From patchwork Fri Oct 21 06:48:19 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liang Li X-Patchwork-Id: 9388131 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 5EEA5607D0 for ; Fri, 21 Oct 2016 07:01:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4F35929E42 for ; Fri, 21 Oct 2016 07:01:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 43F8829E43; Fri, 21 Oct 2016 07:01:23 +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 B9C9229E3C for ; Fri, 21 Oct 2016 07:01:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754783AbcJUHBK (ORCPT ); Fri, 21 Oct 2016 03:01:10 -0400 Received: from mga14.intel.com ([192.55.52.115]:43007 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754789AbcJUHBF (ORCPT ); Fri, 21 Oct 2016 03:01:05 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 21 Oct 2016 00:00:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,375,1473145200"; d="scan'208";a="1057010749" Received: from ll.sh.intel.com (HELO localhost) ([10.239.13.123]) by fmsmga001.fm.intel.com with ESMTP; 21 Oct 2016 00:00:43 -0700 From: Liang Li To: qemu-devel@nongnu.org Cc: mst@redhat.com, pbonzini@redhat.com, quintela@redhat.com, amit.shah@redhat.com, kvm@vger.kernel.org, dgilbert@redhat.com, thuth@redhat.com, virtio-dev@lists.oasis-open.org, dave.hansen@intel.com, Liang Li Subject: [PATCH qemu v3 1/6] virtio-balloon: update linux head file Date: Fri, 21 Oct 2016 14:48:19 +0800 Message-Id: <1477032504-12745-2-git-send-email-liang.z.li@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1477032504-12745-1-git-send-email-liang.z.li@intel.com> References: <1477032504-12745-1-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 new feature bit definition for virtio balloon and the page bitmap header, request header struct to keep consistent with kernel side. Signed-off-by: Liang Li --- include/standard-headers/linux/virtio_balloon.h | 41 +++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h index 9d06ccd..797a868 100644 --- a/include/standard-headers/linux/virtio_balloon.h +++ b/include/standard-headers/linux/virtio_balloon.h @@ -34,6 +34,8 @@ #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_BITMAP 3 /* Send page info with bitmap */ +#define VIRTIO_BALLOON_F_MISC_VQ 4 /* Misc info virtqueue */ /* Size of a PFN in the balloon interface. */ #define VIRTIO_BALLOON_PFN_SHIFT 12 @@ -82,4 +84,43 @@ struct virtio_balloon_stat { __virtio64 val; } QEMU_PACKED; +/* Page bitmap header structure */ +struct balloon_bmap_hdr { + /* Used to distinguish different request */ + __virtio16 cmd; + /* Shift width of page in the bitmap */ + __virtio16 page_shift; + /* flag used to identify different status */ + __virtio16 flag; + /* Reserved */ + __virtio16 reserved; + /* ID of the request */ + __virtio64 req_id; + /* The pfn of 0 bit in the bitmap */ + __virtio64 start_pfn; + /* The length of the bitmap, in bytes */ + __virtio64 bmap_len; +}; + +enum balloon_req_id { + /* Get free pages information */ + BALLOON_GET_FREE_PAGES, +}; + +enum balloon_flag { + /* Have more data for a request */ + BALLOON_FLAG_CONT, + /* No more data for a request */ + BALLOON_FLAG_DONE, +}; + +struct balloon_req_hdr { + /* Used to distinguish different request */ + __virtio16 cmd; + /* Reserved */ + __virtio16 reserved[3]; + /* Request parameter */ + __virtio64 param; +}; + #endif /* _LINUX_VIRTIO_BALLOON_H */