diff options
Diffstat (limited to 'IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c')
-rw-r--r-- | IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c index 841a5a9264..25d7c80af1 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/IntelVTdDxe.c @@ -114,6 +114,24 @@ IoMmuFreeBuffer ( );
/**
+ This function fills DeviceHandle/IoMmuAccess to the MAP_HANDLE_INFO,
+ based upon the DeviceAddress.
+
+ @param[in] DeviceHandle The device who initiates the DMA access request.
+ @param[in] DeviceAddress The base of device memory address to be used as the DMA memory.
+ @param[in] Length The length of device memory address to be used as the DMA memory.
+ @param[in] IoMmuAccess The IOMMU access.
+
+**/
+VOID
+SyncDeviceHandleToMapInfo (
+ IN EFI_HANDLE DeviceHandle,
+ IN EFI_PHYSICAL_ADDRESS DeviceAddress,
+ IN UINT64 Length,
+ IN UINT64 IoMmuAccess
+ );
+
+/**
Convert the DeviceHandle to SourceId and Segment.
@param[in] DeviceHandle The device who initiates the DMA access request.
@@ -236,21 +254,30 @@ VTdSetAttribute ( // Record the entry to driver global variable.
// As such once VTd is activated, the setting can be adopted.
//
- return RequestAccessAttribute (Segment, SourceId, DeviceAddress, Length, IoMmuAccess);
+ Status = RequestAccessAttribute (Segment, SourceId, DeviceAddress, Length, IoMmuAccess);
+ } else {
+ PERF_CODE (
+ AsciiSPrint (PerfToken, sizeof(PerfToken), "S%04xB%02xD%02xF%01x", Segment, SourceId.Bits.Bus, SourceId.Bits.Device, SourceId.Bits.Function);
+ Identifier = (Segment << 16) | SourceId.Uint16;
+ PERF_START_EX (gImageHandle, PerfToken, "IntelVTD", 0, Identifier);
+ );
+
+ Status = SetAccessAttribute (Segment, SourceId, DeviceAddress, Length, IoMmuAccess);
+
+ PERF_CODE (
+ Identifier = (Segment << 16) | SourceId.Uint16;
+ PERF_END_EX (gImageHandle, PerfToken, "IntelVTD", 0, Identifier);
+ );
}
- PERF_CODE (
- AsciiSPrint (PerfToken, sizeof(PerfToken), "S%04xB%02xD%02xF%01x", Segment, SourceId.Bits.Bus, SourceId.Bits.Device, SourceId.Bits.Function);
- Identifier = (Segment << 16) | SourceId.Uint16;
- PERF_START_EX (gImageHandle, PerfToken, "IntelVTD", 0, Identifier);
- );
-
- Status = SetAccessAttribute (Segment, SourceId, DeviceAddress, Length, IoMmuAccess);
-
- PERF_CODE (
- Identifier = (Segment << 16) | SourceId.Uint16;
- PERF_END_EX (gImageHandle, PerfToken, "IntelVTD", 0, Identifier);
- );
+ if (!EFI_ERROR(Status)) {
+ SyncDeviceHandleToMapInfo (
+ DeviceHandle,
+ DeviceAddress,
+ Length,
+ IoMmuAccess
+ );
+ }
return Status;
}
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