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-rw-r--r--include/linux/lguest.h39
-rw-r--r--include/linux/lguest_launcher.h18
-rw-r--r--include/linux/virtio_blk.h6
-rw-r--r--include/linux/virtio_config.h3
-rw-r--r--include/linux/virtio_net.h6
-rw-r--r--include/linux/virtio_ring.h12
6 files changed, 46 insertions, 38 deletions
diff --git a/include/linux/lguest.h b/include/linux/lguest.h
index dbf2479e808e..2fb1dcbcb5aa 100644
--- a/include/linux/lguest.h
+++ b/include/linux/lguest.h
@@ -1,5 +1,7 @@
1/* Things the lguest guest needs to know. Note: like all lguest interfaces, 1/*
2 * this is subject to wild and random change between versions. */ 2 * Things the lguest guest needs to know. Note: like all lguest interfaces,
3 * this is subject to wild and random change between versions.
4 */
3#ifndef _LINUX_LGUEST_H 5#ifndef _LINUX_LGUEST_H
4#define _LINUX_LGUEST_H 6#define _LINUX_LGUEST_H
5 7
@@ -11,32 +13,41 @@
11#define LG_CLOCK_MIN_DELTA 100UL 13#define LG_CLOCK_MIN_DELTA 100UL
12#define LG_CLOCK_MAX_DELTA ULONG_MAX 14#define LG_CLOCK_MAX_DELTA ULONG_MAX
13 15
14/*G:031 The second method of communicating with the Host is to via "struct 16/*G:031
17 * The second method of communicating with the Host is to via "struct
15 * lguest_data". Once the Guest's initialization hypercall tells the Host where 18 * lguest_data". Once the Guest's initialization hypercall tells the Host where
16 * this is, the Guest and Host both publish information in it. :*/ 19 * this is, the Guest and Host both publish information in it.
17struct lguest_data 20:*/
18{ 21struct lguest_data {
19 /* 512 == enabled (same as eflags in normal hardware). The Guest 22 /*
20 * changes interrupts so often that a hypercall is too slow. */ 23 * 512 == enabled (same as eflags in normal hardware). The Guest
24 * changes interrupts so often that a hypercall is too slow.
25 */
21 unsigned int irq_enabled; 26 unsigned int irq_enabled;
22 /* Fine-grained interrupt disabling by the Guest */ 27 /* Fine-grained interrupt disabling by the Guest */
23 DECLARE_BITMAP(blocked_interrupts, LGUEST_IRQS); 28 DECLARE_BITMAP(blocked_interrupts, LGUEST_IRQS);
24 29
25 /* The Host writes the virtual address of the last page fault here, 30 /*
31 * The Host writes the virtual address of the last page fault here,
26 * which saves the Guest a hypercall. CR2 is the native register where 32 * which saves the Guest a hypercall. CR2 is the native register where
27 * this address would normally be found. */ 33 * this address would normally be found.
34 */
28 unsigned long cr2; 35 unsigned long cr2;
29 36
30 /* Wallclock time set by the Host. */ 37 /* Wallclock time set by the Host. */
31 struct timespec time; 38 struct timespec time;
32 39
33 /* Interrupt pending set by the Host. The Guest should do a hypercall 40 /*
34 * if it re-enables interrupts and sees this set (to X86_EFLAGS_IF). */ 41 * Interrupt pending set by the Host. The Guest should do a hypercall
42 * if it re-enables interrupts and sees this set (to X86_EFLAGS_IF).
43 */
35 int irq_pending; 44 int irq_pending;
36 45
37 /* Async hypercall ring. Instead of directly making hypercalls, we can 46 /*
47 * Async hypercall ring. Instead of directly making hypercalls, we can
38 * place them in here for processing the next time the Host wants. 48 * place them in here for processing the next time the Host wants.
39 * This batching can be quite efficient. */ 49 * This batching can be quite efficient.
50 */
40 51
41 /* 0xFF == done (set by Host), 0 == pending (set by Guest). */ 52 /* 0xFF == done (set by Host), 0 == pending (set by Guest). */
42 u8 hcall_status[LHCALL_RING_SIZE]; 53 u8 hcall_status[LHCALL_RING_SIZE];
diff --git a/include/linux/lguest_launcher.h b/include/linux/lguest_launcher.h
index bfefbdf7498a..495203ff221c 100644
--- a/include/linux/lguest_launcher.h
+++ b/include/linux/lguest_launcher.h
@@ -29,8 +29,10 @@ struct lguest_device_desc {
29 __u8 type; 29 __u8 type;
30 /* The number of virtqueues (first in config array) */ 30 /* The number of virtqueues (first in config array) */
31 __u8 num_vq; 31 __u8 num_vq;
32 /* The number of bytes of feature bits. Multiply by 2: one for host 32 /*
33 * features and one for Guest acknowledgements. */ 33 * The number of bytes of feature bits. Multiply by 2: one for host
34 * features and one for Guest acknowledgements.
35 */
34 __u8 feature_len; 36 __u8 feature_len;
35 /* The number of bytes of the config array after virtqueues. */ 37 /* The number of bytes of the config array after virtqueues. */
36 __u8 config_len; 38 __u8 config_len;
@@ -39,8 +41,10 @@ struct lguest_device_desc {
39 __u8 config[0]; 41 __u8 config[0];
40}; 42};
41 43
42/*D:135 This is how we expect the device configuration field for a virtqueue 44/*D:135
43 * to be laid out in config space. */ 45 * This is how we expect the device configuration field for a virtqueue
46 * to be laid out in config space.
47 */
44struct lguest_vqconfig { 48struct lguest_vqconfig {
45 /* The number of entries in the virtio_ring */ 49 /* The number of entries in the virtio_ring */
46 __u16 num; 50 __u16 num;
@@ -61,7 +65,9 @@ enum lguest_req
61 LHREQ_EVENTFD, /* + address, fd. */ 65 LHREQ_EVENTFD, /* + address, fd. */
62}; 66};
63 67
64/* The alignment to use between consumer and producer parts of vring. 68/*
65 * x86 pagesize for historical reasons. */ 69 * The alignment to use between consumer and producer parts of vring.
70 * x86 pagesize for historical reasons.
71 */
66#define LGUEST_VRING_ALIGN 4096 72#define LGUEST_VRING_ALIGN 4096
67#endif /* _LINUX_LGUEST_LAUNCHER */ 73#endif /* _LINUX_LGUEST_LAUNCHER */
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index be7d255fc7cf..8dab9f2b8832 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -20,8 +20,7 @@
20 20
21#define VIRTIO_BLK_ID_BYTES (sizeof(__u16[256])) /* IDENTIFY DATA */ 21#define VIRTIO_BLK_ID_BYTES (sizeof(__u16[256])) /* IDENTIFY DATA */
22 22
23struct virtio_blk_config 23struct virtio_blk_config {
24{
25 /* The capacity (in 512-byte sectors). */ 24 /* The capacity (in 512-byte sectors). */
26 __u64 capacity; 25 __u64 capacity;
27 /* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */ 26 /* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */
@@ -50,8 +49,7 @@ struct virtio_blk_config
50#define VIRTIO_BLK_T_BARRIER 0x80000000 49#define VIRTIO_BLK_T_BARRIER 0x80000000
51 50
52/* This is the first element of the read scatter-gather list. */ 51/* This is the first element of the read scatter-gather list. */
53struct virtio_blk_outhdr 52struct virtio_blk_outhdr {
54{
55 /* VIRTIO_BLK_T* */ 53 /* VIRTIO_BLK_T* */
56 __u32 type; 54 __u32 type;
57 /* io priority. */ 55 /* io priority. */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 99f514575f6a..e547e3c8ee9a 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -79,8 +79,7 @@
79 * the dev->feature bits if it wants. 79 * the dev->feature bits if it wants.
80 */ 80 */
81typedef void vq_callback_t(struct virtqueue *); 81typedef void vq_callback_t(struct virtqueue *);
82struct virtio_config_ops 82struct virtio_config_ops {
83{
84 void (*get)(struct virtio_device *vdev, unsigned offset, 83 void (*get)(struct virtio_device *vdev, unsigned offset,
85 void *buf, unsigned len); 84 void *buf, unsigned len);
86 void (*set)(struct virtio_device *vdev, unsigned offset, 85 void (*set)(struct virtio_device *vdev, unsigned offset,
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 9c543d6ac535..d8dd539c9f48 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -31,8 +31,7 @@
31 31
32#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ 32#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
33 33
34struct virtio_net_config 34struct virtio_net_config {
35{
36 /* The config defining mac address (if VIRTIO_NET_F_MAC) */ 35 /* The config defining mac address (if VIRTIO_NET_F_MAC) */
37 __u8 mac[6]; 36 __u8 mac[6];
38 /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ 37 /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
@@ -41,8 +40,7 @@ struct virtio_net_config
41 40
42/* This is the first element of the scatter-gather list. If you don't 41/* This is the first element of the scatter-gather list. If you don't
43 * specify GSO or CSUM features, you can simply ignore the header. */ 42 * specify GSO or CSUM features, you can simply ignore the header. */
44struct virtio_net_hdr 43struct virtio_net_hdr {
45{
46#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset 44#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset
47 __u8 flags; 45 __u8 flags;
48#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame 46#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index 693e0ec5afa6..e4d144b132b5 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -30,8 +30,7 @@
30#define VIRTIO_RING_F_INDIRECT_DESC 28 30#define VIRTIO_RING_F_INDIRECT_DESC 28
31 31
32/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */ 32/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */
33struct vring_desc 33struct vring_desc {
34{
35 /* Address (guest-physical). */ 34 /* Address (guest-physical). */
36 __u64 addr; 35 __u64 addr;
37 /* Length. */ 36 /* Length. */
@@ -42,24 +41,21 @@ struct vring_desc
42 __u16 next; 41 __u16 next;
43}; 42};
44 43
45struct vring_avail 44struct vring_avail {
46{
47 __u16 flags; 45 __u16 flags;
48 __u16 idx; 46 __u16 idx;
49 __u16 ring[]; 47 __u16 ring[];
50}; 48};
51 49
52/* u32 is used here for ids for padding reasons. */ 50/* u32 is used here for ids for padding reasons. */
53struct vring_used_elem 51struct vring_used_elem {
54{
55 /* Index of start of used descriptor chain. */ 52 /* Index of start of used descriptor chain. */
56 __u32 id; 53 __u32 id;
57 /* Total length of the descriptor chain which was used (written to) */ 54 /* Total length of the descriptor chain which was used (written to) */
58 __u32 len; 55 __u32 len;
59}; 56};
60 57
61struct vring_used 58struct vring_used {
62{
63 __u16 flags; 59 __u16 flags;
64 __u16 idx; 60 __u16 idx;
65 struct vring_used_elem ring[]; 61 struct vring_used_elem ring[];