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GET /api/1.2/patches/2221381/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2221381,
    "url": "http://patchwork.ozlabs.org/api/1.2/patches/2221381/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260409104756.465294-3-john.levon@nutanix.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20260409104756.465294-3-john.levon@nutanix.com>",
    "list_archive_url": null,
    "date": "2026-04-09T10:47:55",
    "name": "[2/3] vfio-user: correct protocol for DMA reads/writes",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "534ffbc0376533933612a64511428bbb50ce3ca1",
    "submitter": {
        "id": 80631,
        "url": "http://patchwork.ozlabs.org/api/1.2/people/80631/?format=api",
        "name": "John Levon",
        "email": "john.levon@nutanix.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260409104756.465294-3-john.levon@nutanix.com/mbox/",
    "series": [
        {
            "id": 499273,
            "url": "http://patchwork.ozlabs.org/api/1.2/series/499273/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499273",
            "date": "2026-04-09T10:47:53",
            "name": "vfio-user fixes",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/499273/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2221381/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2221381/checks/",
    "tags": {},
    "related": [],
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        "From": "John Levon <john.levon@nutanix.com>",
        "To": "qemu-devel@nongnu.org",
        "Cc": "Thanos Makatos <thanos.makatos@nutanix.com>,\n Pierrick Bouvier <pierrick.bouvier@linaro.org>, =?utf-8?q?C=C3=A9dric_Le_Go?=\n\t=?utf-8?q?ater?= <clg@redhat.com>, John Levon <john.levon@nutanix.com>,\n Patrick Mooney <patrick@matx.com>",
        "Subject": "[PATCH 2/3] vfio-user: correct protocol for DMA reads/writes",
        "Date": "Thu,  9 Apr 2026 11:47:55 +0100",
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    },
    "content": "The \"count\" parameter in the DMA write reply should be 8 bytes in size.\n\nReported-by: Patrick Mooney <patrick@matx.com>\nSigned-off-by: John Levon <john.levon@nutanix.com>\n---\n docs/interop/vfio-user.rst | 2 +-\n hw/vfio-user/protocol.h    | 2 +-\n 2 files changed, 2 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/docs/interop/vfio-user.rst b/docs/interop/vfio-user.rst\nindex 303fc13d6e..d4766487ea 100644\n--- a/docs/interop/vfio-user.rst\n+++ b/docs/interop/vfio-user.rst\n@@ -1463,7 +1463,7 @@ Reply\n +=========+========+==========+\n | address | 0      | 8        |\n +---------+--------+----------+\n-| count   | 8      | 4        |\n+| count   | 8      | 8        |\n +---------+--------+----------+\n \n * *address* is the client DMA memory address being accessed.\ndiff --git a/hw/vfio-user/protocol.h b/hw/vfio-user/protocol.h\nindex 2a0c31e7c5..c478d1353f 100644\n--- a/hw/vfio-user/protocol.h\n+++ b/hw/vfio-user/protocol.h\n@@ -210,7 +210,7 @@ typedef struct {\n typedef struct {\n     VFIOUserHdr hdr;\n     uint64_t offset;\n-    uint32_t count;\n+    uint64_t count;\n     char data[];\n } VFIOUserDMARW;\n \n",
    "prefixes": [
        "2/3"
    ]
}