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This prevents operators\nfrom using Cyborg to manage PCI accelerator VFs that must remain bound\nto a VFIO variant driver instead of being rebound by libvirt during\nguest spawn and teardown.\n\nThis spec proposes a new Cyborg API microversion that adds a\n``managed`` boolean to PCI ARQ ``attach_handle_info`` responses. It\nkeeps the implementation scoped to the generic PCI driver while\npreserving a generic Nova contract for all PCI attach handles. The spec\nalso describes the companion Nova libvirt change and the required SDK\nand python-cyborgclient updates.\n\nAPIImpact\nImplements: blueprint support-vfio-variant-driver-managed-mode\nAssisted-By: pi gpt-5.5\nChange-Id: I6bd67fdf57def352bcc94f6a28354f06ecc09241\nSigned-off-by: Sean Mooney \u003cwork@seanmooney.info\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/cyborg-specs/commit/d334a318c2d03e6a203eb18de6da0614177025d3"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/cyborg-specs/commit/d334a318c2d03e6a203eb18de6da0614177025d3"}]},"branch":"refs/heads/master"},"981405a8938ed786feaaf63ea1955aa7174a367b":{"kind":"REWORK","_number":3,"created":"2026-06-04 10:43:09.000000000","uploader":{"_account_id":11604,"name":"sean mooney","email":"smooney@redhat.com","username":"sean-k-mooney"},"ref":"refs/changes/03/989003/3","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/cyborg-specs","ref":"refs/changes/03/989003/3","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/cyborg-specs refs/changes/03/989003/3 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/cyborg-specs refs/changes/03/989003/3 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/cyborg-specs refs/changes/03/989003/3 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/cyborg-specs refs/changes/03/989003/3"}}},"commit":{"parents":[{"commit":"abe236e8904a65a3d07acab1701878ae56013f01","subject":"Merge \"Add 2026.2 spec structure\"","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/cyborg-specs/commit/abe236e8904a65a3d07acab1701878ae56013f01"}]}],"author":{"name":"Sean Mooney","email":"work@seanmooney.info","date":"2026-05-18 16:18:31.000000000","tz":60},"committer":{"name":"Sean Mooney","email":"work@seanmooney.info","date":"2026-06-04 10:42:25.000000000","tz":60},"subject":"Add VFIO variant driver managed mode spec","message":"Add VFIO variant driver managed mode spec\n\nCyborg-managed PCI accelerators currently do not expose libvirt\nhostdev managed mode information to Nova. This prevents operators\nfrom using Cyborg to manage PCI accelerator VFs that must remain bound\nto a VFIO variant driver instead of being rebound by libvirt during\nguest spawn and teardown.\n\nThis spec proposes a new Cyborg API microversion that adds a\n``managed`` boolean to PCI ARQ ``attach_handle_info`` responses. It\nkeeps the implementation scoped to the generic PCI driver while\npreserving a generic Nova contract for all PCI attach handles. The spec\nalso describes the companion Nova libvirt change and the required SDK\nand python-cyborgclient updates.\n\nAPIImpact\nImplements: blueprint support-vfio-variant-driver-managed-mode\nAssisted-By: pi gpt-5.5\nChange-Id: I6bd67fdf57def352bcc94f6a28354f06ecc09241\nSigned-off-by: Sean Mooney \u003cwork@seanmooney.info\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/cyborg-specs/commit/981405a8938ed786feaaf63ea1955aa7174a367b"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/cyborg-specs/commit/981405a8938ed786feaaf63ea1955aa7174a367b"}]},"branch":"refs/heads/master"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"CLOSED","labels":[{"label":"Verified","status":"MAY","applied_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}},{"label":"Code-Review","status":"MAY","applied_by":{"_account_id":11604,"name":"sean mooney","email":"smooney@redhat.com","username":"sean-k-mooney"}},{"label":"Workflow","status":"MAY","applied_by":{"_account_id":11604,"name":"sean mooney","email":"smooney@redhat.com","username":"sean-k-mooney"}}]}],"submit_requirements":[{"name":"Verified","description":"Verified in gate by CI","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Verified\u003dMAX AND -label:Verified\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Verified\u003dMAX"],"failing_atoms":["label:Verified\u003dMIN"],"atom_explanations":{"label:Verified\u003dMAX":"","label:Verified\u003dMIN":""}}},{"name":"Code-Review","description":"Code reviewed by core reviewer","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Code-Review\u003dMAX"],"failing_atoms":["label:Code-Review\u003dMIN"],"atom_explanations":{"label:Code-Review\u003dMAX":"","label:Code-Review\u003dMIN":""}}},{"name":"Workflow","description":"Approved for gate by core reviewer","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Workflow\u003dMAX AND -label:Workflow\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Workflow\u003dMAX"],"failing_atoms":["label:Workflow\u003dMIN"],"atom_explanations":{"label:Workflow\u003dMAX":"","label:Workflow\u003dMIN":""}}}]}