From: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Cc: freude@de.ibm.com, schwidefsky@de.ibm.com,
heiko.carstens@de.ibm.com, borntraeger@de.ibm.com,
cohuck@redhat.com, kwankhede@nvidia.com,
bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com,
alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com,
alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com,
jjherne@linux.vnet.ibm.com, thuth@redhat.com,
pasic@linux.vnet.ibm.com, berrange@redhat.com,
fiuczy@linux.vnet.ibm.com, buendgen@de.ibm.com,
akrowiak@linux.vnet.ibm.com, frankja@linux.ibm.com,
Tony Krowiak <akrowiak@linux.ibm.com>
Subject: [PATCH v10 12/26] s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl
Date: Wed, 12 Sep 2018 15:43:02 -0400 [thread overview]
Message-ID: <1536781396-13601-13-git-send-email-akrowiak@linux.vnet.ibm.com> (raw)
In-Reply-To: <1536781396-13601-1-git-send-email-akrowiak@linux.vnet.ibm.com>
From: Tony Krowiak <akrowiak@linux.ibm.com>
Introduces ioctl access to the VFIO AP Matrix device driver
by implementing the VFIO_DEVICE_GET_INFO ioctl. This ioctl
provides the VFIO AP Matrix device driver information to the
guest machine.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.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>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
drivers/s390/crypto/vfio_ap_ops.c | 38 +++++++++++++++++++++++++++++++++++++
include/uapi/linux/vfio.h | 1 +
2 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 8bc0cdd..f8b276a 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -865,6 +865,43 @@ static void vfio_ap_mdev_release(struct mdev_device *mdev)
module_put(THIS_MODULE);
}
+static int vfio_ap_mdev_get_device_info(unsigned long arg)
+{
+ unsigned long minsz;
+ struct vfio_device_info info;
+
+ minsz = offsetofend(struct vfio_device_info, num_irqs);
+
+ if (copy_from_user(&info, (void __user *)arg, minsz))
+ return -EFAULT;
+
+ if (info.argsz < minsz)
+ return -EINVAL;
+
+ info.flags = VFIO_DEVICE_FLAGS_AP;
+ info.num_regions = 0;
+ info.num_irqs = 0;
+
+ return copy_to_user((void __user *)arg, &info, minsz);
+}
+
+static ssize_t vfio_ap_mdev_ioctl(struct mdev_device *mdev,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ switch (cmd) {
+ case VFIO_DEVICE_GET_INFO:
+ ret = vfio_ap_mdev_get_device_info(arg);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ return ret;
+}
+
static const struct mdev_parent_ops vfio_ap_matrix_ops = {
.owner = THIS_MODULE,
.supported_type_groups = vfio_ap_mdev_type_groups,
@@ -873,6 +910,7 @@ static void vfio_ap_mdev_release(struct mdev_device *mdev)
.remove = vfio_ap_mdev_remove,
.open = vfio_ap_mdev_open,
.release = vfio_ap_mdev_release,
+ .ioctl = vfio_ap_mdev_ioctl,
};
int vfio_ap_mdev_register(void)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index bfbe2be..f378b98 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -200,6 +200,7 @@ struct vfio_device_info {
#define VFIO_DEVICE_FLAGS_PLATFORM (1 << 2) /* vfio-platform device */
#define VFIO_DEVICE_FLAGS_AMBA (1 << 3) /* vfio-amba device */
#define VFIO_DEVICE_FLAGS_CCW (1 << 4) /* vfio-ccw device */
+#define VFIO_DEVICE_FLAGS_AP (1 << 5) /* vfio-ap device */
__u32 num_regions; /* Max region index + 1 */
__u32 num_irqs; /* Max IRQ index + 1 */
};
--
1.7.1
next prev parent reply other threads:[~2018-09-12 19:44 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-12 19:42 [PATCH v10 00/26] guest dedicated crypto adapters Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 01/26] KVM: s390: vsie: simulate VCPU SIE entry/exit Tony Krowiak
2018-09-24 10:32 ` Christian Borntraeger
2018-09-24 16:53 ` Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 02/26] KVM: s390: introduce and use KVM_REQ_VSIE_RESTART Tony Krowiak
2018-09-24 10:49 ` Christian Borntraeger
2018-09-24 16:48 ` Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 03/26] KVM: s390: refactor crypto initialization Tony Krowiak
2018-09-21 23:18 ` Tony Krowiak
2018-09-24 8:35 ` David Hildenbrand
2018-09-24 10:34 ` Cornelia Huck
2018-09-12 19:42 ` [PATCH v10 04/26] s390: vfio-ap: base implementation of VFIO AP device driver Tony Krowiak
2018-09-20 15:31 ` Cornelia Huck
2018-09-20 15:53 ` Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 05/26] s390: vfio-ap: register matrix device with VFIO mdev framework Tony Krowiak
2018-09-20 15:50 ` Cornelia Huck
2018-09-20 20:35 ` Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 06/26] s390: vfio-ap: sysfs interfaces to configure adapters Tony Krowiak
2018-09-21 9:40 ` Cornelia Huck
2018-09-21 9:52 ` Harald Freudenberger
2018-09-21 14:07 ` Tony Krowiak
2018-09-12 19:42 ` [PATCH v10 07/26] s390: vfio-ap: sysfs interfaces to configure domains Tony Krowiak
2018-09-24 10:45 ` Cornelia Huck
2018-09-12 19:42 ` [PATCH v10 08/26] s390: vfio-ap: sysfs interfaces to configure control domains Tony Krowiak
2018-09-24 10:57 ` Cornelia Huck
2018-09-12 19:42 ` [PATCH v10 09/26] s390: vfio-ap: sysfs interface to view matrix mdev matrix Tony Krowiak
2018-09-24 10:59 ` Cornelia Huck
2018-09-12 19:43 ` [PATCH v10 10/26] KVM: s390: interfaces to clear CRYCB masks Tony Krowiak
2018-09-24 11:01 ` Cornelia Huck
2018-09-24 11:50 ` Halil Pasic
2018-09-24 12:01 ` Cornelia Huck
2018-09-24 15:33 ` Tony Krowiak
2018-09-24 14:49 ` Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 11/26] s390: vfio-ap: implement mediated device open callback Tony Krowiak
2018-09-18 17:00 ` Halil Pasic
2018-09-18 21:57 ` Tony Krowiak
2018-09-21 23:28 ` Tony Krowiak
2018-09-24 8:40 ` David Hildenbrand
2018-09-24 16:07 ` Tony Krowiak
2018-09-24 18:40 ` David Hildenbrand
2018-09-24 18:43 ` Tony Krowiak
2018-09-24 19:46 ` Tony Krowiak
2018-09-24 19:55 ` David Hildenbrand
2018-09-25 19:54 ` Tony Krowiak
2018-09-25 19:55 ` David Hildenbrand
2018-09-12 19:43 ` Tony Krowiak [this message]
2018-09-24 11:43 ` [PATCH v10 12/26] s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl Cornelia Huck
2018-09-24 16:29 ` Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 13/26] s390: vfio-ap: zeroize the AP queues Tony Krowiak
2018-09-24 11:36 ` Cornelia Huck
2018-09-24 12:16 ` Halil Pasic
2018-09-24 12:32 ` Cornelia Huck
2018-09-24 13:22 ` Harald Freudenberger
2018-09-24 16:42 ` Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 14/26] s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl Tony Krowiak
2018-09-24 11:43 ` Cornelia Huck
2018-09-12 19:43 ` [PATCH v10 15/26] KVM: s390: Clear Crypto Control Block when using vSIE Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 16/26] KVM: s390: vsie: Do the CRYCB validation first Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 17/26] KVM: s390: vsie: Make use of CRYCB FORMAT2 clear Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 18/26] KVM: s390: vsie: Allow CRYCB FORMAT-2 Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 19/26] KVM: s390: vsie: allow CRYCB FORMAT-1 Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 20/26] KVM: s390: vsie: allow CRYCB FORMAT-0 Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 21/26] KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-1 Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 22/26] KVM: s390: vsie: allow guest FORMAT-1 CRYCB on host FORMAT-2 Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 23/26] KVM: s390: vsie: allow guest FORMAT-0 " Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 24/26] KVM: s390: device attrs to enable/disable AP interpretation Tony Krowiak
2018-09-17 8:51 ` David Hildenbrand
2018-09-21 23:40 ` Tony Krowiak
2018-09-24 11:23 ` David Hildenbrand
2018-09-24 16:25 ` Tony Krowiak
2018-09-24 18:42 ` Tony Krowiak
2018-09-24 18:51 ` David Hildenbrand
2018-09-25 13:24 ` Tony Krowiak
2018-09-25 7:32 ` David Hildenbrand
2018-09-25 13:26 ` Tony Krowiak
2018-09-24 18:46 ` David Hildenbrand
2018-09-25 13:31 ` Tony Krowiak
2018-09-12 19:43 ` [PATCH v10 25/26] KVM: s390: CPU model support for AP virtualization Tony Krowiak
2018-09-21 23:31 ` Tony Krowiak
2018-09-24 8:33 ` David Hildenbrand
2018-09-12 19:43 ` [PATCH v10 26/26] s390: doc: detailed specifications " Tony Krowiak
2018-09-24 10:10 ` [PATCH v10 00/26] guest dedicated crypto adapters Christian Borntraeger
2018-09-24 11:53 ` Cornelia Huck
2018-09-24 16:46 ` Tony Krowiak
2018-09-24 16:50 ` Tony Krowiak
2018-09-24 11:49 ` Cornelia Huck
2018-09-24 16:45 ` Tony Krowiak
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