[HAL]

- Implement HalpQuery8254Counter
- replace Ke386HaltProcessor() with __halt()
- remove excess #endif

svn path=/branches/ros-amd64-bringup/; revision=43504

reactos/hal/halamd64/generic/systimer.S

@@ -53,6 +53,34 @@ Done:
     ret 4
 .endfunc
 
+
+.globl _HalpQuery8254Counter
+.func HalpQuery8254Counter
+_HalpQuery8254Counter:
+
+    /* Save EFLAGS and disable interrupts */
+    pushfq
+    cli
+
+    /* Set timer data */
+    mov al, 0
+    out 0x43, al
+    jmp $+2
+
+    /* Read current timer */
+    in al, 0x40
+    jmp $+2
+    movzx ecx, al
+    in al, 0x40
+    mov ch, al
+
+    /* Return it and restore interrupt state */
+    mov eax, ecx
+    popfq
+    ret
+.endfunc
+
+
 .global _KeQueryPerformanceCounter
 .func KeQueryPerformanceCounter
 _KeQueryPerformanceCounter:

reactos/hal/halamd64/up/processor.c

@@ -70,7 +70,7 @@ HalProcessorIdle(VOID)
 {
     /* Enable interrupts and halt the processor */
     _enable();
-    Ke386HaltProcessor();
+    __halt();
 }
 
 /*

reactos/hal/halx86/mp/apic.c

@@ -882,7 +882,6 @@ SetInterruptGate(ULONG index, ULONG_PTR address)
   idt->Access = Access.Value;
   idt->ExtendedOffset = (USHORT)(address >> 16);
 #endif
-#endif
 }
 
 VOID HaliInitBSP(VOID)