From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Pierre Morel Subject: [PATCH v3 2/3] vfio: zpci: defining the VFIO headers Date: Thu, 23 May 2019 14:25:25 +0200 In-Reply-To: <1558614326-24711-1-git-send-email-pmorel@linux.ibm.com> References: <1558614326-24711-1-git-send-email-pmorel@linux.ibm.com> Message-Id: <1558614326-24711-3-git-send-email-pmorel@linux.ibm.com> Sender: kvm-owner@vger.kernel.org List-Archive: List-Post: To: sebott@linux.vnet.ibm.com Cc: gerald.schaefer@de.ibm.com, pasic@linux.vnet.ibm.com, borntraeger@de.ibm.com, walling@linux.ibm.com, linux-s390@vger.kernel.org, iommu@lists.linux-foundation.org, joro@8bytes.org, linux-kernel@vger.kernel.org, alex.williamson@redhat.com, kvm@vger.kernel.org, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, robin.murphy@arm.com List-ID: 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 --- include/uapi/linux/vfio.h | 4 ++++ include/uapi/linux/vfio_zdev.h | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) create mode 100644 include/uapi/linux/vfio_zdev.h diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 8f10748..56595b8 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -306,6 +306,10 @@ struct vfio_region_info_cap_type { #define VFIO_REGION_TYPE_GFX (1) #define VFIO_REGION_SUBTYPE_GFX_EDID (1) +/* IBM Subtypes */ +#define VFIO_REGION_TYPE_IBM_ZDEV (1) +#define VFIO_REGION_SUBTYPE_ZDEV_CLP (1) + /** * struct vfio_region_gfx_edid - EDID region layout. * diff --git a/include/uapi/linux/vfio_zdev.h b/include/uapi/linux/vfio_zdev.h new file mode 100644 index 0000000..84b1a82 --- /dev/null +++ b/include/uapi/linux/vfio_zdev.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Region definition for ZPCI devices + * + * Copyright IBM Corp. 2019 + * + * Author(s): Pierre Morel + */ + +#ifndef _VFIO_ZDEV_H_ +#define _VFIO_ZDEV_H_ + +#include + +/** + * 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; + __u8 gid; + __u8 version; +#define VFIO_PCI_ZDEV_FLAGS_REFRESH 1 + __u8 util_str[CLP_UTIL_STR_LEN]; +} __packed; + +#endif -- 2.7.4