qemu/include/hw/s390x/s390-pci-vfio.h
Matthew Rosato 21fa15298d s390x/pci: add routine to get host function handle from CLP info
In order to interface with the underlying host zPCI device, we need
to know its function handle. Add a routine to grab this from the
vfio CLP capabilities chain.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20220902172737.170349-3-mjrosato@linux.ibm.com>
[thuth: Replace free(info) with g_free(info)]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-26 17:23:47 +02:00

45 lines
1.4 KiB
C

/*
* s390 vfio-pci interfaces
*
* Copyright 2020 IBM Corp.
* Author(s): Matthew Rosato <mjrosato@linux.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390_PCI_VFIO_H
#define HW_S390_PCI_VFIO_H
#include "hw/s390x/s390-pci-bus.h"
#include CONFIG_DEVICES
#ifdef CONFIG_VFIO
bool s390_pci_update_dma_avail(int fd, unsigned int *avail);
S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s,
S390PCIBusDevice *pbdev);
void s390_pci_end_dma_count(S390pciState *s, S390PCIDMACount *cnt);
bool s390_pci_get_host_fh(S390PCIBusDevice *pbdev, uint32_t *fh);
void s390_pci_get_clp_info(S390PCIBusDevice *pbdev);
#else
static inline bool s390_pci_update_dma_avail(int fd, unsigned int *avail)
{
return false;
}
static inline S390PCIDMACount *s390_pci_start_dma_count(S390pciState *s,
S390PCIBusDevice *pbdev)
{
return NULL;
}
static inline void s390_pci_end_dma_count(S390pciState *s,
S390PCIDMACount *cnt) { }
static inline bool s390_pci_get_host_fh(S390PCIBusDevice *pbdev, uint32_t *fh)
{
return false;
}
static inline void s390_pci_get_clp_info(S390PCIBusDevice *pbdev) { }
#endif
#endif