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authorRusty Russell <rusty@rustcorp.com.au>2013-03-17 22:52:19 -0400
committerRusty Russell <rusty@rustcorp.com.au>2013-03-19 23:30:42 -0400
commit61d0b5a4b2777dcf5daef245e212b3c1fa8091ca (patch)
tree647f8fd729d5400341e5701d0d1eb668aad97f89 /tools
parenta9a0fef779074838230e04a322fd2bdc921f4f4f (diff)
tools/virtio: separate headers more.
This makes them a bit more like the kernel headers, so we can include more real kernel headers in our tests. In addition this means that we don't break tools/virtio with the next patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'tools')
-rw-r--r--tools/virtio/asm/barrier.h14
-rw-r--r--tools/virtio/linux/bug.h10
-rw-r--r--tools/virtio/linux/err.h26
-rw-r--r--tools/virtio/linux/export.h5
-rw-r--r--tools/virtio/linux/irqreturn.h1
-rw-r--r--tools/virtio/linux/kernel.h112
-rw-r--r--tools/virtio/linux/module.h1
-rw-r--r--tools/virtio/linux/printk.h4
-rw-r--r--tools/virtio/linux/ratelimit.h4
-rw-r--r--tools/virtio/linux/scatterlist.h173
-rw-r--r--tools/virtio/linux/types.h28
-rw-r--r--tools/virtio/linux/uaccess.h50
-rw-r--r--tools/virtio/linux/uio.h1
-rw-r--r--tools/virtio/linux/virtio.h150
-rw-r--r--tools/virtio/linux/virtio_config.h6
-rw-r--r--tools/virtio/linux/virtio_ring.h1
-rw-r--r--tools/virtio/linux/vringh.h1
-rw-r--r--tools/virtio/uapi/linux/uio.h1
-rw-r--r--tools/virtio/uapi/linux/virtio_config.h1
-rw-r--r--tools/virtio/uapi/linux/virtio_ring.h4
-rw-r--r--tools/virtio/virtio_test.c4
21 files changed, 450 insertions, 147 deletions
diff --git a/tools/virtio/asm/barrier.h b/tools/virtio/asm/barrier.h
new file mode 100644
index 000000000000..aff61e13306c
--- /dev/null
+++ b/tools/virtio/asm/barrier.h
@@ -0,0 +1,14 @@
1#if defined(__i386__) || defined(__x86_64__)
2#define barrier() asm volatile("" ::: "memory")
3#define mb() __sync_synchronize()
4
5#define smp_mb() mb()
6# define smp_rmb() barrier()
7# define smp_wmb() barrier()
8/* Weak barriers should be used. If not - it's a bug */
9# define rmb() abort()
10# define wmb() abort()
11#else
12#error Please fill in barrier macros
13#endif
14
diff --git a/tools/virtio/linux/bug.h b/tools/virtio/linux/bug.h
new file mode 100644
index 000000000000..fb94f0787c47
--- /dev/null
+++ b/tools/virtio/linux/bug.h
@@ -0,0 +1,10 @@
1#ifndef BUG_H
2#define BUG_H
3
4#define BUG_ON(__BUG_ON_cond) assert(!(__BUG_ON_cond))
5
6#define BUILD_BUG_ON(x)
7
8#define BUG() abort()
9
10#endif /* BUG_H */
diff --git a/tools/virtio/linux/err.h b/tools/virtio/linux/err.h
new file mode 100644
index 000000000000..e32eff8b2a14
--- /dev/null
+++ b/tools/virtio/linux/err.h
@@ -0,0 +1,26 @@
1#ifndef ERR_H
2#define ERR_H
3#define MAX_ERRNO 4095
4
5#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
6
7static inline void * __must_check ERR_PTR(long error)
8{
9 return (void *) error;
10}
11
12static inline long __must_check PTR_ERR(const void *ptr)
13{
14 return (long) ptr;
15}
16
17static inline long __must_check IS_ERR(const void *ptr)
18{
19 return IS_ERR_VALUE((unsigned long)ptr);
20}
21
22static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
23{
24 return !ptr || IS_ERR_VALUE((unsigned long)ptr);
25}
26#endif /* ERR_H */
diff --git a/tools/virtio/linux/export.h b/tools/virtio/linux/export.h
new file mode 100644
index 000000000000..7311d326894a
--- /dev/null
+++ b/tools/virtio/linux/export.h
@@ -0,0 +1,5 @@
1#define EXPORT_SYMBOL(sym)
2#define EXPORT_SYMBOL_GPL(sym)
3#define EXPORT_SYMBOL_GPL_FUTURE(sym)
4#define EXPORT_UNUSED_SYMBOL(sym)
5#define EXPORT_UNUSED_SYMBOL_GPL(sym)
diff --git a/tools/virtio/linux/irqreturn.h b/tools/virtio/linux/irqreturn.h
new file mode 100644
index 000000000000..a3c4e7be7089
--- /dev/null
+++ b/tools/virtio/linux/irqreturn.h
@@ -0,0 +1 @@
#include "../../../include/linux/irqreturn.h"
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
new file mode 100644
index 000000000000..fba705963968
--- /dev/null
+++ b/tools/virtio/linux/kernel.h
@@ -0,0 +1,112 @@
1#ifndef KERNEL_H
2#define KERNEL_H
3#include <stdbool.h>
4#include <stdlib.h>
5#include <stddef.h>
6#include <stdio.h>
7#include <string.h>
8#include <assert.h>
9#include <stdarg.h>
10
11#include <linux/types.h>
12#include <linux/printk.h>
13#include <linux/bug.h>
14#include <errno.h>
15#include <unistd.h>
16#include <asm/barrier.h>
17
18#define CONFIG_SMP
19
20#define PAGE_SIZE getpagesize()
21#define PAGE_MASK (~(PAGE_SIZE-1))
22
23typedef unsigned long long dma_addr_t;
24typedef size_t __kernel_size_t;
25
26struct page {
27 unsigned long long dummy;
28};
29
30/* Physical == Virtual */
31#define virt_to_phys(p) ((unsigned long)p)
32#define phys_to_virt(a) ((void *)(unsigned long)(a))
33/* Page address: Virtual / 4K */
34#define page_to_phys(p) ((dma_addr_t)(unsigned long)(p))
35#define virt_to_page(p) ((struct page *)((unsigned long)p & PAGE_MASK))
36
37#define offset_in_page(p) (((unsigned long)p) % PAGE_SIZE)
38
39#define __printf(a,b) __attribute__((format(printf,a,b)))
40
41typedef enum {
42 GFP_KERNEL,
43 GFP_ATOMIC,
44 __GFP_HIGHMEM,
45 __GFP_HIGH
46} gfp_t;
47
48#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
49
50extern void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end;
51static inline void *kmalloc(size_t s, gfp_t gfp)
52{
53 if (__kmalloc_fake)
54 return __kmalloc_fake;
55 return malloc(s);
56}
57
58static inline void kfree(void *p)
59{
60 if (p >= __kfree_ignore_start && p < __kfree_ignore_end)
61 return;
62 free(p);
63}
64
65static inline void *krealloc(void *p, size_t s, gfp_t gfp)
66{
67 return realloc(p, s);
68}
69
70
71static inline unsigned long __get_free_page(gfp_t gfp)
72{
73 void *p;
74
75 posix_memalign(&p, PAGE_SIZE, PAGE_SIZE);
76 return (unsigned long)p;
77}
78
79static inline void free_page(unsigned long addr)
80{
81 free((void *)addr);
82}
83
84#define container_of(ptr, type, member) ({ \
85 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
86 (type *)( (char *)__mptr - offsetof(type,member) );})
87
88#define uninitialized_var(x) x = x
89
90# ifndef likely
91# define likely(x) (__builtin_expect(!!(x), 1))
92# endif
93# ifndef unlikely
94# define unlikely(x) (__builtin_expect(!!(x), 0))
95# endif
96
97#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
98#ifdef DEBUG
99#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
100#else
101#define pr_debug(format, ...) do {} while (0)
102#endif
103#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
104#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
105
106#define min(x, y) ({ \
107 typeof(x) _min1 = (x); \
108 typeof(y) _min2 = (y); \
109 (void) (&_min1 == &_min2); \
110 _min1 < _min2 ? _min1 : _min2; })
111
112#endif /* KERNEL_H */
diff --git a/tools/virtio/linux/module.h b/tools/virtio/linux/module.h
index e69de29bb2d1..3039a7e972b6 100644
--- a/tools/virtio/linux/module.h
+++ b/tools/virtio/linux/module.h
@@ -0,0 +1 @@
#include <linux/export.h>
diff --git a/tools/virtio/linux/printk.h b/tools/virtio/linux/printk.h
new file mode 100644
index 000000000000..9f2423bd89c2
--- /dev/null
+++ b/tools/virtio/linux/printk.h
@@ -0,0 +1,4 @@
1#include "../../../include/linux/kern_levels.h"
2
3#define printk printf
4#define vprintk vprintf
diff --git a/tools/virtio/linux/ratelimit.h b/tools/virtio/linux/ratelimit.h
new file mode 100644
index 000000000000..dcce1725f90d
--- /dev/null
+++ b/tools/virtio/linux/ratelimit.h
@@ -0,0 +1,4 @@
1#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init) int name = 0
2
3#define __ratelimit(x) (*(x))
4
diff --git a/tools/virtio/linux/scatterlist.h b/tools/virtio/linux/scatterlist.h
new file mode 100644
index 000000000000..b2cf7d0f6133
--- /dev/null
+++ b/tools/virtio/linux/scatterlist.h
@@ -0,0 +1,173 @@
1#ifndef SCATTERLIST_H
2#define SCATTERLIST_H
3#include <linux/kernel.h>
4
5struct scatterlist {
6 unsigned long page_link;
7 unsigned int offset;
8 unsigned int length;
9 dma_addr_t dma_address;
10};
11
12/* Scatterlist helpers, stolen from linux/scatterlist.h */
13#define sg_is_chain(sg) ((sg)->page_link & 0x01)
14#define sg_is_last(sg) ((sg)->page_link & 0x02)
15#define sg_chain_ptr(sg) \
16 ((struct scatterlist *) ((sg)->page_link & ~0x03))
17
18/**
19 * sg_assign_page - Assign a given page to an SG entry
20 * @sg: SG entry
21 * @page: The page
22 *
23 * Description:
24 * Assign page to sg entry. Also see sg_set_page(), the most commonly used
25 * variant.
26 *
27 **/
28static inline void sg_assign_page(struct scatterlist *sg, struct page *page)
29{
30 unsigned long page_link = sg->page_link & 0x3;
31
32 /*
33 * In order for the low bit stealing approach to work, pages
34 * must be aligned at a 32-bit boundary as a minimum.
35 */
36 BUG_ON((unsigned long) page & 0x03);
37#ifdef CONFIG_DEBUG_SG
38 BUG_ON(sg->sg_magic != SG_MAGIC);
39 BUG_ON(sg_is_chain(sg));
40#endif
41 sg->page_link = page_link | (unsigned long) page;
42}
43
44/**
45 * sg_set_page - Set sg entry to point at given page
46 * @sg: SG entry
47 * @page: The page
48 * @len: Length of data
49 * @offset: Offset into page
50 *
51 * Description:
52 * Use this function to set an sg entry pointing at a page, never assign
53 * the page directly. We encode sg table information in the lower bits
54 * of the page pointer. See sg_page() for looking up the page belonging
55 * to an sg entry.
56 *
57 **/
58static inline void sg_set_page(struct scatterlist *sg, struct page *page,
59 unsigned int len, unsigned int offset)
60{
61 sg_assign_page(sg, page);
62 sg->offset = offset;
63 sg->length = len;
64}
65
66static inline struct page *sg_page(struct scatterlist *sg)
67{
68#ifdef CONFIG_DEBUG_SG
69 BUG_ON(sg->sg_magic != SG_MAGIC);
70 BUG_ON(sg_is_chain(sg));
71#endif
72 return (struct page *)((sg)->page_link & ~0x3);
73}
74
75/*
76 * Loop over each sg element, following the pointer to a new list if necessary
77 */
78#define for_each_sg(sglist, sg, nr, __i) \
79 for (__i = 0, sg = (sglist); __i < (nr); __i++, sg = sg_next(sg))
80
81/**
82 * sg_chain - Chain two sglists together
83 * @prv: First scatterlist
84 * @prv_nents: Number of entries in prv
85 * @sgl: Second scatterlist
86 *
87 * Description:
88 * Links @prv@ and @sgl@ together, to form a longer scatterlist.
89 *
90 **/
91static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
92 struct scatterlist *sgl)
93{
94 /*
95 * offset and length are unused for chain entry. Clear them.
96 */
97 prv[prv_nents - 1].offset = 0;
98 prv[prv_nents - 1].length = 0;
99
100 /*
101 * Set lowest bit to indicate a link pointer, and make sure to clear
102 * the termination bit if it happens to be set.
103 */
104 prv[prv_nents - 1].page_link = ((unsigned long) sgl | 0x01) & ~0x02;
105}
106
107/**
108 * sg_mark_end - Mark the end of the scatterlist
109 * @sg: SG entryScatterlist
110 *
111 * Description:
112 * Marks the passed in sg entry as the termination point for the sg
113 * table. A call to sg_next() on this entry will return NULL.
114 *
115 **/
116static inline void sg_mark_end(struct scatterlist *sg)
117{
118#ifdef CONFIG_DEBUG_SG
119 BUG_ON(sg->sg_magic != SG_MAGIC);
120#endif
121 /*
122 * Set termination bit, clear potential chain bit
123 */
124 sg->page_link |= 0x02;
125 sg->page_link &= ~0x01;
126}
127
128static inline struct scatterlist *sg_next(struct scatterlist *sg)
129{
130#ifdef CONFIG_DEBUG_SG
131 BUG_ON(sg->sg_magic != SG_MAGIC);
132#endif
133 if (sg_is_last(sg))
134 return NULL;
135
136 sg++;
137 if (unlikely(sg_is_chain(sg)))
138 sg = sg_chain_ptr(sg);
139
140 return sg;
141}
142
143static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents)
144{
145 memset(sgl, 0, sizeof(*sgl) * nents);
146#ifdef CONFIG_DEBUG_SG
147 {
148 unsigned int i;
149 for (i = 0; i < nents; i++)
150 sgl[i].sg_magic = SG_MAGIC;
151 }
152#endif
153 sg_mark_end(&sgl[nents - 1]);
154}
155
156static inline dma_addr_t sg_phys(struct scatterlist *sg)
157{
158 return page_to_phys(sg_page(sg)) + sg->offset;
159}
160
161static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
162 unsigned int buflen)
163{
164 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
165}
166
167static inline void sg_init_one(struct scatterlist *sg,
168 const void *buf, unsigned int buflen)
169{
170 sg_init_table(sg, 1);
171 sg_set_buf(sg, buf, buflen);
172}
173#endif /* SCATTERLIST_H */
diff --git a/tools/virtio/linux/types.h b/tools/virtio/linux/types.h
new file mode 100644
index 000000000000..f8ebb9a2b3d6
--- /dev/null
+++ b/tools/virtio/linux/types.h
@@ -0,0 +1,28 @@
1#ifndef TYPES_H
2#define TYPES_H
3#include <stdint.h>
4
5#define __force
6#define __user
7#define __must_check
8#define __cold
9
10typedef uint64_t u64;
11typedef int64_t s64;
12typedef uint32_t u32;
13typedef int32_t s32;
14typedef uint16_t u16;
15typedef int16_t s16;
16typedef uint8_t u8;
17typedef int8_t s8;
18
19typedef uint64_t __u64;
20typedef int64_t __s64;
21typedef uint32_t __u32;
22typedef int32_t __s32;
23typedef uint16_t __u16;
24typedef int16_t __s16;
25typedef uint8_t __u8;
26typedef int8_t __s8;
27
28#endif /* TYPES_H */
diff --git a/tools/virtio/linux/uaccess.h b/tools/virtio/linux/uaccess.h
new file mode 100644
index 000000000000..0a578fe18653
--- /dev/null
+++ b/tools/virtio/linux/uaccess.h
@@ -0,0 +1,50 @@
1#ifndef UACCESS_H
2#define UACCESS_H
3extern void *__user_addr_min, *__user_addr_max;
4
5#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
6
7static inline void __chk_user_ptr(const volatile void *p, size_t size)
8{
9 assert(p >= __user_addr_min && p + size <= __user_addr_max);
10}
11
12#define put_user(x, ptr) \
13({ \
14 typeof(ptr) __pu_ptr = (ptr); \
15 __chk_user_ptr(__pu_ptr, sizeof(*__pu_ptr)); \
16 ACCESS_ONCE(*(__pu_ptr)) = x; \
17 0; \
18})
19
20#define get_user(x, ptr) \
21({ \
22 typeof(ptr) __pu_ptr = (ptr); \
23 __chk_user_ptr(__pu_ptr, sizeof(*__pu_ptr)); \
24 x = ACCESS_ONCE(*(__pu_ptr)); \
25 0; \
26})
27
28static void volatile_memcpy(volatile char *to, const volatile char *from,
29 unsigned long n)
30{
31 while (n--)
32 *(to++) = *(from++);
33}
34
35static inline int copy_from_user(void *to, const void __user volatile *from,
36 unsigned long n)
37{
38 __chk_user_ptr(from, n);
39 volatile_memcpy(to, from, n);
40 return 0;
41}
42
43static inline int copy_to_user(void __user volatile *to, const void *from,
44 unsigned long n)
45{
46 __chk_user_ptr(to, n);
47 volatile_memcpy(to, from, n);
48 return 0;
49}
50#endif /* UACCESS_H */
diff --git a/tools/virtio/linux/uio.h b/tools/virtio/linux/uio.h
new file mode 100644
index 000000000000..ecbdf922b0f4
--- /dev/null
+++ b/tools/virtio/linux/uio.h
@@ -0,0 +1 @@
#include "../../../include/linux/uio.h"
diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h
index 390c4cb3b018..e4af6591f5ff 100644
--- a/tools/virtio/linux/virtio.h
+++ b/tools/virtio/linux/virtio.h
@@ -1,129 +1,7 @@
1#ifndef LINUX_VIRTIO_H 1#ifndef LINUX_VIRTIO_H
2#define LINUX_VIRTIO_H 2#define LINUX_VIRTIO_H
3 3#include <linux/scatterlist.h>
4#include <stdbool.h> 4#include <linux/kernel.h>
5#include <stdlib.h>
6#include <stddef.h>
7#include <stdio.h>
8#include <string.h>
9#include <assert.h>
10
11#include <linux/types.h>
12#include <errno.h>
13
14typedef unsigned long long dma_addr_t;
15
16struct scatterlist {
17 unsigned long page_link;
18 unsigned int offset;
19 unsigned int length;
20 dma_addr_t dma_address;
21};
22
23struct page {
24 unsigned long long dummy;
25};
26
27#define BUG_ON(__BUG_ON_cond) assert(!(__BUG_ON_cond))
28
29/* Physical == Virtual */
30#define virt_to_phys(p) ((unsigned long)p)
31#define phys_to_virt(a) ((void *)(unsigned long)(a))
32/* Page address: Virtual / 4K */
33#define virt_to_page(p) ((struct page*)((virt_to_phys(p) / 4096) * \
34 sizeof(struct page)))
35#define offset_in_page(p) (((unsigned long)p) % 4096)
36#define sg_phys(sg) ((sg->page_link & ~0x3) / sizeof(struct page) * 4096 + \
37 sg->offset)
38static inline void sg_mark_end(struct scatterlist *sg)
39{
40 /*
41 * Set termination bit, clear potential chain bit
42 */
43 sg->page_link |= 0x02;
44 sg->page_link &= ~0x01;
45}
46static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents)
47{
48 memset(sgl, 0, sizeof(*sgl) * nents);
49 sg_mark_end(&sgl[nents - 1]);
50}
51static inline void sg_assign_page(struct scatterlist *sg, struct page *page)
52{
53 unsigned long page_link = sg->page_link & 0x3;
54
55 /*
56 * In order for the low bit stealing approach to work, pages
57 * must be aligned at a 32-bit boundary as a minimum.
58 */
59 BUG_ON((unsigned long) page & 0x03);
60 sg->page_link = page_link | (unsigned long) page;
61}
62
63static inline void sg_set_page(struct scatterlist *sg, struct page *page,
64 unsigned int len, unsigned int offset)
65{
66 sg_assign_page(sg, page);
67 sg->offset = offset;
68 sg->length = len;
69}
70
71static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
72 unsigned int buflen)
73{
74 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
75}
76
77static inline void sg_init_one(struct scatterlist *sg, const void *buf, unsigned int buflen)
78{
79 sg_init_table(sg, 1);
80 sg_set_buf(sg, buf, buflen);
81}
82
83typedef __u16 u16;
84
85typedef enum {
86 GFP_KERNEL,
87 GFP_ATOMIC,
88 __GFP_HIGHMEM,
89 __GFP_HIGH
90} gfp_t;
91typedef enum {
92 IRQ_NONE,
93 IRQ_HANDLED
94} irqreturn_t;
95
96static inline void *kmalloc(size_t s, gfp_t gfp)
97{
98 return malloc(s);
99}
100
101static inline void kfree(void *p)
102{
103 free(p);
104}
105
106#define container_of(ptr, type, member) ({ \
107 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
108 (type *)( (char *)__mptr - offsetof(type,member) );})
109
110#define uninitialized_var(x) x = x
111
112# ifndef likely
113# define likely(x) (__builtin_expect(!!(x), 1))
114# endif
115# ifndef unlikely
116# define unlikely(x) (__builtin_expect(!!(x), 0))
117# endif
118
119#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
120#ifdef DEBUG
121#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
122#else
123#define pr_debug(format, ...) do {} while (0)
124#endif
125#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
126#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
127 5
128/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ 6/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */
129#define list_add_tail(a, b) do {} while (0) 7#define list_add_tail(a, b) do {} while (0)
@@ -133,6 +11,7 @@ static inline void kfree(void *p)
133#define BITS_PER_BYTE 8 11#define BITS_PER_BYTE 8
134#define BITS_PER_LONG (sizeof(long) * BITS_PER_BYTE) 12#define BITS_PER_LONG (sizeof(long) * BITS_PER_BYTE)
135#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) 13#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
14
136/* TODO: Not atomic as it should be: 15/* TODO: Not atomic as it should be:
137 * we don't use this for anything important. */ 16 * we don't use this for anything important. */
138static inline void clear_bit(int nr, volatile unsigned long *addr) 17static inline void clear_bit(int nr, volatile unsigned long *addr)
@@ -147,10 +26,6 @@ static inline int test_bit(int nr, const volatile unsigned long *addr)
147{ 26{
148 return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1))); 27 return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
149} 28}
150
151/* The only feature we care to support */
152#define virtio_has_feature(dev, feature) \
153 test_bit((feature), (dev)->features)
154/* end of stubs */ 29/* end of stubs */
155 30
156struct virtio_device { 31struct virtio_device {
@@ -170,28 +45,9 @@ struct virtqueue {
170 void *priv; 45 void *priv;
171}; 46};
172 47
173#define EXPORT_SYMBOL_GPL(__EXPORT_SYMBOL_GPL_name) \
174 void __EXPORT_SYMBOL_GPL##__EXPORT_SYMBOL_GPL_name() { \
175}
176#define MODULE_LICENSE(__MODULE_LICENSE_value) \ 48#define MODULE_LICENSE(__MODULE_LICENSE_value) \
177 const char *__MODULE_LICENSE_name = __MODULE_LICENSE_value 49 const char *__MODULE_LICENSE_name = __MODULE_LICENSE_value
178 50
179#define CONFIG_SMP
180
181#if defined(__i386__) || defined(__x86_64__)
182#define barrier() asm volatile("" ::: "memory")
183#define mb() __sync_synchronize()
184
185#define smp_mb() mb()
186# define smp_rmb() barrier()
187# define smp_wmb() barrier()
188/* Weak barriers should be used. If not - it's a bug */
189# define rmb() abort()
190# define wmb() abort()
191#else
192#error Please fill in barrier macros
193#endif
194
195/* Interfaces exported by virtio_ring. */ 51/* Interfaces exported by virtio_ring. */
196int virtqueue_add_buf(struct virtqueue *vq, 52int virtqueue_add_buf(struct virtqueue *vq,
197 struct scatterlist sg[], 53 struct scatterlist sg[],
diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h
new file mode 100644
index 000000000000..5049967f99f7
--- /dev/null
+++ b/tools/virtio/linux/virtio_config.h
@@ -0,0 +1,6 @@
1#define VIRTIO_TRANSPORT_F_START 28
2#define VIRTIO_TRANSPORT_F_END 32
3
4#define virtio_has_feature(dev, feature) \
5 test_bit((feature), (dev)->features)
6
diff --git a/tools/virtio/linux/virtio_ring.h b/tools/virtio/linux/virtio_ring.h
new file mode 100644
index 000000000000..8949c4e2772c
--- /dev/null
+++ b/tools/virtio/linux/virtio_ring.h
@@ -0,0 +1 @@
#include "../../../include/linux/virtio_ring.h"
diff --git a/tools/virtio/linux/vringh.h b/tools/virtio/linux/vringh.h
new file mode 100644
index 000000000000..9348957be56e
--- /dev/null
+++ b/tools/virtio/linux/vringh.h
@@ -0,0 +1 @@
#include "../../../include/linux/vringh.h"
diff --git a/tools/virtio/uapi/linux/uio.h b/tools/virtio/uapi/linux/uio.h
new file mode 100644
index 000000000000..7230e9002207
--- /dev/null
+++ b/tools/virtio/uapi/linux/uio.h
@@ -0,0 +1 @@
#include <sys/uio.h>
diff --git a/tools/virtio/uapi/linux/virtio_config.h b/tools/virtio/uapi/linux/virtio_config.h
new file mode 100644
index 000000000000..4c86675f0159
--- /dev/null
+++ b/tools/virtio/uapi/linux/virtio_config.h
@@ -0,0 +1 @@
#include "../../../../include/uapi/linux/virtio_config.h"
diff --git a/tools/virtio/uapi/linux/virtio_ring.h b/tools/virtio/uapi/linux/virtio_ring.h
new file mode 100644
index 000000000000..4d99c78234d3
--- /dev/null
+++ b/tools/virtio/uapi/linux/virtio_ring.h
@@ -0,0 +1,4 @@
1#ifndef VIRTIO_RING_H
2#define VIRTIO_RING_H
3#include "../../../../include/uapi/linux/virtio_ring.h"
4#endif /* VIRTIO_RING_H */
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index faf3f0c9d71f..814ae803c878 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -10,11 +10,15 @@
10#include <sys/stat.h> 10#include <sys/stat.h>
11#include <sys/types.h> 11#include <sys/types.h>
12#include <fcntl.h> 12#include <fcntl.h>
13#include <stdbool.h>
13#include <linux/vhost.h> 14#include <linux/vhost.h>
14#include <linux/virtio.h> 15#include <linux/virtio.h>
15#include <linux/virtio_ring.h> 16#include <linux/virtio_ring.h>
16#include "../../drivers/vhost/test.h" 17#include "../../drivers/vhost/test.h"
17 18
19/* Unused */
20void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end;
21
18struct vq_info { 22struct vq_info {
19 int kick; 23 int kick;
20 int call; 24 int call;