Commit cd8a377e authored Sep 25, 2018 by Tony Krowiak Committed by Christian Borntraeger Sep 28, 2018

s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl



Implements the VFIO_DEVICE_RESET ioctl. This ioctl zeroizes
all of the AP queues assigned to the guest.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Tested-by: Michael Mueller <mimu@linux.ibm.com>
Tested-by: Farhan Ali <alifm@linux.ibm.com>
Tested-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20180925231641.4954-15-akrowiak@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

parent 46a7263d

drivers/s390/crypto/vfio_ap_ops.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -917,7 +917,7 @@ static int vfio_ap_mdev_get_device_info(unsigned long arg)
		if (info.argsz < minsz)
		return -EINVAL;

		info.flags = VFIO_DEVICE_FLAGS_AP;
		info.flags = VFIO_DEVICE_FLAGS_AP \| VFIO_DEVICE_FLAGS_RESET;
		info.num_regions = 0;
		info.num_irqs = 0;

		@@ -933,6 +933,9 @@ static ssize_t vfio_ap_mdev_ioctl(struct mdev_device *mdev,
		case VFIO_DEVICE_GET_INFO:
		ret = vfio_ap_mdev_get_device_info(arg);
		break;
		case VFIO_DEVICE_RESET:
		ret = vfio_ap_mdev_reset_queues(mdev);
		break;
		default:
		ret = -EOPNOTSUPP;
		break;