root / memory.c @ 750ecd44
History | View | Annotate | Download (43.4 kB)
1 | 093bc2cd | Avi Kivity | /*
|
---|---|---|---|
2 | 093bc2cd | Avi Kivity | * Physical memory management
|
3 | 093bc2cd | Avi Kivity | *
|
4 | 093bc2cd | Avi Kivity | * Copyright 2011 Red Hat, Inc. and/or its affiliates
|
5 | 093bc2cd | Avi Kivity | *
|
6 | 093bc2cd | Avi Kivity | * Authors:
|
7 | 093bc2cd | Avi Kivity | * Avi Kivity <avi@redhat.com>
|
8 | 093bc2cd | Avi Kivity | *
|
9 | 093bc2cd | Avi Kivity | * This work is licensed under the terms of the GNU GPL, version 2. See
|
10 | 093bc2cd | Avi Kivity | * the COPYING file in the top-level directory.
|
11 | 093bc2cd | Avi Kivity | *
|
12 | 093bc2cd | Avi Kivity | */
|
13 | 093bc2cd | Avi Kivity | |
14 | 093bc2cd | Avi Kivity | #include "memory.h" |
15 | 1c0ffa58 | Avi Kivity | #include "exec-memory.h" |
16 | 658b2224 | Avi Kivity | #include "ioport.h" |
17 | 74901c3b | Avi Kivity | #include "bitops.h" |
18 | 3e9d69e7 | Avi Kivity | #include "kvm.h" |
19 | 093bc2cd | Avi Kivity | #include <assert.h> |
20 | 093bc2cd | Avi Kivity | |
21 | 4ef4db86 | Avi Kivity | unsigned memory_region_transaction_depth = 0; |
22 | 4ef4db86 | Avi Kivity | |
23 | 093bc2cd | Avi Kivity | typedef struct AddrRange AddrRange; |
24 | 093bc2cd | Avi Kivity | |
25 | 8417cebf | Avi Kivity | /*
|
26 | 8417cebf | Avi Kivity | * Note using signed integers limits us to physical addresses at most
|
27 | 8417cebf | Avi Kivity | * 63 bits wide. They are needed for negative offsetting in aliases
|
28 | 8417cebf | Avi Kivity | * (large MemoryRegion::alias_offset).
|
29 | 8417cebf | Avi Kivity | */
|
30 | 093bc2cd | Avi Kivity | struct AddrRange {
|
31 | 08dafab4 | Avi Kivity | Int128 start; |
32 | 08dafab4 | Avi Kivity | Int128 size; |
33 | 093bc2cd | Avi Kivity | }; |
34 | 093bc2cd | Avi Kivity | |
35 | 08dafab4 | Avi Kivity | static AddrRange addrrange_make(Int128 start, Int128 size)
|
36 | 093bc2cd | Avi Kivity | { |
37 | 093bc2cd | Avi Kivity | return (AddrRange) { start, size };
|
38 | 093bc2cd | Avi Kivity | } |
39 | 093bc2cd | Avi Kivity | |
40 | 093bc2cd | Avi Kivity | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
41 | 093bc2cd | Avi Kivity | { |
42 | 08dafab4 | Avi Kivity | return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size);
|
43 | 093bc2cd | Avi Kivity | } |
44 | 093bc2cd | Avi Kivity | |
45 | 08dafab4 | Avi Kivity | static Int128 addrrange_end(AddrRange r)
|
46 | 093bc2cd | Avi Kivity | { |
47 | 08dafab4 | Avi Kivity | return int128_add(r.start, r.size);
|
48 | 093bc2cd | Avi Kivity | } |
49 | 093bc2cd | Avi Kivity | |
50 | 08dafab4 | Avi Kivity | static AddrRange addrrange_shift(AddrRange range, Int128 delta)
|
51 | 093bc2cd | Avi Kivity | { |
52 | 08dafab4 | Avi Kivity | int128_addto(&range.start, delta); |
53 | 093bc2cd | Avi Kivity | return range;
|
54 | 093bc2cd | Avi Kivity | } |
55 | 093bc2cd | Avi Kivity | |
56 | 08dafab4 | Avi Kivity | static bool addrrange_contains(AddrRange range, Int128 addr) |
57 | 08dafab4 | Avi Kivity | { |
58 | 08dafab4 | Avi Kivity | return int128_ge(addr, range.start)
|
59 | 08dafab4 | Avi Kivity | && int128_lt(addr, addrrange_end(range)); |
60 | 08dafab4 | Avi Kivity | } |
61 | 08dafab4 | Avi Kivity | |
62 | 093bc2cd | Avi Kivity | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
63 | 093bc2cd | Avi Kivity | { |
64 | 08dafab4 | Avi Kivity | return addrrange_contains(r1, r2.start)
|
65 | 08dafab4 | Avi Kivity | || addrrange_contains(r2, r1.start); |
66 | 093bc2cd | Avi Kivity | } |
67 | 093bc2cd | Avi Kivity | |
68 | 093bc2cd | Avi Kivity | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2)
|
69 | 093bc2cd | Avi Kivity | { |
70 | 08dafab4 | Avi Kivity | Int128 start = int128_max(r1.start, r2.start); |
71 | 08dafab4 | Avi Kivity | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
72 | 08dafab4 | Avi Kivity | return addrrange_make(start, int128_sub(end, start));
|
73 | 093bc2cd | Avi Kivity | } |
74 | 093bc2cd | Avi Kivity | |
75 | 093bc2cd | Avi Kivity | struct CoalescedMemoryRange {
|
76 | 093bc2cd | Avi Kivity | AddrRange addr; |
77 | 093bc2cd | Avi Kivity | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
78 | 093bc2cd | Avi Kivity | }; |
79 | 093bc2cd | Avi Kivity | |
80 | 3e9d69e7 | Avi Kivity | struct MemoryRegionIoeventfd {
|
81 | 3e9d69e7 | Avi Kivity | AddrRange addr; |
82 | 3e9d69e7 | Avi Kivity | bool match_data;
|
83 | 3e9d69e7 | Avi Kivity | uint64_t data; |
84 | 3e9d69e7 | Avi Kivity | int fd;
|
85 | 3e9d69e7 | Avi Kivity | }; |
86 | 3e9d69e7 | Avi Kivity | |
87 | 3e9d69e7 | Avi Kivity | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
88 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd b) |
89 | 3e9d69e7 | Avi Kivity | { |
90 | 08dafab4 | Avi Kivity | if (int128_lt(a.addr.start, b.addr.start)) {
|
91 | 3e9d69e7 | Avi Kivity | return true; |
92 | 08dafab4 | Avi Kivity | } else if (int128_gt(a.addr.start, b.addr.start)) { |
93 | 3e9d69e7 | Avi Kivity | return false; |
94 | 08dafab4 | Avi Kivity | } else if (int128_lt(a.addr.size, b.addr.size)) { |
95 | 3e9d69e7 | Avi Kivity | return true; |
96 | 08dafab4 | Avi Kivity | } else if (int128_gt(a.addr.size, b.addr.size)) { |
97 | 3e9d69e7 | Avi Kivity | return false; |
98 | 3e9d69e7 | Avi Kivity | } else if (a.match_data < b.match_data) { |
99 | 3e9d69e7 | Avi Kivity | return true; |
100 | 3e9d69e7 | Avi Kivity | } else if (a.match_data > b.match_data) { |
101 | 3e9d69e7 | Avi Kivity | return false; |
102 | 3e9d69e7 | Avi Kivity | } else if (a.match_data) { |
103 | 3e9d69e7 | Avi Kivity | if (a.data < b.data) {
|
104 | 3e9d69e7 | Avi Kivity | return true; |
105 | 3e9d69e7 | Avi Kivity | } else if (a.data > b.data) { |
106 | 3e9d69e7 | Avi Kivity | return false; |
107 | 3e9d69e7 | Avi Kivity | } |
108 | 3e9d69e7 | Avi Kivity | } |
109 | 3e9d69e7 | Avi Kivity | if (a.fd < b.fd) {
|
110 | 3e9d69e7 | Avi Kivity | return true; |
111 | 3e9d69e7 | Avi Kivity | } else if (a.fd > b.fd) { |
112 | 3e9d69e7 | Avi Kivity | return false; |
113 | 3e9d69e7 | Avi Kivity | } |
114 | 3e9d69e7 | Avi Kivity | return false; |
115 | 3e9d69e7 | Avi Kivity | } |
116 | 3e9d69e7 | Avi Kivity | |
117 | 3e9d69e7 | Avi Kivity | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
118 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd b) |
119 | 3e9d69e7 | Avi Kivity | { |
120 | 3e9d69e7 | Avi Kivity | return !memory_region_ioeventfd_before(a, b)
|
121 | 3e9d69e7 | Avi Kivity | && !memory_region_ioeventfd_before(b, a); |
122 | 3e9d69e7 | Avi Kivity | } |
123 | 3e9d69e7 | Avi Kivity | |
124 | 093bc2cd | Avi Kivity | typedef struct FlatRange FlatRange; |
125 | 093bc2cd | Avi Kivity | typedef struct FlatView FlatView; |
126 | 093bc2cd | Avi Kivity | |
127 | 093bc2cd | Avi Kivity | /* Range of memory in the global map. Addresses are absolute. */
|
128 | 093bc2cd | Avi Kivity | struct FlatRange {
|
129 | 093bc2cd | Avi Kivity | MemoryRegion *mr; |
130 | 093bc2cd | Avi Kivity | target_phys_addr_t offset_in_region; |
131 | 093bc2cd | Avi Kivity | AddrRange addr; |
132 | 5a583347 | Avi Kivity | uint8_t dirty_log_mask; |
133 | d0a9b5bc | Avi Kivity | bool readable;
|
134 | fb1cd6f9 | Avi Kivity | bool readonly;
|
135 | 093bc2cd | Avi Kivity | }; |
136 | 093bc2cd | Avi Kivity | |
137 | 093bc2cd | Avi Kivity | /* Flattened global view of current active memory hierarchy. Kept in sorted
|
138 | 093bc2cd | Avi Kivity | * order.
|
139 | 093bc2cd | Avi Kivity | */
|
140 | 093bc2cd | Avi Kivity | struct FlatView {
|
141 | 093bc2cd | Avi Kivity | FlatRange *ranges; |
142 | 093bc2cd | Avi Kivity | unsigned nr;
|
143 | 093bc2cd | Avi Kivity | unsigned nr_allocated;
|
144 | 093bc2cd | Avi Kivity | }; |
145 | 093bc2cd | Avi Kivity | |
146 | cc31e6e7 | Avi Kivity | typedef struct AddressSpace AddressSpace; |
147 | cc31e6e7 | Avi Kivity | typedef struct AddressSpaceOps AddressSpaceOps; |
148 | cc31e6e7 | Avi Kivity | |
149 | cc31e6e7 | Avi Kivity | /* A system address space - I/O, memory, etc. */
|
150 | cc31e6e7 | Avi Kivity | struct AddressSpace {
|
151 | cc31e6e7 | Avi Kivity | const AddressSpaceOps *ops;
|
152 | cc31e6e7 | Avi Kivity | MemoryRegion *root; |
153 | cc31e6e7 | Avi Kivity | FlatView current_map; |
154 | 3e9d69e7 | Avi Kivity | int ioeventfd_nb;
|
155 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *ioeventfds; |
156 | cc31e6e7 | Avi Kivity | }; |
157 | cc31e6e7 | Avi Kivity | |
158 | cc31e6e7 | Avi Kivity | struct AddressSpaceOps {
|
159 | cc31e6e7 | Avi Kivity | void (*range_add)(AddressSpace *as, FlatRange *fr);
|
160 | cc31e6e7 | Avi Kivity | void (*range_del)(AddressSpace *as, FlatRange *fr);
|
161 | cc31e6e7 | Avi Kivity | void (*log_start)(AddressSpace *as, FlatRange *fr);
|
162 | cc31e6e7 | Avi Kivity | void (*log_stop)(AddressSpace *as, FlatRange *fr);
|
163 | 3e9d69e7 | Avi Kivity | void (*ioeventfd_add)(AddressSpace *as, MemoryRegionIoeventfd *fd);
|
164 | 3e9d69e7 | Avi Kivity | void (*ioeventfd_del)(AddressSpace *as, MemoryRegionIoeventfd *fd);
|
165 | cc31e6e7 | Avi Kivity | }; |
166 | cc31e6e7 | Avi Kivity | |
167 | 093bc2cd | Avi Kivity | #define FOR_EACH_FLAT_RANGE(var, view) \
|
168 | 093bc2cd | Avi Kivity | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
|
169 | 093bc2cd | Avi Kivity | |
170 | 093bc2cd | Avi Kivity | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
171 | 093bc2cd | Avi Kivity | { |
172 | 093bc2cd | Avi Kivity | return a->mr == b->mr
|
173 | 093bc2cd | Avi Kivity | && addrrange_equal(a->addr, b->addr) |
174 | d0a9b5bc | Avi Kivity | && a->offset_in_region == b->offset_in_region |
175 | fb1cd6f9 | Avi Kivity | && a->readable == b->readable |
176 | fb1cd6f9 | Avi Kivity | && a->readonly == b->readonly; |
177 | 093bc2cd | Avi Kivity | } |
178 | 093bc2cd | Avi Kivity | |
179 | 093bc2cd | Avi Kivity | static void flatview_init(FlatView *view) |
180 | 093bc2cd | Avi Kivity | { |
181 | 093bc2cd | Avi Kivity | view->ranges = NULL;
|
182 | 093bc2cd | Avi Kivity | view->nr = 0;
|
183 | 093bc2cd | Avi Kivity | view->nr_allocated = 0;
|
184 | 093bc2cd | Avi Kivity | } |
185 | 093bc2cd | Avi Kivity | |
186 | 093bc2cd | Avi Kivity | /* Insert a range into a given position. Caller is responsible for maintaining
|
187 | 093bc2cd | Avi Kivity | * sorting order.
|
188 | 093bc2cd | Avi Kivity | */
|
189 | 093bc2cd | Avi Kivity | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
190 | 093bc2cd | Avi Kivity | { |
191 | 093bc2cd | Avi Kivity | if (view->nr == view->nr_allocated) {
|
192 | 093bc2cd | Avi Kivity | view->nr_allocated = MAX(2 * view->nr, 10); |
193 | 7267c094 | Anthony Liguori | view->ranges = g_realloc(view->ranges, |
194 | 093bc2cd | Avi Kivity | view->nr_allocated * sizeof(*view->ranges));
|
195 | 093bc2cd | Avi Kivity | } |
196 | 093bc2cd | Avi Kivity | memmove(view->ranges + pos + 1, view->ranges + pos,
|
197 | 093bc2cd | Avi Kivity | (view->nr - pos) * sizeof(FlatRange));
|
198 | 093bc2cd | Avi Kivity | view->ranges[pos] = *range; |
199 | 093bc2cd | Avi Kivity | ++view->nr; |
200 | 093bc2cd | Avi Kivity | } |
201 | 093bc2cd | Avi Kivity | |
202 | 093bc2cd | Avi Kivity | static void flatview_destroy(FlatView *view) |
203 | 093bc2cd | Avi Kivity | { |
204 | 7267c094 | Anthony Liguori | g_free(view->ranges); |
205 | 093bc2cd | Avi Kivity | } |
206 | 093bc2cd | Avi Kivity | |
207 | 3d8e6bf9 | Avi Kivity | static bool can_merge(FlatRange *r1, FlatRange *r2) |
208 | 3d8e6bf9 | Avi Kivity | { |
209 | 08dafab4 | Avi Kivity | return int128_eq(addrrange_end(r1->addr), r2->addr.start)
|
210 | 3d8e6bf9 | Avi Kivity | && r1->mr == r2->mr |
211 | 08dafab4 | Avi Kivity | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
212 | 08dafab4 | Avi Kivity | r1->addr.size), |
213 | 08dafab4 | Avi Kivity | int128_make64(r2->offset_in_region)) |
214 | d0a9b5bc | Avi Kivity | && r1->dirty_log_mask == r2->dirty_log_mask |
215 | fb1cd6f9 | Avi Kivity | && r1->readable == r2->readable |
216 | fb1cd6f9 | Avi Kivity | && r1->readonly == r2->readonly; |
217 | 3d8e6bf9 | Avi Kivity | } |
218 | 3d8e6bf9 | Avi Kivity | |
219 | 3d8e6bf9 | Avi Kivity | /* Attempt to simplify a view by merging ajacent ranges */
|
220 | 3d8e6bf9 | Avi Kivity | static void flatview_simplify(FlatView *view) |
221 | 3d8e6bf9 | Avi Kivity | { |
222 | 3d8e6bf9 | Avi Kivity | unsigned i, j;
|
223 | 3d8e6bf9 | Avi Kivity | |
224 | 3d8e6bf9 | Avi Kivity | i = 0;
|
225 | 3d8e6bf9 | Avi Kivity | while (i < view->nr) {
|
226 | 3d8e6bf9 | Avi Kivity | j = i + 1;
|
227 | 3d8e6bf9 | Avi Kivity | while (j < view->nr
|
228 | 3d8e6bf9 | Avi Kivity | && can_merge(&view->ranges[j-1], &view->ranges[j])) {
|
229 | 08dafab4 | Avi Kivity | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
230 | 3d8e6bf9 | Avi Kivity | ++j; |
231 | 3d8e6bf9 | Avi Kivity | } |
232 | 3d8e6bf9 | Avi Kivity | ++i; |
233 | 3d8e6bf9 | Avi Kivity | memmove(&view->ranges[i], &view->ranges[j], |
234 | 3d8e6bf9 | Avi Kivity | (view->nr - j) * sizeof(view->ranges[j]));
|
235 | 3d8e6bf9 | Avi Kivity | view->nr -= j - i; |
236 | 3d8e6bf9 | Avi Kivity | } |
237 | 3d8e6bf9 | Avi Kivity | } |
238 | 3d8e6bf9 | Avi Kivity | |
239 | 164a4dcd | Avi Kivity | static void memory_region_read_accessor(void *opaque, |
240 | 164a4dcd | Avi Kivity | target_phys_addr_t addr, |
241 | 164a4dcd | Avi Kivity | uint64_t *value, |
242 | 164a4dcd | Avi Kivity | unsigned size,
|
243 | 164a4dcd | Avi Kivity | unsigned shift,
|
244 | 164a4dcd | Avi Kivity | uint64_t mask) |
245 | 164a4dcd | Avi Kivity | { |
246 | 164a4dcd | Avi Kivity | MemoryRegion *mr = opaque; |
247 | 164a4dcd | Avi Kivity | uint64_t tmp; |
248 | 164a4dcd | Avi Kivity | |
249 | 164a4dcd | Avi Kivity | tmp = mr->ops->read(mr->opaque, addr, size); |
250 | 164a4dcd | Avi Kivity | *value |= (tmp & mask) << shift; |
251 | 164a4dcd | Avi Kivity | } |
252 | 164a4dcd | Avi Kivity | |
253 | 164a4dcd | Avi Kivity | static void memory_region_write_accessor(void *opaque, |
254 | 164a4dcd | Avi Kivity | target_phys_addr_t addr, |
255 | 164a4dcd | Avi Kivity | uint64_t *value, |
256 | 164a4dcd | Avi Kivity | unsigned size,
|
257 | 164a4dcd | Avi Kivity | unsigned shift,
|
258 | 164a4dcd | Avi Kivity | uint64_t mask) |
259 | 164a4dcd | Avi Kivity | { |
260 | 164a4dcd | Avi Kivity | MemoryRegion *mr = opaque; |
261 | 164a4dcd | Avi Kivity | uint64_t tmp; |
262 | 164a4dcd | Avi Kivity | |
263 | 164a4dcd | Avi Kivity | tmp = (*value >> shift) & mask; |
264 | 164a4dcd | Avi Kivity | mr->ops->write(mr->opaque, addr, tmp, size); |
265 | 164a4dcd | Avi Kivity | } |
266 | 164a4dcd | Avi Kivity | |
267 | 164a4dcd | Avi Kivity | static void access_with_adjusted_size(target_phys_addr_t addr, |
268 | 164a4dcd | Avi Kivity | uint64_t *value, |
269 | 164a4dcd | Avi Kivity | unsigned size,
|
270 | 164a4dcd | Avi Kivity | unsigned access_size_min,
|
271 | 164a4dcd | Avi Kivity | unsigned access_size_max,
|
272 | 164a4dcd | Avi Kivity | void (*access)(void *opaque, |
273 | 164a4dcd | Avi Kivity | target_phys_addr_t addr, |
274 | 164a4dcd | Avi Kivity | uint64_t *value, |
275 | 164a4dcd | Avi Kivity | unsigned size,
|
276 | 164a4dcd | Avi Kivity | unsigned shift,
|
277 | 164a4dcd | Avi Kivity | uint64_t mask), |
278 | 164a4dcd | Avi Kivity | void *opaque)
|
279 | 164a4dcd | Avi Kivity | { |
280 | 164a4dcd | Avi Kivity | uint64_t access_mask; |
281 | 164a4dcd | Avi Kivity | unsigned access_size;
|
282 | 164a4dcd | Avi Kivity | unsigned i;
|
283 | 164a4dcd | Avi Kivity | |
284 | 164a4dcd | Avi Kivity | if (!access_size_min) {
|
285 | 164a4dcd | Avi Kivity | access_size_min = 1;
|
286 | 164a4dcd | Avi Kivity | } |
287 | 164a4dcd | Avi Kivity | if (!access_size_max) {
|
288 | 164a4dcd | Avi Kivity | access_size_max = 4;
|
289 | 164a4dcd | Avi Kivity | } |
290 | 164a4dcd | Avi Kivity | access_size = MAX(MIN(size, access_size_max), access_size_min); |
291 | 164a4dcd | Avi Kivity | access_mask = -1ULL >> (64 - access_size * 8); |
292 | 164a4dcd | Avi Kivity | for (i = 0; i < size; i += access_size) { |
293 | 164a4dcd | Avi Kivity | /* FIXME: big-endian support */
|
294 | 164a4dcd | Avi Kivity | access(opaque, addr + i, value, access_size, i * 8, access_mask);
|
295 | 164a4dcd | Avi Kivity | } |
296 | 164a4dcd | Avi Kivity | } |
297 | 164a4dcd | Avi Kivity | |
298 | 16ef61c9 | Avi Kivity | static void memory_region_prepare_ram_addr(MemoryRegion *mr); |
299 | 16ef61c9 | Avi Kivity | |
300 | cc31e6e7 | Avi Kivity | static void as_memory_range_add(AddressSpace *as, FlatRange *fr) |
301 | cc31e6e7 | Avi Kivity | { |
302 | cc31e6e7 | Avi Kivity | ram_addr_t phys_offset, region_offset; |
303 | cc31e6e7 | Avi Kivity | |
304 | 16ef61c9 | Avi Kivity | memory_region_prepare_ram_addr(fr->mr); |
305 | 16ef61c9 | Avi Kivity | |
306 | cc31e6e7 | Avi Kivity | phys_offset = fr->mr->ram_addr; |
307 | cc31e6e7 | Avi Kivity | region_offset = fr->offset_in_region; |
308 | cc31e6e7 | Avi Kivity | /* cpu_register_physical_memory_log() wants region_offset for
|
309 | cc31e6e7 | Avi Kivity | * mmio, but prefers offseting phys_offset for RAM. Humour it.
|
310 | cc31e6e7 | Avi Kivity | */
|
311 | cc31e6e7 | Avi Kivity | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
|
312 | cc31e6e7 | Avi Kivity | phys_offset += region_offset; |
313 | cc31e6e7 | Avi Kivity | region_offset = 0;
|
314 | cc31e6e7 | Avi Kivity | } |
315 | cc31e6e7 | Avi Kivity | |
316 | d0a9b5bc | Avi Kivity | if (!fr->readable) {
|
317 | b5fe14cc | Avi Kivity | phys_offset &= ~TARGET_PAGE_MASK & ~IO_MEM_ROMD; |
318 | d0a9b5bc | Avi Kivity | } |
319 | d0a9b5bc | Avi Kivity | |
320 | fb1cd6f9 | Avi Kivity | if (fr->readonly) {
|
321 | fb1cd6f9 | Avi Kivity | phys_offset |= IO_MEM_ROM; |
322 | fb1cd6f9 | Avi Kivity | } |
323 | fb1cd6f9 | Avi Kivity | |
324 | 08dafab4 | Avi Kivity | cpu_register_physical_memory_log(int128_get64(fr->addr.start), |
325 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size), |
326 | cc31e6e7 | Avi Kivity | phys_offset, |
327 | cc31e6e7 | Avi Kivity | region_offset, |
328 | cc31e6e7 | Avi Kivity | fr->dirty_log_mask); |
329 | cc31e6e7 | Avi Kivity | } |
330 | cc31e6e7 | Avi Kivity | |
331 | cc31e6e7 | Avi Kivity | static void as_memory_range_del(AddressSpace *as, FlatRange *fr) |
332 | cc31e6e7 | Avi Kivity | { |
333 | 39b796f2 | Avi Kivity | if (fr->dirty_log_mask) {
|
334 | 08dafab4 | Avi Kivity | Int128 end = addrrange_end(fr->addr); |
335 | 08dafab4 | Avi Kivity | cpu_physical_sync_dirty_bitmap(int128_get64(fr->addr.start), |
336 | 08dafab4 | Avi Kivity | int128_get64(end)); |
337 | 39b796f2 | Avi Kivity | } |
338 | 08dafab4 | Avi Kivity | cpu_register_physical_memory(int128_get64(fr->addr.start), |
339 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size), |
340 | cc31e6e7 | Avi Kivity | IO_MEM_UNASSIGNED); |
341 | cc31e6e7 | Avi Kivity | } |
342 | cc31e6e7 | Avi Kivity | |
343 | cc31e6e7 | Avi Kivity | static void as_memory_log_start(AddressSpace *as, FlatRange *fr) |
344 | cc31e6e7 | Avi Kivity | { |
345 | 08dafab4 | Avi Kivity | cpu_physical_log_start(int128_get64(fr->addr.start), |
346 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size)); |
347 | cc31e6e7 | Avi Kivity | } |
348 | cc31e6e7 | Avi Kivity | |
349 | cc31e6e7 | Avi Kivity | static void as_memory_log_stop(AddressSpace *as, FlatRange *fr) |
350 | cc31e6e7 | Avi Kivity | { |
351 | 08dafab4 | Avi Kivity | cpu_physical_log_stop(int128_get64(fr->addr.start), |
352 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size)); |
353 | cc31e6e7 | Avi Kivity | } |
354 | cc31e6e7 | Avi Kivity | |
355 | 3e9d69e7 | Avi Kivity | static void as_memory_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd) |
356 | 3e9d69e7 | Avi Kivity | { |
357 | 3e9d69e7 | Avi Kivity | int r;
|
358 | 3e9d69e7 | Avi Kivity | |
359 | 08dafab4 | Avi Kivity | assert(fd->match_data && int128_get64(fd->addr.size) == 4);
|
360 | 3e9d69e7 | Avi Kivity | |
361 | 08dafab4 | Avi Kivity | r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start), |
362 | 08dafab4 | Avi Kivity | fd->data, true);
|
363 | 3e9d69e7 | Avi Kivity | if (r < 0) { |
364 | 3e9d69e7 | Avi Kivity | abort(); |
365 | 3e9d69e7 | Avi Kivity | } |
366 | 3e9d69e7 | Avi Kivity | } |
367 | 3e9d69e7 | Avi Kivity | |
368 | 3e9d69e7 | Avi Kivity | static void as_memory_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd) |
369 | 3e9d69e7 | Avi Kivity | { |
370 | 3e9d69e7 | Avi Kivity | int r;
|
371 | 3e9d69e7 | Avi Kivity | |
372 | 08dafab4 | Avi Kivity | r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start), |
373 | 08dafab4 | Avi Kivity | fd->data, false);
|
374 | 3e9d69e7 | Avi Kivity | if (r < 0) { |
375 | 3e9d69e7 | Avi Kivity | abort(); |
376 | 3e9d69e7 | Avi Kivity | } |
377 | 3e9d69e7 | Avi Kivity | } |
378 | 3e9d69e7 | Avi Kivity | |
379 | cc31e6e7 | Avi Kivity | static const AddressSpaceOps address_space_ops_memory = { |
380 | cc31e6e7 | Avi Kivity | .range_add = as_memory_range_add, |
381 | cc31e6e7 | Avi Kivity | .range_del = as_memory_range_del, |
382 | cc31e6e7 | Avi Kivity | .log_start = as_memory_log_start, |
383 | cc31e6e7 | Avi Kivity | .log_stop = as_memory_log_stop, |
384 | 3e9d69e7 | Avi Kivity | .ioeventfd_add = as_memory_ioeventfd_add, |
385 | 3e9d69e7 | Avi Kivity | .ioeventfd_del = as_memory_ioeventfd_del, |
386 | cc31e6e7 | Avi Kivity | }; |
387 | cc31e6e7 | Avi Kivity | |
388 | cc31e6e7 | Avi Kivity | static AddressSpace address_space_memory = {
|
389 | cc31e6e7 | Avi Kivity | .ops = &address_space_ops_memory, |
390 | cc31e6e7 | Avi Kivity | }; |
391 | cc31e6e7 | Avi Kivity | |
392 | 627a0e90 | Avi Kivity | static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset, |
393 | 627a0e90 | Avi Kivity | unsigned width, bool write) |
394 | 627a0e90 | Avi Kivity | { |
395 | 627a0e90 | Avi Kivity | const MemoryRegionPortio *mrp;
|
396 | 627a0e90 | Avi Kivity | |
397 | 627a0e90 | Avi Kivity | for (mrp = mr->ops->old_portio; mrp->size; ++mrp) {
|
398 | 627a0e90 | Avi Kivity | if (offset >= mrp->offset && offset < mrp->offset + mrp->len
|
399 | 627a0e90 | Avi Kivity | && width == mrp->size |
400 | 627a0e90 | Avi Kivity | && (write ? (bool)mrp->write : (bool)mrp->read)) { |
401 | 627a0e90 | Avi Kivity | return mrp;
|
402 | 627a0e90 | Avi Kivity | } |
403 | 627a0e90 | Avi Kivity | } |
404 | 627a0e90 | Avi Kivity | return NULL; |
405 | 627a0e90 | Avi Kivity | } |
406 | 627a0e90 | Avi Kivity | |
407 | 658b2224 | Avi Kivity | static void memory_region_iorange_read(IORange *iorange, |
408 | 658b2224 | Avi Kivity | uint64_t offset, |
409 | 658b2224 | Avi Kivity | unsigned width,
|
410 | 658b2224 | Avi Kivity | uint64_t *data) |
411 | 658b2224 | Avi Kivity | { |
412 | 658b2224 | Avi Kivity | MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
413 | 658b2224 | Avi Kivity | |
414 | 627a0e90 | Avi Kivity | if (mr->ops->old_portio) {
|
415 | 627a0e90 | Avi Kivity | const MemoryRegionPortio *mrp = find_portio(mr, offset, width, false); |
416 | 627a0e90 | Avi Kivity | |
417 | 627a0e90 | Avi Kivity | *data = ((uint64_t)1 << (width * 8)) - 1; |
418 | 627a0e90 | Avi Kivity | if (mrp) {
|
419 | 6bf9fd43 | Avi Kivity | *data = mrp->read(mr->opaque, offset + mr->offset); |
420 | 03808f58 | Jan Kiszka | } else if (width == 2) { |
421 | 03808f58 | Jan Kiszka | mrp = find_portio(mr, offset, 1, false); |
422 | 03808f58 | Jan Kiszka | assert(mrp); |
423 | 03808f58 | Jan Kiszka | *data = mrp->read(mr->opaque, offset + mr->offset) | |
424 | 03808f58 | Jan Kiszka | (mrp->read(mr->opaque, offset + mr->offset + 1) << 8); |
425 | 627a0e90 | Avi Kivity | } |
426 | 627a0e90 | Avi Kivity | return;
|
427 | 627a0e90 | Avi Kivity | } |
428 | 3a130f4e | Avi Kivity | *data = 0;
|
429 | 6bf9fd43 | Avi Kivity | access_with_adjusted_size(offset + mr->offset, data, width, |
430 | 3a130f4e | Avi Kivity | mr->ops->impl.min_access_size, |
431 | 3a130f4e | Avi Kivity | mr->ops->impl.max_access_size, |
432 | 3a130f4e | Avi Kivity | memory_region_read_accessor, mr); |
433 | 658b2224 | Avi Kivity | } |
434 | 658b2224 | Avi Kivity | |
435 | 658b2224 | Avi Kivity | static void memory_region_iorange_write(IORange *iorange, |
436 | 658b2224 | Avi Kivity | uint64_t offset, |
437 | 658b2224 | Avi Kivity | unsigned width,
|
438 | 658b2224 | Avi Kivity | uint64_t data) |
439 | 658b2224 | Avi Kivity | { |
440 | 658b2224 | Avi Kivity | MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
441 | 658b2224 | Avi Kivity | |
442 | 627a0e90 | Avi Kivity | if (mr->ops->old_portio) {
|
443 | 627a0e90 | Avi Kivity | const MemoryRegionPortio *mrp = find_portio(mr, offset, width, true); |
444 | 627a0e90 | Avi Kivity | |
445 | 627a0e90 | Avi Kivity | if (mrp) {
|
446 | 6bf9fd43 | Avi Kivity | mrp->write(mr->opaque, offset + mr->offset, data); |
447 | 03808f58 | Jan Kiszka | } else if (width == 2) { |
448 | 03808f58 | Jan Kiszka | mrp = find_portio(mr, offset, 1, false); |
449 | 03808f58 | Jan Kiszka | assert(mrp); |
450 | 03808f58 | Jan Kiszka | mrp->write(mr->opaque, offset + mr->offset, data & 0xff);
|
451 | 03808f58 | Jan Kiszka | mrp->write(mr->opaque, offset + mr->offset + 1, data >> 8); |
452 | 627a0e90 | Avi Kivity | } |
453 | 627a0e90 | Avi Kivity | return;
|
454 | 627a0e90 | Avi Kivity | } |
455 | 6bf9fd43 | Avi Kivity | access_with_adjusted_size(offset + mr->offset, &data, width, |
456 | 3a130f4e | Avi Kivity | mr->ops->impl.min_access_size, |
457 | 3a130f4e | Avi Kivity | mr->ops->impl.max_access_size, |
458 | 3a130f4e | Avi Kivity | memory_region_write_accessor, mr); |
459 | 658b2224 | Avi Kivity | } |
460 | 658b2224 | Avi Kivity | |
461 | 658b2224 | Avi Kivity | static const IORangeOps memory_region_iorange_ops = { |
462 | 658b2224 | Avi Kivity | .read = memory_region_iorange_read, |
463 | 658b2224 | Avi Kivity | .write = memory_region_iorange_write, |
464 | 658b2224 | Avi Kivity | }; |
465 | 658b2224 | Avi Kivity | |
466 | 658b2224 | Avi Kivity | static void as_io_range_add(AddressSpace *as, FlatRange *fr) |
467 | 658b2224 | Avi Kivity | { |
468 | 658b2224 | Avi Kivity | iorange_init(&fr->mr->iorange, &memory_region_iorange_ops, |
469 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.start), int128_get64(fr->addr.size)); |
470 | 658b2224 | Avi Kivity | ioport_register(&fr->mr->iorange); |
471 | 658b2224 | Avi Kivity | } |
472 | 658b2224 | Avi Kivity | |
473 | 658b2224 | Avi Kivity | static void as_io_range_del(AddressSpace *as, FlatRange *fr) |
474 | 658b2224 | Avi Kivity | { |
475 | 08dafab4 | Avi Kivity | isa_unassign_ioport(int128_get64(fr->addr.start), |
476 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size)); |
477 | 658b2224 | Avi Kivity | } |
478 | 658b2224 | Avi Kivity | |
479 | 3e9d69e7 | Avi Kivity | static void as_io_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd) |
480 | 3e9d69e7 | Avi Kivity | { |
481 | 3e9d69e7 | Avi Kivity | int r;
|
482 | 3e9d69e7 | Avi Kivity | |
483 | 08dafab4 | Avi Kivity | assert(fd->match_data && int128_get64(fd->addr.size) == 2);
|
484 | 3e9d69e7 | Avi Kivity | |
485 | 08dafab4 | Avi Kivity | r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start), |
486 | 08dafab4 | Avi Kivity | fd->data, true);
|
487 | 3e9d69e7 | Avi Kivity | if (r < 0) { |
488 | 3e9d69e7 | Avi Kivity | abort(); |
489 | 3e9d69e7 | Avi Kivity | } |
490 | 3e9d69e7 | Avi Kivity | } |
491 | 3e9d69e7 | Avi Kivity | |
492 | 3e9d69e7 | Avi Kivity | static void as_io_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd) |
493 | 3e9d69e7 | Avi Kivity | { |
494 | 3e9d69e7 | Avi Kivity | int r;
|
495 | 3e9d69e7 | Avi Kivity | |
496 | 08dafab4 | Avi Kivity | r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start), |
497 | 08dafab4 | Avi Kivity | fd->data, false);
|
498 | 3e9d69e7 | Avi Kivity | if (r < 0) { |
499 | 3e9d69e7 | Avi Kivity | abort(); |
500 | 3e9d69e7 | Avi Kivity | } |
501 | 3e9d69e7 | Avi Kivity | } |
502 | 3e9d69e7 | Avi Kivity | |
503 | 658b2224 | Avi Kivity | static const AddressSpaceOps address_space_ops_io = { |
504 | 658b2224 | Avi Kivity | .range_add = as_io_range_add, |
505 | 658b2224 | Avi Kivity | .range_del = as_io_range_del, |
506 | 3e9d69e7 | Avi Kivity | .ioeventfd_add = as_io_ioeventfd_add, |
507 | 3e9d69e7 | Avi Kivity | .ioeventfd_del = as_io_ioeventfd_del, |
508 | 658b2224 | Avi Kivity | }; |
509 | 658b2224 | Avi Kivity | |
510 | 658b2224 | Avi Kivity | static AddressSpace address_space_io = {
|
511 | 658b2224 | Avi Kivity | .ops = &address_space_ops_io, |
512 | 658b2224 | Avi Kivity | }; |
513 | 658b2224 | Avi Kivity | |
514 | 093bc2cd | Avi Kivity | /* Render a memory region into the global view. Ranges in @view obscure
|
515 | 093bc2cd | Avi Kivity | * ranges in @mr.
|
516 | 093bc2cd | Avi Kivity | */
|
517 | 093bc2cd | Avi Kivity | static void render_memory_region(FlatView *view, |
518 | 093bc2cd | Avi Kivity | MemoryRegion *mr, |
519 | 08dafab4 | Avi Kivity | Int128 base, |
520 | fb1cd6f9 | Avi Kivity | AddrRange clip, |
521 | fb1cd6f9 | Avi Kivity | bool readonly)
|
522 | 093bc2cd | Avi Kivity | { |
523 | 093bc2cd | Avi Kivity | MemoryRegion *subregion; |
524 | 093bc2cd | Avi Kivity | unsigned i;
|
525 | 093bc2cd | Avi Kivity | target_phys_addr_t offset_in_region; |
526 | 08dafab4 | Avi Kivity | Int128 remain; |
527 | 08dafab4 | Avi Kivity | Int128 now; |
528 | 093bc2cd | Avi Kivity | FlatRange fr; |
529 | 093bc2cd | Avi Kivity | AddrRange tmp; |
530 | 093bc2cd | Avi Kivity | |
531 | 08dafab4 | Avi Kivity | int128_addto(&base, int128_make64(mr->addr)); |
532 | fb1cd6f9 | Avi Kivity | readonly |= mr->readonly; |
533 | 093bc2cd | Avi Kivity | |
534 | 093bc2cd | Avi Kivity | tmp = addrrange_make(base, mr->size); |
535 | 093bc2cd | Avi Kivity | |
536 | 093bc2cd | Avi Kivity | if (!addrrange_intersects(tmp, clip)) {
|
537 | 093bc2cd | Avi Kivity | return;
|
538 | 093bc2cd | Avi Kivity | } |
539 | 093bc2cd | Avi Kivity | |
540 | 093bc2cd | Avi Kivity | clip = addrrange_intersection(tmp, clip); |
541 | 093bc2cd | Avi Kivity | |
542 | 093bc2cd | Avi Kivity | if (mr->alias) {
|
543 | 08dafab4 | Avi Kivity | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
544 | 08dafab4 | Avi Kivity | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
545 | fb1cd6f9 | Avi Kivity | render_memory_region(view, mr->alias, base, clip, readonly); |
546 | 093bc2cd | Avi Kivity | return;
|
547 | 093bc2cd | Avi Kivity | } |
548 | 093bc2cd | Avi Kivity | |
549 | 093bc2cd | Avi Kivity | /* Render subregions in priority order. */
|
550 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
551 | fb1cd6f9 | Avi Kivity | render_memory_region(view, subregion, base, clip, readonly); |
552 | 093bc2cd | Avi Kivity | } |
553 | 093bc2cd | Avi Kivity | |
554 | 14a3c10a | Avi Kivity | if (!mr->terminates) {
|
555 | 093bc2cd | Avi Kivity | return;
|
556 | 093bc2cd | Avi Kivity | } |
557 | 093bc2cd | Avi Kivity | |
558 | 08dafab4 | Avi Kivity | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
559 | 093bc2cd | Avi Kivity | base = clip.start; |
560 | 093bc2cd | Avi Kivity | remain = clip.size; |
561 | 093bc2cd | Avi Kivity | |
562 | 093bc2cd | Avi Kivity | /* Render the region itself into any gaps left by the current view. */
|
563 | 08dafab4 | Avi Kivity | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
564 | 08dafab4 | Avi Kivity | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) {
|
565 | 093bc2cd | Avi Kivity | continue;
|
566 | 093bc2cd | Avi Kivity | } |
567 | 08dafab4 | Avi Kivity | if (int128_lt(base, view->ranges[i].addr.start)) {
|
568 | 08dafab4 | Avi Kivity | now = int128_min(remain, |
569 | 08dafab4 | Avi Kivity | int128_sub(view->ranges[i].addr.start, base)); |
570 | 093bc2cd | Avi Kivity | fr.mr = mr; |
571 | 093bc2cd | Avi Kivity | fr.offset_in_region = offset_in_region; |
572 | 093bc2cd | Avi Kivity | fr.addr = addrrange_make(base, now); |
573 | 5a583347 | Avi Kivity | fr.dirty_log_mask = mr->dirty_log_mask; |
574 | d0a9b5bc | Avi Kivity | fr.readable = mr->readable; |
575 | fb1cd6f9 | Avi Kivity | fr.readonly = readonly; |
576 | 093bc2cd | Avi Kivity | flatview_insert(view, i, &fr); |
577 | 093bc2cd | Avi Kivity | ++i; |
578 | 08dafab4 | Avi Kivity | int128_addto(&base, now); |
579 | 08dafab4 | Avi Kivity | offset_in_region += int128_get64(now); |
580 | 08dafab4 | Avi Kivity | int128_subfrom(&remain, now); |
581 | 093bc2cd | Avi Kivity | } |
582 | 08dafab4 | Avi Kivity | if (int128_eq(base, view->ranges[i].addr.start)) {
|
583 | 08dafab4 | Avi Kivity | now = int128_min(remain, view->ranges[i].addr.size); |
584 | 08dafab4 | Avi Kivity | int128_addto(&base, now); |
585 | 08dafab4 | Avi Kivity | offset_in_region += int128_get64(now); |
586 | 08dafab4 | Avi Kivity | int128_subfrom(&remain, now); |
587 | 093bc2cd | Avi Kivity | } |
588 | 093bc2cd | Avi Kivity | } |
589 | 08dafab4 | Avi Kivity | if (int128_nz(remain)) {
|
590 | 093bc2cd | Avi Kivity | fr.mr = mr; |
591 | 093bc2cd | Avi Kivity | fr.offset_in_region = offset_in_region; |
592 | 093bc2cd | Avi Kivity | fr.addr = addrrange_make(base, remain); |
593 | 5a583347 | Avi Kivity | fr.dirty_log_mask = mr->dirty_log_mask; |
594 | d0a9b5bc | Avi Kivity | fr.readable = mr->readable; |
595 | fb1cd6f9 | Avi Kivity | fr.readonly = readonly; |
596 | 093bc2cd | Avi Kivity | flatview_insert(view, i, &fr); |
597 | 093bc2cd | Avi Kivity | } |
598 | 093bc2cd | Avi Kivity | } |
599 | 093bc2cd | Avi Kivity | |
600 | 093bc2cd | Avi Kivity | /* Render a memory topology into a list of disjoint absolute ranges. */
|
601 | 093bc2cd | Avi Kivity | static FlatView generate_memory_topology(MemoryRegion *mr)
|
602 | 093bc2cd | Avi Kivity | { |
603 | 093bc2cd | Avi Kivity | FlatView view; |
604 | 093bc2cd | Avi Kivity | |
605 | 093bc2cd | Avi Kivity | flatview_init(&view); |
606 | 093bc2cd | Avi Kivity | |
607 | 08dafab4 | Avi Kivity | render_memory_region(&view, mr, int128_zero(), |
608 | 08dafab4 | Avi Kivity | addrrange_make(int128_zero(), int128_2_64()), false);
|
609 | 3d8e6bf9 | Avi Kivity | flatview_simplify(&view); |
610 | 093bc2cd | Avi Kivity | |
611 | 093bc2cd | Avi Kivity | return view;
|
612 | 093bc2cd | Avi Kivity | } |
613 | 093bc2cd | Avi Kivity | |
614 | 3e9d69e7 | Avi Kivity | static void address_space_add_del_ioeventfds(AddressSpace *as, |
615 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *fds_new, |
616 | 3e9d69e7 | Avi Kivity | unsigned fds_new_nb,
|
617 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *fds_old, |
618 | 3e9d69e7 | Avi Kivity | unsigned fds_old_nb)
|
619 | 3e9d69e7 | Avi Kivity | { |
620 | 3e9d69e7 | Avi Kivity | unsigned iold, inew;
|
621 | 3e9d69e7 | Avi Kivity | |
622 | 3e9d69e7 | Avi Kivity | /* Generate a symmetric difference of the old and new fd sets, adding
|
623 | 3e9d69e7 | Avi Kivity | * and deleting as necessary.
|
624 | 3e9d69e7 | Avi Kivity | */
|
625 | 3e9d69e7 | Avi Kivity | |
626 | 3e9d69e7 | Avi Kivity | iold = inew = 0;
|
627 | 3e9d69e7 | Avi Kivity | while (iold < fds_old_nb || inew < fds_new_nb) {
|
628 | 3e9d69e7 | Avi Kivity | if (iold < fds_old_nb
|
629 | 3e9d69e7 | Avi Kivity | && (inew == fds_new_nb |
630 | 3e9d69e7 | Avi Kivity | || memory_region_ioeventfd_before(fds_old[iold], |
631 | 3e9d69e7 | Avi Kivity | fds_new[inew]))) { |
632 | 3e9d69e7 | Avi Kivity | as->ops->ioeventfd_del(as, &fds_old[iold]); |
633 | 3e9d69e7 | Avi Kivity | ++iold; |
634 | 3e9d69e7 | Avi Kivity | } else if (inew < fds_new_nb |
635 | 3e9d69e7 | Avi Kivity | && (iold == fds_old_nb |
636 | 3e9d69e7 | Avi Kivity | || memory_region_ioeventfd_before(fds_new[inew], |
637 | 3e9d69e7 | Avi Kivity | fds_old[iold]))) { |
638 | 3e9d69e7 | Avi Kivity | as->ops->ioeventfd_add(as, &fds_new[inew]); |
639 | 3e9d69e7 | Avi Kivity | ++inew; |
640 | 3e9d69e7 | Avi Kivity | } else {
|
641 | 3e9d69e7 | Avi Kivity | ++iold; |
642 | 3e9d69e7 | Avi Kivity | ++inew; |
643 | 3e9d69e7 | Avi Kivity | } |
644 | 3e9d69e7 | Avi Kivity | } |
645 | 3e9d69e7 | Avi Kivity | } |
646 | 3e9d69e7 | Avi Kivity | |
647 | 3e9d69e7 | Avi Kivity | static void address_space_update_ioeventfds(AddressSpace *as) |
648 | 3e9d69e7 | Avi Kivity | { |
649 | 3e9d69e7 | Avi Kivity | FlatRange *fr; |
650 | 3e9d69e7 | Avi Kivity | unsigned ioeventfd_nb = 0; |
651 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *ioeventfds = NULL;
|
652 | 3e9d69e7 | Avi Kivity | AddrRange tmp; |
653 | 3e9d69e7 | Avi Kivity | unsigned i;
|
654 | 3e9d69e7 | Avi Kivity | |
655 | 3e9d69e7 | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, &as->current_map) { |
656 | 3e9d69e7 | Avi Kivity | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
657 | 3e9d69e7 | Avi Kivity | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
658 | 08dafab4 | Avi Kivity | int128_sub(fr->addr.start, |
659 | 08dafab4 | Avi Kivity | int128_make64(fr->offset_in_region))); |
660 | 3e9d69e7 | Avi Kivity | if (addrrange_intersects(fr->addr, tmp)) {
|
661 | 3e9d69e7 | Avi Kivity | ++ioeventfd_nb; |
662 | 7267c094 | Anthony Liguori | ioeventfds = g_realloc(ioeventfds, |
663 | 3e9d69e7 | Avi Kivity | ioeventfd_nb * sizeof(*ioeventfds));
|
664 | 3e9d69e7 | Avi Kivity | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i];
|
665 | 3e9d69e7 | Avi Kivity | ioeventfds[ioeventfd_nb-1].addr = tmp;
|
666 | 3e9d69e7 | Avi Kivity | } |
667 | 3e9d69e7 | Avi Kivity | } |
668 | 3e9d69e7 | Avi Kivity | } |
669 | 3e9d69e7 | Avi Kivity | |
670 | 3e9d69e7 | Avi Kivity | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
671 | 3e9d69e7 | Avi Kivity | as->ioeventfds, as->ioeventfd_nb); |
672 | 3e9d69e7 | Avi Kivity | |
673 | 7267c094 | Anthony Liguori | g_free(as->ioeventfds); |
674 | 3e9d69e7 | Avi Kivity | as->ioeventfds = ioeventfds; |
675 | 3e9d69e7 | Avi Kivity | as->ioeventfd_nb = ioeventfd_nb; |
676 | 3e9d69e7 | Avi Kivity | } |
677 | 3e9d69e7 | Avi Kivity | |
678 | b8af1afb | Avi Kivity | static void address_space_update_topology_pass(AddressSpace *as, |
679 | b8af1afb | Avi Kivity | FlatView old_view, |
680 | b8af1afb | Avi Kivity | FlatView new_view, |
681 | b8af1afb | Avi Kivity | bool adding)
|
682 | 093bc2cd | Avi Kivity | { |
683 | 093bc2cd | Avi Kivity | unsigned iold, inew;
|
684 | 093bc2cd | Avi Kivity | FlatRange *frold, *frnew; |
685 | 093bc2cd | Avi Kivity | |
686 | 093bc2cd | Avi Kivity | /* Generate a symmetric difference of the old and new memory maps.
|
687 | 093bc2cd | Avi Kivity | * Kill ranges in the old map, and instantiate ranges in the new map.
|
688 | 093bc2cd | Avi Kivity | */
|
689 | 093bc2cd | Avi Kivity | iold = inew = 0;
|
690 | 093bc2cd | Avi Kivity | while (iold < old_view.nr || inew < new_view.nr) {
|
691 | 093bc2cd | Avi Kivity | if (iold < old_view.nr) {
|
692 | 093bc2cd | Avi Kivity | frold = &old_view.ranges[iold]; |
693 | 093bc2cd | Avi Kivity | } else {
|
694 | 093bc2cd | Avi Kivity | frold = NULL;
|
695 | 093bc2cd | Avi Kivity | } |
696 | 093bc2cd | Avi Kivity | if (inew < new_view.nr) {
|
697 | 093bc2cd | Avi Kivity | frnew = &new_view.ranges[inew]; |
698 | 093bc2cd | Avi Kivity | } else {
|
699 | 093bc2cd | Avi Kivity | frnew = NULL;
|
700 | 093bc2cd | Avi Kivity | } |
701 | 093bc2cd | Avi Kivity | |
702 | 093bc2cd | Avi Kivity | if (frold
|
703 | 093bc2cd | Avi Kivity | && (!frnew |
704 | 08dafab4 | Avi Kivity | || int128_lt(frold->addr.start, frnew->addr.start) |
705 | 08dafab4 | Avi Kivity | || (int128_eq(frold->addr.start, frnew->addr.start) |
706 | 093bc2cd | Avi Kivity | && !flatrange_equal(frold, frnew)))) { |
707 | 093bc2cd | Avi Kivity | /* In old, but (not in new, or in new but attributes changed). */
|
708 | 093bc2cd | Avi Kivity | |
709 | b8af1afb | Avi Kivity | if (!adding) {
|
710 | b8af1afb | Avi Kivity | as->ops->range_del(as, frold); |
711 | b8af1afb | Avi Kivity | } |
712 | b8af1afb | Avi Kivity | |
713 | 093bc2cd | Avi Kivity | ++iold; |
714 | 093bc2cd | Avi Kivity | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
715 | 093bc2cd | Avi Kivity | /* In both (logging may have changed) */
|
716 | 093bc2cd | Avi Kivity | |
717 | b8af1afb | Avi Kivity | if (adding) {
|
718 | b8af1afb | Avi Kivity | if (frold->dirty_log_mask && !frnew->dirty_log_mask) {
|
719 | b8af1afb | Avi Kivity | as->ops->log_stop(as, frnew); |
720 | b8af1afb | Avi Kivity | } else if (frnew->dirty_log_mask && !frold->dirty_log_mask) { |
721 | b8af1afb | Avi Kivity | as->ops->log_start(as, frnew); |
722 | b8af1afb | Avi Kivity | } |
723 | 5a583347 | Avi Kivity | } |
724 | 5a583347 | Avi Kivity | |
725 | 093bc2cd | Avi Kivity | ++iold; |
726 | 093bc2cd | Avi Kivity | ++inew; |
727 | 093bc2cd | Avi Kivity | } else {
|
728 | 093bc2cd | Avi Kivity | /* In new */
|
729 | 093bc2cd | Avi Kivity | |
730 | b8af1afb | Avi Kivity | if (adding) {
|
731 | b8af1afb | Avi Kivity | as->ops->range_add(as, frnew); |
732 | b8af1afb | Avi Kivity | } |
733 | b8af1afb | Avi Kivity | |
734 | 093bc2cd | Avi Kivity | ++inew; |
735 | 093bc2cd | Avi Kivity | } |
736 | 093bc2cd | Avi Kivity | } |
737 | b8af1afb | Avi Kivity | } |
738 | b8af1afb | Avi Kivity | |
739 | b8af1afb | Avi Kivity | |
740 | b8af1afb | Avi Kivity | static void address_space_update_topology(AddressSpace *as) |
741 | b8af1afb | Avi Kivity | { |
742 | b8af1afb | Avi Kivity | FlatView old_view = as->current_map; |
743 | b8af1afb | Avi Kivity | FlatView new_view = generate_memory_topology(as->root); |
744 | b8af1afb | Avi Kivity | |
745 | b8af1afb | Avi Kivity | address_space_update_topology_pass(as, old_view, new_view, false);
|
746 | b8af1afb | Avi Kivity | address_space_update_topology_pass(as, old_view, new_view, true);
|
747 | b8af1afb | Avi Kivity | |
748 | cc31e6e7 | Avi Kivity | as->current_map = new_view; |
749 | 093bc2cd | Avi Kivity | flatview_destroy(&old_view); |
750 | 3e9d69e7 | Avi Kivity | address_space_update_ioeventfds(as); |
751 | 093bc2cd | Avi Kivity | } |
752 | 093bc2cd | Avi Kivity | |
753 | cc31e6e7 | Avi Kivity | static void memory_region_update_topology(void) |
754 | cc31e6e7 | Avi Kivity | { |
755 | 4ef4db86 | Avi Kivity | if (memory_region_transaction_depth) {
|
756 | 4ef4db86 | Avi Kivity | return;
|
757 | 4ef4db86 | Avi Kivity | } |
758 | 4ef4db86 | Avi Kivity | |
759 | 658b2224 | Avi Kivity | if (address_space_memory.root) {
|
760 | 658b2224 | Avi Kivity | address_space_update_topology(&address_space_memory); |
761 | 658b2224 | Avi Kivity | } |
762 | 658b2224 | Avi Kivity | if (address_space_io.root) {
|
763 | 658b2224 | Avi Kivity | address_space_update_topology(&address_space_io); |
764 | 658b2224 | Avi Kivity | } |
765 | cc31e6e7 | Avi Kivity | } |
766 | cc31e6e7 | Avi Kivity | |
767 | 4ef4db86 | Avi Kivity | void memory_region_transaction_begin(void) |
768 | 4ef4db86 | Avi Kivity | { |
769 | 4ef4db86 | Avi Kivity | ++memory_region_transaction_depth; |
770 | 4ef4db86 | Avi Kivity | } |
771 | 4ef4db86 | Avi Kivity | |
772 | 4ef4db86 | Avi Kivity | void memory_region_transaction_commit(void) |
773 | 4ef4db86 | Avi Kivity | { |
774 | 4ef4db86 | Avi Kivity | assert(memory_region_transaction_depth); |
775 | 4ef4db86 | Avi Kivity | --memory_region_transaction_depth; |
776 | 4ef4db86 | Avi Kivity | memory_region_update_topology(); |
777 | 4ef4db86 | Avi Kivity | } |
778 | 4ef4db86 | Avi Kivity | |
779 | 545e92e0 | Avi Kivity | static void memory_region_destructor_none(MemoryRegion *mr) |
780 | 545e92e0 | Avi Kivity | { |
781 | 545e92e0 | Avi Kivity | } |
782 | 545e92e0 | Avi Kivity | |
783 | 545e92e0 | Avi Kivity | static void memory_region_destructor_ram(MemoryRegion *mr) |
784 | 545e92e0 | Avi Kivity | { |
785 | 545e92e0 | Avi Kivity | qemu_ram_free(mr->ram_addr); |
786 | 545e92e0 | Avi Kivity | } |
787 | 545e92e0 | Avi Kivity | |
788 | 545e92e0 | Avi Kivity | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
789 | 545e92e0 | Avi Kivity | { |
790 | 545e92e0 | Avi Kivity | qemu_ram_free_from_ptr(mr->ram_addr); |
791 | 545e92e0 | Avi Kivity | } |
792 | 545e92e0 | Avi Kivity | |
793 | 545e92e0 | Avi Kivity | static void memory_region_destructor_iomem(MemoryRegion *mr) |
794 | 545e92e0 | Avi Kivity | { |
795 | 545e92e0 | Avi Kivity | cpu_unregister_io_memory(mr->ram_addr); |
796 | 545e92e0 | Avi Kivity | } |
797 | 545e92e0 | Avi Kivity | |
798 | d0a9b5bc | Avi Kivity | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
799 | d0a9b5bc | Avi Kivity | { |
800 | d0a9b5bc | Avi Kivity | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
801 | d0a9b5bc | Avi Kivity | cpu_unregister_io_memory(mr->ram_addr & ~(TARGET_PAGE_MASK | IO_MEM_ROMD)); |
802 | d0a9b5bc | Avi Kivity | } |
803 | d0a9b5bc | Avi Kivity | |
804 | 093bc2cd | Avi Kivity | void memory_region_init(MemoryRegion *mr,
|
805 | 093bc2cd | Avi Kivity | const char *name, |
806 | 093bc2cd | Avi Kivity | uint64_t size) |
807 | 093bc2cd | Avi Kivity | { |
808 | 093bc2cd | Avi Kivity | mr->ops = NULL;
|
809 | 093bc2cd | Avi Kivity | mr->parent = NULL;
|
810 | 08dafab4 | Avi Kivity | mr->size = int128_make64(size); |
811 | 08dafab4 | Avi Kivity | if (size == UINT64_MAX) {
|
812 | 08dafab4 | Avi Kivity | mr->size = int128_2_64(); |
813 | 08dafab4 | Avi Kivity | } |
814 | 093bc2cd | Avi Kivity | mr->addr = 0;
|
815 | 093bc2cd | Avi Kivity | mr->offset = 0;
|
816 | 14a3c10a | Avi Kivity | mr->terminates = false;
|
817 | d0a9b5bc | Avi Kivity | mr->readable = true;
|
818 | fb1cd6f9 | Avi Kivity | mr->readonly = false;
|
819 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_none; |
820 | 093bc2cd | Avi Kivity | mr->priority = 0;
|
821 | 093bc2cd | Avi Kivity | mr->may_overlap = false;
|
822 | 093bc2cd | Avi Kivity | mr->alias = NULL;
|
823 | 093bc2cd | Avi Kivity | QTAILQ_INIT(&mr->subregions); |
824 | 093bc2cd | Avi Kivity | memset(&mr->subregions_link, 0, sizeof mr->subregions_link); |
825 | 093bc2cd | Avi Kivity | QTAILQ_INIT(&mr->coalesced); |
826 | 7267c094 | Anthony Liguori | mr->name = g_strdup(name); |
827 | 5a583347 | Avi Kivity | mr->dirty_log_mask = 0;
|
828 | 3e9d69e7 | Avi Kivity | mr->ioeventfd_nb = 0;
|
829 | 3e9d69e7 | Avi Kivity | mr->ioeventfds = NULL;
|
830 | 093bc2cd | Avi Kivity | } |
831 | 093bc2cd | Avi Kivity | |
832 | 093bc2cd | Avi Kivity | static bool memory_region_access_valid(MemoryRegion *mr, |
833 | 093bc2cd | Avi Kivity | target_phys_addr_t addr, |
834 | 897fa7cf | Avi Kivity | unsigned size,
|
835 | 897fa7cf | Avi Kivity | bool is_write)
|
836 | 093bc2cd | Avi Kivity | { |
837 | 897fa7cf | Avi Kivity | if (mr->ops->valid.accepts
|
838 | 897fa7cf | Avi Kivity | && !mr->ops->valid.accepts(mr->opaque, addr, size, is_write)) { |
839 | 897fa7cf | Avi Kivity | return false; |
840 | 897fa7cf | Avi Kivity | } |
841 | 897fa7cf | Avi Kivity | |
842 | 093bc2cd | Avi Kivity | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
843 | 093bc2cd | Avi Kivity | return false; |
844 | 093bc2cd | Avi Kivity | } |
845 | 093bc2cd | Avi Kivity | |
846 | 093bc2cd | Avi Kivity | /* Treat zero as compatibility all valid */
|
847 | 093bc2cd | Avi Kivity | if (!mr->ops->valid.max_access_size) {
|
848 | 093bc2cd | Avi Kivity | return true; |
849 | 093bc2cd | Avi Kivity | } |
850 | 093bc2cd | Avi Kivity | |
851 | 093bc2cd | Avi Kivity | if (size > mr->ops->valid.max_access_size
|
852 | 093bc2cd | Avi Kivity | || size < mr->ops->valid.min_access_size) { |
853 | 093bc2cd | Avi Kivity | return false; |
854 | 093bc2cd | Avi Kivity | } |
855 | 093bc2cd | Avi Kivity | return true; |
856 | 093bc2cd | Avi Kivity | } |
857 | 093bc2cd | Avi Kivity | |
858 | 093bc2cd | Avi Kivity | static uint32_t memory_region_read_thunk_n(void *_mr, |
859 | 093bc2cd | Avi Kivity | target_phys_addr_t addr, |
860 | 093bc2cd | Avi Kivity | unsigned size)
|
861 | 093bc2cd | Avi Kivity | { |
862 | 093bc2cd | Avi Kivity | MemoryRegion *mr = _mr; |
863 | 164a4dcd | Avi Kivity | uint64_t data = 0;
|
864 | 093bc2cd | Avi Kivity | |
865 | 897fa7cf | Avi Kivity | if (!memory_region_access_valid(mr, addr, size, false)) { |
866 | 093bc2cd | Avi Kivity | return -1U; /* FIXME: better signalling */ |
867 | 093bc2cd | Avi Kivity | } |
868 | 093bc2cd | Avi Kivity | |
869 | 74901c3b | Avi Kivity | if (!mr->ops->read) {
|
870 | 74901c3b | Avi Kivity | return mr->ops->old_mmio.read[bitops_ffsl(size)](mr->opaque, addr);
|
871 | 74901c3b | Avi Kivity | } |
872 | 74901c3b | Avi Kivity | |
873 | 093bc2cd | Avi Kivity | /* FIXME: support unaligned access */
|
874 | 164a4dcd | Avi Kivity | access_with_adjusted_size(addr + mr->offset, &data, size, |
875 | 164a4dcd | Avi Kivity | mr->ops->impl.min_access_size, |
876 | 164a4dcd | Avi Kivity | mr->ops->impl.max_access_size, |
877 | 164a4dcd | Avi Kivity | memory_region_read_accessor, mr); |
878 | 093bc2cd | Avi Kivity | |
879 | 093bc2cd | Avi Kivity | return data;
|
880 | 093bc2cd | Avi Kivity | } |
881 | 093bc2cd | Avi Kivity | |
882 | 093bc2cd | Avi Kivity | static void memory_region_write_thunk_n(void *_mr, |
883 | 093bc2cd | Avi Kivity | target_phys_addr_t addr, |
884 | 093bc2cd | Avi Kivity | unsigned size,
|
885 | 093bc2cd | Avi Kivity | uint64_t data) |
886 | 093bc2cd | Avi Kivity | { |
887 | 093bc2cd | Avi Kivity | MemoryRegion *mr = _mr; |
888 | 093bc2cd | Avi Kivity | |
889 | 897fa7cf | Avi Kivity | if (!memory_region_access_valid(mr, addr, size, true)) { |
890 | 093bc2cd | Avi Kivity | return; /* FIXME: better signalling */ |
891 | 093bc2cd | Avi Kivity | } |
892 | 093bc2cd | Avi Kivity | |
893 | 74901c3b | Avi Kivity | if (!mr->ops->write) {
|
894 | 74901c3b | Avi Kivity | mr->ops->old_mmio.write[bitops_ffsl(size)](mr->opaque, addr, data); |
895 | 74901c3b | Avi Kivity | return;
|
896 | 74901c3b | Avi Kivity | } |
897 | 74901c3b | Avi Kivity | |
898 | 093bc2cd | Avi Kivity | /* FIXME: support unaligned access */
|
899 | 164a4dcd | Avi Kivity | access_with_adjusted_size(addr + mr->offset, &data, size, |
900 | 164a4dcd | Avi Kivity | mr->ops->impl.min_access_size, |
901 | 164a4dcd | Avi Kivity | mr->ops->impl.max_access_size, |
902 | 164a4dcd | Avi Kivity | memory_region_write_accessor, mr); |
903 | 093bc2cd | Avi Kivity | } |
904 | 093bc2cd | Avi Kivity | |
905 | 093bc2cd | Avi Kivity | static uint32_t memory_region_read_thunk_b(void *mr, target_phys_addr_t addr) |
906 | 093bc2cd | Avi Kivity | { |
907 | 093bc2cd | Avi Kivity | return memory_region_read_thunk_n(mr, addr, 1); |
908 | 093bc2cd | Avi Kivity | } |
909 | 093bc2cd | Avi Kivity | |
910 | 093bc2cd | Avi Kivity | static uint32_t memory_region_read_thunk_w(void *mr, target_phys_addr_t addr) |
911 | 093bc2cd | Avi Kivity | { |
912 | 093bc2cd | Avi Kivity | return memory_region_read_thunk_n(mr, addr, 2); |
913 | 093bc2cd | Avi Kivity | } |
914 | 093bc2cd | Avi Kivity | |
915 | 093bc2cd | Avi Kivity | static uint32_t memory_region_read_thunk_l(void *mr, target_phys_addr_t addr) |
916 | 093bc2cd | Avi Kivity | { |
917 | 093bc2cd | Avi Kivity | return memory_region_read_thunk_n(mr, addr, 4); |
918 | 093bc2cd | Avi Kivity | } |
919 | 093bc2cd | Avi Kivity | |
920 | 093bc2cd | Avi Kivity | static void memory_region_write_thunk_b(void *mr, target_phys_addr_t addr, |
921 | 093bc2cd | Avi Kivity | uint32_t data) |
922 | 093bc2cd | Avi Kivity | { |
923 | 093bc2cd | Avi Kivity | memory_region_write_thunk_n(mr, addr, 1, data);
|
924 | 093bc2cd | Avi Kivity | } |
925 | 093bc2cd | Avi Kivity | |
926 | 093bc2cd | Avi Kivity | static void memory_region_write_thunk_w(void *mr, target_phys_addr_t addr, |
927 | 093bc2cd | Avi Kivity | uint32_t data) |
928 | 093bc2cd | Avi Kivity | { |
929 | 093bc2cd | Avi Kivity | memory_region_write_thunk_n(mr, addr, 2, data);
|
930 | 093bc2cd | Avi Kivity | } |
931 | 093bc2cd | Avi Kivity | |
932 | 093bc2cd | Avi Kivity | static void memory_region_write_thunk_l(void *mr, target_phys_addr_t addr, |
933 | 093bc2cd | Avi Kivity | uint32_t data) |
934 | 093bc2cd | Avi Kivity | { |
935 | 093bc2cd | Avi Kivity | memory_region_write_thunk_n(mr, addr, 4, data);
|
936 | 093bc2cd | Avi Kivity | } |
937 | 093bc2cd | Avi Kivity | |
938 | 093bc2cd | Avi Kivity | static CPUReadMemoryFunc * const memory_region_read_thunk[] = { |
939 | 093bc2cd | Avi Kivity | memory_region_read_thunk_b, |
940 | 093bc2cd | Avi Kivity | memory_region_read_thunk_w, |
941 | 093bc2cd | Avi Kivity | memory_region_read_thunk_l, |
942 | 093bc2cd | Avi Kivity | }; |
943 | 093bc2cd | Avi Kivity | |
944 | 093bc2cd | Avi Kivity | static CPUWriteMemoryFunc * const memory_region_write_thunk[] = { |
945 | 093bc2cd | Avi Kivity | memory_region_write_thunk_b, |
946 | 093bc2cd | Avi Kivity | memory_region_write_thunk_w, |
947 | 093bc2cd | Avi Kivity | memory_region_write_thunk_l, |
948 | 093bc2cd | Avi Kivity | }; |
949 | 093bc2cd | Avi Kivity | |
950 | 16ef61c9 | Avi Kivity | static void memory_region_prepare_ram_addr(MemoryRegion *mr) |
951 | 16ef61c9 | Avi Kivity | { |
952 | 16ef61c9 | Avi Kivity | if (mr->backend_registered) {
|
953 | 16ef61c9 | Avi Kivity | return;
|
954 | 16ef61c9 | Avi Kivity | } |
955 | 16ef61c9 | Avi Kivity | |
956 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_iomem; |
957 | 16ef61c9 | Avi Kivity | mr->ram_addr = cpu_register_io_memory(memory_region_read_thunk, |
958 | 16ef61c9 | Avi Kivity | memory_region_write_thunk, |
959 | 16ef61c9 | Avi Kivity | mr, |
960 | 16ef61c9 | Avi Kivity | mr->ops->endianness); |
961 | 16ef61c9 | Avi Kivity | mr->backend_registered = true;
|
962 | 16ef61c9 | Avi Kivity | } |
963 | 16ef61c9 | Avi Kivity | |
964 | 093bc2cd | Avi Kivity | void memory_region_init_io(MemoryRegion *mr,
|
965 | 093bc2cd | Avi Kivity | const MemoryRegionOps *ops,
|
966 | 093bc2cd | Avi Kivity | void *opaque,
|
967 | 093bc2cd | Avi Kivity | const char *name, |
968 | 093bc2cd | Avi Kivity | uint64_t size) |
969 | 093bc2cd | Avi Kivity | { |
970 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
971 | 093bc2cd | Avi Kivity | mr->ops = ops; |
972 | 093bc2cd | Avi Kivity | mr->opaque = opaque; |
973 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
974 | 16ef61c9 | Avi Kivity | mr->backend_registered = false;
|
975 | 093bc2cd | Avi Kivity | } |
976 | 093bc2cd | Avi Kivity | |
977 | 093bc2cd | Avi Kivity | void memory_region_init_ram(MemoryRegion *mr,
|
978 | 093bc2cd | Avi Kivity | DeviceState *dev, |
979 | 093bc2cd | Avi Kivity | const char *name, |
980 | 093bc2cd | Avi Kivity | uint64_t size) |
981 | 093bc2cd | Avi Kivity | { |
982 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
983 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
984 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_ram; |
985 | 093bc2cd | Avi Kivity | mr->ram_addr = qemu_ram_alloc(dev, name, size); |
986 | 16ef61c9 | Avi Kivity | mr->backend_registered = true;
|
987 | 093bc2cd | Avi Kivity | } |
988 | 093bc2cd | Avi Kivity | |
989 | 093bc2cd | Avi Kivity | void memory_region_init_ram_ptr(MemoryRegion *mr,
|
990 | 093bc2cd | Avi Kivity | DeviceState *dev, |
991 | 093bc2cd | Avi Kivity | const char *name, |
992 | 093bc2cd | Avi Kivity | uint64_t size, |
993 | 093bc2cd | Avi Kivity | void *ptr)
|
994 | 093bc2cd | Avi Kivity | { |
995 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
996 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
997 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_ram_from_ptr; |
998 | 093bc2cd | Avi Kivity | mr->ram_addr = qemu_ram_alloc_from_ptr(dev, name, size, ptr); |
999 | 16ef61c9 | Avi Kivity | mr->backend_registered = true;
|
1000 | 093bc2cd | Avi Kivity | } |
1001 | 093bc2cd | Avi Kivity | |
1002 | 093bc2cd | Avi Kivity | void memory_region_init_alias(MemoryRegion *mr,
|
1003 | 093bc2cd | Avi Kivity | const char *name, |
1004 | 093bc2cd | Avi Kivity | MemoryRegion *orig, |
1005 | 093bc2cd | Avi Kivity | target_phys_addr_t offset, |
1006 | 093bc2cd | Avi Kivity | uint64_t size) |
1007 | 093bc2cd | Avi Kivity | { |
1008 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
1009 | 093bc2cd | Avi Kivity | mr->alias = orig; |
1010 | 093bc2cd | Avi Kivity | mr->alias_offset = offset; |
1011 | 093bc2cd | Avi Kivity | } |
1012 | 093bc2cd | Avi Kivity | |
1013 | d0a9b5bc | Avi Kivity | void memory_region_init_rom_device(MemoryRegion *mr,
|
1014 | d0a9b5bc | Avi Kivity | const MemoryRegionOps *ops,
|
1015 | 75f5941c | Avi Kivity | void *opaque,
|
1016 | d0a9b5bc | Avi Kivity | DeviceState *dev, |
1017 | d0a9b5bc | Avi Kivity | const char *name, |
1018 | d0a9b5bc | Avi Kivity | uint64_t size) |
1019 | d0a9b5bc | Avi Kivity | { |
1020 | d0a9b5bc | Avi Kivity | memory_region_init(mr, name, size); |
1021 | 7bc2b9cd | Avi Kivity | mr->ops = ops; |
1022 | 75f5941c | Avi Kivity | mr->opaque = opaque; |
1023 | d0a9b5bc | Avi Kivity | mr->terminates = true;
|
1024 | d0a9b5bc | Avi Kivity | mr->destructor = memory_region_destructor_rom_device; |
1025 | d0a9b5bc | Avi Kivity | mr->ram_addr = qemu_ram_alloc(dev, name, size); |
1026 | d0a9b5bc | Avi Kivity | mr->ram_addr |= cpu_register_io_memory(memory_region_read_thunk, |
1027 | d0a9b5bc | Avi Kivity | memory_region_write_thunk, |
1028 | d0a9b5bc | Avi Kivity | mr, |
1029 | d0a9b5bc | Avi Kivity | mr->ops->endianness); |
1030 | d0a9b5bc | Avi Kivity | mr->ram_addr |= IO_MEM_ROMD; |
1031 | d0a9b5bc | Avi Kivity | mr->backend_registered = true;
|
1032 | d0a9b5bc | Avi Kivity | } |
1033 | d0a9b5bc | Avi Kivity | |
1034 | 093bc2cd | Avi Kivity | void memory_region_destroy(MemoryRegion *mr)
|
1035 | 093bc2cd | Avi Kivity | { |
1036 | 093bc2cd | Avi Kivity | assert(QTAILQ_EMPTY(&mr->subregions)); |
1037 | 545e92e0 | Avi Kivity | mr->destructor(mr); |
1038 | 093bc2cd | Avi Kivity | memory_region_clear_coalescing(mr); |
1039 | 7267c094 | Anthony Liguori | g_free((char *)mr->name);
|
1040 | 7267c094 | Anthony Liguori | g_free(mr->ioeventfds); |
1041 | 093bc2cd | Avi Kivity | } |
1042 | 093bc2cd | Avi Kivity | |
1043 | 093bc2cd | Avi Kivity | uint64_t memory_region_size(MemoryRegion *mr) |
1044 | 093bc2cd | Avi Kivity | { |
1045 | 08dafab4 | Avi Kivity | if (int128_eq(mr->size, int128_2_64())) {
|
1046 | 08dafab4 | Avi Kivity | return UINT64_MAX;
|
1047 | 08dafab4 | Avi Kivity | } |
1048 | 08dafab4 | Avi Kivity | return int128_get64(mr->size);
|
1049 | 093bc2cd | Avi Kivity | } |
1050 | 093bc2cd | Avi Kivity | |
1051 | 093bc2cd | Avi Kivity | void memory_region_set_offset(MemoryRegion *mr, target_phys_addr_t offset)
|
1052 | 093bc2cd | Avi Kivity | { |
1053 | 093bc2cd | Avi Kivity | mr->offset = offset; |
1054 | 093bc2cd | Avi Kivity | } |
1055 | 093bc2cd | Avi Kivity | |
1056 | 093bc2cd | Avi Kivity | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
1057 | 093bc2cd | Avi Kivity | { |
1058 | 5a583347 | Avi Kivity | uint8_t mask = 1 << client;
|
1059 | 5a583347 | Avi Kivity | |
1060 | 5a583347 | Avi Kivity | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
1061 | 5a583347 | Avi Kivity | memory_region_update_topology(); |
1062 | 093bc2cd | Avi Kivity | } |
1063 | 093bc2cd | Avi Kivity | |
1064 | 093bc2cd | Avi Kivity | bool memory_region_get_dirty(MemoryRegion *mr, target_phys_addr_t addr,
|
1065 | 093bc2cd | Avi Kivity | unsigned client)
|
1066 | 093bc2cd | Avi Kivity | { |
1067 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1068 | 5a583347 | Avi Kivity | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, 1 << client); |
1069 | 093bc2cd | Avi Kivity | } |
1070 | 093bc2cd | Avi Kivity | |
1071 | 093bc2cd | Avi Kivity | void memory_region_set_dirty(MemoryRegion *mr, target_phys_addr_t addr)
|
1072 | 093bc2cd | Avi Kivity | { |
1073 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1074 | 5a583347 | Avi Kivity | return cpu_physical_memory_set_dirty(mr->ram_addr + addr);
|
1075 | 093bc2cd | Avi Kivity | } |
1076 | 093bc2cd | Avi Kivity | |
1077 | 093bc2cd | Avi Kivity | void memory_region_sync_dirty_bitmap(MemoryRegion *mr)
|
1078 | 093bc2cd | Avi Kivity | { |
1079 | 5a583347 | Avi Kivity | FlatRange *fr; |
1080 | 5a583347 | Avi Kivity | |
1081 | cc31e6e7 | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, &address_space_memory.current_map) { |
1082 | 5a583347 | Avi Kivity | if (fr->mr == mr) {
|
1083 | 08dafab4 | Avi Kivity | cpu_physical_sync_dirty_bitmap(int128_get64(fr->addr.start), |
1084 | 08dafab4 | Avi Kivity | int128_get64(addrrange_end(fr->addr))); |
1085 | 5a583347 | Avi Kivity | } |
1086 | 5a583347 | Avi Kivity | } |
1087 | 093bc2cd | Avi Kivity | } |
1088 | 093bc2cd | Avi Kivity | |
1089 | 093bc2cd | Avi Kivity | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
1090 | 093bc2cd | Avi Kivity | { |
1091 | fb1cd6f9 | Avi Kivity | if (mr->readonly != readonly) {
|
1092 | fb1cd6f9 | Avi Kivity | mr->readonly = readonly; |
1093 | fb1cd6f9 | Avi Kivity | memory_region_update_topology(); |
1094 | fb1cd6f9 | Avi Kivity | } |
1095 | 093bc2cd | Avi Kivity | } |
1096 | 093bc2cd | Avi Kivity | |
1097 | d0a9b5bc | Avi Kivity | void memory_region_rom_device_set_readable(MemoryRegion *mr, bool readable) |
1098 | d0a9b5bc | Avi Kivity | { |
1099 | d0a9b5bc | Avi Kivity | if (mr->readable != readable) {
|
1100 | d0a9b5bc | Avi Kivity | mr->readable = readable; |
1101 | d0a9b5bc | Avi Kivity | memory_region_update_topology(); |
1102 | d0a9b5bc | Avi Kivity | } |
1103 | d0a9b5bc | Avi Kivity | } |
1104 | d0a9b5bc | Avi Kivity | |
1105 | 093bc2cd | Avi Kivity | void memory_region_reset_dirty(MemoryRegion *mr, target_phys_addr_t addr,
|
1106 | 093bc2cd | Avi Kivity | target_phys_addr_t size, unsigned client)
|
1107 | 093bc2cd | Avi Kivity | { |
1108 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1109 | 5a583347 | Avi Kivity | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
1110 | 5a583347 | Avi Kivity | mr->ram_addr + addr + size, |
1111 | 5a583347 | Avi Kivity | 1 << client);
|
1112 | 093bc2cd | Avi Kivity | } |
1113 | 093bc2cd | Avi Kivity | |
1114 | 093bc2cd | Avi Kivity | void *memory_region_get_ram_ptr(MemoryRegion *mr)
|
1115 | 093bc2cd | Avi Kivity | { |
1116 | 093bc2cd | Avi Kivity | if (mr->alias) {
|
1117 | 093bc2cd | Avi Kivity | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset;
|
1118 | 093bc2cd | Avi Kivity | } |
1119 | 093bc2cd | Avi Kivity | |
1120 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1121 | 093bc2cd | Avi Kivity | |
1122 | 021d26d1 | Jan Kiszka | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK);
|
1123 | 093bc2cd | Avi Kivity | } |
1124 | 093bc2cd | Avi Kivity | |
1125 | 093bc2cd | Avi Kivity | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
1126 | 093bc2cd | Avi Kivity | { |
1127 | 093bc2cd | Avi Kivity | FlatRange *fr; |
1128 | 093bc2cd | Avi Kivity | CoalescedMemoryRange *cmr; |
1129 | 093bc2cd | Avi Kivity | AddrRange tmp; |
1130 | 093bc2cd | Avi Kivity | |
1131 | cc31e6e7 | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, &address_space_memory.current_map) { |
1132 | 093bc2cd | Avi Kivity | if (fr->mr == mr) {
|
1133 | 08dafab4 | Avi Kivity | qemu_unregister_coalesced_mmio(int128_get64(fr->addr.start), |
1134 | 08dafab4 | Avi Kivity | int128_get64(fr->addr.size)); |
1135 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
1136 | 093bc2cd | Avi Kivity | tmp = addrrange_shift(cmr->addr, |
1137 | 08dafab4 | Avi Kivity | int128_sub(fr->addr.start, |
1138 | 08dafab4 | Avi Kivity | int128_make64(fr->offset_in_region))); |
1139 | 093bc2cd | Avi Kivity | if (!addrrange_intersects(tmp, fr->addr)) {
|
1140 | 093bc2cd | Avi Kivity | continue;
|
1141 | 093bc2cd | Avi Kivity | } |
1142 | 093bc2cd | Avi Kivity | tmp = addrrange_intersection(tmp, fr->addr); |
1143 | 08dafab4 | Avi Kivity | qemu_register_coalesced_mmio(int128_get64(tmp.start), |
1144 | 08dafab4 | Avi Kivity | int128_get64(tmp.size)); |
1145 | 093bc2cd | Avi Kivity | } |
1146 | 093bc2cd | Avi Kivity | } |
1147 | 093bc2cd | Avi Kivity | } |
1148 | 093bc2cd | Avi Kivity | } |
1149 | 093bc2cd | Avi Kivity | |
1150 | 093bc2cd | Avi Kivity | void memory_region_set_coalescing(MemoryRegion *mr)
|
1151 | 093bc2cd | Avi Kivity | { |
1152 | 093bc2cd | Avi Kivity | memory_region_clear_coalescing(mr); |
1153 | 08dafab4 | Avi Kivity | memory_region_add_coalescing(mr, 0, int128_get64(mr->size));
|
1154 | 093bc2cd | Avi Kivity | } |
1155 | 093bc2cd | Avi Kivity | |
1156 | 093bc2cd | Avi Kivity | void memory_region_add_coalescing(MemoryRegion *mr,
|
1157 | 093bc2cd | Avi Kivity | target_phys_addr_t offset, |
1158 | 093bc2cd | Avi Kivity | uint64_t size) |
1159 | 093bc2cd | Avi Kivity | { |
1160 | 7267c094 | Anthony Liguori | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr));
|
1161 | 093bc2cd | Avi Kivity | |
1162 | 08dafab4 | Avi Kivity | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
1163 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
1164 | 093bc2cd | Avi Kivity | memory_region_update_coalesced_range(mr); |
1165 | 093bc2cd | Avi Kivity | } |
1166 | 093bc2cd | Avi Kivity | |
1167 | 093bc2cd | Avi Kivity | void memory_region_clear_coalescing(MemoryRegion *mr)
|
1168 | 093bc2cd | Avi Kivity | { |
1169 | 093bc2cd | Avi Kivity | CoalescedMemoryRange *cmr; |
1170 | 093bc2cd | Avi Kivity | |
1171 | 093bc2cd | Avi Kivity | while (!QTAILQ_EMPTY(&mr->coalesced)) {
|
1172 | 093bc2cd | Avi Kivity | cmr = QTAILQ_FIRST(&mr->coalesced); |
1173 | 093bc2cd | Avi Kivity | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
1174 | 7267c094 | Anthony Liguori | g_free(cmr); |
1175 | 093bc2cd | Avi Kivity | } |
1176 | 093bc2cd | Avi Kivity | memory_region_update_coalesced_range(mr); |
1177 | 093bc2cd | Avi Kivity | } |
1178 | 093bc2cd | Avi Kivity | |
1179 | 3e9d69e7 | Avi Kivity | void memory_region_add_eventfd(MemoryRegion *mr,
|
1180 | 3e9d69e7 | Avi Kivity | target_phys_addr_t addr, |
1181 | 3e9d69e7 | Avi Kivity | unsigned size,
|
1182 | 3e9d69e7 | Avi Kivity | bool match_data,
|
1183 | 3e9d69e7 | Avi Kivity | uint64_t data, |
1184 | 3e9d69e7 | Avi Kivity | int fd)
|
1185 | 3e9d69e7 | Avi Kivity | { |
1186 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd mrfd = { |
1187 | 08dafab4 | Avi Kivity | .addr.start = int128_make64(addr), |
1188 | 08dafab4 | Avi Kivity | .addr.size = int128_make64(size), |
1189 | 3e9d69e7 | Avi Kivity | .match_data = match_data, |
1190 | 3e9d69e7 | Avi Kivity | .data = data, |
1191 | 3e9d69e7 | Avi Kivity | .fd = fd, |
1192 | 3e9d69e7 | Avi Kivity | }; |
1193 | 3e9d69e7 | Avi Kivity | unsigned i;
|
1194 | 3e9d69e7 | Avi Kivity | |
1195 | 3e9d69e7 | Avi Kivity | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
1196 | 3e9d69e7 | Avi Kivity | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) {
|
1197 | 3e9d69e7 | Avi Kivity | break;
|
1198 | 3e9d69e7 | Avi Kivity | } |
1199 | 3e9d69e7 | Avi Kivity | } |
1200 | 3e9d69e7 | Avi Kivity | ++mr->ioeventfd_nb; |
1201 | 7267c094 | Anthony Liguori | mr->ioeventfds = g_realloc(mr->ioeventfds, |
1202 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb);
|
1203 | 3e9d69e7 | Avi Kivity | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i],
|
1204 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
1205 | 3e9d69e7 | Avi Kivity | mr->ioeventfds[i] = mrfd; |
1206 | 3e9d69e7 | Avi Kivity | memory_region_update_topology(); |
1207 | 3e9d69e7 | Avi Kivity | } |
1208 | 3e9d69e7 | Avi Kivity | |
1209 | 3e9d69e7 | Avi Kivity | void memory_region_del_eventfd(MemoryRegion *mr,
|
1210 | 3e9d69e7 | Avi Kivity | target_phys_addr_t addr, |
1211 | 3e9d69e7 | Avi Kivity | unsigned size,
|
1212 | 3e9d69e7 | Avi Kivity | bool match_data,
|
1213 | 3e9d69e7 | Avi Kivity | uint64_t data, |
1214 | 3e9d69e7 | Avi Kivity | int fd)
|
1215 | 3e9d69e7 | Avi Kivity | { |
1216 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd mrfd = { |
1217 | 08dafab4 | Avi Kivity | .addr.start = int128_make64(addr), |
1218 | 08dafab4 | Avi Kivity | .addr.size = int128_make64(size), |
1219 | 3e9d69e7 | Avi Kivity | .match_data = match_data, |
1220 | 3e9d69e7 | Avi Kivity | .data = data, |
1221 | 3e9d69e7 | Avi Kivity | .fd = fd, |
1222 | 3e9d69e7 | Avi Kivity | }; |
1223 | 3e9d69e7 | Avi Kivity | unsigned i;
|
1224 | 3e9d69e7 | Avi Kivity | |
1225 | 3e9d69e7 | Avi Kivity | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
1226 | 3e9d69e7 | Avi Kivity | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) {
|
1227 | 3e9d69e7 | Avi Kivity | break;
|
1228 | 3e9d69e7 | Avi Kivity | } |
1229 | 3e9d69e7 | Avi Kivity | } |
1230 | 3e9d69e7 | Avi Kivity | assert(i != mr->ioeventfd_nb); |
1231 | 3e9d69e7 | Avi Kivity | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1],
|
1232 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
1233 | 3e9d69e7 | Avi Kivity | --mr->ioeventfd_nb; |
1234 | 7267c094 | Anthony Liguori | mr->ioeventfds = g_realloc(mr->ioeventfds, |
1235 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
1236 | 3e9d69e7 | Avi Kivity | memory_region_update_topology(); |
1237 | 3e9d69e7 | Avi Kivity | } |
1238 | 3e9d69e7 | Avi Kivity | |
1239 | 093bc2cd | Avi Kivity | static void memory_region_add_subregion_common(MemoryRegion *mr, |
1240 | 093bc2cd | Avi Kivity | target_phys_addr_t offset, |
1241 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1242 | 093bc2cd | Avi Kivity | { |
1243 | 093bc2cd | Avi Kivity | MemoryRegion *other; |
1244 | 093bc2cd | Avi Kivity | |
1245 | 093bc2cd | Avi Kivity | assert(!subregion->parent); |
1246 | 093bc2cd | Avi Kivity | subregion->parent = mr; |
1247 | 093bc2cd | Avi Kivity | subregion->addr = offset; |
1248 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
1249 | 093bc2cd | Avi Kivity | if (subregion->may_overlap || other->may_overlap) {
|
1250 | 093bc2cd | Avi Kivity | continue;
|
1251 | 093bc2cd | Avi Kivity | } |
1252 | 08dafab4 | Avi Kivity | if (int128_gt(int128_make64(offset),
|
1253 | 08dafab4 | Avi Kivity | int128_add(int128_make64(other->addr), other->size)) |
1254 | 08dafab4 | Avi Kivity | || int128_le(int128_add(int128_make64(offset), subregion->size), |
1255 | 08dafab4 | Avi Kivity | int128_make64(other->addr))) { |
1256 | 093bc2cd | Avi Kivity | continue;
|
1257 | 093bc2cd | Avi Kivity | } |
1258 | a5e1cbc8 | Anthony Liguori | #if 0
|
1259 | 860329b2 | Michael Walle | printf("warning: subregion collision %llx/%llx (%s) "
|
1260 | 860329b2 | Michael Walle | "vs %llx/%llx (%s)\n",
|
1261 | 093bc2cd | Avi Kivity | (unsigned long long)offset,
|
1262 | 08dafab4 | Avi Kivity | (unsigned long long)int128_get64(subregion->size),
|
1263 | 860329b2 | Michael Walle | subregion->name,
|
1264 | 860329b2 | Michael Walle | (unsigned long long)other->addr,
|
1265 | 08dafab4 | Avi Kivity | (unsigned long long)int128_get64(other->size),
|
1266 | 860329b2 | Michael Walle | other->name);
|
1267 | a5e1cbc8 | Anthony Liguori | #endif
|
1268 | 093bc2cd | Avi Kivity | } |
1269 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
1270 | 093bc2cd | Avi Kivity | if (subregion->priority >= other->priority) {
|
1271 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
1272 | 093bc2cd | Avi Kivity | goto done;
|
1273 | 093bc2cd | Avi Kivity | } |
1274 | 093bc2cd | Avi Kivity | } |
1275 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
1276 | 093bc2cd | Avi Kivity | done:
|
1277 | 093bc2cd | Avi Kivity | memory_region_update_topology(); |
1278 | 093bc2cd | Avi Kivity | } |
1279 | 093bc2cd | Avi Kivity | |
1280 | 093bc2cd | Avi Kivity | |
1281 | 093bc2cd | Avi Kivity | void memory_region_add_subregion(MemoryRegion *mr,
|
1282 | 093bc2cd | Avi Kivity | target_phys_addr_t offset, |
1283 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1284 | 093bc2cd | Avi Kivity | { |
1285 | 093bc2cd | Avi Kivity | subregion->may_overlap = false;
|
1286 | 093bc2cd | Avi Kivity | subregion->priority = 0;
|
1287 | 093bc2cd | Avi Kivity | memory_region_add_subregion_common(mr, offset, subregion); |
1288 | 093bc2cd | Avi Kivity | } |
1289 | 093bc2cd | Avi Kivity | |
1290 | 093bc2cd | Avi Kivity | void memory_region_add_subregion_overlap(MemoryRegion *mr,
|
1291 | 093bc2cd | Avi Kivity | target_phys_addr_t offset, |
1292 | 093bc2cd | Avi Kivity | MemoryRegion *subregion, |
1293 | 093bc2cd | Avi Kivity | unsigned priority)
|
1294 | 093bc2cd | Avi Kivity | { |
1295 | 093bc2cd | Avi Kivity | subregion->may_overlap = true;
|
1296 | 093bc2cd | Avi Kivity | subregion->priority = priority; |
1297 | 093bc2cd | Avi Kivity | memory_region_add_subregion_common(mr, offset, subregion); |
1298 | 093bc2cd | Avi Kivity | } |
1299 | 093bc2cd | Avi Kivity | |
1300 | 093bc2cd | Avi Kivity | void memory_region_del_subregion(MemoryRegion *mr,
|
1301 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1302 | 093bc2cd | Avi Kivity | { |
1303 | 093bc2cd | Avi Kivity | assert(subregion->parent == mr); |
1304 | 093bc2cd | Avi Kivity | subregion->parent = NULL;
|
1305 | 093bc2cd | Avi Kivity | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
1306 | 093bc2cd | Avi Kivity | memory_region_update_topology(); |
1307 | 093bc2cd | Avi Kivity | } |
1308 | 1c0ffa58 | Avi Kivity | |
1309 | 1c0ffa58 | Avi Kivity | void set_system_memory_map(MemoryRegion *mr)
|
1310 | 1c0ffa58 | Avi Kivity | { |
1311 | cc31e6e7 | Avi Kivity | address_space_memory.root = mr; |
1312 | 1c0ffa58 | Avi Kivity | memory_region_update_topology(); |
1313 | 1c0ffa58 | Avi Kivity | } |
1314 | 658b2224 | Avi Kivity | |
1315 | 658b2224 | Avi Kivity | void set_system_io_map(MemoryRegion *mr)
|
1316 | 658b2224 | Avi Kivity | { |
1317 | 658b2224 | Avi Kivity | address_space_io.root = mr; |
1318 | 658b2224 | Avi Kivity | memory_region_update_topology(); |
1319 | 658b2224 | Avi Kivity | } |
1320 | 314e2987 | Blue Swirl | |
1321 | 314e2987 | Blue Swirl | typedef struct MemoryRegionList MemoryRegionList; |
1322 | 314e2987 | Blue Swirl | |
1323 | 314e2987 | Blue Swirl | struct MemoryRegionList {
|
1324 | 314e2987 | Blue Swirl | const MemoryRegion *mr;
|
1325 | 314e2987 | Blue Swirl | bool printed;
|
1326 | 314e2987 | Blue Swirl | QTAILQ_ENTRY(MemoryRegionList) queue; |
1327 | 314e2987 | Blue Swirl | }; |
1328 | 314e2987 | Blue Swirl | |
1329 | 314e2987 | Blue Swirl | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead;
|
1330 | 314e2987 | Blue Swirl | |
1331 | 314e2987 | Blue Swirl | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
1332 | 314e2987 | Blue Swirl | const MemoryRegion *mr, unsigned int level, |
1333 | 314e2987 | Blue Swirl | target_phys_addr_t base, |
1334 | 9479c57a | Jan Kiszka | MemoryRegionListHead *alias_print_queue) |
1335 | 314e2987 | Blue Swirl | { |
1336 | 9479c57a | Jan Kiszka | MemoryRegionList *new_ml, *ml, *next_ml; |
1337 | 9479c57a | Jan Kiszka | MemoryRegionListHead submr_print_queue; |
1338 | 314e2987 | Blue Swirl | const MemoryRegion *submr;
|
1339 | 314e2987 | Blue Swirl | unsigned int i; |
1340 | 314e2987 | Blue Swirl | |
1341 | 314e2987 | Blue Swirl | if (!mr) {
|
1342 | 314e2987 | Blue Swirl | return;
|
1343 | 314e2987 | Blue Swirl | } |
1344 | 314e2987 | Blue Swirl | |
1345 | 314e2987 | Blue Swirl | for (i = 0; i < level; i++) { |
1346 | 314e2987 | Blue Swirl | mon_printf(f, " ");
|
1347 | 314e2987 | Blue Swirl | } |
1348 | 314e2987 | Blue Swirl | |
1349 | 314e2987 | Blue Swirl | if (mr->alias) {
|
1350 | 314e2987 | Blue Swirl | MemoryRegionList *ml; |
1351 | 314e2987 | Blue Swirl | bool found = false; |
1352 | 314e2987 | Blue Swirl | |
1353 | 314e2987 | Blue Swirl | /* check if the alias is already in the queue */
|
1354 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
1355 | 314e2987 | Blue Swirl | if (ml->mr == mr->alias && !ml->printed) {
|
1356 | 314e2987 | Blue Swirl | found = true;
|
1357 | 314e2987 | Blue Swirl | } |
1358 | 314e2987 | Blue Swirl | } |
1359 | 314e2987 | Blue Swirl | |
1360 | 314e2987 | Blue Swirl | if (!found) {
|
1361 | 314e2987 | Blue Swirl | ml = g_new(MemoryRegionList, 1);
|
1362 | 314e2987 | Blue Swirl | ml->mr = mr->alias; |
1363 | 314e2987 | Blue Swirl | ml->printed = false;
|
1364 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
1365 | 314e2987 | Blue Swirl | } |
1366 | 4b474ba7 | Jan Kiszka | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): alias %s @%s " |
1367 | 314e2987 | Blue Swirl | TARGET_FMT_plx "-" TARGET_FMT_plx "\n", |
1368 | 314e2987 | Blue Swirl | base + mr->addr, |
1369 | 08dafab4 | Avi Kivity | base + mr->addr |
1370 | 08dafab4 | Avi Kivity | + (target_phys_addr_t)int128_get64(mr->size) - 1,
|
1371 | 4b474ba7 | Jan Kiszka | mr->priority, |
1372 | 314e2987 | Blue Swirl | mr->name, |
1373 | 314e2987 | Blue Swirl | mr->alias->name, |
1374 | 314e2987 | Blue Swirl | mr->alias_offset, |
1375 | 08dafab4 | Avi Kivity | mr->alias_offset |
1376 | 08dafab4 | Avi Kivity | + (target_phys_addr_t)int128_get64(mr->size) - 1);
|
1377 | 314e2987 | Blue Swirl | } else {
|
1378 | 4b474ba7 | Jan Kiszka | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): %s\n", |
1379 | 314e2987 | Blue Swirl | base + mr->addr, |
1380 | 08dafab4 | Avi Kivity | base + mr->addr |
1381 | 08dafab4 | Avi Kivity | + (target_phys_addr_t)int128_get64(mr->size) - 1,
|
1382 | 4b474ba7 | Jan Kiszka | mr->priority, |
1383 | 314e2987 | Blue Swirl | mr->name); |
1384 | 314e2987 | Blue Swirl | } |
1385 | 9479c57a | Jan Kiszka | |
1386 | 9479c57a | Jan Kiszka | QTAILQ_INIT(&submr_print_queue); |
1387 | 9479c57a | Jan Kiszka | |
1388 | 314e2987 | Blue Swirl | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
1389 | 9479c57a | Jan Kiszka | new_ml = g_new(MemoryRegionList, 1);
|
1390 | 9479c57a | Jan Kiszka | new_ml->mr = submr; |
1391 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
1392 | 9479c57a | Jan Kiszka | if (new_ml->mr->addr < ml->mr->addr ||
|
1393 | 9479c57a | Jan Kiszka | (new_ml->mr->addr == ml->mr->addr && |
1394 | 9479c57a | Jan Kiszka | new_ml->mr->priority > ml->mr->priority)) { |
1395 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
1396 | 9479c57a | Jan Kiszka | new_ml = NULL;
|
1397 | 9479c57a | Jan Kiszka | break;
|
1398 | 9479c57a | Jan Kiszka | } |
1399 | 9479c57a | Jan Kiszka | } |
1400 | 9479c57a | Jan Kiszka | if (new_ml) {
|
1401 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
1402 | 9479c57a | Jan Kiszka | } |
1403 | 9479c57a | Jan Kiszka | } |
1404 | 9479c57a | Jan Kiszka | |
1405 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
1406 | 9479c57a | Jan Kiszka | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr,
|
1407 | 9479c57a | Jan Kiszka | alias_print_queue); |
1408 | 9479c57a | Jan Kiszka | } |
1409 | 9479c57a | Jan Kiszka | |
1410 | 88365e47 | Avi Kivity | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
1411 | 9479c57a | Jan Kiszka | g_free(ml); |
1412 | 314e2987 | Blue Swirl | } |
1413 | 314e2987 | Blue Swirl | } |
1414 | 314e2987 | Blue Swirl | |
1415 | 314e2987 | Blue Swirl | void mtree_info(fprintf_function mon_printf, void *f) |
1416 | 314e2987 | Blue Swirl | { |
1417 | 314e2987 | Blue Swirl | MemoryRegionListHead ml_head; |
1418 | 314e2987 | Blue Swirl | MemoryRegionList *ml, *ml2; |
1419 | 314e2987 | Blue Swirl | |
1420 | 314e2987 | Blue Swirl | QTAILQ_INIT(&ml_head); |
1421 | 314e2987 | Blue Swirl | |
1422 | 314e2987 | Blue Swirl | mon_printf(f, "memory\n");
|
1423 | 314e2987 | Blue Swirl | mtree_print_mr(mon_printf, f, address_space_memory.root, 0, 0, &ml_head); |
1424 | 314e2987 | Blue Swirl | |
1425 | 314e2987 | Blue Swirl | /* print aliased regions */
|
1426 | 314e2987 | Blue Swirl | QTAILQ_FOREACH(ml, &ml_head, queue) { |
1427 | 314e2987 | Blue Swirl | if (!ml->printed) {
|
1428 | 314e2987 | Blue Swirl | mon_printf(f, "%s\n", ml->mr->name);
|
1429 | 314e2987 | Blue Swirl | mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head); |
1430 | 314e2987 | Blue Swirl | } |
1431 | 314e2987 | Blue Swirl | } |
1432 | 314e2987 | Blue Swirl | |
1433 | 314e2987 | Blue Swirl | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
1434 | 88365e47 | Avi Kivity | g_free(ml); |
1435 | 314e2987 | Blue Swirl | } |
1436 | 314e2987 | Blue Swirl | |
1437 | 06631810 | Jan Kiszka | if (address_space_io.root &&
|
1438 | 06631810 | Jan Kiszka | !QTAILQ_EMPTY(&address_space_io.root->subregions)) { |
1439 | 06631810 | Jan Kiszka | QTAILQ_INIT(&ml_head); |
1440 | 06631810 | Jan Kiszka | mon_printf(f, "I/O\n");
|
1441 | 06631810 | Jan Kiszka | mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head); |
1442 | 06631810 | Jan Kiszka | } |
1443 | 314e2987 | Blue Swirl | } |