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This commit is contained in:
Eggert Jung
2026-01-10 22:40:44 +01:00
parent abae4b4994
commit 876e717462
1 changed files with 18 additions and 1 deletions
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19
kernel/memory/pageframealloc.cc
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@@ -16,7 +16,6 @@ void PageFrameAllocator::init(){
void* start = memory_map_entry->getStartAddress();
void* end = memory_map_entry->getEndAddress();
bool available = memory_map_entry->isAvailable();
dout << "Memory: " << hex << start << " to " << end << " is available: " << available << "." << endl;
//TODO priotity for conflicting regions
for(uint64_t i = (uint64_t)start; i < (uint64_t)end; i += 4096){
@@ -35,9 +34,27 @@ void PageFrameAllocator::init(){
bitmap[pg/8] &= ~(1 << pg%8);
}
stats();
}
void PageFrameAllocator::stats(){
Multiboot::Memory* memory_map_entry = Multiboot::getMemoryMap();
while(memory_map_entry != 0){
void* start = memory_map_entry->getStartAddress();
void* end = memory_map_entry->getEndAddress();
bool available = memory_map_entry->isAvailable();
dout << "Memory: " << hex << start << " to " << end << " is available: " << available << "." << endl;
memory_map_entry = memory_map_entry->getNext();
}
uint64_t pages_available = 0;
for(uint64_t i=0; i<sizeof(bitmap)*8;i++)
{
if(bitmap[i/8] & (1<<i%8))
pages_available++;
}
dout << "pages available: " << dec << pages_available << endl;
}
PageFrame* PageFrameAllocator::alloc(bool kernel){