Currently s390x does not support ISM passthrough without zPCI
interpretation. This is already fenced, but the current message will
not provide adequate information to explain to the end-user why ISM
passthrough is not allowed. Add a proper message.
Suggested-by: Thomas Huth <th...@redhat.com>
Signed-off-by: Matthew Rosato <mjros...@linux.ibm.com>
---
hw/s390x/s390-pci-bus.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 6cc0e7538a..c41c88f88e 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -1147,6 +1147,12 @@ static void s390_pcihost_plug(HotplugHandler
*hotplug_dev, DeviceState *dev,
pbdev->forwarding_assist = false;
}
+ if (pbdev->pft == ZPCI_PFT_ISM && !pbdev->interp) {
+ error_setg(errp, "zPCI interpretation is required for ISM device "
+ "passthrough");
+ goto pbdev_cleanup;
+ }
+
if (s390_pci_msix_init(pbdev) && !pbdev->interp) {
error_setg(errp, "MSI-X support is mandatory "
"in the S390 architecture");
--
2.48.1
