As suggested by Alex: Instead of failing if the kernel does not allow us
to speak to an ioport region, warn the user but, hide the region and
continue.

Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
 hw/device-assignment.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/hw/device-assignment.c b/hw/device-assignment.c
index 9ad5de5..077d81e 100644
--- a/hw/device-assignment.c
+++ b/hw/device-assignment.c
@@ -430,10 +430,11 @@ static int assigned_dev_register_regions(PCIRegion 
*io_regions,
                         ret);
                 abort();
             } else if (errno != EINVAL) {
-                fprintf(stderr,
-                        "Kernel doesn't support ioport resource access.\n");
+                fprintf(stderr, "Kernel doesn't support ioport resource "
+                                "access, hiding this region.\n");
                 close(pci_dev->v_addrs[i].region->resource_fd);
-                return -1;
+                cur_region->valid = 0;
+                continue;
             }
 
             pci_dev->v_addrs[i].u.r_baseport = cur_region->base_addr;
-- 
1.7.3.4

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