On Tue, Aug 27, 2024 at 08:45:48AM +0000, Sebastian Ene wrote:
> When this config is enabled, it exposes the stage-2 pagetable layout
> through a debugfs file.
>
> Signed-off-by: Sebastian Ene <sebastianene@google.com>
It doesn't feel like having a separated patch for Kconfig brings anything and
I would have squashed it with the previous change.
Otherwise:
Reviewed-by: Vincent Donnefort <vdonnefort@google.com>
> ---
> arch/arm64/kvm/Kconfig | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
> index 8304eb342be9..ead632ad01b4 100644
> --- a/arch/arm64/kvm/Kconfig
> +++ b/arch/arm64/kvm/Kconfig
> @@ -66,4 +66,21 @@ config PROTECTED_NVHE_STACKTRACE
>
> If unsure, or not using protected nVHE (pKVM), say N.
>
> +config PTDUMP_STAGE2_DEBUGFS
> + bool "Present the stage-2 pagetables to debugfs"
> + depends on KVM
> + depends on DEBUG_KERNEL
> + depends on DEBUG_FS
> + depends on GENERIC_PTDUMP
> + select PTDUMP_CORE
> + default n
> + help
> + Say Y here if you want to show the stage-2 kernel pagetables
> + layout in a debugfs file. This information is only useful for kernel developers
> + who are working in architecture specific areas of the kernel.
> + It is probably not a good idea to enable this feature in a production
> + kernel.
> +
> + If in doubt, say N.
> +
> endif # VIRTUALIZATION
> --
> 2.46.0.295.g3b9ea8a38a-goog
>