blob: eb4aab7f64ec7bdf84f70f6b8c562a9e8a8fe401 [file] [log] [blame]
* VMware VMCI Driver
* Copyright (C) 2012 VMware, Inc. All rights reserved.
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 and no later version.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
#include <linux/types.h>
#include <linux/list.h>
#include "vmci_context.h"
* The struct vmci_datagram_queue_entry is a queue header for the in-kernel VMCI
* datagram queues. It is allocated in non-paged memory, as the
* content is accessed while holding a spinlock. The pending datagram
* itself may be allocated from paged memory. We shadow the size of
* the datagram in the non-paged queue entry as this size is used
* while holding the same spinlock as above.
struct vmci_datagram_queue_entry {
struct list_head list_item; /* For queuing. */
size_t dg_size; /* Size of datagram. */
struct vmci_datagram *dg; /* Pending datagram. */
/* VMCIDatagramSendRecvInfo */
struct vmci_datagram_snd_rcv_info {
u64 addr;
u32 len;
s32 result;
/* Datagram API for non-public use. */
int vmci_datagram_dispatch(u32 context_id, struct vmci_datagram *dg,
bool from_guest);
int vmci_datagram_invoke_guest_handler(struct vmci_datagram *dg);
#endif /* _VMCI_DATAGRAM_H_ */