Add SEV specific internal functions which will be used while intergrating the SEV support into QemuFwCfgLib.
Cc: Jordan Justen <[email protected]> Cc: Laszlo Ersek <[email protected]> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Brijesh Singh <[email protected]> Reviewed-by: Laszlo Ersek <[email protected]> --- 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 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
