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[Xen-devel] Re: [PATCH RFC V2 5/5] kvm guest : pv-ticketlocks support for linux guests running on KVM hypervisor
- To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
- From: Raghavendra K T <raghukt@xxxxxxxxxxxxxxxxxx>
- Date: Thu, 27 Oct 2011 01:25:04 +0530
- Cc: "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Xen <xen-devel@xxxxxxxxxxxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, Gleb Natapov <gleb@xxxxxxxxxx>, Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Avi Kivity <avi@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Srivatsa Vaddagiri <vatsa@xxxxxxxxxxxxxxxxxx>, Sedat Dilek <sedat.dilek@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Yinghai Lu <yinghai@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Suzuki Poulose <suzuki@xxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 27 Oct 2011 05:08:24 -0700
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
On 10/27/2011 01:16 AM, Jeremy Fitzhardinge wrote:
On 10/26/2011 12:23 PM, Raghavendra K T wrote:
On 10/26/2011 12:04 AM, Jeremy Fitzhardinge wrote:
On 10/23/2011 12:07 PM, Raghavendra K T wrote:
our current aim was to have before any printk happens.
So I 'll trim the comment to somethings like :
Setup pv_lock_ops to exploit KVM_FEATURE_WAIT_FOR_KICK if present.
This needs to be setup early in boot. ?
You can hook the smp_ops.smp_prepare_cpus call and initialize it there.
There's no need to add new hook code.
Ok.. Thanks for pointer. 'll check on that.
J
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