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Date: Tue, 28 Nov 2023 08:12:10 +0000
From: Greg KH <gregkh@linuxfoundation.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: stable@vger.kernel.org, sashal@kernel.org,
	linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
	andrew.murray@arm.com, mark.rutland@arm.com, suzuki.poulose@arm.com,
	wanghaibin.wang@huawei.com, will@kernel.org
Subject: Re: [for-4.19 0/2] backport "KVM: arm64: limit PMU version to PMUv3
 for ARMv8.1"
Message-ID: <2023112831-preachy-unshaved-790d@gregkh>
References: <20231128074633.646-1-yuzenghui@huawei.com>
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In-Reply-To: <20231128074633.646-1-yuzenghui@huawei.com>

On Tue, Nov 28, 2023 at 03:46:31PM +0800, Zenghui Yu wrote:
> We need to backport patch #1 as well because it introduced a helper used
> by patch #2.
> 
> Andrew Murray (2):
>   arm64: cpufeature: Extract capped perfmon fields
>   KVM: arm64: limit PMU version to PMUv3 for ARMv8.1

We can not just take these in an old stable tree and not newer ones as
that would mean you could upgrade and have a regression.  Please provide
backports for all applicable stable trees and we will be glad to take
them.

thanks,

greg k-h