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Re: [Xen-devel] [PATCH RFC V10 15/18] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor
- To: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- From: Gleb Natapov <gleb@xxxxxxxxxx>
- Date: Tue, 16 Jul 2013 19:31:04 +0300
- Cc: jeremy@xxxxxxxx, x86@xxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, drjones@xxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, andi@xxxxxxxxxxxxxx, hpa@xxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>, agraf@xxxxxxx, mingo@xxxxxxxxxx, habanero@xxxxxxxxxxxxxxxxxx, ouyang@xxxxxxxxxxx, mtosatti@xxxxxxxxxx, avi.kivity@xxxxxxxxx, tglx@xxxxxxxxxxxxx, chegu_vinod@xxxxxx, gregkh@xxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, srivatsa.vaddagiri@xxxxxxxxx, attilio.rao@xxxxxxxxxx, pbonzini@xxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, stephan.diestelhorst@xxxxxxx
- Delivery-date: Tue, 16 Jul 2013 16:32:41 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Tue, Jul 16, 2013 at 05:48:52PM +0200, Peter Zijlstra wrote:
> On Tue, Jul 16, 2013 at 09:02:15AM +0300, Gleb Natapov wrote:
> > BTW can NMI handler take spinlocks?
>
> No -- that is, yes you can using trylock, but you still shouldn't.
>
Great news for this code. Thanks.
--
Gleb.
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