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Re: [Xen-devel] [RFC PATCH 1/5] xen/hap: Increase hap size for more vcpus support

To: Lan Tianyu <tianyu.lan@xxxxxxxxx>
From: Wei Liu <wei.liu2@xxxxxxxxxx>
Date: Fri, 25 Aug 2017 10:14:32 +0100
Cc: kevin.tian@xxxxxxxxx, wei.liu2@xxxxxxxxxx, george.dunlap@xxxxxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, ian.jackson@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxx, jbeulich@xxxxxxxx, chao.gao@xxxxxxxxx
Delivery-date: Fri, 25 Aug 2017 09:14:47 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Thu, Aug 24, 2017 at 10:52:16PM -0400, Lan Tianyu wrote:
> This patch is to increase hap size to support more vcpus in single VM.
> 
> Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx>

Can we maybe derive the number of pages needed from the number of vcpus?

Bumping this value unconditionally is going to increase memory
consumption.

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Follow-Ups:
- Re: [Xen-devel] [RFC PATCH 1/5] xen/hap: Increase hap size for more vcpus support
  - From: Lan, Tianyu

References:
- [Xen-devel] [RFC PATCH 0/5] Extend resources to support more vcpus in single VM
  - From: Lan Tianyu
- [Xen-devel] [RFC PATCH 1/5] xen/hap: Increase hap size for more vcpus support
  - From: Lan Tianyu

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