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Date: Wed, 18 Mar 2026 11:42:00 +0000
From: Joey Gouly <joey.gouly@arm.com>
To: Wei-Lin Chang <weilin.chang@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
	linux-kernel@vger.kernel.org, Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oupton@kernel.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>
Subject: Re: [PATCH v2 0/2] KVM: arm64: nv: Expose shadow page tables in
 debugfs
Message-ID: <20260318114200.GA3905508@e124191.cambridge.arm.com>
References: <20260317182638.1592507-1-weilin.chang@arm.com>
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In-Reply-To: <20260317182638.1592507-1-weilin.chang@arm.com>

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@arm.com/
> 
> 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@arm.com>

> 
>  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
>