1 files changed, 36 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Drivers/ArmGic/GicV2/ArmGicV2NonSecLib.c b/roms/edk2/ArmPkg/Drivers/ArmGic/GicV2/ArmGicV2NonSecLib.c
new file mode 100644
index 000000000..08f219c10
--- /dev/null
+++ b/roms/edk2/ArmPkg/Drivers/ArmGic/GicV2/ArmGicV2NonSecLib.c
@@ -0,0 +1,36 @@
+/** @file
+*
+*  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
+*
+*  SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <Uefi.h>
+#include <Library/IoLib.h>
+#include <Library/ArmGicLib.h>
+
+
+VOID
+EFIAPI
+ArmGicV2EnableInterruptInterface (
+  IN  INTN          GicInterruptInterfaceBase
+  )
+{
+  /*
+  * Enable the CPU interface in Non-Secure world
+  * Note: The ICCICR register is banked when Security extensions are implemented
+  */
+  MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR, 0x1);
+}
+
+VOID
+EFIAPI
+ArmGicV2DisableInterruptInterface (
+  IN  INTN          GicInterruptInterfaceBase
+  )
+{
+  // Disable Gic Interface
+  MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR, 0x0);
+  MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCPMR, 0x0);
+}