Re: [PATCH v2 2/5] KVM: arm64: Exclude host_debug_data from vcpu_arch

From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Marc Zyngier <maz@kernel.org>,
	kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	kvm@vger.kernel.org
Cc: James Morse <james.morse@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	James Clark <james.clark@arm.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Mark Brown <broonie@kernel.org>,
	Dongli Zhang <dongli.zhang@oracle.com>
Subject: Re: [PATCH v2 2/5] KVM: arm64: Exclude host_debug_data from vcpu_arch
Date: Tue, 26 Mar 2024 10:24:37 +0000	[thread overview]
Message-ID: <72fc0e61-175b-4f48-a980-e715d9265a08@arm.com> (raw)
In-Reply-To: <20240322170945.3292593-3-maz@kernel.org>

On 22/03/2024 17:09, Marc Zyngier wrote:
> Keeping host_debug_state on a per-vcpu basis is completely
> pointless. The lifetime of this data is only that of the inner
> run-loop, which means it is never accessed outside of the core
> EL2 code.
> 
> Move the structure into kvm_host_data, and save over 500 bytes
> per vcpu.
> 
> Signed-off-by: Marc Zyngier <maz@kernel.org>

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>