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Merge pull request #1395 from lioncash/vm 

process/vm_manager: Initial modifications to load NPDM metadata
This commit is contained in:
bunnei 2018-09-29 10:54:39 -04:00 committed by GitHub
parent f7da74d18e 83377113bf
commit f7b69d61f2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 420 additions and 162 deletions
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5
src/core/arm/dynarmic/arm_dynarmic.cpp
View File

@ -129,7 +129,8 @@ public:
};
std::unique_ptr<Dynarmic::A64::Jit> ARM_Dynarmic::MakeJit() const {
auto** const page_table = Core::CurrentProcess()->vm_manager.page_table.pointers.data();
auto& current_process = Core::CurrentProcess();
auto** const page_table = current_process->vm_manager.page_table.pointers.data();
Dynarmic::A64::UserConfig config;
@ -138,7 +139,7 @@ std::unique_ptr<Dynarmic::A64::Jit> ARM_Dynarmic::MakeJit() const {
// Memory
config.page_table = reinterpret_cast<void**>(page_table);
config.page_table_address_space_bits = Memory::ADDRESS_SPACE_BITS;
config.page_table_address_space_bits = current_process->vm_manager.GetAddressSpaceWidth();
config.silently_mirror_page_table = false;
// Multi-process state

4
src/core/file_sys/program_metadata.cpp
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@ -83,10 +83,12 @@ void ProgramMetadata::Print() const {
auto address_space = "Unknown";
switch (npdm_header.address_space_type) {
case ProgramAddressSpaceType::Is64Bit:
case ProgramAddressSpaceType::Is36Bit:
case ProgramAddressSpaceType::Is39Bit:
address_space = "64-bit";
break;
case ProgramAddressSpaceType::Is32Bit:
case ProgramAddressSpaceType::Is32BitNoMap:
address_space = "32-bit";
break;
}

6
src/core/file_sys/program_metadata.h
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@ -17,8 +17,10 @@ enum class ResultStatus : u16;
namespace FileSys {
enum class ProgramAddressSpaceType : u8 {
Is64Bit = 1,
Is32Bit = 2,
Is32Bit = 0,
Is36Bit = 1,
Is32BitNoMap = 2,
Is39Bit = 3,
};
enum class ProgramFilePermission : u64 {

15
src/core/gdbstub/gdbstub.cpp
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@ -37,7 +37,9 @@
#include "core/core.h"
#include "core/core_cpu.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/loader.h"
#include "core/memory.h"
@ -585,7 +587,8 @@ static void HandleQuery() {
strlen("Xfer:features:read:target.xml:")) == 0) {
SendReply(target_xml);
} else if (strncmp(query, "Offsets", strlen("Offsets")) == 0) {
std::string buffer = fmt::format("TextSeg={:0x}", Memory::PROCESS_IMAGE_VADDR);
const VAddr base_address = Core::CurrentProcess()->vm_manager.GetCodeRegionBaseAddress();
std::string buffer = fmt::format("TextSeg={:0x}", base_address);
SendReply(buffer.c_str());
} else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {
std::string val = "m";
@ -893,11 +896,11 @@ static void ReadMemory() {
static u8 reply[GDB_BUFFER_SIZE - 4];
auto start_offset = command_buffer + 1;
auto addr_pos = std::find(start_offset, command_buffer + command_length, ',');
VAddr addr = HexToLong(start_offset, static_cast<u64>(addr_pos - start_offset));
const auto addr_pos = std::find(start_offset, command_buffer + command_length, ',');
const VAddr addr = HexToLong(start_offset, static_cast<u64>(addr_pos - start_offset));
start_offset = addr_pos + 1;
u64 len =
const u64 len =
HexToLong(start_offset, static_cast<u64>((command_buffer + command_length) - start_offset));
LOG_DEBUG(Debug_GDBStub, "gdb: addr: {:016X} len: {:016X}", addr, len);
@ -906,7 +909,9 @@ static void ReadMemory() {
SendReply("E01");
}
if (addr < Memory::PROCESS_IMAGE_VADDR || addr >= Memory::MAP_REGION_VADDR_END) {
const auto& vm_manager = Core::CurrentProcess()->vm_manager;
if (addr < vm_manager.GetCodeRegionBaseAddress() ||
addr >= vm_manager.GetMapRegionEndAddress()) {
return SendReply("E00");
}

28
src/core/hle/kernel/process.cpp
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@ -8,6 +8,7 @@
#include "common/common_funcs.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
@ -34,14 +35,21 @@ SharedPtr<Process> Process::Create(KernelCore& kernel, std::string&& name) {
process->name = std::move(name);
process->flags.raw = 0;
process->flags.memory_region.Assign(MemoryRegion::APPLICATION);
process->resource_limit = kernel.ResourceLimitForCategory(ResourceLimitCategory::APPLICATION);
process->status = ProcessStatus::Created;
process->program_id = 0;
process->process_id = kernel.CreateNewProcessID();
process->svc_access_mask.set();
kernel.AppendNewProcess(process);
return process;
}
void Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata) {
program_id = metadata.GetTitleID();
vm_manager.Reset(metadata.GetAddressSpaceType());
}
void Process::ParseKernelCaps(const u32* kernel_caps, std::size_t len) {
for (std::size_t i = 0; i < len; ++i) {
u32 descriptor = kernel_caps[i];
@ -119,7 +127,7 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
// TODO(bunnei): This is heap area that should be allocated by the kernel and not mapped as part
// of the user address space.
vm_manager
.MapMemoryBlock(Memory::STACK_AREA_VADDR_END - stack_size,
.MapMemoryBlock(vm_manager.GetTLSIORegionEndAddress() - stack_size,
std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size,
MemoryState::Mapped)
.Unwrap();
@ -185,6 +193,7 @@ static std::tuple<std::size_t, std::size_t, bool> FindFreeThreadLocalSlot(
VAddr Process::MarkNextAvailableTLSSlotAsUsed(Thread& thread) {
auto [available_page, available_slot, needs_allocation] = FindFreeThreadLocalSlot(tls_slots);
const VAddr tls_begin = vm_manager.GetTLSIORegionBaseAddress();
if (needs_allocation) {
tls_slots.emplace_back(0); // The page is completely available at the start
@ -197,18 +206,17 @@ VAddr Process::MarkNextAvailableTLSSlotAsUsed(Thread& thread) {
vm_manager.RefreshMemoryBlockMappings(tls_memory.get());
vm_manager.MapMemoryBlock(Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE,
tls_memory, 0, Memory::PAGE_SIZE, MemoryState::ThreadLocal);
vm_manager.MapMemoryBlock(tls_begin + available_page * Memory::PAGE_SIZE, tls_memory, 0,
Memory::PAGE_SIZE, MemoryState::ThreadLocal);
}
tls_slots[available_page].set(available_slot);
return Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE +
available_slot * Memory::TLS_ENTRY_SIZE;
return tls_begin + available_page * Memory::PAGE_SIZE + available_slot * Memory::TLS_ENTRY_SIZE;
}
void Process::FreeTLSSlot(VAddr tls_address) {
const VAddr tls_base = tls_address - Memory::TLS_AREA_VADDR;
const VAddr tls_base = tls_address - vm_manager.GetTLSIORegionBaseAddress();
const VAddr tls_page = tls_base / Memory::PAGE_SIZE;
const VAddr tls_slot = (tls_base % Memory::PAGE_SIZE) / Memory::TLS_ENTRY_SIZE;
@ -232,8 +240,8 @@ void Process::LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr) {
}
ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {
if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END ||
target + size < target) {
if (target < vm_manager.GetHeapRegionBaseAddress() ||
target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) {
return ERR_INVALID_ADDRESS;
}
@ -268,8 +276,8 @@ ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission per
}
ResultCode Process::HeapFree(VAddr target, u32 size) {
if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END ||
target + size < target) {
if (target < vm_manager.GetHeapRegionBaseAddress() ||
target + size > vm_manager.GetHeapRegionEndAddress() || target + size < target) {
return ERR_INVALID_ADDRESS;
}

12
src/core/hle/kernel/process.h
View File

@ -17,6 +17,10 @@
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/vm_manager.h"
namespace FileSys {
class ProgramMetadata;
}
namespace Kernel {
class KernelCore;
@ -141,6 +145,14 @@ public:
return process_id;
}
/**
* Loads process-specifics configuration info with metadata provided
* by an executable.
*
* @param metadata The provided metadata to load process specific info.
*/
void LoadFromMetadata(const FileSys::ProgramMetadata& metadata);
/// Title ID corresponding to the process
u64 program_id;

4
src/core/hle/kernel/shared_memory.cpp
View File

@ -8,6 +8,7 @@
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/memory.h"
@ -71,7 +72,8 @@ SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
shared_memory->other_permissions = other_permissions;
shared_memory->backing_block = std::move(heap_block);
shared_memory->backing_block_offset = offset;
shared_memory->base_address = Memory::HEAP_VADDR + offset;
shared_memory->base_address =
kernel.CurrentProcess()->vm_manager.GetHeapRegionBaseAddress() + offset;
return shared_memory;
}

45
src/core/hle/kernel/svc.cpp
View File

@ -51,8 +51,9 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
}
auto& process = *Core::CurrentProcess();
const VAddr heap_base = process.vm_manager.GetHeapRegionBaseAddress();
CASCADE_RESULT(*heap_addr,
process.HeapAllocate(Memory::HEAP_VADDR, heap_size, VMAPermission::ReadWrite));
process.HeapAllocate(heap_base, heap_size, VMAPermission::ReadWrite));
return RESULT_SUCCESS;
}
@ -325,26 +326,27 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
LOG_TRACE(Kernel_SVC, "called info_id=0x{:X}, info_sub_id=0x{:X}, handle=0x{:08X}", info_id,
info_sub_id, handle);
const auto& vm_manager = Core::CurrentProcess()->vm_manager;
const auto& current_process = Core::CurrentProcess();
const auto& vm_manager = current_process->vm_manager;
switch (static_cast<GetInfoType>(info_id)) {
case GetInfoType::AllowedCpuIdBitmask:
*result = Core::CurrentProcess()->allowed_processor_mask;
*result = current_process->allowed_processor_mask;
break;
case GetInfoType::AllowedThreadPrioBitmask:
*result = Core::CurrentProcess()->allowed_thread_priority_mask;
*result = current_process->allowed_thread_priority_mask;
break;
case GetInfoType::MapRegionBaseAddr:
*result = Memory::MAP_REGION_VADDR;
*result = vm_manager.GetMapRegionBaseAddress();
break;
case GetInfoType::MapRegionSize:
*result = Memory::MAP_REGION_SIZE;
*result = vm_manager.GetMapRegionSize();
break;
case GetInfoType::HeapRegionBaseAddr:
*result = Memory::HEAP_VADDR;
*result = vm_manager.GetHeapRegionBaseAddress();
break;
case GetInfoType::HeapRegionSize:
*result = Memory::HEAP_SIZE;
*result = vm_manager.GetHeapRegionSize();
break;
case GetInfoType::TotalMemoryUsage:
*result = vm_manager.GetTotalMemoryUsage();
@ -359,22 +361,35 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
*result = 0;
break;
case GetInfoType::AddressSpaceBaseAddr:
*result = vm_manager.GetAddressSpaceBaseAddr();
*result = vm_manager.GetCodeRegionBaseAddress();
break;
case GetInfoType::AddressSpaceSize:
*result = vm_manager.GetAddressSpaceSize();
case GetInfoType::AddressSpaceSize: {
const u64 width = vm_manager.GetAddressSpaceWidth();
switch (width) {
case 32:
*result = 0xFFE00000;
break;
case 36:
*result = 0xFF8000000;
break;
case 39:
*result = 0x7FF8000000;
break;
}
break;
}
case GetInfoType::NewMapRegionBaseAddr:
*result = Memory::NEW_MAP_REGION_VADDR;
*result = vm_manager.GetNewMapRegionBaseAddress();
break;
case GetInfoType::NewMapRegionSize:
*result = Memory::NEW_MAP_REGION_SIZE;
*result = vm_manager.GetNewMapRegionSize();
break;
case GetInfoType::IsVirtualAddressMemoryEnabled:
*result = Core::CurrentProcess()->is_virtual_address_memory_enabled;
*result = current_process->is_virtual_address_memory_enabled;
break;
case GetInfoType::TitleId:
*result = Core::CurrentProcess()->program_id;
*result = current_process->program_id;
break;
case GetInfoType::PrivilegedProcessId:
LOG_WARNING(Kernel_SVC,

3
src/core/hle/kernel/thread.cpp
View File

@ -262,8 +262,9 @@ SharedPtr<Thread> SetupMainThread(KernelCore& kernel, VAddr entry_point, u32 pri
SetCurrentPageTable(&owner_process.vm_manager.page_table);
// Initialize new "main" thread
const VAddr stack_top = owner_process.vm_manager.GetTLSIORegionEndAddress();
auto thread_res = Thread::Create(kernel, "main", entry_point, priority, 0, THREADPROCESSORID_0,
Memory::STACK_AREA_VADDR_END, &owner_process);
stack_top, &owner_process);
SharedPtr<Thread> thread = std::move(thread_res).Unwrap();

180
src/core/hle/kernel/vm_manager.cpp
View File

@ -9,6 +9,7 @@
#include "common/logging/log.h"
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
@ -54,30 +55,32 @@ bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
}
VMManager::VMManager() {
Reset();
// Default to assuming a 39-bit address space. This way we have a sane
// starting point with executables that don't provide metadata.
Reset(FileSys::ProgramAddressSpaceType::Is39Bit);
}
VMManager::~VMManager() {
Reset();
Reset(FileSys::ProgramAddressSpaceType::Is39Bit);
}
void VMManager::Reset() {
vma_map.clear();
void VMManager::Reset(FileSys::ProgramAddressSpaceType type) {
Clear();
InitializeMemoryRegionRanges(type);
page_table.Resize(address_space_width);
// Initialize the map with a single free region covering the entire managed space.
VirtualMemoryArea initial_vma;
initial_vma.size = MAX_ADDRESS;
initial_vma.size = address_space_end;
vma_map.emplace(initial_vma.base, initial_vma);
page_table.pointers.fill(nullptr);
page_table.special_regions.clear();
page_table.attributes.fill(Memory::PageType::Unmapped);
UpdatePageTableForVMA(initial_vma);
}
VMManager::VMAHandle VMManager::FindVMA(VAddr target) const {
if (target >= MAX_ADDRESS) {
if (target >= address_space_end) {
return vma_map.end();
} else {
return std::prev(vma_map.upper_bound(target));
@ -291,7 +294,7 @@ ResultVal<VMManager::VMAIter> VMManager::CarveVMARange(VAddr target, u64 size) {
const VAddr target_end = target + size;
ASSERT(target_end >= target);
ASSERT(target_end <= MAX_ADDRESS);
ASSERT(target_end <= address_space_end);
ASSERT(size > 0);
VMAIter begin_vma = StripIterConstness(FindVMA(target));
@ -382,6 +385,85 @@ void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
}
}
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:
address_space_width = 32;
code_region_base = 0x200000;
code_region_end = code_region_base + 0x3FE00000;
map_region_size = 0x40000000;
heap_region_size = 0x40000000;
break;
case FileSys::ProgramAddressSpaceType::Is36Bit:
address_space_width = 36;
code_region_base = 0x8000000;
code_region_end = code_region_base + 0x78000000;
map_region_size = 0x180000000;
heap_region_size = 0x180000000;
break;
case FileSys::ProgramAddressSpaceType::Is32BitNoMap:
address_space_width = 32;
code_region_base = 0x200000;
code_region_end = code_region_base + 0x3FE00000;
map_region_size = 0;
heap_region_size = 0x80000000;
break;
case FileSys::ProgramAddressSpaceType::Is39Bit:
address_space_width = 39;
code_region_base = 0x8000000;
code_region_end = code_region_base + 0x80000000;
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;
@ -392,14 +474,80 @@ u64 VMManager::GetTotalHeapUsage() const {
return 0x0;
}
VAddr VMManager::GetAddressSpaceBaseAddr() const {
LOG_WARNING(Kernel, "(STUBBED) called");
return 0x8000000;
VAddr VMManager::GetAddressSpaceBaseAddress() const {
return address_space_base;
}
VAddr VMManager::GetAddressSpaceEndAddress() const {
return address_space_end;
}
u64 VMManager::GetAddressSpaceSize() const {
LOG_WARNING(Kernel, "(STUBBED) called");
return MAX_ADDRESS;
return address_space_end - address_space_base;
}
u64 VMManager::GetAddressSpaceWidth() const {
return address_space_width;
}
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

100
src/core/hle/kernel/vm_manager.h
View File

@ -12,6 +12,10 @@
#include "core/memory.h"
#include "core/memory_hook.h"
namespace FileSys {
enum class ProgramAddressSpaceType : u8;
}
namespace Kernel {
enum class VMAType : u8 {
@ -110,12 +114,6 @@ struct VirtualMemoryArea {
*/
class VMManager final {
public:
/**
* The maximum amount of address space managed by the kernel.
* @todo This was selected arbitrarily, and should be verified for Switch OS.
*/
static constexpr VAddr MAX_ADDRESS{0x1000000000ULL};
/**
* A map covering the entirety of the managed address space, keyed by the `base` field of each
* VMA. It must always be modified by splitting or merging VMAs, so that the invariant
@ -130,7 +128,7 @@ public:
~VMManager();
/// Clears the address space map, re-initializing with a single free area.
void Reset();
void Reset(FileSys::ProgramAddressSpaceType type);
/// Finds the VMA in which the given address is included in, or `vma_map.end()`.
VMAHandle FindVMA(VAddr target) const;
@ -195,12 +193,63 @@ public:
/// Gets the total heap usage, used by svcGetInfo
u64 GetTotalHeapUsage() const;
/// Gets the total address space base address, used by svcGetInfo
VAddr GetAddressSpaceBaseAddr() const;
/// Gets the address space base address
VAddr GetAddressSpaceBaseAddress() const;
/// Gets the total address space address size, used by svcGetInfo
/// Gets the address space end address
VAddr GetAddressSpaceEndAddress() const;
/// Gets the total address space address size in bytes
u64 GetAddressSpaceSize() const;
/// Gets the address space width in bits.
u64 GetAddressSpaceWidth() const;
/// Gets the base address of the code region.
VAddr GetCodeRegionBaseAddress() const;
/// Gets the end address of the code region.
VAddr GetCodeRegionEndAddress() const;
/// Gets the total size of the code region in bytes.
u64 GetCodeRegionSize() const;
/// Gets the base address of the heap region.
VAddr GetHeapRegionBaseAddress() const;
/// Gets the end address of the heap region;
VAddr GetHeapRegionEndAddress() const;
/// Gets the total size of the heap region in bytes.
u64 GetHeapRegionSize() const;
/// Gets the base address of the map region.
VAddr GetMapRegionBaseAddress() const;
/// Gets the end address of the map region.
VAddr GetMapRegionEndAddress() const;
/// Gets the total size of the map region in bytes.
u64 GetMapRegionSize() const;
/// Gets the base address of the new map region.
VAddr GetNewMapRegionBaseAddress() const;
/// Gets the end address of the new map region.
VAddr GetNewMapRegionEndAddress() const;
/// Gets the total size of the new map region in bytes.
u64 GetNewMapRegionSize() const;
/// Gets the base address of the TLS IO region.
VAddr GetTLSIORegionBaseAddress() const;
/// Gets the end address of the TLS IO region.
VAddr GetTLSIORegionEndAddress() const;
/// Gets the total size of the TLS IO region in bytes.
u64 GetTLSIORegionSize() const;
/// Each VMManager has its own page table, which is set as the main one when the owning process
/// is scheduled.
Memory::PageTable page_table;
@ -240,5 +289,36 @@ private:
/// Updates the pages corresponding to this VMA so they match the VMA's attributes.
void UpdatePageTableForVMA(const VirtualMemoryArea& vma);
/// Initializes memory region ranges to adhere to a given address space type.
void InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType type);
/// Clears the underlying map and page table.
void Clear();
/// Clears out the VMA map, unmapping any previously mapped ranges.
void ClearVMAMap();
/// Clears out the page table
void ClearPageTable();
u32 address_space_width = 0;
VAddr address_space_base = 0;
VAddr address_space_end = 0;
VAddr code_region_base = 0;
VAddr code_region_end = 0;
VAddr heap_region_base = 0;
VAddr heap_region_end = 0;
VAddr map_region_base = 0;
VAddr map_region_end = 0;
VAddr new_map_region_base = 0;
VAddr new_map_region_end = 0;
VAddr tls_io_region_base = 0;
VAddr tls_io_region_end = 0;
};
} // namespace Kernel

18
src/core/loader/deconstructed_rom_directory.cpp
View File

@ -14,11 +14,9 @@
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nso.h"
#include "core/memory.h"
namespace Loader {
@ -127,12 +125,16 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
metadata.Print();
const FileSys::ProgramAddressSpaceType arch_bits{metadata.GetAddressSpaceType()};
if (arch_bits == FileSys::ProgramAddressSpaceType::Is32Bit) {
if (arch_bits == FileSys::ProgramAddressSpaceType::Is32Bit ||
arch_bits == FileSys::ProgramAddressSpaceType::Is32BitNoMap) {
return ResultStatus::Error32BitISA;
}
process->LoadFromMetadata(metadata);
// Load NSO modules
VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR};
const VAddr base_address = process->vm_manager.GetCodeRegionBaseAddress();
VAddr next_load_addr = base_address;
for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
"subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
const FileSys::VirtualFile module_file = dir->GetFile(module);
@ -145,13 +147,7 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
}
}
auto& kernel = Core::System::GetInstance().Kernel();
process->program_id = metadata.GetTitleID();
process->svc_access_mask.set();
process->resource_limit =
kernel.ResourceLimitForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(Memory::PROCESS_IMAGE_VADDR, metadata.GetMainThreadPriority(),
metadata.GetMainThreadStackSize());
process->Run(base_address, metadata.GetMainThreadPriority(), metadata.GetMainThreadStackSize());
// Find the RomFS by searching for a ".romfs" file in this directory
const auto& files = dir->GetFiles();

32
src/core/loader/elf.cpp
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@ -12,7 +12,7 @@
#include "core/core.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/elf.h"
#include "core/memory.h"
@ -189,7 +189,7 @@ private:
u32* sectionAddrs;
bool relocate;
u32 entryPoint;
VAddr entryPoint;
public:
explicit ElfReader(void* ptr);
@ -205,13 +205,13 @@ public:
ElfMachine GetMachine() const {
return (ElfMachine)(header->e_machine);
}
u32 GetEntryPoint() const {
VAddr GetEntryPoint() const {
return entryPoint;
}
u32 GetFlags() const {
return (u32)(header->e_flags);
}
SharedPtr<CodeSet> LoadInto(u32 vaddr);
SharedPtr<CodeSet> LoadInto(VAddr vaddr);
int GetNumSegments() const {
return (int)(header->e_phnum);
@ -274,7 +274,7 @@ const char* ElfReader::GetSectionName(int section) const {
return nullptr;
}
SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
SharedPtr<CodeSet> ElfReader::LoadInto(VAddr vaddr) {
LOG_DEBUG(Loader, "String section: {}", header->e_shstrndx);
// Should we relocate?
@ -289,11 +289,11 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
LOG_DEBUG(Loader, "{} segments:", header->e_phnum);
// First pass : Get the bits into RAM
u32 base_addr = relocate ? vaddr : 0;
const VAddr base_addr = relocate ? vaddr : 0;
u32 total_image_size = 0;
u64 total_image_size = 0;
for (unsigned int i = 0; i < header->e_phnum; ++i) {
Elf32_Phdr* p = &segments[i];
const Elf32_Phdr* p = &segments[i];
if (p->p_type == PT_LOAD) {
total_image_size += (p->p_memsz + 0xFFF) & ~0xFFF;
}
@ -306,7 +306,7 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
SharedPtr<CodeSet> codeset = CodeSet::Create(kernel, "");
for (unsigned int i = 0; i < header->e_phnum; ++i) {
Elf32_Phdr* p = &segments[i];
const Elf32_Phdr* p = &segments[i];
LOG_DEBUG(Loader, "Type: {} Vaddr: {:08X} Filesz: {:08X} Memsz: {:08X} ", p->p_type,
p->p_vaddr, p->p_filesz, p->p_memsz);
@ -333,8 +333,8 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
continue;
}
u32 segment_addr = base_addr + p->p_vaddr;
u32 aligned_size = (p->p_memsz + 0xFFF) & ~0xFFF;
const VAddr segment_addr = base_addr + p->p_vaddr;
const u32 aligned_size = (p->p_memsz + 0xFFF) & ~0xFFF;
codeset_segment->offset = current_image_position;
codeset_segment->addr = segment_addr;
@ -395,18 +395,12 @@ ResultStatus AppLoader_ELF::Load(Kernel::SharedPtr<Kernel::Process>& process) {
if (buffer.size() != file->GetSize())
return ResultStatus::ErrorIncorrectELFFileSize;
const VAddr base_address = process->vm_manager.GetCodeRegionBaseAddress();
ElfReader elf_reader(&buffer[0]);
SharedPtr<CodeSet> codeset = elf_reader.LoadInto(Memory::PROCESS_IMAGE_VADDR);
SharedPtr<CodeSet> codeset = elf_reader.LoadInto(base_address);
codeset->name = file->GetName();
process->LoadModule(codeset, codeset->entrypoint);
process->svc_access_mask.set();
// Attach the default resource limit (APPLICATION) to the process
auto& kernel = Core::System::GetInstance().Kernel();
process->resource_limit =
kernel.ResourceLimitForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(codeset->entrypoint, 48, Memory::DEFAULT_STACK_SIZE);
is_loaded = true;

12
src/core/loader/nro.cpp
View File

@ -16,7 +16,7 @@
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nro.h"
#include "core/memory.h"
@ -181,17 +181,13 @@ ResultStatus AppLoader_NRO::Load(Kernel::SharedPtr<Kernel::Process>& process) {
}
// Load NRO
static constexpr VAddr base_addr{Memory::PROCESS_IMAGE_VADDR};
const VAddr base_address = process->vm_manager.GetCodeRegionBaseAddress();
if (!LoadNro(file, base_addr)) {
if (!LoadNro(file, base_address)) {
return ResultStatus::ErrorLoadingNRO;
}
auto& kernel = Core::System::GetInstance().Kernel();
process->svc_access_mask.set();
process->resource_limit =
kernel.ResourceLimitForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(base_addr, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);
process->Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;

14
src/core/loader/nso.cpp
View File

@ -13,7 +13,7 @@
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nso.h"
#include "core/memory.h"
@ -159,15 +159,11 @@ ResultStatus AppLoader_NSO::Load(Kernel::SharedPtr<Kernel::Process>& process) {
}
// Load module
LoadModule(file, Memory::PROCESS_IMAGE_VADDR);
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), Memory::PROCESS_IMAGE_VADDR);
const VAddr base_address = process->vm_manager.GetCodeRegionBaseAddress();
LoadModule(file, base_address);
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), base_address);
auto& kernel = Core::System::GetInstance().Kernel();
process->svc_access_mask.set();
process->resource_limit =
kernel.ResourceLimitForCategory(Kernel::ResourceLimitCategory::APPLICATION);
process->Run(Memory::PROCESS_IMAGE_VADDR, Kernel::THREADPRIO_DEFAULT,
Memory::DEFAULT_STACK_SIZE);
process->Run(base_address, Kernel::THREADPRIO_DEFAULT, Memory::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;

30
src/core/memory.cpp
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@ -3,7 +3,6 @@
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <cstring>
#include <utility>
@ -15,11 +14,11 @@
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/hle/lock.h"
#include "core/memory.h"
#include "core/memory_setup.h"
#include "video_core/renderer_base.h"
#include "video_core/video_core.h"
namespace Memory {
@ -41,6 +40,21 @@ PageTable* GetCurrentPageTable() {
return current_page_table;
}
PageTable::PageTable() = default;
PageTable::PageTable(std::size_t address_space_width_in_bits) {
Resize(address_space_width_in_bits);
}
PageTable::~PageTable() = default;
void PageTable::Resize(std::size_t address_space_width_in_bits) {
const std::size_t num_page_table_entries = 1ULL << (address_space_width_in_bits - PAGE_BITS);
pointers.resize(num_page_table_entries);
attributes.resize(num_page_table_entries);
}
static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, PageType type) {
LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
@ -50,7 +64,7 @@ static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, Pa
VAddr end = base + size;
while (base != end) {
ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at {:016X}", base);
ASSERT_MSG(base < page_table.pointers.size(), "out of range mapping at {:016X}", base);
page_table.attributes[base] = type;
page_table.pointers[base] = memory;
@ -323,7 +337,7 @@ void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) {
return;
}
VAddr end = start + size;
const VAddr end = start + size;
const auto CheckRegion = [&](VAddr region_start, VAddr region_end) {
if (start >= region_end || end <= region_start) {
@ -333,7 +347,7 @@ void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) {
const VAddr overlap_start = std::max(start, region_start);
const VAddr overlap_end = std::min(end, region_end);
const u64 overlap_size = overlap_end - overlap_start;
const VAddr overlap_size = overlap_end - overlap_start;
auto& rasterizer = system_instance.Renderer().Rasterizer();
switch (mode) {
@ -349,8 +363,10 @@ void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) {
}
};
CheckRegion(PROCESS_IMAGE_VADDR, PROCESS_IMAGE_VADDR_END);
CheckRegion(HEAP_VADDR, HEAP_VADDR_END);
const auto& vm_manager = Core::CurrentProcess()->vm_manager;
CheckRegion(vm_manager.GetCodeRegionBaseAddress(), vm_manager.GetCodeRegionEndAddress());
CheckRegion(vm_manager.GetHeapRegionBaseAddress(), vm_manager.GetHeapRegionEndAddress());
}
u8 Read8(const VAddr addr) {

67
src/core/memory.h
View File

@ -4,10 +4,10 @@
#pragma once
#include <array>
#include <cstddef>
#include <string>
#include <tuple>
#include <vector>
#include <boost/icl/interval_map.hpp>
#include "common/common_types.h"
#include "core/memory_hook.h"
@ -23,10 +23,8 @@ namespace Memory {
* be mapped.
*/
constexpr std::size_t PAGE_BITS = 12;
constexpr u64 PAGE_SIZE = 1 << PAGE_BITS;
constexpr u64 PAGE_SIZE = 1ULL << PAGE_BITS;
constexpr u64 PAGE_MASK = PAGE_SIZE - 1;
constexpr std::size_t ADDRESS_SPACE_BITS = 36;
constexpr std::size_t PAGE_TABLE_NUM_ENTRIES = 1ULL << (ADDRESS_SPACE_BITS - PAGE_BITS);
enum class PageType : u8 {
/// Page is unmapped and should cause an access error.
@ -62,32 +60,39 @@ struct SpecialRegion {
* mimics the way a real CPU page table works.
*/
struct PageTable {
/**
* Array of memory pointers backing each page. An entry can only be non-null if the
* corresponding entry in the `attributes` array is of type `Memory`.
*/
std::array<u8*, PAGE_TABLE_NUM_ENTRIES> pointers;
explicit PageTable();
explicit PageTable(std::size_t address_space_width_in_bits);
~PageTable();
/**
* Contains MMIO handlers that back memory regions whose entries in the `attribute` array is of
* type `Special`.
* Resizes the page table to be able to accomodate enough pages within
* a given address space.
*
* @param address_space_width_in_bits The address size width in bits.
*/
void Resize(std::size_t address_space_width_in_bits);
/**
* Vector of memory pointers backing each page. An entry can only be non-null if the
* corresponding entry in the `attributes` vector is of type `Memory`.
*/
std::vector<u8*> pointers;
/**
* Contains MMIO handlers that back memory regions whose entries in the `attribute` vector is
* of type `Special`.
*/
boost::icl::interval_map<VAddr, std::set<SpecialRegion>> special_regions;
/**
* Array of fine grained page attributes. If it is set to any value other than `Memory`, then
* Vector of fine grained page attributes. If it is set to any value other than `Memory`, then
* the corresponding entry in `pointers` MUST be set to null.
*/
std::array<PageType, PAGE_TABLE_NUM_ENTRIES> attributes;
std::vector<PageType> attributes;
};
/// Virtual user-space memory regions
enum : VAddr {
/// Where the application text, data and bss reside.
PROCESS_IMAGE_VADDR = 0x08000000,
PROCESS_IMAGE_MAX_SIZE = 0x08000000,
PROCESS_IMAGE_VADDR_END = PROCESS_IMAGE_VADDR + PROCESS_IMAGE_MAX_SIZE,
/// Read-only page containing kernel and system configuration values.
CONFIG_MEMORY_VADDR = 0x1FF80000,
CONFIG_MEMORY_SIZE = 0x00001000,
@ -98,36 +103,12 @@ enum : VAddr {
SHARED_PAGE_SIZE = 0x00001000,
SHARED_PAGE_VADDR_END = SHARED_PAGE_VADDR + SHARED_PAGE_SIZE,
/// Area where TLS (Thread-Local Storage) buffers are allocated.
TLS_AREA_VADDR = 0x40000000,
/// TLS (Thread-Local Storage) related.
TLS_ENTRY_SIZE = 0x200,
TLS_AREA_SIZE = 0x10000000,
TLS_AREA_VADDR_END = TLS_AREA_VADDR + TLS_AREA_SIZE,
/// Application stack
STACK_AREA_VADDR = TLS_AREA_VADDR_END,
STACK_AREA_SIZE = 0x10000000,
STACK_AREA_VADDR_END = STACK_AREA_VADDR + STACK_AREA_SIZE,
DEFAULT_STACK_SIZE = 0x100000,
/// Application heap
/// Size is confirmed to be a static value on fw 3.0.0
HEAP_VADDR = 0x108000000,
HEAP_SIZE = 0x180000000,
HEAP_VADDR_END = HEAP_VADDR + HEAP_SIZE,
/// New map region
/// Size is confirmed to be a static value on fw 3.0.0
NEW_MAP_REGION_VADDR = HEAP_VADDR_END,
NEW_MAP_REGION_SIZE = 0x80000000,
NEW_MAP_REGION_VADDR_END = NEW_MAP_REGION_VADDR + NEW_MAP_REGION_SIZE,
/// Map region
/// Size is confirmed to be a static value on fw 3.0.0
MAP_REGION_VADDR = NEW_MAP_REGION_VADDR_END,
MAP_REGION_SIZE = 0x1000000000,
MAP_REGION_VADDR_END = MAP_REGION_VADDR + MAP_REGION_SIZE,
/// Kernel Virtual Address Range
KERNEL_REGION_VADDR = 0xFFFFFF8000000000,
KERNEL_REGION_SIZE = 0x7FFFE00000,

7
src/tests/core/arm/arm_test_common.cpp
View File

@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "core/memory.h"
@ -16,9 +18,10 @@ TestEnvironment::TestEnvironment(bool mutable_memory_)
Core::CurrentProcess() = Kernel::Process::Create(kernel, "");
page_table = &Core::CurrentProcess()->vm_manager.page_table;
page_table->pointers.fill(nullptr);
std::fill(page_table->pointers.begin(), page_table->pointers.end(), nullptr);
page_table->special_regions.clear();
page_table->attributes.fill(Memory::PageType::Unmapped);
std::fill(page_table->attributes.begin(), page_table->attributes.end(),
Memory::PageType::Unmapped);
Memory::MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
Memory::MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);