diff options
Diffstat (limited to 'arch/um/drivers/vhost_user.h')
| -rw-r--r-- | arch/um/drivers/vhost_user.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/um/drivers/vhost_user.h b/arch/um/drivers/vhost_user.h index 2a9829b0782b..8aee9919581e 100644 --- a/arch/um/drivers/vhost_user.h +++ b/arch/um/drivers/vhost_user.h @@ -9,7 +9,8 @@ /* Feature bits */ #define VHOST_USER_F_PROTOCOL_FEATURES 30 /* Protocol feature bits */ -#define VHOST_USER_PROTOCOL_F_CONFIG 9 +#define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5 +#define VHOST_USER_PROTOCOL_F_CONFIG 9 /* Vring state index masks */ #define VHOST_USER_VRING_INDEX_MASK 0xff #define VHOST_USER_VRING_POLL_MASK BIT(8) @@ -19,7 +20,8 @@ /* Supported transport features */ #define VHOST_USER_SUPPORTED_F BIT_ULL(VHOST_USER_F_PROTOCOL_FEATURES) /* Supported protocol features */ -#define VHOST_USER_SUPPORTED_PROTOCOL_F BIT_ULL(VHOST_USER_PROTOCOL_F_CONFIG) +#define VHOST_USER_SUPPORTED_PROTOCOL_F (BIT_ULL(VHOST_USER_PROTOCOL_F_SLAVE_REQ) | \ + BIT_ULL(VHOST_USER_PROTOCOL_F_CONFIG)) enum vhost_user_request { VHOST_USER_GET_FEATURES = 1, @@ -49,8 +51,18 @@ enum vhost_user_request { VHOST_USER_SET_CONFIG = 25, }; +enum vhost_user_slave_request { + VHOST_USER_SLAVE_IOTLB_MSG = 1, + VHOST_USER_SLAVE_CONFIG_CHANGE_MSG = 2, + VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG = 3, +}; + struct vhost_user_header { - u32 request; /* Use enum vhost_user_request */ + /* + * Use enum vhost_user_request for outgoing messages, + * uses enum vhost_user_slave_request for incoming ones. + */ + u32 request; u32 flags; u32 size; } __packed; |