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6556224e1f
Our poor man's implementation of EnterS3WithImmediateWake () currently sets a high TPL level to disable interrupts, and simply calls the PEI entrypoint again after disabling the MMU. Unfortunately, this is not sufficient: DMA capable devices such as network controllers or USB controllers may still be enabled and writing to memory, e.g., in response to incoming network packets. So instead, do the full ExitBootServices() dance: allocate space and get the memory map, call ExitBootServices(), and in case it fails, get the memory map again and call ExitBootServices() again. This ensures that all cleanup related to DMA capable devices is performed before doing the warm reset. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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.