3 files changed, 7 insertions, 13 deletions
diff --git a/ArmPkg/Drivers/CpuDxe/CpuDxe.c b/ArmPkg/Drivers/CpuDxe/CpuDxe.c
index 2b43d2a9c9..d3f0ff505d 100644
--- a/ArmPkg/Drivers/CpuDxe/CpuDxe.c
+++ b/ArmPkg/Drivers/CpuDxe/CpuDxe.c
@@ -14,7 +14,6 @@
 
 #include "CpuDxe.h"
 
-BOOLEAN gExceptionContext = FALSE;
 BOOLEAN mInterruptState   = FALSE;
 
 EFI_STATUS
@@ -49,9 +48,7 @@ CpuEnableInterrupt (
   IN EFI_CPU_ARCH_PROTOCOL          *This
   )
 {
-  if (!gExceptionContext) {
-    ArmEnableInterrupts ();
-  }
+  ArmEnableInterrupts ();
 
   mInterruptState  = TRUE;
   return EFI_SUCCESS;
@@ -64,9 +61,7 @@ CpuDisableInterrupt (
   IN EFI_CPU_ARCH_PROTOCOL          *This
   )
 {
-  if (!gExceptionContext) {
-    ArmDisableInterrupts ();
-  }
+  ArmDisableInterrupts ();
 
   mInterruptState = FALSE;
   return EFI_SUCCESS;
diff --git a/ArmPkg/Drivers/CpuDxe/Exception.c b/ArmPkg/Drivers/CpuDxe/Exception.c
index 8859ca8667..9910bd2b88 100644
--- a/ArmPkg/Drivers/CpuDxe/Exception.c
+++ b/ArmPkg/Drivers/CpuDxe/Exception.c
@@ -15,8 +15,6 @@
 #include "CpuDxe.h" 
 #include <Library/CacheMaintenanceLib.h>
 
-extern BOOLEAN gExceptionContext;
-
 VOID
 ExceptionHandlersStart (
   VOID
@@ -142,8 +140,7 @@ CommonCExceptionHandler (
 {
   BOOLEAN Dispatched = FALSE;
  
-  gExceptionContext = TRUE; 
-  
+ 
   if (ExceptionType <= MAX_ARM_EXCEPTION) {
     if (gDebuggerExceptionHandlers[ExceptionType]) {
       //
@@ -162,8 +159,6 @@ CommonCExceptionHandler (
     ASSERT (FALSE);
   }
 
-  gExceptionContext = FALSE; 
-
   if (Dispatched) {
     //
     // We did work so this was an expected ExceptionType
diff --git a/BeagleBoardPkg/InterruptDxe/HardwareInterrupt.c b/BeagleBoardPkg/InterruptDxe/HardwareInterrupt.c
index 3e69515dfe..c87d564063 100644
--- a/BeagleBoardPkg/InterruptDxe/HardwareInterrupt.c
+++ b/BeagleBoardPkg/InterruptDxe/HardwareInterrupt.c
@@ -234,12 +234,16 @@ IrqInterruptHandler (
   
   Vector = MmioRead32(INTCPS_SIR_IRQ) & INTCPS_SIR_IRQ_MASK;
 
+  // Needed to prevent infinite nesting if Time Driver lowers TPL
+  MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
+
   InterruptHandler = gRegisteredInterruptHandlers[Vector];
   if (InterruptHandler != NULL) {
     // Call the registered interrupt handler.
     InterruptHandler(Vector, SystemContext);
   }
   
+  // Needed to clear after running the handler
   MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
 }