Re: [PATCH v2 0/2] KVM: arm64: nv: Expose shadow page tables in debugfs

From: Joey Gouly

Date: Wed Mar 18 2026 - 07:45:18 EST


On Tue, Mar 17, 2026 at 06:26:36PM +0000, Wei-Lin Chang wrote:
> Hi,
>
> This is v2 of exposing shadow page tables in debugfs, there are a few
> small improvements, please see below.
>
> Changes in v2:
> - move debugfs_nv_dentry also behind CONFIG_PTDUMP_STAGE2_DEBUGFS
> - use a macro to define the file names of shadow ptdumps, also
> explicitly spell out the string to get its maximum size
> - add Reviewed-by tag from Sebastian (thanks!)
> - Link to v1: https://lore.kernel.org/kvmarm/20260308231829.864983-1-weilin.chang@xxxxxxx/
>
> Wei-Lin Chang (2):
> KVM: arm64: ptdump: Make KVM ptdump code s2 mmu aware
> KVM: arm64: nv: Expose shadow page tables in debugfs

Reviewed-by: Joey Gouly <joey.gouly@xxxxxxx>

>
> arch/arm64/include/asm/kvm_host.h | 9 +++++
> arch/arm64/include/asm/kvm_mmu.h | 4 +++
> arch/arm64/kvm/nested.c | 6 +++-
> arch/arm64/kvm/ptdump.c | 60 ++++++++++++++++++++++---------
> 4 files changed, 62 insertions(+), 17 deletions(-)
>
> --
> 2.43.0
>