mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-04 23:39:24 +00:00
229 lines
9.3 KiB
C++
229 lines
9.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
namespace {
|
|
|
|
constexpr u64 InitialProcessIdMin = 1;
|
|
constexpr u64 InitialProcessIdMax = 0x50;
|
|
std::atomic<u64> g_initial_process_id = InitialProcessIdMin;
|
|
|
|
}
|
|
|
|
void KProcess::Finalize() {
|
|
MESOSPHERE_TODO_IMPLEMENT();
|
|
}
|
|
|
|
Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms) {
|
|
/* TODO: Validate intended kernel version. */
|
|
/* How should we do this? */
|
|
|
|
/* Create and clear the process local region. */
|
|
R_TRY(this->CreateThreadLocalRegion(std::addressof(this->plr_address)));
|
|
std::memset(this->GetThreadLocalRegionPointer(this->plr_address), 0, ams::svc::ThreadLocalRegionSize);
|
|
|
|
/* Copy in the name from parameters. */
|
|
static_assert(sizeof(params.name) < sizeof(this->name));
|
|
std::memcpy(this->name, params.name, sizeof(params.name));
|
|
this->name[sizeof(params.name)] = 0;
|
|
|
|
/* Set misc fields. */
|
|
this->state = State_Created;
|
|
this->main_thread_stack_size = 0;
|
|
this->creation_time = KHardwareTimer::GetTick();
|
|
this->used_kernel_memory_size = 0;
|
|
this->ideal_core_id = 0;
|
|
this->flags = params.flags;
|
|
this->version = params.version;
|
|
this->program_id = params.program_id;
|
|
this->code_address = params.code_address;
|
|
this->code_size = params.code_num_pages * PageSize;
|
|
this->is_application = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
|
|
this->is_jit_debug = false;
|
|
|
|
/* Set thread fields. */
|
|
for (size_t i = 0; i < cpu::NumCores; i++) {
|
|
this->running_threads[i] = nullptr;
|
|
this->running_thread_idle_counts[i] = 0;
|
|
this->pinned_threads[i] = nullptr;
|
|
}
|
|
|
|
/* Set max memory based on address space type. */
|
|
switch ((params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask)) {
|
|
case ams::svc::CreateProcessFlag_AddressSpace32Bit:
|
|
case ams::svc::CreateProcessFlag_AddressSpace64BitDeprecated:
|
|
case ams::svc::CreateProcessFlag_AddressSpace64Bit:
|
|
this->max_process_memory = this->page_table.GetHeapRegionSize();
|
|
break;
|
|
case ams::svc::CreateProcessFlag_AddressSpace32BitWithoutAlias:
|
|
this->max_process_memory = this->page_table.GetHeapRegionSize() + this->page_table.GetAliasRegionSize();
|
|
break;
|
|
MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
|
|
}
|
|
|
|
/* Generate random entropy. */
|
|
KSystemControl::GenerateRandomBytes(this->entropy, sizeof(this->entropy));
|
|
|
|
/* Clear remaining fields. */
|
|
this->num_threads = 0;
|
|
this->peak_num_threads = 0;
|
|
this->num_created_threads = 0;
|
|
this->num_process_switches = 0;
|
|
this->num_thread_switches = 0;
|
|
this->num_fpu_switches = 0;
|
|
this->num_supervisor_calls = 0;
|
|
this->num_ipc_messages = 0;
|
|
|
|
this->is_signaled = false;
|
|
this->attached_object = nullptr;
|
|
this->exception_thread = nullptr;
|
|
this->is_suspended = false;
|
|
this->memory_release_hint = 0;
|
|
this->schedule_count = 0;
|
|
|
|
/* We're initialized! */
|
|
this->is_initialized = true;
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool) {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
MESOSPHERE_ASSERT(res_limit != nullptr);
|
|
MESOSPHERE_ABORT_UNLESS((params.code_num_pages * PageSize) / PageSize == params.code_num_pages);
|
|
|
|
/* Set members. */
|
|
this->memory_pool = pool;
|
|
this->resource_limit = res_limit;
|
|
this->system_resource_address = Null<KVirtualAddress>;
|
|
this->system_resource_num_pages = 0;
|
|
|
|
/* Setup page table. */
|
|
/* NOTE: Nintendo passes process ID despite not having set it yet. */
|
|
/* This goes completely unused, but even so... */
|
|
{
|
|
const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
|
|
const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr);
|
|
const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
|
|
auto *mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
|
|
auto *block_info_manager = std::addressof(Kernel::GetBlockInfoManager());
|
|
auto *pt_manager = std::addressof(Kernel::GetPageTableManager());
|
|
R_TRY(this->page_table.Initialize(this->process_id, as_type, enable_aslr, !enable_aslr, pool, params.code_address, params.code_num_pages * PageSize, mem_block_manager, block_info_manager, pt_manager));
|
|
}
|
|
auto pt_guard = SCOPE_GUARD { this->page_table.Finalize(); };
|
|
|
|
/* Ensure we can insert the code region. */
|
|
R_UNLESS(this->page_table.CanContain(params.code_address, params.code_num_pages * PageSize, KMemoryState_Code), svc::ResultInvalidMemoryRegion());
|
|
|
|
/* Map the code region. */
|
|
R_TRY(this->page_table.MapPageGroup(params.code_address, pg, KMemoryState_Code, KMemoryPermission_KernelRead));
|
|
|
|
/* Initialize capabilities. */
|
|
R_TRY(this->capabilities.Initialize(caps, num_caps, std::addressof(this->page_table)));
|
|
|
|
/* Initialize the process id. */
|
|
this->process_id = g_initial_process_id++;
|
|
MESOSPHERE_ABORT_UNLESS(InitialProcessIdMin <= this->process_id);
|
|
MESOSPHERE_ABORT_UNLESS(this->process_id <= InitialProcessIdMax);
|
|
|
|
/* Initialize the rest of the process. */
|
|
R_TRY(this->Initialize(params));
|
|
|
|
/* Open a reference to the resource limit. */
|
|
this->resource_limit->Open();
|
|
|
|
/* We succeeded! */
|
|
pt_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void KProcess::DoWorkerTask() {
|
|
MESOSPHERE_TODO_IMPLEMENT();
|
|
}
|
|
|
|
Result KProcess::CreateThreadLocalRegion(KProcessAddress *out) {
|
|
KThreadLocalPage *tlp = nullptr;
|
|
KProcessAddress tlr = Null<KProcessAddress>;
|
|
|
|
/* See if we can get a region from a partially used TLP. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
|
|
if (auto it = this->partially_used_tlp_tree.begin(); it != partially_used_tlp_tree.end()) {
|
|
tlr = it->Reserve();
|
|
MESOSPHERE_ABORT_UNLESS(tlr != Null<KProcessAddress>);
|
|
|
|
if (it->IsAllUsed()) {
|
|
tlp = std::addressof(*it);
|
|
this->partially_used_tlp_tree.erase(it);
|
|
this->fully_used_tlp_tree.insert(*tlp);
|
|
}
|
|
|
|
*out = tlr;
|
|
return ResultSuccess();
|
|
}
|
|
}
|
|
|
|
/* Allocate a new page. */
|
|
tlp = KThreadLocalPage::Allocate();
|
|
R_UNLESS(tlp != nullptr, svc::ResultOutOfMemory());
|
|
auto tlp_guard = SCOPE_GUARD { KThreadLocalPage::Free(tlp); };
|
|
|
|
/* Initialize the new page. */
|
|
R_TRY(tlp->Initialize(this));
|
|
|
|
/* Reserve a TLR. */
|
|
tlr = tlp->Reserve();
|
|
MESOSPHERE_ABORT_UNLESS(tlr != Null<KProcessAddress>);
|
|
|
|
/* Insert into our tree. */
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
if (tlp->IsAllUsed()) {
|
|
this->fully_used_tlp_tree.insert(*tlp);
|
|
} else {
|
|
this->partially_used_tlp_tree.insert(*tlp);
|
|
}
|
|
}
|
|
|
|
/* We succeeded! */
|
|
tlp_guard.Cancel();
|
|
*out = tlr;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void *KProcess::GetThreadLocalRegionPointer(KProcessAddress addr) {
|
|
KThreadLocalPage *tlp = nullptr;
|
|
{
|
|
KScopedSchedulerLock sl;
|
|
if (auto it = this->partially_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize))); it != this->partially_used_tlp_tree.end()) {
|
|
tlp = std::addressof(*it);
|
|
} else if (auto it = this->fully_used_tlp_tree.find(KThreadLocalPage(util::AlignDown(GetInteger(addr), PageSize))); it != this->fully_used_tlp_tree.end()) {
|
|
tlp = std::addressof(*it);
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
return static_cast<u8 *>(tlp->GetPointer()) + (GetInteger(addr) & (PageSize - 1));
|
|
}
|
|
|
|
void KProcess::SetPreemptionState() {
|
|
MESOSPHERE_TODO_IMPLEMENT();
|
|
}
|
|
|
|
}
|