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linux/drivers/misc/vmw_vmci/vmci_driver.h
Stefano Garzarella b1bba80a43 vsock/vmci: register vmci_transport only when VMCI guest/host are active
To allow other transports to be loaded with vmci_transport,
we register the vmci_transport as G2H or H2G only when a VMCI guest
or host is active.

To do that, this patch adds a callback registered in the vmci driver
that will be called when the host or guest becomes active.
This callback will register the vmci_transport in the VSOCK core.

Cc: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-14 18:12:18 -08:00

54 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* VMware VMCI Driver
*
* Copyright (C) 2012 VMware, Inc. All rights reserved.
*/
#ifndef _VMCI_DRIVER_H_
#define _VMCI_DRIVER_H_
#include <linux/vmw_vmci_defs.h>
#include <linux/wait.h>
#include "vmci_queue_pair.h"
#include "vmci_context.h"
enum vmci_obj_type {
VMCIOBJ_VMX_VM = 10,
VMCIOBJ_CONTEXT,
VMCIOBJ_SOCKET,
VMCIOBJ_NOT_SET,
};
/* For storing VMCI structures in file handles. */
struct vmci_obj {
void *ptr;
enum vmci_obj_type type;
};
/*
* Needed by other components of this module. It's okay to have one global
* instance of this because there can only ever be one VMCI device. Our
* virtual hardware enforces this.
*/
extern struct pci_dev *vmci_pdev;
u32 vmci_get_context_id(void);
int vmci_send_datagram(struct vmci_datagram *dg);
void vmci_call_vsock_callback(bool is_host);
int vmci_host_init(void);
void vmci_host_exit(void);
bool vmci_host_code_active(void);
int vmci_host_users(void);
int vmci_guest_init(void);
void vmci_guest_exit(void);
bool vmci_guest_code_active(void);
u32 vmci_get_vm_context_id(void);
bool vmci_use_ppn64(void);
#endif /* _VMCI_DRIVER_H_ */