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authorHao Wu <hao.a.wu@intel.com>2018-06-22 16:53:28 +0800
committerHao Wu <hao.a.wu@intel.com>2019-02-22 08:20:08 +0800
commit87bc3f192e17cd8f7caf0f3b7a87e039ceab323f (patch)
tree392db15092df500941fabb976662af64b3ab9184 /BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
parent05fd2a9268332d770dd082be4af076ba0217cf54 (diff)
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MdeModulePkg/AhciPei: Add AHCI mode ATA device support in PEI
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1409 This commit will add the AHCI mode ATA device support in the PEI phase. More specifically, the newly add AhciPei driver will consume the ATA AHCI host controller PPI for ATA controllers working under AHCI code within the system. And then produces the below PPIs for each controller: EDKII PEI ATA PassThru PPI Storage Security Command PPI Also, the driver will consume the S3StorageDeviceInitList LockBox in S3 phase. The purpose is to perform an on-demand (partial) ATA device enumeration/initialization on each controller to benefit the S3 resume performance. The implementation of this driver is currently based on the below specifications: Serial ATA Revision 2.6 Serial ATA Advanced Host Controller Interface (AHCI) 1.3.1 AT Attachment with Packet Interface - 6 (ATA/ATAPI-6) Cc: Jian J Wang <jian.j.wang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
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