From e452980e0ee04c66e04db461e53e63bbc0a09beb Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 22 Apr 2025 16:19:10 +0300
Subject: [PATCH] [HALX86/APIC] Change IRQL for x86 profile interrupt to
 HIGH_LEVEL

While PROFILE_LEVEL is defined as 27 on x86, this does not match the vector for the profiling interrupt, which is 0xFD (see https://community.osr.com/t/odd-ioapic-output/45216), implying IRQL 31.
Fixes boot with x86 APIC hal (CORE-20093)
---
 hal/halx86/apic/apicp.h   | 2 ++
 hal/halx86/apic/halinit.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/hal/halx86/apic/apicp.h b/hal/halx86/apic/apicp.h
index 3ba238abfc7..86809a2c98f 100644
--- a/hal/halx86/apic/apicp.h
+++ b/hal/halx86/apic/apicp.h
@@ -32,6 +32,7 @@
     #define IrqlToSoftVector(Irql) ((Irql << 4)|0xf)
     #define TprToIrql(Tpr) ((KIRQL)(Tpr >> 4))
     #define CLOCK2_LEVEL CLOCK_LEVEL
+    #define APIC_PROFILE_LEVEL PROFILE_LEVEL
 #else
     #define LOCAL_APIC_BASE  0xFFFE0000
     #define IOAPIC_BASE 0xFFFE1000
@@ -54,6 +55,7 @@
     #define IrqlToTpr(Irql) (HalpIRQLtoTPR[Irql])
     #define IrqlToSoftVector(Irql) IrqlToTpr(Irql)
     #define TprToIrql(Tpr)  (HalVectorToIRQL[Tpr >> 4])
+    #define APIC_PROFILE_LEVEL HIGH_LEVEL
 #endif
 
 #define APIC_MAX_IRQ 24
diff --git a/hal/halx86/apic/halinit.c b/hal/halx86/apic/halinit.c
index 8274fd54824..b313b595acc 100644
--- a/hal/halx86/apic/halinit.c
+++ b/hal/halx86/apic/halinit.c
@@ -63,7 +63,7 @@ HalpInitPhase0(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
     HalpEnableInterruptHandler(IDT_DEVICE,
                                0,
                                APIC_PROFILE_VECTOR,
-                               PROFILE_LEVEL,
+                               APIC_PROFILE_LEVEL,
                                HalpProfileInterrupt,
                                Latched);
 }