Signed-off-by: Michael S. Tsirkin<address@hidden>
---
kvm-all.c | 24 ++++++++++++++++++++++++
kvm.h | 3 +++
2 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index a312654..aa00119 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1113,3 +1113,27 @@ void kvm_remove_all_breakpoints(CPUState *current_env)
{
}
#endif /* !KVM_CAP_SET_GUEST_DEBUG */
+
+#ifdef KVM_IOEVENTFD
+int kvm_set_ioeventfd(uint16_t addr, uint16_t data, int fd, bool assigned)
+{
+ struct kvm_ioeventfd kick = {
+ .datamatch = data,
+ .addr = addr,
+ .len = 2,
+ .flags = KVM_IOEVENTFD_FLAG_DATAMATCH | KVM_IOEVENTFD_FLAG_PIO,
+ .fd = fd,
+ };
+ if (!assigned)
+ kick.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN;
+ int r = kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD,&kick);
+ if (r< 0)
+ return r;
+ return 0;
+}