core: hle: kernel: KProcess: Pass in KResourceLimit on process creation.

- This allows us to have a resource limit per process, rather than use the global system resource limit.
This commit is contained in:
bunnei 2022-02-21 12:33:17 -08:00
parent 57ebcbf2c4
commit a74fddc98f
4 changed files with 30 additions and 9 deletions

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@ -28,7 +28,9 @@
#include "core/file_sys/vfs_real.h" #include "core/file_sys/vfs_real.h"
#include "core/hardware_interrupt_manager.h" #include "core/hardware_interrupt_manager.h"
#include "core/hid/hid_core.h" #include "core/hid/hid_core.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_process.h" #include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/k_resource_limit.h"
#include "core/hle/kernel/k_scheduler.h" #include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/physical_core.h" #include "core/hle/kernel/physical_core.h"
@ -252,9 +254,16 @@ struct System::Impl {
} }
telemetry_session->AddInitialInfo(*app_loader, fs_controller, *content_provider); telemetry_session->AddInitialInfo(*app_loader, fs_controller, *content_provider);
// Create a resource limit for the process.
const auto physical_memory_size =
kernel.MemoryManager().GetSize(Kernel::KMemoryManager::Pool::Application);
auto* resource_limit = Kernel::CreateResourceLimitForProcess(system, physical_memory_size);
// Create the process.
auto main_process = Kernel::KProcess::Create(system.Kernel()); auto main_process = Kernel::KProcess::Create(system.Kernel());
ASSERT(Kernel::KProcess::Initialize(main_process, system, "main", ASSERT(Kernel::KProcess::Initialize(main_process, system, "main",
Kernel::KProcess::ProcessType::Userland) Kernel::KProcess::ProcessType::Userland, resource_limit)
.IsSuccess()); .IsSuccess());
const auto [load_result, load_parameters] = app_loader->Load(*main_process, system); const auto [load_result, load_parameters] = app_loader->Load(*main_process, system);
if (load_result != Loader::ResultStatus::Success) { if (load_result != Loader::ResultStatus::Success) {

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@ -123,12 +123,11 @@ private:
}; };
ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::string process_name, ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::string process_name,
ProcessType type) { ProcessType type, KResourceLimit* res_limit) {
auto& kernel = system.Kernel(); auto& kernel = system.Kernel();
process->name = std::move(process_name); process->name = std::move(process_name);
process->resource_limit = res_limit;
process->resource_limit = kernel.GetSystemResourceLimit();
process->status = ProcessStatus::Created; process->status = ProcessStatus::Created;
process->program_id = 0; process->program_id = 0;
process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID() process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID()
@ -143,9 +142,6 @@ ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::st
kernel.AppendNewProcess(process); kernel.AppendNewProcess(process);
// Open a reference to the resource limit.
process->resource_limit->Open();
// Clear remaining fields. // Clear remaining fields.
process->num_running_threads = 0; process->num_running_threads = 0;
process->is_signaled = false; process->is_signaled = false;
@ -153,6 +149,9 @@ ResultCode KProcess::Initialize(KProcess* process, Core::System& system, std::st
process->is_suspended = false; process->is_suspended = false;
process->schedule_count = 0; process->schedule_count = 0;
// Open a reference to the resource limit.
process->resource_limit->Open();
return ResultSuccess; return ResultSuccess;
} }

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@ -91,7 +91,7 @@ public:
static constexpr std::size_t RANDOM_ENTROPY_SIZE = 4; static constexpr std::size_t RANDOM_ENTROPY_SIZE = 4;
static ResultCode Initialize(KProcess* process, Core::System& system, std::string process_name, static ResultCode Initialize(KProcess* process, Core::System& system, std::string process_name,
ProcessType type); ProcessType type, KResourceLimit* res_limit);
/// Gets a reference to the process' page table. /// Gets a reference to the process' page table.
KPageTable& PageTable() { KPageTable& PageTable() {

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@ -3,7 +3,9 @@
// Refer to the license.txt file included. // Refer to the license.txt file included.
#include "core/core.h" #include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/k_event.h" #include "core/hle/kernel/k_event.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_process.h" #include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/k_readable_event.h" #include "core/hle/kernel/k_readable_event.h"
#include "core/hle/kernel/k_resource_limit.h" #include "core/hle/kernel/k_resource_limit.h"
@ -15,10 +17,21 @@ namespace Service::KernelHelpers {
ServiceContext::ServiceContext(Core::System& system_, std::string name_) ServiceContext::ServiceContext(Core::System& system_, std::string name_)
: kernel(system_.Kernel()) { : kernel(system_.Kernel()) {
// Create a resource limit for the process.
const auto physical_memory_size =
kernel.MemoryManager().GetSize(Kernel::KMemoryManager::Pool::System);
auto* resource_limit = Kernel::CreateResourceLimitForProcess(system_, physical_memory_size);
// Create the process.
process = Kernel::KProcess::Create(kernel); process = Kernel::KProcess::Create(kernel);
ASSERT(Kernel::KProcess::Initialize(process, system_, std::move(name_), ASSERT(Kernel::KProcess::Initialize(process, system_, std::move(name_),
Kernel::KProcess::ProcessType::Userland) Kernel::KProcess::ProcessType::KernelInternal,
resource_limit)
.IsSuccess()); .IsSuccess());
// Close reference to our resource limit, as the process opens one.
resource_limit->Close();
} }
ServiceContext::~ServiceContext() { ServiceContext::~ServiceContext() {