Re: [Xen-devel] Re: how to change the memory size of a VM

To:	Jia Rao <rickenrao@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] Re: how to change the memory size of a VM
From:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date:	Mon, 02 Nov 2009 21:37:59 +0000
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On 02/11/2009 20:54, "Jia Rao" <rickenrao@xxxxxxxxx> wrote:

> It seems that to change the memory size of a VM, you just need to save the new
> size in somewhere, xenstore?
> How would the new size take effect? the memory mapping of the VM must be
> modified somewhere.

The VM itself gives up memory back to Xen, after reading the updated memory
size from xenstore.

 -- Keir



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Re: [Xen-devel] Re: how to change the memory size of a VM