From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33300) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cREhZ-0002Za-OI for qemu-devel@nongnu.org; Wed, 11 Jan 2017 03:56:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cREhW-0004rl-Mm for qemu-devel@nongnu.org; Wed, 11 Jan 2017 03:56:13 -0500 Received: from mga03.intel.com ([134.134.136.65]:14592) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cREhW-0004qC-Cu for qemu-devel@nongnu.org; Wed, 11 Jan 2017 03:56:10 -0500 From: Liang Li Date: Wed, 11 Jan 2017 16:48:39 +0800 Message-Id: <1484124524-481-2-git-send-email-liang.z.li@intel.com> 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> Subject: [Qemu-devel] [PATCH v4 qemu 1/6] virtio-balloon: update linux head file List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 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 */ -- 1.9.1