Commit Graph

2 Commits

Author SHA1 Message Date
Ruiyu Ni 6c252691c3 MdeModulePkg/DxeResetSystemLib: Avoid depending on UefiRuntimeLib
Current DxeResetSystemLib depends on UefiRuntimeLib because it calls
EfiResetSystem() API exposed by UefiRuntimeLib.

Due to the commit:
"MdePkg/UefiRuntimeLib: Do not allow to be linked by DXE driver"
which reverts UefiRuntimeLib to only support DXE_RUNTIME_DRIVER,
removing UefiRuntimeLib dependency makes the DxeResetSystemLib
can be used by DXE drivers.

The patch also disallows the DxeResetSystemLib to be linked by
runtime driver, SMM drivers.
Runtime driver cannot link to this library because the gRT is not
converted when entering to RT.
SMM driver cannot link to this library because calling RT services
from SMM after EndOfDxe violates security guideline.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
2018-06-05 13:49:17 +08:00
Michael D Kinney ce3cd892c8 MdeModulePkg: Add ResetSystemLib instances that call core services
Add a PEI instance of ResetSystemLib that calls the ResetSystem2()
service in the PEI Services Table.

Add a DXE instance of ResetSystemLib that calls the ResetSystem()
service in the UEFI Runtime Services Table.

These 2 library instances should be the default ResetSystemLib
mapping for most PEIMs and DXE drivers so all reset system requests
go through the core service.

Only the implementation of the core servies should use the
platform specific instance of the ResetSystemLib that actually
performs the hardware actions to reset the platform.

Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
2018-02-09 15:29:58 +08:00