From patchwork Tue Jun 28 09:01:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Lieven X-Patchwork-Id: 9202337 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 10F6A6075F for ; Tue, 28 Jun 2016 09:16:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 005FA2793D for ; Tue, 28 Jun 2016 09:16:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E952E285D1; Tue, 28 Jun 2016 09:16:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 48F0C2793D for ; Tue, 28 Jun 2016 09:16:36 +0000 (UTC) Received: from localhost ([::1]:35241 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bHp8D-00075X-7e for patchwork-qemu-devel@patchwork.kernel.org; Tue, 28 Jun 2016 05:16:33 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34779) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bHouJ-0006oE-Rv for qemu-devel@nongnu.org; Tue, 28 Jun 2016 05:02:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bHouI-0003Nr-KY for qemu-devel@nongnu.org; Tue, 28 Jun 2016 05:02:11 -0400 Received: from mx-v6.kamp.de ([2a02:248:0:51::16]:59022 helo=mx01.kamp.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bHouI-0003NY-B4 for qemu-devel@nongnu.org; Tue, 28 Jun 2016 05:02:10 -0400 Received: (qmail 26958 invoked by uid 89); 28 Jun 2016 09:02:09 -0000 Received: from [195.62.97.28] by client-16-kamp (envelope-from , uid 89) with qmail-scanner-2010/03/19-MF (clamdscan: 0.99.2/21804. hbedv: 8.3.40.44/7.12.99.34. avast: 1.2.2/16062800. spamassassin: 3.4.1. 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Processed in 0.262332 secs); 28 Jun 2016 09:02:09 -0000 Received: from smtp.kamp.de (HELO submission.kamp.de) ([195.62.97.28]) by mx01.kamp.de with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted); 28 Jun 2016 09:02:06 -0000 X-GL_Whitelist: yes Received: (qmail 29664 invoked from network); 28 Jun 2016 09:01:47 -0000 Received: from lieven-pc.kamp-intra.net (HELO lieven-pc) (relay@kamp.de@::ffff:172.21.12.60) by submission.kamp.de with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted) ESMTPA; 28 Jun 2016 09:01:47 -0000 Received: by lieven-pc (Postfix, from userid 1000) id 53E5D208D8; Tue, 28 Jun 2016 11:01:46 +0200 (CEST) From: Peter Lieven To: qemu-devel@nongnu.org Date: Tue, 28 Jun 2016 11:01:32 +0200 Message-Id: <1467104499-27517-9-git-send-email-pl@kamp.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1467104499-27517-1-git-send-email-pl@kamp.de> References: <1467104499-27517-1-git-send-email-pl@kamp.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2a02:248:0:51::16 Subject: [Qemu-devel] [PATCH 08/15] virtio: use mmap for VirtQueue 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: kwolf@redhat.com, peter.maydell@linaro.org, mst@redhat.com, Peter Lieven , dgilbert@redhat.com, mreitz@redhat.com, kraxel@redhat.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP a VirtQueue is approx. 128kB in size. Signed-off-by: Peter Lieven --- hw/virtio/virtio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 7ed06ea..bf4bc4a 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -20,6 +20,7 @@ #include "qemu/error-report.h" #include "hw/virtio/virtio.h" #include "qemu/atomic.h" +#include "qemu/mmap-alloc.h" #include "hw/virtio/virtio-bus.h" #include "migration/migration.h" #include "hw/virtio/virtio-access.h" @@ -1612,7 +1613,7 @@ void virtio_cleanup(VirtIODevice *vdev) { qemu_del_vm_change_state_handler(vdev->vmstate); g_free(vdev->config); - g_free(vdev->vq); + qemu_anon_ram_munmap(vdev->vq, sizeof(VirtQueue) * VIRTIO_QUEUE_MAX); g_free(vdev->vector_queues); } @@ -1666,7 +1667,7 @@ void virtio_init(VirtIODevice *vdev, const char *name, vdev->isr = 0; vdev->queue_sel = 0; vdev->config_vector = VIRTIO_NO_VECTOR; - vdev->vq = g_malloc0(sizeof(VirtQueue) * VIRTIO_QUEUE_MAX); + vdev->vq = qemu_anon_ram_mmap(sizeof(VirtQueue) * VIRTIO_QUEUE_MAX); vdev->vm_running = runstate_is_running(); for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { vdev->vq[i].vector = VIRTIO_NO_VECTOR;