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early-access version 1420

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pineappleEA 2021-02-06 23:05:49 +01:00
parent 7381de3435
commit 84e1d5b26b
13 changed files with 236 additions and 107 deletions
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2
README.md
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@ -1,7 +1,7 @@
yuzu emulator early access
=============
This is the source code for early-access 1419.
This is the source code for early-access 1420.
## Legal Notice

21
src/common/ring_buffer.h
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@ -19,15 +19,14 @@ namespace Common {
/// SPSC ring buffer
/// @tparam T Element type
/// @tparam capacity Number of slots in ring buffer
/// @tparam granularity Slot size in terms of number of elements
template <typename T, std::size_t capacity, std::size_t granularity = 1>
template <typename T, std::size_t capacity>
class RingBuffer {
/// A "slot" is made of `granularity` elements of `T`.
static constexpr std::size_t slot_size = granularity * sizeof(T);
/// A "slot" is made of a single `T`.
static constexpr std::size_t slot_size = sizeof(T);
// T must be safely memcpy-able and have a trivial default constructor.
static_assert(std::is_trivial_v<T>);
// Ensure capacity is sensible.
static_assert(capacity < std::numeric_limits<std::size_t>::max() / 2 / granularity);
static_assert(capacity < std::numeric_limits<std::size_t>::max() / 2);
static_assert((capacity & (capacity - 1)) == 0, "capacity must be a power of two");
// Ensure lock-free.
static_assert(std::atomic_size_t::is_always_lock_free);
@ -47,7 +46,7 @@ public:
const std::size_t second_copy = push_count - first_copy;
const char* in = static_cast<const char*>(new_slots);
std::memcpy(m_data.data() + pos * granularity, in, first_copy * slot_size);
std::memcpy(m_data.data() + pos, in, first_copy * slot_size);
in += first_copy * slot_size;
std::memcpy(m_data.data(), in, second_copy * slot_size);
@ -74,7 +73,7 @@ public:
const std::size_t second_copy = pop_count - first_copy;
char* out = static_cast<char*>(output);
std::memcpy(out, m_data.data() + pos * granularity, first_copy * slot_size);
std::memcpy(out, m_data.data() + pos, first_copy * slot_size);
out += first_copy * slot_size;
std::memcpy(out, m_data.data(), second_copy * slot_size);
@ -84,9 +83,9 @@ public:
}
std::vector<T> Pop(std::size_t max_slots = ~std::size_t(0)) {
std::vector<T> out(std::min(max_slots, capacity) * granularity);
const std::size_t count = Pop(out.data(), out.size() / granularity);
out.resize(count * granularity);
std::vector<T> out(std::min(max_slots, capacity));
const std::size_t count = Pop(out.data(), out.size());
out.resize(count);
return out;
}
@ -113,7 +112,7 @@ private:
alignas(128) std::atomic_size_t m_write_index{0};
#endif
std::array<T, granularity * capacity> m_data;
std::array<T, capacity> m_data;
};
} // namespace Common

1
src/core/CMakeLists.txt
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@ -173,6 +173,7 @@ add_library(core STATIC
hle/kernel/k_scheduler.h
hle/kernel/k_scheduler_lock.h
hle/kernel/k_scoped_lock.h
hle/kernel/k_scoped_resource_reservation.h
hle/kernel/k_scoped_scheduler_lock_and_sleep.h
hle/kernel/k_synchronization_object.cpp
hle/kernel/k_synchronization_object.h

68
src/core/hle/kernel/k_address_arbiter.cpp
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@ -118,9 +118,10 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
// Check the userspace value.
s32 user_value{};
R_UNLESS(UpdateIfEqual(system, std::addressof(user_value), addr, value, value + 1),
Svc::ResultInvalidCurrentMemory);
if (!UpdateIfEqual(system, &user_value, addr, value, value + 1)) {
LOG_ERROR(Kernel, "Invalid current memory!");
return Svc::ResultInvalidCurrentMemory;
}
if (user_value != value) {
return Svc::ResultInvalidState;
}
@ -146,25 +147,23 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
// Perform signaling.
s32 num_waiters{};
{
KScopedSchedulerLock sl(kernel);
[[maybe_unused]] const KScopedSchedulerLock sl(kernel);
auto it = thread_tree.nfind_light({addr, -1});
// Determine the updated value.
s32 new_value{};
if (/*GetTargetFirmware() >= TargetFirmware_7_0_0*/ true) {
if (count <= 0) {
if ((it != thread_tree.end()) && (it->GetAddressArbiterKey() == addr)) {
if (it != thread_tree.end() && it->GetAddressArbiterKey() == addr) {
new_value = value - 2;
} else {
new_value = value + 1;
}
} else {
if ((it != thread_tree.end()) && (it->GetAddressArbiterKey() == addr)) {
if (it != thread_tree.end() && it->GetAddressArbiterKey() == addr) {
auto tmp_it = it;
s32 tmp_num_waiters{};
while ((++tmp_it != thread_tree.end()) &&
(tmp_it->GetAddressArbiterKey() == addr)) {
if ((tmp_num_waiters++) >= count) {
while (++tmp_it != thread_tree.end() && tmp_it->GetAddressArbiterKey() == addr) {
if (tmp_num_waiters++ >= count) {
break;
}
}
@ -178,43 +177,20 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
new_value = value + 1;
}
}
} else {
if (count <= 0) {
if ((it != thread_tree.end()) && (it->GetAddressArbiterKey() == addr)) {
new_value = value - 1;
} else {
new_value = value + 1;
}
} else {
auto tmp_it = it;
s32 tmp_num_waiters{};
while ((tmp_it != thread_tree.end()) && (tmp_it->GetAddressArbiterKey() == addr) &&
(tmp_num_waiters < count + 1)) {
++tmp_num_waiters;
++tmp_it;
}
if (tmp_num_waiters == 0) {
new_value = value + 1;
} else if (tmp_num_waiters <= count) {
new_value = value - 1;
} else {
new_value = value;
}
}
}
// Check the userspace value.
s32 user_value{};
bool succeeded{};
if (value != new_value) {
succeeded = UpdateIfEqual(system, std::addressof(user_value), addr, value, new_value);
succeeded = UpdateIfEqual(system, &user_value, addr, value, new_value);
} else {
succeeded = ReadFromUser(system, std::addressof(user_value), addr);
succeeded = ReadFromUser(system, &user_value, addr);
}
R_UNLESS(succeeded, Svc::ResultInvalidCurrentMemory);
if (!succeeded) {
LOG_ERROR(Kernel, "Invalid current memory!");
return Svc::ResultInvalidCurrentMemory;
}
if (user_value != value) {
return Svc::ResultInvalidState;
}
@ -255,9 +231,9 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
s32 user_value{};
bool succeeded{};
if (decrement) {
succeeded = DecrementIfLessThan(system, std::addressof(user_value), addr, value);
succeeded = DecrementIfLessThan(system, &user_value, addr, value);
} else {
succeeded = ReadFromUser(system, std::addressof(user_value), addr);
succeeded = ReadFromUser(system, &user_value, addr);
}
if (!succeeded) {
@ -278,7 +254,7 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
}
// Set the arbiter.
cur_thread->SetAddressArbiter(std::addressof(thread_tree), addr);
cur_thread->SetAddressArbiter(&thread_tree, addr);
thread_tree.insert(*cur_thread);
cur_thread->SetState(ThreadState::Waiting);
cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Arbitration);
@ -299,7 +275,7 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
// Get the result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(std::addressof(dummy));
return cur_thread->GetWaitResult(&dummy);
}
ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
@ -320,7 +296,7 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
// Read the value from userspace.
s32 user_value{};
if (!ReadFromUser(system, std::addressof(user_value), addr)) {
if (!ReadFromUser(system, &user_value, addr)) {
slp.CancelSleep();
return Svc::ResultInvalidCurrentMemory;
}
@ -338,7 +314,7 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
}
// Set the arbiter.
cur_thread->SetAddressArbiter(std::addressof(thread_tree), addr);
cur_thread->SetAddressArbiter(&thread_tree, addr);
thread_tree.insert(*cur_thread);
cur_thread->SetState(ThreadState::Waiting);
cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Arbitration);
@ -359,7 +335,7 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
// Get the result.
KSynchronizationObject* dummy{};
return cur_thread->GetWaitResult(std::addressof(dummy));
return cur_thread->GetWaitResult(&dummy);
}
} // namespace Kernel

67
src/core/hle/kernel/k_scoped_resource_reservation.h Executable file
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@ -0,0 +1,67 @@
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphere, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
#pragma once
#include "common/common_types.h"
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/process.h"
namespace Kernel {
class KScopedResourceReservation {
public:
explicit KScopedResourceReservation(std::shared_ptr<KResourceLimit> l, LimitableResource r,
s64 v, s64 timeout)
: resource_limit(std::move(l)), value(v), resource(r) {
if (resource_limit && value) {
success = resource_limit->Reserve(resource, value, timeout);
} else {
success = true;
}
}
explicit KScopedResourceReservation(std::shared_ptr<KResourceLimit> l, LimitableResource r,
s64 v = 1)
: resource_limit(std::move(l)), value(v), resource(r) {
if (resource_limit && value) {
success = resource_limit->Reserve(resource, value);
} else {
success = true;
}
}
explicit KScopedResourceReservation(const Process* p, LimitableResource r, s64 v, s64 t)
: KScopedResourceReservation(p->GetResourceLimit(), r, v, t) {}
explicit KScopedResourceReservation(const Process* p, LimitableResource r, s64 v = 1)
: KScopedResourceReservation(p->GetResourceLimit(), r, v) {}
~KScopedResourceReservation() noexcept {
if (resource_limit && value && success) {
// resource was not committed, release the reservation.
resource_limit->Release(resource, value);
}
}
/// Commit the resource reservation, destruction of this object does not release the resource
void Commit() {
resource_limit = nullptr;
}
[[nodiscard]] bool Succeeded() const {
return success;
}
private:
std::shared_ptr<KResourceLimit> resource_limit;
s64 value;
LimitableResource resource;
bool success;
};
} // namespace Kernel

15
src/core/hle/kernel/kernel.cpp
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@ -141,11 +141,17 @@ struct KernelCore::Impl {
ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Events, 700).IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(LimitableResource::TransferMemory, 200)
.IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Sessions, 900).IsSuccess());
ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Sessions, 933).IsSuccess());
if (!system_resource_limit->Reserve(LimitableResource::PhysicalMemory, 0x60000)) {
// Derived from recent software updates. The kernel reserves 27MB
constexpr u64 kernel_size{0x1b00000};
if (!system_resource_limit->Reserve(LimitableResource::PhysicalMemory, kernel_size)) {
UNREACHABLE();
}
// Reserve secure applet memory, introduced in firmware 5.0.0
constexpr u64 secure_applet_memory_size{0x400000};
ASSERT(system_resource_limit->Reserve(LimitableResource::PhysicalMemory,
secure_applet_memory_size));
}
void InitializePreemption(KernelCore& kernel) {
@ -302,8 +308,11 @@ struct KernelCore::Impl {
// Allocate slab heaps
user_slab_heap_pages = std::make_unique<Memory::SlabHeap<Memory::Page>>();
constexpr u64 user_slab_heap_size{0x1ef000};
// Reserve slab heaps
ASSERT(
system_resource_limit->Reserve(LimitableResource::PhysicalMemory, user_slab_heap_size));
// Initialize slab heaps
constexpr u64 user_slab_heap_size{0x3de000};
user_slab_heap_pages->Initialize(
system.DeviceMemory().GetPointer(Core::DramMemoryMap::SlabHeapBase),
user_slab_heap_size);

37
src/core/hle/kernel/memory/page_table.cpp
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@ -7,7 +7,7 @@
#include "common/scope_exit.h"
#include "core/core.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/address_space_info.h"
#include "core/hle/kernel/memory/memory_block.h"
@ -409,27 +409,25 @@ ResultCode PageTable::MapPhysicalMemory(VAddr addr, std::size_t size) {
return RESULT_SUCCESS;
}
auto process{system.Kernel().CurrentProcess()};
const std::size_t remaining_size{size - mapped_size};
const std::size_t remaining_pages{remaining_size / PageSize};
if (process->GetResourceLimit() &&
!process->GetResourceLimit()->Reserve(LimitableResource::PhysicalMemory, remaining_size)) {
// Reserve the memory from the process resource limit.
KScopedResourceReservation memory_reservation(
system.Kernel().CurrentProcess()->GetResourceLimit(), LimitableResource::PhysicalMemory,
remaining_size);
if (!memory_reservation.Succeeded()) {
LOG_ERROR(Kernel, "Could not reserve remaining {:X} bytes", remaining_size);
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
PageLinkedList page_linked_list;
{
auto block_guard = detail::ScopeExit([&] {
system.Kernel().MemoryManager().Free(page_linked_list, remaining_pages, memory_pool);
process->GetResourceLimit()->Release(LimitableResource::PhysicalMemory, remaining_size);
});
CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages,
memory_pool));
CASCADE_CODE(
system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages, memory_pool));
block_guard.Cancel();
}
// We succeeded, so commit the memory reservation.
memory_reservation.Commit();
MapPhysicalMemory(page_linked_list, addr, end_addr);
@ -781,9 +779,13 @@ ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) {
const u64 delta{size - previous_heap_size};
auto process{system.Kernel().CurrentProcess()};
if (process->GetResourceLimit() && delta != 0 &&
!process->GetResourceLimit()->Reserve(LimitableResource::PhysicalMemory, delta)) {
// Reserve memory for the heap extension.
KScopedResourceReservation memory_reservation(
system.Kernel().CurrentProcess()->GetResourceLimit(), LimitableResource::PhysicalMemory,
delta);
if (!memory_reservation.Succeeded()) {
LOG_ERROR(Kernel, "Could not reserve heap extension of size {:X} bytes", delta);
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
@ -800,6 +802,9 @@ ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) {
CASCADE_CODE(
Operate(current_heap_addr, num_pages, page_linked_list, OperationType::MapGroup));
// Succeeded in allocation, commit the resource reservation
memory_reservation.Commit();
block_manager->Update(current_heap_addr, num_pages, MemoryState::Normal,
MemoryPermission::ReadAndWrite);

34
src/core/hle/kernel/process.cpp
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@ -17,6 +17,7 @@
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/memory_block_manager.h"
@ -39,6 +40,7 @@ namespace {
*/
void SetupMainThread(Core::System& system, Process& owner_process, u32 priority, VAddr stack_top) {
const VAddr entry_point = owner_process.PageTable().GetCodeRegionStart();
ASSERT(owner_process.GetResourceLimit()->Reserve(LimitableResource::Threads, 1));
auto thread_res = KThread::Create(system, ThreadType::User, "main", entry_point, priority, 0,
owner_process.GetIdealCoreId(), stack_top, &owner_process);
@ -117,6 +119,9 @@ std::shared_ptr<Process> Process::Create(Core::System& system, std::string name,
std::shared_ptr<Process> process = std::make_shared<Process>(system);
process->name = std::move(name);
// TODO: This is inaccurate
// The process should hold a reference to the kernel-wide resource limit.
process->resource_limit = std::make_shared<KResourceLimit>(kernel, system);
process->status = ProcessStatus::Created;
process->program_id = 0;
@ -155,6 +160,9 @@ void Process::DecrementThreadCount() {
}
u64 Process::GetTotalPhysicalMemoryAvailable() const {
// TODO: This is expected to always return the application memory pool size after accurately
// reserving kernel resources. The current workaround uses a process-local resource limit of
// application memory pool size, which is inaccurate.
const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) +
page_table->GetTotalHeapSize() + GetSystemResourceSize() + image_size +
main_thread_stack_size};
@ -264,6 +272,17 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
system_resource_size = metadata.GetSystemResourceSize();
image_size = code_size;
// Set initial resource limits
resource_limit->SetLimitValue(
LimitableResource::PhysicalMemory,
kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application));
KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory,
code_size + system_resource_size);
if (!memory_reservation.Succeeded()) {
LOG_ERROR(Kernel, "Could not reserve process memory requirements of size {:X} bytes",
code_size + system_resource_size);
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
// Initialize proces address space
if (const ResultCode result{
page_table->InitializeForProcess(metadata.GetAddressSpaceType(), false, 0x8000000,
@ -305,24 +324,22 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata,
UNREACHABLE();
}
// Set initial resource limits
resource_limit->SetLimitValue(
LimitableResource::PhysicalMemory,
kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application));
resource_limit->SetLimitValue(LimitableResource::Threads, 608);
resource_limit->SetLimitValue(LimitableResource::Events, 700);
resource_limit->SetLimitValue(LimitableResource::TransferMemory, 128);
resource_limit->SetLimitValue(LimitableResource::Sessions, 894);
ASSERT(resource_limit->Reserve(LimitableResource::PhysicalMemory, code_size));
// Create TLS region
tls_region_address = CreateTLSRegion();
memory_reservation.Commit();
return handle_table.SetSize(capabilities.GetHandleTableSize());
}
void Process::Run(s32 main_thread_priority, u64 stack_size) {
AllocateMainThreadStack(stack_size);
resource_limit->Reserve(LimitableResource::Threads, 1);
resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
const std::size_t heap_capacity{memory_usage_capacity - main_thread_stack_size - image_size};
ASSERT(!page_table->SetHeapCapacity(heap_capacity).IsError());
@ -330,8 +347,6 @@ void Process::Run(s32 main_thread_priority, u64 stack_size) {
ChangeStatus(ProcessStatus::Running);
SetupMainThread(system, *this, main_thread_priority, main_thread_stack_top);
resource_limit->Reserve(LimitableResource::Threads, 1);
resource_limit->Reserve(LimitableResource::PhysicalMemory, main_thread_stack_size);
}
void Process::PrepareForTermination() {
@ -358,6 +373,11 @@ void Process::PrepareForTermination() {
FreeTLSRegion(tls_region_address);
tls_region_address = 0;
if (resource_limit) {
resource_limit->Release(LimitableResource::PhysicalMemory,
main_thread_stack_size + image_size);
}
ChangeStatus(ProcessStatus::Exited);
}

11
src/core/hle/kernel/session.cpp
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@ -4,15 +4,23 @@
#include "common/assert.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/kernel/session.h"
namespace Kernel {
Session::Session(KernelCore& kernel) : KSynchronizationObject{kernel} {}
Session::~Session() = default;
Session::~Session() {
// Release reserved resource when the Session pair was created.
kernel.GetSystemResourceLimit()->Release(LimitableResource::Sessions, 1);
}
Session::SessionPair Session::Create(KernelCore& kernel, std::string name) {
// Reserve a new session from the resource limit.
KScopedResourceReservation session_reservation(kernel.GetSystemResourceLimit(),
LimitableResource::Sessions);
ASSERT(session_reservation.Succeeded());
auto session{std::make_shared<Session>(kernel)};
auto client_session{Kernel::ClientSession::Create(kernel, session, name + "_Client").Unwrap()};
auto server_session{Kernel::ServerSession::Create(kernel, session, name + "_Server").Unwrap()};
@ -21,6 +29,7 @@ Session::SessionPair Session::Create(KernelCore& kernel, std::string name) {
session->client = client_session;
session->server = server_session;
session_reservation.Commit();
return std::make_pair(std::move(client_session), std::move(server_session));
}

11
src/core/hle/kernel/shared_memory.cpp
View File

@ -4,6 +4,7 @@
#include "common/assert.h"
#include "core/core.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/shared_memory.h"
@ -13,7 +14,9 @@ namespace Kernel {
SharedMemory::SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory)
: Object{kernel}, device_memory{device_memory} {}
SharedMemory::~SharedMemory() = default;
SharedMemory::~SharedMemory() {
kernel.GetSystemResourceLimit()->Release(LimitableResource::PhysicalMemory, size);
}
std::shared_ptr<SharedMemory> SharedMemory::Create(
KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process,
@ -21,6 +24,11 @@ std::shared_ptr<SharedMemory> SharedMemory::Create(
Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size,
std::string name) {
const auto resource_limit = kernel.GetSystemResourceLimit();
KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory,
size);
ASSERT(memory_reservation.Succeeded());
std::shared_ptr<SharedMemory> shared_memory{
std::make_shared<SharedMemory>(kernel, device_memory)};
@ -32,6 +40,7 @@ std::shared_ptr<SharedMemory> SharedMemory::Create(
shared_memory->size = size;
shared_memory->name = name;
memory_reservation.Commit();
return shared_memory;
}

48
src/core/hle/kernel/svc.cpp
View File

@ -31,6 +31,7 @@
#include "core/hle/kernel/k_readable_event.h"
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
#include "core/hle/kernel/k_synchronization_object.h"
#include "core/hle/kernel/k_thread.h"
@ -138,6 +139,7 @@ ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr ds
enum class ResourceLimitValueType {
CurrentValue,
LimitValue,
PeakValue,
};
ResultVal<s64> RetrieveResourceLimitValue(Core::System& system, Handle resource_limit,
@ -160,11 +162,17 @@ ResultVal<s64> RetrieveResourceLimitValue(Core::System& system, Handle resource_
return ERR_INVALID_HANDLE;
}
if (value_type == ResourceLimitValueType::CurrentValue) {
switch (value_type) {
case ResourceLimitValueType::CurrentValue:
return MakeResult(resource_limit_object->GetCurrentValue(type));
}
case ResourceLimitValueType::LimitValue:
return MakeResult(resource_limit_object->GetLimitValue(type));
case ResourceLimitValueType::PeakValue:
return MakeResult(resource_limit_object->GetPeakValue(type));
default:
LOG_ERROR(Kernel_SVC, "Invalid resource value_type: '{}'", value_type);
return ERR_INVALID_ENUM_VALUE;
}
}
} // Anonymous namespace
@ -314,8 +322,6 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle,
return ERR_NOT_FOUND;
}
ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(LimitableResource::Sessions, 1));
auto client_port = it->second;
std::shared_ptr<ClientSession> client_session;
@ -1452,8 +1458,13 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
Svc::ResultInvalidPriority);
R_UNLESS(process.CheckThreadPriority(priority), Svc::ResultInvalidPriority);
ASSERT(process.GetResourceLimit()->Reserve(
LimitableResource::Threads, 1, system.CoreTiming().GetGlobalTimeNs().count() + 100000000));
KScopedResourceReservation thread_reservation(
kernel.CurrentProcess(), LimitableResource::Threads, 1,
system.CoreTiming().GetGlobalTimeNs().count() + 100000000);
if (!thread_reservation.Succeeded()) {
LOG_ERROR(Kernel_SVC, "Could not reserve a new thread");
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
std::shared_ptr<KThread> thread;
{
@ -1473,6 +1484,7 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e
// Set the thread name for debugging purposes.
thread->SetName(
fmt::format("thread[entry_point={:X}, handle={:X}]", entry_point, *new_thread_handle));
thread_reservation.Commit();
return RESULT_SUCCESS;
}
@ -1787,6 +1799,13 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
}
auto& kernel = system.Kernel();
// Reserve a new transfer memory from the process resource limit.
KScopedResourceReservation trmem_reservation(kernel.CurrentProcess(),
LimitableResource::TransferMemory);
if (!trmem_reservation.Succeeded()) {
LOG_ERROR(Kernel_SVC, "Could not reserve a new transfer memory");
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
auto transfer_mem_handle = TransferMemory::Create(kernel, system.Memory(), addr, size, perms);
if (const auto reserve_result{transfer_mem_handle->Reserve()}; reserve_result.IsError()) {
@ -1798,6 +1817,7 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd
if (result.Failed()) {
return result.Code();
}
trmem_reservation.Commit();
*handle = *result;
return RESULT_SUCCESS;
@ -1879,13 +1899,25 @@ static ResultCode SetThreadCoreMask32(Core::System& system, Handle thread_handle
static ResultCode SignalEvent(Core::System& system, Handle event_handle) {
LOG_DEBUG(Kernel_SVC, "called, event_handle=0x{:08X}", event_handle);
auto& kernel = system.Kernel();
// Get the current handle table.
const HandleTable& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
const HandleTable& handle_table = kernel.CurrentProcess()->GetHandleTable();
// Reserve a new event from the process resource limit.
KScopedResourceReservation event_reservation(kernel.CurrentProcess(),
LimitableResource::Events);
if (!event_reservation.Succeeded()) {
LOG_ERROR(Kernel, "Could not reserve a new event");
return ERR_RESOURCE_LIMIT_EXCEEDED;
}
// Get the writable event.
auto writable_event = handle_table.Get<KWritableEvent>(event_handle);
R_UNLESS(writable_event, Svc::ResultInvalidHandle);
// Commit the successfuly reservation.
event_reservation.Commit();
return writable_event->Signal();
}

2
src/core/hle/kernel/transfer_memory.cpp
View File

@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory/page_table.h"
#include "core/hle/kernel/process.h"
@ -17,6 +18,7 @@ TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory)
TransferMemory::~TransferMemory() {
// Release memory region when transfer memory is destroyed
Reset();
owner_process->GetResourceLimit()->Release(LimitableResource::TransferMemory, 1);
}
std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel,

10
src/tests/common/ring_buffer.cpp
View File

@ -14,7 +14,7 @@
namespace Common {
TEST_CASE("RingBuffer: Basic Tests", "[common]") {
RingBuffer<char, 4, 1> buf;
RingBuffer<char, 4> buf;
// Pushing values into a ring buffer with space should succeed.
for (std::size_t i = 0; i < 4; i++) {
@ -77,7 +77,7 @@ TEST_CASE("RingBuffer: Basic Tests", "[common]") {
}
TEST_CASE("RingBuffer: Threaded Test", "[common]") {
RingBuffer<char, 4, 2> buf;
RingBuffer<char, 8> buf;
const char seed = 42;
const std::size_t count = 1000000;
std::size_t full = 0;
@ -92,8 +92,8 @@ TEST_CASE("RingBuffer: Threaded Test", "[common]") {
std::array<char, 2> value = {seed, seed};
std::size_t i = 0;
while (i < count) {
if (const std::size_t c = buf.Push(&value[0], 1); c > 0) {
REQUIRE(c == 1U);
if (const std::size_t c = buf.Push(&value[0], 2); c > 0) {
REQUIRE(c == 2U);
i++;
next_value(value);
} else {
@ -107,7 +107,7 @@ TEST_CASE("RingBuffer: Threaded Test", "[common]") {
std::array<char, 2> value = {seed, seed};
std::size_t i = 0;
while (i < count) {
if (const std::vector<char> v = buf.Pop(1); v.size() > 0) {
if (const std::vector<char> v = buf.Pop(2); v.size() > 0) {
REQUIRE(v.size() == 2U);
REQUIRE(v[0] == value[0]);
REQUIRE(v[1] == value[1]);