From 1a932468a23ba63cc0125145a582e418a3b8dda2 Mon Sep 17 00:00:00 2001
From: belliash <belliash@codingworkshop.eu.org>
Date: Thu, 16 Nov 2023 14:53:54 +0100
Subject: [PATCH] Add some DPC related stubs

---
 sdk/xtdk/kefuncs.h     |  8 +++++
 xtoskrnl/ke/dpc.c      | 71 ++++++++++++++++++++++++++++++++----------
 xtoskrnl/xtoskrnl.spec |  2 ++
 3 files changed, 64 insertions(+), 17 deletions(-)

diff --git a/sdk/xtdk/kefuncs.h b/sdk/xtdk/kefuncs.h
index 108d3f3..bca3a86 100644
--- a/sdk/xtdk/kefuncs.h
+++ b/sdk/xtdk/kefuncs.h
@@ -74,4 +74,12 @@ VOID
 KeSetTargetProcessorDpc(IN PKDPC Dpc,
                         IN CCHAR Number);
 
+XTAPI
+VOID
+KeSignalCallDpcDone(IN PVOID SystemArgument);
+
+XTAPI
+BOOLEAN
+KeSignalCallDpcSynchronize(IN PVOID SystemArgument);
+
 #endif /* __XTDK_KEFUNCS_H */
diff --git a/xtoskrnl/ke/dpc.c b/xtoskrnl/ke/dpc.c
index 6fb34df..3b7f9af 100644
--- a/xtoskrnl/ke/dpc.c
+++ b/xtoskrnl/ke/dpc.c
@@ -75,23 +75,6 @@ KeInitializeThreadedDpc(IN PKDPC Dpc,
     Dpc->DpcData = NULL;
 }
 
-/**
- * Retires the expired DPC objects found in the DPC list.
- *
- * @param Prcb
- *        Supplies apointer to the Prcessor Control Block (PRCB).
- *
- * @return This routine does not return any value.
- *
- * @since XT 1.0
- */
-XTFASTCALL
-VOID
-KepRetireDpcList(IN PKPROCESSOR_CONTROL_BLOCK Prcb)
-{
-    UNIMPLEMENTED;
-}
-
 /**
  * Sets the target processor number for DPC.
  *
@@ -112,3 +95,57 @@ KeSetTargetProcessorDpc(IN PKDPC Dpc,
 {
     Dpc->Number = MAXIMUM_PROCESSORS + Number;
 }
+
+/**
+ * Decrements the DPC call barier.
+ *
+ * @param SystemArgument
+ *        Supplies an address of the DPC call barrier.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since NT 5.2
+ */
+XTAPI
+VOID
+KeSignalCallDpcDone(IN PVOID SystemArgument)
+{
+    RtlAtomicDecrement32(SystemArgument);
+}
+
+/**
+ * Decrements the DPC call reverse barier.
+ *
+ * @param SystemArgument
+ *        Supplies an address of the DPC call barrier.
+ *
+ * @return This routine returns TRUE if just one processor is waiting on the barrier, FALSE if more.
+ *
+ * @since NT 5.2
+ */
+XTAPI
+BOOLEAN
+KeSignalCallDpcSynchronize(IN PVOID SystemArgument)
+{
+    UNIMPLEMENTED;
+
+    /* SMP not yet implemented, return TRUE */
+    return TRUE;
+}
+
+/**
+ * Retires the expired DPC objects found in the DPC list.
+ *
+ * @param Prcb
+ *        Supplies apointer to the Prcessor Control Block (PRCB).
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTFASTCALL
+VOID
+KepRetireDpcList(IN PKPROCESSOR_CONTROL_BLOCK Prcb)
+{
+    UNIMPLEMENTED;
+}
diff --git a/xtoskrnl/xtoskrnl.spec b/xtoskrnl/xtoskrnl.spec
index 699ff09..8be270f 100644
--- a/xtoskrnl/xtoskrnl.spec
+++ b/xtoskrnl/xtoskrnl.spec
@@ -21,6 +21,8 @@
 @ stdcall KeReadSemaphoreState(ptr)
 @ stdcall KeReleaseSemaphore(ptr long long long)
 @ stdcall KeSetTargetProcessorDpc(ptr long)
+@ stdcall KeSignalCallDpcDone(ptr)
+@ stdcall KeSignalCallDpcSynchronize(ptr)
 @ stdcall RtlCompareMemory(ptr ptr long)
 @ stdcall RtlCopyMemory(ptr ptr long)
 @ stdcall RtlFillMemory(ptr long long)