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Re: [Qemu-devel] [PATCH v7 kernel 3/5] virtio-balloon: implementation of


From: Matthew Wilcox
Subject: Re: [Qemu-devel] [PATCH v7 kernel 3/5] virtio-balloon: implementation of VIRTIO_BALLOON_F_CHUNK_TRANSFER
Date: Sat, 11 Mar 2017 06:09:47 -0800
User-agent: Mutt/1.7.1 (2016-10-04)

On Sat, Mar 11, 2017 at 07:59:31PM +0800, Wei Wang wrote:
> I'm thinking what if the guest needs to transfer these much physically
> continuous
> memory to host: 1GB+2MB+64KB+32KB+16KB+4KB.
> Is it going to use Six 64-bit chunks? Would it be simpler if we just
> use the 128-bit chunk format (we can drop the previous normal 64-bit
> format)?

Is that a likely thing for the guest to need to do though?  Freeing a
1GB page is much more liikely, IMO.



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