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1/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */2/*3 * Definitions for virtio-pmem devices.4 *5 * Copyright (C) 2019 Red Hat, Inc.6 *7 * Author(s): Pankaj Gupta <pagupta@redhat.com>8 */9 10#ifndef _UAPI_LINUX_VIRTIO_PMEM_H11#define _UAPI_LINUX_VIRTIO_PMEM_H12 13#include <linux/types.h>14#include <linux/virtio_ids.h>15#include <linux/virtio_config.h>16 17/* Feature bits */18/* guest physical address range will be indicated as shared memory region 0 */19#define VIRTIO_PMEM_F_SHMEM_REGION 020 21/* shmid of the shared memory region corresponding to the pmem */22#define VIRTIO_PMEM_SHMEM_REGION_ID 023 24struct virtio_pmem_config {25 __le64 start;26 __le64 size;27};28 29#define VIRTIO_PMEM_REQ_TYPE_FLUSH 030 31struct virtio_pmem_resp {32 /* Host return status corresponding to flush request */33 __le32 ret;34};35 36struct virtio_pmem_req {37 /* command type */38 __le32 type;39};40 41#endif42