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Kernel: Put x86_64 specific VERIFY in PageDirectory.cpp behind ifdef

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This makes it possible to run this code on aarch64.
This commit is contained in:
Timon Kruiper 2022-12-28 23:30:21 +01:00 • committed by Andrew Kaster
commit 0d2dffb95b
Notes: sideshowbarker 2024-07-17 09:49:33 +09:00
1 changed files with 2 additions and 0 deletions
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2
Kernel/Memory/PageDirectory.cpp
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@ -61,6 +61,7 @@ ErrorOr<NonnullLockRefPtr<PageDirectory>> PageDirectory::try_create_for_userspac
}
}
#if ARCH(X86_64)
// 2 ** MAXPHYADDR - 1
// Where MAXPHYADDR = physical_address_bit_width
u64 max_physical_address = (1ULL << Processor::current().physical_address_bit_width()) - 1;
@ -83,6 +84,7 @@ ErrorOr<NonnullLockRefPtr<PageDirectory>> PageDirectory::try_create_for_userspac
// we're checking for sign extension when putting it into a PDPTE. See issue #4584.
for (auto table_entry : table.raw)
VERIFY((table_entry & ~pdpte_bit_flags) <= max_physical_address);
#endif
MM.unquickmap_page();
}