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Kernel: Make sure super pages are in the first 16MiB of physical memory

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This was broken by recent changes.
This commit is contained in:
Gunnar Beutner 2021-07-19 09:29:07 +02:00 • committed by Andreas Kling
parent e01cc39eed
commit a364f5c7b7
Notes: sideshowbarker 2024-07-18 08:45:27 +09:00
3 changed files with 15 additions and 0 deletions
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3
Kernel/VM/MemoryManager.cpp
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@ -300,6 +300,9 @@ UNMAP_AFTER_INIT void MemoryManager::parse_memory_map()
m_user_physical_regions.append(PhysicalRegion::try_create(range.lower, range.upper).release_nonnull());
}
// Super pages are guaranteed to be in the first 16MB of physical memory
VERIFY(virtual_to_low_physical((FlatPtr)super_pages) + sizeof(super_pages) < 0x1000000);
// Append statically-allocated super physical physical_region.
m_super_physical_regions.append(PhysicalRegion::try_create(
PhysicalAddress(virtual_to_low_physical(FlatPtr(super_pages))),