From patchwork Fri Oct 29 14:22:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Damien Hedde X-Patchwork-Id: 1548059 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; secure) header.d=greensocs.com header.i=@greensocs.com header.a=rsa-sha256 header.s=mail header.b=CZlgbQ3Q; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HglBg71L3z9sRK for ; Sat, 30 Oct 2021 01:27:39 +1100 (AEDT) Received: from localhost ([::1]:44008 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgSr2-0006SU-T1 for incoming@patchwork.ozlabs.org; Fri, 29 Oct 2021 10:27:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44054) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgSpY-0006Pe-Mx for qemu-devel@nongnu.org; Fri, 29 Oct 2021 10:26:04 -0400 Received: from beetle.greensocs.com ([5.135.226.135]:39176) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgSpV-0003g5-Tq for qemu-devel@nongnu.org; Fri, 29 Oct 2021 10:26:04 -0400 Received: from crumble.bar.greensocs.com (unknown [172.17.10.10]) by beetle.greensocs.com (Postfix) with ESMTPS id D7D0821A8F; Fri, 29 Oct 2021 14:25:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=greensocs.com; s=mail; t=1635517557; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=huBxGOz5zinexbYxgB4BKQGsLdO/Z+xWnjghER1WKR8=; b=CZlgbQ3QqpDMIShJ7Wn3SMnKgamtstYMfx7Y0m3erTn0SLs3dUG83ZSre4TLF8h4JcatZ4 Bmx0WDKtM1X+i0jvpJsHzOxwKpTs5Eth3RgrDeQ5XHkTHiqzb8DZHOEjvjdr4q61/Pjo+E 8GlqbmzA5gIsinHR4jouImWtPyvoHJ8= From: Damien Hedde To: qemu-devel@nongnu.org Subject: [PATCH v3 1/3] machine: add device_type_is_dynamic_sysbus function Date: Fri, 29 Oct 2021 16:22:56 +0200 Message-Id: <20211029142258.484907-2-damien.hedde@greensocs.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211029142258.484907-1-damien.hedde@greensocs.com> References: <20211029142258.484907-1-damien.hedde@greensocs.com> MIME-Version: 1.0 X-Spam: Yes Received-SPF: pass client-ip=5.135.226.135; envelope-from=damien.hedde@greensocs.com; helo=beetle.greensocs.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Damien Hedde , =?utf-8?q?Daniel_P=2E_Berrang?= =?utf-8?q?=C3=A9?= , Eduardo Habkost , mark.burton@greensocs.com, edgari@xilinx.com, mirela.grujic@greensocs.com, Alistair Francis , Ani Sinha , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Right now the allowance check for adding a sysbus device using -device cli option (or device_add qmp command) is done well after the device has been created. It is done during the machine init done notifier: machine_init_notify() in hw/core/machine.c This new function will allow us to do the check at the right time and issue an error if it fails. Also make device_is_dynamic_sysbus() use the new function. Signed-off-by: Damien Hedde Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- Cc: Ani Sinha v3: change the function name (Ani) --- include/hw/boards.h | 15 +++++++++++++++ hw/core/machine.c | 13 ++++++++++--- 2 files changed, 25 insertions(+), 3 deletions(-) diff --git a/include/hw/boards.h b/include/hw/boards.h index 5adbcbb99b..85adf660c1 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -51,6 +51,21 @@ void machine_set_cpu_numa_node(MachineState *machine, */ void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type); +/** + * device_type_is_dynamic_sysbus: Check if type is an allowed sysbus device + * type for the machine class. + * @mc: Machine class + * @type: type to check (should be a subtype of TYPE_SYS_BUS_DEVICE) + * + * Returns: true if @type is a type in the machine's list of + * dynamically pluggable sysbus devices; otherwise false. + * + * Check if the QOM type @type is in the list of allowed sysbus device + * types (see machine_class_allowed_dynamic_sysbus_dev()). + * Note that if @type has a parent type in the list, it is allowed too. + */ +bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type); + /** * device_is_dynamic_sysbus: test whether device is a dynamic sysbus device * @mc: Machine class diff --git a/hw/core/machine.c b/hw/core/machine.c index b8d95eec32..0d20104796 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -548,18 +548,25 @@ void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type) bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev) { - bool allowed = false; - strList *wl; Object *obj = OBJECT(dev); if (!object_dynamic_cast(obj, TYPE_SYS_BUS_DEVICE)) { return false; } + return device_type_is_dynamic_sysbus(mc, object_get_typename(obj)); +} + +bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type) +{ + bool allowed = false; + strList *wl; + ObjectClass *klass = object_class_by_name(type); + for (wl = mc->allowed_dynamic_sysbus_devices; !allowed && wl; wl = wl->next) { - allowed |= !!object_dynamic_cast(obj, wl->value); + allowed |= !!object_class_dynamic_cast(klass, wl->value); } return allowed;