[PATCH v9 5/5] KVM: arm64: Introduce the PTDUMP_STAGE2_DEBUGFS config
From: Sebastian Ene <hidden>
Date: 2024-08-27 08:46:11
Also in:
kvmarm, lkml
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
When this config is enabled, it exposes the stage-2 pagetable layout through a debugfs file. Signed-off-by: Sebastian Ene <redacted> --- 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