diff options
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridge.h | 1 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c | 4 | ||||
| -rw-r--r-- | MdeModulePkg/Include/Library/PciHostBridgeLib.h | 4 |
3 files changed, 8 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridge.h b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridge.h index b1e83f1c9..aa3f43a51 100644 --- a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridge.h +++ b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridge.h @@ -72,6 +72,7 @@ typedef struct { PCI_ROOT_BRIDGE_APERTURE MemAbove4G;
PCI_ROOT_BRIDGE_APERTURE PMemAbove4G;
BOOLEAN DmaAbove4G;
+ BOOLEAN NoExtendedConfigSpace;
VOID *ConfigBuffer;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
CHAR16 *DevicePathStr;
diff --git a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c index 932aefd5d..cda9b49b3 100644 --- a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c +++ b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c @@ -80,6 +80,7 @@ CreateRootBridge ( DEBUG ((EFI_D_INFO, "%s\n", DevicePathStr = ConvertDevicePathToText (Bridge->DevicePath, FALSE, FALSE)));
DEBUG ((EFI_D_INFO, " Support/Attr: %lx / %lx\n", Bridge->Supports, Bridge->Attributes));
DEBUG ((EFI_D_INFO, " DmaAbove4G: %s\n", Bridge->DmaAbove4G ? L"Yes" : L"No"));
+ DEBUG ((EFI_D_INFO, "NoExtConfSpace: %s\n", Bridge->NoExtendedConfigSpace ? L"Yes" : L"No"));
DEBUG ((EFI_D_INFO, " AllocAttr: %lx (%s%s)\n", Bridge->AllocationAttributes,
(Bridge->AllocationAttributes & EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM) != 0 ? L"CombineMemPMem " : L"",
(Bridge->AllocationAttributes & EFI_PCI_HOST_BRIDGE_MEM64_DECODE) != 0 ? L"Mem64Decode" : L""
@@ -155,6 +156,7 @@ CreateRootBridge ( RootBridge->Supports = Bridge->Supports;
RootBridge->Attributes = Bridge->Attributes;
RootBridge->DmaAbove4G = Bridge->DmaAbove4G;
+ RootBridge->NoExtendedConfigSpace = Bridge->NoExtendedConfigSpace;
RootBridge->AllocationAttributes = Bridge->AllocationAttributes;
RootBridge->DevicePath = DuplicateDevicePath (Bridge->DevicePath);
RootBridge->DevicePathStr = DevicePathStr;
@@ -351,7 +353,7 @@ RootBridgeIoCheckParameter ( Address = PciRbAddr->Register;
}
Base = 0;
- Limit = 0xFFF;
+ Limit = RootBridge->NoExtendedConfigSpace ? 0xFF : 0xFFF;
}
if (Address < Base) {
diff --git a/MdeModulePkg/Include/Library/PciHostBridgeLib.h b/MdeModulePkg/Include/Library/PciHostBridgeLib.h index 16ad104a9..b67ac5e17 100644 --- a/MdeModulePkg/Include/Library/PciHostBridgeLib.h +++ b/MdeModulePkg/Include/Library/PciHostBridgeLib.h @@ -34,6 +34,10 @@ typedef struct { ///< and SetAttributes() in EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
BOOLEAN DmaAbove4G; ///< DMA above 4GB memory.
///< Set to TRUE when root bridge supports DMA above 4GB memory.
+ BOOLEAN NoExtendedConfigSpace; ///< When FALSE, the root bridge supports
+ ///< Extended (4096-byte) Configuration Space.
+ ///< When TRUE, the root bridge supports
+ ///< 256-byte Configuration Space only.
UINT64 AllocationAttributes; ///< Allocation attributes.
///< Refer to EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM and
///< EFI_PCI_HOST_BRIDGE_MEM64_DECODE used by GetAllocAttributes()
|