tree deec26fda8e992c40a71d76d1828fd297aeac374
parent f9b49088952ddb6de6e9c2e5822a5e15434abc3b
author Elena Afanasova <eafanasova@gmail.com> 1603138813 -0700
committer Stefan Hajnoczi <stefanha@redhat.com> 1604429713 +0000

softmmu/memory: fix memory_region_ioeventfd_equal()

Eventfd can be registered with a zero length when fast_mmio is true.
Handle this case properly when dispatching through QEMU.

Signed-off-by: Elena Afanasova <eafanasova@gmail.com>
Message-id: cf71a62eb04e61932ff8ffdd02e0b2aab4f495a0.camel@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>