REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1409
For the current implementation of OpalPassword drivers, it has a feature
to support devices being automatically unlocked in the S3 resume. For this
feature, two types of devices are supported:
* ATA hard disks working under AHCI mode
* NVM Express devices
The support of this feature requires the above 2 types of device to be
initialized at the PEI phase during S3 resume, which is done by the
co-work of the OpalPasswordDxe driver and the OpalPasswordPei driver.
More specifically, the OpalPasswordDxe will handle:
* Pre-allocate MMIO resource and save it in a driver internal LockBox for
OpalPasswordPei to retrieve;
* Save the PCI configuration space of ATA controllers into boot script.
Meanwhile, the OpalPasswordPei will handle:
* Rely on the boot script for the PCI configuration space program of ATA
controllers;
* Restore the driver internal LockBox to get the MMIO resource;
* Complete the PCI configuration space program for ATA and NVME
controllers;
* Initialize ATA and NVME controllers and devices.
This commit will remove these hardware initialization related codes from
the OpalPassword drivers. The hardware initialization will be covered by
PEI storage device drivers (e.g. NvmExpressPei & AhciPei in the
MdeModulePkg).
After such codes removal, the OpalPasswordDxe will only handle:
* Construct/update the S3StorageDeviceInitList LockBox with the managing
ATA and NVME devices.
And the OpalPasswordPei will only handle:
* Locate Storage Security Command PPI instances to perform the device
automatic unlock during the S3 resume.
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
After IOMMU is enabled in S3, original solution with SMM device
code (OpalPasswordSmm) to unlock OPAL device for S3 will not work
as the DMA operation will be aborted without granted DMA buffer.
Instead, this solution is to add OpalPasswordPei to eliminate
SMM device code, and OPAL setup UI produced by OpalPasswordDxe
will be updated to send requests (set password, update password,
and etc), and then the requests will be processed in next boot
before SmmReadyToLock, password and device info will be saved to
lock box used by OpalPasswordPei to unlock OPAL device for S3.
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Hao Wu
Chen A Chen
Star Zeng