From: Oliver Upton <oliver.upton@linux.dev>
To: Marc Zyngier <maz@kernel.org>, t@linux.dev
Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Nina Schoetterl-Glausch <nsg@linux.ibm.com>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: Re: [PATCH 0/3] KVM/arm64 fixes for AArch32 handling
Date: Fri, 24 May 2024 12:13:34 -0700 [thread overview]
Message-ID: <ZlDm3m0g9xSeG9TO@linux.dev> (raw)
In-Reply-To: <20240524141956.1450304-1-maz@kernel.org>
On Fri, May 24, 2024 at 03:19:53PM +0100, Marc Zyngier wrote:
> The (very much unloved) AArch32 handling has recently been found
> lacking in a number of ways:
>
> - Nina spotted a brown paper-bag quality bug in the register narrowing
> code when writing one of the core registers (GPRs, PSTATE) from
> userspace
Yuck!
> - We never allowed System mode to be restored. Nobody ever complained,
> but this is wrong nonetheless
>
> - The handling of traps failing their condition check went from dodgy
> to outright broken when the handling of ESR_EL2 was upgraded from 32
> to 64 bit (patch already posted).
>
> All these are stable material, and I plan to merge them after -rc1
> is released.
Please do!
Acked-by: Oliver Upton <oliver.upton@linux.dev>
--
Thanks,
Oliver
next prev parent reply other threads:[~2024-05-24 19:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-24 14:19 [PATCH 0/3] KVM/arm64 fixes for AArch32 handling Marc Zyngier
2024-05-24 14:19 ` [PATCH 1/3] KVM: arm64: Fix AArch32 register narrowing on userspace write Marc Zyngier
2024-05-24 17:18 ` Nina Schoetterl-Glausch
2024-05-24 19:11 ` Oliver Upton
2024-05-24 14:19 ` [PATCH 2/3] KVM: arm64: Allow AArch32 PSTATE.M to be restored as System mode Marc Zyngier
2024-05-24 19:11 ` Oliver Upton
2024-05-24 14:19 ` [PATCH 3/3] KVM: arm64: AArch32: Fix spurious trapping of conditional instructions Marc Zyngier
2024-05-24 19:13 ` Oliver Upton [this message]
2024-05-27 16:48 ` [PATCH 0/3] KVM/arm64 fixes for AArch32 handling Marc Zyngier
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