[PULL,068/115] KVM: Pass EventNotifier into kvm_irqchip_assign_irqfd

Commit Message

Paolo Bonzini June 11, 2020, 7:44 p.m. UTC

From: Peter Xu <[e-mail]>

So that kvm_irqchip_assign_irqfd() can have access to the
EventNotifiers, especially the resample event.  It is needed in follow
up patch to cache and kick resamplefds from QEMU.

Reviewed-by: Eric Auger <[e-mail]>
Reviewed-by: Alex Williamson <[e-mail]>
Signed-off-by: Peter Xu <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Paolo Bonzini <[e-mail]>
---
 accel/kvm/kvm-all.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

Patch

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d06cc04079..b048c10af9 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1662,9 +1662,13 @@  int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
     return kvm_update_routing_entry(s, &kroute);
 }
 
-static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int rfd, int virq,
+static int kvm_irqchip_assign_irqfd(KVMState *s, EventNotifier *event,
+                                    EventNotifier *resample, int virq,
                                     bool assign)
 {
+    int fd = event_notifier_get_fd(event);
+    int rfd = resample ? event_notifier_get_fd(resample) : -1;
+
     struct kvm_irqfd irqfd = {
         .fd = fd,
         .gsi = virq,
@@ -1769,7 +1773,9 @@  int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint)
     return -ENOSYS;
 }
 
-static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign)
+static int kvm_irqchip_assign_irqfd(KVMState *s, EventNotifier *event,
+                                    EventNotifier *resample, int virq,
+                                    bool assign)
 {
     abort();
 }
@@ -1783,15 +1789,13 @@  int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
                                        EventNotifier *rn, int virq)
 {
-    return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n),
-           rn ? event_notifier_get_fd(rn) : -1, virq, true);
+    return kvm_irqchip_assign_irqfd(s, n, rn, virq, true);
 }
 
 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
                                           int virq)
 {
-    return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n), -1, virq,
-           false);
+    return kvm_irqchip_assign_irqfd(s, n, NULL, virq, false);
 }
 
 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,