diff options
Diffstat (limited to 'contrib/libvhost-user/libvhost-user.h')
| -rw-r--r-- | contrib/libvhost-user/libvhost-user.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/contrib/libvhost-user/libvhost-user.h b/contrib/libvhost-user/libvhost-user.h index b27075ea3b..4aa55b4d2d 100644 --- a/contrib/libvhost-user/libvhost-user.h +++ b/contrib/libvhost-user/libvhost-user.h @@ -51,6 +51,8 @@ enum VhostUserProtocolFeature { VHOST_USER_PROTOCOL_F_CRYPTO_SESSION = 7, VHOST_USER_PROTOCOL_F_PAGEFAULT = 8, VHOST_USER_PROTOCOL_F_CONFIG = 9, + VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD = 10, + VHOST_USER_PROTOCOL_F_HOST_NOTIFIER = 11, VHOST_USER_PROTOCOL_F_MAX }; @@ -92,6 +94,14 @@ typedef enum VhostUserRequest { VHOST_USER_MAX } VhostUserRequest; +typedef enum VhostUserSlaveRequest { + VHOST_USER_SLAVE_NONE = 0, + VHOST_USER_SLAVE_IOTLB_MSG = 1, + VHOST_USER_SLAVE_CONFIG_CHANGE_MSG = 2, + VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG = 3, + VHOST_USER_SLAVE_MAX +} VhostUserSlaveRequest; + typedef struct VhostUserMemoryRegion { uint64_t guest_phys_addr; uint64_t memory_size; @@ -122,6 +132,12 @@ static VhostUserConfig c __attribute__ ((unused)); + sizeof(c.size) \ + sizeof(c.flags)) +typedef struct VhostUserVringArea { + uint64_t u64; + uint64_t size; + uint64_t offset; +} VhostUserVringArea; + #if defined(_WIN32) # define VU_PACKED __attribute__((gcc_struct, packed)) #else @@ -133,6 +149,7 @@ typedef struct VhostUserMsg { #define VHOST_USER_VERSION_MASK (0x3) #define VHOST_USER_REPLY_MASK (0x1 << 2) +#define VHOST_USER_NEED_REPLY_MASK (0x1 << 3) uint32_t flags; uint32_t size; /* the following payload size */ @@ -145,6 +162,7 @@ typedef struct VhostUserMsg { VhostUserMemory memory; VhostUserLog log; VhostUserConfig config; + VhostUserVringArea area; } payload; int fds[VHOST_MEMORY_MAX_NREGIONS]; @@ -368,6 +386,20 @@ VuVirtq *vu_get_queue(VuDev *dev, int qidx); void vu_set_queue_handler(VuDev *dev, VuVirtq *vq, vu_queue_handler_cb handler); +/** + * vu_set_queue_host_notifier: + * @dev: a VuDev context + * @vq: a VuVirtq queue + * @fd: a file descriptor + * @size: host page size + * @offset: notifier offset in @fd file + * + * Set queue's host notifier. This function may be called several + * times for the same queue. If called with -1 @fd, the notifier + * is removed. + */ +bool vu_set_queue_host_notifier(VuDev *dev, VuVirtq *vq, int fd, + int size, int offset); /** * vu_queue_set_notification: |