From 867767a365ee74a3adcfaba27075eefb66b14bfd Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Fri, 27 Jun 2008 15:55:02 +0300 Subject: KVM: Introduce kvm_set_irq to inject interrupts in guests This function injects an interrupt into the guest given the kvm struct, the (guest) irq number and the interrupt level. Signed-off-by: Amit Shah Signed-off-by: Avi Kivity --- arch/x86/kvm/irq.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/x86/kvm/irq.c') diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index 76d736b5f66..0d9e55275af 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -100,3 +100,14 @@ void __kvm_migrate_timers(struct kvm_vcpu *vcpu) __kvm_migrate_apic_timer(vcpu); __kvm_migrate_pit_timer(vcpu); } + +/* This should be called with the kvm->lock mutex held */ +void kvm_set_irq(struct kvm *kvm, int irq, int level) +{ + /* Not possible to detect if the guest uses the PIC or the + * IOAPIC. So set the bit in both. The guest will ignore + * writes to the unused one. + */ + kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level); + kvm_pic_set_irq(pic_irqchip(kvm), irq, level); +} -- cgit v1.2.3