diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-10-27 17:28:47 +0300 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2017-11-10 11:41:56 +0300 |
| commit | c971968071d3ec5e8605f9da9e867441e2edf000 (patch) | |
| tree | 1411899a2e98bc1420ee23bd03369b4377ff639a /virt | |
| parent | 6ce18e3a5f3308670b49093b1c350d2834428358 (diff) | |
| download | linux-c971968071d3ec5e8605f9da9e867441e2edf000.tar.xz | |
KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint
When a vPE exits, the pending_last flag is set when there are pending
VLPIs stored in the pending table. Similarily, this flag will be set
when a doorbell interrupt fires, as it indicates the same condition.
Let's update kvm_vgic_vcpu_pending_irq() to account for that
flag as well, making a vcpu runnable when set.
Acked-by: Christoffer Dall <cdall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c index a05a5700910b..d29e91215366 100644 --- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -781,6 +781,9 @@ int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu) if (!vcpu->kvm->arch.vgic.enabled) return false; + if (vcpu->arch.vgic_cpu.vgic_v3.its_vpe.pending_last) + return true; + spin_lock_irqsave(&vgic_cpu->ap_list_lock, flags); list_for_each_entry(irq, &vgic_cpu->ap_list_head, ap_list) { |