On Wed, 12 Sep 2018, Vitaly Kuznetsov wrote:

It makes little sense but still possible to put Hyper-V guests into
suspend-to-idle state. To wake them up two wakeup sources were registered
in the past: hyperv-keyboard and hid-hyperv. However, since
commit eed4d47efe95 ("ACPI / sleep: Ignore spurious SCI wakeups from
suspend-to-idle") pm_wakeup_event() from these devices is ignored. Switch
to pm_wakeup_hard_event() API as these devices are actually the only
possible way to wakeup Hyper-V guests.

Fixes: eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 drivers/hid/hid-hyperv.c              | 2 +-

	Acked-by: Jiri Kosina [off-list ref]

for the above. I guess this'd better go through ACPI tree?

Thanks,

-- 
Jiri Kosina
SUSE Labs