On 19.08.2019 14:08, Eslam Elnikety wrote:
> --- a/xen/common/event_channel.c
> +++ b/xen/common/event_channel.c
> @@ -1170,6 +1170,7 @@ long do_event_channel_op(int cmd,
> XEN_GUEST_HANDLE_PARAM(void) arg)
>
> case EVTCHNOP_init_control: {
> struct evtchn_init_control
Support for FIFO event channel ABI was first introduced in Xen 4.4
(see 88910061ec6). Make this support tunable, since the choice of which
event channel ABI has implications for hibernation. Consider resuming a
pre Xen 4.4 hibernated Linux guest. During resume from hibernation, there
are two
