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| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2020-07-31 08:55:28 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-05 17:08:42 +0200 |
| commit | 265a0ad8731dc04fccb76cd1abf5a85a9359e62e (patch) | |
| tree | 1942073683b5a2b905b0d1e837fb83086a51a645 /drivers/vhost/vhost.h | |
| parent | vhost: Use flex_array_size() helper in copy_from_user() (diff) | |
| download | linux-265a0ad8731dc04fccb76cd1abf5a85a9359e62e.tar.xz linux-265a0ad8731dc04fccb76cd1abf5a85a9359e62e.zip | |
vhost: introduce vhost_vring_call
This commit introduces struct vhost_vring_call which replaced
raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
Besides eventfd_ctx, it contains a spin lock and an
irq_bypass_producer in its structure.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200731065533.4144-2-lingshan.zhu@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
| -rw-r--r-- | drivers/vhost/vhost.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index c8e96a095d3b..38eb1aa3b68d 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -13,6 +13,7 @@ #include <linux/virtio_ring.h> #include <linux/atomic.h> #include <linux/vhost_iotlb.h> +#include <linux/irqbypass.h> struct vhost_work; typedef void (*vhost_work_fn_t)(struct vhost_work *work); @@ -60,6 +61,12 @@ enum vhost_uaddr_type { VHOST_NUM_ADDRS = 3, }; +struct vhost_vring_call { + struct eventfd_ctx *ctx; + struct irq_bypass_producer producer; + spinlock_t ctx_lock; +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -72,7 +79,7 @@ struct vhost_virtqueue { vring_used_t __user *used; const struct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; - struct eventfd_ctx *call_ctx; + struct vhost_vring_call call_ctx; struct eventfd_ctx *error_ctx; struct eventfd_ctx *log_ctx; |