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add isa gap as unavailable

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This commit is contained in:
Eggert Jung
2026-01-11 17:53:37 +01:00
parent daa4110066
commit 064ed508c6
1 changed files with 7 additions and 0 deletions
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7
kernel/memory/pageframealloc.cc
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@@ -29,11 +29,18 @@ void PageFrameAllocator::init(){
memory_map_entry = memory_map_entry->getNext(); memory_map_entry = memory_map_entry->getNext();
} }
// kernel image
for(uint64_t i = (uint64_t)&___KERNEL_START___; i < (uint64_t)&___KERNEL_END___; i += 4096){ for(uint64_t i = (uint64_t)&___KERNEL_START___; i < (uint64_t)&___KERNEL_END___; i += 4096){
uint64_t pg = i/4096; uint64_t pg = i/4096;
bitmap[pg/8] &= ~(1 << pg%8); 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(); stats();
} }