include/qemu/vfio-helpers.h

   1 /*
   2  * QEMU VFIO helpers
   3  *
   4  * Copyright 2016 - 2018 Red Hat, Inc.
   5  *
   6  * Authors:
   7  *   Fam Zheng <famz@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef QEMU_VFIO_HELPERS_H
  14 #define QEMU_VFIO_HELPERS_H
  15 #include "qemu/typedefs.h"
  16
  17 typedef struct QEMUVFIOState QEMUVFIOState;
  18
  19 QEMUVFIOState *qemu_vfio_open_pci(const char *device, Error **errp);
  20 void qemu_vfio_close(QEMUVFIOState *s);
  21 int qemu_vfio_dma_map(QEMUVFIOState *s, void *host, size_t size,
  22                       bool temporary, uint64_t *iova_list);
  23 int qemu_vfio_dma_reset_temporary(QEMUVFIOState *s);
  24 void qemu_vfio_dma_unmap(QEMUVFIOState *s, void *host);
  25 void *qemu_vfio_pci_map_bar(QEMUVFIOState *s, int index,
  26                             uint64_t offset, uint64_t size,
  27                             Error **errp);
  28 void qemu_vfio_pci_unmap_bar(QEMUVFIOState *s, int index, void *bar,
  29                              uint64_t offset, uint64_t size);
  30 int qemu_vfio_pci_init_irq(QEMUVFIOState *s, EventNotifier *e,
  31                            int irq_type, Error **errp);
  32
  33 #endif