linux-kernel - Re: Enhancement for PLE handler in KVM

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Message-ID: <20140307174139.GB30738@amt.cnet>
Date:	Fri, 7 Mar 2014 14:41:39 -0300
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	"Li, Bin (Bin)" <bin.bl.li@...atel-lucent.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"Jatania, Neel (Neel)" <Neel.Jatania@...atel-lucent.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Enhancement for PLE handler in KVM

On Fri, Mar 07, 2014 at 02:26:19PM +0000, Li, Bin (Bin) wrote:
> Can we have "per-VM PLE values"?
> 
> My understanding is that the ple values are kvm module setting which applying to all VMs in the system.
> And all vms must be stopped first, then unload kvm-intel, reload kvm-intel with new ple setting.
> 
> /sbin/modprobe -r kvm-intel
> /sbin/modprobe kvm-intel ple_window=16384
> 
> Regards
> Bin

Yes, but it can be made per-VM (its a VMCS field).

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