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From: Jason Wang <jasowang@redhat.com>
Date: Thu, 11 Jan 2024 11:20:25 +0800
Message-ID: <CACGkMEvqg3cqbPDvYe3qAh2BQKNbKYim27or08WsxCAMHmYO6g@mail.gmail.com>
Subject: Re: [PATCH] driver/virtio: Add Memory Balloon Support for SEV/SEV-ES
To: Zheyun Shen <szy0127@sjtu.edu.cn>
Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, 
	mst <mst@redhat.com>, david <david@redhat.com>, xuanzhuo@linux.alibaba.com
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On Wed, Jan 10, 2024 at 2:23=E2=80=AFPM Zheyun Shen <szy0127@sjtu.edu.cn> w=
rote:
>
> For now, SEV pins guest's memory to avoid swapping or
> moving ciphertext, but leading to the inhibition of
> Memory Ballooning.
>
> In Memory Ballooning, only guest's free pages will be relocated
> in balloon inflation and deflation, so the difference of plaintext
> doesn't matter to guest.

This seems only true if the page is zeroed, is this true here?

Thanks