From nobody Wed Nov 5 16:19:59 2025 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 1535557146503723.5864925571983; Wed, 29 Aug 2018 08:39:06 -0700 (PDT) Received: from localhost ([::1]:43624 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fv2Yj-0005my-9K for importer@patchew.org; Wed, 29 Aug 2018 11:39:05 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34920) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fv2WT-0004Qb-9S for qemu-devel@nongnu.org; Wed, 29 Aug 2018 11:36:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fv2WS-0001y2-CY for qemu-devel@nongnu.org; Wed, 29 Aug 2018 11:36:45 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:43960 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fv2WS-0001xn-5c for qemu-devel@nongnu.org; Wed, 29 Aug 2018 11:36:44 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B3B3840216E8; Wed, 29 Aug 2018 15:36:43 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-206.ams2.redhat.com [10.36.116.206]) by smtp.corp.redhat.com (Postfix) with ESMTP id AEEB1A9F06; Wed, 29 Aug 2018 15:36:41 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Wed, 29 Aug 2018 17:36:08 +0200 Message-Id: <20180829153624.12299-5-david@redhat.com> In-Reply-To: <20180829153624.12299-1-david@redhat.com> References: <20180829153624.12299-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 29 Aug 2018 15:36:43 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 29 Aug 2018 15:36:43 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'david@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v2 04/20] memory-device: get_region_size()/get_plugged_size() might fail 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: Pankaj Gupta , Eduardo Habkost , "Michael S . Tsirkin" , David Hildenbrand , "Dr . David Alan Gilbert" , Markus Armbruster , Paolo Bonzini , Igor Mammedov , Luiz Capitulino , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Let's properly forward the error, so errors from get_region_size() / get_plugged_size(), can be handled. Users right now call both functions after the device has been realized, which is guaranteed to no fail (we'll document this behavior in a follow-up patch). Signed-off-by: David Hildenbrand --- hw/mem/memory-device.c | 6 +++--- hw/mem/pc-dimm.c | 5 +++-- include/hw/mem/memory-device.h | 4 ++-- 3 files changed, 8 insertions(+), 7 deletions(-) diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c index 0d9892b715..d87599c280 100644 --- a/hw/mem/memory-device.c +++ b/hw/mem/memory-device.c @@ -60,7 +60,7 @@ static int memory_device_used_region_size(Object *obj, vo= id *opaque) const MemoryDeviceClass *mdc =3D MEMORY_DEVICE_GET_CLASS(obj); =20 if (dev->realized) { - *size +=3D mdc->get_region_size(md); + *size +=3D mdc->get_region_size(md, &error_abort); } } =20 @@ -167,7 +167,7 @@ uint64_t memory_device_get_free_addr(MachineState *ms, = const uint64_t *hint, uint64_t md_size, md_addr; =20 md_addr =3D mdc->get_addr(md); - md_size =3D mdc->get_region_size(md); + md_size =3D mdc->get_region_size(md, &error_abort); if (*errp) { goto out; } @@ -233,7 +233,7 @@ static int memory_device_plugged_size(Object *obj, void= *opaque) const MemoryDeviceClass *mdc =3D MEMORY_DEVICE_GET_CLASS(obj); =20 if (dev->realized) { - *size +=3D mdc->get_plugged_size(md); + *size +=3D mdc->get_plugged_size(md, &error_abort); } } =20 diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index fb6bcaedc4..4bf1a0acc9 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -236,14 +236,15 @@ static uint64_t pc_dimm_md_get_addr(const MemoryDevic= eState *md) return dimm->addr; } =20 -static uint64_t pc_dimm_md_get_region_size(const MemoryDeviceState *md) +static uint64_t pc_dimm_md_get_region_size(const MemoryDeviceState *md, + Error **errp) { /* dropping const here is fine as we don't touch the memory region */ PCDIMMDevice *dimm =3D PC_DIMM(md); const PCDIMMDeviceClass *ddc =3D PC_DIMM_GET_CLASS(md); MemoryRegion *mr; =20 - mr =3D ddc->get_memory_region(dimm, &error_abort); + mr =3D ddc->get_memory_region(dimm, errp); if (!mr) { return 0; } diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h index 2853b084b5..f02b229837 100644 --- a/include/hw/mem/memory-device.h +++ b/include/hw/mem/memory-device.h @@ -33,8 +33,8 @@ typedef struct MemoryDeviceClass { InterfaceClass parent_class; =20 uint64_t (*get_addr)(const MemoryDeviceState *md); - uint64_t (*get_plugged_size)(const MemoryDeviceState *md); - uint64_t (*get_region_size)(const MemoryDeviceState *md); + uint64_t (*get_plugged_size)(const MemoryDeviceState *md, Error **errp= ); + uint64_t (*get_region_size)(const MemoryDeviceState *md, Error **errp); void (*fill_device_info)(const MemoryDeviceState *md, MemoryDeviceInfo *info); } MemoryDeviceClass; --=20 2.17.1