From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 545C4C2D0A3 for ; Wed, 4 Nov 2020 17:31:10 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7730820759 for ; Wed, 4 Nov 2020 17:31:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WhaUsOVn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7730820759 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38292 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kaMcm-0000mL-9D for qemu-devel@archiver.kernel.org; Wed, 04 Nov 2020 12:31:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60940) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kaMXb-0001Ro-3O for qemu-devel@nongnu.org; Wed, 04 Nov 2020 12:25:48 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:57012) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kaMXX-0008KK-Ds for qemu-devel@nongnu.org; Wed, 04 Nov 2020 12:25:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604510742; 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=Q5BeNYOZ4RDTFOfuNV6EvBOecZflftp3s5pV01xgFqI=; b=WhaUsOVnDkpsIxNfLQzar1rNZwy/plNMQavYBea5cAJG2vlTjKx1pG37JZzMkM93EenxBM 29d+9a5MsGnorTl3PpoiMluMO0oqIcs+c5YSDv1OV84qKxcdNBhoDObBAZHpNtEFrj5TAc WDzVjOVtrHBpb3J1PtJHYydVdXNNubs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-333-Ue3Ir6wOOOWpdg8TaOCtAA-1; Wed, 04 Nov 2020 12:25:41 -0500 X-MC-Unique: Ue3Ir6wOOOWpdg8TaOCtAA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D20F411BD342; Wed, 4 Nov 2020 17:25:38 +0000 (UTC) Received: from localhost (ovpn-114-68.rdu2.redhat.com [10.10.114.68]) by smtp.corp.redhat.com (Postfix) with ESMTP id E97BE65F5E; Wed, 4 Nov 2020 17:25:31 +0000 (UTC) From: Eduardo Habkost To: qemu-devel@nongnu.org Subject: [PATCH 6/7] qom: Add FIELD_PTR, a type-safe wrapper for object_field_prop_ptr() Date: Wed, 4 Nov 2020 12:25:11 -0500 Message-Id: <20201104172512.2381656-7-ehabkost@redhat.com> In-Reply-To: <20201104172512.2381656-1-ehabkost@redhat.com> References: <20201104172512.2381656-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=ehabkost@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/03 00:03:41 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, 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, 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: Kevin Wolf , Thomas Huth , Stefano Stabellini , "Daniel P. Berrange" , xen-devel@lists.xenproject.org, Matthew Rosato , Stefan Berger , Cornelia Huck , Paul Durrant , David Hildenbrand , qemu-s390x@nongnu.org, Max Reitz , Halil Pasic , Christian Borntraeger , Alex Williamson , Paolo Bonzini , Anthony Perard , Igor Mammedov , qemu-block@nongnu.org, Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Introduce a FIELD_PTR macro that will ensure the size of the area we are accessing has the correct size, and will return a pointer of the correct type. Signed-off-by: Eduardo Habkost --- Cc: Stefan Berger Cc: Stefano Stabellini Cc: Anthony Perard Cc: Paul Durrant Cc: Kevin Wolf Cc: Max Reitz Cc: Paolo Bonzini Cc: "Daniel P. Berrangé" Cc: Eduardo Habkost Cc: Cornelia Huck Cc: Thomas Huth Cc: Halil Pasic Cc: Christian Borntraeger Cc: Richard Henderson Cc: David Hildenbrand Cc: Matthew Rosato Cc: Alex Williamson Cc: qemu-devel@nongnu.org Cc: xen-devel@lists.xenproject.org Cc: qemu-block@nongnu.org Cc: qemu-s390x@nongnu.org --- include/qom/field-property.h | 21 ++++++++++- backends/tpm/tpm_util.c | 6 ++-- hw/block/xen-block.c | 4 +-- hw/core/qdev-properties-system.c | 50 +++++++++++++------------- hw/s390x/css.c | 4 +-- hw/s390x/s390-pci-bus.c | 4 +-- hw/vfio/pci-quirks.c | 4 +-- qom/field-property.c | 3 +- qom/property-types.c | 60 +++++++++++++++++--------------- 9 files changed, 89 insertions(+), 67 deletions(-) diff --git a/include/qom/field-property.h b/include/qom/field-property.h index 1d3bf9699b..58baaca160 100644 --- a/include/qom/field-property.h +++ b/include/qom/field-property.h @@ -125,6 +125,25 @@ object_class_property_add_field(ObjectClass *oc, const char *name, Property *prop, ObjectPropertyAllowSet allow_set); -void *object_field_prop_ptr(Object *obj, Property *prop); +/** + * object_field_prop_ptr: Get pointer to property field + * @obj: the object instance + * @prop: field property definition + * @expected_size: expected size of struct field + * + * Don't use this function directly, use the FIELD_PTR() macro instead. + */ +void *object_field_prop_ptr(Object *obj, Property *prop, size_t expected_size); + +/** + * FIELD_PTR: Get pointer to struct field for property + * + * This returns a pointer to type @type, pointing to the struct + * field containing the property value. + * + * @type must match the expected type for the property. + */ +#define FIELD_PTR(obj, prop, type) \ + ((type *)object_field_prop_ptr((obj), (prop), sizeof(type))) #endif diff --git a/backends/tpm/tpm_util.c b/backends/tpm/tpm_util.c index 556e21388c..da80379404 100644 --- a/backends/tpm/tpm_util.c +++ b/backends/tpm/tpm_util.c @@ -35,7 +35,7 @@ static void get_tpm(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - TPMBackend **be = object_field_prop_ptr(obj, prop); + TPMBackend **be = FIELD_PTR(obj, prop, TPMBackend *); char *p; p = g_strdup(*be ? (*be)->id : ""); @@ -46,7 +46,7 @@ static void get_tpm(Object *obj, Visitor *v, const char *name, static void set_tpm(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - TPMBackend *s, **be = object_field_prop_ptr(obj, prop); + TPMBackend *s, **be = FIELD_PTR(obj, prop, TPMBackend *); char *str; if (!visit_type_str(v, name, &str, errp)) { @@ -65,7 +65,7 @@ static void set_tpm(Object *obj, Visitor *v, const char *name, static void release_tpm(Object *obj, const char *name, Property *prop) { - TPMBackend **be = object_field_prop_ptr(obj, prop); + TPMBackend **be = FIELD_PTR(obj, prop, TPMBackend *); if (*be) { tpm_backend_reset(*be); diff --git a/hw/block/xen-block.c b/hw/block/xen-block.c index c1ee634639..390bf417ab 100644 --- a/hw/block/xen-block.c +++ b/hw/block/xen-block.c @@ -335,7 +335,7 @@ static char *disk_to_vbd_name(unsigned int disk) static void xen_block_get_vdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - XenBlockVdev *vdev = object_field_prop_ptr(obj, prop); + XenBlockVdev *vdev = FIELD_PTR(obj, prop, XenBlockVdev); char *str; switch (vdev->type) { @@ -394,7 +394,7 @@ static int vbd_name_to_disk(const char *name, const char **endp, static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - XenBlockVdev *vdev = object_field_prop_ptr(obj, prop); + XenBlockVdev *vdev = FIELD_PTR(obj, prop, XenBlockVdev); char *str, *p; const char *end; diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c index 2fdd5863bb..1ec64514b9 100644 --- a/hw/core/qdev-properties-system.c +++ b/hw/core/qdev-properties-system.c @@ -61,7 +61,7 @@ static bool check_prop_still_unset(Object *obj, const char *name, static void get_drive(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - void **ptr = object_field_prop_ptr(obj, prop); + void **ptr = FIELD_PTR(obj, prop, void *); const char *value; char *p; @@ -87,7 +87,7 @@ static void set_drive_helper(Object *obj, Visitor *v, const char *name, { DeviceState *dev = DEVICE(obj); Property *prop = opaque; - void **ptr = object_field_prop_ptr(obj, prop); + void **ptr = FIELD_PTR(obj, prop, void *); char *str; BlockBackend *blk; bool blk_created = false; @@ -179,7 +179,7 @@ static void set_drive_iothread(Object *obj, Visitor *v, const char *name, static void release_drive(Object *obj, const char *name, Property *prop) { DeviceState *dev = DEVICE(obj); - BlockBackend **ptr = object_field_prop_ptr(obj, prop); + BlockBackend **ptr = FIELD_PTR(obj, prop, BlockBackend *); if (*ptr) { AioContext *ctx = blk_get_aio_context(*ptr); @@ -212,7 +212,7 @@ const PropertyInfo qdev_prop_drive_iothread = { static void get_chr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); char *p; p = g_strdup(be->chr && be->chr->label ? be->chr->label : ""); @@ -223,7 +223,7 @@ static void get_chr(Object *obj, Visitor *v, const char *name, static void set_chr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); Chardev *s; char *str; @@ -258,7 +258,7 @@ static void set_chr(Object *obj, Visitor *v, const char *name, static void release_chr(Object *obj, const char *name, Property *prop) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); qemu_chr_fe_deinit(be, false); } @@ -281,7 +281,7 @@ const PropertyInfo qdev_prop_chr = { static void get_mac(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - MACAddr *mac = object_field_prop_ptr(obj, prop); + MACAddr *mac = FIELD_PTR(obj, prop, MACAddr); char buffer[2 * 6 + 5 + 1]; char *p = buffer; @@ -295,7 +295,7 @@ static void get_mac(Object *obj, Visitor *v, const char *name, static void set_mac(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - MACAddr *mac = object_field_prop_ptr(obj, prop); + MACAddr *mac = FIELD_PTR(obj, prop, MACAddr); int i, pos; char *str; const char *p; @@ -356,7 +356,7 @@ void qdev_prop_set_macaddr(DeviceState *dev, const char *name, static void get_netdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); + NICPeers *peers_ptr = FIELD_PTR(obj, prop, NICPeers); char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : ""); visit_type_str(v, name, &p, errp); @@ -366,7 +366,7 @@ static void get_netdev(Object *obj, Visitor *v, const char *name, static void set_netdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); + NICPeers *peers_ptr = FIELD_PTR(obj, prop, NICPeers); NetClientState **ncs = peers_ptr->ncs; NetClientState *peers[MAX_QUEUE_NUM]; int queues, err = 0, i = 0; @@ -427,7 +427,7 @@ const PropertyInfo qdev_prop_netdev = { static void get_audiodev(Object *obj, Visitor *v, const char* name, Property *prop, Error **errp) { - QEMUSoundCard *card = object_field_prop_ptr(obj, prop); + QEMUSoundCard *card = FIELD_PTR(obj, prop, QEMUSoundCard); char *p = g_strdup(audio_get_id(card)); visit_type_str(v, name, &p, errp); @@ -437,7 +437,7 @@ static void get_audiodev(Object *obj, Visitor *v, const char* name, static void set_audiodev(Object *obj, Visitor *v, const char* name, Property *prop, Error **errp) { - QEMUSoundCard *card = object_field_prop_ptr(obj, prop); + QEMUSoundCard *card = FIELD_PTR(obj, prop, QEMUSoundCard); AudioState *state; int err = 0; char *str; @@ -538,7 +538,7 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { DeviceState *dev = DEVICE(obj); - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value; Error *local_err = NULL; @@ -625,7 +625,7 @@ const PropertyInfo qdev_prop_multifd_compression = { static void get_reserved_region(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - ReservedRegion *rr = object_field_prop_ptr(obj, prop); + ReservedRegion *rr = FIELD_PTR(obj, prop, ReservedRegion); char buffer[64]; char *p = buffer; int rc; @@ -640,7 +640,7 @@ static void get_reserved_region(Object *obj, Visitor *v, const char *name, static void set_reserved_region(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - ReservedRegion *rr = object_field_prop_ptr(obj, prop); + ReservedRegion *rr = FIELD_PTR(obj, prop, ReservedRegion); Error *local_err = NULL; const char *endptr; char *str; @@ -701,7 +701,7 @@ const PropertyInfo qdev_prop_reserved_region = { static void set_pci_devfn(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t value, *ptr = object_field_prop_ptr(obj, prop); + int32_t value, *ptr = FIELD_PTR(obj, prop, int32_t); unsigned int slot, fn, n; char *str; @@ -739,7 +739,7 @@ invalid: static int print_pci_devfn(Object *obj, Property *prop, char *dest, size_t len) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); if (*ptr == -1) { return snprintf(dest, len, ""); @@ -762,7 +762,7 @@ const PropertyInfo qdev_prop_pci_devfn = { static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); + PCIHostDeviceAddress *addr = FIELD_PTR(obj, prop, PCIHostDeviceAddress); char buffer[] = "ffff:ff:ff.f"; char *p = buffer; int rc = 0; @@ -787,7 +787,7 @@ static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); + PCIHostDeviceAddress *addr = FIELD_PTR(obj, prop, PCIHostDeviceAddress); char *str, *p; const char *e; unsigned long val; @@ -875,7 +875,7 @@ const PropertyInfo qdev_prop_off_auto_pcibar = { static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); + PCIExpLinkSpeed *p = FIELD_PTR(obj, prop, PCIExpLinkSpeed); int speed; switch (*p) { @@ -902,7 +902,7 @@ static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); + PCIExpLinkSpeed *p = FIELD_PTR(obj, prop, PCIExpLinkSpeed); int speed; if (!visit_type_enum(v, name, &speed, prop->info->enum_table, @@ -943,7 +943,7 @@ const PropertyInfo qdev_prop_pcie_link_speed = { static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); + PCIExpLinkWidth *p = FIELD_PTR(obj, prop, PCIExpLinkWidth); int width; switch (*p) { @@ -979,7 +979,7 @@ static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); + PCIExpLinkWidth *p = FIELD_PTR(obj, prop, PCIExpLinkWidth); int width; if (!visit_type_enum(v, name, &width, prop->info->enum_table, @@ -1029,7 +1029,7 @@ const PropertyInfo qdev_prop_pcie_link_width = { static void get_uuid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - QemuUUID *uuid = object_field_prop_ptr(obj, prop); + QemuUUID *uuid = FIELD_PTR(obj, prop, QemuUUID); char buffer[UUID_FMT_LEN + 1]; char *p = buffer; @@ -1043,7 +1043,7 @@ static void get_uuid(Object *obj, Visitor *v, const char *name, static void set_uuid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - QemuUUID *uuid = object_field_prop_ptr(obj, prop); + QemuUUID *uuid = FIELD_PTR(obj, prop, QemuUUID); char *str; if (!visit_type_str(v, name, &str, errp)) { diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 1400d80689..5a38919a05 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -2343,7 +2343,7 @@ void css_reset(void) static void get_css_devid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CssDevId *dev_id = object_field_prop_ptr(obj, prop); + CssDevId *dev_id = FIELD_PTR(obj, prop, CssDevId); char buffer[] = "xx.x.xxxx"; char *p = buffer; int r; @@ -2371,7 +2371,7 @@ static void get_css_devid(Object *obj, Visitor *v, const char *name, static void set_css_devid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CssDevId *dev_id = object_field_prop_ptr(obj, prop); + CssDevId *dev_id = FIELD_PTR(obj, prop, CssDevId); char *str; int num, n1, n2; unsigned int cssid, ssid, devid; diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index a29bba17b4..8e38787c99 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -1322,7 +1322,7 @@ static void s390_pci_device_reset(DeviceState *dev) static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -1331,7 +1331,7 @@ static void s390_pci_set_fid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { S390PCIBusDevice *zpci = S390_PCI_DEVICE(obj); - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); if (!visit_type_uint32(v, name, ptr, errp)) { return; diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c index 34f5f5dce2..93fb507ec4 100644 --- a/hw/vfio/pci-quirks.c +++ b/hw/vfio/pci-quirks.c @@ -1488,7 +1488,7 @@ static void get_nv_gpudirect_clique_id(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -1497,7 +1497,7 @@ static void set_nv_gpudirect_clique_id(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t value, *ptr = object_field_prop_ptr(obj, prop); + uint8_t value, *ptr = FIELD_PTR(obj, prop, uint8_t); if (!visit_type_uint8(v, name, &value, errp)) { return; diff --git a/qom/field-property.c b/qom/field-property.c index 865d4929a3..0932a799de 100644 --- a/qom/field-property.c +++ b/qom/field-property.c @@ -5,10 +5,11 @@ #include "qom/field-property.h" #include "qom/field-property-internal.h" -void *object_field_prop_ptr(Object *obj, Property *prop) +void *object_field_prop_ptr(Object *obj, Property *prop, size_t expected_size) { void *ptr = obj; ptr += prop->offset; + assert(prop->size == expected_size); return ptr; } diff --git a/qom/property-types.c b/qom/property-types.c index 0182a73e38..e01f5a9fef 100644 --- a/qom/property-types.c +++ b/qom/property-types.c @@ -10,7 +10,7 @@ void field_prop_get_enum(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int *ptr = object_field_prop_ptr(obj, prop); + int *ptr = FIELD_PTR(obj, prop, int); visit_type_enum(v, name, ptr, prop->info->enum_table, errp); } @@ -18,7 +18,7 @@ void field_prop_get_enum(Object *obj, Visitor *v, const char *name, void field_prop_set_enum(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int *ptr = object_field_prop_ptr(obj, prop); + int *ptr = FIELD_PTR(obj, prop, int); visit_type_enum(v, name, ptr, prop->info->enum_table, errp); } @@ -47,7 +47,7 @@ static uint32_t qdev_get_prop_mask(Property *prop) static void bit_prop_set(Object *obj, Property *props, bool val) { - uint32_t *p = object_field_prop_ptr(obj, props); + uint32_t *p = FIELD_PTR(obj, props, uint32_t); uint32_t mask = qdev_get_prop_mask(props); if (val) { *p |= mask; @@ -59,7 +59,7 @@ static void bit_prop_set(Object *obj, Property *props, bool val) static void prop_get_bit(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *p = object_field_prop_ptr(obj, prop); + uint32_t *p = FIELD_PTR(obj, prop, uint32_t); bool value = (*p & qdev_get_prop_mask(prop)) != 0; visit_type_bool(v, name, &value, errp); @@ -99,7 +99,7 @@ static uint64_t qdev_get_prop_mask64(Property *prop) static void bit64_prop_set(Object *obj, Property *props, bool val) { - uint64_t *p = object_field_prop_ptr(obj, props); + uint64_t *p = FIELD_PTR(obj, props, uint64_t); uint64_t mask = qdev_get_prop_mask64(props); if (val) { *p |= mask; @@ -111,7 +111,7 @@ static void bit64_prop_set(Object *obj, Property *props, bool val) static void prop_get_bit64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *p = object_field_prop_ptr(obj, prop); + uint64_t *p = FIELD_PTR(obj, prop, uint64_t); bool value = (*p & qdev_get_prop_mask64(prop)) != 0; visit_type_bool(v, name, &value, errp); @@ -141,7 +141,7 @@ const PropertyInfo prop_info_bit64 = { static void get_bool(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - bool *ptr = object_field_prop_ptr(obj, prop); + bool *ptr = FIELD_PTR(obj, prop, bool); visit_type_bool(v, name, ptr, errp); } @@ -149,7 +149,7 @@ static void get_bool(Object *obj, Visitor *v, const char *name, static void set_bool(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - bool *ptr = object_field_prop_ptr(obj, prop); + bool *ptr = FIELD_PTR(obj, prop, bool); visit_type_bool(v, name, ptr, errp); } @@ -166,7 +166,7 @@ const PropertyInfo prop_info_bool = { static void get_uint8(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -174,7 +174,7 @@ static void get_uint8(Object *obj, Visitor *v, const char *name, static void set_uint8(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -203,7 +203,7 @@ const PropertyInfo prop_info_uint8 = { static void get_uint16(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint16_t *ptr = object_field_prop_ptr(obj, prop); + uint16_t *ptr = FIELD_PTR(obj, prop, uint16_t); visit_type_uint16(v, name, ptr, errp); } @@ -211,7 +211,7 @@ static void get_uint16(Object *obj, Visitor *v, const char *name, static void set_uint16(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint16_t *ptr = object_field_prop_ptr(obj, prop); + uint16_t *ptr = FIELD_PTR(obj, prop, uint16_t); visit_type_uint16(v, name, ptr, errp); } @@ -228,7 +228,7 @@ const PropertyInfo prop_info_uint16 = { static void get_uint32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -236,7 +236,7 @@ static void get_uint32(Object *obj, Visitor *v, const char *name, static void set_uint32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -244,7 +244,7 @@ static void set_uint32(Object *obj, Visitor *v, const char *name, void field_prop_get_int32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); visit_type_int32(v, name, ptr, errp); } @@ -252,7 +252,7 @@ void field_prop_get_int32(Object *obj, Visitor *v, const char *name, static void set_int32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); visit_type_int32(v, name, ptr, errp); } @@ -276,7 +276,7 @@ const PropertyInfo prop_info_int32 = { static void get_uint64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_uint64(v, name, ptr, errp); } @@ -284,7 +284,7 @@ static void get_uint64(Object *obj, Visitor *v, const char *name, static void set_uint64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_uint64(v, name, ptr, errp); } @@ -292,7 +292,7 @@ static void set_uint64(Object *obj, Visitor *v, const char *name, static void get_int64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int64_t *ptr = object_field_prop_ptr(obj, prop); + int64_t *ptr = FIELD_PTR(obj, prop, int64_t); visit_type_int64(v, name, ptr, errp); } @@ -300,7 +300,7 @@ static void get_int64(Object *obj, Visitor *v, const char *name, static void set_int64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int64_t *ptr = object_field_prop_ptr(obj, prop); + int64_t *ptr = FIELD_PTR(obj, prop, int64_t); visit_type_int64(v, name, ptr, errp); } @@ -323,13 +323,14 @@ const PropertyInfo prop_info_int64 = { static void release_string(Object *obj, const char *name, Property *prop) { - g_free(*(char **)object_field_prop_ptr(obj, prop)); + char **ptr = FIELD_PTR(obj, prop, char *); + g_free(*ptr); } static void get_string(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - char **ptr = object_field_prop_ptr(obj, prop); + char **ptr = FIELD_PTR(obj, prop, char *); if (!*ptr) { char *str = (char *)""; @@ -342,7 +343,7 @@ static void get_string(Object *obj, Visitor *v, const char *name, static void set_string(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - char **ptr = object_field_prop_ptr(obj, prop); + char **ptr = FIELD_PTR(obj, prop, char *); char *str; if (!visit_type_str(v, name, &str, errp)) { @@ -375,7 +376,7 @@ const PropertyInfo prop_info_on_off_auto = { void field_prop_get_size32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value = *ptr; visit_type_size(v, name, &value, errp); @@ -384,7 +385,7 @@ void field_prop_get_size32(Object *obj, Visitor *v, const char *name, static void set_size32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value; if (!visit_type_size(v, name, &value, errp)) { @@ -415,7 +416,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { ObjectProperty *op = object_property_find_err(obj, name, &error_abort); - uint32_t *alenptr = object_field_prop_ptr(obj, prop); + uint32_t *alenptr = FIELD_PTR(obj, prop, uint32_t); void **arrayptr = (void *)obj + prop->arrayoffset; void *eltptr; const char *arrayname; @@ -455,7 +456,8 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name, */ arrayprop->offset = eltptr - (void *)obj; arrayprop->size = prop->arrayfieldsize; - assert(object_field_prop_ptr(obj, arrayprop) == eltptr); + assert(object_field_prop_ptr(obj, arrayprop, + prop->arrayfieldsize) == eltptr); object_property_add_field(obj, propname, arrayprop, op->allow_set); } } @@ -472,7 +474,7 @@ const PropertyInfo prop_info_arraylen = { static void get_size(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_size(v, name, ptr, errp); } @@ -480,7 +482,7 @@ static void get_size(Object *obj, Visitor *v, const char *name, static void set_size(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_size(v, name, ptr, errp); } -- 2.28.0 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 83FFFC388F9 for ; Wed, 4 Nov 2020 17:26:02 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F07F020782 for ; 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bh=Q5BeNYOZ4RDTFOfuNV6EvBOecZflftp3s5pV01xgFqI=; b=WhaUsOVnDkpsIxNfLQzar1rNZwy/plNMQavYBea5cAJG2vlTjKx1pG37JZzMkM93EenxBM 29d+9a5MsGnorTl3PpoiMluMO0oqIcs+c5YSDv1OV84qKxcdNBhoDObBAZHpNtEFrj5TAc WDzVjOVtrHBpb3J1PtJHYydVdXNNubs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-333-Ue3Ir6wOOOWpdg8TaOCtAA-1; Wed, 04 Nov 2020 12:25:41 -0500 X-MC-Unique: Ue3Ir6wOOOWpdg8TaOCtAA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D20F411BD342; Wed, 4 Nov 2020 17:25:38 +0000 (UTC) Received: from localhost (ovpn-114-68.rdu2.redhat.com [10.10.114.68]) by smtp.corp.redhat.com (Postfix) with ESMTP id E97BE65F5E; Wed, 4 Nov 2020 17:25:31 +0000 (UTC) From: Eduardo Habkost To: qemu-devel@nongnu.org Cc: Igor Mammedov , "Daniel P. Berrange" , Paolo Bonzini , Stefan Berger , Stefano Stabellini , Anthony Perard , Paul Durrant , Kevin Wolf , Max Reitz , Cornelia Huck , Thomas Huth , Halil Pasic , Christian Borntraeger , Richard Henderson , David Hildenbrand , Matthew Rosato , Alex Williamson , xen-devel@lists.xenproject.org, qemu-block@nongnu.org, qemu-s390x@nongnu.org Subject: [PATCH 6/7] qom: Add FIELD_PTR, a type-safe wrapper for object_field_prop_ptr() Date: Wed, 4 Nov 2020 12:25:11 -0500 Message-Id: <20201104172512.2381656-7-ehabkost@redhat.com> In-Reply-To: <20201104172512.2381656-1-ehabkost@redhat.com> References: <20201104172512.2381656-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce a FIELD_PTR macro that will ensure the size of the area we are accessing has the correct size, and will return a pointer of the correct type. Signed-off-by: Eduardo Habkost --- Cc: Stefan Berger Cc: Stefano Stabellini Cc: Anthony Perard Cc: Paul Durrant Cc: Kevin Wolf Cc: Max Reitz Cc: Paolo Bonzini Cc: "Daniel P. Berrangé" Cc: Eduardo Habkost Cc: Cornelia Huck Cc: Thomas Huth Cc: Halil Pasic Cc: Christian Borntraeger Cc: Richard Henderson Cc: David Hildenbrand Cc: Matthew Rosato Cc: Alex Williamson Cc: qemu-devel@nongnu.org Cc: xen-devel@lists.xenproject.org Cc: qemu-block@nongnu.org Cc: qemu-s390x@nongnu.org --- include/qom/field-property.h | 21 ++++++++++- backends/tpm/tpm_util.c | 6 ++-- hw/block/xen-block.c | 4 +-- hw/core/qdev-properties-system.c | 50 +++++++++++++------------- hw/s390x/css.c | 4 +-- hw/s390x/s390-pci-bus.c | 4 +-- hw/vfio/pci-quirks.c | 4 +-- qom/field-property.c | 3 +- qom/property-types.c | 60 +++++++++++++++++--------------- 9 files changed, 89 insertions(+), 67 deletions(-) diff --git a/include/qom/field-property.h b/include/qom/field-property.h index 1d3bf9699b..58baaca160 100644 --- a/include/qom/field-property.h +++ b/include/qom/field-property.h @@ -125,6 +125,25 @@ object_class_property_add_field(ObjectClass *oc, const char *name, Property *prop, ObjectPropertyAllowSet allow_set); -void *object_field_prop_ptr(Object *obj, Property *prop); +/** + * object_field_prop_ptr: Get pointer to property field + * @obj: the object instance + * @prop: field property definition + * @expected_size: expected size of struct field + * + * Don't use this function directly, use the FIELD_PTR() macro instead. + */ +void *object_field_prop_ptr(Object *obj, Property *prop, size_t expected_size); + +/** + * FIELD_PTR: Get pointer to struct field for property + * + * This returns a pointer to type @type, pointing to the struct + * field containing the property value. + * + * @type must match the expected type for the property. + */ +#define FIELD_PTR(obj, prop, type) \ + ((type *)object_field_prop_ptr((obj), (prop), sizeof(type))) #endif diff --git a/backends/tpm/tpm_util.c b/backends/tpm/tpm_util.c index 556e21388c..da80379404 100644 --- a/backends/tpm/tpm_util.c +++ b/backends/tpm/tpm_util.c @@ -35,7 +35,7 @@ static void get_tpm(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - TPMBackend **be = object_field_prop_ptr(obj, prop); + TPMBackend **be = FIELD_PTR(obj, prop, TPMBackend *); char *p; p = g_strdup(*be ? (*be)->id : ""); @@ -46,7 +46,7 @@ static void get_tpm(Object *obj, Visitor *v, const char *name, static void set_tpm(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - TPMBackend *s, **be = object_field_prop_ptr(obj, prop); + TPMBackend *s, **be = FIELD_PTR(obj, prop, TPMBackend *); char *str; if (!visit_type_str(v, name, &str, errp)) { @@ -65,7 +65,7 @@ static void set_tpm(Object *obj, Visitor *v, const char *name, static void release_tpm(Object *obj, const char *name, Property *prop) { - TPMBackend **be = object_field_prop_ptr(obj, prop); + TPMBackend **be = FIELD_PTR(obj, prop, TPMBackend *); if (*be) { tpm_backend_reset(*be); diff --git a/hw/block/xen-block.c b/hw/block/xen-block.c index c1ee634639..390bf417ab 100644 --- a/hw/block/xen-block.c +++ b/hw/block/xen-block.c @@ -335,7 +335,7 @@ static char *disk_to_vbd_name(unsigned int disk) static void xen_block_get_vdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - XenBlockVdev *vdev = object_field_prop_ptr(obj, prop); + XenBlockVdev *vdev = FIELD_PTR(obj, prop, XenBlockVdev); char *str; switch (vdev->type) { @@ -394,7 +394,7 @@ static int vbd_name_to_disk(const char *name, const char **endp, static void xen_block_set_vdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - XenBlockVdev *vdev = object_field_prop_ptr(obj, prop); + XenBlockVdev *vdev = FIELD_PTR(obj, prop, XenBlockVdev); char *str, *p; const char *end; diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c index 2fdd5863bb..1ec64514b9 100644 --- a/hw/core/qdev-properties-system.c +++ b/hw/core/qdev-properties-system.c @@ -61,7 +61,7 @@ static bool check_prop_still_unset(Object *obj, const char *name, static void get_drive(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - void **ptr = object_field_prop_ptr(obj, prop); + void **ptr = FIELD_PTR(obj, prop, void *); const char *value; char *p; @@ -87,7 +87,7 @@ static void set_drive_helper(Object *obj, Visitor *v, const char *name, { DeviceState *dev = DEVICE(obj); Property *prop = opaque; - void **ptr = object_field_prop_ptr(obj, prop); + void **ptr = FIELD_PTR(obj, prop, void *); char *str; BlockBackend *blk; bool blk_created = false; @@ -179,7 +179,7 @@ static void set_drive_iothread(Object *obj, Visitor *v, const char *name, static void release_drive(Object *obj, const char *name, Property *prop) { DeviceState *dev = DEVICE(obj); - BlockBackend **ptr = object_field_prop_ptr(obj, prop); + BlockBackend **ptr = FIELD_PTR(obj, prop, BlockBackend *); if (*ptr) { AioContext *ctx = blk_get_aio_context(*ptr); @@ -212,7 +212,7 @@ const PropertyInfo qdev_prop_drive_iothread = { static void get_chr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); char *p; p = g_strdup(be->chr && be->chr->label ? be->chr->label : ""); @@ -223,7 +223,7 @@ static void get_chr(Object *obj, Visitor *v, const char *name, static void set_chr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); Chardev *s; char *str; @@ -258,7 +258,7 @@ static void set_chr(Object *obj, Visitor *v, const char *name, static void release_chr(Object *obj, const char *name, Property *prop) { - CharBackend *be = object_field_prop_ptr(obj, prop); + CharBackend *be = FIELD_PTR(obj, prop, CharBackend); qemu_chr_fe_deinit(be, false); } @@ -281,7 +281,7 @@ const PropertyInfo qdev_prop_chr = { static void get_mac(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - MACAddr *mac = object_field_prop_ptr(obj, prop); + MACAddr *mac = FIELD_PTR(obj, prop, MACAddr); char buffer[2 * 6 + 5 + 1]; char *p = buffer; @@ -295,7 +295,7 @@ static void get_mac(Object *obj, Visitor *v, const char *name, static void set_mac(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - MACAddr *mac = object_field_prop_ptr(obj, prop); + MACAddr *mac = FIELD_PTR(obj, prop, MACAddr); int i, pos; char *str; const char *p; @@ -356,7 +356,7 @@ void qdev_prop_set_macaddr(DeviceState *dev, const char *name, static void get_netdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); + NICPeers *peers_ptr = FIELD_PTR(obj, prop, NICPeers); char *p = g_strdup(peers_ptr->ncs[0] ? peers_ptr->ncs[0]->name : ""); visit_type_str(v, name, &p, errp); @@ -366,7 +366,7 @@ static void get_netdev(Object *obj, Visitor *v, const char *name, static void set_netdev(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - NICPeers *peers_ptr = object_field_prop_ptr(obj, prop); + NICPeers *peers_ptr = FIELD_PTR(obj, prop, NICPeers); NetClientState **ncs = peers_ptr->ncs; NetClientState *peers[MAX_QUEUE_NUM]; int queues, err = 0, i = 0; @@ -427,7 +427,7 @@ const PropertyInfo qdev_prop_netdev = { static void get_audiodev(Object *obj, Visitor *v, const char* name, Property *prop, Error **errp) { - QEMUSoundCard *card = object_field_prop_ptr(obj, prop); + QEMUSoundCard *card = FIELD_PTR(obj, prop, QEMUSoundCard); char *p = g_strdup(audio_get_id(card)); visit_type_str(v, name, &p, errp); @@ -437,7 +437,7 @@ static void get_audiodev(Object *obj, Visitor *v, const char* name, static void set_audiodev(Object *obj, Visitor *v, const char* name, Property *prop, Error **errp) { - QEMUSoundCard *card = object_field_prop_ptr(obj, prop); + QEMUSoundCard *card = FIELD_PTR(obj, prop, QEMUSoundCard); AudioState *state; int err = 0; char *str; @@ -538,7 +538,7 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { DeviceState *dev = DEVICE(obj); - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value; Error *local_err = NULL; @@ -625,7 +625,7 @@ const PropertyInfo qdev_prop_multifd_compression = { static void get_reserved_region(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - ReservedRegion *rr = object_field_prop_ptr(obj, prop); + ReservedRegion *rr = FIELD_PTR(obj, prop, ReservedRegion); char buffer[64]; char *p = buffer; int rc; @@ -640,7 +640,7 @@ static void get_reserved_region(Object *obj, Visitor *v, const char *name, static void set_reserved_region(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - ReservedRegion *rr = object_field_prop_ptr(obj, prop); + ReservedRegion *rr = FIELD_PTR(obj, prop, ReservedRegion); Error *local_err = NULL; const char *endptr; char *str; @@ -701,7 +701,7 @@ const PropertyInfo qdev_prop_reserved_region = { static void set_pci_devfn(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t value, *ptr = object_field_prop_ptr(obj, prop); + int32_t value, *ptr = FIELD_PTR(obj, prop, int32_t); unsigned int slot, fn, n; char *str; @@ -739,7 +739,7 @@ invalid: static int print_pci_devfn(Object *obj, Property *prop, char *dest, size_t len) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); if (*ptr == -1) { return snprintf(dest, len, ""); @@ -762,7 +762,7 @@ const PropertyInfo qdev_prop_pci_devfn = { static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); + PCIHostDeviceAddress *addr = FIELD_PTR(obj, prop, PCIHostDeviceAddress); char buffer[] = "ffff:ff:ff.f"; char *p = buffer; int rc = 0; @@ -787,7 +787,7 @@ static void get_pci_host_devaddr(Object *obj, Visitor *v, const char *name, static void set_pci_host_devaddr(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIHostDeviceAddress *addr = object_field_prop_ptr(obj, prop); + PCIHostDeviceAddress *addr = FIELD_PTR(obj, prop, PCIHostDeviceAddress); char *str, *p; const char *e; unsigned long val; @@ -875,7 +875,7 @@ const PropertyInfo qdev_prop_off_auto_pcibar = { static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); + PCIExpLinkSpeed *p = FIELD_PTR(obj, prop, PCIExpLinkSpeed); int speed; switch (*p) { @@ -902,7 +902,7 @@ static void get_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, static void set_prop_pcielinkspeed(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkSpeed *p = object_field_prop_ptr(obj, prop); + PCIExpLinkSpeed *p = FIELD_PTR(obj, prop, PCIExpLinkSpeed); int speed; if (!visit_type_enum(v, name, &speed, prop->info->enum_table, @@ -943,7 +943,7 @@ const PropertyInfo qdev_prop_pcie_link_speed = { static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); + PCIExpLinkWidth *p = FIELD_PTR(obj, prop, PCIExpLinkWidth); int width; switch (*p) { @@ -979,7 +979,7 @@ static void get_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, static void set_prop_pcielinkwidth(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - PCIExpLinkWidth *p = object_field_prop_ptr(obj, prop); + PCIExpLinkWidth *p = FIELD_PTR(obj, prop, PCIExpLinkWidth); int width; if (!visit_type_enum(v, name, &width, prop->info->enum_table, @@ -1029,7 +1029,7 @@ const PropertyInfo qdev_prop_pcie_link_width = { static void get_uuid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - QemuUUID *uuid = object_field_prop_ptr(obj, prop); + QemuUUID *uuid = FIELD_PTR(obj, prop, QemuUUID); char buffer[UUID_FMT_LEN + 1]; char *p = buffer; @@ -1043,7 +1043,7 @@ static void get_uuid(Object *obj, Visitor *v, const char *name, static void set_uuid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - QemuUUID *uuid = object_field_prop_ptr(obj, prop); + QemuUUID *uuid = FIELD_PTR(obj, prop, QemuUUID); char *str; if (!visit_type_str(v, name, &str, errp)) { diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 1400d80689..5a38919a05 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -2343,7 +2343,7 @@ void css_reset(void) static void get_css_devid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CssDevId *dev_id = object_field_prop_ptr(obj, prop); + CssDevId *dev_id = FIELD_PTR(obj, prop, CssDevId); char buffer[] = "xx.x.xxxx"; char *p = buffer; int r; @@ -2371,7 +2371,7 @@ static void get_css_devid(Object *obj, Visitor *v, const char *name, static void set_css_devid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - CssDevId *dev_id = object_field_prop_ptr(obj, prop); + CssDevId *dev_id = FIELD_PTR(obj, prop, CssDevId); char *str; int num, n1, n2; unsigned int cssid, ssid, devid; diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index a29bba17b4..8e38787c99 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -1322,7 +1322,7 @@ static void s390_pci_device_reset(DeviceState *dev) static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -1331,7 +1331,7 @@ static void s390_pci_set_fid(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { S390PCIBusDevice *zpci = S390_PCI_DEVICE(obj); - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); if (!visit_type_uint32(v, name, ptr, errp)) { return; diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c index 34f5f5dce2..93fb507ec4 100644 --- a/hw/vfio/pci-quirks.c +++ b/hw/vfio/pci-quirks.c @@ -1488,7 +1488,7 @@ static void get_nv_gpudirect_clique_id(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -1497,7 +1497,7 @@ static void set_nv_gpudirect_clique_id(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t value, *ptr = object_field_prop_ptr(obj, prop); + uint8_t value, *ptr = FIELD_PTR(obj, prop, uint8_t); if (!visit_type_uint8(v, name, &value, errp)) { return; diff --git a/qom/field-property.c b/qom/field-property.c index 865d4929a3..0932a799de 100644 --- a/qom/field-property.c +++ b/qom/field-property.c @@ -5,10 +5,11 @@ #include "qom/field-property.h" #include "qom/field-property-internal.h" -void *object_field_prop_ptr(Object *obj, Property *prop) +void *object_field_prop_ptr(Object *obj, Property *prop, size_t expected_size) { void *ptr = obj; ptr += prop->offset; + assert(prop->size == expected_size); return ptr; } diff --git a/qom/property-types.c b/qom/property-types.c index 0182a73e38..e01f5a9fef 100644 --- a/qom/property-types.c +++ b/qom/property-types.c @@ -10,7 +10,7 @@ void field_prop_get_enum(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int *ptr = object_field_prop_ptr(obj, prop); + int *ptr = FIELD_PTR(obj, prop, int); visit_type_enum(v, name, ptr, prop->info->enum_table, errp); } @@ -18,7 +18,7 @@ void field_prop_get_enum(Object *obj, Visitor *v, const char *name, void field_prop_set_enum(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int *ptr = object_field_prop_ptr(obj, prop); + int *ptr = FIELD_PTR(obj, prop, int); visit_type_enum(v, name, ptr, prop->info->enum_table, errp); } @@ -47,7 +47,7 @@ static uint32_t qdev_get_prop_mask(Property *prop) static void bit_prop_set(Object *obj, Property *props, bool val) { - uint32_t *p = object_field_prop_ptr(obj, props); + uint32_t *p = FIELD_PTR(obj, props, uint32_t); uint32_t mask = qdev_get_prop_mask(props); if (val) { *p |= mask; @@ -59,7 +59,7 @@ static void bit_prop_set(Object *obj, Property *props, bool val) static void prop_get_bit(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *p = object_field_prop_ptr(obj, prop); + uint32_t *p = FIELD_PTR(obj, prop, uint32_t); bool value = (*p & qdev_get_prop_mask(prop)) != 0; visit_type_bool(v, name, &value, errp); @@ -99,7 +99,7 @@ static uint64_t qdev_get_prop_mask64(Property *prop) static void bit64_prop_set(Object *obj, Property *props, bool val) { - uint64_t *p = object_field_prop_ptr(obj, props); + uint64_t *p = FIELD_PTR(obj, props, uint64_t); uint64_t mask = qdev_get_prop_mask64(props); if (val) { *p |= mask; @@ -111,7 +111,7 @@ static void bit64_prop_set(Object *obj, Property *props, bool val) static void prop_get_bit64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *p = object_field_prop_ptr(obj, prop); + uint64_t *p = FIELD_PTR(obj, prop, uint64_t); bool value = (*p & qdev_get_prop_mask64(prop)) != 0; visit_type_bool(v, name, &value, errp); @@ -141,7 +141,7 @@ const PropertyInfo prop_info_bit64 = { static void get_bool(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - bool *ptr = object_field_prop_ptr(obj, prop); + bool *ptr = FIELD_PTR(obj, prop, bool); visit_type_bool(v, name, ptr, errp); } @@ -149,7 +149,7 @@ static void get_bool(Object *obj, Visitor *v, const char *name, static void set_bool(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - bool *ptr = object_field_prop_ptr(obj, prop); + bool *ptr = FIELD_PTR(obj, prop, bool); visit_type_bool(v, name, ptr, errp); } @@ -166,7 +166,7 @@ const PropertyInfo prop_info_bool = { static void get_uint8(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -174,7 +174,7 @@ static void get_uint8(Object *obj, Visitor *v, const char *name, static void set_uint8(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint8_t *ptr = object_field_prop_ptr(obj, prop); + uint8_t *ptr = FIELD_PTR(obj, prop, uint8_t); visit_type_uint8(v, name, ptr, errp); } @@ -203,7 +203,7 @@ const PropertyInfo prop_info_uint8 = { static void get_uint16(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint16_t *ptr = object_field_prop_ptr(obj, prop); + uint16_t *ptr = FIELD_PTR(obj, prop, uint16_t); visit_type_uint16(v, name, ptr, errp); } @@ -211,7 +211,7 @@ static void get_uint16(Object *obj, Visitor *v, const char *name, static void set_uint16(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint16_t *ptr = object_field_prop_ptr(obj, prop); + uint16_t *ptr = FIELD_PTR(obj, prop, uint16_t); visit_type_uint16(v, name, ptr, errp); } @@ -228,7 +228,7 @@ const PropertyInfo prop_info_uint16 = { static void get_uint32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -236,7 +236,7 @@ static void get_uint32(Object *obj, Visitor *v, const char *name, static void set_uint32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); visit_type_uint32(v, name, ptr, errp); } @@ -244,7 +244,7 @@ static void set_uint32(Object *obj, Visitor *v, const char *name, void field_prop_get_int32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); visit_type_int32(v, name, ptr, errp); } @@ -252,7 +252,7 @@ void field_prop_get_int32(Object *obj, Visitor *v, const char *name, static void set_int32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int32_t *ptr = object_field_prop_ptr(obj, prop); + int32_t *ptr = FIELD_PTR(obj, prop, int32_t); visit_type_int32(v, name, ptr, errp); } @@ -276,7 +276,7 @@ const PropertyInfo prop_info_int32 = { static void get_uint64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_uint64(v, name, ptr, errp); } @@ -284,7 +284,7 @@ static void get_uint64(Object *obj, Visitor *v, const char *name, static void set_uint64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_uint64(v, name, ptr, errp); } @@ -292,7 +292,7 @@ static void set_uint64(Object *obj, Visitor *v, const char *name, static void get_int64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int64_t *ptr = object_field_prop_ptr(obj, prop); + int64_t *ptr = FIELD_PTR(obj, prop, int64_t); visit_type_int64(v, name, ptr, errp); } @@ -300,7 +300,7 @@ static void get_int64(Object *obj, Visitor *v, const char *name, static void set_int64(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - int64_t *ptr = object_field_prop_ptr(obj, prop); + int64_t *ptr = FIELD_PTR(obj, prop, int64_t); visit_type_int64(v, name, ptr, errp); } @@ -323,13 +323,14 @@ const PropertyInfo prop_info_int64 = { static void release_string(Object *obj, const char *name, Property *prop) { - g_free(*(char **)object_field_prop_ptr(obj, prop)); + char **ptr = FIELD_PTR(obj, prop, char *); + g_free(*ptr); } static void get_string(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - char **ptr = object_field_prop_ptr(obj, prop); + char **ptr = FIELD_PTR(obj, prop, char *); if (!*ptr) { char *str = (char *)""; @@ -342,7 +343,7 @@ static void get_string(Object *obj, Visitor *v, const char *name, static void set_string(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - char **ptr = object_field_prop_ptr(obj, prop); + char **ptr = FIELD_PTR(obj, prop, char *); char *str; if (!visit_type_str(v, name, &str, errp)) { @@ -375,7 +376,7 @@ const PropertyInfo prop_info_on_off_auto = { void field_prop_get_size32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value = *ptr; visit_type_size(v, name, &value, errp); @@ -384,7 +385,7 @@ void field_prop_get_size32(Object *obj, Visitor *v, const char *name, static void set_size32(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint32_t *ptr = object_field_prop_ptr(obj, prop); + uint32_t *ptr = FIELD_PTR(obj, prop, uint32_t); uint64_t value; if (!visit_type_size(v, name, &value, errp)) { @@ -415,7 +416,7 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { ObjectProperty *op = object_property_find_err(obj, name, &error_abort); - uint32_t *alenptr = object_field_prop_ptr(obj, prop); + uint32_t *alenptr = FIELD_PTR(obj, prop, uint32_t); void **arrayptr = (void *)obj + prop->arrayoffset; void *eltptr; const char *arrayname; @@ -455,7 +456,8 @@ static void set_prop_arraylen(Object *obj, Visitor *v, const char *name, */ arrayprop->offset = eltptr - (void *)obj; arrayprop->size = prop->arrayfieldsize; - assert(object_field_prop_ptr(obj, arrayprop) == eltptr); + assert(object_field_prop_ptr(obj, arrayprop, + prop->arrayfieldsize) == eltptr); object_property_add_field(obj, propname, arrayprop, op->allow_set); } } @@ -472,7 +474,7 @@ const PropertyInfo prop_info_arraylen = { static void get_size(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_size(v, name, ptr, errp); } @@ -480,7 +482,7 @@ static void get_size(Object *obj, Visitor *v, const char *name, static void set_size(Object *obj, Visitor *v, const char *name, Property *prop, Error **errp) { - uint64_t *ptr = object_field_prop_ptr(obj, prop); + uint64_t *ptr = FIELD_PTR(obj, prop, uint64_t); visit_type_size(v, name, ptr, errp); } -- 2.28.0