[PATCH] arm64/vmcore: Add pgtable_l5_enabled information in vmcoreinfo

[Will Deacon]

On Mon, Aug 26, 2024 at 02:52:02PM +0800, Kuan-Ying Lee wrote:
> Since arm64 supports 5-level page tables, we need to add this
> information to vmcoreinfo to make debug tools know if 5-level
> page table is enabled or not.
> 
> Missing this information will break the debug tool like crash [1].
> 
> [1] https://github.com/crash-utility/crash
> 
> Signed-off-by: Kuan-Ying Lee <kuan-ying.lee at canonical.com>
> ---
>  Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 ++++++
>  arch/arm64/kernel/vmcore_info.c                | 3 +++
>  2 files changed, 9 insertions(+)

In which case, wouldn't you also want to know about pgtable_l4_enabled()?

Will