Protect boot modules in region_allocator

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/x86_64/include/arch/memory/region_allocator.hpp b/arch/x86_64/include/arch/memory/region_allocator.hpp
index 1c5885e..c7a836f 100644
--- a/arch/x86_64/include/arch/memory/region_allocator.hpp
+++ b/arch/x86_64/include/arch/memory/region_allocator.hpp
@@ -42,6 +42,11 @@ namespace arch::memory
       //! These include available, unavailable, and reclaimable regions. In general, only frames that are located in
       //! non-reserved (as in available) regions should be allocated for page storage.
       multiboot2::memory_map memory_map;
+
+      //! The loader supplied Multiboot2 information structure.
+      //!
+      //! This is used to query boot module ranges so these frames can be excluded from early allocations.
+      multiboot2::information_view const * mbi;
     };
 
     using region = multiboot2::memory_map::region;
@@ -80,6 +85,7 @@ namespace arch::memory
     kapi::memory::frame m_kernel_end;        //!< The end of the kernel image in physical memory.
     kapi::memory::frame m_multiboot_start;   //!< The start of the Multiboot2 information in physical memory.
     kapi::memory::frame m_multiboot_end;     //!< The end of the Multiboot2 information in physical memory.
+    multiboot2::information_view const * m_multiboot_information;  //!< Source of Multiboot2 module ranges.
   };
 
 }  // namespace arch::memory