Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

Summary

To enable optimal DMA P2P support, AMD recommends enabling the following kernel configuration options:

CONFIG_PCI_P2PDMA
Enables PCIe P2P DMA infrastructure in the kernel.

CONFIG_DMABUF_MOVE_NOTIFY
Allows buffer movement notification required for certain peer-to-peer operations.

CONFIG_HSA_AMD_P2P
Enables HSA (Heterogeneous System Architecture) support for AMD P2P, which is critical for ROCm.

Reference: AMD ROCm IOMMU Documentation

Change Log

• Enable CONFIG_PCI_P2PDMA CONFIG_HSA_AMD CONFIG_HSA_AMD_P2P and dependency KConfigs

Does this affect the toolchain?

YES

Associated issues

• https://microsoft.visualstudio.com/OS/_workitems/edit/57987918

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-YYYY-XXXX

Test Methodology

• Pipeline build id: Local validation.