1 files changed, 24 insertions, 14 deletions

diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index e9dae834da..83d7bd3e5f 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -276,7 +276,7 @@ static void ivshmem_receive(void *opaque, const uint8_t *buf, int size)
 
 static int ivshmem_can_receive(void * opaque)
 {
-    return sizeof(long);
+    return sizeof(int64_t);
 }
 
 static void ivshmem_event(void *opaque, int event)
@@ -516,7 +516,7 @@ static bool fifo_update_and_get(IVShmemState *s, const uint8_t *buf, int size,
     const uint8_t *p;
     uint32_t num;
 
-    assert(len <= sizeof(long)); /* limitation of the fifo */
+    assert(len <= sizeof(int64_t)); /* limitation of the fifo */
     if (fifo8_is_empty(&s->incoming_fifo) && size == len) {
         memcpy(data, buf, size);
         return true;
@@ -524,7 +524,7 @@ static bool fifo_update_and_get(IVShmemState *s, const uint8_t *buf, int size,
 
     IVSHMEM_DPRINTF("short read of %d bytes\n", size);
 
-    num = MIN(size, sizeof(long) - fifo8_num_used(&s->incoming_fifo));
+    num = MIN(size, sizeof(int64_t) - fifo8_num_used(&s->incoming_fifo));
     fifo8_push_all(&s->incoming_fifo, buf, num);
 
     if (fifo8_num_used(&s->incoming_fifo) < len) {
@@ -546,6 +546,17 @@ static bool fifo_update_and_get(IVShmemState *s, const uint8_t *buf, int size,
     return true;
 }
 
+static bool fifo_update_and_get_i64(IVShmemState *s,
+                                    const uint8_t *buf, int size, int64_t *i64)
+{
+    if (fifo_update_and_get(s, buf, size, i64, sizeof(*i64))) {
+        *i64 = GINT64_FROM_LE(*i64);
+        return true;
+    }
+
+    return false;
+}
+
 static int ivshmem_add_kvm_msi_virq(IVShmemState *s, int vector)
 {
     PCIDevice *pdev = PCI_DEVICE(s);
@@ -603,23 +614,23 @@ static void ivshmem_read(void *opaque, const uint8_t *buf, int size)
     IVShmemState *s = opaque;
     int incoming_fd;
     int new_eventfd;
-    long incoming_posn;
+    int64_t incoming_posn;
     Error *err = NULL;
     Peer *peer;
 
-    if (!fifo_update_and_get(s, buf, size,
-                             &incoming_posn, sizeof(incoming_posn))) {
+    if (!fifo_update_and_get_i64(s, buf, size, &incoming_posn)) {
         return;
     }
 
     if (incoming_posn < -1) {
-        IVSHMEM_DPRINTF("invalid incoming_posn %ld\n", incoming_posn);
+        IVSHMEM_DPRINTF("invalid incoming_posn %" PRId64 "\n", incoming_posn);
         return;
     }
 
     /* pick off s->server_chr->msgfd and store it, posn should accompany msg */
     incoming_fd = qemu_chr_fe_get_msgfd(s->server_chr);
-    IVSHMEM_DPRINTF("posn is %ld, fd is %d\n", incoming_posn, incoming_fd);
+    IVSHMEM_DPRINTF("posn is %" PRId64 ", fd is %d\n",
+                    incoming_posn, incoming_fd);
 
     /* make sure we have enough space for this peer */
     if (incoming_posn >= s->nb_peers) {
@@ -641,7 +652,7 @@ static void ivshmem_read(void *opaque, const uint8_t *buf, int size)
             s->vm_id = incoming_posn;
         } else {
             /* otherwise an fd == -1 means an existing peer has gone away */
-            IVSHMEM_DPRINTF("posn %ld has gone away\n", incoming_posn);
+            IVSHMEM_DPRINTF("posn %" PRId64 " has gone away\n", incoming_posn);
             close_peer_eventfds(s, incoming_posn);
         }
         return;
@@ -697,7 +708,7 @@ static void ivshmem_read(void *opaque, const uint8_t *buf, int size)
     new_eventfd = peer->nb_eventfds++;
 
     /* this is an eventfd for a particular peer VM */
-    IVSHMEM_DPRINTF("eventfds[%ld][%d] = %d\n", incoming_posn,
+    IVSHMEM_DPRINTF("eventfds[%" PRId64 "][%d] = %d\n", incoming_posn,
                     new_eventfd, incoming_fd);
     event_notifier_init_fd(&peer->eventfds[new_eventfd], incoming_fd);
     fcntl_setfl(incoming_fd, O_NONBLOCK); /* msix/irqfd poll non block */
@@ -715,10 +726,9 @@ static void ivshmem_check_version(void *opaque, const uint8_t * buf, int size)
 {
     IVShmemState *s = opaque;
     int tmp;
-    long version;
+    int64_t version;
 
-    if (!fifo_update_and_get(s, buf, size,
-                             &version, sizeof(version))) {
+    if (!fifo_update_and_get_i64(s, buf, size, &version)) {
         return;
     }
 
@@ -873,7 +883,7 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp)
         s->ivshmem_size = size;
     }
 
-    fifo8_create(&s->incoming_fifo, sizeof(long));
+    fifo8_create(&s->incoming_fifo, sizeof(int64_t));
 
     /* IRQFD requires MSI */
     if (ivshmem_has_feature(s, IVSHMEM_IOEVENTFD) &&