We now define KUSER_SHARED_DATA per architecture, since the address isn't portable. Now SharedUserData works on ARM.

Implemented KeAcquireInSTackQueuedSpinLock, KeAcquireInStackQueuedSpinLockRaiseToSYnc and KeReleaseInStackQueuedSpinLock based on x86 UP versions.
On ARM, the PCR is fully exposed, so some APIs are always-inlined direct-memory-access (unlike x86 which has the fs selector, and undocumented parts of the PCR). This means we can define several macros -- fixed the headers to allow this, by defining the previous stuff for x86 only.
Setup registry data in the ARM loader block.
The ARM port boots all the way through ExpInitializeExecutive until reaching MmInit1. The boot-registry is correctly loaded and parsed, as are NLS files!

svn path=/trunk/; revision=32379

reactos/boot/freeldr/freeldr/arch/arm/loader.c

@@ -28,7 +28,7 @@ extern ARM_TRANSLATION_TABLE ArmTranslationTable;
 extern ARM_COARSE_PAGE_TABLE BootTranslationTable, KernelTranslationTable;
 extern ROS_KERNEL_ENTRY_POINT KernelEntryPoint;
 extern ULONG_PTR KernelBase;
-extern ULONG_PTR AnsiData, OemData, UnicodeData;
+extern ULONG_PTR AnsiData, OemData, UnicodeData, RegistryData;
 
 ULONG SizeBits[] =
 {
@@ -290,8 +290,9 @@ ArmPrepareForReactOS(IN BOOLEAN Setup)
     //
     
     //
-    // TODO: Setup registry data
+    // Setup registry data
     //
+    ArmLoaderBlock->RegistryBase = (PVOID)((ULONG_PTR)RegistryData | KSEG0_BASE);
     
     //
     // TODO: Setup ARC Hardware tree data

reactos/boot/freeldr/freeldr/reactos/imageldr.c

@@ -16,7 +16,7 @@ LdrPEGetExportByName(
 );
 
 extern BOOLEAN FrLdrLoadDriver(PCHAR szFileName, INT nPos);
-PVOID AnsiData, OemData, UnicodeData;
+PVOID AnsiData, OemData, UnicodeData, RegistryData;
 /* MODULE MANAGEMENT **********************************************************/
 
 PLOADER_MODULE
@@ -110,6 +110,11 @@ FrLdrLoadModule(FILE *ModuleImage,
     {
         UnicodeData = (PVOID)NextModuleBase;
     }
+    else if (!(_stricmp(NameBuffer, "system")) ||
+             !(_stricmp(NameBuffer, "system.hiv")))
+    {
+        RegistryData = (PVOID)NextModuleBase;
+    }
 
     /* Load the file image */
     FsReadFile(ModuleImage, LocalModuleSize, NULL, (PVOID)NextModuleBase);

reactos/hal/halarm/generic/hal.c

@@ -753,33 +753,39 @@ KeAcquireSpinLockRaiseToSynch(
 }
 
 
+/*
+ * @implemented
+ */
 VOID
 FASTCALL
-KeAcquireInStackQueuedSpinLock(
+KeAcquireInStackQueuedSpinLock(IN PKSPIN_LOCK SpinLock,
-    IN PKSPIN_LOCK SpinLock,
+                               IN PKLOCK_QUEUE_HANDLE LockHandle)
-    IN PKLOCK_QUEUE_HANDLE LockHandle
-    )
 {
-  UNIMPLEMENTED;
+    /* Simply raise to dispatch */
+    LockHandle->OldIrql = KeSwapIrql(DISPATCH_LEVEL);
 }
 
+/*
+ * @implemented
+ */
 VOID
 FASTCALL
-KeAcquireInStackQueuedSpinLockRaiseToSynch(
+KeAcquireInStackQueuedSpinLockRaiseToSynch(IN PKSPIN_LOCK SpinLock,
-    IN PKSPIN_LOCK SpinLock,
+                                           IN PKLOCK_QUEUE_HANDLE LockHandle)
-    IN PKLOCK_QUEUE_HANDLE LockHandle
-    )
 {
-   UNIMPLEMENTED;
+    /* Simply raise to synch */
+    LockHandle->OldIrql = KeSwapIrql(SYNCH_LEVEL);
 }
 
+/*
+ * @implemented
+ */
 VOID
 FASTCALL
-KeReleaseInStackQueuedSpinLock(
+KeReleaseInStackQueuedSpinLock(IN PKLOCK_QUEUE_HANDLE LockHandle)
-    IN PKLOCK_QUEUE_HANDLE LockHandle
-    )
 {
-  UNIMPLEMENTED;
+    /* Simply lower IRQL back */
+    KeSwapIrql(LockHandle->OldIrql);
 }
 
 VOID

reactos/include/ddk/winddk.h

@@ -5460,6 +5460,20 @@ KeGetCurrentProcessorNumber(VOID)
 #endif
 }
     
+NTHALAPI
+KIRQL
+DDKAPI
+KeGetCurrentIrql(
+    VOID);
+    
+NTKERNELAPI
+PRKTHREAD
+NTAPI
+KeGetCurrentThread(
+    VOID);
+    
+#define KI_USER_SHARED_DATA               0xffdf0000
+
 #elif defined(__x86_64__)
 
 typedef struct _KFLOATING_SAVE {
@@ -5580,6 +5594,8 @@ KeGetCurrentProcessorNumber(VOID)
 #define PAGE_SIZE                         0x1000
 #define PAGE_SHIFT                        12L
 
+#define SharedUserData                    ((KUSER_SHARED_DATA * CONST) KI_USER_SHARED_DATA)
+    
 extern NTKERNELAPI PVOID MmHighestUserAddress;
 extern NTKERNELAPI PVOID MmSystemRangeStart;
 extern NTKERNELAPI ULONG_PTR MmUserProbeAddress;
@@ -5593,8 +5609,6 @@ extern NTKERNELAPI ULONG_PTR MmUserProbeAddress;
 #define MM_KSEG0_BASE       MM_SYSTEM_RANGE_START
 #define MM_SYSTEM_SPACE_END 0xFFFFFFFF
 
-#define KI_USER_SHARED_DATA               0xffdf0000
-#define SharedUserData                    ((KUSER_SHARED_DATA * CONST) KI_USER_SHARED_DATA)
 
 #define EFLAG_SIGN                        0x8000
 #define EFLAG_ZERO                        0x4000
@@ -5651,11 +5665,7 @@ typedef struct _PCIBUSDATA
     PVOID Reserved[4];
 } PCIBUSDATA, *PPCIBUSDATA;
 
-NTHALAPI
+
-KIRQL
-DDKAPI
-KeGetCurrentIrql(
-  VOID);
 
 #if !defined(__INTERLOCKED_DECLARED)
 #define __INTERLOCKED_DECLARED
@@ -9087,12 +9097,6 @@ VOID
 NTAPI
 KeFlushWriteBuffer(VOID);
 
-NTKERNELAPI
-PRKTHREAD
-NTAPI
-KeGetCurrentThread(
-  VOID);
-
 NTKERNELAPI
 ULONG
 NTAPI

reactos/include/ndk/ketypes.h

@@ -55,11 +55,6 @@ Author:
 //
 #define THREAD_ALERT_INCREMENT          2
 
-//
-// User Shared Data in Kernel-Mode
-//
-#define KI_USER_SHARED_DATA             0xffdf0000
-
 //
 // Physical memory offset of KUSER_SHARED_DATA
 //

reactos/include/reactos/armddk.h

@@ -18,6 +18,7 @@
 // FIXME: mmtypes.h?
 //
 #define KIPCR                   0xFFFFF000
+#define KI_USER_SHARED_DATA     0xFFFFE000
 #define USPCR                   0x7FFF0000
 #define PCR                     ((volatile KPCR * const)USPCR)
 #define USERPCR                 ((volatile KPCR * const)KIPCR)
@@ -30,7 +31,12 @@
 //
 // Just read it from the PCR
 //
-#define KeGetCurrentProcessorNumber() ((ULONG)(PCR->Number))
+#define KeGetCurrentProcessorNumber()  PCR->Number
+#define KeGetCurrentIrql()             PCR->CurrentIrql
+#define _KeGetCurrentThread()           PCR->CurrentThread
+#define _KeGetPreviousMode()            PCR->CurrentThread->PreviousMode
+#define _KeIsExecutingDpc()             (PCR->DpcRoutineActive != 0)
+#define KeGetDcacheFillSize()          PCR->DcacheFillSize
 
 //
 // Stub

reactos/ntoskrnl/include/internal/ke_x.h

@@ -1526,6 +1526,7 @@ KiComputeNewPriority(IN PKTHREAD Thread,
     return Priority;
 }
 
+#ifndef _M_ARM
 PRKTHREAD
 FORCEINLINE
 KeGetCurrentThread(VOID)
@@ -1546,6 +1547,7 @@ KeGetPreviousMode(VOID)
     /* Return the current mode */
     return KeGetCurrentThread()->PreviousMode;
 }
+#endif
 
 VOID
 FORCEINLINE