From nobody Sun Apr 12 00:55:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1772733573; cv=none; d=zohomail.com; s=zohoarc; b=L8NkiyD9MO9jwDEGGOExGMIkFYL25QmlBOJXILXcNU/dIE1kt2dO5JMz8Bz60dYzmtHM35FqEzufpS+XLSfjan5C2+raaTgKdReuYoiDZLyCeLr33loSqDw9qGkHDXX4xJRmrBdlq8rz6fECP248zJJmKLFTKHCXQMXPHGnDXjs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772733573; 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:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=1Cd51VCF/vRvT+LsS0ZycT/RdLm1KBSg+Z/mg3jWnEo=; b=eKtxZ/5FL0LYN7JZHULK9d0DajCmk72BtWWoIvMZI6Us1UYW7+3GH0n3rLNR9jNNQaNldmb7e7MugBt1cod442sN0899vUnOGxSlcJ32BnyG/piJS+AYQ5gZWlY8bNnHgUI3yxV59Iy/D7sLuVBlizBUmGee3ZYF/XFyCrX+Qe4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 177273357376813.097511376070997; Thu, 5 Mar 2026 09:59:33 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyCyD-0000bf-AR; Thu, 05 Mar 2026 12:58:45 -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 1vyCxy-0000Bf-OL for qemu-devel@nongnu.org; Thu, 05 Mar 2026 12:58:31 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vyCxo-0003j2-T9 for qemu-devel@nongnu.org; Thu, 05 Mar 2026 12:58:25 -0500 Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-3-NJkPTRtdPzemmn705iZOyA-1; Thu, 05 Mar 2026 12:58:16 -0500 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 629BA1955F3C; Thu, 5 Mar 2026 17:58:14 +0000 (UTC) Received: from corto.redhat.com (unknown [10.44.32.26]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 109683003E9E; Thu, 5 Mar 2026 17:58:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772733497; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1Cd51VCF/vRvT+LsS0ZycT/RdLm1KBSg+Z/mg3jWnEo=; b=R5Ib9fScPlJs4DjLOPyNnaptcCQn9mrVUql4EbijFU3KtuknaWCdtDChZWm3O8dLRwKctQ ISY3ugj0ubkPdnvE8AZGR4T0496o2sM7BwtHh4M0aeHTvwOwACkc8KEB51hUzk/VH3ZJU7 9hq2NjrAGcV8ZbV9oJjyHR5cPHHq8/E= X-MC-Unique: NJkPTRtdPzemmn705iZOyA-1 X-Mimecast-MFC-AGG-ID: NJkPTRtdPzemmn705iZOyA_1772733494 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Jamin Lin , Joe Komlodi , Patrick Venture , Jithu Joseph , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 21/38] hw/i3c: Add hotplug support Date: Thu, 5 Mar 2026 18:56:54 +0100 Message-ID: <20260305175711.1119025-22-clg@redhat.com> In-Reply-To: <20260305175711.1119025-1-clg@redhat.com> References: <20260305175711.1119025-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -5 X-Spam_score: -0.6 X-Spam_bar: / X-Spam_report: (-0.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.892, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.622, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1772733574414158500 From: Jamin Lin 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 Signed-off-by: Jamin Lin Tested-by: Jithu Joseph Link: https://lore.kernel.org/qemu-devel/20260225021158.1586584-21-jamin_li= n@aspeedtech.com Signed-off-by: C=C3=A9dric Le Goater --- hw/i3c/core.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/hw/i3c/core.c b/hw/i3c/core.c index 22e6e226a76d..8a37099ce3ff 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 /* @@ -26,6 +27,17 @@ 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; +} + I3CBus *i3c_init_bus(DeviceState *parent, const char *name) { return i3c_init_bus_type(TYPE_I3C_BUS, parent, name); @@ -633,6 +645,11 @@ static const TypeInfo i3c_types[] =3D { .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 }, + { } + } }, { .name =3D TYPE_I3C_TARGET, --=20 2.53.0