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author | Lioncash <mathew1800@gmail.com> | 2019-11-26 19:09:12 +0100 |
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committer | Lioncash <mathew1800@gmail.com> | 2019-11-27 03:53:34 +0100 |
commit | 323680e5ad3ca0e27f2dd1de26816741b3243bed (patch) | |
tree | ac7a9e683831493f0f14c8b9566c0d570807ad62 /src/core | |
parent | core/memory: Introduce skeleton of Memory class (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/CMakeLists.txt | 1 | ||||
-rw-r--r-- | src/core/hle/kernel/vm_manager.cpp | 13 | ||||
-rw-r--r-- | src/core/memory.cpp | 177 | ||||
-rw-r--r-- | src/core/memory.h | 59 | ||||
-rw-r--r-- | src/core/memory_setup.h | 43 |
5 files changed, 172 insertions, 121 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index f2e774a6b..2dfdcb0d7 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -509,7 +509,6 @@ add_library(core STATIC memory/dmnt_cheat_vm.h memory.cpp memory.h - memory_setup.h perf_stats.cpp perf_stats.h reporter.cpp diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp index e6eee09d7..a9a20ef76 100644 --- a/src/core/hle/kernel/vm_manager.cpp +++ b/src/core/hle/kernel/vm_manager.cpp @@ -16,7 +16,6 @@ #include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/vm_manager.h" #include "core/memory.h" -#include "core/memory_setup.h" namespace Kernel { namespace { @@ -786,19 +785,21 @@ void VMManager::MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryAre } void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) { + auto& memory = system.Memory(); + switch (vma.type) { case VMAType::Free: - Memory::UnmapRegion(page_table, vma.base, vma.size); + 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); + 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); + 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); + memory.MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler); break; } } diff --git a/src/core/memory.cpp b/src/core/memory.cpp index 2098f13f7..28b65ca5e 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -17,7 +17,6 @@ #include "core/hle/kernel/process.h" #include "core/hle/kernel/vm_manager.h" #include "core/memory.h" -#include "core/memory_setup.h" #include "video_core/gpu.h" namespace Memory { @@ -30,99 +29,135 @@ static Common::PageTable* current_page_table = nullptr; struct Memory::Impl { explicit Impl(Core::System& system_) : system{system_} {} - Core::System& system; -}; + void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) { + ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); + ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); + MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory); + } -Memory::Memory(Core::System& system) : impl{std::make_unique<Impl>(system)} {} -Memory::~Memory() = default; + void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer mmio_handler) { + ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); + ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); + MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, + Common::PageType::Special); + + const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); + const Common::SpecialRegion region{Common::SpecialRegion::Type::IODevice, + std::move(mmio_handler)}; + page_table.special_regions.add( + std::make_pair(interval, std::set<Common::SpecialRegion>{region})); + } -void SetCurrentPageTable(Kernel::Process& process) { - current_page_table = &process.VMManager().page_table; + void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { + ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); + ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); + MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, + Common::PageType::Unmapped); - const std::size_t address_space_width = process.VMManager().GetAddressSpaceWidth(); + const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); + page_table.special_regions.erase(interval); + } - auto& system = Core::System::GetInstance(); - system.ArmInterface(0).PageTableChanged(*current_page_table, address_space_width); - system.ArmInterface(1).PageTableChanged(*current_page_table, address_space_width); - system.ArmInterface(2).PageTableChanged(*current_page_table, address_space_width); - system.ArmInterface(3).PageTableChanged(*current_page_table, address_space_width); -} + void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook) { + const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); + const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)}; + page_table.special_regions.add( + std::make_pair(interval, std::set<Common::SpecialRegion>{region})); + } + + void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook) { + const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); + const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)}; + page_table.special_regions.subtract( + std::make_pair(interval, std::set<Common::SpecialRegion>{region})); + } -static void MapPages(Common::PageTable& page_table, VAddr base, u64 size, u8* memory, - Common::PageType type) { - LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE, - (base + size) * PAGE_SIZE); - - // During boot, current_page_table might not be set yet, in which case we need not flush - if (Core::System::GetInstance().IsPoweredOn()) { - auto& gpu = Core::System::GetInstance().GPU(); - for (u64 i = 0; i < size; i++) { - const auto page = base + i; - if (page_table.attributes[page] == Common::PageType::RasterizerCachedMemory) { - gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE); + /** + * Maps a region of pages as a specific type. + * + * @param page_table The page table to use to perform the mapping. + * @param base The base address to begin mapping at. + * @param size The total size of the range in bytes. + * @param memory The memory to map. + * @param type The page type to map the memory as. + */ + void MapPages(Common::PageTable& page_table, VAddr base, u64 size, u8* memory, + Common::PageType type) { + LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE, + (base + size) * PAGE_SIZE); + + // During boot, current_page_table might not be set yet, in which case we need not flush + if (system.IsPoweredOn()) { + auto& gpu = system.GPU(); + for (u64 i = 0; i < size; i++) { + const auto page = base + i; + if (page_table.attributes[page] == Common::PageType::RasterizerCachedMemory) { + gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE); + } } } - } - VAddr end = base + size; - ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}", - base + page_table.pointers.size()); + const VAddr end = base + size; + ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}", + base + page_table.pointers.size()); - std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type); + std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type); - if (memory == nullptr) { - std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end, memory); - } else { - while (base != end) { - page_table.pointers[base] = memory; + if (memory == nullptr) { + std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end, + memory); + } else { + while (base != end) { + page_table.pointers[base] = memory; - base += 1; - memory += PAGE_SIZE; + base += 1; + memory += PAGE_SIZE; + } } } -} -void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) { - ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); - ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); - MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory); -} + Core::System& system; +}; -void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer mmio_handler) { - ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); - ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); - MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, Common::PageType::Special); +Memory::Memory(Core::System& system) : impl{std::make_unique<Impl>(system)} {} +Memory::~Memory() = default; - auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); - Common::SpecialRegion region{Common::SpecialRegion::Type::IODevice, std::move(mmio_handler)}; - page_table.special_regions.add( - std::make_pair(interval, std::set<Common::SpecialRegion>{region})); +void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) { + impl->MapMemoryRegion(page_table, base, size, target); } -void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { - ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); - ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); - MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, Common::PageType::Unmapped); +void Memory::MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer mmio_handler) { + impl->MapIoRegion(page_table, base, size, std::move(mmio_handler)); +} + +void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { + impl->UnmapRegion(page_table, base, size); +} - auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); - page_table.special_regions.erase(interval); +void Memory::AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook) { + impl->AddDebugHook(page_table, base, size, std::move(hook)); } -void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); - Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)}; - page_table.special_regions.add( - std::make_pair(interval, std::set<Common::SpecialRegion>{region})); +void Memory::RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook) { + impl->RemoveDebugHook(page_table, base, size, std::move(hook)); } -void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1); - Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)}; - page_table.special_regions.subtract( - std::make_pair(interval, std::set<Common::SpecialRegion>{region})); +void SetCurrentPageTable(Kernel::Process& process) { + current_page_table = &process.VMManager().page_table; + + const std::size_t address_space_width = process.VMManager().GetAddressSpaceWidth(); + + auto& system = Core::System::GetInstance(); + system.ArmInterface(0).PageTableChanged(*current_page_table, address_space_width); + system.ArmInterface(1).PageTableChanged(*current_page_table, address_space_width); + system.ArmInterface(2).PageTableChanged(*current_page_table, address_space_width); + system.ArmInterface(3).PageTableChanged(*current_page_table, address_space_width); } /** diff --git a/src/core/memory.h b/src/core/memory.h index c690df3c3..87ed3b696 100644 --- a/src/core/memory.h +++ b/src/core/memory.h @@ -5,8 +5,14 @@ #pragma once #include <cstddef> +#include <memory> #include <string> #include "common/common_types.h" +#include "common/memory_hook.h" + +namespace Common { +struct PageTable; +} namespace Core { class System; @@ -52,6 +58,59 @@ public: Memory(Memory&&) = default; Memory& operator=(Memory&&) = default; + /** + * Maps an allocated buffer onto a region of the emulated process address space. + * + * @param page_table The page table of the emulated process. + * @param base The address to start mapping at. Must be page-aligned. + * @param size The amount of bytes to map. Must be page-aligned. + * @param target Buffer with the memory backing the mapping. Must be of length at least + * `size`. + */ + void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target); + + /** + * Maps a region of the emulated process address space as a IO region. + * + * @param page_table The page table of the emulated process. + * @param base The address to start mapping at. Must be page-aligned. + * @param size The amount of bytes to map. Must be page-aligned. + * @param mmio_handler The handler that backs the mapping. + */ + void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer mmio_handler); + + /** + * Unmaps a region of the emulated process address space. + * + * @param page_table The page table of the emulated process. + * @param base The address to begin unmapping at. + * @param size The amount of bytes to unmap. + */ + void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size); + + /** + * Adds a memory hook to intercept reads and writes to given region of memory. + * + * @param page_table The page table of the emulated process + * @param base The starting address to apply the hook to. + * @param size The size of the memory region to apply the hook to, in bytes. + * @param hook The hook to apply to the region of memory. + */ + void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook); + + /** + * Removes a memory hook from a given range of memory. + * + * @param page_table The page table of the emulated process. + * @param base The starting address to remove the hook from. + * @param size The size of the memory region to remove the hook from, in bytes. + * @param hook The hook to remove from the specified region of memory. + */ + void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, + Common::MemoryHookPointer hook); + private: struct Impl; std::unique_ptr<Impl> impl; diff --git a/src/core/memory_setup.h b/src/core/memory_setup.h deleted file mode 100644 index 5225ee8e2..000000000 --- a/src/core/memory_setup.h +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include "common/common_types.h" -#include "common/memory_hook.h" - -namespace Common { -struct PageTable; -} - -namespace Memory { - -/** - * Maps an allocated buffer onto a region of the emulated process address space. - * - * @param page_table The page table of the emulated process. - * @param base The address to start mapping at. Must be page-aligned. - * @param size The amount of bytes to map. Must be page-aligned. - * @param target Buffer with the memory backing the mapping. Must be of length at least `size`. - */ -void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target); - -/** - * Maps a region of the emulated process address space as a IO region. - * @param page_table The page table of the emulated process. - * @param base The address to start mapping at. Must be page-aligned. - * @param size The amount of bytes to map. Must be page-aligned. - * @param mmio_handler The handler that backs the mapping. - */ -void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer mmio_handler); - -void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size); - -void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook); -void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook); - -} // namespace Memory |