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* [edk2-devel] [PATCH v7 0/5] MdePkg: Add macro definitions for CET feature for NASM files.
@ 2023-12-06  8:16 Sheng Wei
  2023-12-06  8:16 ` [edk2-devel] [PATCH v7 1/5] UefiCpuPkg: " Sheng Wei
                   ` (4 more replies)
  0 siblings, 5 replies; 9+ messages in thread
From: Sheng Wei @ 2023-12-06  8:16 UTC (permalink / raw)
  To: devel

Patch V7:
  Remove all the change in MdePkg.
  Move cet.inc to UefiCpuPkg\PiSmmCpuDxeSmm,
  beacuse CET feature is only used in SMM.

Patch V6:
  Cet.inc only contains definitions for x86 CPU.
  Move the file to \Ia32 and \X64 folder.
  Refine code for cet.inc.

Patch V5:
  File cet.inc will be used in both MdePkg UefiCpuPkg.
  Move cet.inc file from UefiCpuPkg to MdePkg.
  Use macro CR4_CET_BIT to replace hard code value for
   both LongJump.nasm and SetJump.nasm.

Patch V4:
  Separate the changes to 5 patches.
    1) Add macro definitions for CET feature for NASM files.
    2) Use macro CR4_CET_BIT to replace hard code value in Cet.nasm.
    3) Use CET macro definitions in Cet.inc for SmiEntry.nasm files.
    4) Only change CR4.CET bit for enable/disable CET.
    5) Backup and Restore MSR IA32_U_CET in SMI handler.
  Remove some unused code.
    It is no need to clear MSR IA32_S_CET,
     because clear CR4.CET bit will disable all CET functions.
    Since CET is disabled between clear CR4.CET and run 'rsm',
     it is no need to delay MSR IA32_S_CET restoration.

Patch V3:
  Remove the 3rd patch. mSmmInterruptSspTables is a global variable.
  It is unnecessary to initializ it to zero manually.

Patch V2:
  No function change with Patch V1.
  Split the patch to into 3 separate patches.


Sheng Wei (5):
  UefiCpuPkg: Add macro definitions for CET feature for NASM files.
  UefiCpuPkg: Use macro CR4_CET_BIT to replace hard code value in
    Cet.nasm.
  UefiCpuPkg: Use CET macro definitions in Cet.inc for SmiEntry.nasm
    files.
  UefiCpuPkg: Only change CR4.CET bit for enable and disable CET.
  UefiCpuPkg: Backup and Restore MSR IA32_U_CET in SMI handler.

 UefiCpuPkg/PiSmmCpuDxeSmm/Cet.inc            | 26 +++++++++++++
 UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/Cet.nasm      |  5 ++-
 UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiEntry.nasm | 39 +++++++++++--------
 UefiCpuPkg/PiSmmCpuDxeSmm/X64/Cet.nasm       |  5 ++-
 UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm  | 40 +++++++++++---------
 5 files changed, 78 insertions(+), 37 deletions(-)
 create mode 100644 UefiCpuPkg/PiSmmCpuDxeSmm/Cet.inc

-- 
2.26.2.windows.1



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^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2023-12-11 17:48 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-12-06  8:16 [edk2-devel] [PATCH v7 0/5] MdePkg: Add macro definitions for CET feature for NASM files Sheng Wei
2023-12-06  8:16 ` [edk2-devel] [PATCH v7 1/5] UefiCpuPkg: " Sheng Wei
2023-12-07  8:41   ` Ni, Ray
2023-12-07  9:01     ` Sheng Wei
2023-12-11 17:48       ` Laszlo Ersek
2023-12-06  8:16 ` [edk2-devel] [PATCH v7 2/5] UefiCpuPkg: Use macro CR4_CET_BIT to replace hard code value in Cet.nasm Sheng Wei
2023-12-06  8:16 ` [edk2-devel] [PATCH v7 3/5] UefiCpuPkg: Use CET macro definitions in Cet.inc for SmiEntry.nasm files Sheng Wei
2023-12-06  8:16 ` [edk2-devel] [PATCH v7 4/5] UefiCpuPkg: Only change CR4.CET bit for enable and disable CET Sheng Wei
2023-12-06  8:16 ` [edk2-devel] [PATCH v7 5/5] UefiCpuPkg: Backup and Restore MSR IA32_U_CET in SMI handler Sheng Wei

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