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-rw-r--r--ArmPlatformPkg/PrePi/MainMPCore.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/ArmPlatformPkg/PrePi/MainMPCore.c b/ArmPlatformPkg/PrePi/MainMPCore.c
index 5868993d57..3db3ce6857 100644
--- a/ArmPlatformPkg/PrePi/MainMPCore.c
+++ b/ArmPlatformPkg/PrePi/MainMPCore.c
@@ -55,6 +55,7 @@ SecondaryMain (
UINT32 CoreId;
VOID (*SecondaryStart)(VOID);
UINTN SecondaryEntryAddr;
+ UINTN Interrupt;
ClusterId = GET_CLUSTER_ID(MpId);
CoreId = GET_CORE_ID(MpId);
@@ -87,7 +88,12 @@ SecondaryMain (
SecondaryEntryAddr = MmioRead32 (ArmCoreInfoTable[Index].MailboxGetAddress);
// Acknowledge the interrupt and send End of Interrupt signal.
- ArmGicAcknowledgeInterrupt (PcdGet32(PcdGicDistributorBase), PcdGet32(PcdGicInterruptInterfaceBase), NULL, NULL);
+ Interrupt = ArmGicAcknowledgeInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase));
+ // Check if it is a valid interrupt ID
+ if ((Interrupt & ARM_GIC_ICCIAR_ACKINTID) < ArmGicGetMaxNumInterrupts (PcdGet32 (PcdGicDistributorBase))) {
+ // Got a valid SGI number hence signal End of Interrupt
+ ArmGicEndOfInterrupt (PcdGet32 (PcdGicInterruptInterfaceBase), Interrupt);
+ }
} while (SecondaryEntryAddr == 0);
// Jump to secondary core entry point.