[libvirt] [PATCHv2 22/23] qemu: Add support for paravirtual spinlocks in the guest
Daniel P. Berrange
berrange at redhat.com
Tue Oct 15 13:55:43 UTC 2013
On Tue, Oct 15, 2013 at 02:30:51PM +0200, 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" pseudoCPU feature in qemu.
How about a slightly less verbose 'pvspinlock' for feature
name ?
ACK either way.
Daniel
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