I missed that part. I'll add it. Thanks.
Regards,
Jian
> -----Original Message-----
> From: Yao, Jiewen
> Sent: Thursday, December 07, 2017 4:17 PM
> To: Wang, Jian J <jian.j.wang@intel.com>; edk2-devel@lists.01.org
> Subject: RE: [edk2] [PATCH v4 00/11] Implement stack guard feature
>
> Thanks. I still think we should add version field, just in case we need add more in
> this CPU_EXCEPTION_INIT_DATA.
>
> With version field added, reviewed-by: Jiewen.yao@intel.com
>
> I suggest CpuModulePkg can double check the patch.
>
> Thank you
> Yao Jiewen
>
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Jian
> J
> > Wang
> > Sent: Wednesday, December 6, 2017 4:50 PM
> > To: edk2-devel@lists.01.org
> > Subject: [edk2] [PATCH v4 00/11] Implement stack guard feature
> >
> > > v4:
> > > a. Change name of new data structure from
> CPU_EXCEPTION_INIT_DATA_EX
> > > to CPU_EXCEPTION_INIT_DATA
> > > b. Add "size" field for all "buffer" fields in CPU_EXCEPTION_INIT_DATA
> > > c. Add separate fields for IA32 and X64 in CPU_EXCEPTION_INIT_DATA
> > > d. Change related code per changes in CPU_EXCEPTION_INIT_DATA
> >
> > > v3:
> > > a. Change new API InitializeCpuExceptionStackSwitchHandlers() to
> > > InitializeCpuExceptionHandlersEx(). Related code are updated
> > accordingly.
> > > b. Move EXCEPTION_STACK_SWITCH_DATA to CpuExceptionHandlerLib.h
> > > and change the name to CPU_EXCEPTION_INIT_DATA_EX for the sake
> > > of the API name change.
> > > c. Add more general macros in BaseLib.h.
> > > d. Add dummy implementation of InitializeCpuExceptionHandlersEx for
> > > SEC, PEI and SMM but implement a full version for DXE.
> > > e. Add dummy InitializeCpuExceptionHandlersEx for ARM's
> > CpuExceptionHandlerLib
> > > and NULL version of CpuExceptionHandlerLib
> > > f. Call InitializeCpuExceptionHandlersEx() in DxeMain instead of
> > > InitializeCpuExceptionHandlers().
> >
> >
> > > v2:
> > > a. Introduce and implement new API
> > InitializeCpuExceptionStackSwitchHandlers().
> > > b. Add stack switch related general definitions of IA32 in BaseLib.h.
> > > c. Add two new PCDs to configure exception vector list and stack size.
> > > d. Add code to save/restore GDTR, IDTR and TR for AP.
> > > e. Refactor exception handler code for stack switch.
> > > f. Add code to setup stack switch for AP besides BSP.
> >
> > Stack guard feature makes use of paging mechanism to monitor if there's a
> > stack overflow occurred during boot. A new PCD PcdCpuStackGuard is added
> to
> > enable/disable this feature. PCD PcdCpuStackSwitchExceptionList and
> > PcdCpuKnownGoodStackSize are introduced to configure the required
> > exceptions
> > and stack size.
> >
> > If this feature is enabled, DxeIpl will setup page tables and set page where
> > the stack bottom is at to be NON-PRESENT. If stack overflow occurs, Page
> > Fault exception will be triggered.
> >
> > In order to make sure exception handler works normally even when the stack
> > is corrupted, stack switching is implemented in exception library.
> >
> > Due to the mechanism behind Stack Guard, this feature is only avaiable for
> > UEFI drivers (memory avaiable). That also means it doesn't support NT32
> > emulated platform (paging not supported).
> >
> > Jian J Wang (11):
> > MdeModulePkg/metafile: Add PCD PcdCpuStackGuard
> > UefiCpuPkg/UefiCpuPkg.dec: Add two new PCDs for stack switch
> > MdeModulePkg/CpuExceptionHandlerLib.h: Add a new API
> > InitializeCpuExceptionHandlersEx
> > MdePkg/BaseLib: Add stack switch related definitions for IA32
> > UefiCpuPkg/CpuExceptionHandlerLib: Add stack switch support
> > MdeModulePkg/CpuExceptionHandlerLibNull: Add new API implementation
> > ArmPkg/ArmExceptionLib: Add implementation of new API
> > UefiCpuPkg/MpLib: Add GDTR, IDTR and TR in saved AP data
> > UefiCpuPkg/CpuDxe: Initialize stack switch for MP
> > MdeModulePkg/Core/Dxe: Call new API InitializeCpuExceptionHandlersEx
> > instead
> > MdeModulePkg/DxeIpl: Enable paging for Stack Guard
> >
> > ArmPkg/Library/ArmExceptionLib/ArmExceptionLib.c | 33 ++
> > MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c | 2 +-
> > MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 5 +-
> > MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c | 4 +
> > MdeModulePkg/Core/DxeIplPeim/X64/DxeLoadFunc.c | 1 +
> > MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.c | 51 ++-
> > .../Include/Library/CpuExceptionHandlerLib.h | 91 +++++
> > .../CpuExceptionHandlerLibNull.c | 34 ++
> > MdeModulePkg/MdeModulePkg.dec | 7 +
> > MdeModulePkg/MdeModulePkg.uni | 7 +
> > MdePkg/Include/Library/BaseLib.h | 117 ++++++
> > MdePkg/Library/BaseLib/BaseLib.inf | 3 +
> > MdePkg/Library/BaseLib/Ia32/WriteTr.nasm | 36 ++
> > MdePkg/Library/BaseLib/X64/WriteTr.nasm | 37 ++
> > UefiCpuPkg/CpuDxe/CpuDxe.inf | 3 +
> > UefiCpuPkg/CpuDxe/CpuMp.c | 188
> > ++++++++++
> > .../CpuExceptionHandlerLib/CpuExceptionCommon.h | 39 ++
> > .../DxeCpuExceptionHandlerLib.inf | 6 +
> > .../Library/CpuExceptionHandlerLib/DxeException.c | 83 +++++
> > .../Ia32/ArchExceptionHandler.c | 187 ++++++++++
> > .../Ia32/ArchInterruptDefs.h | 8 +
> > .../Ia32/ExceptionTssEntryAsm.nasm | 398
> > +++++++++++++++++++++
> > .../CpuExceptionHandlerLib/PeiCpuException.c | 34 +-
> > .../PeiCpuExceptionHandlerLib.inf | 1 +
> > .../CpuExceptionHandlerLib/SecPeiCpuException.c | 34 +-
> > .../SecPeiCpuExceptionHandlerLib.inf | 1 +
> > .../SmmCpuExceptionHandlerLib.inf | 1 +
> > .../Library/CpuExceptionHandlerLib/SmmException.c | 34 +-
> > .../X64/ArchExceptionHandler.c | 155 ++++++++
> > .../CpuExceptionHandlerLib/X64/ArchInterruptDefs.h | 3 +
> > UefiCpuPkg/Library/MpInitLib/MpLib.c | 17 +
> > UefiCpuPkg/Library/MpInitLib/MpLib.h | 3 +
> > UefiCpuPkg/UefiCpuPkg.dec | 12 +
> > 33 files changed, 1616 insertions(+), 19 deletions(-)
> > create mode 100644 MdePkg/Library/BaseLib/Ia32/WriteTr.nasm
> > create mode 100644 MdePkg/Library/BaseLib/X64/WriteTr.nasm
> > create mode 100644
> >
> UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ExceptionTssEntryAsm.nasm
> >
> > --
> > 2.15.1.windows.2
> >
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
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