io range is not mandatory according to pcie spec,
so allow bridge configurations without io address
space assigned.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Reviewed-by: Ard Biesheuvel <a...@kernel.org>
---
MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
index b20bcd310ad5..51a3b987967f 100644
--- a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
+++ b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
@@ -1085,6 +1085,9 @@ NotifyPhase (
RootBridge->ResAllocNode[Index].Base = BaseAddress;
RootBridge->ResAllocNode[Index].Status = ResAllocated;
DEBUG ((DEBUG_INFO, "Success\n"));
+ } else if (Index == TypeIo) {
+ /* optional on PCIe */
+ DEBUG ((DEBUG_INFO, "No IO\n"));
} else {
ReturnStatus = EFI_OUT_OF_RESOURCES;
DEBUG ((DEBUG_ERROR, "Out Of Resource!\n"));
--
2.34.1
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