Re: [PATCH v3 04/25] arm64: disable trapping of POR_EL0 to EL2

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To: Joey Gouly <joey.gouly@xxxxxxx>
Subject: Re: [PATCH v3 04/25] arm64: disable trapping of POR_EL0 to EL2
From: Catalin Marinas <catalin.marinas@xxxxxxx>
Date: Thu, 7 Dec 2023 13:37:22 +0000
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, aneesh.kumar@xxxxxxxxxxxxx, broonie@xxxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, maz@xxxxxxxxxx, oliver.upton@xxxxxxxxx, shuah@xxxxxxxxxx, will@xxxxxxxxxx, kvmarm@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, James Morse <james.morse@xxxxxxx>, Suzuki K Poulose <suzuki.poulose@xxxxxxx>, Zenghui Yu <yuzenghui@xxxxxxxxxx>
In-reply-to: <20231124163510.1835740-5-joey.gouly@arm.com>
References: <20231124163510.1835740-1-joey.gouly@arm.com> <20231124163510.1835740-5-joey.gouly@arm.com>

On Fri, Nov 24, 2023 at 04:34:49PM +0000, Joey Gouly wrote:
> Allow EL0 or EL1 to access POR_EL0 without being trapped to EL2.
> 
> Signed-off-by: Joey Gouly <joey.gouly@xxxxxxx>
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Will Deacon <will@xxxxxxxxxx>

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>

References:
- [PATCH v3 00/25] Permission Overlay Extension
  - From: Joey Gouly
- [PATCH v3 04/25] arm64: disable trapping of POR_EL0 to EL2
  - From: Joey Gouly

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