Re: [PATCH] KVM: arm64: Fix TRFCR_EL1/PMSCR_EL1 access in hVHE mode

From: Oliver Upton <oliver.upton@linux.dev>
To: Marc Zyngier <maz@kernel.org>,
	kvm@vger.kernel.org, kvmarm@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Cc: Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	James Clark <james.clark@arm.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>
Subject: Re: [PATCH] KVM: arm64: Fix TRFCR_EL1/PMSCR_EL1 access in hVHE mode
Date: Fri,  1 Mar 2024 19:03:09 +0000	[thread overview]
Message-ID: <170931978598.3080605.10344567074374622004.b4-ty@linux.dev> (raw)
In-Reply-To: <20240229145417.3606279-1-maz@kernel.org>

On Thu, 29 Feb 2024 14:54:17 +0000, Marc Zyngier wrote:
> When running in hVHE mode, EL1 accesses are performed with the EL12
> accessor, as we run with HCR_EL2.E2H=1.
> 
> Unfortunately, both PMSCR_EL1 and TRFCR_EL1 are used with the
> EL1 accessor, meaning that we actually affect the EL2 state. Duh.
> 
> Switch to using the {read,write}_sysreg_el1() helpers that will do
> the right thing in all circumstances.
> 
> [...]

Applied to kvmarm/next, thanks!

[1/1] KVM: arm64: Fix TRFCR_EL1/PMSCR_EL1 access in hVHE mode
      https://git.kernel.org/kvmarm/kvmarm/c/9a3bfb27ef65

--
Best,
Oliver