uint64_t *pagelist = req->prp_list_page;
int i, j, r;
int entries = 0;
+ Error *local_err = NULL, **errp = NULL;
assert(qiov->size);
assert(QEMU_IS_ALIGNED(qiov->size, s->page_size));
try_map:
r = qemu_vfio_dma_map(s->vfio,
qiov->iov[i].iov_base,
- len, true, &iova, NULL);
+ len, true, &iova, errp);
if (r == -ENOSPC) {
/*
* In addition to the -ENOMEM error, the VFIO_IOMMU_MAP_DMA
goto fail;
}
}
+ errp = &local_err;
+
goto try_map;
}
if (r) {
* because they are already mapped before calling this function; for
* temporary mappings, a later nvme_cmd_(un)map_qiov will reclaim by
* calling qemu_vfio_dma_reset_temporary when necessary. */
+ if (local_err) {
+ error_reportf_err(local_err, "Cannot map buffer for DMA: ");
+ }
return r;
}