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[PATCH v3 4/8] s390x/pci: don't fence interpreted devices without MSI-X
From: |
Matthew Rosato |
Subject: |
[PATCH v3 4/8] s390x/pci: don't fence interpreted devices without MSI-X |
Date: |
Fri, 4 Feb 2022 16:19:14 -0500 |
Lack of MSI-X support is not an issue for interpreted passthrough
devices, so let's let these in. This will allow, for example, ISM
devices to be passed through -- but only when interpretation is
available and being used.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
hw/s390x/s390-pci-bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 4f89df18cd..316b969b5c 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -1099,7 +1099,7 @@ static void s390_pcihost_plug(HotplugHandler
*hotplug_dev, DeviceState *dev,
pbdev->interp = false;
}
- if (s390_pci_msix_init(pbdev)) {
+ if (s390_pci_msix_init(pbdev) && !pbdev->interp) {
error_setg(errp, "MSI-X support is mandatory "
"in the S390 architecture");
return;
--
2.27.0
- [PATCH v3 0/8] s390x/pci: zPCI interpretation support, Matthew Rosato, 2022/02/04
- [PATCH v3 2/8] target/s390x: add zpci-interp to cpu models, Matthew Rosato, 2022/02/04
- [PATCH v3 4/8] s390x/pci: don't fence interpreted devices without MSI-X,
Matthew Rosato <=
- [PATCH v3 1/8] Update linux headers, Matthew Rosato, 2022/02/04
- [PATCH v3 6/8] s390x/pci: use I/O Address Translation assist when interpreting, Matthew Rosato, 2022/02/04
- [PATCH v3 8/8] s390x/pci: let intercept devices have separate PCI groups, Matthew Rosato, 2022/02/04
- [PATCH v3 3/8] s390x/pci: enable for load/store intepretation, Matthew Rosato, 2022/02/04
- [PATCH v3 5/8] s390x/pci: enable adapter event notification for interpreted devices, Matthew Rosato, 2022/02/04
- [PATCH v3 7/8] s390x/pci: use dtsm provided from vfio capabilities for interpreted devices, Matthew Rosato, 2022/02/04