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Re: [Xen-devel] [PATCH v3 3/3] tools: introduce parameter max_wp_ram_ranges.
- To: "Zhang Yu" <yu.c.zhang@xxxxxxxxxxxxxxx>
- From: "Jan Beulich" <JBeulich@xxxxxxxx>
- Date: Tue, 02 Feb 2016 04:12:27 -0700
- Cc: kevin.tian@xxxxxxxxx, wei.liu2@xxxxxxxxxx, ian.campbell@xxxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxx, Paul.Durrant@xxxxxxxxxx, zhiyuan.lv@xxxxxxxxx, keir@xxxxxxx
- Delivery-date: Tue, 02 Feb 2016 11:12:41 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
>>> On 02.02.16 at 11:56, <yu.c.zhang@xxxxxxxxxxxxxxx> wrote:
> I understand your concern, and to be honest, I do not think
> this is an optimal solution. But I also have no better idea
> in mind. :(
> Another option may be: instead of opening this parameter to
> the tool stack, we use a XenGT flag, which set the rangeset
> limit to a default value. But like I said, this default value
> may not always work on future XenGT platforms.
Assuming that you think of something set e.g. by hypervisor
command line option: How would that work? I.e. how would
that limit the resource use for all VMs not using XenGT? Or if
you mean a flag settable in the domain config - how would you
avoid a malicious admin to set this flag for all the VMs created
in the controlled partition of the system?
Jan
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