Re: [PATCHv3 5/6] qemu: Add support for paravirtual spinlocks in the guest

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On Mon, Nov 04, 2013 at 14:55:06 +0100, Peter Krempa wrote:
> The linux kernel recently added support for paravirtual spinlock
> handling to avoid performance regressions on overcomitted hosts. This
> feature needs to be turned in the hypervisor so that the guest OS is
> notified about the possible support.
> 
> This patch adds a new feature "paravirt-spinlock" to the XML and
> supporting code to enable the "kvm_pv_unhalt" pseudo CPU feature in
> qemu.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1008989

ACK

Jirka

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