From: Oliver Upton <oliver.upton@linux.dev>
To: Marc Zyngier <maz@kernel.org>
Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: Re: [PATCH] KVM: arm64: nv: Advertise the lack of AArch32 EL0 support
Date: Sat, 21 Dec 2024 13:59:43 -0800 [thread overview]
Message-ID: <Z2c6TzM2i3DjtCTY@linux.dev> (raw)
In-Reply-To: <20241221101137.1405271-1-maz@kernel.org>
On Sat, Dec 21, 2024 at 10:11:37AM +0000, Marc Zyngier wrote:
> Although we never supported 32bit anywhere in NV, we fail to
> advertise so for EL0, probably owing to the relative lack of
> hardware supporting both NV2 and 32bit EL0.
>
> Add some sanitising to ID_AA64PFR0_EL1.EL0, and reaffirm that
> "in 64bit-only we trust".
>
> Reported-by: Oliver Upton <oliver.upton@linux.dev>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
Thanks!
Acked-by: Oliver Upton <oliver.upton@linux.dev>
--
Thanks,
Oliver
prev parent reply other threads:[~2024-12-21 21:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-21 10:11 [PATCH] KVM: arm64: nv: Advertise the lack of AArch32 EL0 support Marc Zyngier
2024-12-21 21:59 ` Oliver Upton [this message]
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