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charset="utf-8" Cc: Jordan Justen Cc: Laszlo Ersek Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Brijesh Singh --- OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSecLib.inf | 1 + OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c | 57 ++++++++++++++++++++ 2 files changed, 58 insertions(+) diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSecLib.inf b/OvmfPkg/Lib= rary/QemuFwCfgLib/QemuFwCfgSecLib.inf index 7a96575d1851..b782ac6c0aa2 100644 --- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSecLib.inf +++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSecLib.inf @@ -45,4 +45,5 @@ [LibraryClasses] DebugLib IoLib MemoryAllocationLib + MemEncryptSevLib =20 diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c b/OvmfPkg/Library/= QemuFwCfgLib/QemuFwCfgSec.c index 465ccbe90dad..cd04cc814063 100644 --- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c +++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c @@ -6,6 +6,7 @@ =20 Copyright (C) 2013, Red Hat, Inc. Copyright (c) 2011 - 2013, Intel Corporation. All rights reserved.
+ Copyright (c) 2017, Advanced Micro Devices. All rights reserved.
=20 This program and the accompanying materials are licensed and made availa= ble under the terms and conditions of the BSD License which accompanies this @@ -18,6 +19,7 @@ =20 #include #include +#include =20 #include "QemuFwCfgLibInternal.h" =20 @@ -94,3 +96,58 @@ InternalQemuFwCfgDmaIsAvailable ( { return FALSE; } + +/** + + Returns a boolean indicating whether SEV is enabled + + @retval TRUE SEV is enabled + @retval FALSE SEV is disabled +**/ +BOOLEAN +InternalQemuFwCfgSevIsEnabled ( + VOID + ) +{ + return MemEncryptSevIsEnabled (); +} + +/** + Allocate a bounce buffer for SEV DMA. + + @param[in] NumPage Number of pages. + @param[out] Buffer Allocated DMA Buffer pointer + +**/ +VOID +InternalQemuFwCfgSevDmaAllocateBuffer ( + IN UINT32 NumPages, + OUT VOID **Buffer + ) +{ + // + // We should never reach here + // + ASSERT (FALSE); + CpuDeadLoop (); +} + +/** + 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 + ) +{ + // + // We should never reach here + // + ASSERT (FALSE); + CpuDeadLoop (); +} --=20 2.7.4 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel