mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-09-20 07:49:26 -04:00
94 lines
3.9 KiB
C++
94 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern {
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namespace {
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constexpr u64 InitialProcessIdMin = 1;
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constexpr u64 InitialProcessIdMax = 0x50;
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std::atomic<u64> g_initial_process_id = InitialProcessIdMin;
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}
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void KProcess::Finalize() {
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MESOSPHERE_TODO_IMPLEMENT();
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}
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Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms) {
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MESOSPHERE_TODO_IMPLEMENT();
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}
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Result KProcess::Initialize(const ams::svc::CreateProcessParameter ¶ms, const KPageGroup &pg, const u32 *caps, s32 num_caps, KResourceLimit *res_limit, KMemoryManager::Pool pool) {
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MESOSPHERE_ASSERT_THIS();
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MESOSPHERE_ASSERT(res_limit != nullptr);
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MESOSPHERE_ABORT_UNLESS((params.code_num_pages * PageSize) / PageSize == params.code_num_pages);
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/* Set members. */
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this->memory_pool = pool;
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this->resource_limit = resource_limit;
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this->system_resource_address = Null<KVirtualAddress>;
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this->system_resource_num_pages = 0;
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/* Setup page table. */
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/* NOTE: Nintendo passes process ID despite not having set it yet. */
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/* This goes completely unused, but even so... */
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{
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const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
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const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr);
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const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
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auto *mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
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auto *block_info_manager = std::addressof(Kernel::GetBlockInfoManager());
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auto *pt_manager = std::addressof(Kernel::GetPageTableManager());
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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));
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}
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auto pt_guard = SCOPE_GUARD { this->page_table.Finalize(); };
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/* Ensure we can insert the code region. */
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R_UNLESS(this->page_table.CanContain(params.code_address, params.code_num_pages * PageSize, KMemoryState_Code), svc::ResultInvalidMemoryRegion());
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/* Map the code region. */
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R_TRY(this->page_table.MapPageGroup(params.code_address, pg, KMemoryState_Code, KMemoryPermission_KernelRead));
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/* Initialize capabilities. */
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R_TRY(this->capabilities.Initialize(caps, num_caps, std::addressof(this->page_table)));
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/* Initialize the process id. */
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this->process_id = g_initial_process_id++;
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MESOSPHERE_ABORT_UNLESS(InitialProcessIdMin <= this->process_id);
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MESOSPHERE_ABORT_UNLESS(this->process_id <= InitialProcessIdMax);
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/* Initialize the rest of the process. */
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R_TRY(this->Initialize(params));
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/* Open a reference to the resource limit. */
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this->resource_limit->Open();
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/* We succeeded! */
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pt_guard.Cancel();
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return ResultSuccess();
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}
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void KProcess::DoWorkerTask() {
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MESOSPHERE_TODO_IMPLEMENT();
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}
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void KProcess::SetPreemptionState() {
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MESOSPHERE_TODO_IMPLEMENT();
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}
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}
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