From cd7498d07fbb20fa04790ff7ee168a8a8d01cb30 Mon Sep 17 00:00:00 2001 From: Matthew Rosato Date: Mon, 26 Oct 2020 11:34:34 -0400 Subject: s390x/pci: Add routine to get the vfio dma available count Create new files for separating out vfio-specific work for s390 pci. Add the first such routine, which issues VFIO_IOMMU_GET_INFO ioctl to collect the current dma available count. Signed-off-by: Matthew Rosato Reviewed-by: Cornelia Huck [aw: Fix non-Linux build with CONFIG_LINUX] Signed-off-by: Alex Williamson --- include/hw/s390x/s390-pci-vfio.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 include/hw/s390x/s390-pci-vfio.h (limited to 'include') diff --git a/include/hw/s390x/s390-pci-vfio.h b/include/hw/s390x/s390-pci-vfio.h new file mode 100644 index 0000000000..1727292e9b --- /dev/null +++ b/include/hw/s390x/s390-pci-vfio.h @@ -0,0 +1,24 @@ +/* + * s390 vfio-pci interfaces + * + * Copyright 2020 IBM Corp. + * Author(s): Matthew Rosato + * + * 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 + +#ifdef CONFIG_LINUX +bool s390_pci_update_dma_avail(int fd, unsigned int *avail); +#else +static inline bool s390_pci_update_dma_avail(int fd, unsigned int *avail) +{ + return false; +} +#endif + +#endif -- cgit 1.4.1