BZ#: https://bugzilla.tianocore.org/show_bug.cgi?id=1116
Since the stack memory is allocated as EfiBootServicesData, its NX protection can be covered by BIT4 of PcdDxeNxMemoryProtectionPolicy. To avoid confusing in setting related PCDs, PcdSetNxForStack will be expired. Instead, If BIT4 of PcdDxeNxMemoryProtectionPolicy is set, the DxeIpl will set NX bit in page table entries mapping the stack memory. Jian J Wang (5): MdeModulePkg/DxeIplPeim: expire the use of PcdSetNxForStack OvmfPkg/PlatformPei: expire the use of PcdSetNxForStack OvmfPkg: expire the use of PcdSetNxForStack ArmVirtPkg/ArmVirt.dsc.inc: expire the use of PcdSetNxForStack MdeModulePkg: expire PcdSetNxForStack ArmVirtPkg/ArmVirt.dsc.inc | 5 ----- MdeModulePkg/Core/DxeIplPeim/Arm/DxeLoadFunc.c | 6 +++++- MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 2 +- MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c | 3 ++- MdeModulePkg/Core/DxeIplPeim/X64/DxeLoadFunc.c | 2 +- MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.c | 14 +++++++++++--- MdeModulePkg/MdeModulePkg.dec | 10 +--------- MdeModulePkg/MdeModulePkg.uni | 10 +--------- OvmfPkg/OvmfPkgIa32.dsc | 1 - OvmfPkg/OvmfPkgIa32X64.dsc | 1 - OvmfPkg/OvmfPkgX64.dsc | 1 - OvmfPkg/PlatformPei/Platform.c | 1 - OvmfPkg/PlatformPei/PlatformPei.inf | 1 - 13 files changed, 22 insertions(+), 35 deletions(-) -- 2.16.2.windows.1 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
