[kernel, hle] Initial 22.0.0 kernel changes and cmd stubs (#3761)

- KProcess::Run() and CreateThread() SVC now write the current thread handle to TLS+0x110
- KPageTableBase::LockForMapDeviceAddressSpace now checks for a new KPageTableBase boolean, m_allowed_exec_device_mapping
- Stub `am` + `acc` + `settings` cmd module that needs to work for qlaunch

Thanks to: @alula and @yellows8
Source for changes: https://github.com/Atmosphere-NX/Atmosphere/pull/2744, https://switchbrew.org/, https://yls8.mtheall.com/

Co-authored-by: PavelBARABANOV <pavelbarabanov94@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3761
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/core/hle/kernel/k_process.cpp b/src/core/hle/kernel/k_process.cpp
index bd50f74c27..70e578f22a 100644
--- a/src/core/hle/kernel/k_process.cpp
+++ b/src/core/hle/kernel/k_process.cpp
@@ -341,6 +341,11 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params, const KPa
     // Initialize capabilities.
     R_TRY(m_capabilities.InitializeForKip(caps, std::addressof(m_page_table)));
 
+    // Enable mapping device pages as executable on legacy processes.
+    if (m_capabilities.GetIntendedKernelMajorVersion() < 26) {
+        m_page_table.AllowDeviceMappingOfExecPages();
+    }
+
     // Initialize the process id.
     m_process_id = m_kernel.CreateNewUserProcessID();
     ASSERT(InitialProcessIdMin <= m_process_id);
@@ -437,6 +442,11 @@ Result KProcess::Initialize(const Svc::CreateProcessParameter& params,
     // Initialize capabilities.
     R_TRY(m_capabilities.InitializeForUser(user_caps, std::addressof(m_page_table)));
 
+    // Enable mapping device pages as executable on legacy processes.
+    if (m_capabilities.GetIntendedKernelMajorVersion() < 26) {
+        m_page_table.AllowDeviceMappingOfExecPages();
+    }
+
     // Initialize the process id.
     m_process_id = m_kernel.CreateNewUserProcessID();
     ASSERT(ProcessIdMin <= m_process_id);
@@ -989,6 +999,9 @@ Result KProcess::Run(s32 priority, size_t stack_size) {
     main_thread->GetContext().r[0] = 0;
     main_thread->GetContext().r[1] = thread_handle;
 
+    // Pass the thread handle to the thread local region.
+    this->GetMemory().Write32(GetInteger(main_thread->GetTlsAddress()) + 0x110, thread_handle);
+
     // Update our state.
     this->ChangeState((state == State::Created) ? State::Running : State::RunningAttached);
     ON_RESULT_FAILURE_2 {