From b5f220a2ae2c8eaa42e1764ec6cafcc79171b38e Mon Sep 17 00:00:00 2001
From: Aiken Harris <harraiken91@gmail.com>
Date: Fri, 23 Jan 2026 20:52:45 +0100
Subject: [PATCH] Correctly advance virtual address after mapping non-free
 regions

---
 boot/xtldr/memory.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/boot/xtldr/memory.cc b/boot/xtldr/memory.cc
index 6591833..792330b 100644
--- a/boot/xtldr/memory.cc
+++ b/boot/xtldr/memory.cc
@@ -422,6 +422,9 @@ Memory::MapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
                 /* Add any non-free memory mapping */
                 Status = MapVirtualMemory(PageMap, VirtualAddress, Descriptor->PhysicalStart,
                                           Descriptor->NumberOfPages, MemoryType);
+
+                /* Update virtual address */
+                VirtualAddress = VirtualAddress + (Descriptor->NumberOfPages * MM_PAGE_SIZE);
             }
             else
             {