projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| d5970055 MT |
1 | #ifndef VHOST_H |
| 2 | #define VHOST_H | |
| 3 | ||
| 4 | #include "hw/hw.h" | |
| 5 | #include "hw/virtio.h" | |
| 6 | ||
| 7 | /* Generic structures common for any vhost based device. */ | |
| 8 | struct vhost_virtqueue { | |
| 9 | int kick; | |
| 10 | int call; | |
| 11 | void *desc; | |
| 12 | void *avail; | |
| 13 | void *used; | |
| 14 | int num; | |
| 15 | unsigned long long used_phys; | |
| 16 | unsigned used_size; | |
| 17 | void *ring; | |
| 18 | unsigned long long ring_phys; | |
| 19 | unsigned ring_size; | |
| 20 | }; | |
| 21 | ||
| 22 | typedef unsigned long vhost_log_chunk_t; | |
| 23 | #define VHOST_LOG_PAGE 0x1000 | |
| 24 | #define VHOST_LOG_BITS (8 * sizeof(vhost_log_chunk_t)) | |
| 25 | #define VHOST_LOG_CHUNK (VHOST_LOG_PAGE * VHOST_LOG_BITS) | |
| 26 | ||
| 27 | struct vhost_memory; | |
| 28 | struct vhost_dev { | |
| 29 | CPUPhysMemoryClient client; | |
| 30 | int control; | |
| 31 | struct vhost_memory *mem; | |
| 32 | struct vhost_virtqueue *vqs; | |
| 33 | int nvqs; | |
| 34 | unsigned long long features; | |
| 35 | unsigned long long acked_features; | |
| 36 | unsigned long long backend_features; | |
| 37 | bool started; | |
| 38 | bool log_enabled; | |
| 39 | vhost_log_chunk_t *log; | |
| 40 | unsigned long long log_size; | |
| 41 | }; | |
| 42 | ||
| 43 | int vhost_dev_init(struct vhost_dev *hdev, int devfd); | |
| 44 | void vhost_dev_cleanup(struct vhost_dev *hdev); | |
| 45 | int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev); | |
| 46 | void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev); | |
| 47 | ||
| 48 | #endif |