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GET /api/patches/2227038/?format=api
{ "id": 2227038, "url": "http://patchwork.ozlabs.org/api/patches/2227038/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260423051804.362095-10-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": "<20260423051804.362095-10-jamin_lin@aspeedtech.com>", "list_archive_url": null, "date": "2026-04-23T05:18:16", "name": "[v4,09/17] hw/usb/hcd-ehci: Add property to advertise 64-bit addressing capability", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "56cf93ac9c0c41c8484476072e9714b8c45e33cb", "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/20260423051804.362095-10-jamin_lin@aspeedtech.com/mbox/", "series": [ { "id": 501145, "url": "http://patchwork.ozlabs.org/api/series/501145/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501145", "date": "2026-04-23T05:18:08", "name": "hw/usb/ehci: Add 64-bit descriptor addressing support", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/501145/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227038/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227038/checks/", "tags": {}, "related": [], "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 (2048-bit key;\n unprotected) header.d=aspeedtech.com header.i=@aspeedtech.com\n header.a=rsa-sha256 header.s=selector1 header.b=f336Q2vI;\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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Thu, 23 Apr 2026 01:18:29 -0400", "from TYPPR06MB8206.apcprd06.prod.outlook.com (2603:1096:405:383::19)\n by KUXPR06MB8534.apcprd06.prod.outlook.com (2603:1096:d10:9d::22)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9846.16; Thu, 23 Apr\n 2026 05:18:16 +0000", "from TYPPR06MB8206.apcprd06.prod.outlook.com\n ([fe80::e659:1ead:77cb:f6d3]) by TYPPR06MB8206.apcprd06.prod.outlook.com\n ([fe80::e659:1ead:77cb:f6d3%3]) with mapi id 15.20.9846.021; Thu, 23 Apr 2026\n 05:18:16 +0000" ], "ARC-Seal": "i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none;\n b=xQsGJtzp6JfL4EZfyf80agdBG67hFhKih/UKXJIjGgzrNbEYtZWf4/PAg1xWfU5NwSK0Nqjj++koBcs/ymObNK+0TAjawvuHY0gqlegY7FK+Je1+JyIioU2ZktTH8fZbOYlo7HvQluPId0vwUuINHfoYyRdyFvFXg6Dq7aZdrpJK0EWYvZEDT1Fi1Mks4DMn0F/kh68XjETcmGpvwNhWytFJe26/cW96Hy2NnP9hhaTnFqH4t/r/5NAYTh0EITpqn4RynCmB+LrkyVACCNg2wUVUUQnYSLRQTP787RRSZ6SW2LYB2lgYBZ6FgaFsjDL22JqXJvtzLec4a0kZwxjXyg==", "ARC-Message-Signature": "i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;\n s=arcselector10001;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1;\n bh=RXoR4UdLkGjcJ3WfUu+Cs03fPTbZxQW3bPIQfbCHMKc=;\n b=gQmlKPWr1HIevPfUDP78RpYkVIQYEylVvvlgHQ5XHKQ9EfD1O2GeQV6ot3KivZ7Kh4IQbFAXLHbPgR6QdTulSZmzNY3J7CLLtOsT4HaegbpR8v1rIN4uLk26RokgASBD/K4jjmjuZPJCbX4WgXWwxSj4ryvmd1/c3Wrw7PcXH5XjsXqDEUJUT1x4zqz4jPsIo0ACrFSKnd2+/g9lJQMLivbzc3L/RRfNxr0ZzsUrht3v+zg+uJ1HAIV58nRMd1umrFxdzozs7cppSmp6SDAmU12eAn2tp4nug0nFz+mkZjWVejgK1SFKJSpNq1qwt1y3KtVvpdEqMyjUEg+dIFhv0w==", "ARC-Authentication-Results": "i=1; mx.microsoft.com 1; spf=pass\n smtp.mailfrom=aspeedtech.com; dmarc=pass action=none\n header.from=aspeedtech.com; dkim=pass header.d=aspeedtech.com; arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=aspeedtech.com;\n s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=RXoR4UdLkGjcJ3WfUu+Cs03fPTbZxQW3bPIQfbCHMKc=;\n b=f336Q2vIr7EJNt7RN/conm8fWQoYn8Eyko1gLtoEzgLoe+xooDutp0NMwyxzg/RgLsysTNGNzGeWwoYFiAT0TXKyFCk+rmTmYLlMbxDjAkkjjWoaSxOlPoYV41bbpW7SJNbuTO1qJ/4JQ43SdLUq8ruo1ss3Phsbdn8fhpnmpLGxGWBXQ8bNCWfUjvxRa/9g/6ih086YrRPF5KmroLF9q6xN5Jo3mIU/Ki0FaQTpGHPYKfVBVE9diTimgvknqhG9HY4jDy40sRioCSQISfWQuq77iJpeWV6082iIeXcg3ZAPnHPNqfuBbCoM1B1cnDYF0jGOmto2swKQ2uKz8KBFiA==", "From": "Jamin Lin <jamin_lin@aspeedtech.com>", "To": "\"philmd@linaro.org\" <philmd@linaro.org>,\n \"peterx@redhat.com\" <peterx@redhat.com>,\n =?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 Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,\n Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>,\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>,\n \"farosas@suse.de\" <farosas@suse.de>,\n =?iso-8859-1?q?C=E9dric_Le_Goater?= <clg@redhat.com>", "Subject": "[PATCH v4 09/17] hw/usb/hcd-ehci: Add property to advertise 64-bit\n addressing capability", "Thread-Topic": "[PATCH v4 09/17] hw/usb/hcd-ehci: Add property to advertise\n 64-bit addressing capability", "Thread-Index": "AQHc0uCXaAHzE37+KEGxtHY8z15QVA==", "Date": "Thu, 23 Apr 2026 05:18:16 +0000", "Message-ID": "<20260423051804.362095-10-jamin_lin@aspeedtech.com>", "References": "<20260423051804.362095-1-jamin_lin@aspeedtech.com>", "In-Reply-To": "<20260423051804.362095-1-jamin_lin@aspeedtech.com>", "Accept-Language": "zh-TW, en-US", "Content-Language": "en-US", "X-MS-Has-Attach": "", "X-MS-TNEF-Correlator": "", "authentication-results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=aspeedtech.com header.i=@aspeedtech.com\n header.a=rsa-sha256 header.s=selector1 header.b=f336Q2vI;\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=\"iso-8859-1\"", "Content-Transfer-Encoding": "quoted-printable", "MIME-Version": "1.0", "X-Exchange-RoutingPolicyChecked": "\n VZYlXnGHgREI8zvE+JzJK+Ob3wZM8C86zRynFy7v3RPwmUbjkHxcSQ6FhiwYmUvzyp5Z4hKVswfWUX9Omjuut6Sk4ih7VzYyKhPVJ35LYR/Rv2xPxwSHyrLFe7DUmIc6k2Uzf1L/QrlK9xwIB4U4dvdqFdemI3WOb4Z851YyE431oQK97qBV0YDo8M4pkVsFBmpm0ZejzEj7H0wuHzxBlMDF7OzHM+h4n/DkZbSbfTF/BPa5aVCvHOjq70vNOA0U2yS9IxUkiSbLGxLNgdz8z1U5NbYJHWlSL2k4J0e2j//cGk4vaX6OAi2YwvaoDV+jyTRTg8crrQ+Ga7ZiNKYqIQ==", "X-OriginatorOrg": "aspeedtech.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-AuthSource": "TYPPR06MB8206.apcprd06.prod.outlook.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n b4130c4b-b35d-4c6c-5c58-08dea0f7b9c7", "X-MS-Exchange-CrossTenant-originalarrivaltime": "23 Apr 2026 05:18:16.7150 (UTC)", "X-MS-Exchange-CrossTenant-fromentityheader": "Hosted", "X-MS-Exchange-CrossTenant-id": "43d4aa98-e35b-4575-8939-080e90d5a249", "X-MS-Exchange-CrossTenant-mailboxtype": "HOSTED", "X-MS-Exchange-CrossTenant-userprincipalname": "\n bJzCKXIenlurktva3H0Vvyf34HXFlEkOQtVkIO7lZvgWXpsLX8nK1im6JzHOPKZu9beskPvlYngCs/1sFQhKrmGHqMBooLeBqOTf3IC0dVk=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "KUXPR06MB8534", "Received-SPF": "pass client-ip=2a01:111:f403:c405::7;\n envelope-from=jamin_lin@aspeedtech.com;\n helo=TYDPR03CU002.outbound.protection.outlook.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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001,\n 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": "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\nThe EHCI CTRLDSSEGMENT register provides the upper 32 bits [63:32] used to\nform 64-bit addresses for EHCI control data structures. Per EHCI 1.0\nspec section 2.3.5, when the HCCPARAMS 64-bit Addressing Capability bit\nis zero, CTRLDSSEGMENT is not used: software cannot write it and reads\nmust return zero.\n\nAdd a capability check in the operational register write handler and\nreject guest writes to CTRLDSSEGMENT when 64-bit addressing is\nnot enabled.\n\nSigned-off-by: Jamin Lin <jamin_lin@aspeedtech.com>\nReviewed-by: Cédric Le Goater <clg@redhat.com>\nReviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>\n---\n hw/usb/hcd-ehci.h | 5 ++++-\n hw/usb/hcd-ehci.c | 14 +++++++++++++-\n 2 files changed, 17 insertions(+), 2 deletions(-)", "diff": "diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h\nindex 3acbddfc5c..f1f2fde578 100644\n--- a/hw/usb/hcd-ehci.h\n+++ b/hw/usb/hcd-ehci.h\n@@ -257,6 +257,7 @@ struct EHCIState {\n /* properties */\n uint32_t maxframes;\n bool migrate_fetch_addr_64bit;\n+ bool caps_64bit_addr;\n \n /*\n * EHCI spec version 1.0 Section 2.3\n@@ -313,7 +314,9 @@ struct EHCIState {\n #define DEFINE_EHCI_COMMON_PROPERTIES(_state) \\\n DEFINE_PROP_UINT32(\"maxframes\", _state, ehci.maxframes, 128), \\\n DEFINE_PROP_BOOL(\"x-migrate-fetch-addr-64bit\", _state, \\\n- ehci.migrate_fetch_addr_64bit, true)\n+ ehci.migrate_fetch_addr_64bit, true), \\\n+ DEFINE_PROP_BOOL(\"caps-64bit-addr\", _state, \\\n+ ehci.caps_64bit_addr, false)\n \n extern const VMStateDescription vmstate_ehci;\n \ndiff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c\nindex 0c8bdb48ad..b23ff92e12 100644\n--- a/hw/usb/hcd-ehci.c\n+++ b/hw/usb/hcd-ehci.c\n@@ -1109,6 +1109,15 @@ static void ehci_opreg_write(void *ptr, hwaddr addr,\n }\n break;\n \n+ case CTRLDSSEGMENT:\n+ if (!s->caps_64bit_addr) {\n+ qemu_log_mask(LOG_GUEST_ERROR,\n+ \"ehci: write to CTRLDSSEGMENT while \"\n+ \" 64-bit addressing capability is disabled\\n\");\n+ return;\n+ }\n+ break;\n+\n case ASYNCLISTADDR:\n if (ehci_async_enabled(s)) {\n qemu_log_mask(LOG_GUEST_ERROR,\n@@ -2554,6 +2563,9 @@ 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@@ -2613,7 +2625,7 @@ 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": [ "v4", "09/17" ] }