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20:EOvoqO64FEcnc/kpER/v9bfM60I932ZaF3Trr0hIyz4z2jyngK2FL4BZASkUI4xIl7ECBRj5fvikztr5vM52Fn4cbW5u66eQSStPj6OPeu/EUUwWFYydw49f++xIf7bRRZCl/qqEokGLOaitI+MfPyjSHwQ32DS/Cui++mofyrQ2gviDysGej/ertpTz28iqapKZhDLaoxhV8S2nxKNNjaxkTvTTSCSnlOTMuwiC8uEyzeD2zu7BtpfSYpAyadnM X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 May 2017 22:09:48.3898 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR12MB0149 Subject: [edk2] [RFC v4 08/13] OvmfPkg/QemuFwCfgLib: Prepare for SEV support X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas.Lendacky@amd.com, leo.duran@amd.com, Laszlo Ersek , Jordan Justen Content-Transfer-Encoding: quoted-printable Errors-To: edk2-devel-bounces@lists.01.org Sender: "edk2-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_4 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add SEV specific internal functions which will be used while intergrating the SEV support into QemuFwCfgLib. Cc: Jordan Justen Cc: Laszlo Ersek Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Brijesh Singh Reviewed-by: Laszlo Ersek --- 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 ); =20 +/** + 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 + ); + +/** + 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 --=20 2.7.4 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel