[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Linux v3.12 + pv ticketlocks
On Wed, Sep 11, 2013 at 08:25:01PM +0200, Sander Eikelenboom wrote: > Hi Konrad, > > Just to confirm: > > - PV ticketlocks is on by default and doesn't neet a config option, to > disable it at boot time it's possible to use "xen_nopvspin" as a kernel > commandline parameter Yes. > - CONFIG_PARAVIRT_SPINLOCKS should be off, since that would enable the old > bytelock pv-spinlock implementation which could now probably be removed ? You still need CONFIG_PARAVIRT_SPINLOCKS=y to take advantage of it. The bytelock pvspinlock is gone. If you compile without CONFIG_PARAVIRT_SPINLOCKS then you will only use ticketlocks for all types of guests and baremtal. No 'PV' variant. The CONFIG_PARAVIRT_SPINLOCKS=y enables the PV ticketlock for all guests. > > Have a nice vacation ! > > -- > Sander > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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