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1 | 093bc2cd | Avi Kivity | /*
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2 | 093bc2cd | Avi Kivity | * Physical memory management
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3 | 093bc2cd | Avi Kivity | *
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4 | 093bc2cd | Avi Kivity | * Copyright 2011 Red Hat, Inc. and/or its affiliates
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5 | 093bc2cd | Avi Kivity | *
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6 | 093bc2cd | Avi Kivity | * Authors:
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7 | 093bc2cd | Avi Kivity | * Avi Kivity <avi@redhat.com>
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8 | 093bc2cd | Avi Kivity | *
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9 | 093bc2cd | Avi Kivity | * This work is licensed under the terms of the GNU GPL, version 2. See
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10 | 093bc2cd | Avi Kivity | * the COPYING file in the top-level directory.
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11 | 093bc2cd | Avi Kivity | *
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12 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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13 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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14 | 093bc2cd | Avi Kivity | */
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15 | 093bc2cd | Avi Kivity | |
16 | 022c62cb | Paolo Bonzini | #include "exec/memory.h" |
17 | 022c62cb | Paolo Bonzini | #include "exec/address-spaces.h" |
18 | 022c62cb | Paolo Bonzini | #include "exec/ioport.h" |
19 | 1de7afc9 | Paolo Bonzini | #include "qemu/bitops.h" |
20 | 9c17d615 | Paolo Bonzini | #include "sysemu/kvm.h" |
21 | 093bc2cd | Avi Kivity | #include <assert.h> |
22 | 093bc2cd | Avi Kivity | |
23 | 022c62cb | Paolo Bonzini | #include "exec/memory-internal.h" |
24 | 67d95c15 | Avi Kivity | |
25 | 22bde714 | Jan Kiszka | static unsigned memory_region_transaction_depth; |
26 | 22bde714 | Jan Kiszka | static bool memory_region_update_pending; |
27 | 7664e80c | Avi Kivity | static bool global_dirty_log = false; |
28 | 7664e80c | Avi Kivity | |
29 | 72e22d2f | Avi Kivity | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners
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30 | 72e22d2f | Avi Kivity | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
31 | 4ef4db86 | Avi Kivity | |
32 | 0d673e36 | Avi Kivity | static QTAILQ_HEAD(, AddressSpace) address_spaces
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33 | 0d673e36 | Avi Kivity | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
34 | 0d673e36 | Avi Kivity | |
35 | 093bc2cd | Avi Kivity | typedef struct AddrRange AddrRange; |
36 | 093bc2cd | Avi Kivity | |
37 | 8417cebf | Avi Kivity | /*
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38 | 8417cebf | Avi Kivity | * Note using signed integers limits us to physical addresses at most
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39 | 8417cebf | Avi Kivity | * 63 bits wide. They are needed for negative offsetting in aliases
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40 | 8417cebf | Avi Kivity | * (large MemoryRegion::alias_offset).
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41 | 8417cebf | Avi Kivity | */
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42 | 093bc2cd | Avi Kivity | struct AddrRange {
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43 | 08dafab4 | Avi Kivity | Int128 start; |
44 | 08dafab4 | Avi Kivity | Int128 size; |
45 | 093bc2cd | Avi Kivity | }; |
46 | 093bc2cd | Avi Kivity | |
47 | 08dafab4 | Avi Kivity | static AddrRange addrrange_make(Int128 start, Int128 size)
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48 | 093bc2cd | Avi Kivity | { |
49 | 093bc2cd | Avi Kivity | return (AddrRange) { start, size };
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50 | 093bc2cd | Avi Kivity | } |
51 | 093bc2cd | Avi Kivity | |
52 | 093bc2cd | Avi Kivity | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
53 | 093bc2cd | Avi Kivity | { |
54 | 08dafab4 | Avi Kivity | return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size);
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55 | 093bc2cd | Avi Kivity | } |
56 | 093bc2cd | Avi Kivity | |
57 | 08dafab4 | Avi Kivity | static Int128 addrrange_end(AddrRange r)
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58 | 093bc2cd | Avi Kivity | { |
59 | 08dafab4 | Avi Kivity | return int128_add(r.start, r.size);
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60 | 093bc2cd | Avi Kivity | } |
61 | 093bc2cd | Avi Kivity | |
62 | 08dafab4 | Avi Kivity | static AddrRange addrrange_shift(AddrRange range, Int128 delta)
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63 | 093bc2cd | Avi Kivity | { |
64 | 08dafab4 | Avi Kivity | int128_addto(&range.start, delta); |
65 | 093bc2cd | Avi Kivity | return range;
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66 | 093bc2cd | Avi Kivity | } |
67 | 093bc2cd | Avi Kivity | |
68 | 08dafab4 | Avi Kivity | static bool addrrange_contains(AddrRange range, Int128 addr) |
69 | 08dafab4 | Avi Kivity | { |
70 | 08dafab4 | Avi Kivity | return int128_ge(addr, range.start)
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71 | 08dafab4 | Avi Kivity | && int128_lt(addr, addrrange_end(range)); |
72 | 08dafab4 | Avi Kivity | } |
73 | 08dafab4 | Avi Kivity | |
74 | 093bc2cd | Avi Kivity | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
75 | 093bc2cd | Avi Kivity | { |
76 | 08dafab4 | Avi Kivity | return addrrange_contains(r1, r2.start)
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77 | 08dafab4 | Avi Kivity | || addrrange_contains(r2, r1.start); |
78 | 093bc2cd | Avi Kivity | } |
79 | 093bc2cd | Avi Kivity | |
80 | 093bc2cd | Avi Kivity | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2)
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81 | 093bc2cd | Avi Kivity | { |
82 | 08dafab4 | Avi Kivity | Int128 start = int128_max(r1.start, r2.start); |
83 | 08dafab4 | Avi Kivity | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
84 | 08dafab4 | Avi Kivity | return addrrange_make(start, int128_sub(end, start));
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85 | 093bc2cd | Avi Kivity | } |
86 | 093bc2cd | Avi Kivity | |
87 | 0e0d36b4 | Avi Kivity | enum ListenerDirection { Forward, Reverse };
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88 | 0e0d36b4 | Avi Kivity | |
89 | 7376e582 | Avi Kivity | static bool memory_listener_match(MemoryListener *listener, |
90 | 7376e582 | Avi Kivity | MemoryRegionSection *section) |
91 | 7376e582 | Avi Kivity | { |
92 | 7376e582 | Avi Kivity | return !listener->address_space_filter
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93 | 7376e582 | Avi Kivity | || listener->address_space_filter == section->address_space; |
94 | 7376e582 | Avi Kivity | } |
95 | 7376e582 | Avi Kivity | |
96 | 7376e582 | Avi Kivity | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
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97 | 0e0d36b4 | Avi Kivity | do { \
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98 | 0e0d36b4 | Avi Kivity | MemoryListener *_listener; \ |
99 | 0e0d36b4 | Avi Kivity | \ |
100 | 0e0d36b4 | Avi Kivity | switch (_direction) { \
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101 | 0e0d36b4 | Avi Kivity | case Forward: \
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102 | 0e0d36b4 | Avi Kivity | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
103 | 975aefe0 | Avi Kivity | if (_listener->_callback) { \
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104 | 975aefe0 | Avi Kivity | _listener->_callback(_listener, ##_args); \ |
105 | 975aefe0 | Avi Kivity | } \ |
106 | 0e0d36b4 | Avi Kivity | } \ |
107 | 0e0d36b4 | Avi Kivity | break; \
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108 | 0e0d36b4 | Avi Kivity | case Reverse: \
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109 | 0e0d36b4 | Avi Kivity | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
110 | 0e0d36b4 | Avi Kivity | memory_listeners, link) { \ |
111 | 975aefe0 | Avi Kivity | if (_listener->_callback) { \
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112 | 975aefe0 | Avi Kivity | _listener->_callback(_listener, ##_args); \ |
113 | 975aefe0 | Avi Kivity | } \ |
114 | 0e0d36b4 | Avi Kivity | } \ |
115 | 0e0d36b4 | Avi Kivity | break; \
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116 | 0e0d36b4 | Avi Kivity | default: \
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117 | 0e0d36b4 | Avi Kivity | abort(); \ |
118 | 0e0d36b4 | Avi Kivity | } \ |
119 | 0e0d36b4 | Avi Kivity | } while (0) |
120 | 0e0d36b4 | Avi Kivity | |
121 | 7376e582 | Avi Kivity | #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
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122 | 7376e582 | Avi Kivity | do { \
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123 | 7376e582 | Avi Kivity | MemoryListener *_listener; \ |
124 | 7376e582 | Avi Kivity | \ |
125 | 7376e582 | Avi Kivity | switch (_direction) { \
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126 | 7376e582 | Avi Kivity | case Forward: \
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127 | 7376e582 | Avi Kivity | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
128 | 975aefe0 | Avi Kivity | if (_listener->_callback \
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129 | 975aefe0 | Avi Kivity | && memory_listener_match(_listener, _section)) { \ |
130 | 7376e582 | Avi Kivity | _listener->_callback(_listener, _section, ##_args); \ |
131 | 7376e582 | Avi Kivity | } \ |
132 | 7376e582 | Avi Kivity | } \ |
133 | 7376e582 | Avi Kivity | break; \
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134 | 7376e582 | Avi Kivity | case Reverse: \
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135 | 7376e582 | Avi Kivity | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
136 | 7376e582 | Avi Kivity | memory_listeners, link) { \ |
137 | 975aefe0 | Avi Kivity | if (_listener->_callback \
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138 | 975aefe0 | Avi Kivity | && memory_listener_match(_listener, _section)) { \ |
139 | 7376e582 | Avi Kivity | _listener->_callback(_listener, _section, ##_args); \ |
140 | 7376e582 | Avi Kivity | } \ |
141 | 7376e582 | Avi Kivity | } \ |
142 | 7376e582 | Avi Kivity | break; \
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143 | 7376e582 | Avi Kivity | default: \
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144 | 7376e582 | Avi Kivity | abort(); \ |
145 | 7376e582 | Avi Kivity | } \ |
146 | 7376e582 | Avi Kivity | } while (0) |
147 | 7376e582 | Avi Kivity | |
148 | 0e0d36b4 | Avi Kivity | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
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149 | 7376e582 | Avi Kivity | MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \ |
150 | 0e0d36b4 | Avi Kivity | .mr = (fr)->mr, \ |
151 | f6790af6 | Avi Kivity | .address_space = (as), \ |
152 | 0e0d36b4 | Avi Kivity | .offset_within_region = (fr)->offset_in_region, \ |
153 | 0e0d36b4 | Avi Kivity | .size = int128_get64((fr)->addr.size), \ |
154 | 0e0d36b4 | Avi Kivity | .offset_within_address_space = int128_get64((fr)->addr.start), \ |
155 | 7a8499e8 | Avi Kivity | .readonly = (fr)->readonly, \ |
156 | 7376e582 | Avi Kivity | })) |
157 | 0e0d36b4 | Avi Kivity | |
158 | 093bc2cd | Avi Kivity | struct CoalescedMemoryRange {
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159 | 093bc2cd | Avi Kivity | AddrRange addr; |
160 | 093bc2cd | Avi Kivity | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
161 | 093bc2cd | Avi Kivity | }; |
162 | 093bc2cd | Avi Kivity | |
163 | 3e9d69e7 | Avi Kivity | struct MemoryRegionIoeventfd {
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164 | 3e9d69e7 | Avi Kivity | AddrRange addr; |
165 | 3e9d69e7 | Avi Kivity | bool match_data;
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166 | 3e9d69e7 | Avi Kivity | uint64_t data; |
167 | 753d5e14 | Paolo Bonzini | EventNotifier *e; |
168 | 3e9d69e7 | Avi Kivity | }; |
169 | 3e9d69e7 | Avi Kivity | |
170 | 3e9d69e7 | Avi Kivity | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
171 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd b) |
172 | 3e9d69e7 | Avi Kivity | { |
173 | 08dafab4 | Avi Kivity | if (int128_lt(a.addr.start, b.addr.start)) {
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174 | 3e9d69e7 | Avi Kivity | return true; |
175 | 08dafab4 | Avi Kivity | } else if (int128_gt(a.addr.start, b.addr.start)) { |
176 | 3e9d69e7 | Avi Kivity | return false; |
177 | 08dafab4 | Avi Kivity | } else if (int128_lt(a.addr.size, b.addr.size)) { |
178 | 3e9d69e7 | Avi Kivity | return true; |
179 | 08dafab4 | Avi Kivity | } else if (int128_gt(a.addr.size, b.addr.size)) { |
180 | 3e9d69e7 | Avi Kivity | return false; |
181 | 3e9d69e7 | Avi Kivity | } else if (a.match_data < b.match_data) { |
182 | 3e9d69e7 | Avi Kivity | return true; |
183 | 3e9d69e7 | Avi Kivity | } else if (a.match_data > b.match_data) { |
184 | 3e9d69e7 | Avi Kivity | return false; |
185 | 3e9d69e7 | Avi Kivity | } else if (a.match_data) { |
186 | 3e9d69e7 | Avi Kivity | if (a.data < b.data) {
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187 | 3e9d69e7 | Avi Kivity | return true; |
188 | 3e9d69e7 | Avi Kivity | } else if (a.data > b.data) { |
189 | 3e9d69e7 | Avi Kivity | return false; |
190 | 3e9d69e7 | Avi Kivity | } |
191 | 3e9d69e7 | Avi Kivity | } |
192 | 753d5e14 | Paolo Bonzini | if (a.e < b.e) {
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193 | 3e9d69e7 | Avi Kivity | return true; |
194 | 753d5e14 | Paolo Bonzini | } else if (a.e > b.e) { |
195 | 3e9d69e7 | Avi Kivity | return false; |
196 | 3e9d69e7 | Avi Kivity | } |
197 | 3e9d69e7 | Avi Kivity | return false; |
198 | 3e9d69e7 | Avi Kivity | } |
199 | 3e9d69e7 | Avi Kivity | |
200 | 3e9d69e7 | Avi Kivity | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
201 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd b) |
202 | 3e9d69e7 | Avi Kivity | { |
203 | 3e9d69e7 | Avi Kivity | return !memory_region_ioeventfd_before(a, b)
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204 | 3e9d69e7 | Avi Kivity | && !memory_region_ioeventfd_before(b, a); |
205 | 3e9d69e7 | Avi Kivity | } |
206 | 3e9d69e7 | Avi Kivity | |
207 | 093bc2cd | Avi Kivity | typedef struct FlatRange FlatRange; |
208 | 093bc2cd | Avi Kivity | typedef struct FlatView FlatView; |
209 | 093bc2cd | Avi Kivity | |
210 | 093bc2cd | Avi Kivity | /* Range of memory in the global map. Addresses are absolute. */
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211 | 093bc2cd | Avi Kivity | struct FlatRange {
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212 | 093bc2cd | Avi Kivity | MemoryRegion *mr; |
213 | a8170e5e | Avi Kivity | hwaddr offset_in_region; |
214 | 093bc2cd | Avi Kivity | AddrRange addr; |
215 | 5a583347 | Avi Kivity | uint8_t dirty_log_mask; |
216 | d0a9b5bc | Avi Kivity | bool readable;
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217 | fb1cd6f9 | Avi Kivity | bool readonly;
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218 | 093bc2cd | Avi Kivity | }; |
219 | 093bc2cd | Avi Kivity | |
220 | 093bc2cd | Avi Kivity | /* Flattened global view of current active memory hierarchy. Kept in sorted
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221 | 093bc2cd | Avi Kivity | * order.
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222 | 093bc2cd | Avi Kivity | */
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223 | 093bc2cd | Avi Kivity | struct FlatView {
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224 | 093bc2cd | Avi Kivity | FlatRange *ranges; |
225 | 093bc2cd | Avi Kivity | unsigned nr;
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226 | 093bc2cd | Avi Kivity | unsigned nr_allocated;
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227 | 093bc2cd | Avi Kivity | }; |
228 | 093bc2cd | Avi Kivity | |
229 | cc31e6e7 | Avi Kivity | typedef struct AddressSpaceOps AddressSpaceOps; |
230 | cc31e6e7 | Avi Kivity | |
231 | 093bc2cd | Avi Kivity | #define FOR_EACH_FLAT_RANGE(var, view) \
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232 | 093bc2cd | Avi Kivity | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
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233 | 093bc2cd | Avi Kivity | |
234 | 093bc2cd | Avi Kivity | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
235 | 093bc2cd | Avi Kivity | { |
236 | 093bc2cd | Avi Kivity | return a->mr == b->mr
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237 | 093bc2cd | Avi Kivity | && addrrange_equal(a->addr, b->addr) |
238 | d0a9b5bc | Avi Kivity | && a->offset_in_region == b->offset_in_region |
239 | fb1cd6f9 | Avi Kivity | && a->readable == b->readable |
240 | fb1cd6f9 | Avi Kivity | && a->readonly == b->readonly; |
241 | 093bc2cd | Avi Kivity | } |
242 | 093bc2cd | Avi Kivity | |
243 | 093bc2cd | Avi Kivity | static void flatview_init(FlatView *view) |
244 | 093bc2cd | Avi Kivity | { |
245 | 093bc2cd | Avi Kivity | view->ranges = NULL;
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246 | 093bc2cd | Avi Kivity | view->nr = 0;
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247 | 093bc2cd | Avi Kivity | view->nr_allocated = 0;
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248 | 093bc2cd | Avi Kivity | } |
249 | 093bc2cd | Avi Kivity | |
250 | 093bc2cd | Avi Kivity | /* Insert a range into a given position. Caller is responsible for maintaining
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251 | 093bc2cd | Avi Kivity | * sorting order.
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252 | 093bc2cd | Avi Kivity | */
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253 | 093bc2cd | Avi Kivity | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
254 | 093bc2cd | Avi Kivity | { |
255 | 093bc2cd | Avi Kivity | if (view->nr == view->nr_allocated) {
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256 | 093bc2cd | Avi Kivity | view->nr_allocated = MAX(2 * view->nr, 10); |
257 | 7267c094 | Anthony Liguori | view->ranges = g_realloc(view->ranges, |
258 | 093bc2cd | Avi Kivity | view->nr_allocated * sizeof(*view->ranges));
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259 | 093bc2cd | Avi Kivity | } |
260 | 093bc2cd | Avi Kivity | memmove(view->ranges + pos + 1, view->ranges + pos,
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261 | 093bc2cd | Avi Kivity | (view->nr - pos) * sizeof(FlatRange));
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262 | 093bc2cd | Avi Kivity | view->ranges[pos] = *range; |
263 | 093bc2cd | Avi Kivity | ++view->nr; |
264 | 093bc2cd | Avi Kivity | } |
265 | 093bc2cd | Avi Kivity | |
266 | 093bc2cd | Avi Kivity | static void flatview_destroy(FlatView *view) |
267 | 093bc2cd | Avi Kivity | { |
268 | 7267c094 | Anthony Liguori | g_free(view->ranges); |
269 | 093bc2cd | Avi Kivity | } |
270 | 093bc2cd | Avi Kivity | |
271 | 3d8e6bf9 | Avi Kivity | static bool can_merge(FlatRange *r1, FlatRange *r2) |
272 | 3d8e6bf9 | Avi Kivity | { |
273 | 08dafab4 | Avi Kivity | return int128_eq(addrrange_end(r1->addr), r2->addr.start)
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274 | 3d8e6bf9 | Avi Kivity | && r1->mr == r2->mr |
275 | 08dafab4 | Avi Kivity | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
276 | 08dafab4 | Avi Kivity | r1->addr.size), |
277 | 08dafab4 | Avi Kivity | int128_make64(r2->offset_in_region)) |
278 | d0a9b5bc | Avi Kivity | && r1->dirty_log_mask == r2->dirty_log_mask |
279 | fb1cd6f9 | Avi Kivity | && r1->readable == r2->readable |
280 | fb1cd6f9 | Avi Kivity | && r1->readonly == r2->readonly; |
281 | 3d8e6bf9 | Avi Kivity | } |
282 | 3d8e6bf9 | Avi Kivity | |
283 | 3d8e6bf9 | Avi Kivity | /* Attempt to simplify a view by merging ajacent ranges */
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284 | 3d8e6bf9 | Avi Kivity | static void flatview_simplify(FlatView *view) |
285 | 3d8e6bf9 | Avi Kivity | { |
286 | 3d8e6bf9 | Avi Kivity | unsigned i, j;
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287 | 3d8e6bf9 | Avi Kivity | |
288 | 3d8e6bf9 | Avi Kivity | i = 0;
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289 | 3d8e6bf9 | Avi Kivity | while (i < view->nr) {
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290 | 3d8e6bf9 | Avi Kivity | j = i + 1;
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291 | 3d8e6bf9 | Avi Kivity | while (j < view->nr
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292 | 3d8e6bf9 | Avi Kivity | && can_merge(&view->ranges[j-1], &view->ranges[j])) {
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293 | 08dafab4 | Avi Kivity | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
294 | 3d8e6bf9 | Avi Kivity | ++j; |
295 | 3d8e6bf9 | Avi Kivity | } |
296 | 3d8e6bf9 | Avi Kivity | ++i; |
297 | 3d8e6bf9 | Avi Kivity | memmove(&view->ranges[i], &view->ranges[j], |
298 | 3d8e6bf9 | Avi Kivity | (view->nr - j) * sizeof(view->ranges[j]));
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299 | 3d8e6bf9 | Avi Kivity | view->nr -= j - i; |
300 | 3d8e6bf9 | Avi Kivity | } |
301 | 3d8e6bf9 | Avi Kivity | } |
302 | 3d8e6bf9 | Avi Kivity | |
303 | 164a4dcd | Avi Kivity | static void memory_region_read_accessor(void *opaque, |
304 | a8170e5e | Avi Kivity | hwaddr addr, |
305 | 164a4dcd | Avi Kivity | uint64_t *value, |
306 | 164a4dcd | Avi Kivity | unsigned size,
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307 | 164a4dcd | Avi Kivity | unsigned shift,
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308 | 164a4dcd | Avi Kivity | uint64_t mask) |
309 | 164a4dcd | Avi Kivity | { |
310 | 164a4dcd | Avi Kivity | MemoryRegion *mr = opaque; |
311 | 164a4dcd | Avi Kivity | uint64_t tmp; |
312 | 164a4dcd | Avi Kivity | |
313 | d410515e | Jan Kiszka | if (mr->flush_coalesced_mmio) {
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314 | d410515e | Jan Kiszka | qemu_flush_coalesced_mmio_buffer(); |
315 | d410515e | Jan Kiszka | } |
316 | 164a4dcd | Avi Kivity | tmp = mr->ops->read(mr->opaque, addr, size); |
317 | 164a4dcd | Avi Kivity | *value |= (tmp & mask) << shift; |
318 | 164a4dcd | Avi Kivity | } |
319 | 164a4dcd | Avi Kivity | |
320 | 164a4dcd | Avi Kivity | static void memory_region_write_accessor(void *opaque, |
321 | a8170e5e | Avi Kivity | hwaddr addr, |
322 | 164a4dcd | Avi Kivity | uint64_t *value, |
323 | 164a4dcd | Avi Kivity | unsigned size,
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324 | 164a4dcd | Avi Kivity | unsigned shift,
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325 | 164a4dcd | Avi Kivity | uint64_t mask) |
326 | 164a4dcd | Avi Kivity | { |
327 | 164a4dcd | Avi Kivity | MemoryRegion *mr = opaque; |
328 | 164a4dcd | Avi Kivity | uint64_t tmp; |
329 | 164a4dcd | Avi Kivity | |
330 | d410515e | Jan Kiszka | if (mr->flush_coalesced_mmio) {
|
331 | d410515e | Jan Kiszka | qemu_flush_coalesced_mmio_buffer(); |
332 | d410515e | Jan Kiszka | } |
333 | 164a4dcd | Avi Kivity | tmp = (*value >> shift) & mask; |
334 | 164a4dcd | Avi Kivity | mr->ops->write(mr->opaque, addr, tmp, size); |
335 | 164a4dcd | Avi Kivity | } |
336 | 164a4dcd | Avi Kivity | |
337 | a8170e5e | Avi Kivity | static void access_with_adjusted_size(hwaddr addr, |
338 | 164a4dcd | Avi Kivity | uint64_t *value, |
339 | 164a4dcd | Avi Kivity | unsigned size,
|
340 | 164a4dcd | Avi Kivity | unsigned access_size_min,
|
341 | 164a4dcd | Avi Kivity | unsigned access_size_max,
|
342 | 164a4dcd | Avi Kivity | void (*access)(void *opaque, |
343 | a8170e5e | Avi Kivity | hwaddr addr, |
344 | 164a4dcd | Avi Kivity | uint64_t *value, |
345 | 164a4dcd | Avi Kivity | unsigned size,
|
346 | 164a4dcd | Avi Kivity | unsigned shift,
|
347 | 164a4dcd | Avi Kivity | uint64_t mask), |
348 | 164a4dcd | Avi Kivity | void *opaque)
|
349 | 164a4dcd | Avi Kivity | { |
350 | 164a4dcd | Avi Kivity | uint64_t access_mask; |
351 | 164a4dcd | Avi Kivity | unsigned access_size;
|
352 | 164a4dcd | Avi Kivity | unsigned i;
|
353 | 164a4dcd | Avi Kivity | |
354 | 164a4dcd | Avi Kivity | if (!access_size_min) {
|
355 | 164a4dcd | Avi Kivity | access_size_min = 1;
|
356 | 164a4dcd | Avi Kivity | } |
357 | 164a4dcd | Avi Kivity | if (!access_size_max) {
|
358 | 164a4dcd | Avi Kivity | access_size_max = 4;
|
359 | 164a4dcd | Avi Kivity | } |
360 | 164a4dcd | Avi Kivity | access_size = MAX(MIN(size, access_size_max), access_size_min); |
361 | 164a4dcd | Avi Kivity | access_mask = -1ULL >> (64 - access_size * 8); |
362 | 164a4dcd | Avi Kivity | for (i = 0; i < size; i += access_size) { |
363 | 164a4dcd | Avi Kivity | /* FIXME: big-endian support */
|
364 | 164a4dcd | Avi Kivity | access(opaque, addr + i, value, access_size, i * 8, access_mask);
|
365 | 164a4dcd | Avi Kivity | } |
366 | 164a4dcd | Avi Kivity | } |
367 | 164a4dcd | Avi Kivity | |
368 | 627a0e90 | Avi Kivity | static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset, |
369 | 627a0e90 | Avi Kivity | unsigned width, bool write) |
370 | 627a0e90 | Avi Kivity | { |
371 | 627a0e90 | Avi Kivity | const MemoryRegionPortio *mrp;
|
372 | 627a0e90 | Avi Kivity | |
373 | 627a0e90 | Avi Kivity | for (mrp = mr->ops->old_portio; mrp->size; ++mrp) {
|
374 | 627a0e90 | Avi Kivity | if (offset >= mrp->offset && offset < mrp->offset + mrp->len
|
375 | 627a0e90 | Avi Kivity | && width == mrp->size |
376 | 627a0e90 | Avi Kivity | && (write ? (bool)mrp->write : (bool)mrp->read)) { |
377 | 627a0e90 | Avi Kivity | return mrp;
|
378 | 627a0e90 | Avi Kivity | } |
379 | 627a0e90 | Avi Kivity | } |
380 | 627a0e90 | Avi Kivity | return NULL; |
381 | 627a0e90 | Avi Kivity | } |
382 | 627a0e90 | Avi Kivity | |
383 | 658b2224 | Avi Kivity | static void memory_region_iorange_read(IORange *iorange, |
384 | 658b2224 | Avi Kivity | uint64_t offset, |
385 | 658b2224 | Avi Kivity | unsigned width,
|
386 | 658b2224 | Avi Kivity | uint64_t *data) |
387 | 658b2224 | Avi Kivity | { |
388 | a2d33521 | Avi Kivity | MemoryRegionIORange *mrio |
389 | a2d33521 | Avi Kivity | = container_of(iorange, MemoryRegionIORange, iorange); |
390 | a2d33521 | Avi Kivity | MemoryRegion *mr = mrio->mr; |
391 | 658b2224 | Avi Kivity | |
392 | a2d33521 | Avi Kivity | offset += mrio->offset; |
393 | 627a0e90 | Avi Kivity | if (mr->ops->old_portio) {
|
394 | a2d33521 | Avi Kivity | const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset,
|
395 | a2d33521 | Avi Kivity | width, false);
|
396 | 627a0e90 | Avi Kivity | |
397 | 627a0e90 | Avi Kivity | *data = ((uint64_t)1 << (width * 8)) - 1; |
398 | 627a0e90 | Avi Kivity | if (mrp) {
|
399 | 2b50aa1f | Avi Kivity | *data = mrp->read(mr->opaque, offset); |
400 | 03808f58 | Jan Kiszka | } else if (width == 2) { |
401 | a2d33521 | Avi Kivity | mrp = find_portio(mr, offset - mrio->offset, 1, false); |
402 | 03808f58 | Jan Kiszka | assert(mrp); |
403 | 2b50aa1f | Avi Kivity | *data = mrp->read(mr->opaque, offset) | |
404 | 2b50aa1f | Avi Kivity | (mrp->read(mr->opaque, offset + 1) << 8); |
405 | 627a0e90 | Avi Kivity | } |
406 | 627a0e90 | Avi Kivity | return;
|
407 | 627a0e90 | Avi Kivity | } |
408 | 3a130f4e | Avi Kivity | *data = 0;
|
409 | 2b50aa1f | Avi Kivity | access_with_adjusted_size(offset, data, width, |
410 | 3a130f4e | Avi Kivity | mr->ops->impl.min_access_size, |
411 | 3a130f4e | Avi Kivity | mr->ops->impl.max_access_size, |
412 | 3a130f4e | Avi Kivity | memory_region_read_accessor, mr); |
413 | 658b2224 | Avi Kivity | } |
414 | 658b2224 | Avi Kivity | |
415 | 658b2224 | Avi Kivity | static void memory_region_iorange_write(IORange *iorange, |
416 | 658b2224 | Avi Kivity | uint64_t offset, |
417 | 658b2224 | Avi Kivity | unsigned width,
|
418 | 658b2224 | Avi Kivity | uint64_t data) |
419 | 658b2224 | Avi Kivity | { |
420 | a2d33521 | Avi Kivity | MemoryRegionIORange *mrio |
421 | a2d33521 | Avi Kivity | = container_of(iorange, MemoryRegionIORange, iorange); |
422 | a2d33521 | Avi Kivity | MemoryRegion *mr = mrio->mr; |
423 | 658b2224 | Avi Kivity | |
424 | a2d33521 | Avi Kivity | offset += mrio->offset; |
425 | 627a0e90 | Avi Kivity | if (mr->ops->old_portio) {
|
426 | a2d33521 | Avi Kivity | const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset,
|
427 | a2d33521 | Avi Kivity | width, true);
|
428 | 627a0e90 | Avi Kivity | |
429 | 627a0e90 | Avi Kivity | if (mrp) {
|
430 | 2b50aa1f | Avi Kivity | mrp->write(mr->opaque, offset, data); |
431 | 03808f58 | Jan Kiszka | } else if (width == 2) { |
432 | 7e2a62d8 | Jan Kiszka | mrp = find_portio(mr, offset - mrio->offset, 1, true); |
433 | 03808f58 | Jan Kiszka | assert(mrp); |
434 | 2b50aa1f | Avi Kivity | mrp->write(mr->opaque, offset, data & 0xff);
|
435 | 2b50aa1f | Avi Kivity | mrp->write(mr->opaque, offset + 1, data >> 8); |
436 | 627a0e90 | Avi Kivity | } |
437 | 627a0e90 | Avi Kivity | return;
|
438 | 627a0e90 | Avi Kivity | } |
439 | 2b50aa1f | Avi Kivity | access_with_adjusted_size(offset, &data, width, |
440 | 3a130f4e | Avi Kivity | mr->ops->impl.min_access_size, |
441 | 3a130f4e | Avi Kivity | mr->ops->impl.max_access_size, |
442 | 3a130f4e | Avi Kivity | memory_region_write_accessor, mr); |
443 | 658b2224 | Avi Kivity | } |
444 | 658b2224 | Avi Kivity | |
445 | a2d33521 | Avi Kivity | static void memory_region_iorange_destructor(IORange *iorange) |
446 | a2d33521 | Avi Kivity | { |
447 | a2d33521 | Avi Kivity | g_free(container_of(iorange, MemoryRegionIORange, iorange)); |
448 | a2d33521 | Avi Kivity | } |
449 | a2d33521 | Avi Kivity | |
450 | 93632747 | Avi Kivity | const IORangeOps memory_region_iorange_ops = {
|
451 | 658b2224 | Avi Kivity | .read = memory_region_iorange_read, |
452 | 658b2224 | Avi Kivity | .write = memory_region_iorange_write, |
453 | a2d33521 | Avi Kivity | .destructor = memory_region_iorange_destructor, |
454 | 658b2224 | Avi Kivity | }; |
455 | 658b2224 | Avi Kivity | |
456 | e2177955 | Avi Kivity | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr)
|
457 | e2177955 | Avi Kivity | { |
458 | 0d673e36 | Avi Kivity | AddressSpace *as; |
459 | 0d673e36 | Avi Kivity | |
460 | e2177955 | Avi Kivity | while (mr->parent) {
|
461 | e2177955 | Avi Kivity | mr = mr->parent; |
462 | e2177955 | Avi Kivity | } |
463 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
464 | 0d673e36 | Avi Kivity | if (mr == as->root) {
|
465 | 0d673e36 | Avi Kivity | return as;
|
466 | 0d673e36 | Avi Kivity | } |
467 | e2177955 | Avi Kivity | } |
468 | e2177955 | Avi Kivity | abort(); |
469 | e2177955 | Avi Kivity | } |
470 | e2177955 | Avi Kivity | |
471 | 093bc2cd | Avi Kivity | /* Render a memory region into the global view. Ranges in @view obscure
|
472 | 093bc2cd | Avi Kivity | * ranges in @mr.
|
473 | 093bc2cd | Avi Kivity | */
|
474 | 093bc2cd | Avi Kivity | static void render_memory_region(FlatView *view, |
475 | 093bc2cd | Avi Kivity | MemoryRegion *mr, |
476 | 08dafab4 | Avi Kivity | Int128 base, |
477 | fb1cd6f9 | Avi Kivity | AddrRange clip, |
478 | fb1cd6f9 | Avi Kivity | bool readonly)
|
479 | 093bc2cd | Avi Kivity | { |
480 | 093bc2cd | Avi Kivity | MemoryRegion *subregion; |
481 | 093bc2cd | Avi Kivity | unsigned i;
|
482 | a8170e5e | Avi Kivity | hwaddr offset_in_region; |
483 | 08dafab4 | Avi Kivity | Int128 remain; |
484 | 08dafab4 | Avi Kivity | Int128 now; |
485 | 093bc2cd | Avi Kivity | FlatRange fr; |
486 | 093bc2cd | Avi Kivity | AddrRange tmp; |
487 | 093bc2cd | Avi Kivity | |
488 | 6bba19ba | Avi Kivity | if (!mr->enabled) {
|
489 | 6bba19ba | Avi Kivity | return;
|
490 | 6bba19ba | Avi Kivity | } |
491 | 6bba19ba | Avi Kivity | |
492 | 08dafab4 | Avi Kivity | int128_addto(&base, int128_make64(mr->addr)); |
493 | fb1cd6f9 | Avi Kivity | readonly |= mr->readonly; |
494 | 093bc2cd | Avi Kivity | |
495 | 093bc2cd | Avi Kivity | tmp = addrrange_make(base, mr->size); |
496 | 093bc2cd | Avi Kivity | |
497 | 093bc2cd | Avi Kivity | if (!addrrange_intersects(tmp, clip)) {
|
498 | 093bc2cd | Avi Kivity | return;
|
499 | 093bc2cd | Avi Kivity | } |
500 | 093bc2cd | Avi Kivity | |
501 | 093bc2cd | Avi Kivity | clip = addrrange_intersection(tmp, clip); |
502 | 093bc2cd | Avi Kivity | |
503 | 093bc2cd | Avi Kivity | if (mr->alias) {
|
504 | 08dafab4 | Avi Kivity | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
505 | 08dafab4 | Avi Kivity | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
506 | fb1cd6f9 | Avi Kivity | render_memory_region(view, mr->alias, base, clip, readonly); |
507 | 093bc2cd | Avi Kivity | return;
|
508 | 093bc2cd | Avi Kivity | } |
509 | 093bc2cd | Avi Kivity | |
510 | 093bc2cd | Avi Kivity | /* Render subregions in priority order. */
|
511 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
512 | fb1cd6f9 | Avi Kivity | render_memory_region(view, subregion, base, clip, readonly); |
513 | 093bc2cd | Avi Kivity | } |
514 | 093bc2cd | Avi Kivity | |
515 | 14a3c10a | Avi Kivity | if (!mr->terminates) {
|
516 | 093bc2cd | Avi Kivity | return;
|
517 | 093bc2cd | Avi Kivity | } |
518 | 093bc2cd | Avi Kivity | |
519 | 08dafab4 | Avi Kivity | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
520 | 093bc2cd | Avi Kivity | base = clip.start; |
521 | 093bc2cd | Avi Kivity | remain = clip.size; |
522 | 093bc2cd | Avi Kivity | |
523 | 093bc2cd | Avi Kivity | /* Render the region itself into any gaps left by the current view. */
|
524 | 08dafab4 | Avi Kivity | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
525 | 08dafab4 | Avi Kivity | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) {
|
526 | 093bc2cd | Avi Kivity | continue;
|
527 | 093bc2cd | Avi Kivity | } |
528 | 08dafab4 | Avi Kivity | if (int128_lt(base, view->ranges[i].addr.start)) {
|
529 | 08dafab4 | Avi Kivity | now = int128_min(remain, |
530 | 08dafab4 | Avi Kivity | int128_sub(view->ranges[i].addr.start, base)); |
531 | 093bc2cd | Avi Kivity | fr.mr = mr; |
532 | 093bc2cd | Avi Kivity | fr.offset_in_region = offset_in_region; |
533 | 093bc2cd | Avi Kivity | fr.addr = addrrange_make(base, now); |
534 | 5a583347 | Avi Kivity | fr.dirty_log_mask = mr->dirty_log_mask; |
535 | d0a9b5bc | Avi Kivity | fr.readable = mr->readable; |
536 | fb1cd6f9 | Avi Kivity | fr.readonly = readonly; |
537 | 093bc2cd | Avi Kivity | flatview_insert(view, i, &fr); |
538 | 093bc2cd | Avi Kivity | ++i; |
539 | 08dafab4 | Avi Kivity | int128_addto(&base, now); |
540 | 08dafab4 | Avi Kivity | offset_in_region += int128_get64(now); |
541 | 08dafab4 | Avi Kivity | int128_subfrom(&remain, now); |
542 | 093bc2cd | Avi Kivity | } |
543 | d26a8cae | Avi Kivity | now = int128_sub(int128_min(int128_add(base, remain), |
544 | d26a8cae | Avi Kivity | addrrange_end(view->ranges[i].addr)), |
545 | d26a8cae | Avi Kivity | base); |
546 | d26a8cae | Avi Kivity | int128_addto(&base, now); |
547 | d26a8cae | Avi Kivity | offset_in_region += int128_get64(now); |
548 | d26a8cae | Avi Kivity | int128_subfrom(&remain, now); |
549 | 093bc2cd | Avi Kivity | } |
550 | 08dafab4 | Avi Kivity | if (int128_nz(remain)) {
|
551 | 093bc2cd | Avi Kivity | fr.mr = mr; |
552 | 093bc2cd | Avi Kivity | fr.offset_in_region = offset_in_region; |
553 | 093bc2cd | Avi Kivity | fr.addr = addrrange_make(base, remain); |
554 | 5a583347 | Avi Kivity | fr.dirty_log_mask = mr->dirty_log_mask; |
555 | d0a9b5bc | Avi Kivity | fr.readable = mr->readable; |
556 | fb1cd6f9 | Avi Kivity | fr.readonly = readonly; |
557 | 093bc2cd | Avi Kivity | flatview_insert(view, i, &fr); |
558 | 093bc2cd | Avi Kivity | } |
559 | 093bc2cd | Avi Kivity | } |
560 | 093bc2cd | Avi Kivity | |
561 | 093bc2cd | Avi Kivity | /* Render a memory topology into a list of disjoint absolute ranges. */
|
562 | 093bc2cd | Avi Kivity | static FlatView generate_memory_topology(MemoryRegion *mr)
|
563 | 093bc2cd | Avi Kivity | { |
564 | 093bc2cd | Avi Kivity | FlatView view; |
565 | 093bc2cd | Avi Kivity | |
566 | 093bc2cd | Avi Kivity | flatview_init(&view); |
567 | 093bc2cd | Avi Kivity | |
568 | 83f3c251 | Avi Kivity | if (mr) {
|
569 | 83f3c251 | Avi Kivity | render_memory_region(&view, mr, int128_zero(), |
570 | 83f3c251 | Avi Kivity | addrrange_make(int128_zero(), int128_2_64()), false);
|
571 | 83f3c251 | Avi Kivity | } |
572 | 3d8e6bf9 | Avi Kivity | flatview_simplify(&view); |
573 | 093bc2cd | Avi Kivity | |
574 | 093bc2cd | Avi Kivity | return view;
|
575 | 093bc2cd | Avi Kivity | } |
576 | 093bc2cd | Avi Kivity | |
577 | 3e9d69e7 | Avi Kivity | static void address_space_add_del_ioeventfds(AddressSpace *as, |
578 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *fds_new, |
579 | 3e9d69e7 | Avi Kivity | unsigned fds_new_nb,
|
580 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *fds_old, |
581 | 3e9d69e7 | Avi Kivity | unsigned fds_old_nb)
|
582 | 3e9d69e7 | Avi Kivity | { |
583 | 3e9d69e7 | Avi Kivity | unsigned iold, inew;
|
584 | 80a1ea37 | Avi Kivity | MemoryRegionIoeventfd *fd; |
585 | 80a1ea37 | Avi Kivity | MemoryRegionSection section; |
586 | 3e9d69e7 | Avi Kivity | |
587 | 3e9d69e7 | Avi Kivity | /* Generate a symmetric difference of the old and new fd sets, adding
|
588 | 3e9d69e7 | Avi Kivity | * and deleting as necessary.
|
589 | 3e9d69e7 | Avi Kivity | */
|
590 | 3e9d69e7 | Avi Kivity | |
591 | 3e9d69e7 | Avi Kivity | iold = inew = 0;
|
592 | 3e9d69e7 | Avi Kivity | while (iold < fds_old_nb || inew < fds_new_nb) {
|
593 | 3e9d69e7 | Avi Kivity | if (iold < fds_old_nb
|
594 | 3e9d69e7 | Avi Kivity | && (inew == fds_new_nb |
595 | 3e9d69e7 | Avi Kivity | || memory_region_ioeventfd_before(fds_old[iold], |
596 | 3e9d69e7 | Avi Kivity | fds_new[inew]))) { |
597 | 80a1ea37 | Avi Kivity | fd = &fds_old[iold]; |
598 | 80a1ea37 | Avi Kivity | section = (MemoryRegionSection) { |
599 | f6790af6 | Avi Kivity | .address_space = as, |
600 | 80a1ea37 | Avi Kivity | .offset_within_address_space = int128_get64(fd->addr.start), |
601 | 80a1ea37 | Avi Kivity | .size = int128_get64(fd->addr.size), |
602 | 80a1ea37 | Avi Kivity | }; |
603 | 80a1ea37 | Avi Kivity | MEMORY_LISTENER_CALL(eventfd_del, Forward, §ion, |
604 | 753d5e14 | Paolo Bonzini | fd->match_data, fd->data, fd->e); |
605 | 3e9d69e7 | Avi Kivity | ++iold; |
606 | 3e9d69e7 | Avi Kivity | } else if (inew < fds_new_nb |
607 | 3e9d69e7 | Avi Kivity | && (iold == fds_old_nb |
608 | 3e9d69e7 | Avi Kivity | || memory_region_ioeventfd_before(fds_new[inew], |
609 | 3e9d69e7 | Avi Kivity | fds_old[iold]))) { |
610 | 80a1ea37 | Avi Kivity | fd = &fds_new[inew]; |
611 | 80a1ea37 | Avi Kivity | section = (MemoryRegionSection) { |
612 | f6790af6 | Avi Kivity | .address_space = as, |
613 | 80a1ea37 | Avi Kivity | .offset_within_address_space = int128_get64(fd->addr.start), |
614 | 80a1ea37 | Avi Kivity | .size = int128_get64(fd->addr.size), |
615 | 80a1ea37 | Avi Kivity | }; |
616 | 80a1ea37 | Avi Kivity | MEMORY_LISTENER_CALL(eventfd_add, Reverse, §ion, |
617 | 753d5e14 | Paolo Bonzini | fd->match_data, fd->data, fd->e); |
618 | 3e9d69e7 | Avi Kivity | ++inew; |
619 | 3e9d69e7 | Avi Kivity | } else {
|
620 | 3e9d69e7 | Avi Kivity | ++iold; |
621 | 3e9d69e7 | Avi Kivity | ++inew; |
622 | 3e9d69e7 | Avi Kivity | } |
623 | 3e9d69e7 | Avi Kivity | } |
624 | 3e9d69e7 | Avi Kivity | } |
625 | 3e9d69e7 | Avi Kivity | |
626 | 3e9d69e7 | Avi Kivity | static void address_space_update_ioeventfds(AddressSpace *as) |
627 | 3e9d69e7 | Avi Kivity | { |
628 | 3e9d69e7 | Avi Kivity | FlatRange *fr; |
629 | 3e9d69e7 | Avi Kivity | unsigned ioeventfd_nb = 0; |
630 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd *ioeventfds = NULL;
|
631 | 3e9d69e7 | Avi Kivity | AddrRange tmp; |
632 | 3e9d69e7 | Avi Kivity | unsigned i;
|
633 | 3e9d69e7 | Avi Kivity | |
634 | 8786db7c | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
635 | 3e9d69e7 | Avi Kivity | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
636 | 3e9d69e7 | Avi Kivity | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
637 | 08dafab4 | Avi Kivity | int128_sub(fr->addr.start, |
638 | 08dafab4 | Avi Kivity | int128_make64(fr->offset_in_region))); |
639 | 3e9d69e7 | Avi Kivity | if (addrrange_intersects(fr->addr, tmp)) {
|
640 | 3e9d69e7 | Avi Kivity | ++ioeventfd_nb; |
641 | 7267c094 | Anthony Liguori | ioeventfds = g_realloc(ioeventfds, |
642 | 3e9d69e7 | Avi Kivity | ioeventfd_nb * sizeof(*ioeventfds));
|
643 | 3e9d69e7 | Avi Kivity | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i];
|
644 | 3e9d69e7 | Avi Kivity | ioeventfds[ioeventfd_nb-1].addr = tmp;
|
645 | 3e9d69e7 | Avi Kivity | } |
646 | 3e9d69e7 | Avi Kivity | } |
647 | 3e9d69e7 | Avi Kivity | } |
648 | 3e9d69e7 | Avi Kivity | |
649 | 3e9d69e7 | Avi Kivity | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
650 | 3e9d69e7 | Avi Kivity | as->ioeventfds, as->ioeventfd_nb); |
651 | 3e9d69e7 | Avi Kivity | |
652 | 7267c094 | Anthony Liguori | g_free(as->ioeventfds); |
653 | 3e9d69e7 | Avi Kivity | as->ioeventfds = ioeventfds; |
654 | 3e9d69e7 | Avi Kivity | as->ioeventfd_nb = ioeventfd_nb; |
655 | 3e9d69e7 | Avi Kivity | } |
656 | 3e9d69e7 | Avi Kivity | |
657 | b8af1afb | Avi Kivity | static void address_space_update_topology_pass(AddressSpace *as, |
658 | b8af1afb | Avi Kivity | FlatView old_view, |
659 | b8af1afb | Avi Kivity | FlatView new_view, |
660 | b8af1afb | Avi Kivity | bool adding)
|
661 | 093bc2cd | Avi Kivity | { |
662 | 093bc2cd | Avi Kivity | unsigned iold, inew;
|
663 | 093bc2cd | Avi Kivity | FlatRange *frold, *frnew; |
664 | 093bc2cd | Avi Kivity | |
665 | 093bc2cd | Avi Kivity | /* Generate a symmetric difference of the old and new memory maps.
|
666 | 093bc2cd | Avi Kivity | * Kill ranges in the old map, and instantiate ranges in the new map.
|
667 | 093bc2cd | Avi Kivity | */
|
668 | 093bc2cd | Avi Kivity | iold = inew = 0;
|
669 | 093bc2cd | Avi Kivity | while (iold < old_view.nr || inew < new_view.nr) {
|
670 | 093bc2cd | Avi Kivity | if (iold < old_view.nr) {
|
671 | 093bc2cd | Avi Kivity | frold = &old_view.ranges[iold]; |
672 | 093bc2cd | Avi Kivity | } else {
|
673 | 093bc2cd | Avi Kivity | frold = NULL;
|
674 | 093bc2cd | Avi Kivity | } |
675 | 093bc2cd | Avi Kivity | if (inew < new_view.nr) {
|
676 | 093bc2cd | Avi Kivity | frnew = &new_view.ranges[inew]; |
677 | 093bc2cd | Avi Kivity | } else {
|
678 | 093bc2cd | Avi Kivity | frnew = NULL;
|
679 | 093bc2cd | Avi Kivity | } |
680 | 093bc2cd | Avi Kivity | |
681 | 093bc2cd | Avi Kivity | if (frold
|
682 | 093bc2cd | Avi Kivity | && (!frnew |
683 | 08dafab4 | Avi Kivity | || int128_lt(frold->addr.start, frnew->addr.start) |
684 | 08dafab4 | Avi Kivity | || (int128_eq(frold->addr.start, frnew->addr.start) |
685 | 093bc2cd | Avi Kivity | && !flatrange_equal(frold, frnew)))) { |
686 | 093bc2cd | Avi Kivity | /* In old, but (not in new, or in new but attributes changed). */
|
687 | 093bc2cd | Avi Kivity | |
688 | b8af1afb | Avi Kivity | if (!adding) {
|
689 | 72e22d2f | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
690 | b8af1afb | Avi Kivity | } |
691 | b8af1afb | Avi Kivity | |
692 | 093bc2cd | Avi Kivity | ++iold; |
693 | 093bc2cd | Avi Kivity | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
694 | 093bc2cd | Avi Kivity | /* In both (logging may have changed) */
|
695 | 093bc2cd | Avi Kivity | |
696 | b8af1afb | Avi Kivity | if (adding) {
|
697 | 50c1e149 | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
698 | b8af1afb | Avi Kivity | if (frold->dirty_log_mask && !frnew->dirty_log_mask) {
|
699 | 72e22d2f | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop); |
700 | b8af1afb | Avi Kivity | } else if (frnew->dirty_log_mask && !frold->dirty_log_mask) { |
701 | 72e22d2f | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start); |
702 | b8af1afb | Avi Kivity | } |
703 | 5a583347 | Avi Kivity | } |
704 | 5a583347 | Avi Kivity | |
705 | 093bc2cd | Avi Kivity | ++iold; |
706 | 093bc2cd | Avi Kivity | ++inew; |
707 | 093bc2cd | Avi Kivity | } else {
|
708 | 093bc2cd | Avi Kivity | /* In new */
|
709 | 093bc2cd | Avi Kivity | |
710 | b8af1afb | Avi Kivity | if (adding) {
|
711 | 72e22d2f | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
712 | b8af1afb | Avi Kivity | } |
713 | b8af1afb | Avi Kivity | |
714 | 093bc2cd | Avi Kivity | ++inew; |
715 | 093bc2cd | Avi Kivity | } |
716 | 093bc2cd | Avi Kivity | } |
717 | b8af1afb | Avi Kivity | } |
718 | b8af1afb | Avi Kivity | |
719 | b8af1afb | Avi Kivity | |
720 | b8af1afb | Avi Kivity | static void address_space_update_topology(AddressSpace *as) |
721 | b8af1afb | Avi Kivity | { |
722 | 8786db7c | Avi Kivity | FlatView old_view = *as->current_map; |
723 | b8af1afb | Avi Kivity | FlatView new_view = generate_memory_topology(as->root); |
724 | b8af1afb | Avi Kivity | |
725 | b8af1afb | Avi Kivity | address_space_update_topology_pass(as, old_view, new_view, false);
|
726 | b8af1afb | Avi Kivity | address_space_update_topology_pass(as, old_view, new_view, true);
|
727 | b8af1afb | Avi Kivity | |
728 | 8786db7c | Avi Kivity | *as->current_map = new_view; |
729 | 093bc2cd | Avi Kivity | flatview_destroy(&old_view); |
730 | 3e9d69e7 | Avi Kivity | address_space_update_ioeventfds(as); |
731 | 093bc2cd | Avi Kivity | } |
732 | 093bc2cd | Avi Kivity | |
733 | 4ef4db86 | Avi Kivity | void memory_region_transaction_begin(void) |
734 | 4ef4db86 | Avi Kivity | { |
735 | bb880ded | Jan Kiszka | qemu_flush_coalesced_mmio_buffer(); |
736 | 4ef4db86 | Avi Kivity | ++memory_region_transaction_depth; |
737 | 4ef4db86 | Avi Kivity | } |
738 | 4ef4db86 | Avi Kivity | |
739 | 4ef4db86 | Avi Kivity | void memory_region_transaction_commit(void) |
740 | 4ef4db86 | Avi Kivity | { |
741 | 0d673e36 | Avi Kivity | AddressSpace *as; |
742 | 0d673e36 | Avi Kivity | |
743 | 4ef4db86 | Avi Kivity | assert(memory_region_transaction_depth); |
744 | 4ef4db86 | Avi Kivity | --memory_region_transaction_depth; |
745 | 22bde714 | Jan Kiszka | if (!memory_region_transaction_depth && memory_region_update_pending) {
|
746 | 22bde714 | Jan Kiszka | memory_region_update_pending = false;
|
747 | 02e2b95f | Jan Kiszka | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
748 | 02e2b95f | Jan Kiszka | |
749 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
750 | 0d673e36 | Avi Kivity | address_space_update_topology(as); |
751 | 02e2b95f | Jan Kiszka | } |
752 | 02e2b95f | Jan Kiszka | |
753 | 02e2b95f | Jan Kiszka | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
754 | e87c099f | Avi Kivity | } |
755 | 4ef4db86 | Avi Kivity | } |
756 | 4ef4db86 | Avi Kivity | |
757 | 545e92e0 | Avi Kivity | static void memory_region_destructor_none(MemoryRegion *mr) |
758 | 545e92e0 | Avi Kivity | { |
759 | 545e92e0 | Avi Kivity | } |
760 | 545e92e0 | Avi Kivity | |
761 | 545e92e0 | Avi Kivity | static void memory_region_destructor_ram(MemoryRegion *mr) |
762 | 545e92e0 | Avi Kivity | { |
763 | 545e92e0 | Avi Kivity | qemu_ram_free(mr->ram_addr); |
764 | 545e92e0 | Avi Kivity | } |
765 | 545e92e0 | Avi Kivity | |
766 | 545e92e0 | Avi Kivity | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
767 | 545e92e0 | Avi Kivity | { |
768 | 545e92e0 | Avi Kivity | qemu_ram_free_from_ptr(mr->ram_addr); |
769 | 545e92e0 | Avi Kivity | } |
770 | 545e92e0 | Avi Kivity | |
771 | 545e92e0 | Avi Kivity | static void memory_region_destructor_iomem(MemoryRegion *mr) |
772 | 545e92e0 | Avi Kivity | { |
773 | 545e92e0 | Avi Kivity | } |
774 | 545e92e0 | Avi Kivity | |
775 | d0a9b5bc | Avi Kivity | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
776 | d0a9b5bc | Avi Kivity | { |
777 | d0a9b5bc | Avi Kivity | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
778 | d0a9b5bc | Avi Kivity | } |
779 | d0a9b5bc | Avi Kivity | |
780 | be675c97 | Avi Kivity | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
781 | be675c97 | Avi Kivity | { |
782 | 2c3579ab | Andreas Fรคrber | #ifdef TARGET_WORDS_BIGENDIAN
|
783 | be675c97 | Avi Kivity | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN;
|
784 | be675c97 | Avi Kivity | #else
|
785 | be675c97 | Avi Kivity | return mr->ops->endianness == DEVICE_BIG_ENDIAN;
|
786 | be675c97 | Avi Kivity | #endif
|
787 | be675c97 | Avi Kivity | } |
788 | be675c97 | Avi Kivity | |
789 | 093bc2cd | Avi Kivity | void memory_region_init(MemoryRegion *mr,
|
790 | 093bc2cd | Avi Kivity | const char *name, |
791 | 093bc2cd | Avi Kivity | uint64_t size) |
792 | 093bc2cd | Avi Kivity | { |
793 | 093bc2cd | Avi Kivity | mr->ops = NULL;
|
794 | 093bc2cd | Avi Kivity | mr->parent = NULL;
|
795 | 08dafab4 | Avi Kivity | mr->size = int128_make64(size); |
796 | 08dafab4 | Avi Kivity | if (size == UINT64_MAX) {
|
797 | 08dafab4 | Avi Kivity | mr->size = int128_2_64(); |
798 | 08dafab4 | Avi Kivity | } |
799 | 093bc2cd | Avi Kivity | mr->addr = 0;
|
800 | b3b00c78 | Avi Kivity | mr->subpage = false;
|
801 | 6bba19ba | Avi Kivity | mr->enabled = true;
|
802 | 14a3c10a | Avi Kivity | mr->terminates = false;
|
803 | 8ea9252a | Avi Kivity | mr->ram = false;
|
804 | d0a9b5bc | Avi Kivity | mr->readable = true;
|
805 | fb1cd6f9 | Avi Kivity | mr->readonly = false;
|
806 | 75c578dc | Avi Kivity | mr->rom_device = false;
|
807 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_none; |
808 | 093bc2cd | Avi Kivity | mr->priority = 0;
|
809 | 093bc2cd | Avi Kivity | mr->may_overlap = false;
|
810 | 093bc2cd | Avi Kivity | mr->alias = NULL;
|
811 | 093bc2cd | Avi Kivity | QTAILQ_INIT(&mr->subregions); |
812 | 093bc2cd | Avi Kivity | memset(&mr->subregions_link, 0, sizeof mr->subregions_link); |
813 | 093bc2cd | Avi Kivity | QTAILQ_INIT(&mr->coalesced); |
814 | 7267c094 | Anthony Liguori | mr->name = g_strdup(name); |
815 | 5a583347 | Avi Kivity | mr->dirty_log_mask = 0;
|
816 | 3e9d69e7 | Avi Kivity | mr->ioeventfd_nb = 0;
|
817 | 3e9d69e7 | Avi Kivity | mr->ioeventfds = NULL;
|
818 | d410515e | Jan Kiszka | mr->flush_coalesced_mmio = false;
|
819 | 093bc2cd | Avi Kivity | } |
820 | 093bc2cd | Avi Kivity | |
821 | 093bc2cd | Avi Kivity | static bool memory_region_access_valid(MemoryRegion *mr, |
822 | a8170e5e | Avi Kivity | hwaddr addr, |
823 | 897fa7cf | Avi Kivity | unsigned size,
|
824 | 897fa7cf | Avi Kivity | bool is_write)
|
825 | 093bc2cd | Avi Kivity | { |
826 | 897fa7cf | Avi Kivity | if (mr->ops->valid.accepts
|
827 | 897fa7cf | Avi Kivity | && !mr->ops->valid.accepts(mr->opaque, addr, size, is_write)) { |
828 | 897fa7cf | Avi Kivity | return false; |
829 | 897fa7cf | Avi Kivity | } |
830 | 897fa7cf | Avi Kivity | |
831 | 093bc2cd | Avi Kivity | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
832 | 093bc2cd | Avi Kivity | return false; |
833 | 093bc2cd | Avi Kivity | } |
834 | 093bc2cd | Avi Kivity | |
835 | 093bc2cd | Avi Kivity | /* Treat zero as compatibility all valid */
|
836 | 093bc2cd | Avi Kivity | if (!mr->ops->valid.max_access_size) {
|
837 | 093bc2cd | Avi Kivity | return true; |
838 | 093bc2cd | Avi Kivity | } |
839 | 093bc2cd | Avi Kivity | |
840 | 093bc2cd | Avi Kivity | if (size > mr->ops->valid.max_access_size
|
841 | 093bc2cd | Avi Kivity | || size < mr->ops->valid.min_access_size) { |
842 | 093bc2cd | Avi Kivity | return false; |
843 | 093bc2cd | Avi Kivity | } |
844 | 093bc2cd | Avi Kivity | return true; |
845 | 093bc2cd | Avi Kivity | } |
846 | 093bc2cd | Avi Kivity | |
847 | a621f38d | Avi Kivity | static uint64_t memory_region_dispatch_read1(MemoryRegion *mr,
|
848 | a8170e5e | Avi Kivity | hwaddr addr, |
849 | a621f38d | Avi Kivity | unsigned size)
|
850 | 093bc2cd | Avi Kivity | { |
851 | 164a4dcd | Avi Kivity | uint64_t data = 0;
|
852 | 093bc2cd | Avi Kivity | |
853 | 897fa7cf | Avi Kivity | if (!memory_region_access_valid(mr, addr, size, false)) { |
854 | 093bc2cd | Avi Kivity | return -1U; /* FIXME: better signalling */ |
855 | 093bc2cd | Avi Kivity | } |
856 | 093bc2cd | Avi Kivity | |
857 | 74901c3b | Avi Kivity | if (!mr->ops->read) {
|
858 | 5bbf90be | Richard Henderson | return mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr);
|
859 | 74901c3b | Avi Kivity | } |
860 | 74901c3b | Avi Kivity | |
861 | 093bc2cd | Avi Kivity | /* FIXME: support unaligned access */
|
862 | 2b50aa1f | Avi Kivity | access_with_adjusted_size(addr, &data, size, |
863 | 164a4dcd | Avi Kivity | mr->ops->impl.min_access_size, |
864 | 164a4dcd | Avi Kivity | mr->ops->impl.max_access_size, |
865 | 164a4dcd | Avi Kivity | memory_region_read_accessor, mr); |
866 | 093bc2cd | Avi Kivity | |
867 | 093bc2cd | Avi Kivity | return data;
|
868 | 093bc2cd | Avi Kivity | } |
869 | 093bc2cd | Avi Kivity | |
870 | a621f38d | Avi Kivity | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
871 | 093bc2cd | Avi Kivity | { |
872 | a621f38d | Avi Kivity | if (memory_region_wrong_endianness(mr)) {
|
873 | a621f38d | Avi Kivity | switch (size) {
|
874 | a621f38d | Avi Kivity | case 1: |
875 | a621f38d | Avi Kivity | break;
|
876 | a621f38d | Avi Kivity | case 2: |
877 | a621f38d | Avi Kivity | *data = bswap16(*data); |
878 | a621f38d | Avi Kivity | break;
|
879 | a621f38d | Avi Kivity | case 4: |
880 | a621f38d | Avi Kivity | *data = bswap32(*data); |
881 | 1470a0cd | Andreas Fรคrber | break;
|
882 | a621f38d | Avi Kivity | default:
|
883 | a621f38d | Avi Kivity | abort(); |
884 | a621f38d | Avi Kivity | } |
885 | a621f38d | Avi Kivity | } |
886 | a621f38d | Avi Kivity | } |
887 | a621f38d | Avi Kivity | |
888 | a621f38d | Avi Kivity | static uint64_t memory_region_dispatch_read(MemoryRegion *mr,
|
889 | a8170e5e | Avi Kivity | hwaddr addr, |
890 | a621f38d | Avi Kivity | unsigned size)
|
891 | a621f38d | Avi Kivity | { |
892 | a621f38d | Avi Kivity | uint64_t ret; |
893 | a621f38d | Avi Kivity | |
894 | a621f38d | Avi Kivity | ret = memory_region_dispatch_read1(mr, addr, size); |
895 | a621f38d | Avi Kivity | adjust_endianness(mr, &ret, size); |
896 | a621f38d | Avi Kivity | return ret;
|
897 | a621f38d | Avi Kivity | } |
898 | 093bc2cd | Avi Kivity | |
899 | a621f38d | Avi Kivity | static void memory_region_dispatch_write(MemoryRegion *mr, |
900 | a8170e5e | Avi Kivity | hwaddr addr, |
901 | a621f38d | Avi Kivity | uint64_t data, |
902 | a621f38d | Avi Kivity | unsigned size)
|
903 | a621f38d | Avi Kivity | { |
904 | 897fa7cf | Avi Kivity | if (!memory_region_access_valid(mr, addr, size, true)) { |
905 | 093bc2cd | Avi Kivity | return; /* FIXME: better signalling */ |
906 | 093bc2cd | Avi Kivity | } |
907 | 093bc2cd | Avi Kivity | |
908 | a621f38d | Avi Kivity | adjust_endianness(mr, &data, size); |
909 | a621f38d | Avi Kivity | |
910 | 74901c3b | Avi Kivity | if (!mr->ops->write) {
|
911 | 5bbf90be | Richard Henderson | mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, data); |
912 | 74901c3b | Avi Kivity | return;
|
913 | 74901c3b | Avi Kivity | } |
914 | 74901c3b | Avi Kivity | |
915 | 093bc2cd | Avi Kivity | /* FIXME: support unaligned access */
|
916 | 2b50aa1f | Avi Kivity | access_with_adjusted_size(addr, &data, size, |
917 | 164a4dcd | Avi Kivity | mr->ops->impl.min_access_size, |
918 | 164a4dcd | Avi Kivity | mr->ops->impl.max_access_size, |
919 | 164a4dcd | Avi Kivity | memory_region_write_accessor, mr); |
920 | 093bc2cd | Avi Kivity | } |
921 | 093bc2cd | Avi Kivity | |
922 | 093bc2cd | Avi Kivity | void memory_region_init_io(MemoryRegion *mr,
|
923 | 093bc2cd | Avi Kivity | const MemoryRegionOps *ops,
|
924 | 093bc2cd | Avi Kivity | void *opaque,
|
925 | 093bc2cd | Avi Kivity | const char *name, |
926 | 093bc2cd | Avi Kivity | uint64_t size) |
927 | 093bc2cd | Avi Kivity | { |
928 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
929 | 093bc2cd | Avi Kivity | mr->ops = ops; |
930 | 093bc2cd | Avi Kivity | mr->opaque = opaque; |
931 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
932 | 26a83ad0 | Avi Kivity | mr->destructor = memory_region_destructor_iomem; |
933 | 97161e17 | Avi Kivity | mr->ram_addr = ~(ram_addr_t)0;
|
934 | 093bc2cd | Avi Kivity | } |
935 | 093bc2cd | Avi Kivity | |
936 | 093bc2cd | Avi Kivity | void memory_region_init_ram(MemoryRegion *mr,
|
937 | 093bc2cd | Avi Kivity | const char *name, |
938 | 093bc2cd | Avi Kivity | uint64_t size) |
939 | 093bc2cd | Avi Kivity | { |
940 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
941 | 8ea9252a | Avi Kivity | mr->ram = true;
|
942 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
943 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_ram; |
944 | c5705a77 | Avi Kivity | mr->ram_addr = qemu_ram_alloc(size, mr); |
945 | 093bc2cd | Avi Kivity | } |
946 | 093bc2cd | Avi Kivity | |
947 | 093bc2cd | Avi Kivity | void memory_region_init_ram_ptr(MemoryRegion *mr,
|
948 | 093bc2cd | Avi Kivity | const char *name, |
949 | 093bc2cd | Avi Kivity | uint64_t size, |
950 | 093bc2cd | Avi Kivity | void *ptr)
|
951 | 093bc2cd | Avi Kivity | { |
952 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
953 | 8ea9252a | Avi Kivity | mr->ram = true;
|
954 | 14a3c10a | Avi Kivity | mr->terminates = true;
|
955 | 545e92e0 | Avi Kivity | mr->destructor = memory_region_destructor_ram_from_ptr; |
956 | c5705a77 | Avi Kivity | mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr); |
957 | 093bc2cd | Avi Kivity | } |
958 | 093bc2cd | Avi Kivity | |
959 | 093bc2cd | Avi Kivity | void memory_region_init_alias(MemoryRegion *mr,
|
960 | 093bc2cd | Avi Kivity | const char *name, |
961 | 093bc2cd | Avi Kivity | MemoryRegion *orig, |
962 | a8170e5e | Avi Kivity | hwaddr offset, |
963 | 093bc2cd | Avi Kivity | uint64_t size) |
964 | 093bc2cd | Avi Kivity | { |
965 | 093bc2cd | Avi Kivity | memory_region_init(mr, name, size); |
966 | 093bc2cd | Avi Kivity | mr->alias = orig; |
967 | 093bc2cd | Avi Kivity | mr->alias_offset = offset; |
968 | 093bc2cd | Avi Kivity | } |
969 | 093bc2cd | Avi Kivity | |
970 | d0a9b5bc | Avi Kivity | void memory_region_init_rom_device(MemoryRegion *mr,
|
971 | d0a9b5bc | Avi Kivity | const MemoryRegionOps *ops,
|
972 | 75f5941c | Avi Kivity | void *opaque,
|
973 | d0a9b5bc | Avi Kivity | const char *name, |
974 | d0a9b5bc | Avi Kivity | uint64_t size) |
975 | d0a9b5bc | Avi Kivity | { |
976 | d0a9b5bc | Avi Kivity | memory_region_init(mr, name, size); |
977 | 7bc2b9cd | Avi Kivity | mr->ops = ops; |
978 | 75f5941c | Avi Kivity | mr->opaque = opaque; |
979 | d0a9b5bc | Avi Kivity | mr->terminates = true;
|
980 | 75c578dc | Avi Kivity | mr->rom_device = true;
|
981 | d0a9b5bc | Avi Kivity | mr->destructor = memory_region_destructor_rom_device; |
982 | c5705a77 | Avi Kivity | mr->ram_addr = qemu_ram_alloc(size, mr); |
983 | d0a9b5bc | Avi Kivity | } |
984 | d0a9b5bc | Avi Kivity | |
985 | a8170e5e | Avi Kivity | static uint64_t invalid_read(void *opaque, hwaddr addr, |
986 | 1660e72d | Jan Kiszka | unsigned size)
|
987 | 1660e72d | Jan Kiszka | { |
988 | 1660e72d | Jan Kiszka | MemoryRegion *mr = opaque; |
989 | 1660e72d | Jan Kiszka | |
990 | 1660e72d | Jan Kiszka | if (!mr->warning_printed) {
|
991 | 1660e72d | Jan Kiszka | fprintf(stderr, "Invalid read from memory region %s\n", mr->name);
|
992 | 1660e72d | Jan Kiszka | mr->warning_printed = true;
|
993 | 1660e72d | Jan Kiszka | } |
994 | 1660e72d | Jan Kiszka | return -1U; |
995 | 1660e72d | Jan Kiszka | } |
996 | 1660e72d | Jan Kiszka | |
997 | a8170e5e | Avi Kivity | static void invalid_write(void *opaque, hwaddr addr, uint64_t data, |
998 | 1660e72d | Jan Kiszka | unsigned size)
|
999 | 1660e72d | Jan Kiszka | { |
1000 | 1660e72d | Jan Kiszka | MemoryRegion *mr = opaque; |
1001 | 1660e72d | Jan Kiszka | |
1002 | 1660e72d | Jan Kiszka | if (!mr->warning_printed) {
|
1003 | 1660e72d | Jan Kiszka | fprintf(stderr, "Invalid write to memory region %s\n", mr->name);
|
1004 | 1660e72d | Jan Kiszka | mr->warning_printed = true;
|
1005 | 1660e72d | Jan Kiszka | } |
1006 | 1660e72d | Jan Kiszka | } |
1007 | 1660e72d | Jan Kiszka | |
1008 | 1660e72d | Jan Kiszka | static const MemoryRegionOps reservation_ops = { |
1009 | 1660e72d | Jan Kiszka | .read = invalid_read, |
1010 | 1660e72d | Jan Kiszka | .write = invalid_write, |
1011 | 1660e72d | Jan Kiszka | .endianness = DEVICE_NATIVE_ENDIAN, |
1012 | 1660e72d | Jan Kiszka | }; |
1013 | 1660e72d | Jan Kiszka | |
1014 | 1660e72d | Jan Kiszka | void memory_region_init_reservation(MemoryRegion *mr,
|
1015 | 1660e72d | Jan Kiszka | const char *name, |
1016 | 1660e72d | Jan Kiszka | uint64_t size) |
1017 | 1660e72d | Jan Kiszka | { |
1018 | 1660e72d | Jan Kiszka | memory_region_init_io(mr, &reservation_ops, mr, name, size); |
1019 | 1660e72d | Jan Kiszka | } |
1020 | 1660e72d | Jan Kiszka | |
1021 | 093bc2cd | Avi Kivity | void memory_region_destroy(MemoryRegion *mr)
|
1022 | 093bc2cd | Avi Kivity | { |
1023 | 093bc2cd | Avi Kivity | assert(QTAILQ_EMPTY(&mr->subregions)); |
1024 | 2be0e25f | Avi Kivity | assert(memory_region_transaction_depth == 0);
|
1025 | 545e92e0 | Avi Kivity | mr->destructor(mr); |
1026 | 093bc2cd | Avi Kivity | memory_region_clear_coalescing(mr); |
1027 | 7267c094 | Anthony Liguori | g_free((char *)mr->name);
|
1028 | 7267c094 | Anthony Liguori | g_free(mr->ioeventfds); |
1029 | 093bc2cd | Avi Kivity | } |
1030 | 093bc2cd | Avi Kivity | |
1031 | 093bc2cd | Avi Kivity | uint64_t memory_region_size(MemoryRegion *mr) |
1032 | 093bc2cd | Avi Kivity | { |
1033 | 08dafab4 | Avi Kivity | if (int128_eq(mr->size, int128_2_64())) {
|
1034 | 08dafab4 | Avi Kivity | return UINT64_MAX;
|
1035 | 08dafab4 | Avi Kivity | } |
1036 | 08dafab4 | Avi Kivity | return int128_get64(mr->size);
|
1037 | 093bc2cd | Avi Kivity | } |
1038 | 093bc2cd | Avi Kivity | |
1039 | 8991c79b | Avi Kivity | const char *memory_region_name(MemoryRegion *mr) |
1040 | 8991c79b | Avi Kivity | { |
1041 | 8991c79b | Avi Kivity | return mr->name;
|
1042 | 8991c79b | Avi Kivity | } |
1043 | 8991c79b | Avi Kivity | |
1044 | 8ea9252a | Avi Kivity | bool memory_region_is_ram(MemoryRegion *mr)
|
1045 | 8ea9252a | Avi Kivity | { |
1046 | 8ea9252a | Avi Kivity | return mr->ram;
|
1047 | 8ea9252a | Avi Kivity | } |
1048 | 8ea9252a | Avi Kivity | |
1049 | 55043ba3 | Avi Kivity | bool memory_region_is_logging(MemoryRegion *mr)
|
1050 | 55043ba3 | Avi Kivity | { |
1051 | 55043ba3 | Avi Kivity | return mr->dirty_log_mask;
|
1052 | 55043ba3 | Avi Kivity | } |
1053 | 55043ba3 | Avi Kivity | |
1054 | ce7923da | Avi Kivity | bool memory_region_is_rom(MemoryRegion *mr)
|
1055 | ce7923da | Avi Kivity | { |
1056 | ce7923da | Avi Kivity | return mr->ram && mr->readonly;
|
1057 | ce7923da | Avi Kivity | } |
1058 | ce7923da | Avi Kivity | |
1059 | 093bc2cd | Avi Kivity | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
1060 | 093bc2cd | Avi Kivity | { |
1061 | 5a583347 | Avi Kivity | uint8_t mask = 1 << client;
|
1062 | 5a583347 | Avi Kivity | |
1063 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1064 | 5a583347 | Avi Kivity | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
1065 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1066 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1067 | 093bc2cd | Avi Kivity | } |
1068 | 093bc2cd | Avi Kivity | |
1069 | a8170e5e | Avi Kivity | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr,
|
1070 | a8170e5e | Avi Kivity | hwaddr size, unsigned client)
|
1071 | 093bc2cd | Avi Kivity | { |
1072 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1073 | cd7a45c9 | Blue Swirl | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, size,
|
1074 | cd7a45c9 | Blue Swirl | 1 << client);
|
1075 | 093bc2cd | Avi Kivity | } |
1076 | 093bc2cd | Avi Kivity | |
1077 | a8170e5e | Avi Kivity | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr,
|
1078 | a8170e5e | Avi Kivity | hwaddr size) |
1079 | 093bc2cd | Avi Kivity | { |
1080 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1081 | fd4aa979 | Blue Swirl | return cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, -1); |
1082 | 093bc2cd | Avi Kivity | } |
1083 | 093bc2cd | Avi Kivity | |
1084 | 6c279db8 | Juan Quintela | bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr,
|
1085 | 6c279db8 | Juan Quintela | hwaddr size, unsigned client)
|
1086 | 6c279db8 | Juan Quintela | { |
1087 | 6c279db8 | Juan Quintela | bool ret;
|
1088 | 6c279db8 | Juan Quintela | assert(mr->terminates); |
1089 | 6c279db8 | Juan Quintela | ret = cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, |
1090 | 6c279db8 | Juan Quintela | 1 << client);
|
1091 | 6c279db8 | Juan Quintela | if (ret) {
|
1092 | 6c279db8 | Juan Quintela | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
1093 | 6c279db8 | Juan Quintela | mr->ram_addr + addr + size, |
1094 | 6c279db8 | Juan Quintela | 1 << client);
|
1095 | 6c279db8 | Juan Quintela | } |
1096 | 6c279db8 | Juan Quintela | return ret;
|
1097 | 6c279db8 | Juan Quintela | } |
1098 | 6c279db8 | Juan Quintela | |
1099 | 6c279db8 | Juan Quintela | |
1100 | 093bc2cd | Avi Kivity | void memory_region_sync_dirty_bitmap(MemoryRegion *mr)
|
1101 | 093bc2cd | Avi Kivity | { |
1102 | 0d673e36 | Avi Kivity | AddressSpace *as; |
1103 | 5a583347 | Avi Kivity | FlatRange *fr; |
1104 | 5a583347 | Avi Kivity | |
1105 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
1106 | 0d673e36 | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
1107 | 0d673e36 | Avi Kivity | if (fr->mr == mr) {
|
1108 | 0d673e36 | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
1109 | 0d673e36 | Avi Kivity | } |
1110 | 5a583347 | Avi Kivity | } |
1111 | 5a583347 | Avi Kivity | } |
1112 | 093bc2cd | Avi Kivity | } |
1113 | 093bc2cd | Avi Kivity | |
1114 | 093bc2cd | Avi Kivity | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
1115 | 093bc2cd | Avi Kivity | { |
1116 | fb1cd6f9 | Avi Kivity | if (mr->readonly != readonly) {
|
1117 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1118 | fb1cd6f9 | Avi Kivity | mr->readonly = readonly; |
1119 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1120 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1121 | fb1cd6f9 | Avi Kivity | } |
1122 | 093bc2cd | Avi Kivity | } |
1123 | 093bc2cd | Avi Kivity | |
1124 | d0a9b5bc | Avi Kivity | void memory_region_rom_device_set_readable(MemoryRegion *mr, bool readable) |
1125 | d0a9b5bc | Avi Kivity | { |
1126 | d0a9b5bc | Avi Kivity | if (mr->readable != readable) {
|
1127 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1128 | d0a9b5bc | Avi Kivity | mr->readable = readable; |
1129 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1130 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1131 | d0a9b5bc | Avi Kivity | } |
1132 | d0a9b5bc | Avi Kivity | } |
1133 | d0a9b5bc | Avi Kivity | |
1134 | a8170e5e | Avi Kivity | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr,
|
1135 | a8170e5e | Avi Kivity | hwaddr size, unsigned client)
|
1136 | 093bc2cd | Avi Kivity | { |
1137 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1138 | 5a583347 | Avi Kivity | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
1139 | 5a583347 | Avi Kivity | mr->ram_addr + addr + size, |
1140 | 5a583347 | Avi Kivity | 1 << client);
|
1141 | 093bc2cd | Avi Kivity | } |
1142 | 093bc2cd | Avi Kivity | |
1143 | 093bc2cd | Avi Kivity | void *memory_region_get_ram_ptr(MemoryRegion *mr)
|
1144 | 093bc2cd | Avi Kivity | { |
1145 | 093bc2cd | Avi Kivity | if (mr->alias) {
|
1146 | 093bc2cd | Avi Kivity | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset;
|
1147 | 093bc2cd | Avi Kivity | } |
1148 | 093bc2cd | Avi Kivity | |
1149 | 14a3c10a | Avi Kivity | assert(mr->terminates); |
1150 | 093bc2cd | Avi Kivity | |
1151 | 021d26d1 | Jan Kiszka | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK);
|
1152 | 093bc2cd | Avi Kivity | } |
1153 | 093bc2cd | Avi Kivity | |
1154 | 0d673e36 | Avi Kivity | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
1155 | 093bc2cd | Avi Kivity | { |
1156 | 093bc2cd | Avi Kivity | FlatRange *fr; |
1157 | 093bc2cd | Avi Kivity | CoalescedMemoryRange *cmr; |
1158 | 093bc2cd | Avi Kivity | AddrRange tmp; |
1159 | 95d2994a | Avi Kivity | MemoryRegionSection section; |
1160 | 093bc2cd | Avi Kivity | |
1161 | 0d673e36 | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
1162 | 093bc2cd | Avi Kivity | if (fr->mr == mr) {
|
1163 | 95d2994a | Avi Kivity | section = (MemoryRegionSection) { |
1164 | f6790af6 | Avi Kivity | .address_space = as, |
1165 | 95d2994a | Avi Kivity | .offset_within_address_space = int128_get64(fr->addr.start), |
1166 | 95d2994a | Avi Kivity | .size = int128_get64(fr->addr.size), |
1167 | 95d2994a | Avi Kivity | }; |
1168 | 95d2994a | Avi Kivity | |
1169 | 95d2994a | Avi Kivity | MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, §ion, |
1170 | 95d2994a | Avi Kivity | int128_get64(fr->addr.start), |
1171 | 95d2994a | Avi Kivity | int128_get64(fr->addr.size)); |
1172 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
1173 | 093bc2cd | Avi Kivity | tmp = addrrange_shift(cmr->addr, |
1174 | 08dafab4 | Avi Kivity | int128_sub(fr->addr.start, |
1175 | 08dafab4 | Avi Kivity | int128_make64(fr->offset_in_region))); |
1176 | 093bc2cd | Avi Kivity | if (!addrrange_intersects(tmp, fr->addr)) {
|
1177 | 093bc2cd | Avi Kivity | continue;
|
1178 | 093bc2cd | Avi Kivity | } |
1179 | 093bc2cd | Avi Kivity | tmp = addrrange_intersection(tmp, fr->addr); |
1180 | 95d2994a | Avi Kivity | MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, §ion, |
1181 | 95d2994a | Avi Kivity | int128_get64(tmp.start), |
1182 | 95d2994a | Avi Kivity | int128_get64(tmp.size)); |
1183 | 093bc2cd | Avi Kivity | } |
1184 | 093bc2cd | Avi Kivity | } |
1185 | 093bc2cd | Avi Kivity | } |
1186 | 093bc2cd | Avi Kivity | } |
1187 | 093bc2cd | Avi Kivity | |
1188 | 0d673e36 | Avi Kivity | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
1189 | 0d673e36 | Avi Kivity | { |
1190 | 0d673e36 | Avi Kivity | AddressSpace *as; |
1191 | 0d673e36 | Avi Kivity | |
1192 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
1193 | 0d673e36 | Avi Kivity | memory_region_update_coalesced_range_as(mr, as); |
1194 | 0d673e36 | Avi Kivity | } |
1195 | 0d673e36 | Avi Kivity | } |
1196 | 0d673e36 | Avi Kivity | |
1197 | 093bc2cd | Avi Kivity | void memory_region_set_coalescing(MemoryRegion *mr)
|
1198 | 093bc2cd | Avi Kivity | { |
1199 | 093bc2cd | Avi Kivity | memory_region_clear_coalescing(mr); |
1200 | 08dafab4 | Avi Kivity | memory_region_add_coalescing(mr, 0, int128_get64(mr->size));
|
1201 | 093bc2cd | Avi Kivity | } |
1202 | 093bc2cd | Avi Kivity | |
1203 | 093bc2cd | Avi Kivity | void memory_region_add_coalescing(MemoryRegion *mr,
|
1204 | a8170e5e | Avi Kivity | hwaddr offset, |
1205 | 093bc2cd | Avi Kivity | uint64_t size) |
1206 | 093bc2cd | Avi Kivity | { |
1207 | 7267c094 | Anthony Liguori | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr));
|
1208 | 093bc2cd | Avi Kivity | |
1209 | 08dafab4 | Avi Kivity | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
1210 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
1211 | 093bc2cd | Avi Kivity | memory_region_update_coalesced_range(mr); |
1212 | d410515e | Jan Kiszka | memory_region_set_flush_coalesced(mr); |
1213 | 093bc2cd | Avi Kivity | } |
1214 | 093bc2cd | Avi Kivity | |
1215 | 093bc2cd | Avi Kivity | void memory_region_clear_coalescing(MemoryRegion *mr)
|
1216 | 093bc2cd | Avi Kivity | { |
1217 | 093bc2cd | Avi Kivity | CoalescedMemoryRange *cmr; |
1218 | 093bc2cd | Avi Kivity | |
1219 | d410515e | Jan Kiszka | qemu_flush_coalesced_mmio_buffer(); |
1220 | d410515e | Jan Kiszka | mr->flush_coalesced_mmio = false;
|
1221 | d410515e | Jan Kiszka | |
1222 | 093bc2cd | Avi Kivity | while (!QTAILQ_EMPTY(&mr->coalesced)) {
|
1223 | 093bc2cd | Avi Kivity | cmr = QTAILQ_FIRST(&mr->coalesced); |
1224 | 093bc2cd | Avi Kivity | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
1225 | 7267c094 | Anthony Liguori | g_free(cmr); |
1226 | 093bc2cd | Avi Kivity | } |
1227 | 093bc2cd | Avi Kivity | memory_region_update_coalesced_range(mr); |
1228 | 093bc2cd | Avi Kivity | } |
1229 | 093bc2cd | Avi Kivity | |
1230 | d410515e | Jan Kiszka | void memory_region_set_flush_coalesced(MemoryRegion *mr)
|
1231 | d410515e | Jan Kiszka | { |
1232 | d410515e | Jan Kiszka | mr->flush_coalesced_mmio = true;
|
1233 | d410515e | Jan Kiszka | } |
1234 | d410515e | Jan Kiszka | |
1235 | d410515e | Jan Kiszka | void memory_region_clear_flush_coalesced(MemoryRegion *mr)
|
1236 | d410515e | Jan Kiszka | { |
1237 | d410515e | Jan Kiszka | qemu_flush_coalesced_mmio_buffer(); |
1238 | d410515e | Jan Kiszka | if (QTAILQ_EMPTY(&mr->coalesced)) {
|
1239 | d410515e | Jan Kiszka | mr->flush_coalesced_mmio = false;
|
1240 | d410515e | Jan Kiszka | } |
1241 | d410515e | Jan Kiszka | } |
1242 | d410515e | Jan Kiszka | |
1243 | 3e9d69e7 | Avi Kivity | void memory_region_add_eventfd(MemoryRegion *mr,
|
1244 | a8170e5e | Avi Kivity | hwaddr addr, |
1245 | 3e9d69e7 | Avi Kivity | unsigned size,
|
1246 | 3e9d69e7 | Avi Kivity | bool match_data,
|
1247 | 3e9d69e7 | Avi Kivity | uint64_t data, |
1248 | 753d5e14 | Paolo Bonzini | EventNotifier *e) |
1249 | 3e9d69e7 | Avi Kivity | { |
1250 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd mrfd = { |
1251 | 08dafab4 | Avi Kivity | .addr.start = int128_make64(addr), |
1252 | 08dafab4 | Avi Kivity | .addr.size = int128_make64(size), |
1253 | 3e9d69e7 | Avi Kivity | .match_data = match_data, |
1254 | 3e9d69e7 | Avi Kivity | .data = data, |
1255 | 753d5e14 | Paolo Bonzini | .e = e, |
1256 | 3e9d69e7 | Avi Kivity | }; |
1257 | 3e9d69e7 | Avi Kivity | unsigned i;
|
1258 | 3e9d69e7 | Avi Kivity | |
1259 | 28f362be | Alexander Graf | adjust_endianness(mr, &mrfd.data, size); |
1260 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1261 | 3e9d69e7 | Avi Kivity | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
1262 | 3e9d69e7 | Avi Kivity | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) {
|
1263 | 3e9d69e7 | Avi Kivity | break;
|
1264 | 3e9d69e7 | Avi Kivity | } |
1265 | 3e9d69e7 | Avi Kivity | } |
1266 | 3e9d69e7 | Avi Kivity | ++mr->ioeventfd_nb; |
1267 | 7267c094 | Anthony Liguori | mr->ioeventfds = g_realloc(mr->ioeventfds, |
1268 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb);
|
1269 | 3e9d69e7 | Avi Kivity | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i],
|
1270 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
1271 | 3e9d69e7 | Avi Kivity | mr->ioeventfds[i] = mrfd; |
1272 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1273 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1274 | 3e9d69e7 | Avi Kivity | } |
1275 | 3e9d69e7 | Avi Kivity | |
1276 | 3e9d69e7 | Avi Kivity | void memory_region_del_eventfd(MemoryRegion *mr,
|
1277 | a8170e5e | Avi Kivity | hwaddr addr, |
1278 | 3e9d69e7 | Avi Kivity | unsigned size,
|
1279 | 3e9d69e7 | Avi Kivity | bool match_data,
|
1280 | 3e9d69e7 | Avi Kivity | uint64_t data, |
1281 | 753d5e14 | Paolo Bonzini | EventNotifier *e) |
1282 | 3e9d69e7 | Avi Kivity | { |
1283 | 3e9d69e7 | Avi Kivity | MemoryRegionIoeventfd mrfd = { |
1284 | 08dafab4 | Avi Kivity | .addr.start = int128_make64(addr), |
1285 | 08dafab4 | Avi Kivity | .addr.size = int128_make64(size), |
1286 | 3e9d69e7 | Avi Kivity | .match_data = match_data, |
1287 | 3e9d69e7 | Avi Kivity | .data = data, |
1288 | 753d5e14 | Paolo Bonzini | .e = e, |
1289 | 3e9d69e7 | Avi Kivity | }; |
1290 | 3e9d69e7 | Avi Kivity | unsigned i;
|
1291 | 3e9d69e7 | Avi Kivity | |
1292 | 28f362be | Alexander Graf | adjust_endianness(mr, &mrfd.data, size); |
1293 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1294 | 3e9d69e7 | Avi Kivity | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
1295 | 3e9d69e7 | Avi Kivity | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) {
|
1296 | 3e9d69e7 | Avi Kivity | break;
|
1297 | 3e9d69e7 | Avi Kivity | } |
1298 | 3e9d69e7 | Avi Kivity | } |
1299 | 3e9d69e7 | Avi Kivity | assert(i != mr->ioeventfd_nb); |
1300 | 3e9d69e7 | Avi Kivity | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1],
|
1301 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
1302 | 3e9d69e7 | Avi Kivity | --mr->ioeventfd_nb; |
1303 | 7267c094 | Anthony Liguori | mr->ioeventfds = g_realloc(mr->ioeventfds, |
1304 | 3e9d69e7 | Avi Kivity | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
1305 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1306 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1307 | 3e9d69e7 | Avi Kivity | } |
1308 | 3e9d69e7 | Avi Kivity | |
1309 | 093bc2cd | Avi Kivity | static void memory_region_add_subregion_common(MemoryRegion *mr, |
1310 | a8170e5e | Avi Kivity | hwaddr offset, |
1311 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1312 | 093bc2cd | Avi Kivity | { |
1313 | 093bc2cd | Avi Kivity | MemoryRegion *other; |
1314 | 093bc2cd | Avi Kivity | |
1315 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1316 | 59023ef4 | Jan Kiszka | |
1317 | 093bc2cd | Avi Kivity | assert(!subregion->parent); |
1318 | 093bc2cd | Avi Kivity | subregion->parent = mr; |
1319 | 093bc2cd | Avi Kivity | subregion->addr = offset; |
1320 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
1321 | 093bc2cd | Avi Kivity | if (subregion->may_overlap || other->may_overlap) {
|
1322 | 093bc2cd | Avi Kivity | continue;
|
1323 | 093bc2cd | Avi Kivity | } |
1324 | 2c7cfd65 | Hu Tao | if (int128_ge(int128_make64(offset),
|
1325 | 08dafab4 | Avi Kivity | int128_add(int128_make64(other->addr), other->size)) |
1326 | 08dafab4 | Avi Kivity | || int128_le(int128_add(int128_make64(offset), subregion->size), |
1327 | 08dafab4 | Avi Kivity | int128_make64(other->addr))) { |
1328 | 093bc2cd | Avi Kivity | continue;
|
1329 | 093bc2cd | Avi Kivity | } |
1330 | a5e1cbc8 | Anthony Liguori | #if 0
|
1331 | 860329b2 | Michael Walle | printf("warning: subregion collision %llx/%llx (%s) "
|
1332 | 860329b2 | Michael Walle | "vs %llx/%llx (%s)\n",
|
1333 | 093bc2cd | Avi Kivity | (unsigned long long)offset,
|
1334 | 08dafab4 | Avi Kivity | (unsigned long long)int128_get64(subregion->size),
|
1335 | 860329b2 | Michael Walle | subregion->name,
|
1336 | 860329b2 | Michael Walle | (unsigned long long)other->addr,
|
1337 | 08dafab4 | Avi Kivity | (unsigned long long)int128_get64(other->size),
|
1338 | 860329b2 | Michael Walle | other->name);
|
1339 | a5e1cbc8 | Anthony Liguori | #endif
|
1340 | 093bc2cd | Avi Kivity | } |
1341 | 093bc2cd | Avi Kivity | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
1342 | 093bc2cd | Avi Kivity | if (subregion->priority >= other->priority) {
|
1343 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
1344 | 093bc2cd | Avi Kivity | goto done;
|
1345 | 093bc2cd | Avi Kivity | } |
1346 | 093bc2cd | Avi Kivity | } |
1347 | 093bc2cd | Avi Kivity | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
1348 | 093bc2cd | Avi Kivity | done:
|
1349 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled && subregion->enabled; |
1350 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1351 | 093bc2cd | Avi Kivity | } |
1352 | 093bc2cd | Avi Kivity | |
1353 | 093bc2cd | Avi Kivity | |
1354 | 093bc2cd | Avi Kivity | void memory_region_add_subregion(MemoryRegion *mr,
|
1355 | a8170e5e | Avi Kivity | hwaddr offset, |
1356 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1357 | 093bc2cd | Avi Kivity | { |
1358 | 093bc2cd | Avi Kivity | subregion->may_overlap = false;
|
1359 | 093bc2cd | Avi Kivity | subregion->priority = 0;
|
1360 | 093bc2cd | Avi Kivity | memory_region_add_subregion_common(mr, offset, subregion); |
1361 | 093bc2cd | Avi Kivity | } |
1362 | 093bc2cd | Avi Kivity | |
1363 | 093bc2cd | Avi Kivity | void memory_region_add_subregion_overlap(MemoryRegion *mr,
|
1364 | a8170e5e | Avi Kivity | hwaddr offset, |
1365 | 093bc2cd | Avi Kivity | MemoryRegion *subregion, |
1366 | 093bc2cd | Avi Kivity | unsigned priority)
|
1367 | 093bc2cd | Avi Kivity | { |
1368 | 093bc2cd | Avi Kivity | subregion->may_overlap = true;
|
1369 | 093bc2cd | Avi Kivity | subregion->priority = priority; |
1370 | 093bc2cd | Avi Kivity | memory_region_add_subregion_common(mr, offset, subregion); |
1371 | 093bc2cd | Avi Kivity | } |
1372 | 093bc2cd | Avi Kivity | |
1373 | 093bc2cd | Avi Kivity | void memory_region_del_subregion(MemoryRegion *mr,
|
1374 | 093bc2cd | Avi Kivity | MemoryRegion *subregion) |
1375 | 093bc2cd | Avi Kivity | { |
1376 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1377 | 093bc2cd | Avi Kivity | assert(subregion->parent == mr); |
1378 | 093bc2cd | Avi Kivity | subregion->parent = NULL;
|
1379 | 093bc2cd | Avi Kivity | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
1380 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled && subregion->enabled; |
1381 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1382 | 6bba19ba | Avi Kivity | } |
1383 | 6bba19ba | Avi Kivity | |
1384 | 6bba19ba | Avi Kivity | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
1385 | 6bba19ba | Avi Kivity | { |
1386 | 6bba19ba | Avi Kivity | if (enabled == mr->enabled) {
|
1387 | 6bba19ba | Avi Kivity | return;
|
1388 | 6bba19ba | Avi Kivity | } |
1389 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1390 | 6bba19ba | Avi Kivity | mr->enabled = enabled; |
1391 | 22bde714 | Jan Kiszka | memory_region_update_pending = true;
|
1392 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1393 | 093bc2cd | Avi Kivity | } |
1394 | 1c0ffa58 | Avi Kivity | |
1395 | a8170e5e | Avi Kivity | void memory_region_set_address(MemoryRegion *mr, hwaddr addr)
|
1396 | 2282e1af | Avi Kivity | { |
1397 | 2282e1af | Avi Kivity | MemoryRegion *parent = mr->parent; |
1398 | 2282e1af | Avi Kivity | unsigned priority = mr->priority;
|
1399 | 2282e1af | Avi Kivity | bool may_overlap = mr->may_overlap;
|
1400 | 2282e1af | Avi Kivity | |
1401 | 2282e1af | Avi Kivity | if (addr == mr->addr || !parent) {
|
1402 | 2282e1af | Avi Kivity | mr->addr = addr; |
1403 | 2282e1af | Avi Kivity | return;
|
1404 | 2282e1af | Avi Kivity | } |
1405 | 2282e1af | Avi Kivity | |
1406 | 2282e1af | Avi Kivity | memory_region_transaction_begin(); |
1407 | 2282e1af | Avi Kivity | memory_region_del_subregion(parent, mr); |
1408 | 2282e1af | Avi Kivity | if (may_overlap) {
|
1409 | 2282e1af | Avi Kivity | memory_region_add_subregion_overlap(parent, addr, mr, priority); |
1410 | 2282e1af | Avi Kivity | } else {
|
1411 | 2282e1af | Avi Kivity | memory_region_add_subregion(parent, addr, mr); |
1412 | 2282e1af | Avi Kivity | } |
1413 | 2282e1af | Avi Kivity | memory_region_transaction_commit(); |
1414 | 2282e1af | Avi Kivity | } |
1415 | 2282e1af | Avi Kivity | |
1416 | a8170e5e | Avi Kivity | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset)
|
1417 | 4703359e | Avi Kivity | { |
1418 | 4703359e | Avi Kivity | assert(mr->alias); |
1419 | 4703359e | Avi Kivity | |
1420 | 59023ef4 | Jan Kiszka | if (offset == mr->alias_offset) {
|
1421 | 4703359e | Avi Kivity | return;
|
1422 | 4703359e | Avi Kivity | } |
1423 | 4703359e | Avi Kivity | |
1424 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1425 | 59023ef4 | Jan Kiszka | mr->alias_offset = offset; |
1426 | 22bde714 | Jan Kiszka | memory_region_update_pending |= mr->enabled; |
1427 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1428 | 4703359e | Avi Kivity | } |
1429 | 4703359e | Avi Kivity | |
1430 | e34911c4 | Avi Kivity | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
1431 | e34911c4 | Avi Kivity | { |
1432 | e34911c4 | Avi Kivity | return mr->ram_addr;
|
1433 | e34911c4 | Avi Kivity | } |
1434 | e34911c4 | Avi Kivity | |
1435 | e2177955 | Avi Kivity | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
1436 | e2177955 | Avi Kivity | { |
1437 | e2177955 | Avi Kivity | const AddrRange *addr = addr_;
|
1438 | e2177955 | Avi Kivity | const FlatRange *fr = fr_;
|
1439 | e2177955 | Avi Kivity | |
1440 | e2177955 | Avi Kivity | if (int128_le(addrrange_end(*addr), fr->addr.start)) {
|
1441 | e2177955 | Avi Kivity | return -1; |
1442 | e2177955 | Avi Kivity | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
1443 | e2177955 | Avi Kivity | return 1; |
1444 | e2177955 | Avi Kivity | } |
1445 | e2177955 | Avi Kivity | return 0; |
1446 | e2177955 | Avi Kivity | } |
1447 | e2177955 | Avi Kivity | |
1448 | e2177955 | Avi Kivity | static FlatRange *address_space_lookup(AddressSpace *as, AddrRange addr)
|
1449 | e2177955 | Avi Kivity | { |
1450 | 8786db7c | Avi Kivity | return bsearch(&addr, as->current_map->ranges, as->current_map->nr,
|
1451 | e2177955 | Avi Kivity | sizeof(FlatRange), cmp_flatrange_addr);
|
1452 | e2177955 | Avi Kivity | } |
1453 | e2177955 | Avi Kivity | |
1454 | e2177955 | Avi Kivity | MemoryRegionSection memory_region_find(MemoryRegion *address_space, |
1455 | a8170e5e | Avi Kivity | hwaddr addr, uint64_t size) |
1456 | e2177955 | Avi Kivity | { |
1457 | e2177955 | Avi Kivity | AddressSpace *as = memory_region_to_address_space(address_space); |
1458 | e2177955 | Avi Kivity | AddrRange range = addrrange_make(int128_make64(addr), |
1459 | e2177955 | Avi Kivity | int128_make64(size)); |
1460 | e2177955 | Avi Kivity | FlatRange *fr = address_space_lookup(as, range); |
1461 | e2177955 | Avi Kivity | MemoryRegionSection ret = { .mr = NULL, .size = 0 }; |
1462 | e2177955 | Avi Kivity | |
1463 | e2177955 | Avi Kivity | if (!fr) {
|
1464 | e2177955 | Avi Kivity | return ret;
|
1465 | e2177955 | Avi Kivity | } |
1466 | e2177955 | Avi Kivity | |
1467 | 8786db7c | Avi Kivity | while (fr > as->current_map->ranges
|
1468 | e2177955 | Avi Kivity | && addrrange_intersects(fr[-1].addr, range)) {
|
1469 | e2177955 | Avi Kivity | --fr; |
1470 | e2177955 | Avi Kivity | } |
1471 | e2177955 | Avi Kivity | |
1472 | e2177955 | Avi Kivity | ret.mr = fr->mr; |
1473 | e2177955 | Avi Kivity | range = addrrange_intersection(range, fr->addr); |
1474 | e2177955 | Avi Kivity | ret.offset_within_region = fr->offset_in_region; |
1475 | e2177955 | Avi Kivity | ret.offset_within_region += int128_get64(int128_sub(range.start, |
1476 | e2177955 | Avi Kivity | fr->addr.start)); |
1477 | e2177955 | Avi Kivity | ret.size = int128_get64(range.size); |
1478 | e2177955 | Avi Kivity | ret.offset_within_address_space = int128_get64(range.start); |
1479 | 7a8499e8 | Avi Kivity | ret.readonly = fr->readonly; |
1480 | e2177955 | Avi Kivity | return ret;
|
1481 | e2177955 | Avi Kivity | } |
1482 | e2177955 | Avi Kivity | |
1483 | 86e775c6 | Avi Kivity | void memory_global_sync_dirty_bitmap(MemoryRegion *address_space)
|
1484 | 86e775c6 | Avi Kivity | { |
1485 | 7664e80c | Avi Kivity | AddressSpace *as = memory_region_to_address_space(address_space); |
1486 | 7664e80c | Avi Kivity | FlatRange *fr; |
1487 | 7664e80c | Avi Kivity | |
1488 | 8786db7c | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
1489 | 72e22d2f | Avi Kivity | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
1490 | 7664e80c | Avi Kivity | } |
1491 | 7664e80c | Avi Kivity | } |
1492 | 7664e80c | Avi Kivity | |
1493 | 7664e80c | Avi Kivity | void memory_global_dirty_log_start(void) |
1494 | 7664e80c | Avi Kivity | { |
1495 | 7664e80c | Avi Kivity | global_dirty_log = true;
|
1496 | 7376e582 | Avi Kivity | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
1497 | 7664e80c | Avi Kivity | } |
1498 | 7664e80c | Avi Kivity | |
1499 | 7664e80c | Avi Kivity | void memory_global_dirty_log_stop(void) |
1500 | 7664e80c | Avi Kivity | { |
1501 | 7664e80c | Avi Kivity | global_dirty_log = false;
|
1502 | 7376e582 | Avi Kivity | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
1503 | 7664e80c | Avi Kivity | } |
1504 | 7664e80c | Avi Kivity | |
1505 | 7664e80c | Avi Kivity | static void listener_add_address_space(MemoryListener *listener, |
1506 | 7664e80c | Avi Kivity | AddressSpace *as) |
1507 | 7664e80c | Avi Kivity | { |
1508 | 7664e80c | Avi Kivity | FlatRange *fr; |
1509 | 7664e80c | Avi Kivity | |
1510 | 221b3a3f | Julien Grall | if (listener->address_space_filter
|
1511 | f6790af6 | Avi Kivity | && listener->address_space_filter != as) { |
1512 | 221b3a3f | Julien Grall | return;
|
1513 | 221b3a3f | Julien Grall | } |
1514 | 221b3a3f | Julien Grall | |
1515 | 7664e80c | Avi Kivity | if (global_dirty_log) {
|
1516 | 975aefe0 | Avi Kivity | if (listener->log_global_start) {
|
1517 | 975aefe0 | Avi Kivity | listener->log_global_start(listener); |
1518 | 975aefe0 | Avi Kivity | } |
1519 | 7664e80c | Avi Kivity | } |
1520 | 975aefe0 | Avi Kivity | |
1521 | 8786db7c | Avi Kivity | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
1522 | 7664e80c | Avi Kivity | MemoryRegionSection section = { |
1523 | 7664e80c | Avi Kivity | .mr = fr->mr, |
1524 | f6790af6 | Avi Kivity | .address_space = as, |
1525 | 7664e80c | Avi Kivity | .offset_within_region = fr->offset_in_region, |
1526 | 7664e80c | Avi Kivity | .size = int128_get64(fr->addr.size), |
1527 | 7664e80c | Avi Kivity | .offset_within_address_space = int128_get64(fr->addr.start), |
1528 | 7a8499e8 | Avi Kivity | .readonly = fr->readonly, |
1529 | 7664e80c | Avi Kivity | }; |
1530 | 975aefe0 | Avi Kivity | if (listener->region_add) {
|
1531 | 975aefe0 | Avi Kivity | listener->region_add(listener, §ion); |
1532 | 975aefe0 | Avi Kivity | } |
1533 | 7664e80c | Avi Kivity | } |
1534 | 7664e80c | Avi Kivity | } |
1535 | 7664e80c | Avi Kivity | |
1536 | f6790af6 | Avi Kivity | void memory_listener_register(MemoryListener *listener, AddressSpace *filter)
|
1537 | 7664e80c | Avi Kivity | { |
1538 | 72e22d2f | Avi Kivity | MemoryListener *other = NULL;
|
1539 | 0d673e36 | Avi Kivity | AddressSpace *as; |
1540 | 72e22d2f | Avi Kivity | |
1541 | 7376e582 | Avi Kivity | listener->address_space_filter = filter; |
1542 | 72e22d2f | Avi Kivity | if (QTAILQ_EMPTY(&memory_listeners)
|
1543 | 72e22d2f | Avi Kivity | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
1544 | 72e22d2f | Avi Kivity | memory_listeners)->priority) { |
1545 | 72e22d2f | Avi Kivity | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
1546 | 72e22d2f | Avi Kivity | } else {
|
1547 | 72e22d2f | Avi Kivity | QTAILQ_FOREACH(other, &memory_listeners, link) { |
1548 | 72e22d2f | Avi Kivity | if (listener->priority < other->priority) {
|
1549 | 72e22d2f | Avi Kivity | break;
|
1550 | 72e22d2f | Avi Kivity | } |
1551 | 72e22d2f | Avi Kivity | } |
1552 | 72e22d2f | Avi Kivity | QTAILQ_INSERT_BEFORE(other, listener, link); |
1553 | 72e22d2f | Avi Kivity | } |
1554 | 0d673e36 | Avi Kivity | |
1555 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
1556 | 0d673e36 | Avi Kivity | listener_add_address_space(listener, as); |
1557 | 0d673e36 | Avi Kivity | } |
1558 | 7664e80c | Avi Kivity | } |
1559 | 7664e80c | Avi Kivity | |
1560 | 7664e80c | Avi Kivity | void memory_listener_unregister(MemoryListener *listener)
|
1561 | 7664e80c | Avi Kivity | { |
1562 | 72e22d2f | Avi Kivity | QTAILQ_REMOVE(&memory_listeners, listener, link); |
1563 | 86e775c6 | Avi Kivity | } |
1564 | e2177955 | Avi Kivity | |
1565 | 9ad2bbc1 | Avi Kivity | void address_space_init(AddressSpace *as, MemoryRegion *root)
|
1566 | 1c0ffa58 | Avi Kivity | { |
1567 | 59023ef4 | Jan Kiszka | memory_region_transaction_begin(); |
1568 | 8786db7c | Avi Kivity | as->root = root; |
1569 | 8786db7c | Avi Kivity | as->current_map = g_new(FlatView, 1);
|
1570 | 8786db7c | Avi Kivity | flatview_init(as->current_map); |
1571 | 0d673e36 | Avi Kivity | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
1572 | 0d673e36 | Avi Kivity | as->name = NULL;
|
1573 | 59023ef4 | Jan Kiszka | memory_region_transaction_commit(); |
1574 | ac1970fb | Avi Kivity | address_space_init_dispatch(as); |
1575 | 1c0ffa58 | Avi Kivity | } |
1576 | 658b2224 | Avi Kivity | |
1577 | 83f3c251 | Avi Kivity | void address_space_destroy(AddressSpace *as)
|
1578 | 83f3c251 | Avi Kivity | { |
1579 | 83f3c251 | Avi Kivity | /* Flush out anything from MemoryListeners listening in on this */
|
1580 | 83f3c251 | Avi Kivity | memory_region_transaction_begin(); |
1581 | 83f3c251 | Avi Kivity | as->root = NULL;
|
1582 | 83f3c251 | Avi Kivity | memory_region_transaction_commit(); |
1583 | 83f3c251 | Avi Kivity | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
1584 | 83f3c251 | Avi Kivity | address_space_destroy_dispatch(as); |
1585 | 83f3c251 | Avi Kivity | flatview_destroy(as->current_map); |
1586 | 83f3c251 | Avi Kivity | g_free(as->current_map); |
1587 | 83f3c251 | Avi Kivity | } |
1588 | 83f3c251 | Avi Kivity | |
1589 | a8170e5e | Avi Kivity | uint64_t io_mem_read(MemoryRegion *mr, hwaddr addr, unsigned size)
|
1590 | acbbec5d | Avi Kivity | { |
1591 | 37ec01d4 | Avi Kivity | return memory_region_dispatch_read(mr, addr, size);
|
1592 | acbbec5d | Avi Kivity | } |
1593 | acbbec5d | Avi Kivity | |
1594 | a8170e5e | Avi Kivity | void io_mem_write(MemoryRegion *mr, hwaddr addr,
|
1595 | acbbec5d | Avi Kivity | uint64_t val, unsigned size)
|
1596 | acbbec5d | Avi Kivity | { |
1597 | 37ec01d4 | Avi Kivity | memory_region_dispatch_write(mr, addr, val, size); |
1598 | acbbec5d | Avi Kivity | } |
1599 | acbbec5d | Avi Kivity | |
1600 | 314e2987 | Blue Swirl | typedef struct MemoryRegionList MemoryRegionList; |
1601 | 314e2987 | Blue Swirl | |
1602 | 314e2987 | Blue Swirl | struct MemoryRegionList {
|
1603 | 314e2987 | Blue Swirl | const MemoryRegion *mr;
|
1604 | 314e2987 | Blue Swirl | bool printed;
|
1605 | 314e2987 | Blue Swirl | QTAILQ_ENTRY(MemoryRegionList) queue; |
1606 | 314e2987 | Blue Swirl | }; |
1607 | 314e2987 | Blue Swirl | |
1608 | 314e2987 | Blue Swirl | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead;
|
1609 | 314e2987 | Blue Swirl | |
1610 | 314e2987 | Blue Swirl | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
1611 | 314e2987 | Blue Swirl | const MemoryRegion *mr, unsigned int level, |
1612 | a8170e5e | Avi Kivity | hwaddr base, |
1613 | 9479c57a | Jan Kiszka | MemoryRegionListHead *alias_print_queue) |
1614 | 314e2987 | Blue Swirl | { |
1615 | 9479c57a | Jan Kiszka | MemoryRegionList *new_ml, *ml, *next_ml; |
1616 | 9479c57a | Jan Kiszka | MemoryRegionListHead submr_print_queue; |
1617 | 314e2987 | Blue Swirl | const MemoryRegion *submr;
|
1618 | 314e2987 | Blue Swirl | unsigned int i; |
1619 | 314e2987 | Blue Swirl | |
1620 | 7ea692b2 | Jan Kiszka | if (!mr || !mr->enabled) {
|
1621 | 314e2987 | Blue Swirl | return;
|
1622 | 314e2987 | Blue Swirl | } |
1623 | 314e2987 | Blue Swirl | |
1624 | 314e2987 | Blue Swirl | for (i = 0; i < level; i++) { |
1625 | 314e2987 | Blue Swirl | mon_printf(f, " ");
|
1626 | 314e2987 | Blue Swirl | } |
1627 | 314e2987 | Blue Swirl | |
1628 | 314e2987 | Blue Swirl | if (mr->alias) {
|
1629 | 314e2987 | Blue Swirl | MemoryRegionList *ml; |
1630 | 314e2987 | Blue Swirl | bool found = false; |
1631 | 314e2987 | Blue Swirl | |
1632 | 314e2987 | Blue Swirl | /* check if the alias is already in the queue */
|
1633 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
1634 | 314e2987 | Blue Swirl | if (ml->mr == mr->alias && !ml->printed) {
|
1635 | 314e2987 | Blue Swirl | found = true;
|
1636 | 314e2987 | Blue Swirl | } |
1637 | 314e2987 | Blue Swirl | } |
1638 | 314e2987 | Blue Swirl | |
1639 | 314e2987 | Blue Swirl | if (!found) {
|
1640 | 314e2987 | Blue Swirl | ml = g_new(MemoryRegionList, 1);
|
1641 | 314e2987 | Blue Swirl | ml->mr = mr->alias; |
1642 | 314e2987 | Blue Swirl | ml->printed = false;
|
1643 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
1644 | 314e2987 | Blue Swirl | } |
1645 | 4896d74b | Jan Kiszka | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx
|
1646 | 4896d74b | Jan Kiszka | " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
|
1647 | 4896d74b | Jan Kiszka | "-" TARGET_FMT_plx "\n", |
1648 | 314e2987 | Blue Swirl | base + mr->addr, |
1649 | 08dafab4 | Avi Kivity | base + mr->addr |
1650 | a8170e5e | Avi Kivity | + (hwaddr)int128_get64(mr->size) - 1,
|
1651 | 4b474ba7 | Jan Kiszka | mr->priority, |
1652 | 4896d74b | Jan Kiszka | mr->readable ? 'R' : '-', |
1653 | 4896d74b | Jan Kiszka | !mr->readonly && !(mr->rom_device && mr->readable) ? 'W'
|
1654 | 4896d74b | Jan Kiszka | : '-',
|
1655 | 314e2987 | Blue Swirl | mr->name, |
1656 | 314e2987 | Blue Swirl | mr->alias->name, |
1657 | 314e2987 | Blue Swirl | mr->alias_offset, |
1658 | 08dafab4 | Avi Kivity | mr->alias_offset |
1659 | a8170e5e | Avi Kivity | + (hwaddr)int128_get64(mr->size) - 1);
|
1660 | 314e2987 | Blue Swirl | } else {
|
1661 | 4896d74b | Jan Kiszka | mon_printf(f, |
1662 | 4896d74b | Jan Kiszka | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s\n", |
1663 | 314e2987 | Blue Swirl | base + mr->addr, |
1664 | 08dafab4 | Avi Kivity | base + mr->addr |
1665 | a8170e5e | Avi Kivity | + (hwaddr)int128_get64(mr->size) - 1,
|
1666 | 4b474ba7 | Jan Kiszka | mr->priority, |
1667 | 4896d74b | Jan Kiszka | mr->readable ? 'R' : '-', |
1668 | 4896d74b | Jan Kiszka | !mr->readonly && !(mr->rom_device && mr->readable) ? 'W'
|
1669 | 4896d74b | Jan Kiszka | : '-',
|
1670 | 314e2987 | Blue Swirl | mr->name); |
1671 | 314e2987 | Blue Swirl | } |
1672 | 9479c57a | Jan Kiszka | |
1673 | 9479c57a | Jan Kiszka | QTAILQ_INIT(&submr_print_queue); |
1674 | 9479c57a | Jan Kiszka | |
1675 | 314e2987 | Blue Swirl | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
1676 | 9479c57a | Jan Kiszka | new_ml = g_new(MemoryRegionList, 1);
|
1677 | 9479c57a | Jan Kiszka | new_ml->mr = submr; |
1678 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
1679 | 9479c57a | Jan Kiszka | if (new_ml->mr->addr < ml->mr->addr ||
|
1680 | 9479c57a | Jan Kiszka | (new_ml->mr->addr == ml->mr->addr && |
1681 | 9479c57a | Jan Kiszka | new_ml->mr->priority > ml->mr->priority)) { |
1682 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
1683 | 9479c57a | Jan Kiszka | new_ml = NULL;
|
1684 | 9479c57a | Jan Kiszka | break;
|
1685 | 9479c57a | Jan Kiszka | } |
1686 | 9479c57a | Jan Kiszka | } |
1687 | 9479c57a | Jan Kiszka | if (new_ml) {
|
1688 | 9479c57a | Jan Kiszka | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
1689 | 9479c57a | Jan Kiszka | } |
1690 | 9479c57a | Jan Kiszka | } |
1691 | 9479c57a | Jan Kiszka | |
1692 | 9479c57a | Jan Kiszka | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
1693 | 9479c57a | Jan Kiszka | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr,
|
1694 | 9479c57a | Jan Kiszka | alias_print_queue); |
1695 | 9479c57a | Jan Kiszka | } |
1696 | 9479c57a | Jan Kiszka | |
1697 | 88365e47 | Avi Kivity | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
1698 | 9479c57a | Jan Kiszka | g_free(ml); |
1699 | 314e2987 | Blue Swirl | } |
1700 | 314e2987 | Blue Swirl | } |
1701 | 314e2987 | Blue Swirl | |
1702 | 314e2987 | Blue Swirl | void mtree_info(fprintf_function mon_printf, void *f) |
1703 | 314e2987 | Blue Swirl | { |
1704 | 314e2987 | Blue Swirl | MemoryRegionListHead ml_head; |
1705 | 314e2987 | Blue Swirl | MemoryRegionList *ml, *ml2; |
1706 | 0d673e36 | Avi Kivity | AddressSpace *as; |
1707 | 314e2987 | Blue Swirl | |
1708 | 314e2987 | Blue Swirl | QTAILQ_INIT(&ml_head); |
1709 | 314e2987 | Blue Swirl | |
1710 | 0d673e36 | Avi Kivity | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
1711 | 0d673e36 | Avi Kivity | if (!as->name) {
|
1712 | 0d673e36 | Avi Kivity | continue;
|
1713 | 0d673e36 | Avi Kivity | } |
1714 | 0d673e36 | Avi Kivity | mon_printf(f, "%s\n", as->name);
|
1715 | 0d673e36 | Avi Kivity | mtree_print_mr(mon_printf, f, as->root, 0, 0, &ml_head); |
1716 | b9f9be88 | Blue Swirl | } |
1717 | b9f9be88 | Blue Swirl | |
1718 | b9f9be88 | Blue Swirl | mon_printf(f, "aliases\n");
|
1719 | 314e2987 | Blue Swirl | /* print aliased regions */
|
1720 | 314e2987 | Blue Swirl | QTAILQ_FOREACH(ml, &ml_head, queue) { |
1721 | 314e2987 | Blue Swirl | if (!ml->printed) {
|
1722 | 314e2987 | Blue Swirl | mon_printf(f, "%s\n", ml->mr->name);
|
1723 | 314e2987 | Blue Swirl | mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head); |
1724 | 314e2987 | Blue Swirl | } |
1725 | 314e2987 | Blue Swirl | } |
1726 | 314e2987 | Blue Swirl | |
1727 | 314e2987 | Blue Swirl | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
1728 | 88365e47 | Avi Kivity | g_free(ml); |
1729 | 314e2987 | Blue Swirl | } |
1730 | 314e2987 | Blue Swirl | } |