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authorDavid Marchand <david.marchand@6wind.com>2015-06-16 17:43:34 +0200
committerMarc-André Lureau <marcandre.lureau@redhat.com>2015-10-24 18:03:18 +0200
commit5105b1d8c2d1ad4a25b8806e86c0f012936b2eed (patch)
tree95dcbbebbf05b3b91be876b0355e76d9b94d7cc6 /include/hw/misc
parent8c4ef202b901d25b88efc55398d4a76dfb2594de (diff)
ivshmem: add check on protocol version in QEMU
Send a protocol version as the first message from server, clients must close communication if they don't support this protocol version. Older QEMUs should be fine with this change in the protocol since they overrides their own vm_id on reception of an id associated to no eventfd. Signed-off-by: David Marchand <david.marchand@6wind.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [use fifo_update_and_get()] Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Diffstat (limited to 'include/hw/misc')
-rw-r--r--include/hw/misc/ivshmem.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/hw/misc/ivshmem.h b/include/hw/misc/ivshmem.h
new file mode 100644
index 0000000000..433ef53d79
--- /dev/null
+++ b/include/hw/misc/ivshmem.h
@@ -0,0 +1,25 @@
+
+/*
+ * Inter-VM Shared Memory PCI device.
+ *
+ * Author:
+ * Cam Macdonell <cam@cs.ualberta.ca>
+ *
+ * Based On: cirrus_vga.c
+ * Copyright (c) 2004 Fabrice Bellard
+ * Copyright (c) 2004 Makoto Suzuki (suzu)
+ *
+ * and rtl8139.c
+ * Copyright (c) 2006 Igor Kovalenko
+ *
+ * This code is licensed under the GNU GPL v2.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+#ifndef IVSHMEM_H
+#define IVSHMEM_H
+
+#define IVSHMEM_PROTOCOL_VERSION 0
+
+#endif /* IVSHMEM_H */