From fbd033df0ab725e412d4f840427c06c58b61b365 Mon Sep 17 00:00:00 2001
From: Justin Miller <justinmiller100@gmail.com>
Date: Sat, 26 Mar 2022 22:16:25 -0700
Subject: [PATCH] [NTOS] fix timer lock data and hardcod

---
 ntoskrnl/ke/krnlinit.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/ntoskrnl/ke/krnlinit.c b/ntoskrnl/ke/krnlinit.c
index d74d805715d..cac3e1f8007 100644
--- a/ntoskrnl/ke/krnlinit.c
+++ b/ntoskrnl/ke/krnlinit.c
@@ -60,7 +60,7 @@ KSPIN_LOCK IopDatabaseLock;
 KSPIN_LOCK IopCompletionLock;
 KSPIN_LOCK NtfsStructLock;
 KSPIN_LOCK AfdWorkQueueSpinLock;
-KSPIN_LOCK KiTimerTableLock[16];
+KSPIN_LOCK KiTimerTableLock[LOCK_QUEUE_TIMER_TABLE_LOCKS];
 KSPIN_LOCK KiReverseStallIpiLock;
 
 /* FUNCTIONS *****************************************************************/
@@ -251,11 +251,14 @@ KiInitSpinLocks(IN PKPRCB Prcb,
     Prcb->LockQueue[LockQueueUnusedSpare16].Next = NULL;
     Prcb->LockQueue[LockQueueUnusedSpare16].Lock = NULL;
 
-    /* Loop timer locks */
+    /* Loop timer locks (shared amongst all CPUs) */
     for (i = 0; i < LOCK_QUEUE_TIMER_TABLE_LOCKS; i++)
     {
-        /* Initialize the lock and setup the Queued Spinlock */
-        KeInitializeSpinLock(&KiTimerTableLock[i]);
+        /* Setup the Queued Spinlock (done only once by the boot CPU) */
+        if (!Number)
+            KeInitializeSpinLock(&KiTimerTableLock[i]);
+
+        /* Initialize the lock */
         Prcb->LockQueue[LockQueueTimerTableLock + i].Next = NULL;
         Prcb->LockQueue[LockQueueTimerTableLock + i].Lock =
             &KiTimerTableLock[i];