Re: [PATCH 08/12] s390x/pci: don't fence interpreted devices without MSI-X

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On 07/12/2021 22.04, Matthew Rosato wrote:
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.

Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>
---
  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 451bd32d92..503326210a 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -1096,7 +1096,7 @@ 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;


Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>




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