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GET /api/1.2/patches/2224200/?format=api
{ "id": 2224200, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2224200/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260417032837.2664122-17-jamin_lin@aspeedtech.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": "<20260417032837.2664122-17-jamin_lin@aspeedtech.com>", "list_archive_url": null, "date": "2026-04-17T03:28:59", "name": "[v4,16/21] hw/misc/aspeed_scu: Drop noisy unhandled read logs for AST2700 SCU/SCUIO", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "db6b602b68fc07b0039a816fd4923bed90b2654b", "submitter": { "id": 81768, "url": "http://patchwork.ozlabs.org/api/1.2/people/81768/?format=api", "name": "Jamin Lin", "email": "jamin_lin@aspeedtech.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260417032837.2664122-17-jamin_lin@aspeedtech.com/mbox/", "series": [ { "id": 500228, "url": "http://patchwork.ozlabs.org/api/1.2/series/500228/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500228", "date": "2026-04-17T03:28:41", "name": "Add SSP/TSP power control and DRAM remap support for AST2700", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/500228/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224200/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224200/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=jt3EsLC0;\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 a3lIsQ3+cHaI3GgKfVylL0x75e31uWEpOogKEH9V4XZjlNYg0alBOq2QJrDSBTI3KdAqD93RSmpMa51A1xjxzaYii4YDI+yISTZwXudCVaS/MOPvLyOIVfhxNvJztEi1oew7moGztv9guInryfIjRGFldvKG0++9HSuNLxwEvyFZ1I9C0y4hoSacRtuWn9PbTnxd/iEJf0e80v+jcUxKTGPUZhCB2TSGoBIAwYJFVG33k41xIuLYSlL2LuQNUGpOZWDuShmYheHhVtbj2/v/z8jWNqGOzncO4d6V8jZSfOuSHgDlGWgNOyCuPqyElFkHNqSeLmdZBM9VEy0hmMazFQ==", "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 3a2a35cf-4bcc-4b74-4579-08de9c31771b", "X-MS-Exchange-CrossTenant-originalarrivaltime": "17 Apr 2026 03:28:59.8530 (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 DVwHjCVXn7U4Whc9S6bSE91WTUcDIFRTKZ2AwrmGRHP8v8FHLXm4PteEyivbg5hO5xaKJmT7+/cMJ3csAaFRUB24nokte3WKxbuxO7XoRPE=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "KUZPR06MB8076", "Received-SPF": "pass client-ip=2a01:111:f403:c40f::6;\n envelope-from=jamin_lin@aspeedtech.com;\n helo=SEYPR02CU001.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,\n SPF_HELO_PASS=-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": "The AST2700 SCU/SCUIO read handlers currently emit LOG_GUEST_ERROR\nmessages for all registers that are not explicitly handled.\n\nHowever, most SCU registers are simple read-back registers without\nside effects, and do not require explicit handling in the read path.\nReturning the stored register value is sufficient.\n\nEmitting \"Unhandled read\" logs for these cases generates excessive\nand misleading noise during normal guest operation, making it harder\nto spot real issues.\n\nRemove the default unhandled read logging from the SCU and SCUIO read\nhandlers to reduce log noise and align with common QEMU device model\nbehavior for passive registers.\n\nSigned-off-by: Jamin Lin <jamin_lin@aspeedtech.com>\n---\n hw/misc/aspeed_scu.c | 14 --------------\n 1 file changed, 14 deletions(-)", "diff": "diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c\nindex 251c23def0..362733ba11 100644\n--- a/hw/misc/aspeed_scu.c\n+++ b/hw/misc/aspeed_scu.c\n@@ -932,13 +932,6 @@ static uint64_t aspeed_ast2700_scu_read(void *opaque, hwaddr offset,\n return 0;\n }\n \n- switch (reg) {\n- default:\n- qemu_log_mask(LOG_GUEST_ERROR,\n- \"%s: Unhandled read at offset 0x%\" HWADDR_PRIx \"\\n\",\n- __func__, offset);\n- }\n-\n trace_aspeed_ast2700_scu_read(offset, size, s->regs[reg]);\n return s->regs[reg];\n }\n@@ -1264,13 +1257,6 @@ static uint64_t aspeed_ast2700_scuio_read(void *opaque, hwaddr offset,\n return 0;\n }\n \n- switch (reg) {\n- default:\n- qemu_log_mask(LOG_GUEST_ERROR,\n- \"%s: Unhandled read at offset 0x%\" HWADDR_PRIx \"\\n\",\n- __func__, offset);\n- }\n-\n trace_aspeed_ast2700_scuio_read(offset, size, s->regs[reg]);\n return s->regs[reg];\n }\n", "prefixes": [ "v4", "16/21" ] }