linux-kernel - Re: [PATCH v2 05/12] KVM: pfncache: allow a cache to be activated with a fixed (userspace) HVA

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Message-ID: <3cf7adca-aa69-4ac8-ca92-f10b1bd2e163@xen.org>
Date:   Mon, 18 Sep 2023 13:11:53 +0100
From:   Paul Durrant <xadimgnik@...il.com>
To:     David Woodhouse <dwmw2@...radead.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Paul Durrant <pdurrant@...zon.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH v2 05/12] KVM: pfncache: allow a cache to be activated
 with a fixed (userspace) HVA

On 18/09/2023 12:34, David Woodhouse wrote:
> On Mon, 2023-09-18 at 11:21 +0000, Paul Durrant wrote:
>> From: Paul Durrant <pdurrant@...zon.com>
>>
>> Some cached pages may actually be overlays on guest memory that have a
>> fixed HVA within the VMM. It's pointless to invalidate such cached
>> mappings if the overlay is moved so allow a cache to be activated directly
>> with the HVA to cater for such cases. A subsequent patch will make use
>> of this facility.
>>
>> Signed-off-by: Paul Durrant <pdurrant@...zon.com>
> 
> Reviewed-by: David Woodhouse <dwmw@...zon.co.uk>
> 
> Btw, I think you have falsified some Reviewed-by: tags on the rest of
> the series. Remember, if they aren't literally cut and pasted, the
> magic gets lost. Just the same as Signed-off-by: tags. Never type them
> for someone else.

Indeed. They were all copied and pasted.

   Paul