From patchwork Wed Jan 11 08:48:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liang Li X-Patchwork-Id: 9509517 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 B72546075C for ; Wed, 11 Jan 2017 08:56:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC1B62859E for ; Wed, 11 Jan 2017 08:56:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A0A28285BA; Wed, 11 Jan 2017 08:56:13 +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 vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2BE392859E for ; Wed, 11 Jan 2017 08:56:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936715AbdAKI4K (ORCPT ); Wed, 11 Jan 2017 03:56:10 -0500 Received: from mga14.intel.com ([192.55.52.115]:35155 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936708AbdAKI4J (ORCPT ); Wed, 11 Jan 2017 03:56:09 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 11 Jan 2017 00:56:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,345,1477983600"; d="scan'208";a="807555858" Received: from ll.sh.intel.com (HELO localhost) ([10.239.13.123]) by FMSMGA003.fm.intel.com with ESMTP; 11 Jan 2017 00:56:06 -0800 From: Liang Li To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, mst@redhat.com, pbonzini@redhat.com, uintela@redhat.com, amit.shah@redhat.com, mtosatti@redhat.com, dgilbert@redhat.com, wei.w.wang@intel.com, dave.hansen@intel.com, Liang Li Subject: [PATCH v4 qemu 1/6] virtio-balloon: update linux head file Date: Wed, 11 Jan 2017 16:48:39 +0800 Message-Id: <1484124524-481-2-git-send-email-liang.z.li@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1484124524-481-1-git-send-email-liang.z.li@intel.com> References: <1484124524-481-1-git-send-email-liang.z.li@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Update the linux head file to keep consistent with kernel side. The new definition will be used in the following patches. Signed-off-by: Liang Li --- include/standard-headers/linux/virtio_balloon.h | 34 +++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h index 9d06ccd..c15d592 100644 --- a/include/standard-headers/linux/virtio_balloon.h +++ b/include/standard-headers/linux/virtio_balloon.h @@ -34,10 +34,15 @@ #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */ #define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory Stats virtqueue */ #define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */ +#define VIRTIO_BALLOON_F_PAGE_RANGE 3 /* Send page info with ranges */ +#define VIRTIO_BALLOON_F_HOST_REQ_VQ 4 /* Host request virtqueue */ /* Size of a PFN in the balloon interface. */ #define VIRTIO_BALLOON_PFN_SHIFT 12 +/* Bits width for the length of the pfn range */ +#define VIRTIO_BALLOON_NR_PFN_BITS 12 + struct virtio_balloon_config { /* Number of pages host wants Guest to give up. */ uint32_t num_pages; @@ -82,4 +87,33 @@ struct virtio_balloon_stat { __virtio64 val; } QEMU_PACKED; +/* Response header structure */ +struct virtio_balloon_resp_hdr { + uint64_t cmd : 8; /* Distinguish different requests type */ + uint64_t flag: 8; /* Mark status for a specific request type */ + uint64_t id : 16; /* Distinguish requests of a specific type */ + uint64_t data_len: 32; /* Length of the following data, in bytes */ +}; + +enum virtio_balloon_req_id { + /* Get unused page information */ + BALLOON_GET_UNUSED_PAGES, +}; + +enum virtio_balloon_flag { + /* Have more data for a request */ + BALLOON_FLAG_CONT, + /* No more data for a request */ + BALLOON_FLAG_DONE, +}; + +struct virtio_balloon_req_hdr { + /* Used to distinguish different requests */ + uint16_t cmd; + /* Reserved */ + uint16_t reserved[3]; + /* Request parameter */ + uint64_t param; +}; + #endif /* _LINUX_VIRTIO_BALLOON_H */