mirror of https://github.com/acidanthera/audk.git
2ecd829972
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1193 This commit will add a new BaseLib API AsmLfence(). This API will perform a serializing operation on all load-from-memory instructions that were issued prior to the call of this function. Please note that this API is only available on IA-32 and x64. The purpose of adding this API is to mitigate of the [CVE-2017-5753] Bounds Check Bypass issue when untrusted data are being processed within SMM. More details can be referred at the 'Bounds check bypass mitigation' section at the below link: https://software.intel.com/security-software-guidance/insights/host-firmware-speculative-execution-side-channel-mitigation Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Leif Lindholm <leif.lindholm@linaro.org> Cc: Michael D Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com> |
||
|---|---|---|
| .. | ||
| AArch64 | ||
| Arm | ||
| Ebc | ||
| Ia32 | ||
| X64 | ||
| ARShiftU64.c | ||
| BaseLib.inf | ||
| BaseLib.uni | ||
| BaseLibInternals.h | ||
| BitField.c | ||
| CheckSum.c | ||
| ChkStkGcc.c | ||
| Cpu.c | ||
| CpuDeadLoop.c | ||
| DivS64x64Remainder.c | ||
| DivU64x32.c | ||
| DivU64x32Remainder.c | ||
| DivU64x64Remainder.c | ||
| FilePaths.c | ||
| GetPowerOfTwo32.c | ||
| GetPowerOfTwo64.c | ||
| HighBitSet32.c | ||
| HighBitSet64.c | ||
| LRotU32.c | ||
| LRotU64.c | ||
| LShiftU64.c | ||
| LinkedList.c | ||
| LongJump.c | ||
| LowBitSet32.c | ||
| LowBitSet64.c | ||
| Math64.c | ||
| ModU64x32.c | ||
| MultS64x64.c | ||
| MultU64x32.c | ||
| MultU64x64.c | ||
| RRotU32.c | ||
| RRotU64.c | ||
| RShiftU64.c | ||
| SafeString.c | ||
| SetJump.c | ||
| String.c | ||
| SwapBytes16.c | ||
| SwapBytes32.c | ||
| SwapBytes64.c | ||
| SwitchStack.c | ||
| Unaligned.c | ||
| X86DisablePaging32.c | ||
| X86DisablePaging64.c | ||
| X86EnablePaging32.c | ||
| X86EnablePaging64.c | ||
| X86FxRestore.c | ||
| X86FxSave.c | ||
| X86GetInterruptState.c | ||
| X86MemoryFence.c | ||
| X86Msr.c | ||
| X86PatchInstruction.c | ||
| X86RdRand.c | ||
| X86ReadGdtr.c | ||
| X86ReadIdtr.c | ||
| X86Thunk.c | ||
| X86WriteGdtr.c | ||
| X86WriteIdtr.c | ||