X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fbus%2Fpci%2Flinux%2Fpci.c;h=740a2cdad4ecc3f0474912e35a59adbc9f839baa;hb=2d241515ebaf65d08407a569012f36c831f4bd1b;hp=1ac2bff779f54f06c6b16d54422a7b10b3f70a1e;hpb=8ac3591694e105d47968f5f29b8c19511f21e41c;p=dpdk.git

diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index 1ac2bff779..740a2cdad4 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -511,18 +511,19 @@ pci_device_iommu_support_va(const struct rte_pci_device *dev)
 		 "%s/" PCI_PRI_FMT "/iommu/intel-iommu/cap",
 		 rte_pci_get_sysfs_path(), addr->domain, addr->bus, addr->devid,
 		 addr->function);
-	if (access(filename, F_OK) == -1) {
-		/* We don't have an Intel IOMMU, assume VA supported*/
-		return true;
-	}
 
-	/* We have an intel IOMMU */
 	fp = fopen(filename, "r");
 	if (fp == NULL) {
-		RTE_LOG(ERR, EAL, "%s(): can't open %s\n", __func__, filename);
+		/* We don't have an Intel IOMMU, assume VA supported */
+		if (errno == ENOENT)
+			return true;
+
+		RTE_LOG(ERR, EAL, "%s(): can't open %s: %s\n",
+			__func__, filename, strerror(errno));
 		return false;
 	}
 
+	/* We have an Intel IOMMU */
 	if (fscanf(fp, "%" PRIx64, &vtd_cap_reg) != 1) {
 		RTE_LOG(ERR, EAL, "%s(): can't read %s\n", __func__, filename);
 		fclose(fp);
@@ -656,6 +657,12 @@ pci_ioport_map(struct rte_pci_device *dev, int bar __rte_unused,
 	int found = 0;
 	size_t linesz;
 
+	if (rte_eal_iopl_init() != 0) {
+		RTE_LOG(ERR, EAL, "%s(): insufficient ioport permissions for PCI device %s\n",
+			__func__, dev->name);
+		return -1;
+	}
+
 	snprintf(pci_id, sizeof(pci_id), PCI_PRI_FMT,
 		 dev->addr.domain, dev->addr.bus,
 		 dev->addr.devid, dev->addr.function);