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-rw-r--r--Kernel/VM/PhysicalRegion.cpp19
1 files changed, 13 insertions, 6 deletions
diff --git a/Kernel/VM/PhysicalRegion.cpp b/Kernel/VM/PhysicalRegion.cpp
index 6b74058e4c..3560186fd8 100644
--- a/Kernel/VM/PhysicalRegion.cpp
+++ b/Kernel/VM/PhysicalRegion.cpp
@@ -42,17 +42,24 @@ void PhysicalRegion::initialize_zones()
size_t remaining_pages = m_pages;
auto base_address = m_lower;
- auto make_zones = [&](size_t zone_size) {
- while (remaining_pages >= zone_size) {
- m_zones.append(make<PhysicalZone>(base_address, zone_size));
- dmesgln(" * Zone {:016x}-{:016x} ({} bytes)", base_address.get(), base_address.get() + zone_size * PAGE_SIZE - 1, zone_size * PAGE_SIZE);
- base_address = base_address.offset(zone_size * PAGE_SIZE);
+ auto make_zones = [&](size_t pages_per_zone) {
+ size_t zone_count = 0;
+ auto first_address = base_address;
+ while (remaining_pages >= pages_per_zone) {
+ m_zones.append(make<PhysicalZone>(base_address, pages_per_zone));
+ base_address = base_address.offset(pages_per_zone * PAGE_SIZE);
m_usable_zones.append(m_zones.last());
- remaining_pages -= zone_size;
+ remaining_pages -= pages_per_zone;
+ ++zone_count;
}
+ if (zone_count)
+ dmesgln(" * {}x PhysicalZone ({} MiB) @ {:016x}-{:016x}", zone_count, pages_per_zone / 256, first_address.get(), base_address.get() - pages_per_zone * PAGE_SIZE - 1);
};
+ // First make 16 MiB zones (with 4096 pages each)
make_zones(4096);
+
+ // Then divide any remaining space into 1 MiB zones (with 256 pages each)
make_zones(256);
}