Avi Kivity wrote: > Zhang, Xiantao wrote: >> Avi Kivity wrote: >> >>> Zhang, Xiantao wrote: >>> >>>> From 2c14c54eed790553fddbcb3970f0967a4aa79dca Mon Sep 17 00:00:00 >>>> 2001 From: Xiantao Zhang <xiantao.zhang@xxxxxxxxx> >>>> 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. > > But it also means the user will have these features enabled > needlessly. Right now when KVM is the only option under the > virtualization menu, > this may be okay, but if other features are added, this is not > acceptable. > > Really, if users want KVM, they should enable it in their kernel > configuration. But if users don't configure it @ building kernel, they can't exercise kvm unless re-configure and re-build the host kernel. Generally, we should allow users to build kvm in the form of modules, and insert to host kernels without other dependcies. BTW, we often meet such fails and have to do rebuild. :( Thanks Xiantao -- To unsubscribe from this list: send the line "unsubscribe kvm-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
