Tianocore/edk2.git/IntelFsp2Pkg/Library/BaseFspCommonLib, branch dependabot/github_actions/actions/setup-python-7

IntelFsp2Pkg: Save/restore FSBASE/GSBASE in entry and exit

2026-03-09T16:21:26+00:00

FSP may store something in FSBASE/GSBASE while bootloader may do so as well. Add the FSBASE/GSBASE save/restore logic in the FSP entry and exit to avoid the contents in FSBASE/GSBASE are corrupted by the other party. The change assumes there is no very old CPU that does not support rdfsbase/wrfsbase/rdgsbase/wrgsbase instructions. Signed-off-by: Ray Ni

IntelFsp2Pkg: Preserve GDTR and CS/DS/ES/FS/GS/SS

2025-07-18T06:21:48+00:00

Bootloader does not expect FSP modifies GDTR and segment selectors, update FSP entry/exit code to preserve these registers. Signed-off-by: Ray Ni Cc: Chasel Chiu Cc: Nate DeSimone Cc: Star Zeng Cc: Ted Kuo Cc: Ashraf Ali S

IntelFsp2Pkg/FspCommonLib: Remove unused API SetFspCoreStackPointer()

2025-07-16T06:47:27+00:00

Signed-off-by: Ray Ni Cc: Chasel Chiu Cc: Nate DeSimone Cc: Star Zeng Cc: Ted Kuo Cc: Ashraf Ali S

IntelFsp2Pkg : Refactor BaseFspCommonLib to reduce binary size

2024-09-30T08:15:35+00:00

Moved FspApiReturnStatusReset API to a separate file to eliminate unnecessary inclusion of FspApiReturnStatusReset APIs in driver binary. When the compiler linking the Object files it may not remove all the unused from NASM OBJs. This change is to reorganize the C files to minimize the impact of the NASM behavior resulting is code size reduction. Signed-off-by: Ashraf Ali

IntelFsp2Pkg: Support FSP API to save and restore page table

2024-09-11T05:45:54+00:00

A potential issue may happen when FSP creates/changes page table while bootloader doesn't expect page table being changed in FSP. Current, FSP API support to save/restore stack, IDT and general purpose registers. Following the same pattern, add save/restore page table support to solve this issue. Note that this feature only impacts FSP API mode, and is controlled by PCD PcdFspSaveRestorePageTableEnable. For compatibility, the PCD default value is set as FALSE. Signed-off-by: Zhiguang Liu

IntelFsp2Pkg: Align FSP global data pointer for X64 build

2024-08-28T13:40:56+00:00

When it used 32 bits for set FSP global data pointer under X64 build, it should get FSP global data pointer with 32 bits data under X64 build. Signed-off-by: Hongbin1 Zhang Cc: Chasel Chiu Cc: Nate DeSimone Cc: Duggapu Chinni B Cc: Star Zeng Cc: Ted Kuo Cc: Ashraf Ali S

IntelFsp2Pkg: Add get and set FspSmmInit upd data pointer functions

2023-08-28T21:25:11+00:00

FSP-SMM module need get and set FspSmmInit upd data pointer functions to get and set upd settings. Signed-off-by: Hongbin1 Zhang Cc: Chasel Chiu Cc: Nate DeSimone Cc: Duggapu Chinni B Cc: Ray Han Lim Ng Cc: Star Zeng Cc: Ted Kuo Cc: Ashraf Ali S Cc: Susovan Mohapatra Reviewed-by: S Ashraf Ali Reviewed-by: Chasel Chiu

IntelFsp2Pkg/Library/BaseFspCommonLib: Fix OVERRUN Coverity issue

2023-05-30T05:13:36+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4200 FspData->PerfIdx is getting increased for every call unconditionally in the function SetFspMeasurePoint and hence memory access can happen for out of bound FspData->PerfData[] array entries also. Example - FspData->PerfData is an array of 32 UINT64 entries. Assume a call is made to SetFspMeasurePoint function when the FspData->PerfIdx last value is 31. It gets incremented to 32 at line 400. Any subsequent call to SetFspMeasurePoint functions leads to FspData->PerfData[32] getting accessed which is out of the PerfData array as well as the FSP_GLOBAL_DATA structure boundary. Hence keep array access and index increment inside if block only and return invalid performance timestamp when PerfIdx is invalid. Cc: Chasel Chiu Cc: Nate DeSimone Cc: Star Zeng Signed-off-by: Ranbir Singh Acked-by: Pedro Falcato Reviewed-by: Chasel Chiu

IntelFsp2Pkg: Support 64bit FspResetType for X64 build.

2022-07-19T22:24:31+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3999 FspResetType will be either 32bit or 64 bit basing on the build type. Cc: Nate DeSimone Cc: Star Zeng Signed-off-by: Chasel Chiu Reviewed-by: Nate DeSimone

IntelFsp2Pkg: FspSecCore support for X64

2022-04-16T00:18:14+00:00

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3893 1.Added FspSecCore support for X64. 2.Bumped FSP header revision to 7 to indicate FSP 64bit is supported. 3.Corrected few typos. Cc: Chasel Chiu Cc: Nate DeSimone Cc: Star Zeng Cc: Ashraf Ali S Signed-off-by: Ted Kuo Reviewed-by: Chasel Chiu Reviewed-by: Nate DeSimone