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b72f487372
Current IsInSmm() method makes use of gEfiSmmBase2ProtocolGuid.InSmm() to check if current processor is in SMM mode or not. But this is not correct because gEfiSmmBase2ProtocolGuid.InSmm() can only detect if the caller is running in SMRAM or from SMM driver. It cannot guarantee if the caller is running in SMM mode. Because SMM mode will load its own page table, adding an extra check of saved DXE page table base address against current CR3 register value can help to get the correct answer for sure (in SMM mode or not in SMM mode). There's indiscriminate uses of Context.X64 and Context.Ia32 in code which is not a good coding practice and will cause potential issue. In addition, the related structure type definition is not packed and has also potential issue. This will not be covered by this patch but be tracked by a bug below. https://bugzilla.tianocore.org/show_bug.cgi?id=1039 This is an issue caused by check-in at 2a1408d1d739ead00c96397549be7a9fc53c9c6e Cc: Eric Dong <eric.dong@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
EDK II Project
A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.
Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1
The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:
- AppPkg/Applications/Python/Python-2.7.2/Tools/pybench
- AppPkg/Applications/Python/Python-2.7.2
- AppPkg/Applications/Python/Python-2.7.10
- BaseTools/Source/C/BrotliCompress
- MdeModulePkg/Library/BrotliCustomDecompressLib
- OvmfPkg
- CryptoPkg/Library/OpensslLib/openssl
The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.