For test, can we test boot OS (windows/Linux) with PcdCpuStackGuard enabled?
Thank you Yao Jiewen > -----Original Message----- > From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of Jian J > Wang > Sent: Wednesday, November 22, 2017 4:46 PM > To: edk2-devel@lists.01.org > Subject: [edk2] [PATCH v2 0/8] Implement stack guard feature > > 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). > > Validation works include: > a. OVMF emulated platform: boot to shell (IA32/X64) > b. Intel real platform: boot to shell (IA32/X64) > > Jian J Wang (8): > MdeModulePkg/metafile: Add PCD PcdCpuStackGuard > MdeModulePkg/CpuExceptionHandlerLib.h: Add a new API > MdePkg/BaseLib: Add stack switch related definitions for IA32 > MdeModulePkg/DxeIpl: Enable paging for Stack Guard > UefiCpuPkg/UefiCpuPkg.dec: Add two new PCDs for stack switch > UefiCpuPkg/MpLib: Add GDTR, IDTR and TR in saved AP data > UefiCpuPkg/CpuExceptionHandlerLib: Add stack switch support > UefiCpuPkg/CpuDxe: Initialize stack switch for MP > > 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 | 18 + > MdeModulePkg/MdeModulePkg.dec | 7 + > MdeModulePkg/MdeModulePkg.uni | 7 + > MdePkg/Include/Library/BaseLib.h | 115 ++++++ > 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 | 168 +++++++++ > UefiCpuPkg/CpuDxe/CpuMp.h | 12 + > .../CpuExceptionHandlerLib/CpuExceptionCommon.h | 50 +++ > .../DxeCpuExceptionHandlerLib.inf | 6 + > .../Library/CpuExceptionHandlerLib/DxeException.c | 53 ++- > .../Ia32/ArchExceptionHandler.c | 167 +++++++++ > .../Ia32/ArchInterruptDefs.h | 8 + > .../Ia32/ExceptionTssEntryAsm.nasm | 398 > +++++++++++++++++++++ > .../PeiCpuExceptionHandlerLib.inf | 1 + > .../SecPeiCpuExceptionHandlerLib.inf | 1 + > .../SmmCpuExceptionHandlerLib.inf | 1 + > .../X64/ArchExceptionHandler.c | 133 +++++++ > .../CpuExceptionHandlerLib/X64/ArchInterruptDefs.h | 3 + > UefiCpuPkg/Library/MpInitLib/MpLib.c | 17 + > UefiCpuPkg/Library/MpInitLib/MpLib.h | 3 + > UefiCpuPkg/UefiCpuPkg.dec | 12 + > 28 files changed, 1304 insertions(+), 16 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 > > -- > 2.14.1.windows.1 > > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.01.org > https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
