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KVM: arm/arm64: Report PMU overflow interrupts to userspace irqchip

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When not using an in-kernel VGIC, but instead emulating an interrupt
controller in userspace, we should report the PMU overflow status to
that userspace interrupt controller using the KVM_CAP_ARM_USER_IRQ
feature.

Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Christoffer Dall
2017-02-01 12:51:52 +01:00
committed by Christoffer Dall
parent d9e1397783
commit 3dbbdf7863
4 changed files with 51 additions and 11 deletions
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3
virt/kvm/arm/arch_timer.c
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@@ -193,9 +193,6 @@ void kvm_timer_update_run(struct kvm_vcpu *vcpu)
struct arch_timer_context *ptimer = vcpu_ptimer(vcpu);
struct kvm_sync_regs *regs = &vcpu->run->s.regs;
if (likely(irqchip_in_kernel(vcpu->kvm)))
return;
/* Populate the device bitmap with the timer states */
regs->device_irq_level &= ~(KVM_ARM_DEV_EL1_VTIMER |
KVM_ARM_DEV_EL1_PTIMER);