From nobody Mon Feb 9 08:56:02 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1545333091909340.2825203042104; Thu, 20 Dec 2018 11:11:31 -0800 (PST) Received: from localhost ([::1]:39453 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ga3jD-0005rZ-0P for importer@patchew.org; Thu, 20 Dec 2018 14:11:27 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60323) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ga3Et-0005PD-MU for qemu-devel@nongnu.org; Thu, 20 Dec 2018 13:40:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ga3Et-0001UV-0x for qemu-devel@nongnu.org; Thu, 20 Dec 2018 13:40:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:33870) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ga3Es-0001SX-Oo for qemu-devel@nongnu.org; Thu, 20 Dec 2018 13:40:06 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A2CAE8667E; Thu, 20 Dec 2018 18:40:05 +0000 (UTC) Received: from redhat.com (ovpn-122-182.rdu2.redhat.com [10.10.122.182]) by smtp.corp.redhat.com (Postfix) with SMTP id D7CCB5EE04; Thu, 20 Dec 2018 18:40:04 +0000 (UTC) Date: Thu, 20 Dec 2018 13:40:04 -0500 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Message-ID: <20181220183059.20726-38-mst@redhat.com> References: <20181220183059.20726-1-mst@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20181220183059.20726-1-mst@redhat.com> X-Mutt-Fcc: =sent X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 20 Dec 2018 18:40:05 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL v3 37/44] pci/pcie: perform unplug via the hotplug handler X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Igor Mammedov , David Gibson , David Hildenbrand Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: David Hildenbrand Introduce and use the "unplug" callback. This is a preparation for multi-stage hotplug handlers, whereby the bus hotplug handler is overwritten by the machine hotplug handler. This handler will then pass control to the bus hotplug handler. So to get this running cleanly, we also have to make sure to go via the hotplug handler chain when actually unplugging a device after an unplug request. Lookup the hotplug handler and call "unplug". Reviewed-by: David Gibson Reviewed-by: Igor Mammedov Signed-off-by: David Hildenbrand Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/pci/pcie.h | 2 ++ hw/pci/pcie.c | 10 +++++++++- hw/pci/pcie_port.c | 1 + 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index d51ca23f07..cd318646a2 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -134,6 +134,8 @@ void pcie_ats_init(PCIDevice *dev, uint16_t offset); =20 void pcie_cap_slot_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp); +void pcie_cap_slot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp); void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp); #endif /* QEMU_PCIE_H */ diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index ec3b1145f3..2d3d8a047b 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -442,11 +442,19 @@ void pcie_cap_slot_plug_cb(HotplugHandler *hotplug_de= v, DeviceState *dev, } } =20 -static void pcie_unplug_device(PCIBus *bus, PCIDevice *dev, void *opaque) +void pcie_cap_slot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp) { object_unparent(OBJECT(dev)); } =20 +static void pcie_unplug_device(PCIBus *bus, PCIDevice *dev, void *opaque) +{ + HotplugHandler *hotplug_ctrl =3D qdev_get_hotplug_handler(DEVICE(dev)); + + hotplug_handler_unplug(hotplug_ctrl, DEVICE(dev), &error_abort); +} + void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { diff --git a/hw/pci/pcie_port.c b/hw/pci/pcie_port.c index 73e81e5847..bc07abc31b 100644 --- a/hw/pci/pcie_port.c +++ b/hw/pci/pcie_port.c @@ -155,6 +155,7 @@ static void pcie_slot_class_init(ObjectClass *oc, void = *data) =20 dc->props =3D pcie_slot_props; hc->plug =3D pcie_cap_slot_plug_cb; + hc->unplug =3D pcie_cap_slot_unplug_cb; hc->unplug_request =3D pcie_cap_slot_unplug_request_cb; } =20 --=20 MST