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{ "id": 2216579, "url": "http://patchwork.ozlabs.org/api/covers/2216579/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260326210532.379027-1-peterx@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260326210532.379027-1-peterx@redhat.com>", "list_archive_url": null, "date": "2026-03-26T21:05:21", "name": "[RFC,v2,00/11] vmstate: Implement VMS_ARRAY_OF_POINTER_AUTO_ALLOC", "submitter": { "id": 67717, "url": "http://patchwork.ozlabs.org/api/people/67717/?format=api", "name": "Peter Xu", "email": "peterx@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260326210532.379027-1-peterx@redhat.com/mbox/", "series": [ { "id": 497651, "url": "http://patchwork.ozlabs.org/api/series/497651/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497651", "date": "2026-03-26T21:05:22", "name": "vmstate: Implement VMS_ARRAY_OF_POINTER_AUTO_ALLOC", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/497651/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2216579/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=Hdz6AxMd;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=Nh+gIDqH;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.129.124; envelope-from=peterx@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "CI: https://gitlab.com/peterx/qemu/-/pipelines/2411892214\n (1 warning, 1 error but looks irrelevant)\n\nRFCv1->RFCv2:\n- Collected tags, dropped on ones that has major changes\n- Replace word 'dump' with 'save' all across the series [Fabiano]\n- Patch 4\n - Replaced it with a new patch to make analyze-migration.py work\n- Patch 6\n - Move the error_prepend() into the new helper [Fabiano]\n- Patch 7\n - Fix stale comments in vmsd_create_ptr_marker_field() [Fabiano]\n - Recover is_null variable and around [Fabiano]\n - squashed analyze-migration.py changes to make it work\n- Patch 8\n - Fix vmstate_check() [Fabiano]\n - Fix comments / English [Fabiano]\n - Introduced vmstate_load_next(), hide ptr marker details, avoid using\n (void **) casts, etc. [Fabiano]\n- Added one more patch from Fabiano's RFC series\n\nThis is an RFCv2 series. It is based on Fabiano's migration-staging\nbranch. I've pushed this tree here for easier reference:\n\nhttps://gitlab.com/peterx/qemu/-/tree/vmstate-array-null\n\nThis series implements a new vmstate flag that allows real dynamic array of\npointers to be migrated, so that QEMU vmstate core will be able to identify\nNULL and non-NULL pointers pointing to any kind of VMSD (or base types),\nthen properly allocate memory for them on dest QEMU.\n\nThe first planned user of such is Alexander's NVMe migration series here:\n\nhttps://lore.kernel.org/r/20260317102708.126725-1-alexander@mihalicyn.com\n\nThis is another alternative to solve this problem.\n\nI tested analyze-migration.py with this version and it works with an idle\ndump from the nvme series (after I rebase).\n\nThanks,\n\nAlexander Mikhalitsyn (1):\n tests/unit/test-vmstate: add tests for VMS_ARRAY_OF_POINTER_AUTO_ALLOC\n\nFabiano Rosas (1):\n vmstate: Stop checking size for nullptr compression\n\nPeter Xu (9):\n vmstate: Pass in struct itself for VMSTATE_ARRAY_OF_POINTER\n vmstate: Pass in struct itself for VMSTATE_VARRAY_OF_POINTER_UINT32\n vmstate: Do not set size for VMS_ARRAY_OF_POINTER\n vmstate: Update max_elems early and check field compressable once\n vmstate: Rename VMS_NULLPTR_MARKER to VMS_MARKER_PTR_NULL\n vmstate: Introduce vmstate_save_field_with_vmdesc()\n vmstate: Allow vmstate_info_nullptr to emit non-NULL markers\n vmstate: Implement load of ptr marker in vmstate core\n vmstate: Implement VMS_ARRAY_OF_POINTER_AUTO_ALLOC\n\n include/hw/intc/riscv_aclint.h | 6 +-\n include/migration/vmstate.h | 88 ++++++++++--\n migration/savevm.c | 28 ++++\n migration/vmstate-types.c | 36 +++--\n migration/vmstate.c | 238 +++++++++++++++++++++++++--------\n tests/unit/test-vmstate.c | 90 ++++++++++++-\n scripts/analyze-migration.py | 22 +--\n 7 files changed, 408 insertions(+), 100 deletions(-)" }