From d2e21f9380761c61b66b91d98c2071adb160abef Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Wed, 6 May 2026 15:05:02 +0300
Subject: [PATCH] Kernel: Fix 64 bit page table range reservation from
 lower->higher half

---
 kernel/arch/x86_64/PageTable.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/arch/x86_64/PageTable.cpp b/kernel/arch/x86_64/PageTable.cpp
index 2fbfe4c0..094c703f 100644
--- a/kernel/arch/x86_64/PageTable.cpp
+++ b/kernel/arch/x86_64/PageTable.cpp
@@ -743,8 +743,7 @@ namespace Kernel
 
 	paddr_t PageTable::physical_address_of(vaddr_t addr) const
 	{
-		uint64_t page_data = get_page_data(addr);
-		return page_data & s_page_addr_mask;
+		return get_page_data(addr) & s_page_addr_mask;
 	}
 
 	bool PageTable::reserve_page(vaddr_t vaddr, bool only_free, bool invalidate)
@@ -875,7 +874,7 @@ namespace Kernel
 			{
 				if (!is_canonical(vaddr + page * PAGE_SIZE))
 				{
-					vaddr = canonicalize(uncanonicalize(vaddr) + page * PAGE_SIZE);
+					vaddr = canonicalize(uncanonicalize(vaddr + page * PAGE_SIZE));
 					valid = false;
 					break;
 				}