Re: [PATCH v9 5/5] KVM: arm64: Introduce the PTDUMP_STAGE2_DEBUGFS config
From: Vincent Donnefort <hidden>
Date: 2024-08-30 10:26:19
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kvmarm, lkml
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 <redacted>
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 <redacted>
quoted hunk ↗ jump to hunk
--- 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