include/hw/s390x/s390-pci-vfio.h

   1 /*
   2  * s390 vfio-pci interfaces
   3  *
   4  * Copyright 2020 IBM Corp.
   5  * Author(s): Matthew Rosato <mjrosato@linux.ibm.com>
   6  *
   7  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   8  * your option) any later version. See the COPYING file in the top-level
   9  * directory.
  10  */
  11
  12 #ifndef HW_S390_PCI_VFIO_H
  13 #define HW_S390_PCI_VFIO_H
  14
  15 #include "hw/s390x/s390-pci-bus.h"
  16 #include CONFIG_DEVICES
  17
  18 #ifdef CONFIG_VFIO
  19 bool s390_pci_update_dma_avail(int fd, unsigned int *avail);
  20 S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s,
  21                                           S390PCIBusDevice *pbdev);
  22 void s390_pci_end_dma_count(S390pciState *s, S390PCIDMACount *cnt);
  23 bool s390_pci_get_host_fh(S390PCIBusDevice *pbdev, uint32_t *fh);
  24 void s390_pci_get_clp_info(S390PCIBusDevice *pbdev);
  25 #else
  26 static inline bool s390_pci_update_dma_avail(int fd, unsigned int *avail)
  27 {
  28     return false;
  29 }
  30 static inline S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s,
  31                                                         S390PCIBusDevice *pbdev)
  32 {
  33     return NULL;
  34 }
  35 static inline void s390_pci_end_dma_count(S390pciState *s,
  36                                           S390PCIDMACount *cnt) { }
  37 static inline bool s390_pci_get_host_fh(S390PCIBusDevice *pbdev, uint32_t *fh)
  38 {
  39     return false;
  40 }
  41 static inline void s390_pci_get_clp_info(S390PCIBusDevice *pbdev) { }
  42 #endif
  43
  44 #endif