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Update a patch.

GET /api/patches/2222990/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2222990,
    "url": "http://patchwork.ozlabs.org/api/patches/2222990/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414080025.3005916-8-jamin_lin@aspeedtech.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": "<20260414080025.3005916-8-jamin_lin@aspeedtech.com>",
    "list_archive_url": null,
    "date": "2026-04-14T08:00:34",
    "name": "[v2,07/17] hw/usb/hcd-ehci: Add property to advertise 64-bit addressing capability",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "5ce9cbf96f1a1f7f57ed098c001bd04ca6dbd67e",
    "submitter": {
        "id": 81768,
        "url": "http://patchwork.ozlabs.org/api/people/81768/?format=api",
        "name": "Jamin Lin",
        "email": "jamin_lin@aspeedtech.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414080025.3005916-8-jamin_lin@aspeedtech.com/mbox/",
    "series": [
        {
            "id": 499795,
            "url": "http://patchwork.ozlabs.org/api/series/499795/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499795",
            "date": "2026-04-14T08:00:26",
            "name": "hw/usb/ehci: Add 64-bit descriptor addressing support",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/499795/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2222990/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2222990/checks/",
    "tags": {},
    "related": [],
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        "From": "Jamin Lin <jamin_lin@aspeedtech.com>",
        "To": "=?iso-8859-1?q?C=E9dric_Le_Goater?= <clg@kaod.org>,\n Peter Maydell <peter.maydell@linaro.org>,\n Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>,\n Kane Chen <kane_chen@aspeedtech.com>,\n Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>,\n \"open list:ASPEED BMCs\" <qemu-arm@nongnu.org>,\n \"open list:All patches CC here\" <qemu-devel@nongnu.org>",
        "CC": "Jamin Lin <jamin_lin@aspeedtech.com>, Troy Lee <troy_lee@aspeedtech.com>,\n  \"flwu@google.com\" <flwu@google.com>,\n \"nabihestefan@google.com\" <nabihestefan@google.com>, =?iso-8859-1?q?C=E9dri?=\n\t=?iso-8859-1?q?c_Le_Goater?= <clg@redhat.com>",
        "Subject": "[PATCH v2 07/17] hw/usb/hcd-ehci: Add property to advertise 64-bit\n addressing capability",
        "Thread-Topic": "[PATCH v2 07/17] hw/usb/hcd-ehci: Add property to advertise\n 64-bit addressing capability",
        "Thread-Index": "AQHcy+TFdtAGW3rvZUye0YiGqef7VQ==",
        "Date": "Tue, 14 Apr 2026 08:00:34 +0000",
        "Message-ID": "<20260414080025.3005916-8-jamin_lin@aspeedtech.com>",
        "References": "<20260414080025.3005916-1-jamin_lin@aspeedtech.com>",
        "In-Reply-To": "<20260414080025.3005916-1-jamin_lin@aspeedtech.com>",
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        "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"
    },
    "content": "Introduce a new boolean property, \"caps-64bit-addr\", to control\nHCCPARAMS[0] (64-bit Addressing Capability).\n\nWhen enabled, the EHCI controller advertises support for 64-bit\naddress memory pointers as defined in the EHCI specification\n(Table 2-7, HCCPARAMS). This allows software to use the 64-bit\ndata structure formats described in Appendix B.\n\nWhen disabled (default), the controller reports 32-bit addressing\ncapability and uses the standard 32-bit data structures.\n\nSigned-off-by: Jamin Lin <jamin_lin@aspeedtech.com>\nReviewed-by: Cédric Le Goater <clg@redhat.com>\n---\n hw/usb/hcd-ehci.h        | 1 +\n hw/usb/hcd-ehci-pci.c    | 2 ++\n hw/usb/hcd-ehci-sysbus.c | 2 ++\n hw/usb/hcd-ehci.c        | 5 ++++-\n 4 files changed, 9 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h\nindex 24eea9d23b..fe4c508c32 100644\n--- a/hw/usb/hcd-ehci.h\n+++ b/hw/usb/hcd-ehci.h\n@@ -256,6 +256,7 @@ struct EHCIState {\n \n     /* properties */\n     uint32_t maxframes;\n+    bool caps_64bit_addr;\n \n     /*\n      *  EHCI spec version 1.0 Section 2.3\ndiff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-ehci-pci.c\nindex 9febcc1031..2ea8549db9 100644\n--- a/hw/usb/hcd-ehci-pci.c\n+++ b/hw/usb/hcd-ehci-pci.c\n@@ -137,6 +137,8 @@ static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,\n \n static const Property ehci_pci_properties[] = {\n     DEFINE_PROP_UINT32(\"maxframes\", EHCIPCIState, ehci.maxframes, 128),\n+    DEFINE_PROP_BOOL(\"caps-64bit-addr\", EHCIPCIState, ehci.caps_64bit_addr,\n+                     false),\n };\n \n static const VMStateDescription vmstate_ehci_pci = {\ndiff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c\nindex b31032bbf3..61215e9f3d 100644\n--- a/hw/usb/hcd-ehci-sysbus.c\n+++ b/hw/usb/hcd-ehci-sysbus.c\n@@ -34,6 +34,8 @@ static const Property ehci_sysbus_properties[] = {\n     DEFINE_PROP_UINT32(\"maxframes\", EHCISysBusState, ehci.maxframes, 128),\n     DEFINE_PROP_BOOL(\"companion-enable\", EHCISysBusState, ehci.companion_enable,\n                      false),\n+    DEFINE_PROP_BOOL(\"caps-64bit-addr\", EHCISysBusState, ehci.caps_64bit_addr,\n+                     false),\n };\n \n static void usb_ehci_sysbus_realize(DeviceState *dev, Error **errp)\ndiff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c\nindex 315e8813f5..e3bff8e518 100644\n--- a/hw/usb/hcd-ehci.c\n+++ b/hw/usb/hcd-ehci.c\n@@ -2532,6 +2532,9 @@ void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp)\n                    s->maxframes);\n         return;\n     }\n+    if (s->caps_64bit_addr) {\n+        s->caps[0x08] |= BIT(0);\n+    }\n \n     memory_region_add_subregion(&s->mem, s->capsbase, &s->mem_caps);\n     memory_region_add_subregion(&s->mem, s->opregbase, &s->mem_opreg);\n@@ -2591,7 +2594,7 @@ void usb_ehci_init(EHCIState *s, DeviceState *dev)\n     s->caps[0x05] = 0x00;        /* No companion ports at present */\n     s->caps[0x06] = 0x00;\n     s->caps[0x07] = 0x00;\n-    s->caps[0x08] = 0x80;        /* We can cache whole frame, no 64-bit */\n+    s->caps[0x08] = 0x80;        /* We can cache whole frame */\n     s->caps[0x0a] = 0x00;\n     s->caps[0x0b] = 0x00;\n \n",
    "prefixes": [
        "v2",
        "07/17"
    ]
}