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{ "id": 2218747, "url": "http://patchwork.ozlabs.org/api/covers/2218747/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260401202844.673494-1-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": "<20260401202844.673494-1-peterx@redhat.com>", "list_archive_url": null, "date": "2026-04-01T20:28:33", "name": "[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/20260401202844.673494-1-peterx@redhat.com/mbox/", "series": [ { "id": 498385, "url": "http://patchwork.ozlabs.org/api/series/498385/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=498385", "date": "2026-04-01T20:28:34", "name": "vmstate: Implement VMS_ARRAY_OF_POINTER_AUTO_ALLOC", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498385/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2218747/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=TM2GxuVi;\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=i++rrY7j;\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\"", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.133.124; envelope-from=peterx@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-6", "X-Spam_score": "-0.7", "X-Spam_bar": "/", "X-Spam_report": "(-0.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54,\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=-0.01,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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/2424266591\n (one checkpatch warning, not relevant to this series)\n\nrfcv1: https://lore.kernel.org/r/20260317232332.15209-1-peterx@redhat.com\nrfcv2: https://lore.kernel.org/r/20260326210532.379027-1-peterx@redhat.com\n\nChangelog rfcv2->v1:\n\n- Rebased to latest fabiano's migration-staging branch (bd698d7730)\n- Collected new tags\n- Patch 1\n - Add space between \"_type*\" [Phil]\n- Patch 9\n - Slight refactoring on vmstate_load_next() [Fabiano]\n - I collected Alexander's tested-by even if strictly I shouldn't when the\n patch changed; if test fails, it's me to blame.\n\nThis is v1, I removed RFC as I we should have reached some form of\nconsensus in general. It is based on Fabiano's migration-staging branch.\nI'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 | 247 ++++++++++++++++++++++++++-------\n tests/unit/test-vmstate.c | 90 +++++++++++-\n roms/seabios-hppa | 2 +-\n scripts/analyze-migration.py | 22 +--\n 8 files changed, 418 insertions(+), 101 deletions(-)" }