Add SEV specific internal functions which will be used while intergrating
the SEV support into QemuFwCfgLib.
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
---
OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h | 37 ++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
index 6e87c625102e..8cfa7913ffae 100644
--- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
+++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
@@ -2,6 +2,7 @@
Internal interfaces specific to the QemuFwCfgLib instances in OvmfPkg.
Copyright (C) 2016, Red Hat, Inc.
+ Copyright (C) 2017, Advanced Micro Devices. All rights reserved
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -43,4 +44,40 @@ InternalQemuFwCfgDmaIsAvailable (
VOID
);
+/**
+ Returns a boolean indicating whether SEV support is enabled
+
+ @retval TRUE SEV is enabled
+ @retval FALSE SEV is disabled
+**/
+BOOLEAN
+InternalQemuFwCfgSevIsEnabled (
+ VOID
+ );
+
+/**
+ Allocate a bounce buffer for SEV DMA.
+
+ @param[out] Buffer Allocated DMA Buffer pointer
+ @param[in] NumPage Number of pages.
+
+**/
+VOID
+InternalQemuFwCfgSevDmaAllocateBuffer (
+ OUT VOID **Buffer,
+ IN UINT32 NumPages
+ );
+
+/**
+ Free the DMA buffer allocated using InternalQemuFwCfgSevDmaAllocateBuffer
+
+ @param[in] NumPage Number of pages.
+ @param[in] Buffer DMA Buffer pointer
+
+**/
+VOID
+InternalQemuFwCfgSevDmaFreeBuffer (
+ IN VOID *Buffer,
+ IN UINT32 NumPages
+ );
#endif
--
2.7.4
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