From nobody Tue Nov 18 09:19:06 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1609395180; cv=none; d=zohomail.com; s=zohoarc; b=XjFOJtF7r01/yehu8ROjvbtF0RbMc1tinvamCdbhHb22CJy+P8tndNb279E29IE5DwPMgiKnCk1u+U15Dt1qwEb2TIMnu7p/m+MtFtRpWsnwYKiDT5EDaXhmBlAE8S/c32KdwugPp0wDW4kRzOl5pJZP07qJhGnx1NCyJt4HPgQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1609395180; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=dR7vno4cs3okJeTlKu89jE9DSf8giCcY+XInpIXXUec=; b=iwHRwhnyM/c6KrEiv5OVVXB0HsH3eBfP0hPTLulz4EzXr1kJ4J04uOR7vPHPhracrRtm31I7nurqDM4KiZD08+5DX3/3gdOAeOI/Z44DZlEREJw9J+CPzPi42mY/KOTnZ2Ll/G/M7gsD3QH1kMe/2k5kFz/ENM7N/hnZdeorOlw= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1609395180587902.950798041613; Wed, 30 Dec 2020 22:13:00 -0800 (PST) Received: from localhost ([::1]:54088 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kurCk-0004lV-Ox for importer@patchew.org; Thu, 31 Dec 2020 01:12:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33954) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kurAx-0003Vr-3j; Thu, 31 Dec 2020 01:11:07 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:2838) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kurAr-0005cV-J8; Thu, 31 Dec 2020 01:11:06 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4D5yRX5wL0zkycB; Thu, 31 Dec 2020 14:09:44 +0800 (CST) Received: from DESKTOP-EDHIELA.china.huawei.com (10.174.187.50) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.498.0; Thu, 31 Dec 2020 14:10:40 +0800 From: Jinhao Gao To: , Subject: [PATCH v3 1/3] spapr_pci: Fix memory leak of vmstate_spapr_pci Date: Thu, 31 Dec 2020 14:10:18 +0800 Message-ID: <20201231061020.828-2-gaojinhao@huawei.com> X-Mailer: git-send-email 2.29.2.windows.2 In-Reply-To: <20201231061020.828-1-gaojinhao@huawei.com> References: <20201231061020.828-1-gaojinhao@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.174.187.50] X-CFilter-Loop: Reflected Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=45.249.212.190; envelope-from=gaojinhao@huawei.com; helo=szxga04-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, 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: Stefan Berger , Jason Wang , "Michael S . Tsirkin" , Greg Kurz , "Dr . David Alan Gilbert" , Juan Quintela , wanghaibin.wang@huawei.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , zhukeqian1@huawei.com, David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" When VM migrate VMState of spapr_pci, the field(msi_devs) of spapr_pci having a flag of VMS_ALLOC need to allocate memory. If the src doesn't free memory of msi_devs in SaveStateEntry of spapr_pci after QEMUFile save VMState of spapr_pci, it may result in memory leak of msi_devs. We add the post_save func to free memory, which prevents memory leak. Reported-by: Euler Robot Signed-off-by: Jinhao Gao Acked-by: David Gibson Reviewed-by: Michael S. Tsirkin --- hw/ppc/spapr_pci.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 76d7c91e9c..1b2b940606 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -2173,6 +2173,16 @@ static int spapr_pci_pre_save(void *opaque) return 0; } =20 +static int spapr_pci_post_save(void *opaque) +{ + SpaprPhbState *sphb =3D opaque; + + g_free(sphb->msi_devs); + sphb->msi_devs =3D NULL; + sphb->msi_devs_num =3D 0; + return 0; +} + static int spapr_pci_post_load(void *opaque, int version_id) { SpaprPhbState *sphb =3D opaque; @@ -2205,6 +2215,7 @@ static const VMStateDescription vmstate_spapr_pci =3D= { .version_id =3D 2, .minimum_version_id =3D 2, .pre_save =3D spapr_pci_pre_save, + .post_save =3D spapr_pci_post_save, .post_load =3D spapr_pci_post_load, .fields =3D (VMStateField[]) { VMSTATE_UINT64_EQUAL(buid, SpaprPhbState, NULL), --=20 2.23.0