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-rw-r--r--ArmPkg/Drivers/PL390Gic/PL390GicSec.c13
-rw-r--r--ArmPkg/Include/Library/ArmGicLib.h6
2 files changed, 19 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/PL390Gic/PL390GicSec.c b/ArmPkg/Drivers/PL390Gic/PL390GicSec.c
index c137c95..25038bd 100644
--- a/ArmPkg/Drivers/PL390Gic/PL390GicSec.c
+++ b/ArmPkg/Drivers/PL390Gic/PL390GicSec.c
@@ -109,6 +109,19 @@ ArmGicEnableInterruptInterface (
VOID
EFIAPI
+ArmGicDisableInterruptInterface (
+ IN INTN GicInterruptInterfaceBase
+ )
+{
+ UINT32 ControlValue;
+
+ // Disable CPU interface in Secure world and Non-secure World
+ ControlValue = MmioRead32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR);
+ MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCICR, ControlValue & ~(ARM_GIC_ICCICR_ENABLE_SECURE | ARM_GIC_ICCICR_ENABLE_NS));
+}
+
+VOID
+EFIAPI
ArmGicEnableDistributor (
IN INTN GicDistributorBase
)
diff --git a/ArmPkg/Include/Library/ArmGicLib.h b/ArmPkg/Include/Library/ArmGicLib.h
index c115767..6da0728 100644
--- a/ArmPkg/Include/Library/ArmGicLib.h
+++ b/ArmPkg/Include/Library/ArmGicLib.h
@@ -98,6 +98,12 @@ ArmGicEnableInterruptInterface (
VOID
EFIAPI
+ArmGicDisableInterruptInterface (
+ IN INTN GicInterruptInterfaceBase
+ );
+
+VOID
+EFIAPI
ArmGicEnableDistributor (
IN INTN GicDistributorBase
);