arm64 page table / page size docs
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@ -181,6 +181,13 @@ large number of guard pages created by hardened\_malloc. As an example, in
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This is unnecessary if you set `CONFIG_GUARD_SLABS_INTERVAL` to a very large
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value in the build configuration.
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On arm64, make sure your kernel is configured to use 4k pages since we haven't
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yet added support for 16k and 64k pages. The kernel also has to be configured
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to use 4 level page tables for the full 48 bit address space instead of only
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having a 39 bit address space for the default hardened\_malloc configuration.
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It's possible to reduce the class region size substantially to make a 39 bit
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address space workable but the defaults won't work.
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## Configuration
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You can set some configuration options at compile-time via arguments to the
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