X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4452a7af2eac33dbad800bcc91f2399d62c18f53..ca66cea69e6e866fd781ae2260d9474bdd48f2ca:/iokit/Kernel/IOInterruptController.cpp

diff --git a/iokit/Kernel/IOInterruptController.cpp b/iokit/Kernel/IOInterruptController.cpp
index f65dbe3b6..b1ce6b51d 100644
--- a/iokit/Kernel/IOInterruptController.cpp
+++ b/iokit/Kernel/IOInterruptController.cpp
@@ -87,6 +87,15 @@ IOReturn IOInterruptController::registerInterrupt(IOService *nub, int source,
   // Check if the interrupt source can/should be shared.
   canBeShared = vectorCanBeShared(vectorNumber, vector);
   IODTGetInterruptOptions(nub, source, &options);
+#if defined(__i386__) || defined(__x86_64__)
+  int   interruptType;
+  if (OSDynamicCast(IOPlatformDevice, getProvider()) &&
+      (getInterruptType(nub, source, &interruptType) == kIOReturnSuccess) &&
+      (kIOInterruptTypeLevel & interruptType))
+  {
+    options |= kIODTInterruptShared;
+  }
+#endif
   shouldBeShared = canBeShared && (options & kIODTInterruptShared);
   wasAlreadyRegisterd = vector->interruptRegistered;