diff options
Diffstat (limited to 'Kernel')
| -rw-r--r-- | Kernel/VM/PhysicalRegion.cpp | 19 |
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); } |