> -----Original Message----- > From: Radim Krčmář [mailto:rkrcmar@xxxxxxxxxx] > Sent: Thursday, December 24, 2015 1:22 AM > To: Wu, Feng <feng.wu@xxxxxxxxx> > Cc: pbonzini@xxxxxxxxxx; kvm@xxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx > Subject: Re: [PATCH v2 2/2] KVM: x86: Add lowest-priority support for vt-d > posted-interrupts > > 2015-12-16 09:37+0800, Feng Wu: > > Use vector-hashing to deliver lowest-priority interrupts for > > VT-d posted-interrupts. > > > > Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx> > > --- > > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > > @@ -10702,8 +10702,16 @@ static int vmx_update_pi_irte(struct kvm > *kvm, unsigned int host_irq, > > */ > > > > kvm_set_msi_irq(e, &irq); > > - if (!kvm_intr_is_single_vcpu(kvm, &irq, &vcpu)) > > - continue; > > + > > + if (!kvm_intr_is_single_vcpu(kvm, &irq, &vcpu)) { > > + if (!kvm_vector_hashing_enabled() || > > + irq.delivery_mode != > APIC_DM_LOWEST) > > Hm, wouldn't it actually be easier to extend kvm_intr_is_single_vcpu() > with vector hashing? :) Yes, it is a good idea, I will try that! Thanks a lot! Thanks, Feng -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
