Wu Zhou e83ae3e664 dm: vm_event: init vm_event ...

This patch adds vm_event sbuf and notification initialization.
We have 2 types of event source: DM and HV, and they are slightly
different:
 - Sbuf for DM event source is a memery page shared between threads.
   Event notifications are delivered by userspace eventfd.
 - While for hv event source,  sbuf is a memery page shared with HV. Its
   address(GPA) is shared to HV through hypercall. Its notifications
   are generated by HV upcall, then delivered by kernel/userspace eventfd.

A sbuf message path acts like a one way ‘tunnel’, so a data structure
‘vm_event_tunnel’ is created to organize those sbufs.

Tracked-On: #8547
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Reviewed-by: Jian Jun Chen <jian.jun.chen@intel.com>

2024-02-01 17:01:31 +08:00

..

acrn_common.h

DM: use soft link of acrn_common.h in HV

2019-03-26 21:23:16 +08:00

hsm_ioctl_defs.h

dm: vm_event: init vm_event

2024-02-01 17:01:31 +08:00