Fixed TID0 not being on the All Threads list

- Also stopped VM8086 from busy polling

diff --git a/Kernel/arch/x86/mm_virt.c b/Kernel/arch/x86/mm_virt.c
index fdc19b1..3c893f8 100644 (file)
--- a/Kernel/arch/x86/mm_virt.c
+++ b/Kernel/arch/x86/mm_virt.c
@@ -919,7 +919,7 @@ tVAddr MM_MapTemp(tPAddr PAddr)
                        return TEMP_MAP_ADDR + (i << 12);
                }
                Mutex_Release( &glTempMappings );
-               Threads_Yield();        // TODO: Less expensive
+               Threads_Yield();        // TODO: Use a sleep queue here instead
        }
 }
 

diff --git a/Kernel/arch/x86/vm8086.c b/Kernel/arch/x86/vm8086.c
index 5253a62..469ab43 100644 (file)
--- a/Kernel/arch/x86/vm8086.c
+++ b/Kernel/arch/x86/vm8086.c
@@ -153,6 +153,7 @@ void VM8086_GPF(tRegs *Regs)
                //Log_Log("VM8086", "gpVM8086_State = %p, gVM8086_CallingThread = %i",
                //      gpVM8086_State, gVM8086_CallingThread);
                if( gpVM8086_State ) {
+                        int    ret;
                        gpVM8086_State->AX = Regs->eax; gpVM8086_State->CX = Regs->ecx;
                        gpVM8086_State->DX = Regs->edx; gpVM8086_State->BX = Regs->ebx;
                        gpVM8086_State->BP = Regs->ebp;
@@ -160,8 +161,9 @@ void VM8086_GPF(tRegs *Regs)
                        gpVM8086_State->DS = Regs->ds;  gpVM8086_State->ES = Regs->es;
                        gpVM8086_State = NULL;
                        // Ensure the caller wakes
-                       //while(Threads_WakeTID(gVM8086_CallingThread) == -EALREADY)
-                       //      Threads_Yield();
+                       while( (ret = Threads_WakeTID(gVM8086_CallingThread)) == -EALREADY) {
+                               Threads_Yield();
+                       }
                }
                
                //Log_Log("VM8086", "Waiting for something to do");
@@ -406,8 +408,8 @@ void VM8086_Int(tVM8086 *State, Uint8 Interrupt)
        gpVM8086_State = State;
        gVM8086_CallingThread = Threads_GetTID();
        Threads_WakeTID( gVM8086_WorkerPID );
-       while( gpVM8086_State != NULL )
-               Threads_Yield();
+       Threads_Sleep();
+       while( gpVM8086_State != NULL ) Threads_Sleep();
        
        Mutex_Release( &glVM8086_Process );
 }

diff --git a/Kernel/threads.c b/Kernel/threads.c
index 610f7b5..9fd052b 100644 (file)
--- a/Kernel/threads.c
+++ b/Kernel/threads.c
@@ -90,6 +90,7 @@ void Threads_Init(void)
        
        // Create Initial Task
        gActiveThreads = &gThreadZero;
+       gAllThreads = &gThreadZero;
        //giFreeTickets = gThreadZero.NumTickets;
        giNumActiveThreads = 1;
                
@@ -313,6 +314,8 @@ tThread *Threads_GetThread(Uint TID)
                if(thread->TID == TID)
                        return thread;
        }
+
+       Log("Unable to find TID %i on main list\n", TID);
        
        return NULL;
 }