From: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
Implements the VFIO_DEVICE_RESET ioctl. This ioctl zeroizes
all of the AP queues assigned to the guest.
Signed-off-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
---
drivers/s390/crypto/vfio_ap_ops.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index e247491..4ff75c7 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1161,7 +1161,7 @@ static int vfio_ap_mdev_get_device_info(unsigned long arg)
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;
@@ -1177,6 +1177,9 @@ 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, true);
+ break;
default:
pr_err("%s: ioctl command %d is not a supported command",
VFIO_AP_MODULE_NAME, cmd);
--
1.7.1
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