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3eb69b081c
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1521 We scan the SMM code with ROPgadget. http://shell-storm.org/project/ROPgadget/ https://github.com/JonathanSalwan/ROPgadget/tree/master This tool reports the gadget in SMM driver. This patch enabled CET ShadowStack for X86 SMM. If CET is supported, SMM will enable CET ShadowStack. SMM CET will save the OS CET context at SmmEntry and restore OS CET context at SmmExit. Test: 1) test Intel internal platform (x64 only, CET enabled/disabled) Boot test: CET supported or not supported CPU on CET supported platform CET enabled/disabled PcdCpuSmmCetEnable enabled/disabled Single core/Multiple core PcdCpuSmmStackGuard enabled/disabled PcdCpuSmmProfileEnable enabled/disabled PcdCpuSmmStaticPageTable enabled/disabled CET exception test: #CF generated with PcdCpuSmmStackGuard enabled/disabled. Other exception test: #PF for normal stack overflow #PF for NX protection #PF for RO protection CET env test: Launch SMM in CET enabled/disabled environment (DXE) - no impact to DXE The test case can be found at https://github.com/jyao1/SecurityEx/tree/master/ControlFlowPkg 2) test ovmf (both IA32 and X64 SMM, CET disabled only) test OvmfIa32/Ovmf3264, with -D SMM_REQUIRE. qemu-system-x86_64.exe -machine q35,smm=on -smp 4 -serial file:serial.log -drive if=pflash,format=raw,unit=0,file=OVMF_CODE.fd,readonly=on -drive if=pflash,format=raw,unit=1,file=OVMF_VARS.fd QEMU emulator version 3.1.0 (v3.1.0-11736-g7a30e7adb0-dirty) 3) not tested IA32 CET enabled platform Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Yao Jiewen <jiewen.yao@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com> |
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| .. | ||
| Application/Cpuid | ||
| CpuDxe | ||
| CpuFeatures | ||
| CpuIo2Dxe | ||
| CpuIo2Smm | ||
| CpuIoPei | ||
| CpuMpPei | ||
| CpuS3DataDxe | ||
| Include | ||
| Library | ||
| PiSmmCommunication | ||
| PiSmmCpuDxeSmm | ||
| ResetVector | ||
| SecCore | ||
| Universal/Acpi/S3Resume2Pei | ||
| UefiCpuPkg.dec | ||
| UefiCpuPkg.dsc | ||
| UefiCpuPkg.uni | ||
| UefiCpuPkgExtra.uni | ||