diff options
Diffstat (limited to 'include/hw/virtio/vhost.h')
| -rw-r--r-- | include/hw/virtio/vhost.h | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index d75faf4..38800a7 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -3,7 +3,7 @@ #include "hw/virtio/vhost-backend.h" #include "hw/virtio/virtio.h" -#include "exec/memory.h" +#include "system/memory.h" #define VHOST_F_DEVICE_IOTLB 63 #define VHOST_USER_F_PROTOCOL_FEATURES 30 @@ -171,6 +171,10 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque, */ void vhost_dev_cleanup(struct vhost_dev *hdev); +void vhost_dev_disable_notifiers_nvqs(struct vhost_dev *hdev, + VirtIODevice *vdev, + unsigned int nvqs); + /** * vhost_dev_enable_notifiers() - enable event notifiers * @hdev: common vhost_dev structure @@ -228,8 +232,10 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings); * Stop the vhost device. After the device is stopped the notifiers * can be disabled (@vhost_dev_disable_notifiers) and the device can * be torn down (@vhost_dev_cleanup). + * + * Return: 0 on success, != 0 on error when stopping dev. */ -void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings); +int vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings); /** * DOC: vhost device configuration handling @@ -329,13 +335,11 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write); int vhost_virtqueue_start(struct vhost_dev *dev, struct VirtIODevice *vdev, struct vhost_virtqueue *vq, unsigned idx); -void vhost_virtqueue_stop(struct vhost_dev *dev, struct VirtIODevice *vdev, - struct vhost_virtqueue *vq, unsigned idx); +int vhost_virtqueue_stop(struct vhost_dev *dev, struct VirtIODevice *vdev, + struct vhost_virtqueue *vq, unsigned idx); void vhost_dev_reset_inflight(struct vhost_inflight *inflight); void vhost_dev_free_inflight(struct vhost_inflight *inflight); -void vhost_dev_save_inflight(struct vhost_inflight *inflight, QEMUFile *f); -int vhost_dev_load_inflight(struct vhost_inflight *inflight, QEMUFile *f); int vhost_dev_prepare_inflight(struct vhost_dev *hdev, VirtIODevice *vdev); int vhost_dev_set_inflight(struct vhost_dev *dev, struct vhost_inflight *inflight); @@ -363,7 +367,14 @@ static inline int vhost_reset_device(struct vhost_dev *hdev) * Returns true if the device supports these commands, and false if it * does not. */ +#ifdef CONFIG_VHOST bool vhost_supports_device_state(struct vhost_dev *dev); +#else +static inline bool vhost_supports_device_state(struct vhost_dev *dev) +{ + return false; +} +#endif /** * vhost_set_device_state_fd(): Begin transfer of internal state from/to @@ -446,7 +457,15 @@ int vhost_check_device_state(struct vhost_dev *dev, Error **errp); * * Returns 0 on success, and -errno otherwise. */ +#ifdef CONFIG_VHOST int vhost_save_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp); +#else +static inline int vhost_save_backend_state(struct vhost_dev *dev, QEMUFile *f, + Error **errp) +{ + return -ENOSYS; +} +#endif /** * vhost_load_backend_state(): High-level function to load a vhost @@ -463,6 +482,14 @@ int vhost_save_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp); * * Returns 0 on success, and -errno otherwise. */ +#ifdef CONFIG_VHOST int vhost_load_backend_state(struct vhost_dev *dev, QEMUFile *f, Error **errp); +#else +static inline int vhost_load_backend_state(struct vhost_dev *dev, QEMUFile *f, + Error **errp) +{ + return -ENOSYS; +} +#endif #endif |