Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

4 files changed, 0 insertions, 897 deletions

diff --git a/qemu/contrib/ivshmem-server/Makefile.objs b/qemu/contrib/ivshmem-server/Makefile.objs
deleted file mode 100644
index c060dd369..000000000
--- a/qemu/contrib/ivshmem-server/Makefile.objs
+++ /dev/null
@@ -1 +0,0 @@
-ivshmem-server-obj-y = ivshmem-server.o main.o
diff --git a/qemu/contrib/ivshmem-server/ivshmem-server.c b/qemu/contrib/ivshmem-server/ivshmem-server.c
deleted file mode 100644
index 172db78b3..000000000
--- a/qemu/contrib/ivshmem-server/ivshmem-server.c
+++ /dev/null
@@ -1,457 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "qemu/sockets.h"
-
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include "ivshmem-server.h"
-
-/* log a message on stdout if verbose=1 */
-#define IVSHMEM_SERVER_DEBUG(server, fmt, ...) do { \
-        if ((server)->verbose) {         \
-            printf(fmt, ## __VA_ARGS__); \
-        }                                \
-    } while (0)
-
-/** maximum size of a huge page, used by ivshmem_server_ftruncate() */
-#define IVSHMEM_SERVER_MAX_HUGEPAGE_SIZE (1024 * 1024 * 1024)
-
-/** default listen backlog (number of sockets not accepted) */
-#define IVSHMEM_SERVER_LISTEN_BACKLOG 10
-
-/* send message to a client unix socket */
-static int
-ivshmem_server_send_one_msg(int sock_fd, int64_t peer_id, int fd)
-{
-    int ret;
-    struct msghdr msg;
-    struct iovec iov[1];
-    union {
-        struct cmsghdr cmsg;
-        char control[CMSG_SPACE(sizeof(int))];
-    } msg_control;
-    struct cmsghdr *cmsg;
-
-    peer_id = GINT64_TO_LE(peer_id);
-    iov[0].iov_base = &peer_id;
-    iov[0].iov_len = sizeof(peer_id);
-
-    memset(&msg, 0, sizeof(msg));
-    msg.msg_iov = iov;
-    msg.msg_iovlen = 1;
-
-    /* if fd is specified, add it in a cmsg */
-    if (fd >= 0) {
-        memset(&msg_control, 0, sizeof(msg_control));
-        msg.msg_control = &msg_control;
-        msg.msg_controllen = sizeof(msg_control);
-        cmsg = CMSG_FIRSTHDR(&msg);
-        cmsg->cmsg_level = SOL_SOCKET;
-        cmsg->cmsg_type = SCM_RIGHTS;
-        cmsg->cmsg_len = CMSG_LEN(sizeof(int));
-        memcpy(CMSG_DATA(cmsg), &fd, sizeof(fd));
-    }
-
-    ret = sendmsg(sock_fd, &msg, 0);
-    if (ret <= 0) {
-        return -1;
-    }
-
-    return 0;
-}
-
-/* free a peer when the server advertises a disconnection or when the
- * server is freed */
-static void
-ivshmem_server_free_peer(IvshmemServer *server, IvshmemServerPeer *peer)
-{
-    unsigned vector;
-    IvshmemServerPeer *other_peer;
-
-    IVSHMEM_SERVER_DEBUG(server, "free peer %" PRId64 "\n", peer->id);
-    close(peer->sock_fd);
-    QTAILQ_REMOVE(&server->peer_list, peer, next);
-
-    /* advertise the deletion to other peers */
-    QTAILQ_FOREACH(other_peer, &server->peer_list, next) {
-        ivshmem_server_send_one_msg(other_peer->sock_fd, peer->id, -1);
-    }
-
-    for (vector = 0; vector < peer->vectors_count; vector++) {
-        event_notifier_cleanup(&peer->vectors[vector]);
-    }
-
-    g_free(peer);
-}
-
-/* send the peer id and the shm_fd just after a new client connection */
-static int
-ivshmem_server_send_initial_info(IvshmemServer *server, IvshmemServerPeer *peer)
-{
-    int ret;
-
-    /* send our protocol version first */
-    ret = ivshmem_server_send_one_msg(peer->sock_fd, IVSHMEM_PROTOCOL_VERSION,
-                                      -1);
-    if (ret < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot send version: %s\n",
-                             strerror(errno));
-        return -1;
-    }
-
-    /* send the peer id to the client */
-    ret = ivshmem_server_send_one_msg(peer->sock_fd, peer->id, -1);
-    if (ret < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot send peer id: %s\n",
-                             strerror(errno));
-        return -1;
-    }
-
-    /* send the shm_fd */
-    ret = ivshmem_server_send_one_msg(peer->sock_fd, -1, server->shm_fd);
-    if (ret < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot send shm fd: %s\n",
-                             strerror(errno));
-        return -1;
-    }
-
-    return 0;
-}
-
-/* handle message on listening unix socket (new client connection) */
-static int
-ivshmem_server_handle_new_conn(IvshmemServer *server)
-{
-    IvshmemServerPeer *peer, *other_peer;
-    struct sockaddr_un unaddr;
-    socklen_t unaddr_len;
-    int newfd;
-    unsigned i;
-
-    /* accept the incoming connection */
-    unaddr_len = sizeof(unaddr);
-    newfd = qemu_accept(server->sock_fd,
-                        (struct sockaddr *)&unaddr, &unaddr_len);
-
-    if (newfd < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot accept() %s\n", strerror(errno));
-        return -1;
-    }
-
-    qemu_set_nonblock(newfd);
-    IVSHMEM_SERVER_DEBUG(server, "accept()=%d\n", newfd);
-
-    /* allocate new structure for this peer */
-    peer = g_malloc0(sizeof(*peer));
-    peer->sock_fd = newfd;
-
-    /* get an unused peer id */
-    /* XXX: this could use id allocation such as Linux IDA, or simply
-     * a free-list */
-    for (i = 0; i < G_MAXUINT16; i++) {
-        if (ivshmem_server_search_peer(server, server->cur_id) == NULL) {
-            break;
-        }
-        server->cur_id++;
-    }
-    if (i == G_MAXUINT16) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot allocate new client id\n");
-        close(newfd);
-        g_free(peer);
-        return -1;
-    }
-    peer->id = server->cur_id++;
-
-    /* create eventfd, one per vector */
-    peer->vectors_count = server->n_vectors;
-    for (i = 0; i < peer->vectors_count; i++) {
-        if (event_notifier_init(&peer->vectors[i], FALSE) < 0) {
-            IVSHMEM_SERVER_DEBUG(server, "cannot create eventfd\n");
-            goto fail;
-        }
-    }
-
-    /* send peer id and shm fd */
-    if (ivshmem_server_send_initial_info(server, peer) < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot send initial info\n");
-        goto fail;
-    }
-
-    /* advertise the new peer to others */
-    QTAILQ_FOREACH(other_peer, &server->peer_list, next) {
-        for (i = 0; i < peer->vectors_count; i++) {
-            ivshmem_server_send_one_msg(other_peer->sock_fd, peer->id,
-                                        peer->vectors[i].wfd);
-        }
-    }
-
-    /* advertise the other peers to the new one */
-    QTAILQ_FOREACH(other_peer, &server->peer_list, next) {
-        for (i = 0; i < peer->vectors_count; i++) {
-            ivshmem_server_send_one_msg(peer->sock_fd, other_peer->id,
-                                        other_peer->vectors[i].wfd);
-        }
-    }
-
-    /* advertise the new peer to itself */
-    for (i = 0; i < peer->vectors_count; i++) {
-        ivshmem_server_send_one_msg(peer->sock_fd, peer->id,
-                                    event_notifier_get_fd(&peer->vectors[i]));
-    }
-
-    QTAILQ_INSERT_TAIL(&server->peer_list, peer, next);
-    IVSHMEM_SERVER_DEBUG(server, "new peer id = %" PRId64 "\n",
-                         peer->id);
-    return 0;
-
-fail:
-    while (i--) {
-        event_notifier_cleanup(&peer->vectors[i]);
-    }
-    close(newfd);
-    g_free(peer);
-    return -1;
-}
-
-/* Try to ftruncate a file to next power of 2 of shmsize.
- * If it fails; all power of 2 above shmsize are tested until
- * we reach the maximum huge page size. This is useful
- * if the shm file is in a hugetlbfs that cannot be truncated to the
- * shm_size value. */
-static int
-ivshmem_server_ftruncate(int fd, unsigned shmsize)
-{
-    int ret;
-    struct stat mapstat;
-
-    /* align shmsize to next power of 2 */
-    shmsize = pow2ceil(shmsize);
-
-    if (fstat(fd, &mapstat) != -1 && mapstat.st_size == shmsize) {
-        return 0;
-    }
-
-    while (shmsize <= IVSHMEM_SERVER_MAX_HUGEPAGE_SIZE) {
-        ret = ftruncate(fd, shmsize);
-        if (ret == 0) {
-            return ret;
-        }
-        shmsize *= 2;
-    }
-
-    return -1;
-}
-
-/* Init a new ivshmem server */
-int
-ivshmem_server_init(IvshmemServer *server, const char *unix_sock_path,
-                    const char *shm_path, bool use_shm_open,
-                    size_t shm_size, unsigned n_vectors,
-                    bool verbose)
-{
-    int ret;
-
-    memset(server, 0, sizeof(*server));
-    server->verbose = verbose;
-
-    ret = snprintf(server->unix_sock_path, sizeof(server->unix_sock_path),
-                   "%s", unix_sock_path);
-    if (ret < 0 || ret >= sizeof(server->unix_sock_path)) {
-        IVSHMEM_SERVER_DEBUG(server, "could not copy unix socket path\n");
-        return -1;
-    }
-    ret = snprintf(server->shm_path, sizeof(server->shm_path),
-                   "%s", shm_path);
-    if (ret < 0 || ret >= sizeof(server->shm_path)) {
-        IVSHMEM_SERVER_DEBUG(server, "could not copy shm path\n");
-        return -1;
-    }
-
-    server->use_shm_open = use_shm_open;
-    server->shm_size = shm_size;
-    server->n_vectors = n_vectors;
-
-    QTAILQ_INIT(&server->peer_list);
-
-    return 0;
-}
-
-/* open shm, create and bind to the unix socket */
-int
-ivshmem_server_start(IvshmemServer *server)
-{
-    struct sockaddr_un sun;
-    int shm_fd, sock_fd, ret;
-
-    /* open shm file */
-    if (server->use_shm_open) {
-        IVSHMEM_SERVER_DEBUG(server, "Using POSIX shared memory: %s\n",
-                             server->shm_path);
-        shm_fd = shm_open(server->shm_path, O_CREAT | O_RDWR, S_IRWXU);
-    } else {
-        gchar *filename = g_strdup_printf("%s/ivshmem.XXXXXX", server->shm_path);
-        IVSHMEM_SERVER_DEBUG(server, "Using file-backed shared memory: %s\n",
-                             server->shm_path);
-        shm_fd = mkstemp(filename);
-        unlink(filename);
-        g_free(filename);
-    }
-
-    if (shm_fd < 0) {
-        fprintf(stderr, "cannot open shm file %s: %s\n", server->shm_path,
-                strerror(errno));
-        return -1;
-    }
-    if (ivshmem_server_ftruncate(shm_fd, server->shm_size) < 0) {
-        fprintf(stderr, "ftruncate(%s) failed: %s\n", server->shm_path,
-                strerror(errno));
-        goto err_close_shm;
-    }
-
-    IVSHMEM_SERVER_DEBUG(server, "create & bind socket %s\n",
-                         server->unix_sock_path);
-
-    /* create the unix listening socket */
-    sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (sock_fd < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot create socket: %s\n",
-                             strerror(errno));
-        goto err_close_shm;
-    }
-
-    sun.sun_family = AF_UNIX;
-    ret = snprintf(sun.sun_path, sizeof(sun.sun_path), "%s",
-                   server->unix_sock_path);
-    if (ret < 0 || ret >= sizeof(sun.sun_path)) {
-        IVSHMEM_SERVER_DEBUG(server, "could not copy unix socket path\n");
-        goto err_close_sock;
-    }
-    if (bind(sock_fd, (struct sockaddr *)&sun, sizeof(sun)) < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "cannot connect to %s: %s\n", sun.sun_path,
-                             strerror(errno));
-        goto err_close_sock;
-    }
-
-    if (listen(sock_fd, IVSHMEM_SERVER_LISTEN_BACKLOG) < 0) {
-        IVSHMEM_SERVER_DEBUG(server, "listen() failed: %s\n", strerror(errno));
-        goto err_close_sock;
-    }
-
-    server->sock_fd = sock_fd;
-    server->shm_fd = shm_fd;
-
-    return 0;
-
-err_close_sock:
-    close(sock_fd);
-err_close_shm:
-    close(shm_fd);
-    return -1;
-}
-
-/* close connections to clients, the unix socket and the shm fd */
-void
-ivshmem_server_close(IvshmemServer *server)
-{
-    IvshmemServerPeer *peer, *npeer;
-
-    IVSHMEM_SERVER_DEBUG(server, "close server\n");
-
-    QTAILQ_FOREACH_SAFE(peer, &server->peer_list, next, npeer) {
-        ivshmem_server_free_peer(server, peer);
-    }
-
-    unlink(server->unix_sock_path);
-    close(server->sock_fd);
-    close(server->shm_fd);
-    server->sock_fd = -1;
-    server->shm_fd = -1;
-}
-
-/* get the fd_set according to the unix socket and the peer list */
-void
-ivshmem_server_get_fds(const IvshmemServer *server, fd_set *fds, int *maxfd)
-{
-    IvshmemServerPeer *peer;
-
-    if (server->sock_fd == -1) {
-        return;
-    }
-
-    FD_SET(server->sock_fd, fds);
-    if (server->sock_fd >= *maxfd) {
-        *maxfd = server->sock_fd + 1;
-    }
-
-    QTAILQ_FOREACH(peer, &server->peer_list, next) {
-        FD_SET(peer->sock_fd, fds);
-        if (peer->sock_fd >= *maxfd) {
-            *maxfd = peer->sock_fd + 1;
-        }
-    }
-}
-
-/* process incoming messages on the sockets in fd_set */
-int
-ivshmem_server_handle_fds(IvshmemServer *server, fd_set *fds, int maxfd)
-{
-    IvshmemServerPeer *peer, *peer_next;
-
-    if (server->sock_fd < maxfd && FD_ISSET(server->sock_fd, fds) &&
-        ivshmem_server_handle_new_conn(server) < 0 && errno != EINTR) {
-        IVSHMEM_SERVER_DEBUG(server, "ivshmem_server_handle_new_conn() "
-                             "failed\n");
-        return -1;
-    }
-
-    QTAILQ_FOREACH_SAFE(peer, &server->peer_list, next, peer_next) {
-        /* any message from a peer socket result in a close() */
-        IVSHMEM_SERVER_DEBUG(server, "peer->sock_fd=%d\n", peer->sock_fd);
-        if (peer->sock_fd < maxfd && FD_ISSET(peer->sock_fd, fds)) {
-            ivshmem_server_free_peer(server, peer);
-        }
-    }
-
-    return 0;
-}
-
-/* lookup peer from its id */
-IvshmemServerPeer *
-ivshmem_server_search_peer(IvshmemServer *server, int64_t peer_id)
-{
-    IvshmemServerPeer *peer;
-
-    QTAILQ_FOREACH(peer, &server->peer_list, next) {
-        if (peer->id == peer_id) {
-            return peer;
-        }
-    }
-    return NULL;
-}
-
-/* dump our info, the list of peers their vectors on stdout */
-void
-ivshmem_server_dump(const IvshmemServer *server)
-{
-    const IvshmemServerPeer *peer;
-    unsigned vector;
-
-    /* dump peers */
-    QTAILQ_FOREACH(peer, &server->peer_list, next) {
-        printf("peer_id = %" PRId64 "\n", peer->id);
-
-        for (vector = 0; vector < peer->vectors_count; vector++) {
-            printf("  vector %d is enabled (fd=%d)\n", vector,
-                   event_notifier_get_fd(&peer->vectors[vector]));
-        }
-    }
-}
diff --git a/qemu/contrib/ivshmem-server/ivshmem-server.h b/qemu/contrib/ivshmem-server/ivshmem-server.h
deleted file mode 100644
index 385163961..000000000
--- a/qemu/contrib/ivshmem-server/ivshmem-server.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-
-#ifndef _IVSHMEM_SERVER_H_
-#define _IVSHMEM_SERVER_H_
-
-/**
- * The ivshmem server is a daemon that creates a unix socket in listen
- * mode. The ivshmem clients (qemu or ivshmem-client) connect to this
- * unix socket. For each client, the server will create some eventfd
- * (see EVENTFD(2)), one per vector. These fd are transmitted to all
- * clients using the SCM_RIGHTS cmsg message. Therefore, each client is
- * able to send a notification to another client without beeing
- * "profixied" by the server.
- *
- * We use this mechanism to send interruptions between guests.
- * qemu is able to transform an event on a eventfd into a PCI MSI-x
- * interruption in the guest.
- *
- * The ivshmem server is also able to share the file descriptor
- * associated to the ivshmem shared memory.
- */
-
-#include <sys/select.h>
-
-#include "qemu/event_notifier.h"
-#include "qemu/queue.h"
-#include "hw/misc/ivshmem.h"
-
-/**
- * Maximum number of notification vectors supported by the server
- */
-#define IVSHMEM_SERVER_MAX_VECTORS 64
-
-/**
- * Structure storing a peer
- *
- * Each time a client connects to an ivshmem server, a new
- * IvshmemServerPeer structure is created. This peer and all its
- * vectors are advertised to all connected clients through the connected
- * unix sockets.
- */
-typedef struct IvshmemServerPeer {
-    QTAILQ_ENTRY(IvshmemServerPeer) next;    /**< next in list*/
-    int sock_fd;                             /**< connected unix sock */
-    int64_t id;                              /**< the id of the peer */
-    EventNotifier vectors[IVSHMEM_SERVER_MAX_VECTORS]; /**< one per vector */
-    unsigned vectors_count;                  /**< number of vectors */
-} IvshmemServerPeer;
-QTAILQ_HEAD(IvshmemServerPeerList, IvshmemServerPeer);
-
-typedef struct IvshmemServerPeerList IvshmemServerPeerList;
-
-/**
- * Structure describing an ivshmem server
- *
- * This structure stores all information related to our server: the name
- * of the server unix socket and the list of connected peers.
- */
-typedef struct IvshmemServer {
-    char unix_sock_path[PATH_MAX];   /**< path to unix socket */
-    int sock_fd;                     /**< unix sock file descriptor */
-    char shm_path[PATH_MAX];         /**< path to shm */
-    bool use_shm_open;
-    size_t shm_size;                 /**< size of shm */
-    int shm_fd;                      /**< shm file descriptor */
-    unsigned n_vectors;              /**< number of vectors */
-    uint16_t cur_id;                 /**< id to be given to next client */
-    bool verbose;                    /**< true in verbose mode */
-    IvshmemServerPeerList peer_list; /**< list of peers */
-} IvshmemServer;
-
-/**
- * Initialize an ivshmem server
- *
- * @server:         A pointer to an uninitialized IvshmemServer structure
- * @unix_sock_path: The pointer to the unix socket file name
- * @shm_path:       Path to the shared memory. The path corresponds to a POSIX
- *                  shm name or a hugetlbfs mount point.
- * @shm_size:       Size of shared memory
- * @n_vectors:      Number of interrupt vectors per client
- * @verbose:        True to enable verbose mode
- *
- * Returns:         0 on success, or a negative value on error
- */
-int
-ivshmem_server_init(IvshmemServer *server, const char *unix_sock_path,
-                    const char *shm_path, bool use_shm_open,
-                    size_t shm_size, unsigned n_vectors,
-                    bool verbose);
-
-/**
- * Open the shm, then create and bind to the unix socket
- *
- * @server: The pointer to the initialized IvshmemServer structure
- *
- * Returns: 0 on success, or a negative value on error
- */
-int ivshmem_server_start(IvshmemServer *server);
-
-/**
- * Close the server
- *
- * Close connections to all clients, close the unix socket and the
- * shared memory file descriptor. The structure remains initialized, so
- * it is possible to call ivshmem_server_start() again after a call to
- * ivshmem_server_close().
- *
- * @server: The ivshmem server
- */
-void ivshmem_server_close(IvshmemServer *server);
-
-/**
- * Fill a fd_set with file descriptors to be monitored
- *
- * This function will fill a fd_set with all file descriptors that must
- * be polled (unix server socket and peers unix socket). The function
- * will not initialize the fd_set, it is up to the caller to do it.
- *
- * @server: The ivshmem server
- * @fds:    The fd_set to be updated
- * @maxfd:  Must be set to the max file descriptor + 1 in fd_set. This value is
- *          updated if this function adds a greater fd in fd_set.
- */
-void
-ivshmem_server_get_fds(const IvshmemServer *server, fd_set *fds, int *maxfd);
-
-/**
- * Read and handle new messages
- *
- * Given a fd_set (for instance filled by a call to select()), handle
- * incoming messages from peers.
- *
- * @server: The ivshmem server
- * @fds:    The fd_set containing the file descriptors to be checked. Note that
- *          file descriptors that are not related to our server are ignored.
- * @maxfd:  The maximum fd in fd_set, plus one.
- *
- * Returns: 0 on success, or a negative value on error
- */
-int ivshmem_server_handle_fds(IvshmemServer *server, fd_set *fds, int maxfd);
-
-/**
- * Search a peer from its identifier
- *
- * @server:  The ivshmem server
- * @peer_id: The identifier of the peer structure
- *
- * Returns:  The peer structure, or NULL if not found
- */
-IvshmemServerPeer *
-ivshmem_server_search_peer(IvshmemServer *server, int64_t peer_id);
-
-/**
- * Dump information of this ivshmem server and its peers on stdout
- *
- * @server: The ivshmem server
- */
-void ivshmem_server_dump(const IvshmemServer *server);
-
-#endif /* _IVSHMEM_SERVER_H_ */
diff --git a/qemu/contrib/ivshmem-server/main.c b/qemu/contrib/ivshmem-server/main.c
deleted file mode 100644
index 45776d8af..000000000
--- a/qemu/contrib/ivshmem-server/main.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/cutils.h"
-
-#include "ivshmem-server.h"
-
-#define IVSHMEM_SERVER_DEFAULT_VERBOSE        0
-#define IVSHMEM_SERVER_DEFAULT_FOREGROUND     0
-#define IVSHMEM_SERVER_DEFAULT_PID_FILE       "/var/run/ivshmem-server.pid"
-#define IVSHMEM_SERVER_DEFAULT_UNIX_SOCK_PATH "/tmp/ivshmem_socket"
-#define IVSHMEM_SERVER_DEFAULT_SHM_PATH       "ivshmem"
-#define IVSHMEM_SERVER_DEFAULT_SHM_SIZE       (4*1024*1024)
-#define IVSHMEM_SERVER_DEFAULT_N_VECTORS      1
-
-/* used to quit on signal SIGTERM */
-static int ivshmem_server_quit;
-
-/* arguments given by the user */
-typedef struct IvshmemServerArgs {
-    bool verbose;
-    bool foreground;
-    const char *pid_file;
-    const char *unix_socket_path;
-    const char *shm_path;
-    bool use_shm_open;
-    uint64_t shm_size;
-    unsigned n_vectors;
-} IvshmemServerArgs;
-
-static void
-ivshmem_server_usage(const char *progname)
-{
-    printf("Usage: %s [OPTION]...\n"
-           "  -h: show this help\n"
-           "  -v: verbose mode\n"
-           "  -F: foreground mode (default is to daemonize)\n"
-           "  -p <pid-file>: path to the PID file (used in daemon mode only)\n"
-           "     default " IVSHMEM_SERVER_DEFAULT_PID_FILE "\n"
-           "  -S <unix-socket-path>: path to the unix socket to listen to\n"
-           "     default " IVSHMEM_SERVER_DEFAULT_UNIX_SOCK_PATH "\n"
-           "  -M <shm-name>: POSIX shared memory object to use\n"
-           "     default " IVSHMEM_SERVER_DEFAULT_SHM_PATH "\n"
-           "  -m <dir-name>: where to create shared memory\n"
-           "  -l <size>: size of shared memory in bytes\n"
-           "     suffixes K, M and G can be used, e.g. 1K means 1024\n"
-           "     default %u\n"
-           "  -n <nvectors>: number of vectors\n"
-           "     default %u\n",
-           progname, IVSHMEM_SERVER_DEFAULT_SHM_SIZE,
-           IVSHMEM_SERVER_DEFAULT_N_VECTORS);
-}
-
-static void
-ivshmem_server_help(const char *progname)
-{
-    fprintf(stderr, "Try '%s -h' for more information.\n", progname);
-}
-
-/* parse the program arguments, exit on error */
-static void
-ivshmem_server_parse_args(IvshmemServerArgs *args, int argc, char *argv[])
-{
-    int c;
-    unsigned long long v;
-    Error *err = NULL;
-
-    while ((c = getopt(argc, argv, "hvFp:S:m:M:l:n:")) != -1) {
-
-        switch (c) {
-        case 'h': /* help */
-            ivshmem_server_usage(argv[0]);
-            exit(0);
-            break;
-
-        case 'v': /* verbose */
-            args->verbose = 1;
-            break;
-
-        case 'F': /* foreground */
-            args->foreground = 1;
-            break;
-
-        case 'p': /* pid file */
-            args->pid_file = optarg;
-            break;
-
-        case 'S': /* unix socket path */
-            args->unix_socket_path = optarg;
-            break;
-
-        case 'M': /* shm name */
-        case 'm': /* dir name */
-            args->shm_path = optarg;
-            args->use_shm_open = c == 'M';
-            break;
-
-        case 'l': /* shm size */
-            parse_option_size("shm_size", optarg, &args->shm_size, &err);
-            if (err) {
-                error_report_err(err);
-                ivshmem_server_help(argv[0]);
-                exit(1);
-            }
-            break;
-
-        case 'n': /* number of vectors */
-            if (parse_uint_full(optarg, &v, 0) < 0) {
-                fprintf(stderr, "cannot parse n_vectors\n");
-                ivshmem_server_help(argv[0]);
-                exit(1);
-            }
-            args->n_vectors = v;
-            break;
-
-        default:
-            ivshmem_server_usage(argv[0]);
-            exit(1);
-            break;
-        }
-    }
-
-    if (args->n_vectors > IVSHMEM_SERVER_MAX_VECTORS) {
-        fprintf(stderr, "too many requested vectors (max is %d)\n",
-                IVSHMEM_SERVER_MAX_VECTORS);
-        ivshmem_server_help(argv[0]);
-        exit(1);
-    }
-
-    if (args->verbose == 1 && args->foreground == 0) {
-        fprintf(stderr, "cannot use verbose in daemon mode\n");
-        ivshmem_server_help(argv[0]);
-        exit(1);
-    }
-}
-
-/* wait for events on listening server unix socket and connected client
- * sockets */
-static int
-ivshmem_server_poll_events(IvshmemServer *server)
-{
-    fd_set fds;
-    int ret = 0, maxfd;
-
-    while (!ivshmem_server_quit) {
-
-        FD_ZERO(&fds);
-        maxfd = 0;
-        ivshmem_server_get_fds(server, &fds, &maxfd);
-
-        ret = select(maxfd, &fds, NULL, NULL, NULL);
-
-        if (ret < 0) {
-            if (errno == EINTR) {
-                continue;
-            }
-
-            fprintf(stderr, "select error: %s\n", strerror(errno));
-            break;
-        }
-        if (ret == 0) {
-            continue;
-        }
-
-        if (ivshmem_server_handle_fds(server, &fds, maxfd) < 0) {
-            fprintf(stderr, "ivshmem_server_handle_fds() failed\n");
-            break;
-        }
-    }
-
-    return ret;
-}
-
-static void
-ivshmem_server_quit_cb(int signum)
-{
-    ivshmem_server_quit = 1;
-}
-
-int
-main(int argc, char *argv[])
-{
-    IvshmemServer server;
-    struct sigaction sa, sa_quit;
-    IvshmemServerArgs args = {
-        .verbose = IVSHMEM_SERVER_DEFAULT_VERBOSE,
-        .foreground = IVSHMEM_SERVER_DEFAULT_FOREGROUND,
-        .pid_file = IVSHMEM_SERVER_DEFAULT_PID_FILE,
-        .unix_socket_path = IVSHMEM_SERVER_DEFAULT_UNIX_SOCK_PATH,
-        .shm_path = IVSHMEM_SERVER_DEFAULT_SHM_PATH,
-        .use_shm_open = true,
-        .shm_size = IVSHMEM_SERVER_DEFAULT_SHM_SIZE,
-        .n_vectors = IVSHMEM_SERVER_DEFAULT_N_VECTORS,
-    };
-    int ret = 1;
-
-    /*
-     * Do not remove this notice without adding proper error handling!
-     * Start with handling ivshmem_server_send_one_msg() failure.
-     */
-    printf("*** Example code, do not use in production ***\n");
-
-    /* parse arguments, will exit on error */
-    ivshmem_server_parse_args(&args, argc, argv);
-
-    /* Ignore SIGPIPE, see this link for more info:
-     * http://www.mail-archive.com/libevent-users@monkey.org/msg01606.html */
-    sa.sa_handler = SIG_IGN;
-    sa.sa_flags = 0;
-    if (sigemptyset(&sa.sa_mask) == -1 ||
-        sigaction(SIGPIPE, &sa, 0) == -1) {
-        perror("failed to ignore SIGPIPE; sigaction");
-        goto err;
-    }
-
-    sa_quit.sa_handler = ivshmem_server_quit_cb;
-    sa_quit.sa_flags = 0;
-    if (sigemptyset(&sa_quit.sa_mask) == -1 ||
-        sigaction(SIGTERM, &sa_quit, 0) == -1) {
-        perror("failed to add SIGTERM handler; sigaction");
-        goto err;
-    }
-
-    /* init the ivshms structure */
-    if (ivshmem_server_init(&server, args.unix_socket_path,
-                            args.shm_path, args.use_shm_open,
-                            args.shm_size, args.n_vectors, args.verbose) < 0) {
-        fprintf(stderr, "cannot init server\n");
-        goto err;
-    }
-
-    /* start the ivshmem server (open shm & unix socket) */
-    if (ivshmem_server_start(&server) < 0) {
-        fprintf(stderr, "cannot bind\n");
-        goto err;
-    }
-
-    /* daemonize if asked to */
-    if (!args.foreground) {
-        FILE *fp;
-
-        if (qemu_daemon(1, 1) < 0) {
-            fprintf(stderr, "cannot daemonize: %s\n", strerror(errno));
-            goto err_close;
-        }
-
-        /* write pid file */
-        fp = fopen(args.pid_file, "w");
-        if (fp == NULL) {
-            fprintf(stderr, "cannot write pid file: %s\n", strerror(errno));
-            goto err_close;
-        }
-
-        fprintf(fp, "%d\n", (int) getpid());
-        fclose(fp);
-    }
-
-    ivshmem_server_poll_events(&server);
-    fprintf(stdout, "server disconnected\n");
-    ret = 0;
-
-err_close:
-    ivshmem_server_close(&server);
-err:
-    return ret;
-}