From patchwork Tue Feb 2 04:13:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 12060565 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76295C433DB for ; Tue, 2 Feb 2021 04:14:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 402D064ED3 for ; Tue, 2 Feb 2021 04:14:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231597AbhBBEOE (ORCPT ); Mon, 1 Feb 2021 23:14:04 -0500 Received: from ozlabs.org ([203.11.71.1]:52103 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231575AbhBBEOB (ORCPT ); Mon, 1 Feb 2021 23:14:01 -0500 Received: by ozlabs.org (Postfix, from userid 1007) id 4DVBHy0M0Qz9tjs; Tue, 2 Feb 2021 15:13:17 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1612239198; bh=RfSzBSrTuKsV2JBEfuSIZjevzuR/AfKedHtEOaQArcc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EgqTWnM9gvAFXbtvPB+2L+8dobrnwUsmC2r8ivWAzDrnSyoUkglqLqYgP/8u/iBsA 0OTBFEYPKL4QXB8e1LzlyaqtRkOE0a0AEAcW/E7/KCOxYfXLdnL/0pTC5WsGEt8waH quRQrBB5C4k/EhxZHmafEnr5mAENSh1e80KUehH8= From: David Gibson To: dgilbert@redhat.com, pair@us.ibm.com, qemu-devel@nongnu.org, brijesh.singh@amd.com, pasic@linux.ibm.com Cc: pragyansri.pathi@intel.com, Greg Kurz , richard.henderson@linaro.org, berrange@redhat.com, David Hildenbrand , mdroth@linux.vnet.ibm.com, kvm@vger.kernel.org, Marcel Apfelbaum , pbonzini@redhat.com, mtosatti@redhat.com, borntraeger@de.ibm.com, Cornelia Huck , qemu-ppc@nongnu.org, David Gibson , qemu-s390x@nongnu.org, thuth@redhat.com, mst@redhat.com, frankja@linux.ibm.com, jun.nakajima@intel.com, andi.kleen@intel.com, Eduardo Habkost , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Subject: [PATCH v8 01/13] qom: Allow optional sugar props Date: Tue, 2 Feb 2021 15:13:03 +1100 Message-Id: <20210202041315.196530-2-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210202041315.196530-1-david@gibson.dropbear.id.au> References: <20210202041315.196530-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Greg Kurz Global properties have an @optional field, which allows to apply a given property to a given type even if one of its subclasses doesn't support it. This is especially used in the compat code when dealing with the "disable-modern" and "disable-legacy" properties and the "virtio-pci" type. Allow object_register_sugar_prop() to set this field as well. Signed-off-by: Greg Kurz Message-Id: <159738953558.377274.16617742952571083440.stgit@bahia.lan> Signed-off-by: David Gibson Reviewed-by: Eduardo Habkost Reviewed-by: Cornelia Huck Reviewed-by: Philippe Mathieu-Daudé --- include/qom/object.h | 3 ++- qom/object.c | 4 +++- softmmu/rtc.c | 3 ++- softmmu/vl.c | 17 +++++++++++------ 4 files changed, 18 insertions(+), 9 deletions(-) diff --git a/include/qom/object.h b/include/qom/object.h index d378f13a11..6721cd312e 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -638,7 +638,8 @@ bool object_apply_global_props(Object *obj, const GPtrArray *props, Error **errp); void object_set_machine_compat_props(GPtrArray *compat_props); void object_set_accelerator_compat_props(GPtrArray *compat_props); -void object_register_sugar_prop(const char *driver, const char *prop, const char *value); +void object_register_sugar_prop(const char *driver, const char *prop, + const char *value, bool optional); void object_apply_compat_props(Object *obj); /** diff --git a/qom/object.c b/qom/object.c index 2fa0119647..491823db4a 100644 --- a/qom/object.c +++ b/qom/object.c @@ -442,7 +442,8 @@ static GPtrArray *object_compat_props[3]; * other than "-global". These are generally used for syntactic * sugar and legacy command line options. */ -void object_register_sugar_prop(const char *driver, const char *prop, const char *value) +void object_register_sugar_prop(const char *driver, const char *prop, + const char *value, bool optional) { GlobalProperty *g; if (!object_compat_props[2]) { @@ -452,6 +453,7 @@ void object_register_sugar_prop(const char *driver, const char *prop, const char g->driver = g_strdup(driver); g->property = g_strdup(prop); g->value = g_strdup(value); + g->optional = optional; g_ptr_array_add(object_compat_props[2], g); } diff --git a/softmmu/rtc.c b/softmmu/rtc.c index e1e15ef613..5632684fc9 100644 --- a/softmmu/rtc.c +++ b/softmmu/rtc.c @@ -179,7 +179,8 @@ void configure_rtc(QemuOpts *opts) if (!strcmp(value, "slew")) { object_register_sugar_prop("mc146818rtc", "lost_tick_policy", - "slew"); + "slew", + false); } else if (!strcmp(value, "none")) { /* discard is default */ } else { diff --git a/softmmu/vl.c b/softmmu/vl.c index a8876b8965..1b464e3474 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -1663,16 +1663,20 @@ static int machine_set_property(void *opaque, return 0; } if (g_str_equal(qom_name, "igd-passthru")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value); + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value, + false); return 0; } if (g_str_equal(qom_name, "kvm-shadow-mem")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value); + object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value, + false); return 0; } if (g_str_equal(qom_name, "kernel-irqchip")) { - object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value); - object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), qom_name, value); + object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value, + false); + object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), qom_name, value, + false); return 0; } @@ -2297,9 +2301,10 @@ static void qemu_process_sugar_options(void) val = g_strdup_printf("%d", (uint32_t) qemu_opt_get_number(qemu_find_opts_singleton("smp-opts"), "cpus", 1)); - object_register_sugar_prop("memory-backend", "prealloc-threads", val); + object_register_sugar_prop("memory-backend", "prealloc-threads", val, + false); g_free(val); - object_register_sugar_prop("memory-backend", "prealloc", "on"); + object_register_sugar_prop("memory-backend", "prealloc", "on", false); } if (watchdog) {