On 09/26/13 10:59, 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. > > https://bugzilla.redhat.com/show_bug.cgi?id=1008989 > --- QEMU upstream has now pulled the patches adding this feature: http://git.qemu.org/?p=qemu.git;a=commit;h=f010bc643a2759e87e989c3e4e85f15ec71ae98f Peter
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