From: Pierre Morel <pmo...@linux.ibm.com> This should be copied from Linux kernel UAPI includes. The version used here is Linux 5.3.0
We define a new device region in vfio.h to be able to get the ZPCI CLP information by reading this region from userland. We create a new file, vfio_zdev.h to define the structure of the new region we defined in vfio.h Signed-off-by: Pierre Morel <pmo...@linux.ibm.com> Signed-off-by: Matthew Rosato <mjros...@linux.ibm.com> --- linux-headers/linux/vfio.h | 7 ++++--- linux-headers/linux/vfio_zdev.h | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+), 3 deletions(-) create mode 100644 linux-headers/linux/vfio_zdev.h diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index 24f5051..8328c87 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -9,8 +9,8 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#ifndef VFIO_H -#define VFIO_H +#ifndef _UAPIVFIO_H +#define _UAPIVFIO_H #include <linux/types.h> #include <linux/ioctl.h> @@ -371,6 +371,7 @@ struct vfio_region_gfx_edid { * to do TLB invalidation on a GPU. */ #define VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD (1) +#define VFIO_REGION_SUBTYPE_ZDEV_CLP (2) /* * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped @@ -914,4 +915,4 @@ struct vfio_iommu_spapr_tce_remove { /* ***************************************************************** */ -#endif /* VFIO_H */ +#endif /* _UAPIVFIO_H */ diff --git a/linux-headers/linux/vfio_zdev.h b/linux-headers/linux/vfio_zdev.h new file mode 100644 index 0000000..2b912a5 --- /dev/null +++ b/linux-headers/linux/vfio_zdev.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Region definition for ZPCI devices + * + * Copyright IBM Corp. 2019 + * + * Author(s): Pierre Morel <pmo...@linux.ibm.com> + */ + +#ifndef _VFIO_ZDEV_H_ +#define _VFIO_ZDEV_H_ + +#include <linux/types.h> + +/** + * struct vfio_region_zpci_info - ZPCI information. + * + */ +struct vfio_region_zpci_info { + __u64 dasm; + __u64 start_dma; + __u64 end_dma; + __u64 msi_addr; + __u64 flags; + __u16 pchid; + __u16 mui; + __u16 noi; + __u16 maxstbl; + __u8 version; + __u8 gid; +#define VFIO_PCI_ZDEV_FLAGS_REFRESH 1 + __u8 util_str[]; +} __attribute__ ((__packed__)); + +#endif -- 1.8.3.1