From 6d30745d772c7e332bbea1462a92033386b85b08 Mon Sep 17 00:00:00 2001 From: MerryMage Date: Fri, 1 Jan 2021 11:30:30 +0000 Subject: [PATCH] memory: Remove MemoryHook --- src/common/CMakeLists.txt | 2 - src/common/memory_hook.cpp | 11 -- src/common/memory_hook.h | 47 -------- src/common/page_table.h | 18 --- src/core/memory.cpp | 30 ----- src/core/memory.h | 34 ------ src/tests/CMakeLists.txt | 2 - src/tests/core/arm/arm_test_common.cpp | 145 ------------------------- src/tests/core/arm/arm_test_common.h | 93 ---------------- 9 files changed, 382 deletions(-) delete mode 100644 src/common/memory_hook.cpp delete mode 100644 src/common/memory_hook.h delete mode 100644 src/tests/core/arm/arm_test_common.cpp delete mode 100644 src/tests/core/arm/arm_test_common.h diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index 5c8003eb1..2c2bd2ee8 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -135,8 +135,6 @@ add_library(common STATIC math_util.h memory_detect.cpp memory_detect.h - memory_hook.cpp - memory_hook.h microprofile.cpp microprofile.h microprofileui.h diff --git a/src/common/memory_hook.cpp b/src/common/memory_hook.cpp deleted file mode 100644 index 3986986d6..000000000 --- a/src/common/memory_hook.cpp +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2018 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "common/memory_hook.h" - -namespace Common { - -MemoryHook::~MemoryHook() = default; - -} // namespace Common diff --git a/src/common/memory_hook.h b/src/common/memory_hook.h deleted file mode 100644 index adaa4c2c5..000000000 --- a/src/common/memory_hook.h +++ /dev/null @@ -1,47 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include -#include - -#include "common/common_types.h" - -namespace Common { - -/** - * Memory hooks have two purposes: - * 1. To allow reads and writes to a region of memory to be intercepted. This is used to implement - * texture forwarding and memory breakpoints for debugging. - * 2. To allow for the implementation of MMIO devices. - * - * A hook may be mapped to multiple regions of memory. - * - * If a std::nullopt or false is returned from a function, the read/write request is passed through - * to the underlying memory region. - */ -class MemoryHook { -public: - virtual ~MemoryHook(); - - virtual std::optional IsValidAddress(VAddr addr) = 0; - - virtual std::optional Read8(VAddr addr) = 0; - virtual std::optional Read16(VAddr addr) = 0; - virtual std::optional Read32(VAddr addr) = 0; - virtual std::optional Read64(VAddr addr) = 0; - - virtual bool ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size) = 0; - - virtual bool Write8(VAddr addr, u8 data) = 0; - virtual bool Write16(VAddr addr, u16 data) = 0; - virtual bool Write32(VAddr addr, u32 data) = 0; - virtual bool Write64(VAddr addr, u64 data) = 0; - - virtual bool WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size) = 0; -}; - -using MemoryHookPointer = std::shared_ptr; -} // namespace Common diff --git a/src/common/page_table.h b/src/common/page_table.h index 8d4ee9249..0c14e6433 100644 --- a/src/common/page_table.h +++ b/src/common/page_table.h @@ -8,7 +8,6 @@ #include #include "common/common_types.h" -#include "common/memory_hook.h" #include "common/virtual_buffer.h" namespace Common { @@ -23,23 +22,6 @@ enum class PageType : u8 { RasterizerCachedMemory, }; -struct SpecialRegion { - enum class Type { - DebugHook, - IODevice, - } type; - - MemoryHookPointer handler; - - [[nodiscard]] bool operator<(const SpecialRegion& other) const { - return std::tie(type, handler) < std::tie(other.type, other.handler); - } - - [[nodiscard]] bool operator==(const SpecialRegion& other) const { - return std::tie(type, handler) == std::tie(other.type, other.handler); - } -}; - /** * A (reasonably) fast way of allowing switchable and remappable process address spaces. It loosely * mimics the way a real CPU page table works. diff --git a/src/core/memory.cpp b/src/core/memory.cpp index f209c4949..11609682a 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -44,27 +44,12 @@ struct Memory::Impl { MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory); } - void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer mmio_handler) { - UNIMPLEMENTED(); - } - 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, 0, Common::PageType::Unmapped); } - void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - UNIMPLEMENTED(); - } - - void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - UNIMPLEMENTED(); - } - bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) const { const auto& page_table = process.PageTable().PageTableImpl(); const auto [pointer, type] = page_table.pointers[vaddr >> PAGE_BITS].PointerType(); @@ -740,25 +725,10 @@ void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size impl->MapMemoryRegion(page_table, base, size, target); } -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); } -void Memory::AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - impl->AddDebugHook(page_table, base, size, std::move(hook)); -} - -void Memory::RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size, - Common::MemoryHookPointer hook) { - impl->RemoveDebugHook(page_table, base, size, std::move(hook)); -} - bool Memory::IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) const { return impl->IsValidVirtualAddress(process, vaddr); } diff --git a/src/core/memory.h b/src/core/memory.h index 4a1cc63f4..705ebb23d 100644 --- a/src/core/memory.h +++ b/src/core/memory.h @@ -8,7 +8,6 @@ #include #include #include "common/common_types.h" -#include "common/memory_hook.h" namespace Common { struct PageTable; @@ -77,17 +76,6 @@ public: */ void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr 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. * @@ -97,28 +85,6 @@ public: */ 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); - /** * Checks whether or not the supplied address is a valid virtual * address for the given process. diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt index d80b0b688..8a606b448 100644 --- a/src/tests/CMakeLists.txt +++ b/src/tests/CMakeLists.txt @@ -4,8 +4,6 @@ add_executable(tests common/fibers.cpp common/param_package.cpp common/ring_buffer.cpp - core/arm/arm_test_common.cpp - core/arm/arm_test_common.h core/core_timing.cpp tests.cpp ) diff --git a/src/tests/core/arm/arm_test_common.cpp b/src/tests/core/arm/arm_test_common.cpp deleted file mode 100644 index e54674d11..000000000 --- a/src/tests/core/arm/arm_test_common.cpp +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include - -#include "common/page_table.h" -#include "core/core.h" -#include "core/hle/kernel/memory/page_table.h" -#include "core/hle/kernel/process.h" -#include "core/memory.h" -#include "tests/core/arm/arm_test_common.h" - -namespace ArmTests { - -TestEnvironment::TestEnvironment(bool mutable_memory_) - : mutable_memory(mutable_memory_), - test_memory(std::make_shared(this)), kernel{Core::System::GetInstance()} { - auto& system = Core::System::GetInstance(); - - auto process = Kernel::Process::Create(system, "", Kernel::Process::ProcessType::Userland); - page_table = &process->PageTable().PageTableImpl(); - - system.Memory().MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory); - system.Memory().MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory); - - kernel.MakeCurrentProcess(process.get()); -} - -TestEnvironment::~TestEnvironment() { - auto& system = Core::System::GetInstance(); - system.Memory().UnmapRegion(*page_table, 0x80000000, 0x80000000); - system.Memory().UnmapRegion(*page_table, 0x00000000, 0x80000000); -} - -void TestEnvironment::SetMemory64(VAddr vaddr, u64 value) { - SetMemory32(vaddr + 0, static_cast(value)); - SetMemory32(vaddr + 4, static_cast(value >> 32)); -} - -void TestEnvironment::SetMemory32(VAddr vaddr, u32 value) { - SetMemory16(vaddr + 0, static_cast(value)); - SetMemory16(vaddr + 2, static_cast(value >> 16)); -} - -void TestEnvironment::SetMemory16(VAddr vaddr, u16 value) { - SetMemory8(vaddr + 0, static_cast(value)); - SetMemory8(vaddr + 1, static_cast(value >> 8)); -} - -void TestEnvironment::SetMemory8(VAddr vaddr, u8 value) { - test_memory->data[vaddr] = value; -} - -std::vector TestEnvironment::GetWriteRecords() const { - return write_records; -} - -void TestEnvironment::ClearWriteRecords() { - write_records.clear(); -} - -TestEnvironment::TestMemory::~TestMemory() {} - -std::optional TestEnvironment::TestMemory::IsValidAddress(VAddr addr) { - return true; -} - -std::optional TestEnvironment::TestMemory::Read8(VAddr addr) { - const auto iter = data.find(addr); - - if (iter == data.end()) { - // Some arbitrary data - return static_cast(addr); - } - - return iter->second; -} - -std::optional TestEnvironment::TestMemory::Read16(VAddr addr) { - return *Read8(addr) | static_cast(*Read8(addr + 1)) << 8; -} - -std::optional TestEnvironment::TestMemory::Read32(VAddr addr) { - return *Read16(addr) | static_cast(*Read16(addr + 2)) << 16; -} - -std::optional TestEnvironment::TestMemory::Read64(VAddr addr) { - return *Read32(addr) | static_cast(*Read32(addr + 4)) << 32; -} - -bool TestEnvironment::TestMemory::ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size) { - VAddr addr = src_addr; - u8* data = static_cast(dest_buffer); - - for (std::size_t i = 0; i < size; i++, addr++, data++) { - *data = *Read8(addr); - } - - return true; -} - -bool TestEnvironment::TestMemory::Write8(VAddr addr, u8 data) { - env->write_records.emplace_back(8, addr, data); - if (env->mutable_memory) - env->SetMemory8(addr, data); - return true; -} - -bool TestEnvironment::TestMemory::Write16(VAddr addr, u16 data) { - env->write_records.emplace_back(16, addr, data); - if (env->mutable_memory) - env->SetMemory16(addr, data); - return true; -} - -bool TestEnvironment::TestMemory::Write32(VAddr addr, u32 data) { - env->write_records.emplace_back(32, addr, data); - if (env->mutable_memory) - env->SetMemory32(addr, data); - return true; -} - -bool TestEnvironment::TestMemory::Write64(VAddr addr, u64 data) { - env->write_records.emplace_back(64, addr, data); - if (env->mutable_memory) - env->SetMemory64(addr, data); - return true; -} - -bool TestEnvironment::TestMemory::WriteBlock(VAddr dest_addr, const void* src_buffer, - std::size_t size) { - VAddr addr = dest_addr; - const u8* data = static_cast(src_buffer); - - for (std::size_t i = 0; i < size; i++, addr++, data++) { - env->write_records.emplace_back(8, addr, *data); - if (env->mutable_memory) - env->SetMemory8(addr, *data); - } - - return true; -} - -} // namespace ArmTests diff --git a/src/tests/core/arm/arm_test_common.h b/src/tests/core/arm/arm_test_common.h deleted file mode 100644 index d145dbfcc..000000000 --- a/src/tests/core/arm/arm_test_common.h +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2016 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include -#include -#include - -#include "common/common_types.h" -#include "common/memory_hook.h" -#include "core/hle/kernel/kernel.h" - -namespace Common { -struct PageTable; -} - -namespace ArmTests { - -struct WriteRecord { - WriteRecord(std::size_t size, VAddr addr, u64 data) : size(size), addr(addr), data(data) {} - std::size_t size; - VAddr addr; - u64 data; - bool operator==(const WriteRecord& o) const { - return std::tie(size, addr, data) == std::tie(o.size, o.addr, o.data); - } -}; - -class TestEnvironment final { -public: - /* - * Inititalise test environment - * @param mutable_memory If false, writes to memory can never be read back. - * (Memory is immutable.) - */ - explicit TestEnvironment(bool mutable_memory = false); - - /// Shutdown test environment - ~TestEnvironment(); - - /// Sets value at memory location vaddr. - void SetMemory8(VAddr vaddr, u8 value); - void SetMemory16(VAddr vaddr, u16 value); - void SetMemory32(VAddr vaddr, u32 value); - void SetMemory64(VAddr vaddr, u64 value); - - /** - * Whenever Memory::Write{8,16,32,64} is called within the test environment, - * a new write-record is made. - * @returns A vector of write records made since they were last cleared. - */ - std::vector GetWriteRecords() const; - - /// Empties the internal write-record store. - void ClearWriteRecords(); - -private: - friend struct TestMemory; - struct TestMemory final : Common::MemoryHook { - explicit TestMemory(TestEnvironment* env_) : env(env_) {} - TestEnvironment* env; - - ~TestMemory() override; - - std::optional IsValidAddress(VAddr addr) override; - - std::optional Read8(VAddr addr) override; - std::optional Read16(VAddr addr) override; - std::optional Read32(VAddr addr) override; - std::optional Read64(VAddr addr) override; - - bool ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size) override; - - bool Write8(VAddr addr, u8 data) override; - bool Write16(VAddr addr, u16 data) override; - bool Write32(VAddr addr, u32 data) override; - bool Write64(VAddr addr, u64 data) override; - - bool WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size) override; - - std::unordered_map data; - }; - - bool mutable_memory; - std::shared_ptr test_memory; - std::vector write_records; - Common::PageTable* page_table = nullptr; - Kernel::KernelCore kernel; -}; - -} // namespace ArmTests