[PATCH v2 2/2] bus/pci: add IO port region check before region map
From: Miao Li <hidden>
Date: 2023-06-29 02:27:10
Subsystem:
the rest · Maintainer:
Linus Torvalds
This patch adds IO port region check to skip region map
when doing IO port map for legacy device in secondary process.
Fixes: 33604c31354a ("vfio: refactor PCI BAR mapping")
Cc: stable@dpdk.org
Signed-off-by: Miao Li <redacted>
---
drivers/bus/pci/linux/pci_vfio.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index e634de8322..dd4ca46120 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c@@ -1099,6 +1099,15 @@ pci_vfio_map_resource_secondary(struct rte_pci_device *dev) maps = vfio_res->maps; for (i = 0; i < vfio_res->nb_maps; i++) { + /* chk for io port region */ + ret = pci_vfio_is_ioport_bar(dev, vfio_dev_fd, i); + if (ret < 0) { + goto err_vfio_dev_fd; + } else if (ret) { + RTE_LOG(INFO, EAL, "Ignore mapping IO port bar(%d)\n", i); + continue; + } + if (maps[i].nr_areas > 0) { ret = pci_vfio_sparse_mmap_bar(vfio_dev_fd, vfio_res, i, MAP_FIXED); if (ret < 0) {
--
2.25.1