netdev - [PATCH net-next v4 02/12] virtio: Add config

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251013152742.619423-3-danielj@nvidia.com>
Date: Mon, 13 Oct 2025 10:27:32 -0500
From: Daniel Jurgens <danielj@...dia.com>
To: <netdev@...r.kernel.org>, <mst@...hat.com>, <jasowang@...hat.com>,
	<alex.williamson@...hat.com>, <pabeni@...hat.com>
CC: <virtualization@...ts.linux.dev>, <parav@...dia.com>,
	<shshitrit@...dia.com>, <yohadt@...dia.com>, <xuanzhuo@...ux.alibaba.com>,
	<eperezma@...hat.com>, <shameerali.kolothum.thodi@...wei.com>,
	<jgg@...pe.ca>, <kevin.tian@...el.com>, <kuba@...nel.org>,
	<andrew+netdev@...n.ch>, <edumazet@...gle.com>, Daniel Jurgens
	<danielj@...dia.com>
Subject: [PATCH net-next v4 02/12] virtio: Add config_op for admin commands

This will allow device drivers to issue administration commands.

Signed-off-by: Daniel Jurgens <danielj@...dia.com>
Reviewed-by: Parav Pandit <parav@...dia.com>

---
v4: New patch for v4
---
 drivers/virtio/virtio_pci_modern.c | 2 ++
 include/linux/virtio_config.h      | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 810f9f636b5e..6d557f9b0187 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -1237,6 +1237,7 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
 	.get_shm_region  = vp_get_shm_region,
 	.disable_vq_and_reset = vp_modern_disable_vq_and_reset,
 	.enable_vq_after_reset = vp_modern_enable_vq_after_reset,
+	.admin_cmd_exec = vp_modern_admin_cmd_exec,
 };
 
 static const struct virtio_config_ops virtio_pci_config_ops = {
@@ -1257,6 +1258,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = {
 	.get_shm_region  = vp_get_shm_region,
 	.disable_vq_and_reset = vp_modern_disable_vq_and_reset,
 	.enable_vq_after_reset = vp_modern_enable_vq_after_reset,
+	.admin_cmd_exec = vp_modern_admin_cmd_exec,
 };
 
 /* the PCI probing function */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 16001e9f9b39..19606609254e 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -108,6 +108,10 @@ struct virtqueue_info {
  *	Returns 0 on success or error status
  *	If disable_vq_and_reset is set, then enable_vq_after_reset must also be
  *	set.
+ * @admin_cmd_exec: Execute an admin VQ command.
+ *	vdev: the virtio_device
+ *	cmd: the command to execute
+ *	Returns 0 on success or error status
  */
 struct virtio_config_ops {
 	void (*get)(struct virtio_device *vdev, unsigned offset,
@@ -137,6 +141,8 @@ struct virtio_config_ops {
 			       struct virtio_shm_region *region, u8 id);
 	int (*disable_vq_and_reset)(struct virtqueue *vq);
 	int (*enable_vq_after_reset)(struct virtqueue *vq);
+	int (*admin_cmd_exec)(struct virtio_device *vdev,
+			      struct virtio_admin_cmd *cmd);
 };
 
 /**
-- 
2.50.1