[xen stable-4.19] PCI: handle PCI->PCIe bridges as well in alloc_pdev()

[patchbot@xxxxxxx]

commit 91926059d531a24c4f6a60396329679d3d477096
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Jan 29 13:48:52 2026 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Jan 29 13:48:52 2026 +0100

    PCI: handle PCI->PCIe bridges as well in alloc_pdev()
    
    It's not clear why the enumerator was omitted, as these clearly shouldn't
    take the "default" path (issuing a warning). Handle them the same as
    legacy and PCIe->PCI bridges.
    
    Fixes: e7e08d86ad2f ("IOMMU/PCI: consolidate pdev_type() and cache its 
result for a given device")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
    master commit: cd2b9f0b1986a8581ac22c7276edce0f1fc17d26
    master date: 2026-01-22 09:13:14 +0100
---
 xen/drivers/passthrough/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c
index 80e06c0a78..1633825738 100644
--- a/xen/drivers/passthrough/pci.c
+++ b/xen/drivers/passthrough/pci.c
@@ -354,6 +354,7 @@ static struct pci_dev *alloc_pdev(struct pci_seg *pseg, u8 
bus, u8 devfn)
         unsigned long flags;
 
         case DEV_TYPE_PCIe2PCI_BRIDGE:
+        case DEV_TYPE_PCI2PCIe_BRIDGE:
         case DEV_TYPE_LEGACY_PCI_BRIDGE:
             sec_bus = pci_conf_read8(pdev->sbdf, PCI_SECONDARY_BUS);
             sub_bus = pci_conf_read8(pdev->sbdf, PCI_SUBORDINATE_BUS);
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.19