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Date: Thu, 26 Feb 2026 03:38:30 -0800
From: Oliver Upton <oupton@kernel.org>
To: Yeoreum Yun <yeoreum.yun@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
	kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-kselftest@vger.kernel.org, catalin.marinas@arm.com,
	will@kernel.org, maz@kernel.org, miko.lenczewski@arm.com,
	kevin.brodsky@arm.com, broonie@kernel.org, ardb@kernel.org,
	suzuki.poulose@arm.com, lpieralisi@kernel.org, joey.gouly@arm.com,
	yuzenghui@huawei.com
Subject: Re: [PATCH v14 7/8] KVM: arm64: use CASLT instruction for swapping
 guest descriptor
Message-ID: <aaAwtrrJ-qFrqktX@kernel.org>
References: <20260225182708.3225211-1-yeoreum.yun@arm.com>
 <20260225182708.3225211-8-yeoreum.yun@arm.com>
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In-Reply-To: <20260225182708.3225211-8-yeoreum.yun@arm.com>

On Wed, Feb 25, 2026 at 06:27:07PM +0000, Yeoreum Yun wrote:
> +	asm volatile(__LSUI_PREAMBLE
> +		     "1: caslt	%[old], %[new], %[addr]\n"

The other two flavors of this use relaxed ordering, why can't we do the
same with LSUI?

Thanks,
Oliver