From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: Re: [PATCH] KVM: arm64: Mark freed S2 MMUs as invalid
Date: Fri, 5 Sep 2025 02:41:08 -0700 [thread overview]
Message-ID: <175706523465.1669883.14530688411686369270.b4-ty@linux.dev> (raw)
In-Reply-To: <20250905072859.211369-1-maz@kernel.org>
On Fri, 05 Sep 2025 08:28:59 +0100, Marc Zyngier wrote:
> When freeing an S2 MMU, we free the associated pgd, but omit to
> mark the structure as invalid. Subsequently, a call to
> kvm_nested_s2_unmap() would pick these invalid S2 MMUs and
> pass them down the teardown path.
>
> This ends up with a nasty warning as we try to unmap an unallocated
> set of page tables.
>
> [...]
Applied to fixes, thanks!
[1/1] KVM: arm64: Mark freed S2 MMUs as invalid
https://git.kernel.org/kvmarm/kvmarm/c/34b8f4adedd5
--
Best,
Oliver
prev parent reply other threads:[~2025-09-05 9:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-05 7:28 [PATCH] KVM: arm64: Mark freed S2 MMUs as invalid Marc Zyngier
2025-09-05 9:41 ` Oliver Upton [this message]
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