Messages in this thread | | | Date | Wed, 23 Dec 2015 18:21:39 +0100 | From | Radim Krčmář <> | 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@intel.com> > --- > 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? :)
> + continue; > + > + vcpu = kvm_intr_vector_hashing_dest(kvm, &irq); > + if (!vcpu) > + continue; > + }
| |