From 3799dbae65d504d6ecf69f642641b517a7be6c0e Mon Sep 17 00:00:00 2001
From: Aiken Harris <harraiken91@gmail.com>
Date: Sun, 1 Feb 2026 10:18:13 +0100
Subject: [PATCH] Fix PFN truncation on i686 with PAE enabled

---
 boot/xtldr/arch/i686/memory.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/boot/xtldr/arch/i686/memory.cc b/boot/xtldr/arch/i686/memory.cc
index a6c65da..877a8ac 100644
--- a/boot/xtldr/arch/i686/memory.cc
+++ b/boot/xtldr/arch/i686/memory.cc
@@ -317,7 +317,7 @@ Memory::MapPage(IN PXTBL_PAGE_MAPPING PageMap,
                 IN ULONGLONG PhysicalAddress,
                 IN ULONGLONG NumberOfPages)
 {
-    SIZE_T PageFrameNumber;
+    ULONGLONG PageFrameNumber;
     PVOID Pml1, Pml2, Pml3;
     SIZE_T Pml1Entry, Pml2Entry, Pml3Entry;
     PHARDWARE_LEGACY_PTE LegacyPmlTable;