On 05/22/17 17:23, Brijesh Singh wrote: > Cc: Jordan Justen <[email protected]> > Cc: Laszlo Ersek <[email protected]> > Contributed-under: TianoCore Contribution Agreement 1.0 > Signed-off-by: Brijesh Singh <[email protected]> > --- > OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c | 57 ++++++++++++++++++++ > 1 file changed, 57 insertions(+) > > diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c > b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c > index 465ccbe90dad..071b8d9b91d4 100644 > --- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c > +++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSec.c > @@ -6,6 +6,7 @@ > > Copyright (C) 2013, Red Hat, Inc. > Copyright (c) 2011 - 2013, Intel Corporation. All rights reserved.<BR> > + Copyright (c) 2017, Advanced Micro Devices. All rights reserved.<BR> > > This program and the accompanying materials are licensed and made available > under the terms and conditions of the BSD License which accompanies this > @@ -94,3 +95,59 @@ InternalQemuFwCfgDmaIsAvailable ( > { > return FALSE; > } > + > +/** > + > + Returns a boolean indicating whether SEV is enabled > + > + @retval TRUE SEV is enabled > + @retval FALSE SEV is disabled > +**/ > +BOOLEAN > +InternalQemuFwCfgSevIsEnabled ( > + VOID > + ) > +{ > + // > + // DMA is not supported in SEC phase hence SEV support is irrelevant > + // > + return FALSE; > +} > + > +/** > + Allocate a bounce buffer for SEV DMA. > + > + @param[in] NumPage Number of pages. > + @param[out] Buffer Allocated DMA Buffer pointer > + > +**/ > +VOID > +InternalQemuFwCfgSevDmaAllocateBuffer ( > + OUT VOID **Buffer, > + IN UINT32 NumPages > + ) > +{ > + // > + // We should never reach here > + // > + ASSERT (FALSE); > +} > + > +/** > + 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); > +} >
Reviewed-by: Laszlo Ersek <[email protected]> _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
