On 05/11/17 00:09, Brijesh Singh wrote:
> Add SEV specific internal functions which will be used while intergrating
> the SEV support into QemuFwCfgLib.
> 
> 
> Cc: Jordan Justen <jordan.l.jus...@intel.com>
> Cc: Laszlo Ersek <ler...@redhat.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Brijesh Singh <brijesh.si...@amd.com>
> ---
>  OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h | 36 ++++++++++++++++++++
>  1 file changed, 36 insertions(+)
> 
> diff --git a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h 
> b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
> index 6e87c625102e..87573ff2fbe3 100644
> --- a/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
> +++ b/OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
> @@ -43,4 +43,40 @@ 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[in]     NumPage  Number of pages.
> +  @param[out]    Buffer   Allocated DMA Buffer pointer
> +
> +**/
> +VOID
> +InternalQemuFwCfgSevDmaAllocateBuffer (
> +  IN     UINT32   NumPages,
> +  OUT    VOID     **Buffer
> +  );

Can you reorder the function parameters here? So that the order match
the one in InternalQemuFwCfgSevDmaFreeBuffer() below.

With that fixed,

Reviewed-by: Laszlo Ersek <ler...@redhat.com>

Thanks,
Laszlo

> +
> +/**
> + 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
> 

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