[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] x86/vpmu: Add get/put_vpmu() and VPMU_ENABLED
>>> On 16.02.17 at 18:31, <boris.ostrovsky@xxxxxxxxxx> wrote: > On 02/16/2017 11:59 AM, Jan Beulich wrote: >> Also this new model basically limits the opportunity to change the >> mode to the case where no guest at all is running, iiuc. Previously >> this would have been possible with any number of guests running, >> as long as none of them actually used the vPMU. > > I don't think much changed. The only difference is that for PV guests we > bump vpmu_count at VCPU creation as opposed to during the hypercall. > > And HVM guests always incremented the count during vcpu_initialise(). True, so my earlier statement needs to be limited to PV guests. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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