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kvm: Introduce kvm_irqchip_update_msi_route

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This service allows to update an MSI route without releasing/reacquiring
the associated VIRQ. Will be used by PCI device assignment, later on
likely also by virtio/vhost and VFIO.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka 2012-08-27 08:28:38 +02:00 • committed by Avi Kivity
parent b131c74a0e
commit cc57407e96
2 changed files with 43 additions and 0 deletions
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kvm.h
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@ -270,6 +270,7 @@ int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign,
int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg);
void kvm_irqchip_release_virq(KVMState *s, int virq);
int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq);