linux-kernel - Re: [PATCH v2] kselftest/arm64: abi: fix SVCR detection

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Message-ID: <804c336a-30c7-4d4c-b8dd-24912de39808@sirena.org.uk>
Date: Wed, 11 Dec 2024 14:22:28 +0000
From: Mark Brown <broonie@...nel.org>
To: Weizhao Ouyang <o451686892@...il.com>
Cc: Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] kselftest/arm64: abi: fix SVCR detection

On Wed, Dec 11, 2024 at 07:16:39PM +0800, Weizhao Ouyang wrote:
> When using svcr_in to check ZA and Streaming Mode, we should make sure
> that the value in x2 is correct, otherwise it may trigger an Illegal
> instruction if FEAT_SVE and !FEAT_SME.

Reviewed-by: Mark Brown <broonie@...nel.org>

Thanks for spotting this.

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