mempool: fix creation with Xen dom0

Restore the use of 2M hugepages when using Xen Dom0 that was
dropped during mempool rework.

Fixes: c042ba20674a ("mempool: rework support of Xen dom0")
Reported-by: Huilong Xu <huilongx.xu@intel.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index d78d02b7b8c514cb631d3eee867501c7779ab382..6ec09063db49b2cd611f1284f7a5a79417c570cb 100644 (file)
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -524,7 +524,11 @@ rte_mempool_populate_default(struct rte_mempool *mp)
        if (mp->nb_mem_chunks != 0)
                return -EEXIST;
 
-       if (rte_eal_has_hugepages()) {
+       if (rte_xen_dom0_supported()) {
+               pg_sz = RTE_PGSIZE_2M;
+               pg_shift = rte_bsf32(pg_sz);
+               align = pg_sz;
+       } else if (rte_eal_has_hugepages()) {
                pg_shift = 0; /* not needed, zone is physically contiguous */
                pg_sz = 0;
                align = RTE_CACHE_LINE_SIZE;