From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54062) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cnZoz-0000Lt-08 for qemu-devel@nongnu.org; Mon, 13 Mar 2017 19:56:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cnZox-0004lx-Qt for qemu-devel@nongnu.org; Mon, 13 Mar 2017 19:56:13 -0400 Received: from mail.kernel.org ([198.145.29.136]:46754) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cnZox-0004lC-HN for qemu-devel@nongnu.org; Mon, 13 Mar 2017 19:56:11 -0400 From: Stefano Stabellini Date: Mon, 13 Mar 2017 16:55:55 -0700 Message-Id: <1489449360-14411-4-git-send-email-sstabellini@kernel.org> In-Reply-To: <1489449360-14411-1-git-send-email-sstabellini@kernel.org> References: <1489449360-14411-1-git-send-email-sstabellini@kernel.org> Subject: [Qemu-devel] [PATCH v2 4/9] xen/9pfs: introduce Xen 9pfs backend List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: xen-devel@lists.xenproject.org, sstabellini@kernel.org, anthony.perard@citrix.com, groug@kaod.org, Stefano Stabellini , jgross@suse.com, "Aneesh Kumar K.V" Introduce the Xen 9pfs backend: add struct XenDevOps to register as a Xen backend and add struct V9fsTransport to register as v9fs transport. All functions are empty stubs for now. Signed-off-by: Stefano Stabellini Reviewed-by: Greg Kurz CC: anthony.perard@citrix.com CC: jgross@suse.com CC: Aneesh Kumar K.V CC: Greg Kurz --- hw/9pfs/xen-9p-backend.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 hw/9pfs/xen-9p-backend.c diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c new file mode 100644 index 0000000..35032d3 --- /dev/null +++ b/hw/9pfs/xen-9p-backend.c @@ -0,0 +1,96 @@ +/* + * Xen 9p backend + * + * Copyright Aporeto 2017 + * + * Authors: + * Stefano Stabellini + * + */ + +#include "qemu/osdep.h" + +#include "hw/hw.h" +#include "hw/9pfs/9p.h" +#include "hw/xen/xen_backend.h" +#include "xen_9pfs.h" +#include "qemu/config-file.h" +#include "fsdev/qemu-fsdev.h" + +typedef struct Xen9pfsDev { + struct XenDevice xendev; /* must be first */ +} Xen9pfsDev; + +static ssize_t xen_9pfs_pdu_vmarshal(V9fsPDU *pdu, + size_t offset, + const char *fmt, + va_list ap) +{ + return 0; +} + +static ssize_t xen_9pfs_pdu_vunmarshal(V9fsPDU *pdu, + size_t offset, + const char *fmt, + va_list ap) +{ + return 0; +} + +static void xen_9pfs_init_out_iov_from_pdu(V9fsPDU *pdu, + struct iovec **piov, + unsigned int *pniov) +{ +} + +static void xen_9pfs_init_in_iov_from_pdu(V9fsPDU *pdu, + struct iovec **piov, + unsigned int *pniov, + size_t size) +{ +} + +static void xen_9pfs_push_and_notify(V9fsPDU *pdu) +{ +} + +static const struct V9fsTransport xen_9p_transport = { + .pdu_vmarshal = xen_9pfs_pdu_vmarshal, + .pdu_vunmarshal = xen_9pfs_pdu_vunmarshal, + .init_in_iov_from_pdu = xen_9pfs_init_in_iov_from_pdu, + .init_out_iov_from_pdu = xen_9pfs_init_out_iov_from_pdu, + .push_and_notify = xen_9pfs_push_and_notify, +}; + +static int xen_9pfs_init(struct XenDevice *xendev) +{ + return 0; +} + +static int xen_9pfs_free(struct XenDevice *xendev) +{ + return -1; +} + +static int xen_9pfs_connect(struct XenDevice *xendev) +{ + return 0; +} + +static void xen_9pfs_alloc(struct XenDevice *xendev) +{ +} + +static void xen_9pfs_disconnect(struct XenDevice *xendev) +{ +} + +struct XenDevOps xen_9pfs_ops = { + .size = sizeof(Xen9pfsDev), + .flags = DEVOPS_FLAG_NEED_GNTDEV, + .alloc = xen_9pfs_alloc, + .init = xen_9pfs_init, + .initialise = xen_9pfs_connect, + .disconnect = xen_9pfs_disconnect, + .free = xen_9pfs_free, +}; -- 1.9.1