RE: [PATCH]KVM: kvm/ia64: select ANON_INODES PREEMPT_NOTIFIERS, once

Zhang, Xiantao
2008-08-25T09:28:29Z

Avi Kivity wrote:
> Zhang, Xiantao wrote:
>> From 2c14c54eed790553fddbcb3970f0967a4aa79dca Mon Sep 17 00:00:00
>> 2001 From: Xiantao Zhang <xiantao.zhang@intel.com>
>> Date: Sat, 23 Aug 2008 10:21:06 +0800
>> Subject: [PATCH] KVM: kvm/ia64: select ANON_INODES
>> PREEMPT_NOTIFIERS, once virtualization configured.
>>
>> Once virtulization configured, make PREEMPT_NOTIFIERS, ANON_INODES
>> selected by default.
>>
>
> What is the motivation for this? Don't things work as is

You know, kvm depends on these two configrations. If user doesn't
configure KVM when building host kernel, then PREEMPT_NOTIFIERS and
ANON_INODES shouldn't be selected . In this case, once user wants to
exercise KVM later, he has to replace the host kernel again. To some
high-end servers, it maybe infeasible to replace kernel and get a
restart. So I want to get them selected once users doesn't disable
virtulization explictly.

Thanks
Xiantao