diff options
Diffstat (limited to 'MdePkg/Library/BasePciLibCf8')
-rw-r--r-- | MdePkg/Library/BasePciLibCf8/PciLib.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/MdePkg/Library/BasePciLibCf8/PciLib.c b/MdePkg/Library/BasePciLibCf8/PciLib.c index af71b88e59..d4a3ef06f6 100644 --- a/MdePkg/Library/BasePciLibCf8/PciLib.c +++ b/MdePkg/Library/BasePciLibCf8/PciLib.c @@ -20,6 +20,33 @@ #include <Library/PciCf8Lib.h>
/**
+ Register a PCI device so PCI configuration registers may be accessed after
+ SetVirtualAddressMap().
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @retval RETURN_SUCCESS The PCI device was registered for runtime access.
+ @retval RETURN_UNSUPPORTED An attempt was made to call this function
+ after ExitBootServices().
+ @retval RETURN_UNSUPPORTED The resources required to access the PCI device
+ at runtime could not be mapped.
+ @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to
+ complete the registration.
+
+**/
+RETURN_STATUS
+EFIAPI
+PciRegisterForRuntimeAccess (
+ IN UINTN Address
+ )
+{
+ return PciCf8RegisterForRuntimeAccess (Address);
+}
+
+/**
Reads an 8-bit PCI configuration register.
Reads and returns the 8-bit PCI configuration register specified by Address.
|