From: Oliver Upton <oliver.upton@linux.dev>
To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
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>,
Catalin Marinas <catalin.marinas@arm.com>,
stable@vger.kernel.org, Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
James Morse <james.morse@arm.com>
Subject: Re: [PATCH] KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden
Date: Tue, 3 Dec 2024 16:38:55 -0800 [thread overview]
Message-ID: <173327270646.1289915.18344519507054696527.b4-ty@linux.dev> (raw)
In-Reply-To: <20241203190236.505759-1-maz@kernel.org>
On Tue, 03 Dec 2024 19:02:36 +0000, Marc Zyngier wrote:
> Catalin reports that a hypervisor lying to a guest about the size
> of the ASID field may result in unexpected issues:
>
> - if the underlying HW does only supports 8 bit ASIDs, the ASID
> field in a TLBI VAE1* operation is only 8 bits, and the HW will
> ignore the other 8 bits
>
> [...]
Applied to fixes, thanks!
[1/1] KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden
https://git.kernel.org/kvmarm/kvmarm/c/03c7527e97f7
--
Best,
Oliver
prev parent reply other threads:[~2024-12-04 0:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-03 19:02 [PATCH] KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden Marc Zyngier
2024-12-03 21:22 ` Catalin Marinas
2024-12-04 0:38 ` Oliver Upton [this message]
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