diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 1fd4ba5d26..e441c5bc6a 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -105,7 +105,7 @@ struct KernelCore::Impl {
void Initialize(KernelCore& kernel) {
Shutdown();
- InitializeResourceLimits(kernel);
+ InitializeSystemResourceLimit(kernel);
InitializeThreads();
InitializeTimers();
}
@@ -118,7 +118,7 @@ struct KernelCore::Impl {
process_list.clear();
current_process = nullptr;
- resource_limits.fill(nullptr);
+ system_resource_limit = nullptr;
thread_wakeup_callback_handle_table.Clear();
thread_wakeup_event_type = nullptr;
@@ -129,63 +129,17 @@ struct KernelCore::Impl {
named_ports.clear();
}
- void InitializeResourceLimits(KernelCore& kernel) {
- // Create the four resource limits that the system uses
- // Create the APPLICATION resource limit
- SharedPtr<ResourceLimit> resource_limit = ResourceLimit::Create(kernel, "Applications");
- resource_limit->max_priority = 0x18;
- resource_limit->max_commit = 0x4000000;
- resource_limit->max_threads = 0x20;
- resource_limit->max_events = 0x20;
- resource_limit->max_mutexes = 0x20;
- resource_limit->max_semaphores = 0x8;
- resource_limit->max_timers = 0x8;
- resource_limit->max_shared_mems = 0x10;
- resource_limit->max_address_arbiters = 0x2;
- resource_limit->max_cpu_time = 0x1E;
- resource_limits[static_cast<u8>(ResourceLimitCategory::APPLICATION)] = resource_limit;
+ // Creates the default system resource limit
+ void InitializeSystemResourceLimit(KernelCore& kernel) {
+ system_resource_limit = ResourceLimit::Create(kernel, "System");
- // Create the SYS_APPLET resource limit
- resource_limit = ResourceLimit::Create(kernel, "System Applets");
- resource_limit->max_priority = 0x4;
- resource_limit->max_commit = 0x5E00000;
- resource_limit->max_threads = 0x1D;
- resource_limit->max_events = 0xB;
- resource_limit->max_mutexes = 0x8;
- resource_limit->max_semaphores = 0x4;
- resource_limit->max_timers = 0x4;
- resource_limit->max_shared_mems = 0x8;
- resource_limit->max_address_arbiters = 0x3;
- resource_limit->max_cpu_time = 0x2710;
- resource_limits[static_cast<u8>(ResourceLimitCategory::SYS_APPLET)] = resource_limit;
-
- // Create the LIB_APPLET resource limit
- resource_limit = ResourceLimit::Create(kernel, "Library Applets");
- resource_limit->max_priority = 0x4;
- resource_limit->max_commit = 0x600000;
- resource_limit->max_threads = 0xE;
- resource_limit->max_events = 0x8;
- resource_limit->max_mutexes = 0x8;
- resource_limit->max_semaphores = 0x4;
- resource_limit->max_timers = 0x4;
- resource_limit->max_shared_mems = 0x8;
- resource_limit->max_address_arbiters = 0x1;
- resource_limit->max_cpu_time = 0x2710;
- resource_limits[static_cast<u8>(ResourceLimitCategory::LIB_APPLET)] = resource_limit;
-
- // Create the OTHER resource limit
- resource_limit = ResourceLimit::Create(kernel, "Others");
- resource_limit->max_priority = 0x4;
- resource_limit->max_commit = 0x2180000;
- resource_limit->max_threads = 0xE1;
- resource_limit->max_events = 0x108;
- resource_limit->max_mutexes = 0x25;
- resource_limit->max_semaphores = 0x43;
- resource_limit->max_timers = 0x2C;
- resource_limit->max_shared_mems = 0x1F;
- resource_limit->max_address_arbiters = 0x2D;
- resource_limit->max_cpu_time = 0x3E8;
- resource_limits[static_cast<u8>(ResourceLimitCategory::OTHER)] = resource_limit;
+ // If setting the default system values fails, then something seriously wrong has occurred.
+ ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x200000000)
+ .IsSuccess());
+ ASSERT(system_resource_limit->SetLimitValue(ResourceType::Threads, 800).IsSuccess());
+ ASSERT(system_resource_limit->SetLimitValue(ResourceType::Events, 700).IsSuccess());
+ ASSERT(system_resource_limit->SetLimitValue(ResourceType::TransferMemory, 200).IsSuccess());
+ ASSERT(system_resource_limit->SetLimitValue(ResourceType::Sessions, 900).IsSuccess());
}
void InitializeThreads() {
@@ -208,7 +162,7 @@ struct KernelCore::Impl {
std::vector<SharedPtr<Process>> process_list;
Process* current_process = nullptr;
- std::array<SharedPtr<ResourceLimit>, 4> resource_limits;
+ SharedPtr<ResourceLimit> system_resource_limit;
/// The event type of the generic timer callback event
CoreTiming::EventType* timer_callback_event_type = nullptr;
@@ -239,9 +193,8 @@ void KernelCore::Shutdown() {
impl->Shutdown();
}
-SharedPtr<ResourceLimit> KernelCore::ResourceLimitForCategory(
- ResourceLimitCategory category) const {
- return impl->resource_limits.at(static_cast<std::size_t>(category));
+SharedPtr<ResourceLimit> KernelCore::GetSystemResourceLimit() const {
+ return impl->system_resource_limit;
}
SharedPtr<Thread> KernelCore::RetrieveThreadFromWakeupCallbackHandleTable(Handle handle) const {
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 7f822d5242..ea00c89f59 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -24,8 +24,6 @@ class ResourceLimit;
class Thread;
class Timer;
-enum class ResourceLimitCategory : u8;
-
/// Represents a single instance of the kernel.
class KernelCore {
private:
@@ -47,8 +45,8 @@ public:
/// Clears all resources in use by the kernel instance.
void Shutdown();
- /// Retrieves a shared pointer to a ResourceLimit identified by the given category.
- SharedPtr<ResourceLimit> ResourceLimitForCategory(ResourceLimitCategory category) const;
+ /// Retrieves a shared pointer to the system resource limit instance.
+ SharedPtr<ResourceLimit> GetSystemResourceLimit() const;
/// Retrieves a shared pointer to a Thread instance within the thread wakeup handle table.
SharedPtr<Thread> RetrieveThreadFromWakeupCallbackHandleTable(Handle handle) const;
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index a257c37269..1412257a09 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -28,7 +28,7 @@ SharedPtr<Process> Process::Create(KernelCore& kernel, std::string&& name) {
process->name = std::move(name);
process->flags.raw = 0;
process->flags.memory_region.Assign(MemoryRegion::APPLICATION);
- process->resource_limit = kernel.ResourceLimitForCategory(ResourceLimitCategory::APPLICATION);
+ process->resource_limit = kernel.GetSystemResourceLimit();
process->status = ProcessStatus::Created;
process->program_id = 0;
process->process_id = kernel.CreateNewProcessID();
diff --git a/src/core/hle/kernel/resource_limit.cpp b/src/core/hle/kernel/resource_limit.cpp
index b253a680f7..2f9695005f 100644
--- a/src/core/hle/kernel/resource_limit.cpp
+++ b/src/core/hle/kernel/resource_limit.cpp
@@ -2,12 +2,16 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
-#include <cstring>
-#include "common/assert.h"
-#include "common/logging/log.h"
+#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/resource_limit.h"
+#include "core/hle/result.h"
namespace Kernel {
+namespace {
+constexpr std::size_t ResourceTypeToIndex(ResourceType type) {
+ return static_cast<std::size_t>(type);
+}
+} // Anonymous namespace
ResourceLimit::ResourceLimit(KernelCore& kernel) : Object{kernel} {}
ResourceLimit::~ResourceLimit() = default;
@@ -19,59 +23,22 @@ SharedPtr<ResourceLimit> ResourceLimit::Create(KernelCore& kernel, std::string n
return resource_limit;
}
-s32 ResourceLimit::GetCurrentResourceValue(ResourceType resource) const {
- switch (resource) {
- case ResourceType::Commit:
- return current_commit;
- case ResourceType::Thread:
- return current_threads;
- case ResourceType::Event:
- return current_events;
- case ResourceType::Mutex:
- return current_mutexes;
- case ResourceType::Semaphore:
- return current_semaphores;
- case ResourceType::Timer:
- return current_timers;
- case ResourceType::SharedMemory:
- return current_shared_mems;
- case ResourceType::AddressArbiter:
- return current_address_arbiters;
- case ResourceType::CPUTime:
- return current_cpu_time;
- default:
- LOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
- UNIMPLEMENTED();
- return 0;
- }
+s64 ResourceLimit::GetCurrentResourceValue(ResourceType resource) const {
+ return values.at(ResourceTypeToIndex(resource));
}
-u32 ResourceLimit::GetMaxResourceValue(ResourceType resource) const {
- switch (resource) {
- case ResourceType::Priority:
- return max_priority;
- case ResourceType::Commit:
- return max_commit;
- case ResourceType::Thread:
- return max_threads;
- case ResourceType::Event:
- return max_events;
- case ResourceType::Mutex:
- return max_mutexes;
- case ResourceType::Semaphore:
- return max_semaphores;
- case ResourceType::Timer:
- return max_timers;
- case ResourceType::SharedMemory:
- return max_shared_mems;
- case ResourceType::AddressArbiter:
- return max_address_arbiters;
- case ResourceType::CPUTime:
- return max_cpu_time;
- default:
- LOG_ERROR(Kernel, "Unknown resource type={:08X}", static_cast<u32>(resource));
- UNIMPLEMENTED();
- return 0;
+s64 ResourceLimit::GetMaxResourceValue(ResourceType resource) const {
+ return limits.at(ResourceTypeToIndex(resource));
+}
+
+ResultCode ResourceLimit::SetLimitValue(ResourceType resource, s64 value) {
+ const auto index = ResourceTypeToIndex(resource);
+
+ if (value < values[index]) {
+ return ERR_INVALID_STATE;
}
+
+ values[index] = value;
+ return RESULT_SUCCESS;
}
} // namespace Kernel
diff --git a/src/core/hle/kernel/resource_limit.h b/src/core/hle/kernel/resource_limit.h
index 219e495624..bec0655432 100644
--- a/src/core/hle/kernel/resource_limit.h
+++ b/src/core/hle/kernel/resource_limit.h
@@ -4,31 +4,25 @@
#pragma once
+#include <array>
#include "common/common_types.h"
#include "core/hle/kernel/object.h"
+union ResultCode;
+
namespace Kernel {
class KernelCore;
-enum class ResourceLimitCategory : u8 {
- APPLICATION = 0,
- SYS_APPLET = 1,
- LIB_APPLET = 2,
- OTHER = 3
-};
-
enum class ResourceType {
- Priority = 0,
- Commit = 1,
- Thread = 2,
- Event = 3,
- Mutex = 4,
- Semaphore = 5,
- Timer = 6,
- SharedMemory = 7,
- AddressArbiter = 8,
- CPUTime = 9,
+ PhysicalMemory,
+ Threads,
+ Events,
+ TransferMemory,
+ Sessions,
+
+ // Used as a count, not an actual type.
+ ResourceTypeCount
};
class ResourceLimit final : public Object {
@@ -55,61 +49,51 @@ public:
* @param resource Requested resource type
* @returns The current value of the resource type
*/
- s32 GetCurrentResourceValue(ResourceType resource) const;
+ s64 GetCurrentResourceValue(ResourceType resource) const;
/**
* Gets the max value for the specified resource.
* @param resource Requested resource type
* @returns The max value of the resource type
*/
- u32 GetMaxResourceValue(ResourceType resource) const;
+ s64 GetMaxResourceValue(ResourceType resource) const;
- /// Name of resource limit object.
- std::string name;
-
- /// Max thread priority that a process in this category can create
- s32 max_priority = 0;
-
- /// Max memory that processes in this category can use
- s32 max_commit = 0;
-
- ///< Max number of objects that can be collectively created by the processes in this category
- s32 max_threads = 0;
- s32 max_events = 0;
- s32 max_mutexes = 0;
- s32 max_semaphores = 0;
- s32 max_timers = 0;
- s32 max_shared_mems = 0;
- s32 max_address_arbiters = 0;
-
- /// Max CPU time that the processes in this category can utilize
- s32 max_cpu_time = 0;
-
- // TODO(Subv): Increment these in their respective Kernel::T::Create functions, keeping in mind
- // that APPLICATION resource limits should not be affected by the objects created by service
- // modules.
- // Currently we have no way of distinguishing if a Create was called by the running application,
- // or by a service module. Approach this once we have separated the service modules into their
- // own processes
-
- /// Current memory that the processes in this category are using
- s32 current_commit = 0;
-
- ///< Current number of objects among all processes in this category
- s32 current_threads = 0;
- s32 current_events = 0;
- s32 current_mutexes = 0;
- s32 current_semaphores = 0;
- s32 current_timers = 0;
- s32 current_shared_mems = 0;
- s32 current_address_arbiters = 0;
-
- /// Current CPU time that the processes in this category are utilizing
- s32 current_cpu_time = 0;
+ /**
+ * Sets the limit value for a given resource type.
+ *
+ * @param resource The resource type to apply the limit to.
+ * @param value The limit to apply to the given resource type.
+ *
+ * @return A result code indicating if setting the limit value
+ * was successful or not.
+ *
+ * @note The supplied limit value *must* be greater than or equal to
+ * the current resource value for the given resource type,
+ * otherwise ERR_INVALID_STATE will be returned.
+ */
+ ResultCode SetLimitValue(ResourceType resource, s64 value);
private:
explicit ResourceLimit(KernelCore& kernel);
~ResourceLimit() override;
+
+ // TODO(Subv): Increment resource limit current values in their respective Kernel::T::Create
+ // functions
+ //
+ // Currently we have no way of distinguishing if a Create was called by the running application,
+ // or by a service module. Approach this once we have separated the service modules into their
+ // own processes
+
+ using ResourceArray =
+ std::array<s64, static_cast<std::size_t>(ResourceType::ResourceTypeCount)>;
+
+ /// Maximum values a resource type may reach.
+ ResourceArray limits{};
+ /// Current resource limit values.
+ ResourceArray values{};
+
+ /// Name of resource limit object.
+ std::string name;
};
} // namespace Kernel
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 75dbfc31dc..9904605cdc 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -736,13 +736,6 @@ static ResultCode SetThreadPriority(Handle handle, u32 priority) {
const auto* const current_process = Core::CurrentProcess();
- // Note: The kernel uses the current process's resource limit instead of
- // the one from the thread owner's resource limit.
- const ResourceLimit& resource_limit = current_process->GetResourceLimit();
- if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) {
- return ERR_INVALID_THREAD_PRIORITY;
- }
-
SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle);
if (!thread) {
return ERR_INVALID_HANDLE;
@@ -885,10 +878,6 @@ static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, V
}
auto* const current_process = Core::CurrentProcess();
- const ResourceLimit& resource_limit = current_process->GetResourceLimit();
- if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) {
- return ERR_INVALID_THREAD_PRIORITY;
- }
if (processor_id == THREADPROCESSORID_DEFAULT) {
// Set the target CPU to the one specified in the process' exheader.