From nobody Sun Feb 8 23:32:51 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1770108955; cv=none; d=zohomail.com; s=zohoarc; b=ipQNPx56ICWMEJ0GtpVkLpQhIIUppBp9FcDNWnCiaUUlpcRgJAng99NkTH1x4uxLwUvvsELJZ6gD1fxQ+8y56C9PVejxPZDQ69b+rYIJOPk0Zlo8aXJ455VtMVLw+Wy2sbOrDprE1PuUeQ3vlwEj4f5o29e0Wa62bB9KHqZbI14= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1770108955; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=SuA42NfDw3yhhScAS32zTQGOvNKDwrwXKhBmmQ+wVH0=; b=kky1xIY2bT76iyIep9Z2wU1Jnpza0WlFoTVOv1tHOam4OUS30VmjWtPuAuMhxuOlK3Ya0nfq+JbIw97RTRmegngo2qvvBRo2N4a5mb+ROg4D/wQi0Z2EpPMf+wDrxDWmYPyIeYDekF/9WFd5D45rLuR4Jg643gJhhIHvqKEEVuY= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1770108955483971.4892416780866; Tue, 3 Feb 2026 00:55:55 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vnCB5-0006KH-HA; Tue, 03 Feb 2026 03:54:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vnCAn-0005Up-KI; Tue, 03 Feb 2026 03:54:15 -0500 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vnCAj-0003Po-QD; Tue, 03 Feb 2026 03:54:12 -0500 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Tue, 3 Feb 2026 16:52:39 +0800 Received: from mail.aspeedtech.com (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Tue, 3 Feb 2026 16:52:39 +0800 To: , , Paolo Bonzini , Peter Maydell , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Steven Lee , Troy Lee , Andrew Jeffery , Joel Stanley , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "open list:All patches CC here" , "open list:ARM TCG CPUs" CC: , , , Patrick Venture Subject: [PATCH v2 19/20] hw/i3c: Add hotplug support Date: Tue, 3 Feb 2026 16:52:19 +0800 Message-ID: <20260203085229.1543287-20-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260203085229.1543287-1-jamin_lin@aspeedtech.com> References: <20260203085229.1543287-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX01.aspeed.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_FAIL=0.001, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jamin Lin From: Jamin Lin via qemu development Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1770108957470158500 Content-Type: text/plain; charset="utf-8" From: Joe Komlodi This adds support for hotplugging in I3C. Conceptually this can be thought of as an I3C target being physically socketed onto a board. It is then the target's responsibility to go through the hot-join and DAA process so it can participate on the bus. Signed-off-by: Joe Komlodi Reviewed-by: Patrick Venture --- hw/i3c/core.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/hw/i3c/core.c b/hw/i3c/core.c index fb4bfe5aec..1ab95c4866 100644 --- a/hw/i3c/core.c +++ b/hw/i3c/core.c @@ -11,6 +11,7 @@ #include "qapi/error.h" #include "trace.h" #include "hw/i3c/i3c.h" +#include "hw/core/hotplug.h" #include "hw/core/qdev-properties.h" =20 /* @@ -26,11 +27,27 @@ static const Property i3c_props[] =3D { DEFINE_PROP_UINT64("pid", struct I3CTarget, pid, 0), }; =20 +static void i3c_realize(BusState *bus, Error **errp) +{ + qbus_set_bus_hotplug_handler(bus); +} + +static void i3c_class_init(ObjectClass *klass, const void *data) +{ + BusClass *k =3D BUS_CLASS(klass); + k->realize =3D i3c_realize; +} + static const TypeInfo i3c_bus_info =3D { .name =3D TYPE_I3C_BUS, .parent =3D TYPE_BUS, .instance_size =3D sizeof(I3CBus), .class_size =3D sizeof(I3CBusClass), + .class_init =3D i3c_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } }; =20 I3CBus *i3c_init_bus(DeviceState *parent, const char *name) --=20 2.43.0