From c8780546823d66461198e7791493652fe46a8e74 Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gbeutner@serenityos.org>
Date: Sat, 17 Jul 2021 01:43:38 +0200
Subject: [PATCH] Kernel: Make VirtualAddress::page_base() work with 64-bit
 addresses

---
 Kernel/VirtualAddress.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kernel/VirtualAddress.h b/Kernel/VirtualAddress.h
index c2046adddd..3ab0b215a3 100644
--- a/Kernel/VirtualAddress.h
+++ b/Kernel/VirtualAddress.h
@@ -40,7 +40,7 @@ public:
     [[nodiscard]] u8* as_ptr() { return reinterpret_cast<u8*>(m_address); }
     [[nodiscard]] const u8* as_ptr() const { return reinterpret_cast<const u8*>(m_address); }
 
-    [[nodiscard]] VirtualAddress page_base() const { return VirtualAddress(m_address & 0xfffff000); }
+    [[nodiscard]] VirtualAddress page_base() const { return VirtualAddress(m_address & ~(FlatPtr)0xfffu); }
 
 private:
     FlatPtr m_address { 0 };