add isa gap as unavailable

2026-01-11 17:53:37 +01:00
parent daa4110066
commit 064ed508c6
1 changed files with 7 additions and 0 deletions
--- a/kernel/memory/pageframealloc.cc
+++ b/kernel/memory/pageframealloc.cc
@@ -29,11 +29,18 @@ void PageFrameAllocator::init(){
        memory_map_entry = memory_map_entry->getNext();
    }

+    // kernel image
    for(uint64_t i = (uint64_t)&___KERNEL_START___; i < (uint64_t)&___KERNEL_END___; i += 4096){
        uint64_t pg = i/4096;
        bitmap[pg/8] &= ~(1 << pg%8);
    }

+    // ISA adresses
+    for(uint64_t i = (uint64_t)0x00F00000; i < (uint64_t)0x00FFFFFF; i += 4096){
+        uint64_t pg = i/4096;
+        bitmap[pg/8] &= ~(1 << pg%8);
+    }
+
    stats();
 }