Re: [PATCH resend v5 6/6] KVM: nVMX: Enable nested posted interrupt processing

2015-03-02 Thread Yong Wang
On Fri, Feb 27, 2015 at 04:56:06PM +0800, Wincy Van wrote: > On Sun, Feb 15, 2015 at 2:27 PM, Yong Wang > wrote: > > > > Wincy, our QA found regressions with this patch that 64bit L2 linux guest > > fails to boot up when running nested kvm on kvm. > > > > En

Re: [PATCH resend v5 6/6] KVM: nVMX: Enable nested posted interrupt processing

2015-02-14 Thread Yong Wang
On Tue, Feb 03, 2015 at 11:58:17PM +0800, Wincy Van wrote: > If vcpu has a interrupt in vmx non-root mode, we will > kick that vcpu to inject interrupt timely. With posted > interrupt processing, the kick intr is not needed, and > interrupts are fully taken care of by hardware. > > In nested vmx,

Re: [v3 13/26] KVM: Define a new interface kvm_find_dest_vcpu() for VT-d PI

2014-12-22 Thread Yong Wang
On Mon, Dec 22, 2014 at 12:23:36PM +0100, Paolo Bonzini wrote: > > > On 22/12/2014 12:17, Wu, Feng wrote: > >> Yes, and those need not be accelerated. But what if you set > >> affinity to a single CPU? > > > > How do I set affinity to a single CPU if guest configure a lowest > > priority interru