vhost: split structs into a separate header file
vhost structs are shared by vhost-kernel and vhost-user. Split them into a separate file to ease copying them into programs that implement either the server or the client side of vhost-user. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini
Michael S. Tsirkin
parent
e8d26f29b7
commit
4b86713236
|
|
@ -11,94 +11,9 @@
|
|||
* device configuration.
|
||||
*/
|
||||
|
||||
#include <linux/vhost_types.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/compiler.h>
|
||||
#include <linux/ioctl.h>
|
||||
#include <linux/virtio_config.h>
|
||||
#include <linux/virtio_ring.h>
|
||||
|
||||
struct vhost_vring_state {
|
||||
unsigned int index;
|
||||
unsigned int num;
|
||||
};
|
||||
|
||||
struct vhost_vring_file {
|
||||
unsigned int index;
|
||||
int fd; /* Pass -1 to unbind from file. */
|
||||
|
||||
};
|
||||
|
||||
struct vhost_vring_addr {
|
||||
unsigned int index;
|
||||
/* Option flags. */
|
||||
unsigned int flags;
|
||||
/* Flag values: */
|
||||
/* Whether log address is valid. If set enables logging. */
|
||||
#define VHOST_VRING_F_LOG 0
|
||||
|
||||
/* Start of array of descriptors (virtually contiguous) */
|
||||
__u64 desc_user_addr;
|
||||
/* Used structure address. Must be 32 bit aligned */
|
||||
__u64 used_user_addr;
|
||||
/* Available structure address. Must be 16 bit aligned */
|
||||
__u64 avail_user_addr;
|
||||
/* Logging support. */
|
||||
/* Log writes to used structure, at offset calculated from specified
|
||||
* address. Address must be 32 bit aligned. */
|
||||
__u64 log_guest_addr;
|
||||
};
|
||||
|
||||
/* no alignment requirement */
|
||||
struct vhost_iotlb_msg {
|
||||
__u64 iova;
|
||||
__u64 size;
|
||||
__u64 uaddr;
|
||||
#define VHOST_ACCESS_RO 0x1
|
||||
#define VHOST_ACCESS_WO 0x2
|
||||
#define VHOST_ACCESS_RW 0x3
|
||||
__u8 perm;
|
||||
#define VHOST_IOTLB_MISS 1
|
||||
#define VHOST_IOTLB_UPDATE 2
|
||||
#define VHOST_IOTLB_INVALIDATE 3
|
||||
#define VHOST_IOTLB_ACCESS_FAIL 4
|
||||
__u8 type;
|
||||
};
|
||||
|
||||
#define VHOST_IOTLB_MSG 0x1
|
||||
#define VHOST_IOTLB_MSG_V2 0x2
|
||||
|
||||
struct vhost_msg {
|
||||
int type;
|
||||
union {
|
||||
struct vhost_iotlb_msg iotlb;
|
||||
__u8 padding[64];
|
||||
};
|
||||
};
|
||||
|
||||
struct vhost_msg_v2 {
|
||||
__u32 type;
|
||||
__u32 reserved;
|
||||
union {
|
||||
struct vhost_iotlb_msg iotlb;
|
||||
__u8 padding[64];
|
||||
};
|
||||
};
|
||||
|
||||
struct vhost_memory_region {
|
||||
__u64 guest_phys_addr;
|
||||
__u64 memory_size; /* bytes */
|
||||
__u64 userspace_addr;
|
||||
__u64 flags_padding; /* No flags are currently specified. */
|
||||
};
|
||||
|
||||
/* All region addresses and sizes must be 4K aligned. */
|
||||
#define VHOST_PAGE_SIZE 0x1000
|
||||
|
||||
struct vhost_memory {
|
||||
__u32 nregions;
|
||||
__u32 padding;
|
||||
struct vhost_memory_region regions[0];
|
||||
};
|
||||
|
||||
/* ioctls */
|
||||
|
||||
|
|
@ -186,31 +101,7 @@ struct vhost_memory {
|
|||
* device. This can be used to stop the ring (e.g. for migration). */
|
||||
#define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file)
|
||||
|
||||
/* Feature bits */
|
||||
/* Log all write descriptors. Can be changed while device is active. */
|
||||
#define VHOST_F_LOG_ALL 26
|
||||
/* vhost-net should add virtio_net_hdr for RX, and strip for TX packets. */
|
||||
#define VHOST_NET_F_VIRTIO_NET_HDR 27
|
||||
|
||||
/* VHOST_SCSI specific definitions */
|
||||
|
||||
/*
|
||||
* Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
|
||||
*
|
||||
* ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
|
||||
* RFC-v2 vhost-scsi userspace. Add GET_ABI_VERSION ioctl usage
|
||||
* ABI Rev 1: January 2013. Ignore vhost_tpgt filed in struct vhost_scsi_target.
|
||||
* All the targets under vhost_wwpn can be seen and used by guset.
|
||||
*/
|
||||
|
||||
#define VHOST_SCSI_ABI_VERSION 1
|
||||
|
||||
struct vhost_scsi_target {
|
||||
int abi_version;
|
||||
char vhost_wwpn[224]; /* TRANSPORT_IQN_LEN */
|
||||
unsigned short vhost_tpgt;
|
||||
unsigned short reserved;
|
||||
};
|
||||
/* VHOST_SCSI specific defines */
|
||||
|
||||
#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
|
||||
#define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,128 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||||
#ifndef _LINUX_VHOST_TYPES_H
|
||||
#define _LINUX_VHOST_TYPES_H
|
||||
/* Userspace interface for in-kernel virtio accelerators. */
|
||||
|
||||
/* vhost is used to reduce the number of system calls involved in virtio.
|
||||
*
|
||||
* Existing virtio net code is used in the guest without modification.
|
||||
*
|
||||
* This header includes interface used by userspace hypervisor for
|
||||
* device configuration.
|
||||
*/
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/compiler.h>
|
||||
#include <linux/virtio_config.h>
|
||||
#include <linux/virtio_ring.h>
|
||||
|
||||
struct vhost_vring_state {
|
||||
unsigned int index;
|
||||
unsigned int num;
|
||||
};
|
||||
|
||||
struct vhost_vring_file {
|
||||
unsigned int index;
|
||||
int fd; /* Pass -1 to unbind from file. */
|
||||
|
||||
};
|
||||
|
||||
struct vhost_vring_addr {
|
||||
unsigned int index;
|
||||
/* Option flags. */
|
||||
unsigned int flags;
|
||||
/* Flag values: */
|
||||
/* Whether log address is valid. If set enables logging. */
|
||||
#define VHOST_VRING_F_LOG 0
|
||||
|
||||
/* Start of array of descriptors (virtually contiguous) */
|
||||
__u64 desc_user_addr;
|
||||
/* Used structure address. Must be 32 bit aligned */
|
||||
__u64 used_user_addr;
|
||||
/* Available structure address. Must be 16 bit aligned */
|
||||
__u64 avail_user_addr;
|
||||
/* Logging support. */
|
||||
/* Log writes to used structure, at offset calculated from specified
|
||||
* address. Address must be 32 bit aligned. */
|
||||
__u64 log_guest_addr;
|
||||
};
|
||||
|
||||
/* no alignment requirement */
|
||||
struct vhost_iotlb_msg {
|
||||
__u64 iova;
|
||||
__u64 size;
|
||||
__u64 uaddr;
|
||||
#define VHOST_ACCESS_RO 0x1
|
||||
#define VHOST_ACCESS_WO 0x2
|
||||
#define VHOST_ACCESS_RW 0x3
|
||||
__u8 perm;
|
||||
#define VHOST_IOTLB_MISS 1
|
||||
#define VHOST_IOTLB_UPDATE 2
|
||||
#define VHOST_IOTLB_INVALIDATE 3
|
||||
#define VHOST_IOTLB_ACCESS_FAIL 4
|
||||
__u8 type;
|
||||
};
|
||||
|
||||
#define VHOST_IOTLB_MSG 0x1
|
||||
#define VHOST_IOTLB_MSG_V2 0x2
|
||||
|
||||
struct vhost_msg {
|
||||
int type;
|
||||
union {
|
||||
struct vhost_iotlb_msg iotlb;
|
||||
__u8 padding[64];
|
||||
};
|
||||
};
|
||||
|
||||
struct vhost_msg_v2 {
|
||||
__u32 type;
|
||||
__u32 reserved;
|
||||
union {
|
||||
struct vhost_iotlb_msg iotlb;
|
||||
__u8 padding[64];
|
||||
};
|
||||
};
|
||||
|
||||
struct vhost_memory_region {
|
||||
__u64 guest_phys_addr;
|
||||
__u64 memory_size; /* bytes */
|
||||
__u64 userspace_addr;
|
||||
__u64 flags_padding; /* No flags are currently specified. */
|
||||
};
|
||||
|
||||
/* All region addresses and sizes must be 4K aligned. */
|
||||
#define VHOST_PAGE_SIZE 0x1000
|
||||
|
||||
struct vhost_memory {
|
||||
__u32 nregions;
|
||||
__u32 padding;
|
||||
struct vhost_memory_region regions[0];
|
||||
};
|
||||
|
||||
/* VHOST_SCSI specific definitions */
|
||||
|
||||
/*
|
||||
* Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
|
||||
*
|
||||
* ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
|
||||
* RFC-v2 vhost-scsi userspace. Add GET_ABI_VERSION ioctl usage
|
||||
* ABI Rev 1: January 2013. Ignore vhost_tpgt field in struct vhost_scsi_target.
|
||||
* All the targets under vhost_wwpn can be seen and used by guset.
|
||||
*/
|
||||
|
||||
#define VHOST_SCSI_ABI_VERSION 1
|
||||
|
||||
struct vhost_scsi_target {
|
||||
int abi_version;
|
||||
char vhost_wwpn[224]; /* TRANSPORT_IQN_LEN */
|
||||
unsigned short vhost_tpgt;
|
||||
unsigned short reserved;
|
||||
};
|
||||
|
||||
/* Feature bits */
|
||||
/* Log all write descriptors. Can be changed while device is active. */
|
||||
#define VHOST_F_LOG_ALL 26
|
||||
/* vhost-net should add virtio_net_hdr for RX, and strip for TX packets. */
|
||||
#define VHOST_NET_F_VIRTIO_NET_HDR 27
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue