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Commit 04c2322b authored by Amit Shah's avatar Amit Shah
Browse files

virtio-pci: S3 support 



There's no difference in supporting S3 and S4 for virtio devices: the
vqs have to be re-created as the device has to be assumed to be reset at
restore-time.  Since S4 already handles this situation, we can directly
use the same code and callbacks for S3 support.

Signed-off-by: default avatarAmit Shah <amit.shah@redhat.com>
parent 0517fdd1

drivers/virtio/virtio_pci.c

+3 −21
Original line number Diff line number Diff line
@@ -720,24 +720,6 @@ static void __devexit virtio_pci_remove(struct pci_dev *pci_dev) 
}



#ifdef CONFIG_PM

static int virtio_pci_suspend(struct device *dev)

{

	struct pci_dev *pci_dev = to_pci_dev(dev);



	pci_save_state(pci_dev);

	pci_set_power_state(pci_dev, PCI_D3hot);

	return 0;

}



static int virtio_pci_resume(struct device *dev)

{

	struct pci_dev *pci_dev = to_pci_dev(dev);



	pci_restore_state(pci_dev);

	pci_set_power_state(pci_dev, PCI_D0);

	return 0;

}



static int virtio_pci_freeze(struct device *dev)

{

	struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -786,12 +768,12 @@ static int virtio_pci_restore(struct device *dev) 
}



static const struct dev_pm_ops virtio_pci_pm_ops = {

	.suspend	= virtio_pci_suspend,

	.resume		= virtio_pci_resume,

	.suspend	= virtio_pci_freeze,

	.resume		= virtio_pci_restore,

	.freeze		= virtio_pci_freeze,

	.thaw		= virtio_pci_restore,

	.restore	= virtio_pci_restore,

	.poweroff	= virtio_pci_suspend,

	.poweroff	= virtio_pci_freeze,

};

#endif