From 637e562080ffd8f50e445f29a4f61f93566b357f Mon Sep 17 00:00:00 2001
From: Luke Usher <luke.usher@outlook.com>
Date: Tue, 24 Mar 2020 14:05:53 +0000
Subject: [PATCH] kernel: Clear IRR register on software interrupt processing

Fixes a hang that can occur due to an infinite loop of interrupts under
certian conditions.
---
 src/core/kernel/exports/EmuKrnl.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/kernel/exports/EmuKrnl.cpp b/src/core/kernel/exports/EmuKrnl.cpp
index bb275a186..a0d473fe4 100644
--- a/src/core/kernel/exports/EmuKrnl.cpp
+++ b/src/core/kernel/exports/EmuKrnl.cpp
@@ -177,7 +177,9 @@ void CallSoftwareInterrupt(const xboxkrnl::KIRQL SoftwareIrql)
 			HalSystemInterrupts[SoftwareIrql - 4].Trigger(EmuInterruptList[SoftwareIrql - 4]);
 		}
 		break;
-	}
+	}
+
+	HalInterruptRequestRegister ^= (1 << SoftwareIrql);
 }
 
 const DWORD IrqlMasks[] = {