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Subject: Re: [for-4.19 0/2] backport "KVM: arm64: limit PMU version to PMUv3
 for ARMv8.1"
To: Greg KH <gregkh@linuxfoundation.org>
CC: <stable@vger.kernel.org>, <sashal@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <kvmarm@lists.linux.dev>,
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References: <20231128074633.646-1-yuzenghui@huawei.com>
 <2023112831-preachy-unshaved-790d@gregkh>
From: Zenghui Yu <yuzenghui@huawei.com>
Message-ID: <350d1f6f-953b-eac4-4e1b-9e59060c99bc@huawei.com>
Date: Tue, 28 Nov 2023 20:00:08 +0800
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On 2023/11/28 16:12, Greg KH wrote:
> 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 for the heads up! "for-5.4" patches sent now.

Zenghui