kvm-irqchip: x86: add msi route notify fn

One more IEC notifier is added to let msi routes know about the IEC
changes. When interrupt invalidation happens, all registered msi routes
will be updated for all PCI devices.

Since both vfio and vhost are possible gsi route consumers, this patch
will go one step further to keep them safe in split irqchip mode and
when irqfd is enabled.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[move trace-events lines into target-i386/trace-events]
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 1 insertions, 9 deletions

diff --git a/kvm-all.c b/kvm-all.c
index 69ff658f4d..ca30a58a11 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1246,15 +1246,7 @@ int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev)
     MSIMessage msg = {0, 0};
 
     if (dev) {
-        if (msix_enabled(dev)) {
-            msg = msix_get_message(dev, vector);
-        } else if (msi_enabled(dev)) {
-            msg = msi_get_message(dev, vector);
-        } else {
-            /* Should never happen */
-            error_report("%s: unknown interrupt type", __func__);
-            abort();
-        }
+        msg = pci_get_msi_message(dev, vector);
     }
 
     if (kvm_gsi_direct_mapping()) {