diff options
Diffstat (limited to 'hw/9pfs')
| -rw-r--r-- | hw/9pfs/9p.c | 6 | ||||
| -rw-r--r-- | hw/9pfs/9p.h | 6 | ||||
| -rw-r--r-- | hw/9pfs/virtio-9p-device.c | 28 |
3 files changed, 27 insertions, 13 deletions
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index f9acd63..97c2926 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -1652,7 +1652,11 @@ static void v9fs_init_qiov_from_pdu(QEMUIOVector *qiov, V9fsPDU *pdu, struct iovec *iov; unsigned int niov; - pdu->s->transport->init_iov_from_pdu(pdu, &iov, &niov, is_write); + if (is_write) { + pdu->s->transport->init_out_iov_from_pdu(pdu, &iov, &niov); + } else { + pdu->s->transport->init_in_iov_from_pdu(pdu, &iov, &niov, size); + } qemu_iovec_init_external(&elem, iov, niov); qemu_iovec_init(qiov, niov); diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h index c8c9aa8..4c4feaf 100644 --- a/hw/9pfs/9p.h +++ b/hw/9pfs/9p.h @@ -349,8 +349,10 @@ struct V9fsTransport { va_list ap); ssize_t (*pdu_vunmarshal)(V9fsPDU *pdu, size_t offset, const char *fmt, va_list ap); - void (*init_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, - unsigned int *pniov, bool is_write); + void (*init_in_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov, size_t size); + void (*init_out_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov); void (*push_and_notify)(V9fsPDU *pdu); }; diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c index 273425b..27a4a32 100644 --- a/hw/9pfs/virtio-9p-device.c +++ b/hw/9pfs/virtio-9p-device.c @@ -171,26 +171,34 @@ static ssize_t virtio_pdu_vunmarshal(V9fsPDU *pdu, size_t offset, return v9fs_iov_vunmarshal(elem->out_sg, elem->out_num, offset, 1, fmt, ap); } -static void virtio_init_iov_from_pdu(V9fsPDU *pdu, struct iovec **piov, - unsigned int *pniov, bool is_write) +/* The size parameter is used by other transports. Do not drop it. */ +static void virtio_init_in_iov_from_pdu(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov, size_t size) { V9fsState *s = pdu->s; V9fsVirtioState *v = container_of(s, V9fsVirtioState, state); VirtQueueElement *elem = v->elems[pdu->idx]; - if (is_write) { - *piov = elem->out_sg; - *pniov = elem->out_num; - } else { - *piov = elem->in_sg; - *pniov = elem->in_num; - } + *piov = elem->in_sg; + *pniov = elem->in_num; +} + +static void virtio_init_out_iov_from_pdu(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov) +{ + V9fsState *s = pdu->s; + V9fsVirtioState *v = container_of(s, V9fsVirtioState, state); + VirtQueueElement *elem = v->elems[pdu->idx]; + + *piov = elem->out_sg; + *pniov = elem->out_num; } static const struct V9fsTransport virtio_9p_transport = { .pdu_vmarshal = virtio_pdu_vmarshal, .pdu_vunmarshal = virtio_pdu_vunmarshal, - .init_iov_from_pdu = virtio_init_iov_from_pdu, + .init_in_iov_from_pdu = virtio_init_in_iov_from_pdu, + .init_out_iov_from_pdu = virtio_init_out_iov_from_pdu, .push_and_notify = virtio_9p_push_and_notify, }; |