Commit 442f727b8b for qemu.org

commit 442f727b8bebabf20a4f6a7536a4ff2885402030
Author: Farhan Ali <alifm@linux.ibm.com>
Date:   Thu May 21 11:29:46 2026 -0700

    s390x/pci: Fix interrupt forwarding disable for interpreted devices

    Remove the FH_MASK_ENABLE check when disabling interrupt forwarding
    during device reset. This check was broken for the default case in
    the switch statement above, preventing proper cleanup of interrupt
    forwarding.

    The pbdev->aif check in s390_pci_kvm_aif_disable() already guards
    against double-disabling of interrupt forwarding.

    Cc: qemu-stable@nongnu.org
    Reported-by: Niklas Schnelle <schnelle@linux.ibm.com>
    Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
    Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
    Tested-by: Omar Elghoul <oelghoul@linux.ibm.com>
    Message-ID: <20260521182946.1607-1-alifm@linux.ibm.com>
    Signed-off-by: Cornelia Huck <cohuck@redhat.com>

diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 4de7b587e8..eb2b6185db 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -1504,7 +1504,7 @@ static void s390_pci_device_reset(DeviceState *dev)
         break;
     }

-    if (pbdev->interp && (pbdev->fh & FH_MASK_ENABLE)) {
+    if (pbdev->interp) {
         /* Interpreted devices were using interrupt forwarding */
         s390_pci_kvm_aif_disable(pbdev);
     } else if (pbdev->summary_ind) {