8ddd12e53f
In one of the following patches, we'll change OvmfPkg/IoMmuDxe so that it unmaps all existent bus master operations (CommonBuffer, Read, Write) at ExitBootServices(), strictly after the individual device drivers abort pending DMA on the devices they manage, in their own ExitBootServices() notification functions. In preparation, remove the explicit VIRTIO_DEVICE_PROTOCOL.UnmapSharedBuffer() calls from VirtioGpuExitBoot(), originally added in commit9bc5026c19("OvmfPkg/VirtioGpuDxe: map VRING for bus master common buffer operation", 2017-08-26) and commitf10ae92366("OvmfPkg/VirtioGpuDxe: map backing store to bus master device address", 2017-08-26). Add a DEBUG message so we can observe the ordering between VirtioGpuExitBoot() and the upcoming cleanup of mappings in OvmfPkg/IoMmuDxe. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Brijesh Singh <brijesh.singh@amd.com> Tested-by: Brijesh Singh <brijesh.singh@amd.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.