From 1479b42112a0d2bf2102ff06f3401d1e4805c24a Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Thu, 18 Apr 2024 13:33:52 +0300
Subject: [PATCH] Kernel: Don't even loop over processor when system has only
 BSP

---
 kernel/kernel/APIC.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/kernel/kernel/APIC.cpp b/kernel/kernel/APIC.cpp
index 03b089b7..80f76d4d 100644
--- a/kernel/kernel/APIC.cpp
+++ b/kernel/kernel/APIC.cpp
@@ -247,6 +247,13 @@ namespace Kernel
 		uint8_t bsp_id = Kernel::Processor::current_id();
 		dprintln("BSP lapic id: {}", bsp_id);
 
+		if (m_processors.size() == 1)
+		{
+			dprintln("Only one processor, skipping AP initialization");
+			*g_ap_startup_done = 1;
+			return;
+		}
+
 		for (auto& processor : m_processors)
 		{
 			if (processor.apic_id == bsp_id)