crypto/qat: verify session IOVA

This patch adds the verification of the crypto session IOVA
that should be known (not zero) to proceed with the
session initialisation. In case of unknown IOVA
the error code -EINVAL is returned.

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>

diff --git a/drivers/crypto/qat/qat_sym_session.c b/drivers/crypto/qat/qat_sym_session.c
index 58bdbd3..11b459e 100644 (file)
--- a/drivers/crypto/qat/qat_sym_session.c
+++ b/drivers/crypto/qat/qat_sym_session.c
@@ -537,8 +537,16 @@ qat_sym_session_set_parameters(struct rte_cryptodev *dev,
        int ret;
        int qat_cmd_id;
 
+       /* Verify the session physical address is known */
+       rte_iova_t session_paddr = rte_mempool_virt2iova(session);
+       if (session_paddr == 0 || session_paddr == RTE_BAD_IOVA) {
+               QAT_LOG(ERR,
+                       "Session physical address unknown. Bad memory pool.");
+               return -EINVAL;
+       }
+
        /* Set context descriptor physical address */
-       session->cd_paddr = rte_mempool_virt2iova(session) +
+       session->cd_paddr = session_paddr +
                        offsetof(struct qat_sym_session, cd);
 
        session->min_qat_dev_gen = QAT_GEN1;