Il 27/06/2013 20:28, Stefan Weil ha scritto:
> Am 25.06.2013 18:25, schrieb Cornelia Huck:
>> On hosts that support ioeventfd, make use of it for host-to-guest
>> notifications via diagnose 500.
>>
>> Signed-off-by: Cornelia Huck <cornelia.h...@de.ibm.com>
>> ---
>> hw/s390x/css.c | 2 +-
>> hw/s390x/css.h | 1 +
>> hw/s390x/virtio-ccw.c | 117
>> +++++++++++++++++++++++++++++++++++++++++++++++++
>> hw/s390x/virtio-ccw.h | 7 +++
>> target-s390x/cpu.h | 16 +++++++
>> target-s390x/kvm.c | 19 ++++++++
>> 6 files changed, 161 insertions(+), 1 deletion(-)
>
> This patch was recently committed to git master and breaks builds:
>
> It uses event_notifier_get_fd which is only available for POSIX hosts.
> W32/W64 uses event_notifier_get_handle.
>
> Output from broken build:
>
> LINK s390x-softmmu/qemu-system-s390xw.exe
> hw/s390x/virtio-ccw.o: In function `virtio_ccw_set_guest2host_notifier':
> hw/s390x/virtio-ccw.c:92: undefined reference to `event_notifier_get_fd'
> hw/s390x/virtio-ccw.c:82: undefined reference to `event_notifier_get_fd'
The solution is simply to pass the EventNotifier to
s390_assign_subch_ioeventfd (as we do for the MemoryListener
eventfd_{add,del} callbacks, for example).
Paolo
