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hc
2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/include/uapi/linux/vhost.h
....@@ -11,94 +11,11 @@
1111  * device configuration.
1212  */
1313 
14
+#include <linux/vhost_types.h>
1415 #include <linux/types.h>
15
-#include <linux/compiler.h>
1616 #include <linux/ioctl.h>
17
-#include <linux/virtio_config.h>
18
-#include <linux/virtio_ring.h>
1917 
20
-struct vhost_vring_state {
21
-	unsigned int index;
22
-	unsigned int num;
23
-};
24
-
25
-struct vhost_vring_file {
26
-	unsigned int index;
27
-	int fd; /* Pass -1 to unbind from file. */
28
-
29
-};
30
-
31
-struct vhost_vring_addr {
32
-	unsigned int index;
33
-	/* Option flags. */
34
-	unsigned int flags;
35
-	/* Flag values: */
36
-	/* Whether log address is valid. If set enables logging. */
37
-#define VHOST_VRING_F_LOG 0
38
-
39
-	/* Start of array of descriptors (virtually contiguous) */
40
-	__u64 desc_user_addr;
41
-	/* Used structure address. Must be 32 bit aligned */
42
-	__u64 used_user_addr;
43
-	/* Available structure address. Must be 16 bit aligned */
44
-	__u64 avail_user_addr;
45
-	/* Logging support. */
46
-	/* Log writes to used structure, at offset calculated from specified
47
-	 * address. Address must be 32 bit aligned. */
48
-	__u64 log_guest_addr;
49
-};
50
-
51
-/* no alignment requirement */
52
-struct vhost_iotlb_msg {
53
-	__u64 iova;
54
-	__u64 size;
55
-	__u64 uaddr;
56
-#define VHOST_ACCESS_RO      0x1
57
-#define VHOST_ACCESS_WO      0x2
58
-#define VHOST_ACCESS_RW      0x3
59
-	__u8 perm;
60
-#define VHOST_IOTLB_MISS           1
61
-#define VHOST_IOTLB_UPDATE         2
62
-#define VHOST_IOTLB_INVALIDATE     3
63
-#define VHOST_IOTLB_ACCESS_FAIL    4
64
-	__u8 type;
65
-};
66
-
67
-#define VHOST_IOTLB_MSG 0x1
68
-#define VHOST_IOTLB_MSG_V2 0x2
69
-
70
-struct vhost_msg {
71
-	int type;
72
-	union {
73
-		struct vhost_iotlb_msg iotlb;
74
-		__u8 padding[64];
75
-	};
76
-};
77
-
78
-struct vhost_msg_v2 {
79
-	__u32 type;
80
-	__u32 reserved;
81
-	union {
82
-		struct vhost_iotlb_msg iotlb;
83
-		__u8 padding[64];
84
-	};
85
-};
86
-
87
-struct vhost_memory_region {
88
-	__u64 guest_phys_addr;
89
-	__u64 memory_size; /* bytes */
90
-	__u64 userspace_addr;
91
-	__u64 flags_padding; /* No flags are currently specified. */
92
-};
93
-
94
-/* All region addresses and sizes must be 4K aligned. */
95
-#define VHOST_PAGE_SIZE 0x1000
96
-
97
-struct vhost_memory {
98
-	__u32 nregions;
99
-	__u32 padding;
100
-	struct vhost_memory_region regions[0];
101
-};
18
+#define VHOST_FILE_UNBIND -1
10219 
10320 /* ioctls */
10421 
....@@ -174,6 +91,8 @@
17491 
17592 /* Use message type V2 */
17693 #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1
94
+/* IOTLB can accept batching hints */
95
+#define VHOST_BACKEND_F_IOTLB_BATCH  0x2
17796 
17897 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
17998 #define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
....@@ -186,31 +105,7 @@
186105  * device.  This can be used to stop the ring (e.g. for migration). */
187106 #define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file)
188107 
189
-/* Feature bits */
190
-/* Log all write descriptors. Can be changed while device is active. */
191
-#define VHOST_F_LOG_ALL 26
192
-/* vhost-net should add virtio_net_hdr for RX, and strip for TX packets. */
193
-#define VHOST_NET_F_VIRTIO_NET_HDR 27
194
-
195
-/* VHOST_SCSI specific definitions */
196
-
197
-/*
198
- * Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
199
- *
200
- * ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
201
- *            RFC-v2 vhost-scsi userspace.  Add GET_ABI_VERSION ioctl usage
202
- * ABI Rev 1: January 2013. Ignore vhost_tpgt filed in struct vhost_scsi_target.
203
- *            All the targets under vhost_wwpn can be seen and used by guset.
204
- */
205
-
206
-#define VHOST_SCSI_ABI_VERSION	1
207
-
208
-struct vhost_scsi_target {
209
-	int abi_version;
210
-	char vhost_wwpn[224]; /* TRANSPORT_IQN_LEN */
211
-	unsigned short vhost_tpgt;
212
-	unsigned short reserved;
213
-};
108
+/* VHOST_SCSI specific defines */
214109 
215110 #define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
216111 #define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
....@@ -225,4 +120,34 @@
225120 #define VHOST_VSOCK_SET_GUEST_CID	_IOW(VHOST_VIRTIO, 0x60, __u64)
226121 #define VHOST_VSOCK_SET_RUNNING		_IOW(VHOST_VIRTIO, 0x61, int)
227122 
123
+/* VHOST_VDPA specific defines */
124
+
125
+/* Get the device id. The device ids follow the same definition of
126
+ * the device id defined in virtio-spec.
127
+ */
128
+#define VHOST_VDPA_GET_DEVICE_ID	_IOR(VHOST_VIRTIO, 0x70, __u32)
129
+/* Get and set the status. The status bits follow the same definition
130
+ * of the device status defined in virtio-spec.
131
+ */
132
+#define VHOST_VDPA_GET_STATUS		_IOR(VHOST_VIRTIO, 0x71, __u8)
133
+#define VHOST_VDPA_SET_STATUS		_IOW(VHOST_VIRTIO, 0x72, __u8)
134
+/* Get and set the device config. The device config follows the same
135
+ * definition of the device config defined in virtio-spec.
136
+ */
137
+#define VHOST_VDPA_GET_CONFIG		_IOR(VHOST_VIRTIO, 0x73, \
138
+					     struct vhost_vdpa_config)
139
+#define VHOST_VDPA_SET_CONFIG		_IOW(VHOST_VIRTIO, 0x74, \
140
+					     struct vhost_vdpa_config)
141
+/* Enable/disable the ring. */
142
+#define VHOST_VDPA_SET_VRING_ENABLE	_IOW(VHOST_VIRTIO, 0x75, \
143
+					     struct vhost_vring_state)
144
+/* Get the max ring size. */
145
+#define VHOST_VDPA_GET_VRING_NUM	_IOR(VHOST_VIRTIO, 0x76, __u16)
146
+
147
+/* Set event fd for config interrupt*/
148
+#define VHOST_VDPA_SET_CONFIG_CALL	_IOW(VHOST_VIRTIO, 0x77, int)
149
+
150
+/* Get the valid iova range */
151
+#define VHOST_VDPA_GET_IOVA_RANGE	_IOR(VHOST_VIRTIO, 0x78, \
152
+					     struct vhost_vdpa_iova_range)
228153 #endif