diff options
Diffstat (limited to 'IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h')
-rw-r--r-- | IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h index aa5926a7..720f5d4 100644 --- a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h @@ -15,9 +15,16 @@ #ifndef __DMA_ACCESS_LIB_H__
#define __DMA_ACCESS_LIB_H__
+typedef struct {
+ UINT8 HostAddressWidth;
+ UINTN VTdEngineCount;
+ UINT64 VTdEngineAddress[1];
+} VTD_INFO;
+
/**
Set DMA protected region.
+ @param EngineMask The mask of the VTd engine to be accessed.
@param LowMemoryBase The protected low memory region base.
@param LowMemoryLength The protected low memory region length.
@param HighMemoryBase The protected high memory region base.
@@ -28,6 +35,7 @@ **/
EFI_STATUS
SetDmaProtectedRange (
+ IN UINT64 EngineMask,
IN UINT32 LowMemoryBase,
IN UINT32 LowMemoryLength,
IN UINT64 HighMemoryBase,
@@ -37,31 +45,37 @@ SetDmaProtectedRange ( /**
Diable DMA protection.
+ @param EngineMask The mask of the VTd engine to be accessed.
+
@retval DMA protection is disabled.
**/
EFI_STATUS
DisableDmaProtection (
- VOID
+ IN UINT64 EngineMask
);
/**
Get protected low memory alignment.
+ @param EngineMask The mask of the VTd engine to be accessed.
+
@return protected low memory alignment.
**/
UINT32
GetLowMemoryAlignment (
- VOID
+ IN UINT64 EngineMask
);
/**
Get protected high memory alignment.
+ @param EngineMask The mask of the VTd engine to be accessed.
+
@return protected high memory alignment.
**/
UINT64
GetHighMemoryAlignment (
- VOID
+ IN UINT64 EngineMask
);
#endif
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