From patchwork Tue Dec 18 20:16:53 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Capitulino X-Patchwork-Id: 207197 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 857172C0093 for ; Wed, 19 Dec 2012 07:17:52 +1100 (EST) Received: from localhost ([::1]:42026 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tl3bq-0004zD-9H for incoming@patchwork.ozlabs.org; Tue, 18 Dec 2012 15:17:50 -0500 Received: from eggs.gnu.org ([208.118.235.92]:38132) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tl3b9-0003Yb-MR for qemu-devel@nongnu.org; Tue, 18 Dec 2012 15:17:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tl3b7-0004bs-TG for qemu-devel@nongnu.org; Tue, 18 Dec 2012 15:17:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:10943) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tl3b7-0004bV-L6 for qemu-devel@nongnu.org; Tue, 18 Dec 2012 15:17:05 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id qBIKH3WR023308 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 18 Dec 2012 15:17:03 -0500 Received: from localhost (ovpn-113-93.phx2.redhat.com [10.3.113.93]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id qBIKH2xI023527; Tue, 18 Dec 2012 15:17:03 -0500 From: Luiz Capitulino To: qemu-devel@nongnu.org Date: Tue, 18 Dec 2012 18:16:53 -0200 Message-Id: <1355861815-2607-2-git-send-email-lcapitulino@redhat.com> In-Reply-To: <1355861815-2607-1-git-send-email-lcapitulino@redhat.com> References: <1355861815-2607-1-git-send-email-lcapitulino@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: aquini@redhat.com, mst@redhat.com, anton.vorontsov@linaro.org, agl@us.ibm.com, amit.shah@redhat.com Subject: [Qemu-devel] [RFC 1/3] virtio-balloon: add guest_get_actual_ram() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org A future commit will also want to use this. Signed-off-by: Luiz Capitulino --- hw/virtio-balloon.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/hw/virtio-balloon.c b/hw/virtio-balloon.c index dd1a650..03248df 100644 --- a/hw/virtio-balloon.c +++ b/hw/virtio-balloon.c @@ -161,6 +161,11 @@ static uint32_t virtio_balloon_get_features(VirtIODevice *vdev, uint32_t f) return f; } +static ram_addr_t guest_get_actual_ram(const VirtIOBalloon *s) +{ + return ram_size - ((uint64_t) s->actual << VIRTIO_BALLOON_PFN_SHIFT); +} + static void virtio_balloon_stat(void *opaque, BalloonInfo *info) { VirtIOBalloon *dev = opaque; @@ -186,8 +191,7 @@ static void virtio_balloon_stat(void *opaque, BalloonInfo *info) */ reset_stats(dev); - info->actual = ram_size - ((uint64_t) dev->actual << - VIRTIO_BALLOON_PFN_SHIFT); + info->actual = guest_get_actual_ram(dev); } static void virtio_balloon_to_target(void *opaque, ram_addr_t target)