to split at a boundary) because it's probably
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// a bug. This restriction might be removed later.
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ASSERT(offset_in_vma < old_vma.size);
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ASSERT(offset_in_vma > 0);
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old_vma.size = offset_in_vma;
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new_vma.base += offset_in_vma;
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new_vma.size -= offset_in_vma;
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switch (new_vma.type) {
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case VMAType::Free:
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break;
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case VMAType::AllocatedMemoryBlock:
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new_vma.offset += offset_in_vma;
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break;
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case VMAType::BackingMemory:
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new_vma.backing_memory += offset_in_vma;
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break;
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case VMAType::MMIO:
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new_vma.paddr += offset_in_vma;
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break;
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}
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ASSERT(old_vma.CanBeMergedWith(new_vma));
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return vma_map.emplace_hint(std::next(vma_handle), new_vma.base, new_vma);
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}
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VMManager::VMAIter VMManager::MergeAdjacent(VMAIter iter) {
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const VMAIter next_vma = std::next(iter);
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if (next_vma != vma_map.end() && iter->second.CanBeMergedWith(next_vma->second)) {
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|
iter->second.size += next_vma->second.size;
|
|
vma_map.erase(next_vma);
|
|
}
|
|
|
|
if (iter != vma_map.begin()) {
|
|
VMAIter prev_vma = std::prev(iter);
|
|
if (prev_vma->second.CanBeMergedWith(iter->second)) {
|
|
prev_vma->second.size += iter->second.size;
|
|
vma_map.erase(iter);
|
|
iter = prev_vma;
|
|
}
|
|
}
|
|
|
|
return iter;
|
|
}
|
|
|
|
void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
|
|
switch (vma.type) {
|
|
case VMAType::Free:
|
|
Memory::UnmapRegion(page_table, vma.base, vma.size);
|
|
break;
|
|
case VMAType::AllocatedMemoryBlock:
|
|
Memory::MapMemoryRegion(page_table, vma.base, vma.size,
|
|
vma.backing_block->data() + vma.offset);
|
|
break;
|
|
case VMAType::BackingMemory:
|
|
Memory::MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory);
|
|
break;
|
|
case VMAType::MMIO:
|
|
Memory::MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void VMManager::InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType type) {
|
|
u64 map_region_size = 0;
|
|
u64 heap_region_size = 0;
|
|
u64 new_map_region_size = 0;
|
|
u64 tls_io_region_size = 0;
|
|
|
|
switch (type) {
|
|
case FileSys::ProgramAddressSpaceType::Is32Bit:
|
|
case FileSys::ProgramAddressSpaceType::Is32BitNoMap:
|
|
address_space_width = 32;
|
|
code_region_base = 0x200000;
|
|
code_region_end = code_region_base + 0x3FE00000;
|
|
aslr_region_base = 0x200000;
|
|
aslr_region_end = aslr_region_base + 0xFFE00000;
|
|
if (type == FileSys::ProgramAddressSpaceType::Is32Bit) {
|
|
map_region_size = 0x40000000;
|
|
heap_region_size = 0x40000000;
|
|
} else {
|
|
map_region_size = 0;
|
|
heap_region_size = 0x80000000;
|
|
}
|
|
break;
|
|
case FileSys::ProgramAddressSpaceType::Is36Bit:
|
|
address_space_width = 36;
|
|
code_region_base = 0x8000000;
|
|
code_region_end = code_region_base + 0x78000000;
|
|
aslr_region_base = 0x8000000;
|
|
aslr_region_end = aslr_region_base + 0xFF8000000;
|
|
map_region_size = 0x180000000;
|
|
heap_region_size = 0x180000000;
|
|
break;
|
|
case FileSys::ProgramAddressSpaceType::Is39Bit:
|
|
address_space_width = 39;
|
|
code_region_base = 0x8000000;
|
|
code_region_end = code_region_base + 0x80000000;
|
|
aslr_region_base = 0x8000000;
|
|
aslr_region_end = aslr_region_base + 0x7FF8000000;
|
|
map_region_size = 0x1000000000;
|
|
heap_region_size = 0x180000000;
|
|
new_map_region_size = 0x80000000;
|
|
tls_io_region_size = 0x1000000000;
|
|
break;
|
|
default:
|
|
UNREACHABLE_MSG("Invalid address space type specified: {}", static_cast<u32>(type));
|
|
return;
|
|
}
|
|
|
|
address_space_base = 0;
|
|
address_space_end = 1ULL << address_space_width;
|
|
|
|
map_region_base = code_region_end;
|
|
map_region_end = map_region_base + map_region_size;
|
|
|
|
heap_region_base = map_region_end;
|
|
heap_region_end = heap_region_base + heap_region_size;
|
|
|
|
new_map_region_base = heap_region_end;
|
|
new_map_region_end = new_map_region_base + new_map_region_size;
|
|
|
|
tls_io_region_base = new_map_region_end;
|
|
tls_io_region_end = tls_io_region_base + tls_io_region_size;
|
|
|
|
if (new_map_region_size == 0) {
|
|
new_map_region_base = address_space_base;
|
|
new_map_region_end = address_space_end;
|
|
}
|
|
}
|
|
|
|
void VMManager::Clear() {
|
|
ClearVMAMap();
|
|
ClearPageTable();
|
|
}
|
|
|
|
void VMManager::ClearVMAMap() {
|
|
vma_map.clear();
|
|
}
|
|
|
|
void VMManager::ClearPageTable() {
|
|
std::fill(page_table.pointers.begin(), page_table.pointers.end(), nullptr);
|
|
page_table.special_regions.clear();
|
|
std::fill(page_table.attributes.begin(), page_table.attributes.end(),
|
|
Memory::PageType::Unmapped);
|
|
}
|
|
|
|
u64 VMManager::GetTotalMemoryUsage() const {
|
|
LOG_WARNING(Kernel, "(STUBBED) called");
|
|
return 0xF8000000;
|
|
}
|
|
|
|
u64 VMManager::GetTotalHeapUsage() const {
|
|
return heap_used;
|
|
}
|
|
|
|
VAddr VMManager::GetAddressSpaceBaseAddress() const {
|
|
return address_space_base;
|
|
}
|
|
|
|
VAddr VMManager::GetAddressSpaceEndAddress() const {
|
|
return address_space_end;
|
|
}
|
|
|
|
u64 VMManager::GetAddressSpaceSize() const {
|
|
return address_space_end - address_space_base;
|
|
}
|
|
|
|
u64 VMManager::GetAddressSpaceWidth() const {
|
|
return address_space_width;
|
|
}
|
|
|
|
VAddr VMManager::GetASLRRegionBaseAddress() const {
|
|
return aslr_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetASLRRegionEndAddress() const {
|
|
return aslr_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetASLRRegionSize() const {
|
|
return aslr_region_end - aslr_region_base;
|
|
}
|
|
|
|
bool VMManager::IsWithinASLRRegion(VAddr begin, u64 size) const {
|
|
const VAddr range_end = begin + size;
|
|
const VAddr aslr_start = GetASLRRegionBaseAddress();
|
|
const VAddr aslr_end = GetASLRRegionEndAddress();
|
|
|
|
if (aslr_start > begin || begin > range_end || range_end - 1 > aslr_end - 1) {
|
|
return false;
|
|
}
|
|
|
|
if (range_end > heap_region_base && heap_region_end > begin) {
|
|
return false;
|
|
}
|
|
|
|
if (range_end > map_region_base && map_region_end > begin) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
VAddr VMManager::GetCodeRegionBaseAddress() const {
|
|
return code_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetCodeRegionEndAddress() const {
|
|
return code_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetCodeRegionSize() const {
|
|
return code_region_end - code_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetHeapRegionBaseAddress() const {
|
|
return heap_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetHeapRegionEndAddress() const {
|
|
return heap_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetHeapRegionSize() const {
|
|
return heap_region_end - heap_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetMapRegionBaseAddress() const {
|
|
return map_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetMapRegionEndAddress() const {
|
|
return map_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetMapRegionSize() const {
|
|
return map_region_end - map_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetNewMapRegionBaseAddress() const {
|
|
return new_map_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetNewMapRegionEndAddress() const {
|
|
return new_map_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetNewMapRegionSize() const {
|
|
return new_map_region_end - new_map_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetTLSIORegionBaseAddress() const {
|
|
return tls_io_region_base;
|
|
}
|
|
|
|
VAddr VMManager::GetTLSIORegionEndAddress() const {
|
|
return tls_io_region_end;
|
|
}
|
|
|
|
u64 VMManager::GetTLSIORegionSize() const {
|
|
return tls_io_region_end - tls_io_region_base;
|
|
}
|
|
|
|
} // namespace Kernel
|