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: "Li, Liang Z" X-Patchwork-Id: 684926 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3t0cJk4h25z9s3s for ; Fri, 21 Oct 2016 18:10:30 +1100 (AEDT) Received: from localhost ([::1]:59164 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bxTyE-0008HO-L1 for incoming@patchwork.ozlabs.org; Fri, 21 Oct 2016 03:10:26 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42387) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bxTpE-0001oB-UG for qemu-devel@nongnu.org; Fri, 21 Oct 2016 03:01:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bxTpB-0008Ve-U8 for qemu-devel@nongnu.org; Fri, 21 Oct 2016 03:01:09 -0400 Received: from mga14.intel.com ([192.55.52.115]:37127) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1bxTpB-0008U4-Lc for qemu-devel@nongnu.org; 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 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> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.115 Subject: [Qemu-devel] [PATCH qemu v3 1/6] virtio-balloon: update linux head file 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: virtio-dev@lists.oasis-open.org, thuth@redhat.com, Liang Li , kvm@vger.kernel.org, quintela@redhat.com, mst@redhat.com, dgilbert@redhat.com, dave.hansen@intel.com, amit.shah@redhat.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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 */