diff options
| author | Feng Wu | 2015-09-18 16:29:53 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2015-10-01 15:06:47 +0200 |
| commit | f70c20aaf141adb715a2d750c55154073b02a9c3 (patch) | |
| tree | 47bca098ae2da44022af8b04f58d44089cd7ef80 /virt/kvm | |
| parent | KVM: eventfd: add irq bypass consumer management (diff) | |
| download | kernel-qcow2-linux-f70c20aaf141adb715a2d750c55154073b02a9c3.tar.gz kernel-qcow2-linux-f70c20aaf141adb715a2d750c55154073b02a9c3.tar.xz kernel-qcow2-linux-f70c20aaf141adb715a2d750c55154073b02a9c3.zip | |
KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd'
This patch adds an arch specific hooks 'arch_update' in
'struct kvm_kernel_irqfd'. On Intel side, it is used to
update the IRTE when VT-d posted-interrupts is used.
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 'virt/kvm')
| -rw-r--r-- | virt/kvm/eventfd.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 7df356d8f1fd..b637965746bb 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -266,6 +266,13 @@ void __attribute__((weak)) kvm_arch_irq_bypass_start( struct irq_bypass_consumer *cons) { } + +int __attribute__((weak)) kvm_arch_update_irqfd_routing( + struct kvm *kvm, unsigned int host_irq, + uint32_t guest_irq, bool set) +{ + return 0; +} #endif static int @@ -586,9 +593,19 @@ void kvm_irq_routing_update(struct kvm *kvm) spin_lock_irq(&kvm->irqfds.lock); - list_for_each_entry(irqfd, &kvm->irqfds.items, list) + list_for_each_entry(irqfd, &kvm->irqfds.items, list) { irqfd_update(kvm, irqfd); +#ifdef CONFIG_HAVE_KVM_IRQ_BYPASS + if (irqfd->producer) { + int ret = kvm_arch_update_irqfd_routing( + irqfd->kvm, irqfd->producer->irq, + irqfd->gsi, 1); + WARN_ON(ret); + } +#endif + } + spin_unlock_irq(&kvm->irqfds.lock); } |