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| author | Feng Wu <feng.wu@intel.com> | 2015-09-18 22:29:47 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-01 15:06:49 +0200 |
| commit | 8feb4a04dc756002f78df0026e58118669de4851 (patch) | |
| tree | 5805a8d7b71c693d71dacf1d417d1f600732cef9 /arch/x86/include/asm/kvm_host.h | |
| parent | ebbfc765369690cf8fc512615e6b83ec1702f8ac (diff) | |
| download | lwn-8feb4a04dc756002f78df0026e58118669de4851.tar.gz lwn-8feb4a04dc756002f78df0026e58118669de4851.zip | |
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/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index d064cb2e19e8..ba4e5673e604 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1241,4 +1241,7 @@ int x86_set_memory_region(struct kvm *kvm, bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu); bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu); +bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq, + struct kvm_vcpu **dest_vcpu); + #endif /* _ASM_X86_KVM_HOST_H */ |