diff options
| author | Liu, Jinsong <jinsong.liu@intel.com> | 2013-09-25 16:38:29 +0000 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2013-09-25 16:38:29 +0000 |
| commit | 4bc78a877252d772b983810a7d2c0be00e9be70e (patch) | |
| tree | d9bf685751130431e965f27240f9096703489bfe /hw/acpi | |
| parent | f828a4c8faa118e0ebab3e353ac6840f3b2a0318 (diff) | |
qemu: Adjust qemu wakeup
Currently Xen hvm s3 has a bug coming from the difference between
qemu-traditioanl and qemu-xen. For qemu-traditional, the way to
resume from hvm s3 is via 'xl trigger' command. However, for
qemu-xen, the way to resume from hvm s3 inherited from standard
qemu, i.e. via QMP, and it doesn't work under Xen.
The root cause is, for qemu-xen, 'xl trigger' command didn't reset
devices, while QMP didn't unpause hvm domain though they did qemu
system reset.
We have two qemu patches and one xl patch to fix Xen hvm s3 bug.
This patch is the qemu patch 1. It adjusts qemu wakeup so that
Xen s3 resume logic (which will be implemented at qemu patch 2)
will be notified after qemu system reset.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/acpi/core.c b/hw/acpi/core.c index 7467b88e27..7138139d32 100644 --- a/hw/acpi/core.c +++ b/hw/acpi/core.c @@ -324,12 +324,13 @@ static void acpi_notify_wakeup(Notifier *notifier, void *data) (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_TIMER_STATUS); break; case QEMU_WAKEUP_REASON_OTHER: - default: /* ACPI_BITMASK_WAKE_STATUS should be set on resume. Pretend that resume was caused by power button */ ar->pm1.evt.sts |= (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS); break; + default: + break; } } |