Commit cd8a377e authored by Tony Krowiak's avatar Tony Krowiak Committed by Christian Borntraeger

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: default avatarTony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: default avatarHalil Pasic <pasic@linux.ibm.com>
Reviewed-by: default avatarPierre Morel <pmorel@linux.ibm.com>
Reviewed-by: default avatarCornelia Huck <cohuck@redhat.com>
Tested-by: default avatarMichael Mueller <mimu@linux.ibm.com>
Tested-by: default avatarFarhan Ali <alifm@linux.ibm.com>
Tested-by: default avatarPierre Morel <pmorel@linux.ibm.com>
Message-Id: <20180925231641.4954-15-akrowiak@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent 46a7263d
...@@ -917,7 +917,7 @@ static int vfio_ap_mdev_get_device_info(unsigned long arg) ...@@ -917,7 +917,7 @@ static int vfio_ap_mdev_get_device_info(unsigned long arg)
if (info.argsz < minsz) if (info.argsz < minsz)
return -EINVAL; return -EINVAL;
info.flags = VFIO_DEVICE_FLAGS_AP; info.flags = VFIO_DEVICE_FLAGS_AP | VFIO_DEVICE_FLAGS_RESET;
info.num_regions = 0; info.num_regions = 0;
info.num_irqs = 0; info.num_irqs = 0;
...@@ -933,6 +933,9 @@ static ssize_t vfio_ap_mdev_ioctl(struct mdev_device *mdev, ...@@ -933,6 +933,9 @@ static ssize_t vfio_ap_mdev_ioctl(struct mdev_device *mdev,
case VFIO_DEVICE_GET_INFO: case VFIO_DEVICE_GET_INFO:
ret = vfio_ap_mdev_get_device_info(arg); ret = vfio_ap_mdev_get_device_info(arg);
break; break;
case VFIO_DEVICE_RESET:
ret = vfio_ap_mdev_reset_queues(mdev);
break;
default: default:
ret = -EOPNOTSUPP; ret = -EOPNOTSUPP;
break; break;
......
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