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authorFeng Wu <feng.wu@intel.com>2015-09-18 17:29:47 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2015-10-01 16:06:49 +0300
commit8feb4a04dc756002f78df0026e58118669de4851 (patch)
tree5805a8d7b71c693d71dacf1d417d1f600732cef9 /arch/x86/kvm/lapic.h
parentebbfc765369690cf8fc512615e6b83ec1702f8ac (diff)
downloadlinux-8feb4a04dc756002f78df0026e58118669de4851.tar.xz
KVM: Define a new interface kvm_intr_is_single_vcpu()
This patch defines a new interface kvm_intr_is_single_vcpu(), which can returns whether the interrupt is for single-CPU or not. It is used by VT-d PI, since now we only support single-CPU interrupts, For lowest-priority interrupts, if user configures it via /proc/irq or uses irqbalance to make it single-CPU, we can use PI to deliver the interrupts to it. Full functionality of lowest-priority support will be added later. Signed-off-by: Feng Wu <feng.wu@intel.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.h')
-rw-r--r--arch/x86/kvm/lapic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 7259d272416f..fde8e35d5850 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -168,4 +168,6 @@ bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
void wait_lapic_expire(struct kvm_vcpu *vcpu);
+bool kvm_intr_is_single_vcpu_fast(struct kvm *kvm, struct kvm_lapic_irq *irq,
+ struct kvm_vcpu **dest_vcpu);
#endif