> -----Original Message----- > From: Rafael J. Wysocki <[email protected]> > Sent: Wednesday, September 12, 2018 11:55 PM > To: vkuznets <[email protected]> > Cc: Linux PM <[email protected]>; Rafael J. Wysocki > <[email protected]>; KY Srinivasan <[email protected]>; Haiyang Zhang > <[email protected]>; Stephen Hemminger > <[email protected]>; Jiri Kosina <[email protected]>; Dmitry > Torokhov <[email protected]>; [email protected]; > Linux Kernel Mailing List <[email protected]> > Subject: Re: [PATCH] hyper-v: Fix wakeup from suspend-to-idle > > On Wed, Sep 12, 2018 at 6:11 PM Vitaly Kuznetsov <[email protected]> > 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 <[email protected]> > > Reviewed-by: Rafael J. Wysocki <[email protected]> Acked-by: K. Y. Srinivasan <[email protected]>
> > > --- > > drivers/hid/hid-hyperv.c | 2 +- > > drivers/input/serio/hyperv-keyboard.c | 2 +- > > 2 files changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c > > index b372854cf38d..704049e62d58 100644 > > --- a/drivers/hid/hid-hyperv.c > > +++ b/drivers/hid/hid-hyperv.c > > @@ -309,7 +309,7 @@ static void mousevsc_on_receive(struct hv_device > *device, > > hid_input_report(input_dev->hid_device, HID_INPUT_REPORT, > > input_dev->input_buf, len, 1); > > > > - pm_wakeup_event(&input_dev->device->device, 0); > > + pm_wakeup_hard_event(&input_dev->device->device); > > > > break; > > default: > > diff --git a/drivers/input/serio/hyperv-keyboard.c > b/drivers/input/serio/hyperv-keyboard.c > > index 47a0e81a2989..a8b9be3e28db 100644 > > --- a/drivers/input/serio/hyperv-keyboard.c > > +++ b/drivers/input/serio/hyperv-keyboard.c > > @@ -177,7 +177,7 @@ static void hv_kbd_on_receive(struct hv_device > *hv_dev, > > * state because the Enter-UP can trigger a wakeup at once. > > */ > > if (!(info & IS_BREAK)) > > - pm_wakeup_event(&hv_dev->device, 0); > > + pm_wakeup_hard_event(&hv_dev->device); > > > > break; > > > > -- > > 2.14.4 > >
