linux-kernel - Re: [PATCH 2/3] KVM: uapi: Remove KVM_DEV_TYPE_ARM_PV_TIME in kvm_device

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Date:   Mon, 17 Aug 2020 18:56:25 +0800
From:   zhukeqian <zhukeqian1@...wei.com>
To:     Steven Price <steven.price@....com>, Marc Zyngier <maz@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <kvmarm@...ts.cs.columbia.edu>, <kvm@...r.kernel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        <wanghaibin.wang@...wei.com>
Subject: Re: [PATCH 2/3] KVM: uapi: Remove KVM_DEV_TYPE_ARM_PV_TIME in
 kvm_device_type

Hi Steven,

On 2020/8/17 17:49, Steven Price wrote:
> On 17/08/2020 09:43, zhukeqian wrote:
>> Hi Marc,
>>
[...]
>>>
>>> It is pretty unfortunate that PV time has turned into such a train wreck,
>>> but that's what we have now, and it has to stay.
>> Well, I see. It is a sad thing indeed.
> 
> Sorry about that, this got refactored so many times I guess I lost track of what was actually needed and this hunk remained when it should have been removed.
> 
It's fine :-) , not a serious problem.
> I would hope that I'm the only one who has any userspace code which uses this, but I guess we should still be cautious since this has been in several releases now.
> 
OK. For insurance purposes, we ought to ignore this patch to avoid breaking any user-space program.
> Steve
> .
Thanks,
Keqian
>