From 336daa2cc59d0646a708cbbd4b622d923e0a1638 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Wed, 6 Dec 2023 12:57:13 +0200
Subject: [PATCH] Kernel: Add helper for checking whether segment is from
 userspace

---
 kernel/include/kernel/GDT.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/include/kernel/GDT.h b/kernel/include/kernel/GDT.h
index 251ff0ab..5f5d3093 100644
--- a/kernel/include/kernel/GDT.h
+++ b/kernel/include/kernel/GDT.h
@@ -5,6 +5,11 @@
 namespace Kernel::GDT
 {
 
+	static constexpr inline bool is_user_segment(uint8_t segment)
+	{
+		return (segment & 3) == 3;
+	}
+
 	void initialize();
 	void set_tss_stack(uintptr_t);