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From: Leonardo Bras <leo.bras@arm.com>
To: Wei-Lin Chang <weilin.chang@arm.com>
Cc: Leonardo Bras <leo.bras@arm.com>,
	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>,
	Fuad Tabba <fuad.tabba@linux.dev>,
	Joey Gouly <joey.gouly@arm.com>,
	Steffen Eiden <seiden@linux.ibm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Gavin Shan <gshan@redhat.com>
Subject: Re: [PATCH v2 2/2] KVM: arm64: Remove stale remark on canonical IPA alignment
Date: Fri, 30 Oct 2026 11:50:33 +0000	[thread overview]
Message-ID: <auSEiTmuLcPmG7Gs@LeoBrasDK> (raw)
In-Reply-To: <20261029175238.3214788-3-weilin.chang@arm.com>

On Thu, Oct 29, 2026 at 05:52:38PM +0000, Wei-Lin Chang wrote:
> Commit 3b8ce2b5132ae ("KVM: arm64: Use a variable for the canonical IPA
> in kvm_s2_fault_map()") created a variable to store the canonical IPA,
> instead of calculating it when needed. It moved the aligning just before
> mark_page_dirty_in_slot() to an earlier place but did not update the
> comment.
> 
> Remove the stale part of the comment.
> 
> Signed-off-by: Wei-Lin Chang <weilin.chang@arm.com>
> ---
>  arch/arm64/kvm/mmu.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
> index c7df646af79f..695c6229a216 100644
> --- a/arch/arm64/kvm/mmu.c
> +++ b/arch/arm64/kvm/mmu.c
> @@ -2232,11 +2232,7 @@ static int kvm_s2_fault_map(const struct kvm_s2_fault_desc *s2fd,
>  	kvm_fault_unlock(kvm);
>  	kfree(mapping);
>  
> -	/*
> -	 * Mark the page dirty only if the fault is handled successfully,
> -	 * making sure we adjust the canonical IPA if the mapping size has
> -	 * been updated (via a THP upgrade, for example).
> -	 */
> +	/* Mark the page dirty only if the fault is handled successfully. */
>  	if (writable && !ret)
>  		mark_page_dirty_in_slot(kvm, s2fd->memslot,
>  					gpa_to_gfn(canonical_ipa));
> -- 
> 2.43.0
> 

Reviewed-by: Leonardo Bras <leo.bras@arm.com>

      parent reply	other threads:[~2026-10-30 11:50 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-29 17:52 [PATCH v2 0/2] KVM: arm64: Dirty logging fixes/cleanups Wei-Lin Chang
2026-10-29 17:52 ` [PATCH v2 1/2] KVM: arm64: Fix dirty logging detection in ring-only mode Wei-Lin Chang
2026-10-30  5:11   ` Gavin Shan
2026-10-30 11:42   ` Leonardo Bras
2026-10-29 17:52 ` [PATCH v2 2/2] KVM: arm64: Remove stale remark on canonical IPA alignment Wei-Lin Chang
2026-10-29 18:39   ` Fuad Tabba
2026-10-30  5:12   ` Gavin Shan
2026-10-30 11:50   ` Leonardo Bras [this message]

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