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kernel: add KPageTableBase

Browse source 
Co-authored-by: Kelebek1 <eeeedddccc@hotmail.co.uk>
This commit is contained in:
Liam 2023-10-22 21:16:38 -04:00
parent 2f9487cd38
commit 2a255b2d61
31 changed files with 7202 additions and 4877 deletions
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30
src/common/page_table.cpp
View file

@ -9,12 +9,12 @@ PageTable::PageTable() = default;
PageTable::~PageTable() noexcept = default;
bool PageTable::BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_context,
u64 address) const {
bool PageTable::BeginTraversal(TraversalEntry* out_entry, TraversalContext* out_context,
Common::ProcessAddress address) const {
// Setup invalid defaults.
out_entry.phys_addr = 0;
out_entry.block_size = page_size;
out_context.next_page = 0;
out_entry->phys_addr = 0;
out_entry->block_size = page_size;
out_context->next_page = 0;
// Validate that we can read the actual entry.
const auto page = address / page_size;
@ -29,20 +29,20 @@ bool PageTable::BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_
}
// Populate the results.
out_entry.phys_addr = phys_addr + address;
out_context.next_page = page + 1;
out_context.next_offset = address + page_size;
out_entry->phys_addr = phys_addr + GetInteger(address);
out_context->next_page = page + 1;
out_context->next_offset = GetInteger(address) + page_size;
return true;
}
bool PageTable::ContinueTraversal(TraversalEntry& out_entry, TraversalContext& context) const {
bool PageTable::ContinueTraversal(TraversalEntry* out_entry, TraversalContext* context) const {
// Setup invalid defaults.
out_entry.phys_addr = 0;
out_entry.block_size = page_size;
out_entry->phys_addr = 0;
out_entry->block_size = page_size;
// Validate that we can read the actual entry.
const auto page = context.next_page;
const auto page = context->next_page;
if (page >= backing_addr.size()) {
return false;
}
@ -54,9 +54,9 @@ bool PageTable::ContinueTraversal(TraversalEntry& out_entry, TraversalContext& c
}
// Populate the results.
out_entry.phys_addr = phys_addr + context.next_offset;
context.next_page = page + 1;
context.next_offset += page_size;
out_entry->phys_addr = phys_addr + context->next_offset;
context->next_page = page + 1;
context->next_offset += page_size;
return true;
}

17
src/common/page_table.h
View file

@ -6,6 +6,7 @@
#include <atomic>
#include "common/common_types.h"
#include "common/typed_address.h"
#include "common/virtual_buffer.h"
namespace Common {
@ -100,9 +101,9 @@ struct PageTable {
PageTable(PageTable&&) noexcept = default;
PageTable& operator=(PageTable&&) noexcept = default;
bool BeginTraversal(TraversalEntry& out_entry, TraversalContext& out_context,
u64 address) const;
bool ContinueTraversal(TraversalEntry& out_entry, TraversalContext& context) const;
bool BeginTraversal(TraversalEntry* out_entry, TraversalContext* out_context,
Common::ProcessAddress address) const;
bool ContinueTraversal(TraversalEntry* out_entry, TraversalContext* context) const;
/**
* Resizes the page table to be able to accommodate enough pages within
@ -117,6 +118,16 @@ struct PageTable {
return current_address_space_width_in_bits;
}
bool GetPhysicalAddress(Common::PhysicalAddress* out_phys_addr,
Common::ProcessAddress virt_addr) const {
if (virt_addr > (1ULL << this->GetAddressSpaceBits())) {
return false;
}
*out_phys_addr = backing_addr[virt_addr / page_size] + GetInteger(virt_addr);
return true;
}
/**
* Vector of memory pointers backing each page. An entry can only be non-null if the
* corresponding attribute element is of type `Memory`.

6
src/core/CMakeLists.txt
View file

@ -271,8 +271,9 @@ add_library(core STATIC
hle/kernel/k_page_heap.h
hle/kernel/k_page_group.cpp
hle/kernel/k_page_group.h
hle/kernel/k_page_table.cpp
hle/kernel/k_page_table.h
hle/kernel/k_page_table_base.cpp
hle/kernel/k_page_table_base.h
hle/kernel/k_page_table_manager.h
hle/kernel/k_page_table_slab_heap.h
hle/kernel/k_port.cpp
@ -280,6 +281,7 @@ add_library(core STATIC
hle/kernel/k_priority_queue.h
hle/kernel/k_process.cpp
hle/kernel/k_process.h
hle/kernel/k_process_page_table.h
hle/kernel/k_readable_event.cpp
hle/kernel/k_readable_event.h
hle/kernel/k_resource_limit.cpp
@ -330,8 +332,6 @@ add_library(core STATIC
hle/kernel/physical_core.cpp
hle/kernel/physical_core.h
hle/kernel/physical_memory.h
hle/kernel/process_capability.cpp
hle/kernel/process_capability.h
hle/kernel/slab_helpers.h
hle/kernel/svc.cpp
hle/kernel/svc.h

98
src/core/debugger/gdbstub.cpp
View file

@ -727,29 +727,34 @@ static constexpr const char* GetMemoryPermissionString(const Kernel::Svc::Memory
}
}
static VAddr GetModuleEnd(Kernel::KPageTable& page_table, VAddr base) {
Kernel::Svc::MemoryInfo mem_info;
static VAddr GetModuleEnd(Kernel::KProcessPageTable& page_table, VAddr base) {
Kernel::KMemoryInfo mem_info;
Kernel::Svc::MemoryInfo svc_mem_info;
Kernel::Svc::PageInfo page_info;
VAddr cur_addr{base};
// Expect: r-x Code (.text)
mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
cur_addr = mem_info.base_address + mem_info.size;
if (mem_info.state != Kernel::Svc::MemoryState::Code ||
mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
svc_mem_info = mem_info.GetSvcMemoryInfo();
cur_addr = svc_mem_info.base_address + svc_mem_info.size;
if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
svc_mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
return cur_addr - 1;
}
// Expect: r-- Code (.rodata)
mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
cur_addr = mem_info.base_address + mem_info.size;
if (mem_info.state != Kernel::Svc::MemoryState::Code ||
mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
svc_mem_info = mem_info.GetSvcMemoryInfo();
cur_addr = svc_mem_info.base_address + svc_mem_info.size;
if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
svc_mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
return cur_addr - 1;
}
// Expect: rw- CodeData (.data)
mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
cur_addr = mem_info.base_address + mem_info.size;
R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
svc_mem_info = mem_info.GetSvcMemoryInfo();
cur_addr = svc_mem_info.base_address + svc_mem_info.size;
return cur_addr - 1;
}
@ -767,7 +772,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
if (command_str == "get fastmem") {
if (Settings::IsFastmemEnabled()) {
const auto& impl = page_table.PageTableImpl();
const auto& impl = page_table.GetImpl();
const auto region = reinterpret_cast<uintptr_t>(impl.fastmem_arena);
const auto region_bits = impl.current_address_space_width_in_bits;
const auto region_size = 1ULL << region_bits;
@ -785,20 +790,22 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
reply = fmt::format("Process: {:#x} ({})\n"
"Program Id: {:#018x}\n",
process->GetProcessId(), process->GetName(), process->GetProgramId());
reply += fmt::format("Layout:\n"
" Alias: {:#012x} - {:#012x}\n"
" Heap: {:#012x} - {:#012x}\n"
" Aslr: {:#012x} - {:#012x}\n"
" Stack: {:#012x} - {:#012x}\n"
"Modules:\n",
GetInteger(page_table.GetAliasRegionStart()),
GetInteger(page_table.GetAliasRegionEnd()),
GetInteger(page_table.GetHeapRegionStart()),
GetInteger(page_table.GetHeapRegionEnd()),
GetInteger(page_table.GetAliasCodeRegionStart()),
GetInteger(page_table.GetAliasCodeRegionEnd()),
GetInteger(page_table.GetStackRegionStart()),
GetInteger(page_table.GetStackRegionEnd()));
reply += fmt::format(
"Layout:\n"
" Alias: {:#012x} - {:#012x}\n"
" Heap: {:#012x} - {:#012x}\n"
" Aslr: {:#012x} - {:#012x}\n"
" Stack: {:#012x} - {:#012x}\n"
"Modules:\n",
GetInteger(page_table.GetAliasRegionStart()),
GetInteger(page_table.GetAliasRegionStart()) + page_table.GetAliasRegionSize() - 1,
GetInteger(page_table.GetHeapRegionStart()),
GetInteger(page_table.GetHeapRegionStart()) + page_table.GetHeapRegionSize() - 1,
GetInteger(page_table.GetAliasCodeRegionStart()),
GetInteger(page_table.GetAliasCodeRegionStart()) + page_table.GetAliasCodeRegionSize() -
1,
GetInteger(page_table.GetStackRegionStart()),
GetInteger(page_table.GetStackRegionStart()) + page_table.GetStackRegionSize() - 1);
for (const auto& [vaddr, name] : modules) {
reply += fmt::format(" {:#012x} - {:#012x} {}\n", vaddr,
@ -811,27 +818,34 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
while (true) {
using MemoryAttribute = Kernel::Svc::MemoryAttribute;
auto mem_info = page_table.QueryInfo(cur_addr).GetSvcMemoryInfo();
Kernel::KMemoryInfo mem_info{};
Kernel::Svc::PageInfo page_info{};
R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info),
cur_addr));
auto svc_mem_info = mem_info.GetSvcMemoryInfo();
if (mem_info.state != Kernel::Svc::MemoryState::Inaccessible ||
mem_info.base_address + mem_info.size - 1 != std::numeric_limits<u64>::max()) {
const char* state = GetMemoryStateName(mem_info.state);
const char* perm = GetMemoryPermissionString(mem_info);
if (svc_mem_info.state != Kernel::Svc::MemoryState::Inaccessible ||
svc_mem_info.base_address + svc_mem_info.size - 1 !=
std::numeric_limits<u64>::max()) {
const char* state = GetMemoryStateName(svc_mem_info.state);
const char* perm = GetMemoryPermissionString(svc_mem_info);
const char l = True(mem_info.attribute & MemoryAttribute::Locked) ? 'L' : '-';
const char i = True(mem_info.attribute & MemoryAttribute::IpcLocked) ? 'I' : '-';
const char d = True(mem_info.attribute & MemoryAttribute::DeviceShared) ? 'D' : '-';
const char u = True(mem_info.attribute & MemoryAttribute::Uncached) ? 'U' : '-';
const char l = True(svc_mem_info.attribute & MemoryAttribute::Locked) ? 'L' : '-';
const char i =
True(svc_mem_info.attribute & MemoryAttribute::IpcLocked) ? 'I' : '-';
const char d =
True(svc_mem_info.attribute & MemoryAttribute::DeviceShared) ? 'D' : '-';
const char u = True(svc_mem_info.attribute & MemoryAttribute::Uncached) ? 'U' : '-';
const char p =
True(mem_info.attribute & MemoryAttribute::PermissionLocked) ? 'P' : '-';
True(svc_mem_info.attribute & MemoryAttribute::PermissionLocked) ? 'P' : '-';
reply += fmt::format(" {:#012x} - {:#012x} {} {} {}{}{}{}{} [{}, {}]\n",
mem_info.base_address,
mem_info.base_address + mem_info.size - 1, perm, state, l, i,
d, u, p, mem_info.ipc_count, mem_info.device_count);
reply += fmt::format(
" {:#012x} - {:#012x} {} {} {}{}{}{}{} [{}, {}]\n", svc_mem_info.base_address,
svc_mem_info.base_address + svc_mem_info.size - 1, perm, state, l, i, d, u, p,
svc_mem_info.ipc_count, svc_mem_info.device_count);
}
const uintptr_t next_address = mem_info.base_address + mem_info.size;
const uintptr_t next_address = svc_mem_info.base_address + svc_mem_info.size;
if (next_address <= cur_addr) {
break;
}

13
src/core/hle/kernel/board/nintendo/nx/k_system_control.cpp
View file

@ -222,7 +222,7 @@ Result KSystemControl::AllocateSecureMemory(KernelCore& kernel, KVirtualAddress*
};
// We succeeded.
*out = KPageTable::GetHeapVirtualAddress(kernel.MemoryLayout(), paddr);
*out = KPageTable::GetHeapVirtualAddress(kernel, paddr);
R_SUCCEED();
}
@ -238,8 +238,17 @@ void KSystemControl::FreeSecureMemory(KernelCore& kernel, KVirtualAddress addres
ASSERT(Common::IsAligned(size, alignment));
// Close the secure region's pages.
kernel.MemoryManager().Close(KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), address),
kernel.MemoryManager().Close(KPageTable::GetHeapPhysicalAddress(kernel, address),
size / PageSize);
}
// Insecure Memory.
KResourceLimit* KSystemControl::GetInsecureMemoryResourceLimit(KernelCore& kernel) {
return kernel.GetSystemResourceLimit();
}
u32 KSystemControl::GetInsecureMemoryPool() {
return static_cast<u32>(KMemoryManager::Pool::SystemNonSecure);
}
} // namespace Kernel::Board::Nintendo::Nx

7
src/core/hle/kernel/board/nintendo/nx/k_system_control.h
View file

@ -8,7 +8,8 @@
namespace Kernel {
class KernelCore;
}
class KResourceLimit;
} // namespace Kernel
namespace Kernel::Board::Nintendo::Nx {
@ -40,6 +41,10 @@ public:
u32 pool);
static void FreeSecureMemory(KernelCore& kernel, KVirtualAddress address, size_t size,
u32 pool);
// Insecure Memory.
static KResourceLimit* GetInsecureMemoryResourceLimit(KernelCore& kernel);
static u32 GetInsecureMemoryPool();
};
} // namespace Kernel::Board::Nintendo::Nx

36
src/core/hle/kernel/k_capabilities.cpp
View file

@ -4,14 +4,15 @@
#include "core/hardware_properties.h"
#include "core/hle/kernel/k_capabilities.h"
#include "core/hle/kernel/k_memory_layout.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_process_page_table.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/svc_results.h"
#include "core/hle/kernel/svc_version.h"
namespace Kernel {
Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps, KPageTable* page_table) {
Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps,
KProcessPageTable* page_table) {
// We're initializing an initial process.
m_svc_access_flags.reset();
m_irq_access_flags.reset();
@ -41,7 +42,8 @@ Result KCapabilities::InitializeForKip(std::span<const u32> kern_caps, KPageTabl
R_RETURN(this->SetCapabilities(kern_caps, page_table));
}
Result KCapabilities::InitializeForUser(std::span<const u32> user_caps, KPageTable* page_table) {
Result KCapabilities::InitializeForUser(std::span<const u32> user_caps,
KProcessPageTable* page_table) {
// We're initializing a user process.
m_svc_access_flags.reset();
m_irq_access_flags.reset();
@ -121,7 +123,7 @@ Result KCapabilities::SetSyscallMaskCapability(const u32 cap, u32& set_svc) {
R_SUCCEED();
}
Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KPageTable* page_table) {
Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KProcessPageTable* page_table) {
const auto range_pack = MapRange{cap};
const auto size_pack = MapRangeSize{size_cap};
@ -142,16 +144,13 @@ Result KCapabilities::MapRange_(const u32 cap, const u32 size_cap, KPageTable* p
? KMemoryPermission::UserRead
: KMemoryPermission::UserReadWrite;
if (MapRangeSize{size_cap}.normal) {
// R_RETURN(page_table->MapStatic(phys_addr, size, perm));
R_RETURN(page_table->MapStatic(phys_addr, size, perm));
} else {
// R_RETURN(page_table->MapIo(phys_addr, size, perm));
R_RETURN(page_table->MapIo(phys_addr, size, perm));
}
UNIMPLEMENTED();
R_SUCCEED();
}
Result KCapabilities::MapIoPage_(const u32 cap, KPageTable* page_table) {
Result KCapabilities::MapIoPage_(const u32 cap, KProcessPageTable* page_table) {
// Get/validate address/size
const u64 phys_addr = MapIoPage{cap}.address.Value() * PageSize;
const size_t num_pages = 1;
@ -160,10 +159,7 @@ Result KCapabilities::MapIoPage_(const u32 cap, KPageTable* page_table) {
R_UNLESS(((phys_addr + size - 1) & ~PhysicalMapAllowedMask) == 0, ResultInvalidAddress);
// Do the mapping.
// R_RETURN(page_table->MapIo(phys_addr, size, KMemoryPermission_UserReadWrite));
UNIMPLEMENTED();
R_SUCCEED();
R_RETURN(page_table->MapIo(phys_addr, size, KMemoryPermission::UserReadWrite));
}
template <typename F>
@ -200,13 +196,11 @@ Result KCapabilities::ProcessMapRegionCapability(const u32 cap, F f) {
R_SUCCEED();
}
Result KCapabilities::MapRegion_(const u32 cap, KPageTable* page_table) {
Result KCapabilities::MapRegion_(const u32 cap, KProcessPageTable* page_table) {
// Map each region into the process's page table.
return ProcessMapRegionCapability(
cap, [](KMemoryRegionType region_type, KMemoryPermission perm) -> Result {
// R_RETURN(page_table->MapRegion(region_type, perm));
UNIMPLEMENTED();
R_SUCCEED();
cap, [page_table](KMemoryRegionType region_type, KMemoryPermission perm) -> Result {
R_RETURN(page_table->MapRegion(region_type, perm));
});
}
@ -280,7 +274,7 @@ Result KCapabilities::SetDebugFlagsCapability(const u32 cap) {
}
Result KCapabilities::SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
KPageTable* page_table) {
KProcessPageTable* page_table) {
// Validate this is a capability we can act on.
const auto type = GetCapabilityType(cap);
R_UNLESS(type != CapabilityType::Invalid, ResultInvalidArgument);
@ -318,7 +312,7 @@ Result KCapabilities::SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
}
}
Result KCapabilities::SetCapabilities(std::span<const u32> caps, KPageTable* page_table) {
Result KCapabilities::SetCapabilities(std::span<const u32> caps, KProcessPageTable* page_table) {
u32 set_flags = 0, set_svc = 0;
for (size_t i = 0; i < caps.size(); i++) {

17
src/core/hle/kernel/k_capabilities.h
View file

@ -15,15 +15,15 @@
namespace Kernel {
class KPageTable;
class KProcessPageTable;
class KernelCore;
class KCapabilities {
public:
constexpr explicit KCapabilities() = default;
Result InitializeForKip(std::span<const u32> kern_caps, KPageTable* page_table);
Result InitializeForUser(std::span<const u32> user_caps, KPageTable* page_table);
Result InitializeForKip(std::span<const u32> kern_caps, KProcessPageTable* page_table);
Result InitializeForUser(std::span<const u32> user_caps, KProcessPageTable* page_table);
static Result CheckCapabilities(KernelCore& kernel, std::span<const u32> user_caps);
@ -264,9 +264,9 @@ private:
Result SetCorePriorityCapability(const u32 cap);
Result SetSyscallMaskCapability(const u32 cap, u32& set_svc);
Result MapRange_(const u32 cap, const u32 size_cap, KPageTable* page_table);
Result MapIoPage_(const u32 cap, KPageTable* page_table);
Result MapRegion_(const u32 cap, KPageTable* page_table);
Result MapRange_(const u32 cap, const u32 size_cap, KProcessPageTable* page_table);
Result MapIoPage_(const u32 cap, KProcessPageTable* page_table);
Result MapRegion_(const u32 cap, KProcessPageTable* page_table);
Result SetInterruptPairCapability(const u32 cap);
Result SetProgramTypeCapability(const u32 cap);
Result SetKernelVersionCapability(const u32 cap);
@ -277,8 +277,9 @@ private:
static Result ProcessMapRegionCapability(const u32 cap, F f);
static Result CheckMapRegion(KernelCore& kernel, const u32 cap);
Result SetCapability(const u32 cap, u32& set_flags, u32& set_svc, KPageTable* page_table);
Result SetCapabilities(std::span<const u32> caps, KPageTable* page_table);
Result SetCapability(const u32 cap, u32& set_flags, u32& set_svc,
KProcessPageTable* page_table);
Result SetCapabilities(std::span<const u32> caps, KProcessPageTable* page_table);
private:
Svc::SvcAccessFlagSet m_svc_access_flags{};

4
src/core/hle/kernel/k_device_address_space.cpp
View file

@ -54,7 +54,7 @@ Result KDeviceAddressSpace::Detach(Svc::DeviceName device_name) {
R_SUCCEED();
}
Result KDeviceAddressSpace::Map(KPageTable* page_table, KProcessAddress process_address,
Result KDeviceAddressSpace::Map(KProcessPageTable* page_table, KProcessAddress process_address,
size_t size, u64 device_address, u32 option, bool is_aligned) {
// Check that the address falls within the space.
R_UNLESS((m_space_address <= device_address &&
@ -113,7 +113,7 @@ Result KDeviceAddressSpace::Map(KPageTable* page_table, KProcessAddress process_
R_SUCCEED();
}
Result KDeviceAddressSpace::Unmap(KPageTable* page_table, KProcessAddress process_address,
Result KDeviceAddressSpace::Unmap(KProcessPageTable* page_table, KProcessAddress process_address,
size_t size, u64 device_address) {
// Check that the address falls within the space.
R_UNLESS((m_space_address <= device_address &&

10
src/core/hle/kernel/k_device_address_space.h
View file

@ -5,7 +5,7 @@
#include <string>
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_process_page_table.h"
#include "core/hle/kernel/k_typed_address.h"
#include "core/hle/kernel/slab_helpers.h"
#include "core/hle/result.h"
@ -31,23 +31,23 @@ public:
Result Attach(Svc::DeviceName device_name);
Result Detach(Svc::DeviceName device_name);
Result MapByForce(KPageTable* page_table, KProcessAddress process_address, size_t size,
Result MapByForce(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
u64 device_address, u32 option) {
R_RETURN(this->Map(page_table, process_address, size, device_address, option, false));
}
Result MapAligned(KPageTable* page_table, KProcessAddress process_address, size_t size,
Result MapAligned(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
u64 device_address, u32 option) {
R_RETURN(this->Map(page_table, process_address, size, device_address, option, true));
}
Result Unmap(KPageTable* page_table, KProcessAddress process_address, size_t size,
Result Unmap(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
u64 device_address);
static void Initialize();
private:
Result Map(KPageTable* page_table, KProcessAddress process_address, size_t size,
Result Map(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
u64 device_address, u32 option, bool is_aligned);
private:

8
src/core/hle/kernel/k_memory_layout.h
View file

@ -394,6 +394,14 @@ private:
return region.GetEndAddress();
}
public:
static const KMemoryRegion* Find(const KMemoryLayout& layout, KVirtualAddress address) {
return Find(address, layout.GetVirtualMemoryRegionTree());
}
static const KMemoryRegion* Find(const KMemoryLayout& layout, KPhysicalAddress address) {
return Find(address, layout.GetPhysicalMemoryRegionTree());
}
private:
u64 m_linear_phys_to_virt_diff{};
u64 m_linear_virt_to_phys_diff{};

12
src/core/hle/kernel/k_memory_manager.cpp
View file

@ -456,8 +456,7 @@ size_t KMemoryManager::Impl::Initialize(KPhysicalAddress address, size_t size,
}
void KMemoryManager::Impl::InitializeOptimizedMemory(KernelCore& kernel) {
auto optimize_pa =
KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
std::memset(optimize_map, 0, CalculateOptimizedProcessOverheadSize(m_heap.GetSize()));
@ -465,8 +464,7 @@ void KMemoryManager::Impl::InitializeOptimizedMemory(KernelCore& kernel) {
void KMemoryManager::Impl::TrackUnoptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
size_t num_pages) {
auto optimize_pa =
KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
// Get the range we're tracking.
@ -485,8 +483,7 @@ void KMemoryManager::Impl::TrackUnoptimizedAllocation(KernelCore& kernel, KPhysi
void KMemoryManager::Impl::TrackOptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
size_t num_pages) {
auto optimize_pa =
KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
auto* optimize_map = kernel.System().DeviceMemory().GetPointer<u64>(optimize_pa);
// Get the range we're tracking.
@ -506,8 +503,7 @@ void KMemoryManager::Impl::TrackOptimizedAllocation(KernelCore& kernel, KPhysica
bool KMemoryManager::Impl::ProcessOptimizedAllocation(KernelCore& kernel, KPhysicalAddress block,
size_t num_pages, u8 fill_pattern) {
auto& device_memory = kernel.System().DeviceMemory();
auto optimize_pa =
KPageTable::GetHeapPhysicalAddress(kernel.MemoryLayout(), m_management_region);
auto optimize_pa = KPageTable::GetHeapPhysicalAddress(kernel, m_management_region);
auto* optimize_map = device_memory.GetPointer<u64>(optimize_pa);
// We want to return whether any pages were newly allocated.

3519
src/core/hle/kernel/k_page_table.cpp
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542
src/core/hle/kernel/k_page_table.h
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@ -3,548 +3,14 @@
#pragma once
#include <memory>
#include "common/common_funcs.h"
#include "common/page_table.h"
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/k_dynamic_resource_manager.h"
#include "core/hle/kernel/k_light_lock.h"
#include "core/hle/kernel/k_memory_block.h"
#include "core/hle/kernel/k_memory_block_manager.h"
#include "core/hle/kernel/k_memory_layout.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_typed_address.h"
#include "core/hle/result.h"
#include "core/memory.h"
namespace Core {
class System;
}
#include "core/hle/kernel/k_page_table_base.h"
namespace Kernel {
enum class DisableMergeAttribute : u8 {
None = (0U << 0),
DisableHead = (1U << 0),
DisableHeadAndBody = (1U << 1),
EnableHeadAndBody = (1U << 2),
DisableTail = (1U << 3),
EnableTail = (1U << 4),
EnableAndMergeHeadBodyTail = (1U << 5),
EnableHeadBodyTail = EnableHeadAndBody | EnableTail,
DisableHeadBodyTail = DisableHeadAndBody | DisableTail,
};
struct KPageProperties {
KMemoryPermission perm;
bool io;
bool uncached;
DisableMergeAttribute disable_merge_attributes;
};
static_assert(std::is_trivial_v<KPageProperties>);
static_assert(sizeof(KPageProperties) == sizeof(u32));
class KBlockInfoManager;
class KMemoryBlockManager;
class KResourceLimit;
class KSystemResource;
class KPageTable final {
protected:
struct PageLinkedList;
class KPageTable final : public KPageTableBase {
public:
enum class ICacheInvalidationStrategy : u32 { InvalidateRange, InvalidateAll };
YUZU_NON_COPYABLE(KPageTable);
YUZU_NON_MOVEABLE(KPageTable);
explicit KPageTable(Core::System& system_);
~KPageTable();
Result InitializeForProcess(Svc::CreateProcessFlag as_type, bool enable_aslr,
bool enable_das_merge, bool from_back, KMemoryManager::Pool pool,
KProcessAddress code_addr, size_t code_size,
KSystemResource* system_resource, KResourceLimit* resource_limit,
Core::Memory::Memory& memory);
void Finalize();
Result MapProcessCode(KProcessAddress addr, size_t pages_count, KMemoryState state,
KMemoryPermission perm);
Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
ICacheInvalidationStrategy icache_invalidation_strategy);
Result UnmapProcessMemory(KProcessAddress dst_addr, size_t size, KPageTable& src_page_table,
KProcessAddress src_addr);
Result MapPhysicalMemory(KProcessAddress addr, size_t size);
Result UnmapPhysicalMemory(KProcessAddress addr, size_t size);
Result MapMemory(KProcessAddress dst_addr, KProcessAddress src_addr, size_t size);
Result UnmapMemory(KProcessAddress dst_addr, KProcessAddress src_addr, size_t size);
Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
Svc::MemoryPermission svc_perm);
KMemoryInfo QueryInfo(KProcessAddress addr);
Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm);
Result SetMemoryAttribute(KProcessAddress addr, size_t size, u32 mask, u32 attr);
Result SetMaxHeapSize(size_t size);
Result SetHeapSize(u64* out, size_t size);
Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
KMemoryPermission perm, bool is_aligned, bool check_heap);
Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap);
Result UnlockForDeviceAddressSpace(KProcessAddress addr, size_t size);
Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size);
Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);
Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
KPageTable& src_page_table, KMemoryPermission test_perm,
KMemoryState dst_state, bool send);
Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state);
Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state);
Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
KMemoryPermission perm);
Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
Result LockForCodeMemory(KPageGroup* out, KProcessAddress addr, size_t size);
Result UnlockForCodeMemory(KProcessAddress addr, size_t size, const KPageGroup& pg);
Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr);
Common::PageTable& PageTableImpl() {
return *m_page_table_impl;
}
const Common::PageTable& PageTableImpl() const {
return *m_page_table_impl;
}
KBlockInfoManager* GetBlockInfoManager() {
return m_block_info_manager;
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, KProcessAddress region_start,
size_t region_num_pages, KMemoryState state, KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true, region_start,
region_num_pages, state, perm));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true,
this->GetRegionAddress(state),
this->GetRegionSize(state) / PageSize, state, perm));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, PageSize, 0, false,
this->GetRegionAddress(state),
this->GetRegionSize(state) / PageSize, state, perm));
}
Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
KMemoryPermission perm);
Result UnmapPages(KProcessAddress address, size_t num_pages, KMemoryState state);
Result MapPageGroup(KProcessAddress* out_addr, const KPageGroup& pg,
KProcessAddress region_start, size_t region_num_pages, KMemoryState state,
KMemoryPermission perm);
Result MapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state,
KMemoryPermission perm);
Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state);
void RemapPageGroup(PageLinkedList* page_list, KProcessAddress address, size_t size,
const KPageGroup& pg);
KProcessAddress GetRegionAddress(Svc::MemoryState state) const;
size_t GetRegionSize(Svc::MemoryState state) const;
bool CanContain(KProcessAddress addr, size_t size, Svc::MemoryState state) const;
KProcessAddress GetRegionAddress(KMemoryState state) const {
return this->GetRegionAddress(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
size_t GetRegionSize(KMemoryState state) const {
return this->GetRegionSize(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
return this->CanContain(addr, size,
static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
protected:
struct PageLinkedList {
private:
struct Node {
Node* m_next;
std::array<u8, PageSize - sizeof(Node*)> m_buffer;
};
public:
constexpr PageLinkedList() = default;
void Push(Node* n) {
ASSERT(Common::IsAligned(reinterpret_cast<uintptr_t>(n), PageSize));
n->m_next = m_root;
m_root = n;
}
void Push(Core::Memory::Memory& memory, KVirtualAddress addr) {
this->Push(memory.GetPointer<Node>(GetInteger(addr)));
}
Node* Peek() const {
return m_root;
}
Node* Pop() {
Node* const r = m_root;
m_root = r->m_next;
r->m_next = nullptr;
return r;
}
private:
Node* m_root{};
};
static_assert(std::is_trivially_destructible<PageLinkedList>::value);
private:
enum class OperationType : u32 {
Map = 0,
MapGroup = 1,
MapFirstGroup = 2,
Unmap = 3,
ChangePermissions = 4,
ChangePermissionsAndRefresh = 5,
ChangePermissionsAndRefreshAndFlush = 6,
Separate = 7,
};
static constexpr KMemoryAttribute DefaultMemoryIgnoreAttr =
KMemoryAttribute::IpcLocked | KMemoryAttribute::DeviceShared;
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, bool is_pa_valid, KProcessAddress region_start,
size_t region_num_pages, KMemoryState state, KMemoryPermission perm);
bool IsRegionContiguous(KProcessAddress addr, u64 size) const;
void AddRegionToPages(KProcessAddress start, size_t num_pages, KPageGroup& page_linked_list);
KMemoryInfo QueryInfoImpl(KProcessAddress addr);
KProcessAddress AllocateVirtualMemory(KProcessAddress start, size_t region_num_pages,
u64 needed_num_pages, size_t align);
Result Operate(KProcessAddress addr, size_t num_pages, const KPageGroup& page_group,
OperationType operation);
Result Operate(KProcessAddress addr, size_t num_pages, KMemoryPermission perm,
OperationType operation, KPhysicalAddress map_addr = 0);
void FinalizeUpdate(PageLinkedList* page_list);
KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages,
size_t num_pages, size_t alignment, size_t offset,
size_t guard_pages);
Result CheckMemoryStateContiguous(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
Result CheckMemoryStateContiguous(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask,
KMemoryPermission perm, KMemoryAttribute attr_mask,
KMemoryAttribute attr) const {
R_RETURN(this->CheckMemoryStateContiguous(nullptr, addr, size, state_mask, state, perm_mask,
perm, attr_mask, attr));
}
Result CheckMemoryState(const KMemoryInfo& info, KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
KMemoryAttribute* out_attr, size_t* out_blocks_needed,
KMemoryBlockManager::const_iterator it, KProcessAddress last_addr,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
KMemoryAttribute* out_attr, size_t* out_blocks_needed,
KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
Result CheckMemoryState(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
R_RETURN(CheckMemoryState(nullptr, nullptr, nullptr, out_blocks_needed, addr, size,
state_mask, state, perm_mask, perm, attr_mask, attr,
ignore_attr));
}
Result CheckMemoryState(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
R_RETURN(this->CheckMemoryState(nullptr, addr, size, state_mask, state, perm_mask, perm,
attr_mask, attr, ignore_attr));
}
Result LockMemoryAndOpen(KPageGroup* out_pg, KPhysicalAddress* out_KPhysicalAddress,
KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask,
KMemoryPermission perm, KMemoryAttribute attr_mask,
KMemoryAttribute attr, KMemoryPermission new_perm,
KMemoryAttribute lock_attr);
Result UnlockMemory(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryPermission new_perm, KMemoryAttribute lock_attr,
const KPageGroup* pg);
Result MakePageGroup(KPageGroup& pg, KProcessAddress addr, size_t num_pages);
bool IsValidPageGroup(const KPageGroup& pg, KProcessAddress addr, size_t num_pages);
bool IsLockedByCurrentThread() const {
return m_general_lock.IsLockedByCurrentThread();
}
bool IsHeapPhysicalAddress(const KMemoryLayout& layout, KPhysicalAddress phys_addr) {
ASSERT(this->IsLockedByCurrentThread());
return layout.IsHeapPhysicalAddress(m_cached_physical_heap_region, phys_addr);
}
bool GetPhysicalAddressLocked(KPhysicalAddress* out, KProcessAddress virt_addr) const {
ASSERT(this->IsLockedByCurrentThread());
*out = GetPhysicalAddr(virt_addr);
return *out != 0;
}
Result SetupForIpcClient(PageLinkedList* page_list, size_t* out_blocks_needed,
KProcessAddress address, size_t size, KMemoryPermission test_perm,
KMemoryState dst_state);
Result SetupForIpcServer(KProcessAddress* out_addr, size_t size, KProcessAddress src_addr,
KMemoryPermission test_perm, KMemoryState dst_state,
KPageTable& src_page_table, bool send);
void CleanupForIpcClientOnServerSetupFailure(PageLinkedList* page_list, KProcessAddress address,
size_t size, KMemoryPermission prot_perm);
Result AllocateAndMapPagesImpl(PageLinkedList* page_list, KProcessAddress address,
size_t num_pages, KMemoryPermission perm);
Result MapPageGroupImpl(PageLinkedList* page_list, KProcessAddress address,
const KPageGroup& pg, const KPageProperties properties, bool reuse_ll);
mutable KLightLock m_general_lock;
mutable KLightLock m_map_physical_memory_lock;
public:
constexpr KProcessAddress GetAddressSpaceStart() const {
return m_address_space_start;
}
constexpr KProcessAddress GetAddressSpaceEnd() const {
return m_address_space_end;
}
constexpr size_t GetAddressSpaceSize() const {
return m_address_space_end - m_address_space_start;
}
constexpr KProcessAddress GetHeapRegionStart() const {
return m_heap_region_start;
}
constexpr KProcessAddress GetHeapRegionEnd() const {
return m_heap_region_end;
}
constexpr size_t GetHeapRegionSize() const {
return m_heap_region_end - m_heap_region_start;
}
constexpr KProcessAddress GetAliasRegionStart() const {
return m_alias_region_start;
}
constexpr KProcessAddress GetAliasRegionEnd() const {
return m_alias_region_end;
}
constexpr size_t GetAliasRegionSize() const {
return m_alias_region_end - m_alias_region_start;
}
constexpr KProcessAddress GetStackRegionStart() const {
return m_stack_region_start;
}
constexpr KProcessAddress GetStackRegionEnd() const {
return m_stack_region_end;
}
constexpr size_t GetStackRegionSize() const {
return m_stack_region_end - m_stack_region_start;
}
constexpr KProcessAddress GetKernelMapRegionStart() const {
return m_kernel_map_region_start;
}
constexpr KProcessAddress GetKernelMapRegionEnd() const {
return m_kernel_map_region_end;
}
constexpr KProcessAddress GetCodeRegionStart() const {
return m_code_region_start;
}
constexpr KProcessAddress GetCodeRegionEnd() const {
return m_code_region_end;
}
constexpr KProcessAddress GetAliasCodeRegionStart() const {
return m_alias_code_region_start;
}
constexpr KProcessAddress GetAliasCodeRegionEnd() const {
return m_alias_code_region_end;
}
constexpr size_t GetAliasCodeRegionSize() const {
return m_alias_code_region_end - m_alias_code_region_start;
}
size_t GetNormalMemorySize() const {
KScopedLightLock lk(m_general_lock);
return GetHeapSize() + m_mapped_physical_memory_size;
}
constexpr size_t GetAddressSpaceWidth() const {
return m_address_space_width;
}
constexpr size_t GetHeapSize() const {
return m_current_heap_end - m_heap_region_start;
}
constexpr size_t GetNumGuardPages() const {
return IsKernel() ? 1 : 4;
}
KPhysicalAddress GetPhysicalAddr(KProcessAddress addr) const {
const auto backing_addr = m_page_table_impl->backing_addr[addr >> PageBits];
ASSERT(backing_addr);
return backing_addr + GetInteger(addr);
}
constexpr bool Contains(KProcessAddress addr) const {
return m_address_space_start <= addr && addr <= m_address_space_end - 1;
}
constexpr bool Contains(KProcessAddress addr, size_t size) const {
return m_address_space_start <= addr && addr < addr + size &&
addr + size - 1 <= m_address_space_end - 1;
}
constexpr bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
return this->Contains(addr, size) && m_alias_region_start <= addr &&
addr + size - 1 <= m_alias_region_end - 1;
}
constexpr bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
return this->Contains(addr, size) && m_heap_region_start <= addr &&
addr + size - 1 <= m_heap_region_end - 1;
}
public:
static KVirtualAddress GetLinearMappedVirtualAddress(const KMemoryLayout& layout,
KPhysicalAddress addr) {
return layout.GetLinearVirtualAddress(addr);
}
static KPhysicalAddress GetLinearMappedPhysicalAddress(const KMemoryLayout& layout,
KVirtualAddress addr) {
return layout.GetLinearPhysicalAddress(addr);
}
static KVirtualAddress GetHeapVirtualAddress(const KMemoryLayout& layout,
KPhysicalAddress addr) {
return GetLinearMappedVirtualAddress(layout, addr);
}
static KPhysicalAddress GetHeapPhysicalAddress(const KMemoryLayout& layout,
KVirtualAddress addr) {
return GetLinearMappedPhysicalAddress(layout, addr);
}
static KVirtualAddress GetPageTableVirtualAddress(const KMemoryLayout& layout,
KPhysicalAddress addr) {
return GetLinearMappedVirtualAddress(layout, addr);
}
static KPhysicalAddress GetPageTablePhysicalAddress(const KMemoryLayout& layout,
KVirtualAddress addr) {
return GetLinearMappedPhysicalAddress(layout, addr);
}
private:
constexpr bool IsKernel() const {
return m_is_kernel;
}
constexpr bool IsAslrEnabled() const {
return m_enable_aslr;
}
constexpr bool ContainsPages(KProcessAddress addr, size_t num_pages) const {
return (m_address_space_start <= addr) &&
(num_pages <= (m_address_space_end - m_address_space_start) / PageSize) &&
(addr + num_pages * PageSize - 1 <= m_address_space_end - 1);
}
private:
class KScopedPageTableUpdater {
private:
KPageTable* m_pt{};
PageLinkedList m_ll;
public:
explicit KScopedPageTableUpdater(KPageTable* pt) : m_pt(pt) {}
explicit KScopedPageTableUpdater(KPageTable& pt) : KScopedPageTableUpdater(&pt) {}
~KScopedPageTableUpdater() {
m_pt->FinalizeUpdate(this->GetPageList());
}
PageLinkedList* GetPageList() {
return std::addressof(m_ll);
}
};
private:
KProcessAddress m_address_space_start{};
KProcessAddress m_address_space_end{};
KProcessAddress m_heap_region_start{};
KProcessAddress m_heap_region_end{};
KProcessAddress m_current_heap_end{};
KProcessAddress m_alias_region_start{};
KProcessAddress m_alias_region_end{};
KProcessAddress m_stack_region_start{};
KProcessAddress m_stack_region_end{};
KProcessAddress m_kernel_map_region_start{};
KProcessAddress m_kernel_map_region_end{};
KProcessAddress m_code_region_start{};
KProcessAddress m_code_region_end{};
KProcessAddress m_alias_code_region_start{};
KProcessAddress m_alias_code_region_end{};
size_t m_max_heap_size{};
size_t m_mapped_physical_memory_size{};
size_t m_mapped_unsafe_physical_memory{};
size_t m_mapped_insecure_memory{};
size_t m_mapped_ipc_server_memory{};
size_t m_address_space_width{};
KMemoryBlockManager m_memory_block_manager;
u32 m_allocate_option{};
bool m_is_kernel{};
bool m_enable_aslr{};
bool m_enable_device_address_space_merge{};
KMemoryBlockSlabManager* m_memory_block_slab_manager{};
KBlockInfoManager* m_block_info_manager{};
KResourceLimit* m_resource_limit{};
u32 m_heap_fill_value{};
u32 m_ipc_fill_value{};
u32 m_stack_fill_value{};
const KMemoryRegion* m_cached_physical_heap_region{};
KMemoryManager::Pool m_memory_pool{KMemoryManager::Pool::Application};
KMemoryManager::Direction m_allocation_option{KMemoryManager::Direction::FromFront};
std::unique_ptr<Common::PageTable> m_page_table_impl;
Core::System& m_system;
KernelCore& m_kernel;
Core::Memory::Memory* m_memory{};
explicit KPageTable(KernelCore& kernel) : KPageTableBase(kernel) {}
~KPageTable() = default;
};
} // namespace Kernel

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src/core/hle/kernel/k_page_table_base.cpp Normal file
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <memory>
#include "common/common_funcs.h"
#include "common/page_table.h"
#include "core/core.h"
#include "core/hle/kernel/k_dynamic_resource_manager.h"
#include "core/hle/kernel/k_light_lock.h"
#include "core/hle/kernel/k_memory_block.h"
#include "core/hle/kernel/k_memory_block_manager.h"
#include "core/hle/kernel/k_memory_layout.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_typed_address.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/result.h"
#include "core/memory.h"
namespace Kernel {
enum class DisableMergeAttribute : u8 {
None = (0U << 0),
DisableHead = (1U << 0),
DisableHeadAndBody = (1U << 1),
EnableHeadAndBody = (1U << 2),
DisableTail = (1U << 3),
EnableTail = (1U << 4),
EnableAndMergeHeadBodyTail = (1U << 5),
EnableHeadBodyTail = EnableHeadAndBody | EnableTail,
DisableHeadBodyTail = DisableHeadAndBody | DisableTail,
};
DECLARE_ENUM_FLAG_OPERATORS(DisableMergeAttribute);
struct KPageProperties {
KMemoryPermission perm;
bool io;
bool uncached;
DisableMergeAttribute disable_merge_attributes;
};
static_assert(std::is_trivial_v<KPageProperties>);
static_assert(sizeof(KPageProperties) == sizeof(u32));
class KResourceLimit;
class KSystemResource;
class KPageTableBase {
YUZU_NON_COPYABLE(KPageTableBase);
YUZU_NON_MOVEABLE(KPageTableBase);
public:
using TraversalEntry = Common::PageTable::TraversalEntry;
using TraversalContext = Common::PageTable::TraversalContext;
class MemoryRange {
private:
KernelCore& m_kernel;
KPhysicalAddress m_address;
size_t m_size;
bool m_heap;
public:
explicit MemoryRange(KernelCore& kernel)
: m_kernel(kernel), m_address(0), m_size(0), m_heap(false) {}
void Set(KPhysicalAddress address, size_t size, bool heap) {
m_address = address;
m_size = size;
m_heap = heap;
}
KPhysicalAddress GetAddress() const {
return m_address;
}
size_t GetSize() const {
return m_size;
}
bool IsHeap() const {
return m_heap;
}
void Open();
void Close();
};
protected:
enum MemoryFillValue : u8 {
MemoryFillValue_Zero = 0,
MemoryFillValue_Stack = 'X',
MemoryFillValue_Ipc = 'Y',
MemoryFillValue_Heap = 'Z',
};
enum class OperationType {
Map = 0,
MapGroup = 1,
MapFirstGroup = 2,
Unmap = 3,
ChangePermissions = 4,
ChangePermissionsAndRefresh = 5,
ChangePermissionsAndRefreshAndFlush = 6,
Separate = 7,
};
static constexpr size_t MaxPhysicalMapAlignment = 1_GiB;
static constexpr size_t RegionAlignment = 2_MiB;
static_assert(RegionAlignment == KernelAslrAlignment);
struct PageLinkedList {
private:
struct Node {
Node* m_next;
std::array<u8, PageSize - sizeof(Node*)> m_buffer;
};
static_assert(std::is_trivial_v<Node>);
private:
Node* m_root{};
public:
constexpr PageLinkedList() : m_root(nullptr) {}
void Push(Node* n) {
ASSERT(Common::IsAligned(reinterpret_cast<uintptr_t>(n), PageSize));
n->m_next = m_root;
m_root = n;
}
Node* Peek() const {
return m_root;
}
Node* Pop() {
Node* const r = m_root;
m_root = r->m_next;
r->m_next = nullptr;
return r;
}
};
static_assert(std::is_trivially_destructible_v<PageLinkedList>);
static constexpr auto DefaultMemoryIgnoreAttr =
KMemoryAttribute::IpcLocked | KMemoryAttribute::DeviceShared;
static constexpr size_t GetAddressSpaceWidth(Svc::CreateProcessFlag as_type) {
switch (static_cast<Svc::CreateProcessFlag>(as_type &
Svc::CreateProcessFlag::AddressSpaceMask)) {
case Svc::CreateProcessFlag::AddressSpace64Bit:
return 39;
case Svc::CreateProcessFlag::AddressSpace64BitDeprecated:
return 36;
case Svc::CreateProcessFlag::AddressSpace32Bit:
case Svc::CreateProcessFlag::AddressSpace32BitWithoutAlias:
return 32;
default:
UNREACHABLE();
}
}
private:
class KScopedPageTableUpdater {
private:
KPageTableBase* m_pt;
PageLinkedList m_ll;
public:
explicit KScopedPageTableUpdater(KPageTableBase* pt) : m_pt(pt), m_ll() {}
explicit KScopedPageTableUpdater(KPageTableBase& pt)
: KScopedPageTableUpdater(std::addressof(pt)) {}
~KScopedPageTableUpdater() {
m_pt->FinalizeUpdate(this->GetPageList());
}
PageLinkedList* GetPageList() {
return std::addressof(m_ll);
}
};
private:
KernelCore& m_kernel;
Core::System& m_system;
KProcessAddress m_address_space_start{};
KProcessAddress m_address_space_end{};
KProcessAddress m_heap_region_start{};
KProcessAddress m_heap_region_end{};
KProcessAddress m_current_heap_end{};
KProcessAddress m_alias_region_start{};
KProcessAddress m_alias_region_end{};
KProcessAddress m_stack_region_start{};
KProcessAddress m_stack_region_end{};
KProcessAddress m_kernel_map_region_start{};
KProcessAddress m_kernel_map_region_end{};
KProcessAddress m_alias_code_region_start{};
KProcessAddress m_alias_code_region_end{};
KProcessAddress m_code_region_start{};
KProcessAddress m_code_region_end{};
size_t m_max_heap_size{};
size_t m_mapped_physical_memory_size{};
size_t m_mapped_unsafe_physical_memory{};
size_t m_mapped_insecure_memory{};
size_t m_mapped_ipc_server_memory{};
mutable KLightLock m_general_lock;
mutable KLightLock m_map_physical_memory_lock;
KLightLock m_device_map_lock;
std::unique_ptr<Common::PageTable> m_impl{};
Core::Memory::Memory* m_memory{};
KMemoryBlockManager m_memory_block_manager{};
u32 m_allocate_option{};
u32 m_address_space_width{};
bool m_is_kernel{};
bool m_enable_aslr{};
bool m_enable_device_address_space_merge{};
KMemoryBlockSlabManager* m_memory_block_slab_manager{};
KBlockInfoManager* m_block_info_manager{};
KResourceLimit* m_resource_limit{};
const KMemoryRegion* m_cached_physical_linear_region{};
const KMemoryRegion* m_cached_physical_heap_region{};
MemoryFillValue m_heap_fill_value{};
MemoryFillValue m_ipc_fill_value{};
MemoryFillValue m_stack_fill_value{};
public:
explicit KPageTableBase(KernelCore& kernel);
~KPageTableBase();
Result InitializeForKernel(bool is_64_bit, KVirtualAddress start, KVirtualAddress end,
Core::Memory::Memory& memory);
Result InitializeForProcess(Svc::CreateProcessFlag as_type, bool enable_aslr,
bool enable_device_address_space_merge, bool from_back,
KMemoryManager::Pool pool, KProcessAddress code_address,
size_t code_size, KSystemResource* system_resource,
KResourceLimit* resource_limit, Core::Memory::Memory& memory);
void Finalize();
bool IsKernel() const {
return m_is_kernel;
}
bool IsAslrEnabled() const {
return m_enable_aslr;
}
bool Contains(KProcessAddress addr) const {
return m_address_space_start <= addr && addr <= m_address_space_end - 1;
}
bool Contains(KProcessAddress addr, size_t size) const {
return m_address_space_start <= addr && addr < addr + size &&
addr + size - 1 <= m_address_space_end - 1;
}
bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
return this->Contains(addr, size) && m_alias_region_start <= addr &&
addr + size - 1 <= m_alias_region_end - 1;
}
bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
return this->Contains(addr, size) && m_heap_region_start <= addr &&
addr + size - 1 <= m_heap_region_end - 1;
}
bool IsInUnsafeAliasRegion(KProcessAddress addr, size_t size) const {
// Even though Unsafe physical memory is KMemoryState_Normal, it must be mapped inside the
// alias code region.
return this->CanContain(addr, size, Svc::MemoryState::AliasCode);
}
KScopedLightLock AcquireDeviceMapLock() {
return KScopedLightLock(m_device_map_lock);
}
KProcessAddress GetRegionAddress(Svc::MemoryState state) const;
size_t GetRegionSize(Svc::MemoryState state) const;
bool CanContain(KProcessAddress addr, size_t size, Svc::MemoryState state) const;
KProcessAddress GetRegionAddress(KMemoryState state) const {
return this->GetRegionAddress(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
size_t GetRegionSize(KMemoryState state) const {
return this->GetRegionSize(static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
return this->CanContain(addr, size,
static_cast<Svc::MemoryState>(state & KMemoryState::Mask));
}
public:
Core::Memory::Memory& GetMemory() {
return *m_memory;
}
Core::Memory::Memory& GetMemory() const {
return *m_memory;
}
Common::PageTable& GetImpl() {
return *m_impl;
}
Common::PageTable& GetImpl() const {
return *m_impl;
}
size_t GetNumGuardPages() const {
return this->IsKernel() ? 1 : 4;
}
protected:
// NOTE: These three functions (Operate, Operate, FinalizeUpdate) are virtual functions
// in Nintendo's kernel. We devirtualize them, since KPageTable is the only derived
// class, and this avoids unnecessary virtual function calls.
Result Operate(PageLinkedList* page_list, KProcessAddress virt_addr, size_t num_pages,
KPhysicalAddress phys_addr, bool is_pa_valid, const KPageProperties properties,
OperationType operation, bool reuse_ll);
Result Operate(PageLinkedList* page_list, KProcessAddress virt_addr, size_t num_pages,
const KPageGroup& page_group, const KPageProperties properties,
OperationType operation, bool reuse_ll);
void FinalizeUpdate(PageLinkedList* page_list);
bool IsLockedByCurrentThread() const {
return m_general_lock.IsLockedByCurrentThread();
}
bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr) {
ASSERT(this->IsLockedByCurrentThread());
return m_kernel.MemoryLayout().IsLinearMappedPhysicalAddress(
m_cached_physical_linear_region, phys_addr);
}
bool IsLinearMappedPhysicalAddress(KPhysicalAddress phys_addr, size_t size) {
ASSERT(this->IsLockedByCurrentThread());
return m_kernel.MemoryLayout().IsLinearMappedPhysicalAddress(
m_cached_physical_linear_region, phys_addr, size);
}
bool IsHeapPhysicalAddress(KPhysicalAddress phys_addr) {
ASSERT(this->IsLockedByCurrentThread());
return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
phys_addr);
}
bool IsHeapPhysicalAddress(KPhysicalAddress phys_addr, size_t size) {
ASSERT(this->IsLockedByCurrentThread());
return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
phys_addr, size);
}
bool IsHeapPhysicalAddressForFinalize(KPhysicalAddress phys_addr) {
ASSERT(!this->IsLockedByCurrentThread());
return m_kernel.MemoryLayout().IsHeapPhysicalAddress(m_cached_physical_heap_region,
phys_addr);
}
bool ContainsPages(KProcessAddress addr, size_t num_pages) const {
return (m_address_space_start <= addr) &&
(num_pages <= (m_address_space_end - m_address_space_start) / PageSize) &&
(addr + num_pages * PageSize - 1 <= m_address_space_end - 1);
}
private:
KProcessAddress FindFreeArea(KProcessAddress region_start, size_t region_num_pages,
size_t num_pages, size_t alignment, size_t offset,
size_t guard_pages) const;
Result CheckMemoryStateContiguous(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
Result CheckMemoryStateContiguous(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask,
KMemoryPermission perm, KMemoryAttribute attr_mask,
KMemoryAttribute attr) const {
R_RETURN(this->CheckMemoryStateContiguous(nullptr, addr, size, state_mask, state, perm_mask,
perm, attr_mask, attr));
}
Result CheckMemoryState(const KMemoryInfo& info, KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
KMemoryAttribute* out_attr, size_t* out_blocks_needed,
KMemoryBlockManager::const_iterator it, KProcessAddress last_addr,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
Result CheckMemoryState(KMemoryState* out_state, KMemoryPermission* out_perm,
KMemoryAttribute* out_attr, size_t* out_blocks_needed,
KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const;
Result CheckMemoryState(size_t* out_blocks_needed, KProcessAddress addr, size_t size,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
R_RETURN(this->CheckMemoryState(nullptr, nullptr, nullptr, out_blocks_needed, addr, size,
state_mask, state, perm_mask, perm, attr_mask, attr,
ignore_attr));
}
Result CheckMemoryState(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) const {
R_RETURN(this->CheckMemoryState(nullptr, addr, size, state_mask, state, perm_mask, perm,
attr_mask, attr, ignore_attr));
}
Result LockMemoryAndOpen(KPageGroup* out_pg, KPhysicalAddress* out_paddr, KProcessAddress addr,
size_t size, KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryPermission new_perm, KMemoryAttribute lock_attr);
Result UnlockMemory(KProcessAddress addr, size_t size, KMemoryState state_mask,
KMemoryState state, KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr,
KMemoryPermission new_perm, KMemoryAttribute lock_attr,
const KPageGroup* pg);
Result QueryInfoImpl(KMemoryInfo* out_info, Svc::PageInfo* out_page,
KProcessAddress address) const;
Result QueryMappingImpl(KProcessAddress* out, KPhysicalAddress address, size_t size,
Svc::MemoryState state) const;
Result AllocateAndMapPagesImpl(PageLinkedList* page_list, KProcessAddress address,
size_t num_pages, KMemoryPermission perm);
Result MapPageGroupImpl(PageLinkedList* page_list, KProcessAddress address,
const KPageGroup& pg, const KPageProperties properties, bool reuse_ll);
void RemapPageGroup(PageLinkedList* page_list, KProcessAddress address, size_t size,
const KPageGroup& pg);
Result MakePageGroup(KPageGroup& pg, KProcessAddress addr, size_t num_pages);
bool IsValidPageGroup(const KPageGroup& pg, KProcessAddress addr, size_t num_pages);
Result GetContiguousMemoryRangeWithState(MemoryRange* out, KProcessAddress address, size_t size,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr);
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, bool is_pa_valid, KProcessAddress region_start,
size_t region_num_pages, KMemoryState state, KMemoryPermission perm);
Result MapIoImpl(KProcessAddress* out, PageLinkedList* page_list, KPhysicalAddress phys_addr,
size_t size, KMemoryState state, KMemoryPermission perm);
Result ReadIoMemoryImpl(KProcessAddress dst_addr, KPhysicalAddress phys_addr, size_t size,
KMemoryState state);
Result WriteIoMemoryImpl(KPhysicalAddress phys_addr, KProcessAddress src_addr, size_t size,
KMemoryState state);
Result SetupForIpcClient(PageLinkedList* page_list, size_t* out_blocks_needed,
KProcessAddress address, size_t size, KMemoryPermission test_perm,
KMemoryState dst_state);
Result SetupForIpcServer(KProcessAddress* out_addr, size_t size, KProcessAddress src_addr,
KMemoryPermission test_perm, KMemoryState dst_state,
KPageTableBase& src_page_table, bool send);
void CleanupForIpcClientOnServerSetupFailure(PageLinkedList* page_list, KProcessAddress address,
size_t size, KMemoryPermission prot_perm);
size_t GetSize(KMemoryState state) const;
bool GetPhysicalAddressLocked(KPhysicalAddress* out, KProcessAddress virt_addr) const {
// Validate pre-conditions.
ASSERT(this->IsLockedByCurrentThread());
return this->GetImpl().GetPhysicalAddress(out, virt_addr);
}
public:
bool GetPhysicalAddress(KPhysicalAddress* out, KProcessAddress virt_addr) const {
// Validate pre-conditions.
ASSERT(!this->IsLockedByCurrentThread());
// Acquire exclusive access to the table while doing address translation.
KScopedLightLock lk(m_general_lock);
return this->GetPhysicalAddressLocked(out, virt_addr);
}
KBlockInfoManager* GetBlockInfoManager() const {
return m_block_info_manager;
}
Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm);
Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
Svc::MemoryPermission perm);
Result SetMemoryAttribute(KProcessAddress addr, size_t size, KMemoryAttribute mask,
KMemoryAttribute attr);
Result SetHeapSize(KProcessAddress* out, size_t size);
Result SetMaxHeapSize(size_t size);
Result QueryInfo(KMemoryInfo* out_info, Svc::PageInfo* out_page_info,
KProcessAddress addr) const;
Result QueryPhysicalAddress(Svc::lp64::PhysicalMemoryInfo* out, KProcessAddress address) const;
Result QueryStaticMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) const {
R_RETURN(this->QueryMappingImpl(out, address, size, Svc::MemoryState::Static));
}
Result QueryIoMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) const {
R_RETURN(this->QueryMappingImpl(out, address, size, Svc::MemoryState::Io));
}
Result MapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result UnmapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result MapIo(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm);
Result MapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
Svc::MemoryMapping mapping, Svc::MemoryPermission perm);
Result UnmapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
Svc::MemoryMapping mapping);
Result MapStatic(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm);
Result MapRegion(KMemoryRegionType region_type, KMemoryPermission perm);
Result MapInsecureMemory(KProcessAddress address, size_t size);
Result UnmapInsecureMemory(KProcessAddress address, size_t size);
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, KProcessAddress region_start,
size_t region_num_pages, KMemoryState state, KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true, region_start,
region_num_pages, state, perm));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, alignment, phys_addr, true,
this->GetRegionAddress(state),
this->GetRegionSize(state) / PageSize, state, perm));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
KMemoryPermission perm) {
R_RETURN(this->MapPages(out_addr, num_pages, PageSize, 0, false,
this->GetRegionAddress(state),
this->GetRegionSize(state) / PageSize, state, perm));
}
Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
KMemoryPermission perm);
Result UnmapPages(KProcessAddress address, size_t num_pages, KMemoryState state);
Result MapPageGroup(KProcessAddress* out_addr, const KPageGroup& pg,
KProcessAddress region_start, size_t region_num_pages, KMemoryState state,
KMemoryPermission perm);
Result MapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state,
KMemoryPermission perm);
Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state);
Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr);
Result InvalidateProcessDataCache(KProcessAddress address, size_t size);
Result InvalidateCurrentProcessDataCache(KProcessAddress address, size_t size);
Result ReadDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result ReadDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
KMemoryState state);
Result WriteDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size);
Result WriteDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
KMemoryState state);
Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
KMemoryPermission perm, bool is_aligned, bool check_heap);
Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap);
Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size);
Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size);
Result OpenMemoryRangeForMapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
KProcessAddress address, size_t size,
KMemoryPermission perm, bool is_aligned);
Result OpenMemoryRangeForUnmapDeviceAddressSpace(MemoryRange* out, KProcessAddress address,
size_t size);
Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size);
Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size);
Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
KMemoryPermission perm);
Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
Result LockForCodeMemory(KPageGroup* out, KProcessAddress address, size_t size);
Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup& pg);
Result OpenMemoryRangeForProcessCacheOperation(MemoryRange* out, KProcessAddress address,
size_t size);
Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size,
KProcessAddress src_addr, KMemoryState src_state_mask,
KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
Result CopyMemoryFromLinearToKernel(void* buffer, size_t size, KProcessAddress src_addr,
KMemoryState src_state_mask, KMemoryState src_state,
KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
Result CopyMemoryFromUserToLinear(KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state,
KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
KProcessAddress src_addr);
Result CopyMemoryFromKernelToLinear(KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state,
KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
void* buffer);
Result CopyMemoryFromHeapToHeap(KPageTableBase& dst_page_table, KProcessAddress dst_addr,
size_t size, KMemoryState dst_state_mask,
KMemoryState dst_state, KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
KProcessAddress src_addr, KMemoryState src_state_mask,
KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
Result CopyMemoryFromHeapToHeapWithoutCheckDestination(
KPageTableBase& dst_page_table, KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state, KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr, KProcessAddress src_addr,
KMemoryState src_state_mask, KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr);
Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
KPageTableBase& src_page_table, KMemoryPermission test_perm,
KMemoryState dst_state, bool send);
Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state);
Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state);
Result MapPhysicalMemory(KProcessAddress address, size_t size);
Result UnmapPhysicalMemory(KProcessAddress address, size_t size);
Result MapPhysicalMemoryUnsafe(KProcessAddress address, size_t size);
Result UnmapPhysicalMemoryUnsafe(KProcessAddress address, size_t size);
Result UnmapProcessMemory(KProcessAddress dst_address, size_t size, KPageTableBase& src_pt,
KProcessAddress src_address);
public:
KProcessAddress GetAddressSpaceStart() const {
return m_address_space_start;
}
KProcessAddress GetHeapRegionStart() const {
return m_heap_region_start;
}
KProcessAddress GetAliasRegionStart() const {
return m_alias_region_start;
}
KProcessAddress GetStackRegionStart() const {
return m_stack_region_start;
}
KProcessAddress GetKernelMapRegionStart() const {
return m_kernel_map_region_start;
}
KProcessAddress GetCodeRegionStart() const {
return m_code_region_start;
}
KProcessAddress GetAliasCodeRegionStart() const {
return m_alias_code_region_start;
}
size_t GetAddressSpaceSize() const {
return m_address_space_end - m_address_space_start;
}
size_t GetHeapRegionSize() const {
return m_heap_region_end - m_heap_region_start;
}
size_t GetAliasRegionSize() const {
return m_alias_region_end - m_alias_region_start;
}
size_t GetStackRegionSize() const {
return m_stack_region_end - m_stack_region_start;
}
size_t GetKernelMapRegionSize() const {
return m_kernel_map_region_end - m_kernel_map_region_start;
}
size_t GetCodeRegionSize() const {
return m_code_region_end - m_code_region_start;
}
size_t GetAliasCodeRegionSize() const {
return m_alias_code_region_end - m_alias_code_region_start;
}
size_t GetNormalMemorySize() const {
// Lock the table.
KScopedLightLock lk(m_general_lock);
return (m_current_heap_end - m_heap_region_start) + m_mapped_physical_memory_size;
}
size_t GetCodeSize() const;
size_t GetCodeDataSize() const;
size_t GetAliasCodeSize() const;
size_t GetAliasCodeDataSize() const;
u32 GetAllocateOption() const {
return m_allocate_option;
}
u32 GetAddressSpaceWidth() const {
return m_address_space_width;
}
public:
// Linear mapped
static u8* GetLinearMappedVirtualPointer(KernelCore& kernel, KPhysicalAddress addr) {
return kernel.System().DeviceMemory().GetPointer<u8>(addr);
}
static KPhysicalAddress GetLinearMappedPhysicalAddress(KernelCore& kernel,
KVirtualAddress addr) {
return kernel.MemoryLayout().GetLinearPhysicalAddress(addr);
}
static KVirtualAddress GetLinearMappedVirtualAddress(KernelCore& kernel,
KPhysicalAddress addr) {
return kernel.MemoryLayout().GetLinearVirtualAddress(addr);
}
// Heap
static u8* GetHeapVirtualPointer(KernelCore& kernel, KPhysicalAddress addr) {
return kernel.System().DeviceMemory().GetPointer<u8>(addr);
}
static KPhysicalAddress GetHeapPhysicalAddress(KernelCore& kernel, KVirtualAddress addr) {
return GetLinearMappedPhysicalAddress(kernel, addr);
}
static KVirtualAddress GetHeapVirtualAddress(KernelCore& kernel, KPhysicalAddress addr) {
return GetLinearMappedVirtualAddress(kernel, addr);
}
// Member heap
u8* GetHeapVirtualPointer(KPhysicalAddress addr) {
return GetHeapVirtualPointer(m_kernel, addr);
}
KPhysicalAddress GetHeapPhysicalAddress(KVirtualAddress addr) {
return GetHeapPhysicalAddress(m_kernel, addr);
}
KVirtualAddress GetHeapVirtualAddress(KPhysicalAddress addr) {
return GetHeapVirtualAddress(m_kernel, addr);
}
// TODO: GetPageTableVirtualAddress
// TODO: GetPageTablePhysicalAddress
};
} // namespace Kernel

18
src/core/hle/kernel/k_process.cpp
View file

@ -298,9 +298,9 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
const bool enable_aslr = True(params.flags & Svc::CreateProcessFlag::EnableAslr);
const bool enable_das_merge =
False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
R_TRY(m_page_table.InitializeForProcess(
as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address,
params.code_num_pages * PageSize, m_system_resource, res_limit, this->GetMemory()));
R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
params.code_address, params.code_num_pages * PageSize,
m_system_resource, res_limit, this->GetMemory()));
}
ON_RESULT_FAILURE_2 {
m_page_table.Finalize();
@ -391,9 +391,9 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
const bool enable_aslr = True(params.flags & Svc::CreateProcessFlag::EnableAslr);
const bool enable_das_merge =
False(params.flags & Svc::CreateProcessFlag::DisableDeviceAddressSpaceMerge);
R_TRY(m_page_table.InitializeForProcess(as_type, enable_aslr, enable_das_merge,
!enable_aslr, pool, params.code_address, code_size,
m_system_resource, res_limit, this->GetMemory()));
R_TRY(m_page_table.Initialize(as_type, enable_aslr, enable_das_merge, !enable_aslr, pool,
params.code_address, code_size, m_system_resource, res_limit,
this->GetMemory()));
}
ON_RESULT_FAILURE_2 {
m_page_table.Finalize();
@ -1122,9 +1122,9 @@ Result KProcess::GetThreadList(s32* out_num_threads, KProcessAddress out_thread_
void KProcess::Switch(KProcess* cur_process, KProcess* next_process) {}
KProcess::KProcess(KernelCore& kernel)
: KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel.System()},
m_state_lock{kernel}, m_list_lock{kernel}, m_cond_var{kernel.System()},
m_address_arbiter{kernel.System()}, m_handle_table{kernel} {}
: KAutoObjectWithSlabHeapAndContainer(kernel), m_page_table{kernel}, m_state_lock{kernel},
m_list_lock{kernel}, m_cond_var{kernel.System()}, m_address_arbiter{kernel.System()},
m_handle_table{kernel} {}
KProcess::~KProcess() = default;
Result KProcess::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size,

14
src/core/hle/kernel/k_process.h
View file

@ -5,13 +5,14 @@
#include <map>
#include "core/file_sys/program_metadata.h"
#include "core/hle/kernel/code_set.h"
#include "core/hle/kernel/k_address_arbiter.h"
#include "core/hle/kernel/k_capabilities.h"
#include "core/hle/kernel/k_condition_variable.h"
#include "core/hle/kernel/k_handle_table.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_page_table_manager.h"
#include "core/hle/kernel/k_process_page_table.h"
#include "core/hle/kernel/k_system_resource.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/k_thread_local_page.h"
@ -65,7 +66,7 @@ private:
using TLPIterator = TLPTree::iterator;
private:
KPageTable m_page_table;
KProcessPageTable m_page_table;
std::atomic<size_t> m_used_kernel_memory_size{};
TLPTree m_fully_used_tlp_tree{};
TLPTree m_partially_used_tlp_tree{};
@ -254,9 +255,8 @@ public:
return m_is_hbl;
}
Kernel::KMemoryManager::Direction GetAllocateOption() const {
// TODO: property of the KPageTableBase
return KMemoryManager::Direction::FromFront;
u32 GetAllocateOption() const {
return m_page_table.GetAllocateOption();
}
ThreadList& GetThreadList() {
@ -295,10 +295,10 @@ public:
return m_list_lock;
}
KPageTable& GetPageTable() {
KProcessPageTable& GetPageTable() {
return m_page_table;
}
const KPageTable& GetPageTable() const {
const KProcessPageTable& GetPageTable() const {
return m_page_table;
}

480
src/core/hle/kernel/k_process_page_table.h Normal file
View file

@ -0,0 +1,480 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_scoped_lock.h"
#include "core/hle/kernel/svc_types.h"
namespace Core {
class ARM_Interface;
}
namespace Kernel {
class KProcessPageTable {
private:
KPageTable m_page_table;
public:
KProcessPageTable(KernelCore& kernel) : m_page_table(kernel) {}
Result Initialize(Svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge,
bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address,
size_t code_size, KSystemResource* system_resource,
KResourceLimit* resource_limit, Core::Memory::Memory& memory) {
R_RETURN(m_page_table.InitializeForProcess(as_type, enable_aslr, enable_das_merge,
from_back, pool, code_address, code_size,
system_resource, resource_limit, memory));
}
void Finalize() {
m_page_table.Finalize();
}
Core::Memory::Memory& GetMemory() {
return m_page_table.GetMemory();
}
Core::Memory::Memory& GetMemory() const {
return m_page_table.GetMemory();
}
Common::PageTable& GetImpl() {
return m_page_table.GetImpl();
}
Common::PageTable& GetImpl() const {
return m_page_table.GetImpl();
}
size_t GetNumGuardPages() const {
return m_page_table.GetNumGuardPages();
}
KScopedLightLock AcquireDeviceMapLock() {
return m_page_table.AcquireDeviceMapLock();
}
Result SetMemoryPermission(KProcessAddress addr, size_t size, Svc::MemoryPermission perm) {
R_RETURN(m_page_table.SetMemoryPermission(addr, size, perm));
}
Result SetProcessMemoryPermission(KProcessAddress addr, size_t size,
Svc::MemoryPermission perm) {
R_RETURN(m_page_table.SetProcessMemoryPermission(addr, size, perm));
}
Result SetMemoryAttribute(KProcessAddress addr, size_t size, KMemoryAttribute mask,
KMemoryAttribute attr) {
R_RETURN(m_page_table.SetMemoryAttribute(addr, size, mask, attr));
}
Result SetHeapSize(KProcessAddress* out, size_t size) {
R_RETURN(m_page_table.SetHeapSize(out, size));
}
Result SetMaxHeapSize(size_t size) {
R_RETURN(m_page_table.SetMaxHeapSize(size));
}
Result QueryInfo(KMemoryInfo* out_info, Svc::PageInfo* out_page_info,
KProcessAddress addr) const {
R_RETURN(m_page_table.QueryInfo(out_info, out_page_info, addr));
}
Result QueryPhysicalAddress(Svc::lp64::PhysicalMemoryInfo* out, KProcessAddress address) {
R_RETURN(m_page_table.QueryPhysicalAddress(out, address));
}
Result QueryStaticMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) {
R_RETURN(m_page_table.QueryStaticMapping(out, address, size));
}
Result QueryIoMapping(KProcessAddress* out, KPhysicalAddress address, size_t size) {
R_RETURN(m_page_table.QueryIoMapping(out, address, size));
}
Result MapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.MapMemory(dst_address, src_address, size));
}
Result UnmapMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.UnmapMemory(dst_address, src_address, size));
}
Result MapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.MapCodeMemory(dst_address, src_address, size));
}
Result UnmapCodeMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.UnmapCodeMemory(dst_address, src_address, size));
}
Result MapIo(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm) {
R_RETURN(m_page_table.MapIo(phys_addr, size, perm));
}
Result MapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
Svc::MemoryMapping mapping, Svc::MemoryPermission perm) {
R_RETURN(m_page_table.MapIoRegion(dst_address, phys_addr, size, mapping, perm));
}
Result UnmapIoRegion(KProcessAddress dst_address, KPhysicalAddress phys_addr, size_t size,
Svc::MemoryMapping mapping) {
R_RETURN(m_page_table.UnmapIoRegion(dst_address, phys_addr, size, mapping));
}
Result MapStatic(KPhysicalAddress phys_addr, size_t size, KMemoryPermission perm) {
R_RETURN(m_page_table.MapStatic(phys_addr, size, perm));
}
Result MapRegion(KMemoryRegionType region_type, KMemoryPermission perm) {
R_RETURN(m_page_table.MapRegion(region_type, perm));
}
Result MapInsecureMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.MapInsecureMemory(address, size));
}
Result UnmapInsecureMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnmapInsecureMemory(address, size));
}
Result MapPageGroup(KProcessAddress addr, const KPageGroup& pg, KMemoryState state,
KMemoryPermission perm) {
R_RETURN(m_page_table.MapPageGroup(addr, pg, state, perm));
}
Result UnmapPageGroup(KProcessAddress address, const KPageGroup& pg, KMemoryState state) {
R_RETURN(m_page_table.UnmapPageGroup(address, pg, state));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, size_t alignment,
KPhysicalAddress phys_addr, KMemoryState state, KMemoryPermission perm) {
R_RETURN(m_page_table.MapPages(out_addr, num_pages, alignment, phys_addr, state, perm));
}
Result MapPages(KProcessAddress* out_addr, size_t num_pages, KMemoryState state,
KMemoryPermission perm) {
R_RETURN(m_page_table.MapPages(out_addr, num_pages, state, perm));
}
Result MapPages(KProcessAddress address, size_t num_pages, KMemoryState state,
KMemoryPermission perm) {
R_RETURN(m_page_table.MapPages(address, num_pages, state, perm));
}
Result UnmapPages(KProcessAddress addr, size_t num_pages, KMemoryState state) {
R_RETURN(m_page_table.UnmapPages(addr, num_pages, state));
}
Result MakeAndOpenPageGroup(KPageGroup* out, KProcessAddress address, size_t num_pages,
KMemoryState state_mask, KMemoryState state,
KMemoryPermission perm_mask, KMemoryPermission perm,
KMemoryAttribute attr_mask, KMemoryAttribute attr) {
R_RETURN(m_page_table.MakeAndOpenPageGroup(out, address, num_pages, state_mask, state,
perm_mask, perm, attr_mask, attr));
}
Result InvalidateProcessDataCache(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.InvalidateProcessDataCache(address, size));
}
Result ReadDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.ReadDebugMemory(dst_address, src_address, size));
}
Result ReadDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
KMemoryState state) {
R_RETURN(m_page_table.ReadDebugIoMemory(dst_address, src_address, size, state));
}
Result WriteDebugMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size) {
R_RETURN(m_page_table.WriteDebugMemory(dst_address, src_address, size));
}
Result WriteDebugIoMemory(KProcessAddress dst_address, KProcessAddress src_address, size_t size,
KMemoryState state) {
R_RETURN(m_page_table.WriteDebugIoMemory(dst_address, src_address, size, state));
}
Result LockForMapDeviceAddressSpace(bool* out_is_io, KProcessAddress address, size_t size,
KMemoryPermission perm, bool is_aligned, bool check_heap) {
R_RETURN(m_page_table.LockForMapDeviceAddressSpace(out_is_io, address, size, perm,
is_aligned, check_heap));
}
Result LockForUnmapDeviceAddressSpace(KProcessAddress address, size_t size, bool check_heap) {
R_RETURN(m_page_table.LockForUnmapDeviceAddressSpace(address, size, check_heap));
}
Result UnlockForDeviceAddressSpace(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnlockForDeviceAddressSpace(address, size));
}
Result UnlockForDeviceAddressSpacePartialMap(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnlockForDeviceAddressSpacePartialMap(address, size));
}
Result OpenMemoryRangeForMapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
KProcessAddress address, size_t size,
KMemoryPermission perm, bool is_aligned) {
R_RETURN(m_page_table.OpenMemoryRangeForMapDeviceAddressSpace(out, address, size, perm,
is_aligned));
}
Result OpenMemoryRangeForUnmapDeviceAddressSpace(KPageTableBase::MemoryRange* out,
KProcessAddress address, size_t size) {
R_RETURN(m_page_table.OpenMemoryRangeForUnmapDeviceAddressSpace(out, address, size));
}
Result LockForIpcUserBuffer(KPhysicalAddress* out, KProcessAddress address, size_t size) {
R_RETURN(m_page_table.LockForIpcUserBuffer(out, address, size));
}
Result UnlockForIpcUserBuffer(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnlockForIpcUserBuffer(address, size));
}
Result LockForTransferMemory(KPageGroup* out, KProcessAddress address, size_t size,
KMemoryPermission perm) {
R_RETURN(m_page_table.LockForTransferMemory(out, address, size, perm));
}
Result UnlockForTransferMemory(KProcessAddress address, size_t size, const KPageGroup& pg) {
R_RETURN(m_page_table.UnlockForTransferMemory(address, size, pg));
}
Result LockForCodeMemory(KPageGroup* out, KProcessAddress address, size_t size) {
R_RETURN(m_page_table.LockForCodeMemory(out, address, size));
}
Result UnlockForCodeMemory(KProcessAddress address, size_t size, const KPageGroup& pg) {
R_RETURN(m_page_table.UnlockForCodeMemory(address, size, pg));
}
Result OpenMemoryRangeForProcessCacheOperation(KPageTableBase::MemoryRange* out,
KProcessAddress address, size_t size) {
R_RETURN(m_page_table.OpenMemoryRangeForProcessCacheOperation(out, address, size));
}
Result CopyMemoryFromLinearToUser(KProcessAddress dst_addr, size_t size,
KProcessAddress src_addr, KMemoryState src_state_mask,
KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
R_RETURN(m_page_table.CopyMemoryFromLinearToUser(dst_addr, size, src_addr, src_state_mask,
src_state, src_test_perm, src_attr_mask,
src_attr));
}
Result CopyMemoryFromLinearToKernel(void* dst_addr, size_t size, KProcessAddress src_addr,
KMemoryState src_state_mask, KMemoryState src_state,
KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
R_RETURN(m_page_table.CopyMemoryFromLinearToKernel(dst_addr, size, src_addr, src_state_mask,
src_state, src_test_perm, src_attr_mask,
src_attr));
}
Result CopyMemoryFromUserToLinear(KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state,
KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
KProcessAddress src_addr) {
R_RETURN(m_page_table.CopyMemoryFromUserToLinear(dst_addr, size, dst_state_mask, dst_state,
dst_test_perm, dst_attr_mask, dst_attr,
src_addr));
}
Result CopyMemoryFromKernelToLinear(KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state,
KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
void* src_addr) {
R_RETURN(m_page_table.CopyMemoryFromKernelToLinear(dst_addr, size, dst_state_mask,
dst_state, dst_test_perm, dst_attr_mask,
dst_attr, src_addr));
}
Result CopyMemoryFromHeapToHeap(KProcessPageTable& dst_page_table, KProcessAddress dst_addr,
size_t size, KMemoryState dst_state_mask,
KMemoryState dst_state, KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr,
KProcessAddress src_addr, KMemoryState src_state_mask,
KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
R_RETURN(m_page_table.CopyMemoryFromHeapToHeap(
dst_page_table.m_page_table, dst_addr, size, dst_state_mask, dst_state, dst_test_perm,
dst_attr_mask, dst_attr, src_addr, src_state_mask, src_state, src_test_perm,
src_attr_mask, src_attr));
}
Result CopyMemoryFromHeapToHeapWithoutCheckDestination(
KProcessPageTable& dst_page_table, KProcessAddress dst_addr, size_t size,
KMemoryState dst_state_mask, KMemoryState dst_state, KMemoryPermission dst_test_perm,
KMemoryAttribute dst_attr_mask, KMemoryAttribute dst_attr, KProcessAddress src_addr,
KMemoryState src_state_mask, KMemoryState src_state, KMemoryPermission src_test_perm,
KMemoryAttribute src_attr_mask, KMemoryAttribute src_attr) {
R_RETURN(m_page_table.CopyMemoryFromHeapToHeapWithoutCheckDestination(
dst_page_table.m_page_table, dst_addr, size, dst_state_mask, dst_state, dst_test_perm,
dst_attr_mask, dst_attr, src_addr, src_state_mask, src_state, src_test_perm,
src_attr_mask, src_attr));
}
Result SetupForIpc(KProcessAddress* out_dst_addr, size_t size, KProcessAddress src_addr,
KProcessPageTable& src_page_table, KMemoryPermission test_perm,
KMemoryState dst_state, bool send) {
R_RETURN(m_page_table.SetupForIpc(out_dst_addr, size, src_addr, src_page_table.m_page_table,
test_perm, dst_state, send));
}
Result CleanupForIpcServer(KProcessAddress address, size_t size, KMemoryState dst_state) {
R_RETURN(m_page_table.CleanupForIpcServer(address, size, dst_state));
}
Result CleanupForIpcClient(KProcessAddress address, size_t size, KMemoryState dst_state) {
R_RETURN(m_page_table.CleanupForIpcClient(address, size, dst_state));
}
Result MapPhysicalMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.MapPhysicalMemory(address, size));
}
Result UnmapPhysicalMemory(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnmapPhysicalMemory(address, size));
}
Result MapPhysicalMemoryUnsafe(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.MapPhysicalMemoryUnsafe(address, size));
}
Result UnmapPhysicalMemoryUnsafe(KProcessAddress address, size_t size) {
R_RETURN(m_page_table.UnmapPhysicalMemoryUnsafe(address, size));
}
Result UnmapProcessMemory(KProcessAddress dst_address, size_t size,
KProcessPageTable& src_page_table, KProcessAddress src_address) {
R_RETURN(m_page_table.UnmapProcessMemory(dst_address, size, src_page_table.m_page_table,
src_address));
}
bool GetPhysicalAddress(KPhysicalAddress* out, KProcessAddress address) {
return m_page_table.GetPhysicalAddress(out, address);
}
bool Contains(KProcessAddress addr, size_t size) const {
return m_page_table.Contains(addr, size);
}
bool IsInAliasRegion(KProcessAddress addr, size_t size) const {
return m_page_table.IsInAliasRegion(addr, size);
}
bool IsInHeapRegion(KProcessAddress addr, size_t size) const {
return m_page_table.IsInHeapRegion(addr, size);
}
bool IsInUnsafeAliasRegion(KProcessAddress addr, size_t size) const {
return m_page_table.IsInUnsafeAliasRegion(addr, size);
}
bool CanContain(KProcessAddress addr, size_t size, KMemoryState state) const {
return m_page_table.CanContain(addr, size, state);
}
KProcessAddress GetAddressSpaceStart() const {
return m_page_table.GetAddressSpaceStart();
}
KProcessAddress GetHeapRegionStart() const {
return m_page_table.GetHeapRegionStart();
}
KProcessAddress GetAliasRegionStart() const {
return m_page_table.GetAliasRegionStart();
}
KProcessAddress GetStackRegionStart() const {
return m_page_table.GetStackRegionStart();
}
KProcessAddress GetKernelMapRegionStart() const {
return m_page_table.GetKernelMapRegionStart();
}
KProcessAddress GetCodeRegionStart() const {
return m_page_table.GetCodeRegionStart();
}
KProcessAddress GetAliasCodeRegionStart() const {
return m_page_table.GetAliasCodeRegionStart();
}
size_t GetAddressSpaceSize() const {
return m_page_table.GetAddressSpaceSize();
}
size_t GetHeapRegionSize() const {
return m_page_table.GetHeapRegionSize();
}
size_t GetAliasRegionSize() const {
return m_page_table.GetAliasRegionSize();
}
size_t GetStackRegionSize() const {
return m_page_table.GetStackRegionSize();
}
size_t GetKernelMapRegionSize() const {
return m_page_table.GetKernelMapRegionSize();
}
size_t GetCodeRegionSize() const {
return m_page_table.GetCodeRegionSize();
}
size_t GetAliasCodeRegionSize() const {
return m_page_table.GetAliasCodeRegionSize();
}
size_t GetNormalMemorySize() const {
return m_page_table.GetNormalMemorySize();
}
size_t GetCodeSize() const {
return m_page_table.GetCodeSize();
}
size_t GetCodeDataSize() const {
return m_page_table.GetCodeDataSize();
}
size_t GetAliasCodeSize() const {
return m_page_table.GetAliasCodeSize();
}
size_t GetAliasCodeDataSize() const {
return m_page_table.GetAliasCodeDataSize();
}
u32 GetAllocateOption() const {
return m_page_table.GetAllocateOption();
}
u32 GetAddressSpaceWidth() const {
return m_page_table.GetAddressSpaceWidth();
}
KPhysicalAddress GetHeapPhysicalAddress(KVirtualAddress address) {
return m_page_table.GetHeapPhysicalAddress(address);
}
u8* GetHeapVirtualPointer(KPhysicalAddress address) {
return m_page_table.GetHeapVirtualPointer(address);
}
KVirtualAddress GetHeapVirtualAddress(KPhysicalAddress address) {
return m_page_table.GetHeapVirtualAddress(address);
}
KBlockInfoManager* GetBlockInfoManager() {
return m_page_table.GetBlockInfoManager();
}
KPageTable& GetBasePageTable() {
return m_page_table;
}
const KPageTable& GetBasePageTable() const {
return m_page_table;
}
};
} // namespace Kernel

2
src/core/hle/kernel/k_server_session.cpp
View file

@ -383,7 +383,7 @@ Result KServerSession::SendReply(bool is_hle) {
if (event != nullptr) {
// // Get the client process/page table.
// KProcess *client_process = client_thread->GetOwnerProcess();
// KPageTable *client_page_table = std::addressof(client_process->PageTable());
// KProcessPageTable *client_page_table = std::addressof(client_process->PageTable());
// // If we need to, reply with an async error.
// if (R_FAILED(client_result)) {

2
src/core/hle/kernel/k_system_resource.cpp
View file

@ -40,7 +40,7 @@ Result KSecureSystemResource::Initialize(size_t size, KResourceLimit* resource_l
// Get resource pointer.
KPhysicalAddress resource_paddr =
KPageTable::GetHeapPhysicalAddress(m_kernel.MemoryLayout(), m_resource_address);
KPageTable::GetHeapPhysicalAddress(m_kernel, m_resource_address);
auto* resource =
m_kernel.System().DeviceMemory().GetPointer<KPageTableManager::RefCount>(resource_paddr);

4
src/core/hle/kernel/k_thread_local_page.cpp
View file

@ -37,8 +37,8 @@ Result KThreadLocalPage::Initialize(KernelCore& kernel, KProcess* process) {
Result KThreadLocalPage::Finalize() {
// Get the physical address of the page.
const KPhysicalAddress phys_addr = m_owner->GetPageTable().GetPhysicalAddr(m_virt_addr);
ASSERT(phys_addr);
KPhysicalAddress phys_addr{};
ASSERT(m_owner->GetPageTable().GetPhysicalAddress(std::addressof(phys_addr), m_virt_addr));
// Unmap the page.
R_TRY(m_owner->GetPageTable().UnmapPages(this->GetAddress(), 1, KMemoryState::ThreadLocal));

389
src/core/hle/kernel/process_capability.cpp
View file

@ -1,389 +0,0 @@
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <bit>
#include "common/bit_util.h"
#include "common/logging/log.h"
#include "core/hle/kernel/k_handle_table.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/process_capability.h"
#include "core/hle/kernel/svc_results.h"
namespace Kernel {
namespace {
// clang-format off
// Shift offsets for kernel capability types.
enum : u32 {
CapabilityOffset_PriorityAndCoreNum = 3,
CapabilityOffset_Syscall = 4,
CapabilityOffset_MapPhysical = 6,
CapabilityOffset_MapIO = 7,
CapabilityOffset_MapRegion = 10,
CapabilityOffset_Interrupt = 11,
CapabilityOffset_ProgramType = 13,
CapabilityOffset_KernelVersion = 14,
CapabilityOffset_HandleTableSize = 15,
CapabilityOffset_Debug = 16,
};
// Combined mask of all parameters that may be initialized only once.
constexpr u32 InitializeOnceMask = (1U << CapabilityOffset_PriorityAndCoreNum) |
(1U << CapabilityOffset_ProgramType) |
(1U << CapabilityOffset_KernelVersion) |
(1U << CapabilityOffset_HandleTableSize) |
(1U << CapabilityOffset_Debug);
// Packed kernel version indicating 10.4.0
constexpr u32 PackedKernelVersion = 0x520000;
// Indicates possible types of capabilities that can be specified.
enum class CapabilityType : u32 {
Unset = 0U,
PriorityAndCoreNum = (1U << CapabilityOffset_PriorityAndCoreNum) - 1,
Syscall = (1U << CapabilityOffset_Syscall) - 1,
MapPhysical = (1U << CapabilityOffset_MapPhysical) - 1,
MapIO = (1U << CapabilityOffset_MapIO) - 1,
MapRegion = (1U << CapabilityOffset_MapRegion) - 1,
Interrupt = (1U << CapabilityOffset_Interrupt) - 1,
ProgramType = (1U << CapabilityOffset_ProgramType) - 1,
KernelVersion = (1U << CapabilityOffset_KernelVersion) - 1,
HandleTableSize = (1U << CapabilityOffset_HandleTableSize) - 1,
Debug = (1U << CapabilityOffset_Debug) - 1,
Ignorable = 0xFFFFFFFFU,
};
// clang-format on
constexpr CapabilityType GetCapabilityType(u32 value) {
return static_cast<CapabilityType>((~value & (value + 1)) - 1);
}
u32 GetFlagBitOffset(CapabilityType type) {
const auto value = static_cast<u32>(type);
return static_cast<u32>(Common::BitSize<u32>() - static_cast<u32>(std::countl_zero(value)));
}
} // Anonymous namespace
Result ProcessCapabilities::InitializeForKernelProcess(const u32* capabilities,
std::size_t num_capabilities,
KPageTable& page_table) {
Clear();
// Allow all cores and priorities.
core_mask = 0xF;
priority_mask = 0xFFFFFFFFFFFFFFFF;
kernel_version = PackedKernelVersion;
return ParseCapabilities(capabilities, num_capabilities, page_table);
}
Result ProcessCapabilities::InitializeForUserProcess(const u32* capabilities,
std::size_t num_capabilities,
KPageTable& page_table) {
Clear();
return ParseCapabilities(capabilities, num_capabilities, page_table);
}
void ProcessCapabilities::InitializeForMetadatalessProcess() {
// Allow all cores and priorities
core_mask = 0xF;
priority_mask = 0xFFFFFFFFFFFFFFFF;
kernel_version = PackedKernelVersion;
// Allow all system calls and interrupts.
svc_capabilities.set();
interrupt_capabilities.set();
// Allow using the maximum possible amount of handles
handle_table_size = static_cast<s32>(KHandleTable::MaxTableSize);
// Allow all debugging capabilities.
is_debuggable = true;
can_force_debug = true;
}
Result ProcessCapabilities::ParseCapabilities(const u32* capabilities, std::size_t num_capabilities,
KPageTable& page_table) {
u32 set_flags = 0;
u32 set_svc_bits = 0;
for (std::size_t i = 0; i < num_capabilities; ++i) {
const u32 descriptor = capabilities[i];
const auto type = GetCapabilityType(descriptor);
if (type == CapabilityType::MapPhysical) {
i++;
// The MapPhysical type uses two descriptor flags for its parameters.
// If there's only one, then there's a problem.
if (i >= num_capabilities) {
LOG_ERROR(Kernel, "Invalid combination! i={}", i);
return ResultInvalidCombination;
}
const auto size_flags = capabilities[i];
if (GetCapabilityType(size_flags) != CapabilityType::MapPhysical) {
LOG_ERROR(Kernel, "Invalid capability type! size_flags={}", size_flags);
return ResultInvalidCombination;
}
const auto result = HandleMapPhysicalFlags(descriptor, size_flags, page_table);
if (result.IsError()) {
LOG_ERROR(Kernel, "Failed to map physical flags! descriptor={}, size_flags={}",
descriptor, size_flags);
return result;
}
} else {
const auto result =
ParseSingleFlagCapability(set_flags, set_svc_bits, descriptor, page_table);
if (result.IsError()) {
LOG_ERROR(
Kernel,
"Failed to parse capability flag! set_flags={}, set_svc_bits={}, descriptor={}",
set_flags, set_svc_bits, descriptor);
return result;
}
}
}
return ResultSuccess;
}
Result ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits, u32 flag,
KPageTable& page_table) {
const auto type = GetCapabilityType(flag);
if (type == CapabilityType::Unset) {
return ResultInvalidArgument;
}
// Bail early on ignorable entries, as one would expect,
// ignorable descriptors can be ignored.
if (type == CapabilityType::Ignorable) {
return ResultSuccess;
}
// Ensure that the give flag hasn't already been initialized before.
// If it has been, then bail.
const u32 flag_length = GetFlagBitOffset(type);
const u32 set_flag = 1U << flag_length;
if ((set_flag & set_flags & InitializeOnceMask) != 0) {
LOG_ERROR(Kernel,
"Attempted to initialize flags that may only be initialized once. set_flags={}",
set_flags);
return ResultInvalidCombination;
}
set_flags |= set_flag;
switch (type) {
case CapabilityType::PriorityAndCoreNum:
return HandlePriorityCoreNumFlags(flag);
case CapabilityType::Syscall:
return HandleSyscallFlags(set_svc_bits, flag);
case CapabilityType::MapIO:
return HandleMapIOFlags(flag, page_table);
case CapabilityType::MapRegion:
return HandleMapRegionFlags(flag, page_table);
case CapabilityType::Interrupt:
return HandleInterruptFlags(flag);
case CapabilityType::ProgramType:
return HandleProgramTypeFlags(flag);
case CapabilityType::KernelVersion:
return HandleKernelVersionFlags(flag);
case CapabilityType::HandleTableSize:
return HandleHandleTableFlags(flag);
case CapabilityType::Debug:
return HandleDebugFlags(flag);
default:
break;
}
LOG_ERROR(Kernel, "Invalid capability type! type={}", type);
return ResultInvalidArgument;
}
void ProcessCapabilities::Clear() {
svc_capabilities.reset();
interrupt_capabilities.reset();
core_mask = 0;
priority_mask = 0;
handle_table_size = 0;
kernel_version = 0;
program_type = ProgramType::SysModule;
is_debuggable = false;
can_force_debug = false;
}
Result ProcessCapabilities::HandlePriorityCoreNumFlags(u32 flags) {
if (priority_mask != 0 || core_mask != 0) {
LOG_ERROR(Kernel, "Core or priority mask are not zero! priority_mask={}, core_mask={}",
priority_mask, core_mask);
return ResultInvalidArgument;
}
const u32 core_num_min = (flags >> 16) & 0xFF;
const u32 core_num_max = (flags >> 24) & 0xFF;
if (core_num_min > core_num_max) {
LOG_ERROR(Kernel, "Core min is greater than core max! core_num_min={}, core_num_max={}",
core_num_min, core_num_max);
return ResultInvalidCombination;
}
const u32 priority_min = (flags >> 10) & 0x3F;
const u32 priority_max = (flags >> 4) & 0x3F;
if (priority_min > priority_max) {
LOG_ERROR(Kernel,
"Priority min is greater than priority max! priority_min={}, priority_max={}",
core_num_min, priority_max);
return ResultInvalidCombination;
}
// The switch only has 4 usable cores.
if (core_num_max >= 4) {
LOG_ERROR(Kernel, "Invalid max cores specified! core_num_max={}", core_num_max);
return ResultInvalidCoreId;
}
const auto make_mask = [](u64 min, u64 max) {
const u64 range = max - min + 1;
const u64 mask = (1ULL << range) - 1;
return mask << min;
};
core_mask = make_mask(core_num_min, core_num_max);
priority_mask = make_mask(priority_min, priority_max);
return ResultSuccess;
}
Result ProcessCapabilities::HandleSyscallFlags(u32& set_svc_bits, u32 flags) {
const u32 index = flags >> 29;
const u32 svc_bit = 1U << index;
// If we've already set this svc before, bail.
if ((set_svc_bits & svc_bit) != 0) {
return ResultInvalidCombination;
}
set_svc_bits |= svc_bit;
const u32 svc_mask = (flags >> 5) & 0xFFFFFF;
for (u32 i = 0; i < 24; ++i) {
const u32 svc_number = index * 24 + i;
if ((svc_mask & (1U << i)) == 0) {
continue;
}
svc_capabilities[svc_number] = true;
}
return ResultSuccess;
}
Result ProcessCapabilities::HandleMapPhysicalFlags(u32 flags, u32 size_flags,
KPageTable& page_table) {
// TODO(Lioncache): Implement once the memory manager can handle this.
return ResultSuccess;
}
Result ProcessCapabilities::HandleMapIOFlags(u32 flags, KPageTable& page_table) {
// TODO(Lioncache): Implement once the memory manager can handle this.
return ResultSuccess;
}
Result ProcessCapabilities::HandleMapRegionFlags(u32 flags, KPageTable& page_table) {
// TODO(Lioncache): Implement once the memory manager can handle this.
return ResultSuccess;
}
Result ProcessCapabilities::HandleInterruptFlags(u32 flags) {
constexpr u32 interrupt_ignore_value = 0x3FF;
const u32 interrupt0 = (flags >> 12) & 0x3FF;
const u32 interrupt1 = (flags >> 22) & 0x3FF;
for (u32 interrupt : {interrupt0, interrupt1}) {
if (interrupt == interrupt_ignore_value) {
continue;
}
// NOTE:
// This should be checking a generic interrupt controller value
// as part of the calculation, however, given we don't currently
// emulate that, it's sufficient to mark every interrupt as defined.
if (interrupt >= interrupt_capabilities.size()) {
LOG_ERROR(Kernel, "Process interrupt capability is out of range! svc_number={}",
interrupt);
return ResultOutOfRange;
}
interrupt_capabilities[interrupt] = true;
}
return ResultSuccess;
}
Result ProcessCapabilities::HandleProgramTypeFlags(u32 flags) {
const u32 reserved = flags >> 17;
if (reserved != 0) {
LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
return ResultReservedUsed;
}
program_type = static_cast<ProgramType>((flags >> 14) & 0b111);
return ResultSuccess;
}
Result ProcessCapabilities::HandleKernelVersionFlags(u32 flags) {
// Yes, the internal member variable is checked in the actual kernel here.
// This might look odd for options that are only allowed to be initialized
// just once, however the kernel has a separate initialization function for
// kernel processes and userland processes. The kernel variant sets this
// member variable ahead of time.
const u32 major_version = kernel_version >> 19;
if (major_version != 0 || flags < 0x80000) {
LOG_ERROR(Kernel,
"Kernel version is non zero or flags are too small! major_version={}, flags={}",
major_version, flags);
return ResultInvalidArgument;
}
kernel_version = flags;
return ResultSuccess;
}
Result ProcessCapabilities::HandleHandleTableFlags(u32 flags) {
const u32 reserved = flags >> 26;
if (reserved != 0) {
LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
return ResultReservedUsed;
}
handle_table_size = static_cast<s32>((flags >> 16) & 0x3FF);
return ResultSuccess;
}
Result ProcessCapabilities::HandleDebugFlags(u32 flags) {
const u32 reserved = flags >> 19;
if (reserved != 0) {
LOG_ERROR(Kernel, "Reserved value is non-zero! reserved={}", reserved);
return ResultReservedUsed;
}
is_debuggable = (flags & 0x20000) != 0;
can_force_debug = (flags & 0x40000) != 0;
return ResultSuccess;
}
} // namespace Kernel

266
src/core/hle/kernel/process_capability.h
View file

@ -1,266 +0,0 @@
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <bitset>
#include "common/common_types.h"
union Result;
namespace Kernel {
class KPageTable;
/// The possible types of programs that may be indicated
/// by the program type capability descriptor.
enum class ProgramType {
SysModule,
Application,
Applet,
};
/// Handles kernel capability descriptors that are provided by
/// application metadata. These descriptors provide information
/// that alters certain parameters for kernel process instance
/// that will run said application (or applet).
///
/// Capabilities are a sequence of flag descriptors, that indicate various
/// configurations and constraints for a particular process.
///
/// Flag types are indicated by a sequence of set low bits. E.g. the
/// types are indicated with the low bits as follows (where x indicates "don't care"):
///
/// - Priority and core mask : 0bxxxxxxxxxxxx0111
/// - Allowed service call mask: 0bxxxxxxxxxxx01111
/// - Map physical memory : 0bxxxxxxxxx0111111
/// - Map IO memory : 0bxxxxxxxx01111111
/// - Interrupts : 0bxxxx011111111111
/// - Application type : 0bxx01111111111111
/// - Kernel version : 0bx011111111111111
/// - Handle table size : 0b0111111111111111
/// - Debugger flags : 0b1111111111111111
///
/// These are essentially a bit offset subtracted by 1 to create a mask.
/// e.g. The first entry in the above list is simply bit 3 (value 8 -> 0b1000)
/// subtracted by one (7 -> 0b0111)
///
/// An example of a bit layout (using the map physical layout):
/// <example>
/// The MapPhysical type indicates a sequence entry pair of:
///
/// [initial, memory_flags], where:
///
/// initial:
/// bits:
/// 7-24: Starting page to map memory at.
/// 25 : Indicates if the memory should be mapped as read only.
///
/// memory_flags:
/// bits:
/// 7-20 : Number of pages to map
/// 21-25: Seems to be reserved (still checked against though)
/// 26 : Whether or not the memory being mapped is IO memory, or physical memory
/// </example>
///
class ProcessCapabilities {
public:
using InterruptCapabilities = std::bitset<1024>;
using SyscallCapabilities = std::bitset<192>;
ProcessCapabilities() = default;
ProcessCapabilities(const ProcessCapabilities&) = delete;
ProcessCapabilities(ProcessCapabilities&&) = default;
ProcessCapabilities& operator=(const ProcessCapabilities&) = delete;
ProcessCapabilities& operator=(ProcessCapabilities&&) = default;
/// Initializes this process capabilities instance for a kernel process.
///
/// @param capabilities The capabilities to parse
/// @param num_capabilities The number of capabilities to parse.
/// @param page_table The memory manager to use for handling any mapping-related
/// operations (such as mapping IO memory, etc).
///
/// @returns ResultSuccess if this capabilities instance was able to be initialized,
/// otherwise, an error code upon failure.
///
Result InitializeForKernelProcess(const u32* capabilities, std::size_t num_capabilities,
KPageTable& page_table);
/// Initializes this process capabilities instance for a userland process.
///
/// @param capabilities The capabilities to parse.
/// @param num_capabilities The total number of capabilities to parse.
/// @param page_table The memory manager to use for handling any mapping-related
/// operations (such as mapping IO memory, etc).
///
/// @returns ResultSuccess if this capabilities instance was able to be initialized,
/// otherwise, an error code upon failure.
///
Result InitializeForUserProcess(const u32* capabilities, std::size_t num_capabilities,
KPageTable& page_table);
/// Initializes this process capabilities instance for a process that does not
/// have any metadata to parse.
///
/// This is necessary, as we allow running raw executables, and the internal
/// kernel process capabilities also determine what CPU cores the process is
/// allowed to run on, and what priorities are allowed for threads. It also
/// determines the max handle table size, what the program type is, whether or
/// not the process can be debugged, or whether it's possible for a process to
/// forcibly debug another process.
///
/// Given the above, this essentially enables all capabilities across the board
/// for the process. It allows the process to:
///
/// - Run on any core
/// - Use any thread priority
/// - Use the maximum amount of handles a process is allowed to.
/// - Be debuggable
/// - Forcibly debug other processes.
///
/// Note that this is not a behavior that the kernel allows a process to do via
/// a single function like this. This is yuzu-specific behavior to handle
/// executables with no capability descriptors whatsoever to derive behavior from.
/// It being yuzu-specific is why this is also not the default behavior and not
/// done by default in the constructor.
///
void InitializeForMetadatalessProcess();
/// Gets the allowable core mask
u64 GetCoreMask() const {
return core_mask;
}
/// Gets the allowable priority mask
u64 GetPriorityMask() const {
return priority_mask;
}
/// Gets the SVC access permission bits
const SyscallCapabilities& GetServiceCapabilities() const {
return svc_capabilities;
}
/// Gets the valid interrupt bits.
const InterruptCapabilities& GetInterruptCapabilities() const {
return interrupt_capabilities;
}
/// Gets the program type for this process.
ProgramType GetProgramType() const {
return program_type;
}
/// Gets the number of total allowable handles for the process' handle table.
s32 GetHandleTableSize() const {
return handle_table_size;
}
/// Gets the kernel version value.
u32 GetKernelVersion() const {
return kernel_version;
}
/// Whether or not this process can be debugged.
bool IsDebuggable() const {
return is_debuggable;
}
/// Whether or not this process can forcibly debug another
/// process, even if that process is not considered debuggable.
bool CanForceDebug() const {
return can_force_debug;
}
private:
/// Attempts to parse a given sequence of capability descriptors.
///
/// @param capabilities The sequence of capability descriptors to parse.
/// @param num_capabilities The number of descriptors within the given sequence.
/// @param page_table The memory manager that will perform any memory
/// mapping if necessary.
///
/// @return ResultSuccess if no errors occur, otherwise an error code.
///
Result ParseCapabilities(const u32* capabilities, std::size_t num_capabilities,
KPageTable& page_table);
/// Attempts to parse a capability descriptor that is only represented by a
/// single flag set.
///
/// @param set_flags Running set of flags that are used to catch
/// flags being initialized more than once when they shouldn't be.
/// @param set_svc_bits Running set of bits representing the allowed supervisor calls mask.
/// @param flag The flag to attempt to parse.
/// @param page_table The memory manager that will perform any memory
/// mapping if necessary.
///
/// @return ResultSuccess if no errors occurred, otherwise an error code.
///
Result ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits, u32 flag,
KPageTable& page_table);
/// Clears the internal state of this process capability instance. Necessary,
/// to have a sane starting point due to us allowing running executables without
/// configuration metadata. We assume a process is not going to have metadata,
/// and if it turns out that the process does, in fact, have metadata, then
/// we attempt to parse it. Thus, we need this to reset data members back to
/// a good state.
///
/// DO NOT ever make this a public member function. This isn't an invariant
/// anything external should depend upon (and if anything comes to rely on it,
/// you should immediately be questioning the design of that thing, not this
/// class. If the kernel itself can run without depending on behavior like that,
/// then so can yuzu).
///
void Clear();
/// Handles flags related to the priority and core number capability flags.
Result HandlePriorityCoreNumFlags(u32 flags);
/// Handles flags related to determining the allowable SVC mask.
Result HandleSyscallFlags(u32& set_svc_bits, u32 flags);
/// Handles flags related to mapping physical memory pages.
Result HandleMapPhysicalFlags(u32 flags, u32 size_flags, KPageTable& page_table);
/// Handles flags related to mapping IO pages.
Result HandleMapIOFlags(u32 flags, KPageTable& page_table);
/// Handles flags related to mapping physical memory regions.
Result HandleMapRegionFlags(u32 flags, KPageTable& page_table);
/// Handles flags related to the interrupt capability flags.
Result HandleInterruptFlags(u32 flags);
/// Handles flags related to the program type.
Result HandleProgramTypeFlags(u32 flags);
/// Handles flags related to the handle table size.
Result HandleHandleTableFlags(u32 flags);
/// Handles flags related to the kernel version capability flags.
Result HandleKernelVersionFlags(u32 flags);
/// Handles flags related to debug-specific capabilities.
Result HandleDebugFlags(u32 flags);
SyscallCapabilities svc_capabilities;
InterruptCapabilities interrupt_capabilities;
u64 core_mask = 0;
u64 priority_mask = 0;
s32 handle_table_size = 0;
u32 kernel_version = 0;
ProgramType program_type = ProgramType::SysModule;
bool is_debuggable = false;
bool can_force_debug = false;
};
} // namespace Kernel

6
src/core/hle/kernel/svc/svc_memory.cpp
View file

@ -29,7 +29,8 @@ constexpr bool IsValidAddressRange(u64 address, u64 size) {
// Helper function that performs the common sanity checks for svcMapMemory
// and svcUnmapMemory. This is doable, as both functions perform their sanitizing
// in the same order.
Result MapUnmapMemorySanityChecks(const KPageTable& manager, u64 dst_addr, u64 src_addr, u64 size) {
Result MapUnmapMemorySanityChecks(const KProcessPageTable& manager, u64 dst_addr, u64 src_addr,
u64 size) {
if (!Common::Is4KBAligned(dst_addr)) {
LOG_ERROR(Kernel_SVC, "Destination address is not aligned to 4KB, 0x{:016X}", dst_addr);
R_THROW(ResultInvalidAddress);
@ -123,7 +124,8 @@ Result SetMemoryAttribute(Core::System& system, u64 address, u64 size, u32 mask,
R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
// Set the memory attribute.
R_RETURN(page_table.SetMemoryAttribute(address, size, mask, attr));
R_RETURN(page_table.SetMemoryAttribute(address, size, static_cast<KMemoryAttribute>(mask),
static_cast<KMemoryAttribute>(attr)));
}
/// Maps a memory range into a different range.

9
src/core/hle/kernel/svc/svc_physical_memory.cpp
View file

@ -16,7 +16,14 @@ Result SetHeapSize(Core::System& system, u64* out_address, u64 size) {
R_UNLESS(size < MainMemorySizeMax, ResultInvalidSize);
// Set the heap size.
R_RETURN(GetCurrentProcess(system.Kernel()).GetPageTable().SetHeapSize(out_address, size));
KProcessAddress address{};
R_TRY(GetCurrentProcess(system.Kernel())
.GetPageTable()
.SetHeapSize(std::addressof(address), size));
// We succeeded.
*out_address = GetInteger(address);
R_SUCCEED();
}
/// Maps memory at a desired address

3
src/core/hle/kernel/svc/svc_process_memory.cpp
View file

@ -247,8 +247,7 @@ Result UnmapProcessCodeMemory(Core::System& system, Handle process_handle, u64 d
R_THROW(ResultInvalidCurrentMemory);
}
R_RETURN(page_table.UnmapCodeMemory(dst_address, src_address, size,
KPageTable::ICacheInvalidationStrategy::InvalidateAll));
R_RETURN(page_table.UnmapCodeMemory(dst_address, src_address, size));
}
Result SetProcessMemoryPermission64(Core::System& system, Handle process_handle, uint64_t address,

8
src/core/hle/kernel/svc/svc_query_memory.cpp
View file

@ -31,12 +31,12 @@ Result QueryProcessMemory(Core::System& system, uint64_t out_memory_info, PageIn
}
auto& current_memory{GetCurrentMemory(system.Kernel())};
const auto memory_info{process->GetPageTable().QueryInfo(address).GetSvcMemoryInfo()};
current_memory.WriteBlock(out_memory_info, std::addressof(memory_info), sizeof(memory_info));
KMemoryInfo mem_info;
R_TRY(process->GetPageTable().QueryInfo(std::addressof(mem_info), out_page_info, address));
//! This is supposed to be part of the QueryInfo call.
*out_page_info = {};
const auto svc_mem_info = mem_info.GetSvcMemoryInfo();
current_memory.WriteBlock(out_memory_info, std::addressof(svc_mem_info), sizeof(svc_mem_info));
R_SUCCEED();
}

31
src/core/hle/result.h
View file

@ -407,3 +407,34 @@ constexpr inline Result __TmpCurrentResultReference = ResultSuccess;
/// Evaluates a boolean expression, and succeeds if that expression is true.
#define R_SUCCEED_IF(expr) R_UNLESS(!(expr), ResultSuccess)
#define R_TRY_CATCH(res_expr) \
{ \
const auto R_CURRENT_RESULT = (res_expr); \
if (R_FAILED(R_CURRENT_RESULT)) { \
if (false)
#define R_END_TRY_CATCH \
else if (R_FAILED(R_CURRENT_RESULT)) { \
R_THROW(R_CURRENT_RESULT); \
} \
} \
}
#define R_CATCH_ALL() \
} \
else if (R_FAILED(R_CURRENT_RESULT)) { \
if (true)
#define R_CATCH(res_expr) \
} \
else if ((res_expr) == (R_CURRENT_RESULT)) { \
if (true)
#define R_CONVERT(catch_type, convert_type) \
R_CATCH(catch_type) { R_THROW(static_cast<Result>(convert_type)); }
#define R_CONVERT_ALL(convert_type) \
R_CATCH_ALL() { R_THROW(static_cast<Result>(convert_type)); }
#define R_ASSERT(res_expr) ASSERT(R_SUCCEEDED(res_expr))

45
src/core/hle/service/ldr/ldr.cpp
View file

@ -286,9 +286,14 @@ public:
rb.Push(ResultSuccess);
}
bool ValidateRegionForMap(Kernel::KPageTable& page_table, VAddr start, std::size_t size) const {
bool ValidateRegionForMap(Kernel::KProcessPageTable& page_table, VAddr start,
std::size_t size) const {
const std::size_t padding_size{page_table.GetNumGuardPages() * Kernel::PageSize};
const auto start_info{page_table.QueryInfo(start - 1)};
Kernel::KMemoryInfo start_info;
Kernel::Svc::PageInfo page_info;
R_ASSERT(
page_table.QueryInfo(std::addressof(start_info), std::addressof(page_info), start - 1));
if (start_info.GetState() != Kernel::KMemoryState::Free) {
return {};
@ -298,7 +303,9 @@ public:
return {};
}
const auto end_info{page_table.QueryInfo(start + size)};
Kernel::KMemoryInfo end_info;
R_ASSERT(page_table.QueryInfo(std::addressof(end_info), std::addressof(page_info),
start + size));
if (end_info.GetState() != Kernel::KMemoryState::Free) {
return {};
@ -307,7 +314,7 @@ public:
return (start + size + padding_size) <= (end_info.GetAddress() + end_info.GetSize());
}
Result GetAvailableMapRegion(Kernel::KPageTable& page_table, u64 size, VAddr& out_addr) {
Result GetAvailableMapRegion(Kernel::KProcessPageTable& page_table, u64 size, VAddr& out_addr) {
size = Common::AlignUp(size, Kernel::PageSize);
size += page_table.GetNumGuardPages() * Kernel::PageSize * 4;
@ -391,12 +398,8 @@ public:
if (bss_size) {
auto block_guard = detail::ScopeExit([&] {
page_table.UnmapCodeMemory(
addr + nro_size, bss_addr, bss_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange);
page_table.UnmapCodeMemory(
addr, nro_addr, nro_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange);
page_table.UnmapCodeMemory(addr + nro_size, bss_addr, bss_size);
page_table.UnmapCodeMemory(addr, nro_addr, nro_size);
});
const Result result{page_table.MapCodeMemory(addr + nro_size, bss_addr, bss_size)};
@ -578,21 +581,17 @@ public:
auto& page_table{system.ApplicationProcess()->GetPageTable()};
if (info.bss_size != 0) {
R_TRY(page_table.UnmapCodeMemory(
info.nro_address + info.text_size + info.ro_size + info.data_size, info.bss_address,
info.bss_size, Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size + info.ro_size +
info.data_size,
info.bss_address, info.bss_size));
}
R_TRY(page_table.UnmapCodeMemory(
info.nro_address + info.text_size + info.ro_size,
info.src_addr + info.text_size + info.ro_size, info.data_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
R_TRY(page_table.UnmapCodeMemory(
info.nro_address + info.text_size, info.src_addr + info.text_size, info.ro_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
R_TRY(page_table.UnmapCodeMemory(
info.nro_address, info.src_addr, info.text_size,
Kernel::KPageTable::ICacheInvalidationStrategy::InvalidateRange));
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size + info.ro_size,
info.src_addr + info.text_size + info.ro_size,
info.data_size));
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size,
info.src_addr + info.text_size, info.ro_size));
R_TRY(page_table.UnmapCodeMemory(info.nro_address, info.src_addr, info.text_size));
return ResultSuccess;
}

6
src/core/memory.cpp
View file

@ -41,7 +41,7 @@ struct Memory::Impl {
explicit Impl(Core::System& system_) : system{system_} {}
void SetCurrentPageTable(Kernel::KProcess& process, u32 core_id) {
current_page_table = &process.GetPageTable().PageTableImpl();
current_page_table = &process.GetPageTable().GetImpl();
current_page_table->fastmem_arena = system.DeviceMemory().buffer.VirtualBasePointer();
const std::size_t address_space_width = process.GetPageTable().GetAddressSpaceWidth();
@ -195,7 +195,7 @@ struct Memory::Impl {
bool WalkBlock(const Common::ProcessAddress addr, const std::size_t size, auto on_unmapped,
auto on_memory, auto on_rasterizer, auto increment) {
const auto& page_table = system.ApplicationProcess()->GetPageTable().PageTableImpl();
const auto& page_table = system.ApplicationProcess()->GetPageTable().GetImpl();
std::size_t remaining_size = size;
std::size_t page_index = addr >> YUZU_PAGEBITS;
std::size_t page_offset = addr & YUZU_PAGEMASK;
@ -826,7 +826,7 @@ void Memory::UnmapRegion(Common::PageTable& page_table, Common::ProcessAddress b
bool Memory::IsValidVirtualAddress(const Common::ProcessAddress vaddr) const {
const Kernel::KProcess& process = *system.ApplicationProcess();
const auto& page_table = process.GetPageTable().PageTableImpl();
const auto& page_table = process.GetPageTable().GetImpl();
const size_t page = vaddr >> YUZU_PAGEBITS;
if (page >= page_table.pointers.size()) {
return false;