feat(kernel): Architectural changes, and introducing a kKernelVM.

see code for more details.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

13 files changed, 96 insertions, 119 deletions

diff --git a/dev/kernel/ArchKit/ArchKit.h b/dev/kernel/ArchKit/ArchKit.h
index 41a36e69..d511658f 100644
--- a/dev/kernel/ArchKit/ArchKit.h
+++ b/dev/kernel/ArchKit/ArchKit.h
@@ -77,8 +77,14 @@ struct HalSyscallEntry final {
   operator bool() { return fHooked; }
 };
 
+EXTERN_C Kernel::HAL::StackFramePtr mp_get_current_context(Kernel::Int64 pid);
+
 inline Kernel::Array<HalSyscallEntry, kMaxDispatchCallCount> kSysCalls;
 
 inline Kernel::Array<HalSyscallEntry, kMaxDispatchCallCount> kKernCalls;
 
-EXTERN_C Kernel::HAL::StackFramePtr mp_get_current_context(Kernel::Int64 pid);
+#ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
+
+inline Kernel::VoidPtr kKernelVM = nullptr;
+
+#endif  // __NE_VIRTUAL_MEMORY_SUPPORT__
\ No newline at end of file
diff --git a/dev/kernel/FirmwareKit/Handover.h b/dev/kernel/FirmwareKit/Handover.h
index d3ccc724..cda27e52 100644
--- a/dev/kernel/FirmwareKit/Handover.h
+++ b/dev/kernel/FirmwareKit/Handover.h
@@ -63,6 +63,8 @@ struct BootInfoHeader final {
   SizeT   f_KernelSz;
   VoidPtr f_StartupImage;
   SizeT   f_StartupSz;
+  VoidPtr f_StackTop;
+  SizeT   f_StackSz;
 
   WideChar f_FirmwareVendorName[32];
   SizeT    f_FirmwareVendorLen;
diff --git a/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc b/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
index e4ad1024..ada2ee3f 100644
--- a/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
+++ b/dev/kernel/HALKit/AMD64/HalApplicationProcessor.cc
@@ -113,27 +113,17 @@ EXTERN_C HAL::StackFramePtr mp_get_current_context(Int64 thrdid) {
 /// @param thrdid The thread ID.
 /***********************************************************************************/
 
-EXTERN_C BOOL mp_register_process(HAL::StackFramePtr stack_frame, ProcessID thrdid) {
+EXTERN_C BOOL mp_register_task(HAL::StackFramePtr stack_frame, ProcessID thrdid) {
   if (thrdid > kSMPCount) return NO;
 
-  if (!mp_is_smp()) {
-    if (stack_frame) {
-      kHWThread[thrdid].mFramePtr = stack_frame;
-      kHWThread[thrdid].mThreadID = thrdid;
-      HardwareThreadScheduler::The()[thrdid].Leak()->Busy(NO);
+  kHWThread[thrdid].mFramePtr = stack_frame;
+  kHWThread[thrdid].mThreadID = thrdid;
 
-      sched_jump_to_task(stack_frame);
+  HardwareThreadScheduler::The()[thrdid].Leak()->Busy(NO);
 
-      return YES;
-    }
-  } else {
-    kHWThread[thrdid].mFramePtr = stack_frame;
-    kHWThread[thrdid].mThreadID = thrdid;
-
-    return YES;
-  }
+  sched_jump_to_task(stack_frame);
 
-  return NO;
+  return YES;
 }
 
 /***********************************************************************************/
diff --git a/dev/kernel/HALKit/AMD64/HalCommonAPI.asm b/dev/kernel/HALKit/AMD64/HalCommonAPI.asm
index 230f50ed..d0ce2418 100644
--- a/dev/kernel/HALKit/AMD64/HalCommonAPI.asm
+++ b/dev/kernel/HALKit/AMD64/HalCommonAPI.asm
@@ -56,6 +56,8 @@ extern hal_system_call_enter
 global mp_system_call_handler
 
 mp_system_call_handler:
+    push rbp
+    mov  rbp, rsp
 
     push r8
     push r9
@@ -77,7 +79,9 @@ mp_system_call_handler:
     pop r9
     pop r8
 
-    o64 sysret
+    pop rbp
+
+    o64 iret
 
 
 section .text
@@ -88,12 +92,40 @@ sched_jump_to_task:
     push rbp
     mov  rbp, rsp
 
-    mov ax, 0x20
+    mov ax, 0x30
     mov ds, ax
     mov es, ax
     mov fs, ax
     mov gs, ax
 
+    mov ax, 0x18
+    ltr ax
+
+    push 0x30
+    mov rdx, [rcx + 0x08]
+    push rdx
+    o64 pushf
+    push 0x28
+    mov rdx, [rcx + 0x00]
+    push rdx
+
+    call sched_recover_registers
+
+    o64 iret
+
+global sched_idle_task
+
+sched_idle_task:
+    mov ax, cs
+    and ax, 3
+
+    jmp $
+    ret
+
+sched_recover_registers:
+    push rbp
+    mov  rbp, rsp
+
     mov  r8, [rcx + 0x10]
     mov  r9, [rcx + 0x18]
     mov r10, [rcx + 0x20]
@@ -103,14 +135,6 @@ sched_jump_to_task:
     mov r14, [rcx + 0x40]
     mov r15, [rcx + 0x48]
 
-    mov rax, [rcx + 0x00]
-    mov rsp, [rcx + 0x08]
-
-    o64 sysret
-    int 3 ;; Never continue here.
+    pop rbp
 
-global sched_idle_task
-
-sched_idle_task:
-    jmp $
-    ret
+    ret
\ No newline at end of file
diff --git a/dev/kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc b/dev/kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
index 51fc4f0e..633adccb 100644
--- a/dev/kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
+++ b/dev/kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
@@ -37,14 +37,6 @@ EXTERN_C Kernel::Void idt_handle_gpf(Kernel::UIntPtr rsp) {
 
   auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
-  if (!process) {
-    ke_panic(RUNTIME_CHECK_BAD_BEHAVIOR, "General Access Fault.");
-  }
-  if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
-      process.Leak().Signal.SignalID == SIGTRAP) {
-    dbg_break_point();
-  }
-
   Kernel::kout << "Kernel: General Access Fault.\r";
 
   process.Leak().Signal.SignalArg = rsp;
@@ -63,15 +55,6 @@ EXTERN_C void idt_handle_pf(Kernel::UIntPtr rsp) {
 
   auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
-  if (!process) {
-    ke_panic(RUNTIME_CHECK_BAD_BEHAVIOR, "Access Fault.");
-  }
-
-  if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
-      process.Leak().Signal.SignalID == SIGTRAP) {
-    dbg_break_point();
-  }
-
   Kernel::kout << "Kernel: Page Fault.\r";
   Kernel::kout << "Kernel: SIGKILL\r";
 
@@ -104,14 +87,6 @@ EXTERN_C void idt_handle_math(Kernel::UIntPtr rsp) {
 
   auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
-  if (!process) {
-    ke_panic(RUNTIME_CHECK_BAD_BEHAVIOR, "Math Fault.");
-  }
-  if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
-      process.Leak().Signal.SignalID == SIGTRAP) {
-    dbg_break_point();
-  }
-
   Kernel::kout << "Kernel: Math error (division by zero?).\r";
 
   process.Leak().Signal.SignalArg = rsp;
@@ -130,15 +105,6 @@ EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp) {
 
   auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
-  if (!process) {
-    ke_panic(RUNTIME_CHECK_BAD_BEHAVIOR, "Generic Fault.");
-  }
-
-  if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
-      process.Leak().Signal.SignalID == SIGTRAP) {
-    dbg_break_point();
-  }
-
   (Void)(Kernel::kout << "Kernel: Process RSP: " << Kernel::hex_number(rsp) << Kernel::kendl);
   Kernel::kout << "Kernel: Access Process Fault.\r";
 
@@ -152,19 +118,9 @@ EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp) {
 }
 
 EXTERN_C Kernel::Void idt_handle_breakpoint(Kernel::UIntPtr rip) {
-  auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-
-  if (!process) {
-    while (YES)
-      ;
-  }
-
   hal_idt_send_eoi(3);
 
-  if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
-      process.Leak().Signal.SignalID == SIGTRAP) {
-    dbg_break_point();
-  }
+  auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
   (Void)(Kernel::kout << "Kernel: Process RIP: " << Kernel::hex_number(rip) << Kernel::kendl);
 
@@ -189,11 +145,6 @@ EXTERN_C void idt_handle_ud(Kernel::UIntPtr rsp) {
 
   auto& process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
-  if (!process) {
-    while (YES)
-      ;
-  }
-
   if (process.Leak().Signal.SignalID == SIGKILL || process.Leak().Signal.SignalID == SIGABRT ||
       process.Leak().Signal.SignalID == SIGTRAP) {
     dbg_break_point();
diff --git a/dev/kernel/HALKit/AMD64/HalInterruptAPI.asm b/dev/kernel/HALKit/AMD64/HalInterruptAPI.asm
index a6b194d3..5e82f969 100644
--- a/dev/kernel/HALKit/AMD64/HalInterruptAPI.asm
+++ b/dev/kernel/HALKit/AMD64/HalInterruptAPI.asm
@@ -20,8 +20,6 @@ __NE_INT_%1:
 
     std
 
-    add rsp, 8
-
     o64 iret
 %endmacro
 
@@ -61,8 +59,6 @@ __NE_INT_0:
     
     std
 
-    add rsp, 8
-
     o64 iret
 
 __NE_INT_1:
@@ -83,8 +79,6 @@ __NE_INT_2:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 ;; @brief Triggers a breakpoint and freeze the process. RIP is also fetched.
@@ -96,8 +90,6 @@ __NE_INT_3:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 __NE_INT_4:
@@ -109,16 +101,12 @@ __NE_INT_4:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 __NE_INT_5:
     cld
     std
 
-    add rsp, 8
-
     o64 iret
 
 ;; Invalid opcode interrupt
@@ -130,8 +118,6 @@ __NE_INT_6:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 __NE_INT_7:
@@ -142,8 +128,6 @@ __NE_INT_7:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 ;; Invalid opcode interrupt
@@ -156,8 +140,6 @@ __NE_INT_8:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 IntNormal 9
@@ -187,8 +169,6 @@ __NE_INT_14:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 IntNormal 15
@@ -247,8 +227,6 @@ __NE_INT_40:
 
     std
 
-    add rsp, 8
-
     o64 iret
 
 IntNormal 41
diff --git a/dev/kernel/HALKit/AMD64/HalKernelMain.cc b/dev/kernel/HALKit/AMD64/HalKernelMain.cc
index 4de43f27..5394645a 100644
--- a/dev/kernel/HALKit/AMD64/HalKernelMain.cc
+++ b/dev/kernel/HALKit/AMD64/HalKernelMain.cc
@@ -38,9 +38,9 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   Boot::ExitBootServices(handover_hdr->f_HardwareTables.f_ImageKey,
                          handover_hdr->f_HardwareTables.f_ImageHandle);
 
-  kKernelCR3 = kHandoverHeader->f_PageStart;
+  kKernelVM = kHandoverHeader->f_PageStart;
 
-  hal_write_cr3(kKernelCR3);
+  hal_write_cr3(kKernelVM);
 
   /************************************** */
   /*     INITIALIZE BIT MAP.              */
@@ -54,7 +54,12 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
   /*     INITIALIZE GDT AND SEGMENTS. */
   /************************************** */
 
-  STATIC CONST auto kGDTEntriesCount = 6;
+  STATIC CONST auto kGDTEntriesCount = 8;
+
+  STATIC HAL::Detail::NE_TSS kKernelTSS{};
+
+  kKernelTSS.fRsp0 = (UInt64) kHandoverHeader->f_StackTop;
+  kKernelTSS.fIopb = sizeof(HAL::Detail::NE_TSS);
 
   /* The GDT, mostly descriptors for user and kernel segments. */
   STATIC Kernel::HAL::Detail::NE_GDT_ENTRY ALIGN(0x08) kGDTArray[kGDTEntriesCount] = {
@@ -76,6 +81,8 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
        .fAccessByte = 0x92,
        .fFlags      = 0xCF,
        .fBaseHigh   = 0},  // Kernel data
+      {},                // TSS data low
+      {},                // TSS data high
       {.fLimitLow   = 0x0,
        .fBaseLow    = 0,
        .fBaseMid    = 0,
@@ -90,6 +97,20 @@ EXTERN_C Int32 hal_init_platform(Kernel::HEL::BootInfoHeader* handover_hdr) {
        .fBaseHigh   = 0},  // User data
   };
 
+  kGDTArray[3].fLimitLow   = sizeof(HAL::Detail::NE_TSS) - 1;
+  kGDTArray[3].fBaseLow    = ((UIntPtr) &kKernelTSS) & 0xFFFF;
+  kGDTArray[3].fBaseMid    = (((UIntPtr) &kKernelTSS) >> 16) & 0xFF;
+  kGDTArray[3].fAccessByte = 0x89;  // Present, type 9 = 64-bit available TSS
+  kGDTArray[3].fFlags      = 0x20 | ((((UIntPtr) &kKernelTSS) >> 24) & 0x0F);
+  kGDTArray[3].fBaseHigh   = (((UIntPtr) &kKernelTSS) >> 24) & 0xFF;
+
+  kGDTArray[4].fLimitLow   = ((UIntPtr) &kKernelTSS >> 32) & 0xFFFF;
+  kGDTArray[4].fBaseLow    = 0;
+  kGDTArray[4].fBaseMid    = 0;
+  kGDTArray[4].fAccessByte = 0;
+  kGDTArray[4].fFlags      = 0;
+  kGDTArray[4].fBaseHigh   = 0;
+
   // Load memory descriptors.
   Kernel::HAL::Register64 gdt_reg;
 
diff --git a/dev/kernel/HALKit/AMD64/Processor.h b/dev/kernel/HALKit/AMD64/Processor.h
index c574f8d5..3bf0ad3e 100644
--- a/dev/kernel/HALKit/AMD64/Processor.h
+++ b/dev/kernel/HALKit/AMD64/Processor.h
@@ -285,6 +285,4 @@ EXTERN_C ATTRIBUTE(naked) Kernel::Void hal_load_gdt(Kernel::HAL::Register64 ptr)
 inline Kernel::VoidPtr kKernelBitMpStart = nullptr;
 inline Kernel::UIntPtr kKernelBitMpSize  = 0UL;
 
-inline Kernel::VoidPtr kKernelCR3 = nullptr;
-
 #endif  // __NE_AMD64__ */
\ No newline at end of file
diff --git a/dev/kernel/HALKit/ARM64/HalApplicationProcessor.cc b/dev/kernel/HALKit/ARM64/HalApplicationProcessor.cc
index 5be41e4e..70a5e2d9 100644
--- a/dev/kernel/HALKit/ARM64/HalApplicationProcessor.cc
+++ b/dev/kernel/HALKit/ARM64/HalApplicationProcessor.cc
@@ -113,7 +113,7 @@ EXTERN_C HAL::StackFramePtr mp_get_current_context(ProcessID thrdid) {
 /// @param thrdid The thread ID.

 /***********************************************************************************/

 

-EXTERN_C Bool mp_register_process(HAL::StackFramePtr stack_frame, ProcessID thrdid) {

+EXTERN_C Bool mp_register_task(HAL::StackFramePtr stack_frame, ProcessID thrdid) {

   MUST_PASS(Detail::kGICEnabled);

 

   if (!stack_frame) return NO;

diff --git a/dev/kernel/HALKit/ARM64/Processor.h b/dev/kernel/HALKit/ARM64/Processor.h
index f52b854f..ba1ed11e 100644
--- a/dev/kernel/HALKit/ARM64/Processor.h
+++ b/dev/kernel/HALKit/ARM64/Processor.h
@@ -72,8 +72,6 @@ inline Void hal_wfi(Void) {
 inline Kernel::VoidPtr kKernelBitMpStart = nullptr;
 inline Kernel::UIntPtr kKernelBitMpSize  = 0UL;
 
-inline Kernel::VoidPtr kKernelPDE = nullptr;
-
 #include <HALKit/ARM64/Paging.h>
 
 #endif  // __NE_ARM64__
\ No newline at end of file
diff --git a/dev/kernel/KernelKit/KernelTaskScheduler.h b/dev/kernel/KernelKit/KernelTaskScheduler.h
index f4ff4125..57b83ccb 100644
--- a/dev/kernel/KernelKit/KernelTaskScheduler.h
+++ b/dev/kernel/KernelKit/KernelTaskScheduler.h
@@ -16,7 +16,7 @@
 
 namespace Kernel {
 class KERNEL_TASK final {
-public:
+ public:
   Char               Name[kSchedNameLen] = {"KERNEL_TASK"};
   ProcessSubsystem   SubSystem{ProcessSubsystem::kProcessSubsystemDriver};
   HAL::StackFramePtr StackFrame{nullptr};
diff --git a/dev/kernel/src/HardwareThreadScheduler.cc b/dev/kernel/src/HardwareThreadScheduler.cc
index b801632c..23365af5 100644
--- a/dev/kernel/src/HardwareThreadScheduler.cc
+++ b/dev/kernel/src/HardwareThreadScheduler.cc
@@ -21,7 +21,7 @@ namespace Kernel {
 /***********************************************************************************/
 
 EXTERN_C Bool hal_check_stack(HAL::StackFramePtr frame);
-EXTERN_C Bool mp_register_process(HAL::StackFramePtr frame, ProcessID pid);
+EXTERN_C Bool mp_register_task(HAL::StackFramePtr frame, ProcessID pid);
 
 STATIC HardwareThreadScheduler kHardwareThreadScheduler;
 
@@ -94,7 +94,7 @@ Void HardwareThread::Wake(const bool wakeup) noexcept {
 Bool HardwareThread::Switch(HAL::StackFramePtr frame) {
   this->fStack = frame;
 
-  Bool ret = mp_register_process(fStack, this->fPID);
+  Bool ret = mp_register_task(fStack, this->fPID);
 
   return ret;
 }
diff --git a/dev/kernel/src/UserProcessScheduler.cc b/dev/kernel/src/UserProcessScheduler.cc
index 0de38532..a901e6d0 100644
--- a/dev/kernel/src/UserProcessScheduler.cc
+++ b/dev/kernel/src/UserProcessScheduler.cc
@@ -21,6 +21,7 @@
 #include <KernelKit/ProcessScheduler.h>
 #include <NewKit/KString.h>
 #include <SignalKit/Signals.h>
+#include "NewKit/Macros.h"
 
 ///! BUGS: 0
 
@@ -125,7 +126,7 @@ ErrorOr<VoidPtr> USER_PROCESS::New(SizeT sz, SizeT pad_amount) {
   if (this->UsedMemory > kSchedMaxMemoryLimit) return ErrorOr<VoidPtr>(-kErrorHeapOutOfMemory);
 
 #ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
-  auto vm_register = kKernelCR3;
+  auto vm_register = kKernelVM;
   hal_write_cr3(this->VMRegister);
 
   auto ptr = mm_new_ptr(sz, Yes, Yes, pad_amount);
@@ -271,7 +272,7 @@ Void USER_PROCESS::Exit(const Int32& exit_code) {
   auto memory_ptr_list = this->HeapTree;
 
 #ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
-  auto pd = kKernelCR3;
+  auto pd = kKernelVM;
   hal_write_cr3(this->VMRegister);
 #endif
 
@@ -384,7 +385,7 @@ ProcessID UserProcessScheduler::Spawn(const Char* name, VoidPtr code, VoidPtr im
   rt_copy_memory(reinterpret_cast<VoidPtr>(const_cast<Char*>(name)), process.Name, len);
 
 #ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
-  process.VMRegister = kKernelCR3;
+  process.VMRegister = kKernelVM;
 #else
   process.VMRegister = 0UL;
 #endif  // ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
@@ -401,6 +402,15 @@ ProcessID UserProcessScheduler::Spawn(const Char* name, VoidPtr code, VoidPtr im
   process.StackFrame->IP = reinterpret_cast<UIntPtr>(code);
   process.StackFrame->SP = reinterpret_cast<UIntPtr>(&process.StackReserve[0] + process.StackSize);
 
+#ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
+  HAL::mm_map_page((VoidPtr) process.StackFrame->IP,
+                   (VoidPtr) HAL::mm_get_phys_address((VoidPtr) process.StackFrame->IP),
+                   HAL::kMMFlagsUser | HAL::kMMFlagsPresent);
+  HAL::mm_map_page((VoidPtr) process.StackFrame->SP,
+                   (VoidPtr) HAL::mm_get_phys_address((VoidPtr) process.StackFrame->SP),
+                   HAL::kMMFlagsUser | HAL::kMMFlagsPresent);
+#endif  // ifdef __NE_VIRTUAL_MEMORY_SUPPORT__
+
   process.StackSize = kSchedMaxStackSz;
 
   rt_set_memory(process.StackReserve, 0, process.StackSize);
@@ -494,6 +504,8 @@ SizeT UserProcessScheduler::Run() noexcept {
     if (UserProcessHelper::CanBeScheduled(process)) {
       kout << process.Name << " will be scheduled...\r";
 
+      this->TheCurrentProcess() = process;
+
       if (UserProcessHelper::Switch(process.StackFrame, process.ProcessId)) {
         process.PTime = static_cast<Int32>(process.Affinity);
 
@@ -606,6 +618,7 @@ Bool UserProcessHelper::Switch(HAL::StackFramePtr frame_ptr, PID new_pid) {
     if (HardwareThreadScheduler::The()[index].Leak()->IsBusy()) {
       (Void)(kout << "AP_" << hex_number(index));
       kout << " is busy\r";
+
       continue;
     }
 
@@ -627,10 +640,6 @@ Bool UserProcessHelper::Switch(HAL::StackFramePtr frame_ptr, PID new_pid) {
 
     HardwareThreadScheduler::The()[index].Leak()->fPTime =
         UserProcessScheduler::The().TheCurrentTeam().AsArray()[new_pid].PTime;
-    HardwareThreadScheduler::The()[index].Leak()->Wake(YES);
-
-    UserProcessScheduler::The().TheCurrentProcess() =
-        UserProcessScheduler::The().TheCurrentTeam().AsArray()[new_pid];
 
     return YES;
   }