On 15.07.24 21:21, Peter Xu wrote:
Introduce arch_check_zapped_pud() to sanity check shadow stack on PUD zaps. It has the same logic of the PMD helper. One thing to mention is, it might be a good idea to use page_table_check in the future for trapping wrong setups of shadow stack pgtable entries [1]. That is left for the future as a separate effort. [1] https://lore.kernel.org/all/59d518698f664e07c036a5098833d7b56b953305.camel@xxxxxxxxx Cc: "Edgecombe, Rick P" <rick.p.edgecombe@xxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Cc: x86@xxxxxxxxxx Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> ---
Acked-by: David Hildenbrand <david@xxxxxxxxxx> -- Cheers, David / dhildenb
