OvmfPkg: PciHostBridgeLib: set supported and initial attributes in RootBus

These settings are copied from the RootBridgeConstructor() function, file
"OvmfPkg/PciHostBridgeDxe/PciRootBridgeIo.c".

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
index 39dc2b5acb..db260291b8 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -17,6 +17,8 @@
 

 #include <IndustryStandard/Pci.h>

 

+#include <Protocol/PciRootBridgeIo.h>

+

 #include <Library/BaseMemoryLib.h>

 #include <Library/DebugLib.h>

 #include <Library/MemoryAllocationLib.h>

@@ -71,6 +73,15 @@ InitRootBridge (
 

   RootBus->Segment = 0;

 

+  RootBus->Supports   = EFI_PCI_ATTRIBUTE_IDE_PRIMARY_IO |

+                        EFI_PCI_ATTRIBUTE_IDE_SECONDARY_IO |

+                        EFI_PCI_ATTRIBUTE_ISA_IO_16 |

+                        EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO |

+                        EFI_PCI_ATTRIBUTE_VGA_MEMORY |

+                        EFI_PCI_ATTRIBUTE_VGA_IO_16  |

+                        EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;

+  RootBus->Attributes = RootBus->Supports;

+

   return EFI_OUT_OF_RESOURCES;

 }