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1 | 54936004 | bellard | /*
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2 | 5b6dd868 | Blue Swirl | * Virtual page mapping
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3 | 5fafdf24 | ths | *
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4 | 54936004 | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | 54936004 | bellard | *
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6 | 54936004 | bellard | * This library is free software; you can redistribute it and/or
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7 | 54936004 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | 54936004 | bellard | * License as published by the Free Software Foundation; either
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9 | 54936004 | bellard | * version 2 of the License, or (at your option) any later version.
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10 | 54936004 | bellard | *
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11 | 54936004 | bellard | * This library is distributed in the hope that it will be useful,
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12 | 54936004 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 54936004 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 54936004 | bellard | * Lesser General Public License for more details.
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15 | 54936004 | bellard | *
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16 | 54936004 | bellard | * You should have received a copy of the GNU Lesser General Public
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17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | 54936004 | bellard | */
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19 | 67b915a5 | bellard | #include "config.h" |
20 | d5a8f07c | bellard | #ifdef _WIN32
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21 | d5a8f07c | bellard | #include <windows.h> |
22 | d5a8f07c | bellard | #else
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23 | a98d49b1 | bellard | #include <sys/types.h> |
24 | d5a8f07c | bellard | #include <sys/mman.h> |
25 | d5a8f07c | bellard | #endif
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26 | 54936004 | bellard | |
27 | 055403b2 | Stefan Weil | #include "qemu-common.h" |
28 | 6180a181 | bellard | #include "cpu.h" |
29 | b67d9a52 | bellard | #include "tcg.h" |
30 | b3c7724c | pbrook | #include "hw/hw.h" |
31 | cc9e98cb | Alex Williamson | #include "hw/qdev.h" |
32 | 1de7afc9 | Paolo Bonzini | #include "qemu/osdep.h" |
33 | 9c17d615 | Paolo Bonzini | #include "sysemu/kvm.h" |
34 | 432d268c | Jun Nakajima | #include "hw/xen.h" |
35 | 1de7afc9 | Paolo Bonzini | #include "qemu/timer.h" |
36 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
37 | 022c62cb | Paolo Bonzini | #include "exec/memory.h" |
38 | 9c17d615 | Paolo Bonzini | #include "sysemu/dma.h" |
39 | 022c62cb | Paolo Bonzini | #include "exec/address-spaces.h" |
40 | 53a5960a | pbrook | #if defined(CONFIG_USER_ONLY)
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41 | 53a5960a | pbrook | #include <qemu.h> |
42 | 432d268c | Jun Nakajima | #else /* !CONFIG_USER_ONLY */ |
43 | 9c17d615 | Paolo Bonzini | #include "sysemu/xen-mapcache.h" |
44 | 6506e4f9 | Stefano Stabellini | #include "trace.h" |
45 | 53a5960a | pbrook | #endif
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46 | 0d6d3c87 | Paolo Bonzini | #include "exec/cpu-all.h" |
47 | 54936004 | bellard | |
48 | 022c62cb | Paolo Bonzini | #include "exec/cputlb.h" |
49 | 5b6dd868 | Blue Swirl | #include "translate-all.h" |
50 | 0cac1b66 | Blue Swirl | |
51 | 022c62cb | Paolo Bonzini | #include "exec/memory-internal.h" |
52 | 67d95c15 | Avi Kivity | |
53 | 67d3b957 | pbrook | //#define DEBUG_UNASSIGNED
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54 | db7b5426 | blueswir1 | //#define DEBUG_SUBPAGE
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55 | 1196be37 | ths | |
56 | 99773bd4 | pbrook | #if !defined(CONFIG_USER_ONLY)
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57 | 9fa3e853 | bellard | int phys_ram_fd;
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58 | 74576198 | aliguori | static int in_migration; |
59 | 94a6b54f | pbrook | |
60 | a3161038 | Paolo Bonzini | RAMList ram_list = { .blocks = QTAILQ_HEAD_INITIALIZER(ram_list.blocks) }; |
61 | 62152b8a | Avi Kivity | |
62 | 62152b8a | Avi Kivity | static MemoryRegion *system_memory;
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63 | 309cb471 | Avi Kivity | static MemoryRegion *system_io;
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64 | 62152b8a | Avi Kivity | |
65 | f6790af6 | Avi Kivity | AddressSpace address_space_io; |
66 | f6790af6 | Avi Kivity | AddressSpace address_space_memory; |
67 | 9e11908f | Peter Maydell | DMAContext dma_context_memory; |
68 | 2673a5da | Avi Kivity | |
69 | 0e0df1e2 | Avi Kivity | MemoryRegion io_mem_ram, io_mem_rom, io_mem_unassigned, io_mem_notdirty; |
70 | de712f94 | Avi Kivity | static MemoryRegion io_mem_subpage_ram;
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71 | 0e0df1e2 | Avi Kivity | |
72 | e2eef170 | pbrook | #endif
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73 | 9fa3e853 | bellard | |
74 | 9349b4f9 | Andreas Färber | CPUArchState *first_cpu; |
75 | 6a00d601 | bellard | /* current CPU in the current thread. It is only valid inside
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76 | 6a00d601 | bellard | cpu_exec() */
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77 | 9349b4f9 | Andreas Färber | DEFINE_TLS(CPUArchState *,cpu_single_env); |
78 | 2e70f6ef | pbrook | /* 0 = Do not count executed instructions.
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79 | bf20dc07 | ths | 1 = Precise instruction counting.
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80 | 2e70f6ef | pbrook | 2 = Adaptive rate instruction counting. */
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81 | 5708fc66 | Paolo Bonzini | int use_icount;
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82 | 6a00d601 | bellard | |
83 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
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84 | 4346ae3e | Avi Kivity | |
85 | 5312bd8b | Avi Kivity | static MemoryRegionSection *phys_sections;
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86 | 5312bd8b | Avi Kivity | static unsigned phys_sections_nb, phys_sections_nb_alloc; |
87 | 5312bd8b | Avi Kivity | static uint16_t phys_section_unassigned;
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88 | aa102231 | Avi Kivity | static uint16_t phys_section_notdirty;
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89 | aa102231 | Avi Kivity | static uint16_t phys_section_rom;
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90 | aa102231 | Avi Kivity | static uint16_t phys_section_watch;
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91 | 5312bd8b | Avi Kivity | |
92 | d6f2ea22 | Avi Kivity | /* Simple allocator for PhysPageEntry nodes */
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93 | d6f2ea22 | Avi Kivity | static PhysPageEntry (*phys_map_nodes)[L2_SIZE];
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94 | d6f2ea22 | Avi Kivity | static unsigned phys_map_nodes_nb, phys_map_nodes_nb_alloc; |
95 | d6f2ea22 | Avi Kivity | |
96 | 07f07b31 | Avi Kivity | #define PHYS_MAP_NODE_NIL (((uint16_t)~0) >> 1) |
97 | d6f2ea22 | Avi Kivity | |
98 | e2eef170 | pbrook | static void io_mem_init(void); |
99 | 62152b8a | Avi Kivity | static void memory_map_init(void); |
100 | 8b9c99d9 | Blue Swirl | static void *qemu_safe_ram_ptr(ram_addr_t addr); |
101 | e2eef170 | pbrook | |
102 | 1ec9b909 | Avi Kivity | static MemoryRegion io_mem_watch;
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103 | 6658ffb8 | pbrook | #endif
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104 | fd6ce8f6 | bellard | |
105 | 6d9a1304 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
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106 | d6f2ea22 | Avi Kivity | |
107 | f7bf5461 | Avi Kivity | static void phys_map_node_reserve(unsigned nodes) |
108 | d6f2ea22 | Avi Kivity | { |
109 | f7bf5461 | Avi Kivity | if (phys_map_nodes_nb + nodes > phys_map_nodes_nb_alloc) {
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110 | d6f2ea22 | Avi Kivity | typedef PhysPageEntry Node[L2_SIZE];
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111 | d6f2ea22 | Avi Kivity | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc * 2, 16); |
112 | f7bf5461 | Avi Kivity | phys_map_nodes_nb_alloc = MAX(phys_map_nodes_nb_alloc, |
113 | f7bf5461 | Avi Kivity | phys_map_nodes_nb + nodes); |
114 | d6f2ea22 | Avi Kivity | phys_map_nodes = g_renew(Node, phys_map_nodes, |
115 | d6f2ea22 | Avi Kivity | phys_map_nodes_nb_alloc); |
116 | d6f2ea22 | Avi Kivity | } |
117 | f7bf5461 | Avi Kivity | } |
118 | f7bf5461 | Avi Kivity | |
119 | f7bf5461 | Avi Kivity | static uint16_t phys_map_node_alloc(void) |
120 | f7bf5461 | Avi Kivity | { |
121 | f7bf5461 | Avi Kivity | unsigned i;
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122 | f7bf5461 | Avi Kivity | uint16_t ret; |
123 | f7bf5461 | Avi Kivity | |
124 | f7bf5461 | Avi Kivity | ret = phys_map_nodes_nb++; |
125 | f7bf5461 | Avi Kivity | assert(ret != PHYS_MAP_NODE_NIL); |
126 | f7bf5461 | Avi Kivity | assert(ret != phys_map_nodes_nb_alloc); |
127 | d6f2ea22 | Avi Kivity | for (i = 0; i < L2_SIZE; ++i) { |
128 | 07f07b31 | Avi Kivity | phys_map_nodes[ret][i].is_leaf = 0;
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129 | c19e8800 | Avi Kivity | phys_map_nodes[ret][i].ptr = PHYS_MAP_NODE_NIL; |
130 | d6f2ea22 | Avi Kivity | } |
131 | f7bf5461 | Avi Kivity | return ret;
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132 | d6f2ea22 | Avi Kivity | } |
133 | d6f2ea22 | Avi Kivity | |
134 | d6f2ea22 | Avi Kivity | static void phys_map_nodes_reset(void) |
135 | d6f2ea22 | Avi Kivity | { |
136 | d6f2ea22 | Avi Kivity | phys_map_nodes_nb = 0;
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137 | d6f2ea22 | Avi Kivity | } |
138 | d6f2ea22 | Avi Kivity | |
139 | 92e873b9 | bellard | |
140 | a8170e5e | Avi Kivity | static void phys_page_set_level(PhysPageEntry *lp, hwaddr *index, |
141 | a8170e5e | Avi Kivity | hwaddr *nb, uint16_t leaf, |
142 | 2999097b | Avi Kivity | int level)
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143 | f7bf5461 | Avi Kivity | { |
144 | f7bf5461 | Avi Kivity | PhysPageEntry *p; |
145 | f7bf5461 | Avi Kivity | int i;
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146 | a8170e5e | Avi Kivity | hwaddr step = (hwaddr)1 << (level * L2_BITS);
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147 | 108c49b8 | bellard | |
148 | 07f07b31 | Avi Kivity | if (!lp->is_leaf && lp->ptr == PHYS_MAP_NODE_NIL) {
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149 | c19e8800 | Avi Kivity | lp->ptr = phys_map_node_alloc(); |
150 | c19e8800 | Avi Kivity | p = phys_map_nodes[lp->ptr]; |
151 | f7bf5461 | Avi Kivity | if (level == 0) { |
152 | f7bf5461 | Avi Kivity | for (i = 0; i < L2_SIZE; i++) { |
153 | 07f07b31 | Avi Kivity | p[i].is_leaf = 1;
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154 | c19e8800 | Avi Kivity | p[i].ptr = phys_section_unassigned; |
155 | 4346ae3e | Avi Kivity | } |
156 | 67c4d23c | pbrook | } |
157 | f7bf5461 | Avi Kivity | } else {
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158 | c19e8800 | Avi Kivity | p = phys_map_nodes[lp->ptr]; |
159 | 92e873b9 | bellard | } |
160 | 2999097b | Avi Kivity | lp = &p[(*index >> (level * L2_BITS)) & (L2_SIZE - 1)];
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161 | f7bf5461 | Avi Kivity | |
162 | 2999097b | Avi Kivity | while (*nb && lp < &p[L2_SIZE]) {
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163 | 07f07b31 | Avi Kivity | if ((*index & (step - 1)) == 0 && *nb >= step) { |
164 | 07f07b31 | Avi Kivity | lp->is_leaf = true;
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165 | c19e8800 | Avi Kivity | lp->ptr = leaf; |
166 | 07f07b31 | Avi Kivity | *index += step; |
167 | 07f07b31 | Avi Kivity | *nb -= step; |
168 | 2999097b | Avi Kivity | } else {
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169 | 2999097b | Avi Kivity | phys_page_set_level(lp, index, nb, leaf, level - 1);
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170 | 2999097b | Avi Kivity | } |
171 | 2999097b | Avi Kivity | ++lp; |
172 | f7bf5461 | Avi Kivity | } |
173 | f7bf5461 | Avi Kivity | } |
174 | f7bf5461 | Avi Kivity | |
175 | ac1970fb | Avi Kivity | static void phys_page_set(AddressSpaceDispatch *d, |
176 | a8170e5e | Avi Kivity | hwaddr index, hwaddr nb, |
177 | 2999097b | Avi Kivity | uint16_t leaf) |
178 | f7bf5461 | Avi Kivity | { |
179 | 2999097b | Avi Kivity | /* Wildly overreserve - it doesn't matter much. */
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180 | 07f07b31 | Avi Kivity | phys_map_node_reserve(3 * P_L2_LEVELS);
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181 | 5cd2c5b6 | Richard Henderson | |
182 | ac1970fb | Avi Kivity | phys_page_set_level(&d->phys_map, &index, &nb, leaf, P_L2_LEVELS - 1);
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183 | 92e873b9 | bellard | } |
184 | 92e873b9 | bellard | |
185 | a8170e5e | Avi Kivity | MemoryRegionSection *phys_page_find(AddressSpaceDispatch *d, hwaddr index) |
186 | 92e873b9 | bellard | { |
187 | ac1970fb | Avi Kivity | PhysPageEntry lp = d->phys_map; |
188 | 31ab2b4a | Avi Kivity | PhysPageEntry *p; |
189 | 31ab2b4a | Avi Kivity | int i;
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190 | 31ab2b4a | Avi Kivity | uint16_t s_index = phys_section_unassigned; |
191 | f1f6e3b8 | Avi Kivity | |
192 | 07f07b31 | Avi Kivity | for (i = P_L2_LEVELS - 1; i >= 0 && !lp.is_leaf; i--) { |
193 | c19e8800 | Avi Kivity | if (lp.ptr == PHYS_MAP_NODE_NIL) {
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194 | 31ab2b4a | Avi Kivity | goto not_found;
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195 | 31ab2b4a | Avi Kivity | } |
196 | c19e8800 | Avi Kivity | p = phys_map_nodes[lp.ptr]; |
197 | 31ab2b4a | Avi Kivity | lp = p[(index >> (i * L2_BITS)) & (L2_SIZE - 1)];
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198 | 5312bd8b | Avi Kivity | } |
199 | 31ab2b4a | Avi Kivity | |
200 | c19e8800 | Avi Kivity | s_index = lp.ptr; |
201 | 31ab2b4a | Avi Kivity | not_found:
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202 | f3705d53 | Avi Kivity | return &phys_sections[s_index];
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203 | f3705d53 | Avi Kivity | } |
204 | f3705d53 | Avi Kivity | |
205 | e5548617 | Blue Swirl | bool memory_region_is_unassigned(MemoryRegion *mr)
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206 | e5548617 | Blue Swirl | { |
207 | e5548617 | Blue Swirl | return mr != &io_mem_ram && mr != &io_mem_rom
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208 | e5548617 | Blue Swirl | && mr != &io_mem_notdirty && !mr->rom_device |
209 | 5b6dd868 | Blue Swirl | && mr != &io_mem_watch; |
210 | fd6ce8f6 | bellard | } |
211 | 5b6dd868 | Blue Swirl | #endif
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212 | fd6ce8f6 | bellard | |
213 | 5b6dd868 | Blue Swirl | void cpu_exec_init_all(void) |
214 | fdbb84d1 | Yeongkyoon Lee | { |
215 | 5b6dd868 | Blue Swirl | #if !defined(CONFIG_USER_ONLY)
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216 | b2a8658e | Umesh Deshpande | qemu_mutex_init(&ram_list.mutex); |
217 | 5b6dd868 | Blue Swirl | memory_map_init(); |
218 | 5b6dd868 | Blue Swirl | io_mem_init(); |
219 | fdbb84d1 | Yeongkyoon Lee | #endif
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220 | 5b6dd868 | Blue Swirl | } |
221 | fdbb84d1 | Yeongkyoon Lee | |
222 | 5b6dd868 | Blue Swirl | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
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223 | 5b6dd868 | Blue Swirl | |
224 | 5b6dd868 | Blue Swirl | static int cpu_common_post_load(void *opaque, int version_id) |
225 | fd6ce8f6 | bellard | { |
226 | 5b6dd868 | Blue Swirl | CPUArchState *env = opaque; |
227 | a513fe19 | bellard | |
228 | 5b6dd868 | Blue Swirl | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
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229 | 5b6dd868 | Blue Swirl | version_id is increased. */
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230 | 5b6dd868 | Blue Swirl | env->interrupt_request &= ~0x01;
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231 | 5b6dd868 | Blue Swirl | tlb_flush(env, 1);
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232 | 5b6dd868 | Blue Swirl | |
233 | 5b6dd868 | Blue Swirl | return 0; |
234 | a513fe19 | bellard | } |
235 | 7501267e | bellard | |
236 | 5b6dd868 | Blue Swirl | static const VMStateDescription vmstate_cpu_common = { |
237 | 5b6dd868 | Blue Swirl | .name = "cpu_common",
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238 | 5b6dd868 | Blue Swirl | .version_id = 1,
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239 | 5b6dd868 | Blue Swirl | .minimum_version_id = 1,
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240 | 5b6dd868 | Blue Swirl | .minimum_version_id_old = 1,
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241 | 5b6dd868 | Blue Swirl | .post_load = cpu_common_post_load, |
242 | 5b6dd868 | Blue Swirl | .fields = (VMStateField []) { |
243 | 5b6dd868 | Blue Swirl | VMSTATE_UINT32(halted, CPUArchState), |
244 | 5b6dd868 | Blue Swirl | VMSTATE_UINT32(interrupt_request, CPUArchState), |
245 | 5b6dd868 | Blue Swirl | VMSTATE_END_OF_LIST() |
246 | 5b6dd868 | Blue Swirl | } |
247 | 5b6dd868 | Blue Swirl | }; |
248 | 5b6dd868 | Blue Swirl | #endif
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249 | ea041c0e | bellard | |
250 | 5b6dd868 | Blue Swirl | CPUArchState *qemu_get_cpu(int cpu)
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251 | ea041c0e | bellard | { |
252 | 5b6dd868 | Blue Swirl | CPUArchState *env = first_cpu; |
253 | ea041c0e | bellard | |
254 | 5b6dd868 | Blue Swirl | while (env) {
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255 | 5b6dd868 | Blue Swirl | if (env->cpu_index == cpu)
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256 | 5b6dd868 | Blue Swirl | break;
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257 | 5b6dd868 | Blue Swirl | env = env->next_cpu; |
258 | ea041c0e | bellard | } |
259 | 5b6dd868 | Blue Swirl | |
260 | 5b6dd868 | Blue Swirl | return env;
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261 | ea041c0e | bellard | } |
262 | ea041c0e | bellard | |
263 | 5b6dd868 | Blue Swirl | void cpu_exec_init(CPUArchState *env)
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264 | ea041c0e | bellard | { |
265 | 5b6dd868 | Blue Swirl | #ifndef CONFIG_USER_ONLY
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266 | 5b6dd868 | Blue Swirl | CPUState *cpu = ENV_GET_CPU(env); |
267 | 5b6dd868 | Blue Swirl | #endif
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268 | 5b6dd868 | Blue Swirl | CPUArchState **penv; |
269 | 5b6dd868 | Blue Swirl | int cpu_index;
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270 | 5b6dd868 | Blue Swirl | |
271 | 5b6dd868 | Blue Swirl | #if defined(CONFIG_USER_ONLY)
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272 | 5b6dd868 | Blue Swirl | cpu_list_lock(); |
273 | 5b6dd868 | Blue Swirl | #endif
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274 | 5b6dd868 | Blue Swirl | env->next_cpu = NULL;
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275 | 5b6dd868 | Blue Swirl | penv = &first_cpu; |
276 | 5b6dd868 | Blue Swirl | cpu_index = 0;
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277 | 5b6dd868 | Blue Swirl | while (*penv != NULL) { |
278 | 5b6dd868 | Blue Swirl | penv = &(*penv)->next_cpu; |
279 | 5b6dd868 | Blue Swirl | cpu_index++; |
280 | 5b6dd868 | Blue Swirl | } |
281 | 5b6dd868 | Blue Swirl | env->cpu_index = cpu_index; |
282 | 5b6dd868 | Blue Swirl | env->numa_node = 0;
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283 | 5b6dd868 | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
284 | 5b6dd868 | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
285 | 5b6dd868 | Blue Swirl | #ifndef CONFIG_USER_ONLY
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286 | 5b6dd868 | Blue Swirl | cpu->thread_id = qemu_get_thread_id(); |
287 | 5b6dd868 | Blue Swirl | #endif
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288 | 5b6dd868 | Blue Swirl | *penv = env; |
289 | 5b6dd868 | Blue Swirl | #if defined(CONFIG_USER_ONLY)
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290 | 5b6dd868 | Blue Swirl | cpu_list_unlock(); |
291 | 5b6dd868 | Blue Swirl | #endif
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292 | 5b6dd868 | Blue Swirl | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
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293 | 5b6dd868 | Blue Swirl | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env);
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294 | 5b6dd868 | Blue Swirl | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, |
295 | 5b6dd868 | Blue Swirl | cpu_save, cpu_load, env); |
296 | 5b6dd868 | Blue Swirl | #endif
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297 | ea041c0e | bellard | } |
298 | ea041c0e | bellard | |
299 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
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300 | 94df27fd | Paul Brook | #if defined(CONFIG_USER_ONLY)
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301 | 9349b4f9 | Andreas Färber | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
302 | 94df27fd | Paul Brook | { |
303 | 94df27fd | Paul Brook | tb_invalidate_phys_page_range(pc, pc + 1, 0); |
304 | 94df27fd | Paul Brook | } |
305 | 94df27fd | Paul Brook | #else
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306 | 1e7855a5 | Max Filippov | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
307 | 1e7855a5 | Max Filippov | { |
308 | 9d70c4b7 | Max Filippov | tb_invalidate_phys_addr(cpu_get_phys_page_debug(env, pc) | |
309 | 9d70c4b7 | Max Filippov | (pc & ~TARGET_PAGE_MASK)); |
310 | 1e7855a5 | Max Filippov | } |
311 | c27004ec | bellard | #endif
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312 | 94df27fd | Paul Brook | #endif /* TARGET_HAS_ICE */ |
313 | d720b93d | bellard | |
314 | c527ee8f | Paul Brook | #if defined(CONFIG_USER_ONLY)
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315 | 9349b4f9 | Andreas Färber | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
316 | c527ee8f | Paul Brook | |
317 | c527ee8f | Paul Brook | { |
318 | c527ee8f | Paul Brook | } |
319 | c527ee8f | Paul Brook | |
320 | 9349b4f9 | Andreas Färber | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len,
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321 | c527ee8f | Paul Brook | int flags, CPUWatchpoint **watchpoint)
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322 | c527ee8f | Paul Brook | { |
323 | c527ee8f | Paul Brook | return -ENOSYS;
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324 | c527ee8f | Paul Brook | } |
325 | c527ee8f | Paul Brook | #else
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326 | 6658ffb8 | pbrook | /* Add a watchpoint. */
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327 | 9349b4f9 | Andreas Färber | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len,
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328 | a1d1bb31 | aliguori | int flags, CPUWatchpoint **watchpoint)
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329 | 6658ffb8 | pbrook | { |
330 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
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331 | c0ce998e | aliguori | CPUWatchpoint *wp; |
332 | 6658ffb8 | pbrook | |
333 | b4051334 | aliguori | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */
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334 | 0dc23828 | Max Filippov | if ((len & (len - 1)) || (addr & ~len_mask) || |
335 | 0dc23828 | Max Filippov | len == 0 || len > TARGET_PAGE_SIZE) {
|
336 | b4051334 | aliguori | fprintf(stderr, "qemu: tried to set invalid watchpoint at "
|
337 | b4051334 | aliguori | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
338 | b4051334 | aliguori | return -EINVAL;
|
339 | b4051334 | aliguori | } |
340 | 7267c094 | Anthony Liguori | wp = g_malloc(sizeof(*wp));
|
341 | a1d1bb31 | aliguori | |
342 | a1d1bb31 | aliguori | wp->vaddr = addr; |
343 | b4051334 | aliguori | wp->len_mask = len_mask; |
344 | a1d1bb31 | aliguori | wp->flags = flags; |
345 | a1d1bb31 | aliguori | |
346 | 2dc9f411 | aliguori | /* keep all GDB-injected watchpoints in front */
|
347 | c0ce998e | aliguori | if (flags & BP_GDB)
|
348 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
349 | c0ce998e | aliguori | else
|
350 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
351 | 6658ffb8 | pbrook | |
352 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
353 | a1d1bb31 | aliguori | |
354 | a1d1bb31 | aliguori | if (watchpoint)
|
355 | a1d1bb31 | aliguori | *watchpoint = wp; |
356 | a1d1bb31 | aliguori | return 0; |
357 | 6658ffb8 | pbrook | } |
358 | 6658ffb8 | pbrook | |
359 | a1d1bb31 | aliguori | /* Remove a specific watchpoint. */
|
360 | 9349b4f9 | Andreas Färber | int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len,
|
361 | a1d1bb31 | aliguori | int flags)
|
362 | 6658ffb8 | pbrook | { |
363 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
364 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
365 | 6658ffb8 | pbrook | |
366 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
367 | b4051334 | aliguori | if (addr == wp->vaddr && len_mask == wp->len_mask
|
368 | 6e140f28 | aliguori | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
369 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
370 | 6658ffb8 | pbrook | return 0; |
371 | 6658ffb8 | pbrook | } |
372 | 6658ffb8 | pbrook | } |
373 | a1d1bb31 | aliguori | return -ENOENT;
|
374 | 6658ffb8 | pbrook | } |
375 | 6658ffb8 | pbrook | |
376 | a1d1bb31 | aliguori | /* Remove a specific watchpoint by reference. */
|
377 | 9349b4f9 | Andreas Färber | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint)
|
378 | a1d1bb31 | aliguori | { |
379 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
380 | 7d03f82f | edgar_igl | |
381 | a1d1bb31 | aliguori | tlb_flush_page(env, watchpoint->vaddr); |
382 | a1d1bb31 | aliguori | |
383 | 7267c094 | Anthony Liguori | g_free(watchpoint); |
384 | a1d1bb31 | aliguori | } |
385 | a1d1bb31 | aliguori | |
386 | a1d1bb31 | aliguori | /* Remove all matching watchpoints. */
|
387 | 9349b4f9 | Andreas Färber | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
388 | a1d1bb31 | aliguori | { |
389 | c0ce998e | aliguori | CPUWatchpoint *wp, *next; |
390 | a1d1bb31 | aliguori | |
391 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
392 | a1d1bb31 | aliguori | if (wp->flags & mask)
|
393 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
394 | c0ce998e | aliguori | } |
395 | 7d03f82f | edgar_igl | } |
396 | c527ee8f | Paul Brook | #endif
|
397 | 7d03f82f | edgar_igl | |
398 | a1d1bb31 | aliguori | /* Add a breakpoint. */
|
399 | 9349b4f9 | Andreas Färber | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
400 | a1d1bb31 | aliguori | CPUBreakpoint **breakpoint) |
401 | 4c3a88a2 | bellard | { |
402 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
403 | c0ce998e | aliguori | CPUBreakpoint *bp; |
404 | 3b46e624 | ths | |
405 | 7267c094 | Anthony Liguori | bp = g_malloc(sizeof(*bp));
|
406 | 4c3a88a2 | bellard | |
407 | a1d1bb31 | aliguori | bp->pc = pc; |
408 | a1d1bb31 | aliguori | bp->flags = flags; |
409 | a1d1bb31 | aliguori | |
410 | 2dc9f411 | aliguori | /* keep all GDB-injected breakpoints in front */
|
411 | c0ce998e | aliguori | if (flags & BP_GDB)
|
412 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
413 | c0ce998e | aliguori | else
|
414 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
415 | 3b46e624 | ths | |
416 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
417 | a1d1bb31 | aliguori | |
418 | a1d1bb31 | aliguori | if (breakpoint)
|
419 | a1d1bb31 | aliguori | *breakpoint = bp; |
420 | 4c3a88a2 | bellard | return 0; |
421 | 4c3a88a2 | bellard | #else
|
422 | a1d1bb31 | aliguori | return -ENOSYS;
|
423 | 4c3a88a2 | bellard | #endif
|
424 | 4c3a88a2 | bellard | } |
425 | 4c3a88a2 | bellard | |
426 | a1d1bb31 | aliguori | /* Remove a specific breakpoint. */
|
427 | 9349b4f9 | Andreas Färber | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
428 | a1d1bb31 | aliguori | { |
429 | 7d03f82f | edgar_igl | #if defined(TARGET_HAS_ICE)
|
430 | a1d1bb31 | aliguori | CPUBreakpoint *bp; |
431 | a1d1bb31 | aliguori | |
432 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
433 | a1d1bb31 | aliguori | if (bp->pc == pc && bp->flags == flags) {
|
434 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
435 | a1d1bb31 | aliguori | return 0; |
436 | a1d1bb31 | aliguori | } |
437 | 7d03f82f | edgar_igl | } |
438 | a1d1bb31 | aliguori | return -ENOENT;
|
439 | a1d1bb31 | aliguori | #else
|
440 | a1d1bb31 | aliguori | return -ENOSYS;
|
441 | 7d03f82f | edgar_igl | #endif
|
442 | 7d03f82f | edgar_igl | } |
443 | 7d03f82f | edgar_igl | |
444 | a1d1bb31 | aliguori | /* Remove a specific breakpoint by reference. */
|
445 | 9349b4f9 | Andreas Färber | void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint)
|
446 | 4c3a88a2 | bellard | { |
447 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
448 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
449 | d720b93d | bellard | |
450 | a1d1bb31 | aliguori | breakpoint_invalidate(env, breakpoint->pc); |
451 | a1d1bb31 | aliguori | |
452 | 7267c094 | Anthony Liguori | g_free(breakpoint); |
453 | a1d1bb31 | aliguori | #endif
|
454 | a1d1bb31 | aliguori | } |
455 | a1d1bb31 | aliguori | |
456 | a1d1bb31 | aliguori | /* Remove all matching breakpoints. */
|
457 | 9349b4f9 | Andreas Färber | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
458 | a1d1bb31 | aliguori | { |
459 | a1d1bb31 | aliguori | #if defined(TARGET_HAS_ICE)
|
460 | c0ce998e | aliguori | CPUBreakpoint *bp, *next; |
461 | a1d1bb31 | aliguori | |
462 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
463 | a1d1bb31 | aliguori | if (bp->flags & mask)
|
464 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
465 | c0ce998e | aliguori | } |
466 | 4c3a88a2 | bellard | #endif
|
467 | 4c3a88a2 | bellard | } |
468 | 4c3a88a2 | bellard | |
469 | c33a346e | bellard | /* enable or disable single step mode. EXCP_DEBUG is returned by the
|
470 | c33a346e | bellard | CPU loop after each instruction */
|
471 | 9349b4f9 | Andreas Färber | void cpu_single_step(CPUArchState *env, int enabled) |
472 | c33a346e | bellard | { |
473 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
474 | c33a346e | bellard | if (env->singlestep_enabled != enabled) {
|
475 | c33a346e | bellard | env->singlestep_enabled = enabled; |
476 | e22a25c9 | aliguori | if (kvm_enabled())
|
477 | e22a25c9 | aliguori | kvm_update_guest_debug(env, 0);
|
478 | e22a25c9 | aliguori | else {
|
479 | ccbb4d44 | Stuart Brady | /* must flush all the translated code to avoid inconsistencies */
|
480 | e22a25c9 | aliguori | /* XXX: only flush what is necessary */
|
481 | e22a25c9 | aliguori | tb_flush(env); |
482 | e22a25c9 | aliguori | } |
483 | c33a346e | bellard | } |
484 | c33a346e | bellard | #endif
|
485 | c33a346e | bellard | } |
486 | c33a346e | bellard | |
487 | 9349b4f9 | Andreas Färber | void cpu_reset_interrupt(CPUArchState *env, int mask) |
488 | b54ad049 | bellard | { |
489 | b54ad049 | bellard | env->interrupt_request &= ~mask; |
490 | b54ad049 | bellard | } |
491 | b54ad049 | bellard | |
492 | 9349b4f9 | Andreas Färber | void cpu_exit(CPUArchState *env)
|
493 | 3098dba0 | aurel32 | { |
494 | 3098dba0 | aurel32 | env->exit_request = 1;
|
495 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
496 | 3098dba0 | aurel32 | } |
497 | 3098dba0 | aurel32 | |
498 | 9349b4f9 | Andreas Färber | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
499 | 7501267e | bellard | { |
500 | 7501267e | bellard | va_list ap; |
501 | 493ae1f0 | pbrook | va_list ap2; |
502 | 7501267e | bellard | |
503 | 7501267e | bellard | va_start(ap, fmt); |
504 | 493ae1f0 | pbrook | va_copy(ap2, ap); |
505 | 7501267e | bellard | fprintf(stderr, "qemu: fatal: ");
|
506 | 7501267e | bellard | vfprintf(stderr, fmt, ap); |
507 | 7501267e | bellard | fprintf(stderr, "\n");
|
508 | 6fd2a026 | Peter Maydell | cpu_dump_state(env, stderr, fprintf, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
509 | 93fcfe39 | aliguori | if (qemu_log_enabled()) {
|
510 | 93fcfe39 | aliguori | qemu_log("qemu: fatal: ");
|
511 | 93fcfe39 | aliguori | qemu_log_vprintf(fmt, ap2); |
512 | 93fcfe39 | aliguori | qemu_log("\n");
|
513 | 6fd2a026 | Peter Maydell | log_cpu_state(env, CPU_DUMP_FPU | CPU_DUMP_CCOP); |
514 | 31b1a7b4 | aliguori | qemu_log_flush(); |
515 | 93fcfe39 | aliguori | qemu_log_close(); |
516 | 924edcae | balrog | } |
517 | 493ae1f0 | pbrook | va_end(ap2); |
518 | f9373291 | j_mayer | va_end(ap); |
519 | fd052bf6 | Riku Voipio | #if defined(CONFIG_USER_ONLY)
|
520 | fd052bf6 | Riku Voipio | { |
521 | fd052bf6 | Riku Voipio | struct sigaction act;
|
522 | fd052bf6 | Riku Voipio | sigfillset(&act.sa_mask); |
523 | fd052bf6 | Riku Voipio | act.sa_handler = SIG_DFL; |
524 | fd052bf6 | Riku Voipio | sigaction(SIGABRT, &act, NULL);
|
525 | fd052bf6 | Riku Voipio | } |
526 | fd052bf6 | Riku Voipio | #endif
|
527 | 7501267e | bellard | abort(); |
528 | 7501267e | bellard | } |
529 | 7501267e | bellard | |
530 | 9349b4f9 | Andreas Färber | CPUArchState *cpu_copy(CPUArchState *env) |
531 | c5be9f08 | ths | { |
532 | 9349b4f9 | Andreas Färber | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
533 | 9349b4f9 | Andreas Färber | CPUArchState *next_cpu = new_env->next_cpu; |
534 | c5be9f08 | ths | int cpu_index = new_env->cpu_index;
|
535 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
536 | 5a38f081 | aliguori | CPUBreakpoint *bp; |
537 | 5a38f081 | aliguori | CPUWatchpoint *wp; |
538 | 5a38f081 | aliguori | #endif
|
539 | 5a38f081 | aliguori | |
540 | 9349b4f9 | Andreas Färber | memcpy(new_env, env, sizeof(CPUArchState));
|
541 | 5a38f081 | aliguori | |
542 | 5a38f081 | aliguori | /* Preserve chaining and index. */
|
543 | c5be9f08 | ths | new_env->next_cpu = next_cpu; |
544 | c5be9f08 | ths | new_env->cpu_index = cpu_index; |
545 | 5a38f081 | aliguori | |
546 | 5a38f081 | aliguori | /* Clone all break/watchpoints.
|
547 | 5a38f081 | aliguori | Note: Once we support ptrace with hw-debug register access, make sure
|
548 | 5a38f081 | aliguori | BP_CPU break/watchpoints are handled correctly on clone. */
|
549 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
550 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
551 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
552 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
553 | 5a38f081 | aliguori | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
|
554 | 5a38f081 | aliguori | } |
555 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
556 | 5a38f081 | aliguori | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
|
557 | 5a38f081 | aliguori | wp->flags, NULL);
|
558 | 5a38f081 | aliguori | } |
559 | 5a38f081 | aliguori | #endif
|
560 | 5a38f081 | aliguori | |
561 | c5be9f08 | ths | return new_env;
|
562 | c5be9f08 | ths | } |
563 | c5be9f08 | ths | |
564 | 0124311e | bellard | #if !defined(CONFIG_USER_ONLY)
|
565 | d24981d3 | Juan Quintela | static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t end, |
566 | d24981d3 | Juan Quintela | uintptr_t length) |
567 | d24981d3 | Juan Quintela | { |
568 | d24981d3 | Juan Quintela | uintptr_t start1; |
569 | d24981d3 | Juan Quintela | |
570 | d24981d3 | Juan Quintela | /* we modify the TLB cache so that the dirty bit will be set again
|
571 | d24981d3 | Juan Quintela | when accessing the range */
|
572 | d24981d3 | Juan Quintela | start1 = (uintptr_t)qemu_safe_ram_ptr(start); |
573 | d24981d3 | Juan Quintela | /* Check that we don't span multiple blocks - this breaks the
|
574 | d24981d3 | Juan Quintela | address comparisons below. */
|
575 | d24981d3 | Juan Quintela | if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1 |
576 | d24981d3 | Juan Quintela | != (end - 1) - start) {
|
577 | d24981d3 | Juan Quintela | abort(); |
578 | d24981d3 | Juan Quintela | } |
579 | d24981d3 | Juan Quintela | cpu_tlb_reset_dirty_all(start1, length); |
580 | d24981d3 | Juan Quintela | |
581 | d24981d3 | Juan Quintela | } |
582 | d24981d3 | Juan Quintela | |
583 | 5579c7f3 | pbrook | /* Note: start and end must be within the same ram block. */
|
584 | c227f099 | Anthony Liguori | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
585 | 0a962c02 | bellard | int dirty_flags)
|
586 | 1ccde1cb | bellard | { |
587 | d24981d3 | Juan Quintela | uintptr_t length; |
588 | 1ccde1cb | bellard | |
589 | 1ccde1cb | bellard | start &= TARGET_PAGE_MASK; |
590 | 1ccde1cb | bellard | end = TARGET_PAGE_ALIGN(end); |
591 | 1ccde1cb | bellard | |
592 | 1ccde1cb | bellard | length = end - start; |
593 | 1ccde1cb | bellard | if (length == 0) |
594 | 1ccde1cb | bellard | return;
|
595 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
596 | f23db169 | bellard | |
597 | d24981d3 | Juan Quintela | if (tcg_enabled()) {
|
598 | d24981d3 | Juan Quintela | tlb_reset_dirty_range_all(start, end, length); |
599 | 5579c7f3 | pbrook | } |
600 | 1ccde1cb | bellard | } |
601 | 1ccde1cb | bellard | |
602 | 8b9c99d9 | Blue Swirl | static int cpu_physical_memory_set_dirty_tracking(int enable) |
603 | 74576198 | aliguori | { |
604 | f6f3fbca | Michael S. Tsirkin | int ret = 0; |
605 | 74576198 | aliguori | in_migration = enable; |
606 | f6f3fbca | Michael S. Tsirkin | return ret;
|
607 | 74576198 | aliguori | } |
608 | 74576198 | aliguori | |
609 | a8170e5e | Avi Kivity | hwaddr memory_region_section_get_iotlb(CPUArchState *env, |
610 | e5548617 | Blue Swirl | MemoryRegionSection *section, |
611 | e5548617 | Blue Swirl | target_ulong vaddr, |
612 | a8170e5e | Avi Kivity | hwaddr paddr, |
613 | e5548617 | Blue Swirl | int prot,
|
614 | e5548617 | Blue Swirl | target_ulong *address) |
615 | e5548617 | Blue Swirl | { |
616 | a8170e5e | Avi Kivity | hwaddr iotlb; |
617 | e5548617 | Blue Swirl | CPUWatchpoint *wp; |
618 | e5548617 | Blue Swirl | |
619 | cc5bea60 | Blue Swirl | if (memory_region_is_ram(section->mr)) {
|
620 | e5548617 | Blue Swirl | /* Normal RAM. */
|
621 | e5548617 | Blue Swirl | iotlb = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
622 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, paddr); |
623 | e5548617 | Blue Swirl | if (!section->readonly) {
|
624 | e5548617 | Blue Swirl | iotlb |= phys_section_notdirty; |
625 | e5548617 | Blue Swirl | } else {
|
626 | e5548617 | Blue Swirl | iotlb |= phys_section_rom; |
627 | e5548617 | Blue Swirl | } |
628 | e5548617 | Blue Swirl | } else {
|
629 | e5548617 | Blue Swirl | /* IO handlers are currently passed a physical address.
|
630 | e5548617 | Blue Swirl | It would be nice to pass an offset from the base address
|
631 | e5548617 | Blue Swirl | of that region. This would avoid having to special case RAM,
|
632 | e5548617 | Blue Swirl | and avoid full address decoding in every device.
|
633 | e5548617 | Blue Swirl | We can't use the high bits of pd for this because
|
634 | e5548617 | Blue Swirl | IO_MEM_ROMD uses these as a ram address. */
|
635 | e5548617 | Blue Swirl | iotlb = section - phys_sections; |
636 | cc5bea60 | Blue Swirl | iotlb += memory_region_section_addr(section, paddr); |
637 | e5548617 | Blue Swirl | } |
638 | e5548617 | Blue Swirl | |
639 | e5548617 | Blue Swirl | /* Make accesses to pages with watchpoints go via the
|
640 | e5548617 | Blue Swirl | watchpoint trap routines. */
|
641 | e5548617 | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
642 | e5548617 | Blue Swirl | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) {
|
643 | e5548617 | Blue Swirl | /* Avoid trapping reads of pages with a write breakpoint. */
|
644 | e5548617 | Blue Swirl | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) {
|
645 | e5548617 | Blue Swirl | iotlb = phys_section_watch + paddr; |
646 | e5548617 | Blue Swirl | *address |= TLB_MMIO; |
647 | e5548617 | Blue Swirl | break;
|
648 | e5548617 | Blue Swirl | } |
649 | e5548617 | Blue Swirl | } |
650 | e5548617 | Blue Swirl | } |
651 | e5548617 | Blue Swirl | |
652 | e5548617 | Blue Swirl | return iotlb;
|
653 | e5548617 | Blue Swirl | } |
654 | 9fa3e853 | bellard | #endif /* defined(CONFIG_USER_ONLY) */ |
655 | 9fa3e853 | bellard | |
656 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
657 | 8da3ff18 | pbrook | |
658 | c04b2b78 | Paul Brook | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK)
|
659 | c04b2b78 | Paul Brook | typedef struct subpage_t { |
660 | 70c68e44 | Avi Kivity | MemoryRegion iomem; |
661 | a8170e5e | Avi Kivity | hwaddr base; |
662 | 5312bd8b | Avi Kivity | uint16_t sub_section[TARGET_PAGE_SIZE]; |
663 | c04b2b78 | Paul Brook | } subpage_t; |
664 | c04b2b78 | Paul Brook | |
665 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
666 | 5312bd8b | Avi Kivity | uint16_t section); |
667 | a8170e5e | Avi Kivity | static subpage_t *subpage_init(hwaddr base);
|
668 | 5312bd8b | Avi Kivity | static void destroy_page_desc(uint16_t section_index) |
669 | 54688b1e | Avi Kivity | { |
670 | 5312bd8b | Avi Kivity | MemoryRegionSection *section = &phys_sections[section_index]; |
671 | 5312bd8b | Avi Kivity | MemoryRegion *mr = section->mr; |
672 | 54688b1e | Avi Kivity | |
673 | 54688b1e | Avi Kivity | if (mr->subpage) {
|
674 | 54688b1e | Avi Kivity | subpage_t *subpage = container_of(mr, subpage_t, iomem); |
675 | 54688b1e | Avi Kivity | memory_region_destroy(&subpage->iomem); |
676 | 54688b1e | Avi Kivity | g_free(subpage); |
677 | 54688b1e | Avi Kivity | } |
678 | 54688b1e | Avi Kivity | } |
679 | 54688b1e | Avi Kivity | |
680 | 4346ae3e | Avi Kivity | static void destroy_l2_mapping(PhysPageEntry *lp, unsigned level) |
681 | 54688b1e | Avi Kivity | { |
682 | 54688b1e | Avi Kivity | unsigned i;
|
683 | d6f2ea22 | Avi Kivity | PhysPageEntry *p; |
684 | 54688b1e | Avi Kivity | |
685 | c19e8800 | Avi Kivity | if (lp->ptr == PHYS_MAP_NODE_NIL) {
|
686 | 54688b1e | Avi Kivity | return;
|
687 | 54688b1e | Avi Kivity | } |
688 | 54688b1e | Avi Kivity | |
689 | c19e8800 | Avi Kivity | p = phys_map_nodes[lp->ptr]; |
690 | 4346ae3e | Avi Kivity | for (i = 0; i < L2_SIZE; ++i) { |
691 | 07f07b31 | Avi Kivity | if (!p[i].is_leaf) {
|
692 | 54688b1e | Avi Kivity | destroy_l2_mapping(&p[i], level - 1);
|
693 | 4346ae3e | Avi Kivity | } else {
|
694 | c19e8800 | Avi Kivity | destroy_page_desc(p[i].ptr); |
695 | 54688b1e | Avi Kivity | } |
696 | 54688b1e | Avi Kivity | } |
697 | 07f07b31 | Avi Kivity | lp->is_leaf = 0;
|
698 | c19e8800 | Avi Kivity | lp->ptr = PHYS_MAP_NODE_NIL; |
699 | 54688b1e | Avi Kivity | } |
700 | 54688b1e | Avi Kivity | |
701 | ac1970fb | Avi Kivity | static void destroy_all_mappings(AddressSpaceDispatch *d) |
702 | 54688b1e | Avi Kivity | { |
703 | ac1970fb | Avi Kivity | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1);
|
704 | d6f2ea22 | Avi Kivity | phys_map_nodes_reset(); |
705 | 54688b1e | Avi Kivity | } |
706 | 54688b1e | Avi Kivity | |
707 | 5312bd8b | Avi Kivity | static uint16_t phys_section_add(MemoryRegionSection *section)
|
708 | 5312bd8b | Avi Kivity | { |
709 | 5312bd8b | Avi Kivity | if (phys_sections_nb == phys_sections_nb_alloc) {
|
710 | 5312bd8b | Avi Kivity | phys_sections_nb_alloc = MAX(phys_sections_nb_alloc * 2, 16); |
711 | 5312bd8b | Avi Kivity | phys_sections = g_renew(MemoryRegionSection, phys_sections, |
712 | 5312bd8b | Avi Kivity | phys_sections_nb_alloc); |
713 | 5312bd8b | Avi Kivity | } |
714 | 5312bd8b | Avi Kivity | phys_sections[phys_sections_nb] = *section; |
715 | 5312bd8b | Avi Kivity | return phys_sections_nb++;
|
716 | 5312bd8b | Avi Kivity | } |
717 | 5312bd8b | Avi Kivity | |
718 | 5312bd8b | Avi Kivity | static void phys_sections_clear(void) |
719 | 5312bd8b | Avi Kivity | { |
720 | 5312bd8b | Avi Kivity | phys_sections_nb = 0;
|
721 | 5312bd8b | Avi Kivity | } |
722 | 5312bd8b | Avi Kivity | |
723 | ac1970fb | Avi Kivity | static void register_subpage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
724 | 0f0cb164 | Avi Kivity | { |
725 | 0f0cb164 | Avi Kivity | subpage_t *subpage; |
726 | a8170e5e | Avi Kivity | hwaddr base = section->offset_within_address_space |
727 | 0f0cb164 | Avi Kivity | & TARGET_PAGE_MASK; |
728 | ac1970fb | Avi Kivity | MemoryRegionSection *existing = phys_page_find(d, base >> TARGET_PAGE_BITS); |
729 | 0f0cb164 | Avi Kivity | MemoryRegionSection subsection = { |
730 | 0f0cb164 | Avi Kivity | .offset_within_address_space = base, |
731 | 0f0cb164 | Avi Kivity | .size = TARGET_PAGE_SIZE, |
732 | 0f0cb164 | Avi Kivity | }; |
733 | a8170e5e | Avi Kivity | hwaddr start, end; |
734 | 0f0cb164 | Avi Kivity | |
735 | f3705d53 | Avi Kivity | assert(existing->mr->subpage || existing->mr == &io_mem_unassigned); |
736 | 0f0cb164 | Avi Kivity | |
737 | f3705d53 | Avi Kivity | if (!(existing->mr->subpage)) {
|
738 | 0f0cb164 | Avi Kivity | subpage = subpage_init(base); |
739 | 0f0cb164 | Avi Kivity | subsection.mr = &subpage->iomem; |
740 | ac1970fb | Avi Kivity | phys_page_set(d, base >> TARGET_PAGE_BITS, 1,
|
741 | 2999097b | Avi Kivity | phys_section_add(&subsection)); |
742 | 0f0cb164 | Avi Kivity | } else {
|
743 | f3705d53 | Avi Kivity | subpage = container_of(existing->mr, subpage_t, iomem); |
744 | 0f0cb164 | Avi Kivity | } |
745 | 0f0cb164 | Avi Kivity | start = section->offset_within_address_space & ~TARGET_PAGE_MASK; |
746 | adb2a9b5 | Tyler Hall | end = start + section->size - 1;
|
747 | 0f0cb164 | Avi Kivity | subpage_register(subpage, start, end, phys_section_add(section)); |
748 | 0f0cb164 | Avi Kivity | } |
749 | 0f0cb164 | Avi Kivity | |
750 | 0f0cb164 | Avi Kivity | |
751 | ac1970fb | Avi Kivity | static void register_multipage(AddressSpaceDispatch *d, MemoryRegionSection *section) |
752 | 33417e70 | bellard | { |
753 | a8170e5e | Avi Kivity | hwaddr start_addr = section->offset_within_address_space; |
754 | dd81124b | Avi Kivity | ram_addr_t size = section->size; |
755 | a8170e5e | Avi Kivity | hwaddr addr; |
756 | 5312bd8b | Avi Kivity | uint16_t section_index = phys_section_add(section); |
757 | dd81124b | Avi Kivity | |
758 | 3b8e6a2d | Edgar E. Iglesias | assert(size); |
759 | f6f3fbca | Michael S. Tsirkin | |
760 | 3b8e6a2d | Edgar E. Iglesias | addr = start_addr; |
761 | ac1970fb | Avi Kivity | phys_page_set(d, addr >> TARGET_PAGE_BITS, size >> TARGET_PAGE_BITS, |
762 | 2999097b | Avi Kivity | section_index); |
763 | 33417e70 | bellard | } |
764 | 33417e70 | bellard | |
765 | ac1970fb | Avi Kivity | static void mem_add(MemoryListener *listener, MemoryRegionSection *section) |
766 | 0f0cb164 | Avi Kivity | { |
767 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
768 | 0f0cb164 | Avi Kivity | MemoryRegionSection now = *section, remain = *section; |
769 | 0f0cb164 | Avi Kivity | |
770 | 0f0cb164 | Avi Kivity | if ((now.offset_within_address_space & ~TARGET_PAGE_MASK)
|
771 | 0f0cb164 | Avi Kivity | || (now.size < TARGET_PAGE_SIZE)) { |
772 | 0f0cb164 | Avi Kivity | now.size = MIN(TARGET_PAGE_ALIGN(now.offset_within_address_space) |
773 | 0f0cb164 | Avi Kivity | - now.offset_within_address_space, |
774 | 0f0cb164 | Avi Kivity | now.size); |
775 | ac1970fb | Avi Kivity | register_subpage(d, &now); |
776 | 0f0cb164 | Avi Kivity | remain.size -= now.size; |
777 | 0f0cb164 | Avi Kivity | remain.offset_within_address_space += now.size; |
778 | 0f0cb164 | Avi Kivity | remain.offset_within_region += now.size; |
779 | 0f0cb164 | Avi Kivity | } |
780 | 69b67646 | Tyler Hall | while (remain.size >= TARGET_PAGE_SIZE) {
|
781 | 69b67646 | Tyler Hall | now = remain; |
782 | 69b67646 | Tyler Hall | if (remain.offset_within_region & ~TARGET_PAGE_MASK) {
|
783 | 69b67646 | Tyler Hall | now.size = TARGET_PAGE_SIZE; |
784 | ac1970fb | Avi Kivity | register_subpage(d, &now); |
785 | 69b67646 | Tyler Hall | } else {
|
786 | 69b67646 | Tyler Hall | now.size &= TARGET_PAGE_MASK; |
787 | ac1970fb | Avi Kivity | register_multipage(d, &now); |
788 | 69b67646 | Tyler Hall | } |
789 | 0f0cb164 | Avi Kivity | remain.size -= now.size; |
790 | 0f0cb164 | Avi Kivity | remain.offset_within_address_space += now.size; |
791 | 0f0cb164 | Avi Kivity | remain.offset_within_region += now.size; |
792 | 0f0cb164 | Avi Kivity | } |
793 | 0f0cb164 | Avi Kivity | now = remain; |
794 | 0f0cb164 | Avi Kivity | if (now.size) {
|
795 | ac1970fb | Avi Kivity | register_subpage(d, &now); |
796 | 0f0cb164 | Avi Kivity | } |
797 | 0f0cb164 | Avi Kivity | } |
798 | 0f0cb164 | Avi Kivity | |
799 | 62a2744c | Sheng Yang | void qemu_flush_coalesced_mmio_buffer(void) |
800 | 62a2744c | Sheng Yang | { |
801 | 62a2744c | Sheng Yang | if (kvm_enabled())
|
802 | 62a2744c | Sheng Yang | kvm_flush_coalesced_mmio_buffer(); |
803 | 62a2744c | Sheng Yang | } |
804 | 62a2744c | Sheng Yang | |
805 | b2a8658e | Umesh Deshpande | void qemu_mutex_lock_ramlist(void) |
806 | b2a8658e | Umesh Deshpande | { |
807 | b2a8658e | Umesh Deshpande | qemu_mutex_lock(&ram_list.mutex); |
808 | b2a8658e | Umesh Deshpande | } |
809 | b2a8658e | Umesh Deshpande | |
810 | b2a8658e | Umesh Deshpande | void qemu_mutex_unlock_ramlist(void) |
811 | b2a8658e | Umesh Deshpande | { |
812 | b2a8658e | Umesh Deshpande | qemu_mutex_unlock(&ram_list.mutex); |
813 | b2a8658e | Umesh Deshpande | } |
814 | b2a8658e | Umesh Deshpande | |
815 | c902760f | Marcelo Tosatti | #if defined(__linux__) && !defined(TARGET_S390X)
|
816 | c902760f | Marcelo Tosatti | |
817 | c902760f | Marcelo Tosatti | #include <sys/vfs.h> |
818 | c902760f | Marcelo Tosatti | |
819 | c902760f | Marcelo Tosatti | #define HUGETLBFS_MAGIC 0x958458f6 |
820 | c902760f | Marcelo Tosatti | |
821 | c902760f | Marcelo Tosatti | static long gethugepagesize(const char *path) |
822 | c902760f | Marcelo Tosatti | { |
823 | c902760f | Marcelo Tosatti | struct statfs fs;
|
824 | c902760f | Marcelo Tosatti | int ret;
|
825 | c902760f | Marcelo Tosatti | |
826 | c902760f | Marcelo Tosatti | do {
|
827 | 9742bf26 | Yoshiaki Tamura | ret = statfs(path, &fs); |
828 | c902760f | Marcelo Tosatti | } while (ret != 0 && errno == EINTR); |
829 | c902760f | Marcelo Tosatti | |
830 | c902760f | Marcelo Tosatti | if (ret != 0) { |
831 | 9742bf26 | Yoshiaki Tamura | perror(path); |
832 | 9742bf26 | Yoshiaki Tamura | return 0; |
833 | c902760f | Marcelo Tosatti | } |
834 | c902760f | Marcelo Tosatti | |
835 | c902760f | Marcelo Tosatti | if (fs.f_type != HUGETLBFS_MAGIC)
|
836 | 9742bf26 | Yoshiaki Tamura | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path);
|
837 | c902760f | Marcelo Tosatti | |
838 | c902760f | Marcelo Tosatti | return fs.f_bsize;
|
839 | c902760f | Marcelo Tosatti | } |
840 | c902760f | Marcelo Tosatti | |
841 | 04b16653 | Alex Williamson | static void *file_ram_alloc(RAMBlock *block, |
842 | 04b16653 | Alex Williamson | ram_addr_t memory, |
843 | 04b16653 | Alex Williamson | const char *path) |
844 | c902760f | Marcelo Tosatti | { |
845 | c902760f | Marcelo Tosatti | char *filename;
|
846 | c902760f | Marcelo Tosatti | void *area;
|
847 | c902760f | Marcelo Tosatti | int fd;
|
848 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
849 | c902760f | Marcelo Tosatti | int flags;
|
850 | c902760f | Marcelo Tosatti | #endif
|
851 | c902760f | Marcelo Tosatti | unsigned long hpagesize; |
852 | c902760f | Marcelo Tosatti | |
853 | c902760f | Marcelo Tosatti | hpagesize = gethugepagesize(path); |
854 | c902760f | Marcelo Tosatti | if (!hpagesize) {
|
855 | 9742bf26 | Yoshiaki Tamura | return NULL; |
856 | c902760f | Marcelo Tosatti | } |
857 | c902760f | Marcelo Tosatti | |
858 | c902760f | Marcelo Tosatti | if (memory < hpagesize) {
|
859 | c902760f | Marcelo Tosatti | return NULL; |
860 | c902760f | Marcelo Tosatti | } |
861 | c902760f | Marcelo Tosatti | |
862 | c902760f | Marcelo Tosatti | if (kvm_enabled() && !kvm_has_sync_mmu()) {
|
863 | c902760f | Marcelo Tosatti | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n");
|
864 | c902760f | Marcelo Tosatti | return NULL; |
865 | c902760f | Marcelo Tosatti | } |
866 | c902760f | Marcelo Tosatti | |
867 | c902760f | Marcelo Tosatti | if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) { |
868 | 9742bf26 | Yoshiaki Tamura | return NULL; |
869 | c902760f | Marcelo Tosatti | } |
870 | c902760f | Marcelo Tosatti | |
871 | c902760f | Marcelo Tosatti | fd = mkstemp(filename); |
872 | c902760f | Marcelo Tosatti | if (fd < 0) { |
873 | 9742bf26 | Yoshiaki Tamura | perror("unable to create backing store for hugepages");
|
874 | 9742bf26 | Yoshiaki Tamura | free(filename); |
875 | 9742bf26 | Yoshiaki Tamura | return NULL; |
876 | c902760f | Marcelo Tosatti | } |
877 | c902760f | Marcelo Tosatti | unlink(filename); |
878 | c902760f | Marcelo Tosatti | free(filename); |
879 | c902760f | Marcelo Tosatti | |
880 | c902760f | Marcelo Tosatti | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
881 | c902760f | Marcelo Tosatti | |
882 | c902760f | Marcelo Tosatti | /*
|
883 | c902760f | Marcelo Tosatti | * ftruncate is not supported by hugetlbfs in older
|
884 | c902760f | Marcelo Tosatti | * hosts, so don't bother bailing out on errors.
|
885 | c902760f | Marcelo Tosatti | * If anything goes wrong with it under other filesystems,
|
886 | c902760f | Marcelo Tosatti | * mmap will fail.
|
887 | c902760f | Marcelo Tosatti | */
|
888 | c902760f | Marcelo Tosatti | if (ftruncate(fd, memory))
|
889 | 9742bf26 | Yoshiaki Tamura | perror("ftruncate");
|
890 | c902760f | Marcelo Tosatti | |
891 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
892 | c902760f | Marcelo Tosatti | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case
|
893 | c902760f | Marcelo Tosatti | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED
|
894 | c902760f | Marcelo Tosatti | * to sidestep this quirk.
|
895 | c902760f | Marcelo Tosatti | */
|
896 | c902760f | Marcelo Tosatti | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; |
897 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); |
898 | c902760f | Marcelo Tosatti | #else
|
899 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
900 | c902760f | Marcelo Tosatti | #endif
|
901 | c902760f | Marcelo Tosatti | if (area == MAP_FAILED) {
|
902 | 9742bf26 | Yoshiaki Tamura | perror("file_ram_alloc: can't mmap RAM pages");
|
903 | 9742bf26 | Yoshiaki Tamura | close(fd); |
904 | 9742bf26 | Yoshiaki Tamura | return (NULL); |
905 | c902760f | Marcelo Tosatti | } |
906 | 04b16653 | Alex Williamson | block->fd = fd; |
907 | c902760f | Marcelo Tosatti | return area;
|
908 | c902760f | Marcelo Tosatti | } |
909 | c902760f | Marcelo Tosatti | #endif
|
910 | c902760f | Marcelo Tosatti | |
911 | d17b5288 | Alex Williamson | static ram_addr_t find_ram_offset(ram_addr_t size)
|
912 | d17b5288 | Alex Williamson | { |
913 | 04b16653 | Alex Williamson | RAMBlock *block, *next_block; |
914 | 3e837b2c | Alex Williamson | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
915 | 04b16653 | Alex Williamson | |
916 | a3161038 | Paolo Bonzini | if (QTAILQ_EMPTY(&ram_list.blocks))
|
917 | 04b16653 | Alex Williamson | return 0; |
918 | 04b16653 | Alex Williamson | |
919 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
920 | f15fbc4b | Anthony PERARD | ram_addr_t end, next = RAM_ADDR_MAX; |
921 | 04b16653 | Alex Williamson | |
922 | 04b16653 | Alex Williamson | end = block->offset + block->length; |
923 | 04b16653 | Alex Williamson | |
924 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
925 | 04b16653 | Alex Williamson | if (next_block->offset >= end) {
|
926 | 04b16653 | Alex Williamson | next = MIN(next, next_block->offset); |
927 | 04b16653 | Alex Williamson | } |
928 | 04b16653 | Alex Williamson | } |
929 | 04b16653 | Alex Williamson | if (next - end >= size && next - end < mingap) {
|
930 | 3e837b2c | Alex Williamson | offset = end; |
931 | 04b16653 | Alex Williamson | mingap = next - end; |
932 | 04b16653 | Alex Williamson | } |
933 | 04b16653 | Alex Williamson | } |
934 | 3e837b2c | Alex Williamson | |
935 | 3e837b2c | Alex Williamson | if (offset == RAM_ADDR_MAX) {
|
936 | 3e837b2c | Alex Williamson | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
937 | 3e837b2c | Alex Williamson | (uint64_t)size); |
938 | 3e837b2c | Alex Williamson | abort(); |
939 | 3e837b2c | Alex Williamson | } |
940 | 3e837b2c | Alex Williamson | |
941 | 04b16653 | Alex Williamson | return offset;
|
942 | 04b16653 | Alex Williamson | } |
943 | 04b16653 | Alex Williamson | |
944 | 652d7ec2 | Juan Quintela | ram_addr_t last_ram_offset(void)
|
945 | 04b16653 | Alex Williamson | { |
946 | d17b5288 | Alex Williamson | RAMBlock *block; |
947 | d17b5288 | Alex Williamson | ram_addr_t last = 0;
|
948 | d17b5288 | Alex Williamson | |
949 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
950 | d17b5288 | Alex Williamson | last = MAX(last, block->offset + block->length); |
951 | d17b5288 | Alex Williamson | |
952 | d17b5288 | Alex Williamson | return last;
|
953 | d17b5288 | Alex Williamson | } |
954 | d17b5288 | Alex Williamson | |
955 | ddb97f1d | Jason Baron | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
956 | ddb97f1d | Jason Baron | { |
957 | ddb97f1d | Jason Baron | int ret;
|
958 | ddb97f1d | Jason Baron | QemuOpts *machine_opts; |
959 | ddb97f1d | Jason Baron | |
960 | ddb97f1d | Jason Baron | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */
|
961 | ddb97f1d | Jason Baron | machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
962 | ddb97f1d | Jason Baron | if (machine_opts &&
|
963 | ddb97f1d | Jason Baron | !qemu_opt_get_bool(machine_opts, "dump-guest-core", true)) { |
964 | ddb97f1d | Jason Baron | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
965 | ddb97f1d | Jason Baron | if (ret) {
|
966 | ddb97f1d | Jason Baron | perror("qemu_madvise");
|
967 | ddb97f1d | Jason Baron | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, "
|
968 | ddb97f1d | Jason Baron | "but dump_guest_core=off specified\n");
|
969 | ddb97f1d | Jason Baron | } |
970 | ddb97f1d | Jason Baron | } |
971 | ddb97f1d | Jason Baron | } |
972 | ddb97f1d | Jason Baron | |
973 | c5705a77 | Avi Kivity | void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) |
974 | 84b89d78 | Cam Macdonell | { |
975 | 84b89d78 | Cam Macdonell | RAMBlock *new_block, *block; |
976 | 84b89d78 | Cam Macdonell | |
977 | c5705a77 | Avi Kivity | new_block = NULL;
|
978 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
979 | c5705a77 | Avi Kivity | if (block->offset == addr) {
|
980 | c5705a77 | Avi Kivity | new_block = block; |
981 | c5705a77 | Avi Kivity | break;
|
982 | c5705a77 | Avi Kivity | } |
983 | c5705a77 | Avi Kivity | } |
984 | c5705a77 | Avi Kivity | assert(new_block); |
985 | c5705a77 | Avi Kivity | assert(!new_block->idstr[0]);
|
986 | 84b89d78 | Cam Macdonell | |
987 | 09e5ab63 | Anthony Liguori | if (dev) {
|
988 | 09e5ab63 | Anthony Liguori | char *id = qdev_get_dev_path(dev);
|
989 | 84b89d78 | Cam Macdonell | if (id) {
|
990 | 84b89d78 | Cam Macdonell | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
991 | 7267c094 | Anthony Liguori | g_free(id); |
992 | 84b89d78 | Cam Macdonell | } |
993 | 84b89d78 | Cam Macdonell | } |
994 | 84b89d78 | Cam Macdonell | pstrcat(new_block->idstr, sizeof(new_block->idstr), name);
|
995 | 84b89d78 | Cam Macdonell | |
996 | b2a8658e | Umesh Deshpande | /* This assumes the iothread lock is taken here too. */
|
997 | b2a8658e | Umesh Deshpande | qemu_mutex_lock_ramlist(); |
998 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
999 | c5705a77 | Avi Kivity | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) {
|
1000 | 84b89d78 | Cam Macdonell | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n",
|
1001 | 84b89d78 | Cam Macdonell | new_block->idstr); |
1002 | 84b89d78 | Cam Macdonell | abort(); |
1003 | 84b89d78 | Cam Macdonell | } |
1004 | 84b89d78 | Cam Macdonell | } |
1005 | b2a8658e | Umesh Deshpande | qemu_mutex_unlock_ramlist(); |
1006 | c5705a77 | Avi Kivity | } |
1007 | c5705a77 | Avi Kivity | |
1008 | 8490fc78 | Luiz Capitulino | static int memory_try_enable_merging(void *addr, size_t len) |
1009 | 8490fc78 | Luiz Capitulino | { |
1010 | 8490fc78 | Luiz Capitulino | QemuOpts *opts; |
1011 | 8490fc78 | Luiz Capitulino | |
1012 | 8490fc78 | Luiz Capitulino | opts = qemu_opts_find(qemu_find_opts("machine"), 0); |
1013 | 8490fc78 | Luiz Capitulino | if (opts && !qemu_opt_get_bool(opts, "mem-merge", true)) { |
1014 | 8490fc78 | Luiz Capitulino | /* disabled by the user */
|
1015 | 8490fc78 | Luiz Capitulino | return 0; |
1016 | 8490fc78 | Luiz Capitulino | } |
1017 | 8490fc78 | Luiz Capitulino | |
1018 | 8490fc78 | Luiz Capitulino | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE);
|
1019 | 8490fc78 | Luiz Capitulino | } |
1020 | 8490fc78 | Luiz Capitulino | |
1021 | c5705a77 | Avi Kivity | ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
|
1022 | c5705a77 | Avi Kivity | MemoryRegion *mr) |
1023 | c5705a77 | Avi Kivity | { |
1024 | abb26d63 | Paolo Bonzini | RAMBlock *block, *new_block; |
1025 | c5705a77 | Avi Kivity | |
1026 | c5705a77 | Avi Kivity | size = TARGET_PAGE_ALIGN(size); |
1027 | c5705a77 | Avi Kivity | new_block = g_malloc0(sizeof(*new_block));
|
1028 | 84b89d78 | Cam Macdonell | |
1029 | b2a8658e | Umesh Deshpande | /* This assumes the iothread lock is taken here too. */
|
1030 | b2a8658e | Umesh Deshpande | qemu_mutex_lock_ramlist(); |
1031 | 7c637366 | Avi Kivity | new_block->mr = mr; |
1032 | 432d268c | Jun Nakajima | new_block->offset = find_ram_offset(size); |
1033 | 6977dfe6 | Yoshiaki Tamura | if (host) {
|
1034 | 6977dfe6 | Yoshiaki Tamura | new_block->host = host; |
1035 | cd19cfa2 | Huang Ying | new_block->flags |= RAM_PREALLOC_MASK; |
1036 | 6977dfe6 | Yoshiaki Tamura | } else {
|
1037 | 6977dfe6 | Yoshiaki Tamura | if (mem_path) {
|
1038 | c902760f | Marcelo Tosatti | #if defined (__linux__) && !defined(TARGET_S390X)
|
1039 | 6977dfe6 | Yoshiaki Tamura | new_block->host = file_ram_alloc(new_block, size, mem_path); |
1040 | 6977dfe6 | Yoshiaki Tamura | if (!new_block->host) {
|
1041 | 6977dfe6 | Yoshiaki Tamura | new_block->host = qemu_vmalloc(size); |
1042 | 8490fc78 | Luiz Capitulino | memory_try_enable_merging(new_block->host, size); |
1043 | 6977dfe6 | Yoshiaki Tamura | } |
1044 | c902760f | Marcelo Tosatti | #else
|
1045 | 6977dfe6 | Yoshiaki Tamura | fprintf(stderr, "-mem-path option unsupported\n");
|
1046 | 6977dfe6 | Yoshiaki Tamura | exit(1);
|
1047 | c902760f | Marcelo Tosatti | #endif
|
1048 | 6977dfe6 | Yoshiaki Tamura | } else {
|
1049 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
1050 | fce537d4 | Avi Kivity | xen_ram_alloc(new_block->offset, size, mr); |
1051 | fdec9918 | Christian Borntraeger | } else if (kvm_enabled()) { |
1052 | fdec9918 | Christian Borntraeger | /* some s390/kvm configurations have special constraints */
|
1053 | fdec9918 | Christian Borntraeger | new_block->host = kvm_vmalloc(size); |
1054 | 432d268c | Jun Nakajima | } else {
|
1055 | 432d268c | Jun Nakajima | new_block->host = qemu_vmalloc(size); |
1056 | 432d268c | Jun Nakajima | } |
1057 | 8490fc78 | Luiz Capitulino | memory_try_enable_merging(new_block->host, size); |
1058 | 6977dfe6 | Yoshiaki Tamura | } |
1059 | c902760f | Marcelo Tosatti | } |
1060 | 94a6b54f | pbrook | new_block->length = size; |
1061 | 94a6b54f | pbrook | |
1062 | abb26d63 | Paolo Bonzini | /* Keep the list sorted from biggest to smallest block. */
|
1063 | abb26d63 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1064 | abb26d63 | Paolo Bonzini | if (block->length < new_block->length) {
|
1065 | abb26d63 | Paolo Bonzini | break;
|
1066 | abb26d63 | Paolo Bonzini | } |
1067 | abb26d63 | Paolo Bonzini | } |
1068 | abb26d63 | Paolo Bonzini | if (block) {
|
1069 | abb26d63 | Paolo Bonzini | QTAILQ_INSERT_BEFORE(block, new_block, next); |
1070 | abb26d63 | Paolo Bonzini | } else {
|
1071 | abb26d63 | Paolo Bonzini | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
1072 | abb26d63 | Paolo Bonzini | } |
1073 | 0d6d3c87 | Paolo Bonzini | ram_list.mru_block = NULL;
|
1074 | 94a6b54f | pbrook | |
1075 | f798b07f | Umesh Deshpande | ram_list.version++; |
1076 | b2a8658e | Umesh Deshpande | qemu_mutex_unlock_ramlist(); |
1077 | f798b07f | Umesh Deshpande | |
1078 | 7267c094 | Anthony Liguori | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
1079 | 04b16653 | Alex Williamson | last_ram_offset() >> TARGET_PAGE_BITS); |
1080 | 5fda043f | Igor Mitsyanko | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
1081 | 5fda043f | Igor Mitsyanko | 0, size >> TARGET_PAGE_BITS);
|
1082 | 1720aeee | Juan Quintela | cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff);
|
1083 | 94a6b54f | pbrook | |
1084 | ddb97f1d | Jason Baron | qemu_ram_setup_dump(new_block->host, size); |
1085 | ad0b5321 | Luiz Capitulino | qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
1086 | ddb97f1d | Jason Baron | |
1087 | 6f0437e8 | Jan Kiszka | if (kvm_enabled())
|
1088 | 6f0437e8 | Jan Kiszka | kvm_setup_guest_memory(new_block->host, size); |
1089 | 6f0437e8 | Jan Kiszka | |
1090 | 94a6b54f | pbrook | return new_block->offset;
|
1091 | 94a6b54f | pbrook | } |
1092 | e9a1ab19 | bellard | |
1093 | c5705a77 | Avi Kivity | ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr) |
1094 | 6977dfe6 | Yoshiaki Tamura | { |
1095 | c5705a77 | Avi Kivity | return qemu_ram_alloc_from_ptr(size, NULL, mr); |
1096 | 6977dfe6 | Yoshiaki Tamura | } |
1097 | 6977dfe6 | Yoshiaki Tamura | |
1098 | 1f2e98b6 | Alex Williamson | void qemu_ram_free_from_ptr(ram_addr_t addr)
|
1099 | 1f2e98b6 | Alex Williamson | { |
1100 | 1f2e98b6 | Alex Williamson | RAMBlock *block; |
1101 | 1f2e98b6 | Alex Williamson | |
1102 | b2a8658e | Umesh Deshpande | /* This assumes the iothread lock is taken here too. */
|
1103 | b2a8658e | Umesh Deshpande | qemu_mutex_lock_ramlist(); |
1104 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1105 | 1f2e98b6 | Alex Williamson | if (addr == block->offset) {
|
1106 | a3161038 | Paolo Bonzini | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
1107 | 0d6d3c87 | Paolo Bonzini | ram_list.mru_block = NULL;
|
1108 | f798b07f | Umesh Deshpande | ram_list.version++; |
1109 | 7267c094 | Anthony Liguori | g_free(block); |
1110 | b2a8658e | Umesh Deshpande | break;
|
1111 | 1f2e98b6 | Alex Williamson | } |
1112 | 1f2e98b6 | Alex Williamson | } |
1113 | b2a8658e | Umesh Deshpande | qemu_mutex_unlock_ramlist(); |
1114 | 1f2e98b6 | Alex Williamson | } |
1115 | 1f2e98b6 | Alex Williamson | |
1116 | c227f099 | Anthony Liguori | void qemu_ram_free(ram_addr_t addr)
|
1117 | e9a1ab19 | bellard | { |
1118 | 04b16653 | Alex Williamson | RAMBlock *block; |
1119 | 04b16653 | Alex Williamson | |
1120 | b2a8658e | Umesh Deshpande | /* This assumes the iothread lock is taken here too. */
|
1121 | b2a8658e | Umesh Deshpande | qemu_mutex_lock_ramlist(); |
1122 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1123 | 04b16653 | Alex Williamson | if (addr == block->offset) {
|
1124 | a3161038 | Paolo Bonzini | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
1125 | 0d6d3c87 | Paolo Bonzini | ram_list.mru_block = NULL;
|
1126 | f798b07f | Umesh Deshpande | ram_list.version++; |
1127 | cd19cfa2 | Huang Ying | if (block->flags & RAM_PREALLOC_MASK) {
|
1128 | cd19cfa2 | Huang Ying | ; |
1129 | cd19cfa2 | Huang Ying | } else if (mem_path) { |
1130 | 04b16653 | Alex Williamson | #if defined (__linux__) && !defined(TARGET_S390X)
|
1131 | 04b16653 | Alex Williamson | if (block->fd) {
|
1132 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
1133 | 04b16653 | Alex Williamson | close(block->fd); |
1134 | 04b16653 | Alex Williamson | } else {
|
1135 | 04b16653 | Alex Williamson | qemu_vfree(block->host); |
1136 | 04b16653 | Alex Williamson | } |
1137 | fd28aa13 | Jan Kiszka | #else
|
1138 | fd28aa13 | Jan Kiszka | abort(); |
1139 | 04b16653 | Alex Williamson | #endif
|
1140 | 04b16653 | Alex Williamson | } else {
|
1141 | 04b16653 | Alex Williamson | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
1142 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
1143 | 04b16653 | Alex Williamson | #else
|
1144 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
1145 | e41d7c69 | Jan Kiszka | xen_invalidate_map_cache_entry(block->host); |
1146 | 432d268c | Jun Nakajima | } else {
|
1147 | 432d268c | Jun Nakajima | qemu_vfree(block->host); |
1148 | 432d268c | Jun Nakajima | } |
1149 | 04b16653 | Alex Williamson | #endif
|
1150 | 04b16653 | Alex Williamson | } |
1151 | 7267c094 | Anthony Liguori | g_free(block); |
1152 | b2a8658e | Umesh Deshpande | break;
|
1153 | 04b16653 | Alex Williamson | } |
1154 | 04b16653 | Alex Williamson | } |
1155 | b2a8658e | Umesh Deshpande | qemu_mutex_unlock_ramlist(); |
1156 | 04b16653 | Alex Williamson | |
1157 | e9a1ab19 | bellard | } |
1158 | e9a1ab19 | bellard | |
1159 | cd19cfa2 | Huang Ying | #ifndef _WIN32
|
1160 | cd19cfa2 | Huang Ying | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length)
|
1161 | cd19cfa2 | Huang Ying | { |
1162 | cd19cfa2 | Huang Ying | RAMBlock *block; |
1163 | cd19cfa2 | Huang Ying | ram_addr_t offset; |
1164 | cd19cfa2 | Huang Ying | int flags;
|
1165 | cd19cfa2 | Huang Ying | void *area, *vaddr;
|
1166 | cd19cfa2 | Huang Ying | |
1167 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1168 | cd19cfa2 | Huang Ying | offset = addr - block->offset; |
1169 | cd19cfa2 | Huang Ying | if (offset < block->length) {
|
1170 | cd19cfa2 | Huang Ying | vaddr = block->host + offset; |
1171 | cd19cfa2 | Huang Ying | if (block->flags & RAM_PREALLOC_MASK) {
|
1172 | cd19cfa2 | Huang Ying | ; |
1173 | cd19cfa2 | Huang Ying | } else {
|
1174 | cd19cfa2 | Huang Ying | flags = MAP_FIXED; |
1175 | cd19cfa2 | Huang Ying | munmap(vaddr, length); |
1176 | cd19cfa2 | Huang Ying | if (mem_path) {
|
1177 | cd19cfa2 | Huang Ying | #if defined(__linux__) && !defined(TARGET_S390X)
|
1178 | cd19cfa2 | Huang Ying | if (block->fd) {
|
1179 | cd19cfa2 | Huang Ying | #ifdef MAP_POPULATE
|
1180 | cd19cfa2 | Huang Ying | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
1181 | cd19cfa2 | Huang Ying | MAP_PRIVATE; |
1182 | cd19cfa2 | Huang Ying | #else
|
1183 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE; |
1184 | cd19cfa2 | Huang Ying | #endif
|
1185 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
1186 | cd19cfa2 | Huang Ying | flags, block->fd, offset); |
1187 | cd19cfa2 | Huang Ying | } else {
|
1188 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
1189 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
1190 | cd19cfa2 | Huang Ying | flags, -1, 0); |
1191 | cd19cfa2 | Huang Ying | } |
1192 | fd28aa13 | Jan Kiszka | #else
|
1193 | fd28aa13 | Jan Kiszka | abort(); |
1194 | cd19cfa2 | Huang Ying | #endif
|
1195 | cd19cfa2 | Huang Ying | } else {
|
1196 | cd19cfa2 | Huang Ying | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
1197 | cd19cfa2 | Huang Ying | flags |= MAP_SHARED | MAP_ANONYMOUS; |
1198 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_EXEC|PROT_READ|PROT_WRITE, |
1199 | cd19cfa2 | Huang Ying | flags, -1, 0); |
1200 | cd19cfa2 | Huang Ying | #else
|
1201 | cd19cfa2 | Huang Ying | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
1202 | cd19cfa2 | Huang Ying | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
1203 | cd19cfa2 | Huang Ying | flags, -1, 0); |
1204 | cd19cfa2 | Huang Ying | #endif
|
1205 | cd19cfa2 | Huang Ying | } |
1206 | cd19cfa2 | Huang Ying | if (area != vaddr) {
|
1207 | f15fbc4b | Anthony PERARD | fprintf(stderr, "Could not remap addr: "
|
1208 | f15fbc4b | Anthony PERARD | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
1209 | cd19cfa2 | Huang Ying | length, addr); |
1210 | cd19cfa2 | Huang Ying | exit(1);
|
1211 | cd19cfa2 | Huang Ying | } |
1212 | 8490fc78 | Luiz Capitulino | memory_try_enable_merging(vaddr, length); |
1213 | ddb97f1d | Jason Baron | qemu_ram_setup_dump(vaddr, length); |
1214 | cd19cfa2 | Huang Ying | } |
1215 | cd19cfa2 | Huang Ying | return;
|
1216 | cd19cfa2 | Huang Ying | } |
1217 | cd19cfa2 | Huang Ying | } |
1218 | cd19cfa2 | Huang Ying | } |
1219 | cd19cfa2 | Huang Ying | #endif /* !_WIN32 */ |
1220 | cd19cfa2 | Huang Ying | |
1221 | dc828ca1 | pbrook | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
1222 | 5579c7f3 | pbrook | With the exception of the softmmu code in this file, this should
|
1223 | 5579c7f3 | pbrook | only be used for local memory (e.g. video ram) that the device owns,
|
1224 | 5579c7f3 | pbrook | and knows it isn't going to access beyond the end of the block.
|
1225 | 5579c7f3 | pbrook | |
1226 | 5579c7f3 | pbrook | It should not be used for general purpose DMA.
|
1227 | 5579c7f3 | pbrook | Use cpu_physical_memory_map/cpu_physical_memory_rw instead.
|
1228 | 5579c7f3 | pbrook | */
|
1229 | c227f099 | Anthony Liguori | void *qemu_get_ram_ptr(ram_addr_t addr)
|
1230 | dc828ca1 | pbrook | { |
1231 | 94a6b54f | pbrook | RAMBlock *block; |
1232 | 94a6b54f | pbrook | |
1233 | b2a8658e | Umesh Deshpande | /* The list is protected by the iothread lock here. */
|
1234 | 0d6d3c87 | Paolo Bonzini | block = ram_list.mru_block; |
1235 | 0d6d3c87 | Paolo Bonzini | if (block && addr - block->offset < block->length) {
|
1236 | 0d6d3c87 | Paolo Bonzini | goto found;
|
1237 | 0d6d3c87 | Paolo Bonzini | } |
1238 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1239 | f471a17e | Alex Williamson | if (addr - block->offset < block->length) {
|
1240 | 0d6d3c87 | Paolo Bonzini | goto found;
|
1241 | f471a17e | Alex Williamson | } |
1242 | 94a6b54f | pbrook | } |
1243 | f471a17e | Alex Williamson | |
1244 | f471a17e | Alex Williamson | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
1245 | f471a17e | Alex Williamson | abort(); |
1246 | f471a17e | Alex Williamson | |
1247 | 0d6d3c87 | Paolo Bonzini | found:
|
1248 | 0d6d3c87 | Paolo Bonzini | ram_list.mru_block = block; |
1249 | 0d6d3c87 | Paolo Bonzini | if (xen_enabled()) {
|
1250 | 0d6d3c87 | Paolo Bonzini | /* We need to check if the requested address is in the RAM
|
1251 | 0d6d3c87 | Paolo Bonzini | * because we don't want to map the entire memory in QEMU.
|
1252 | 0d6d3c87 | Paolo Bonzini | * In that case just map until the end of the page.
|
1253 | 0d6d3c87 | Paolo Bonzini | */
|
1254 | 0d6d3c87 | Paolo Bonzini | if (block->offset == 0) { |
1255 | 0d6d3c87 | Paolo Bonzini | return xen_map_cache(addr, 0, 0); |
1256 | 0d6d3c87 | Paolo Bonzini | } else if (block->host == NULL) { |
1257 | 0d6d3c87 | Paolo Bonzini | block->host = |
1258 | 0d6d3c87 | Paolo Bonzini | xen_map_cache(block->offset, block->length, 1);
|
1259 | 0d6d3c87 | Paolo Bonzini | } |
1260 | 0d6d3c87 | Paolo Bonzini | } |
1261 | 0d6d3c87 | Paolo Bonzini | return block->host + (addr - block->offset);
|
1262 | dc828ca1 | pbrook | } |
1263 | dc828ca1 | pbrook | |
1264 | 0d6d3c87 | Paolo Bonzini | /* Return a host pointer to ram allocated with qemu_ram_alloc. Same as
|
1265 | 0d6d3c87 | Paolo Bonzini | * qemu_get_ram_ptr but do not touch ram_list.mru_block.
|
1266 | 0d6d3c87 | Paolo Bonzini | *
|
1267 | 0d6d3c87 | Paolo Bonzini | * ??? Is this still necessary?
|
1268 | b2e0a138 | Michael S. Tsirkin | */
|
1269 | 8b9c99d9 | Blue Swirl | static void *qemu_safe_ram_ptr(ram_addr_t addr) |
1270 | b2e0a138 | Michael S. Tsirkin | { |
1271 | b2e0a138 | Michael S. Tsirkin | RAMBlock *block; |
1272 | b2e0a138 | Michael S. Tsirkin | |
1273 | b2a8658e | Umesh Deshpande | /* The list is protected by the iothread lock here. */
|
1274 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1275 | b2e0a138 | Michael S. Tsirkin | if (addr - block->offset < block->length) {
|
1276 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
1277 | 432d268c | Jun Nakajima | /* We need to check if the requested address is in the RAM
|
1278 | 432d268c | Jun Nakajima | * because we don't want to map the entire memory in QEMU.
|
1279 | 712c2b41 | Stefano Stabellini | * In that case just map until the end of the page.
|
1280 | 432d268c | Jun Nakajima | */
|
1281 | 432d268c | Jun Nakajima | if (block->offset == 0) { |
1282 | e41d7c69 | Jan Kiszka | return xen_map_cache(addr, 0, 0); |
1283 | 432d268c | Jun Nakajima | } else if (block->host == NULL) { |
1284 | e41d7c69 | Jan Kiszka | block->host = |
1285 | e41d7c69 | Jan Kiszka | xen_map_cache(block->offset, block->length, 1);
|
1286 | 432d268c | Jun Nakajima | } |
1287 | 432d268c | Jun Nakajima | } |
1288 | b2e0a138 | Michael S. Tsirkin | return block->host + (addr - block->offset);
|
1289 | b2e0a138 | Michael S. Tsirkin | } |
1290 | b2e0a138 | Michael S. Tsirkin | } |
1291 | b2e0a138 | Michael S. Tsirkin | |
1292 | b2e0a138 | Michael S. Tsirkin | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
1293 | b2e0a138 | Michael S. Tsirkin | abort(); |
1294 | b2e0a138 | Michael S. Tsirkin | |
1295 | b2e0a138 | Michael S. Tsirkin | return NULL; |
1296 | b2e0a138 | Michael S. Tsirkin | } |
1297 | b2e0a138 | Michael S. Tsirkin | |
1298 | 38bee5dc | Stefano Stabellini | /* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr
|
1299 | 38bee5dc | Stefano Stabellini | * but takes a size argument */
|
1300 | 8b9c99d9 | Blue Swirl | static void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size) |
1301 | 38bee5dc | Stefano Stabellini | { |
1302 | 8ab934f9 | Stefano Stabellini | if (*size == 0) { |
1303 | 8ab934f9 | Stefano Stabellini | return NULL; |
1304 | 8ab934f9 | Stefano Stabellini | } |
1305 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
1306 | e41d7c69 | Jan Kiszka | return xen_map_cache(addr, *size, 1); |
1307 | 868bb33f | Jan Kiszka | } else {
|
1308 | 38bee5dc | Stefano Stabellini | RAMBlock *block; |
1309 | 38bee5dc | Stefano Stabellini | |
1310 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1311 | 38bee5dc | Stefano Stabellini | if (addr - block->offset < block->length) {
|
1312 | 38bee5dc | Stefano Stabellini | if (addr - block->offset + *size > block->length)
|
1313 | 38bee5dc | Stefano Stabellini | *size = block->length - addr + block->offset; |
1314 | 38bee5dc | Stefano Stabellini | return block->host + (addr - block->offset);
|
1315 | 38bee5dc | Stefano Stabellini | } |
1316 | 38bee5dc | Stefano Stabellini | } |
1317 | 38bee5dc | Stefano Stabellini | |
1318 | 38bee5dc | Stefano Stabellini | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
1319 | 38bee5dc | Stefano Stabellini | abort(); |
1320 | 38bee5dc | Stefano Stabellini | } |
1321 | 38bee5dc | Stefano Stabellini | } |
1322 | 38bee5dc | Stefano Stabellini | |
1323 | 050a0ddf | Anthony PERARD | void qemu_put_ram_ptr(void *addr) |
1324 | 050a0ddf | Anthony PERARD | { |
1325 | 050a0ddf | Anthony PERARD | trace_qemu_put_ram_ptr(addr); |
1326 | 050a0ddf | Anthony PERARD | } |
1327 | 050a0ddf | Anthony PERARD | |
1328 | e890261f | Marcelo Tosatti | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
1329 | 5579c7f3 | pbrook | { |
1330 | 94a6b54f | pbrook | RAMBlock *block; |
1331 | 94a6b54f | pbrook | uint8_t *host = ptr; |
1332 | 94a6b54f | pbrook | |
1333 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
1334 | e41d7c69 | Jan Kiszka | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
1335 | 712c2b41 | Stefano Stabellini | return 0; |
1336 | 712c2b41 | Stefano Stabellini | } |
1337 | 712c2b41 | Stefano Stabellini | |
1338 | a3161038 | Paolo Bonzini | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
1339 | 432d268c | Jun Nakajima | /* This case append when the block is not mapped. */
|
1340 | 432d268c | Jun Nakajima | if (block->host == NULL) { |
1341 | 432d268c | Jun Nakajima | continue;
|
1342 | 432d268c | Jun Nakajima | } |
1343 | f471a17e | Alex Williamson | if (host - block->host < block->length) {
|
1344 | e890261f | Marcelo Tosatti | *ram_addr = block->offset + (host - block->host); |
1345 | e890261f | Marcelo Tosatti | return 0; |
1346 | f471a17e | Alex Williamson | } |
1347 | 94a6b54f | pbrook | } |
1348 | 432d268c | Jun Nakajima | |
1349 | e890261f | Marcelo Tosatti | return -1; |
1350 | e890261f | Marcelo Tosatti | } |
1351 | f471a17e | Alex Williamson | |
1352 | e890261f | Marcelo Tosatti | /* Some of the softmmu routines need to translate from a host pointer
|
1353 | e890261f | Marcelo Tosatti | (typically a TLB entry) back to a ram offset. */
|
1354 | e890261f | Marcelo Tosatti | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr)
|
1355 | e890261f | Marcelo Tosatti | { |
1356 | e890261f | Marcelo Tosatti | ram_addr_t ram_addr; |
1357 | f471a17e | Alex Williamson | |
1358 | e890261f | Marcelo Tosatti | if (qemu_ram_addr_from_host(ptr, &ram_addr)) {
|
1359 | e890261f | Marcelo Tosatti | fprintf(stderr, "Bad ram pointer %p\n", ptr);
|
1360 | e890261f | Marcelo Tosatti | abort(); |
1361 | e890261f | Marcelo Tosatti | } |
1362 | e890261f | Marcelo Tosatti | return ram_addr;
|
1363 | 5579c7f3 | pbrook | } |
1364 | 5579c7f3 | pbrook | |
1365 | a8170e5e | Avi Kivity | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
1366 | 0e0df1e2 | Avi Kivity | unsigned size)
|
1367 | e18231a3 | blueswir1 | { |
1368 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
1369 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
1370 | e18231a3 | blueswir1 | #endif
|
1371 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
1372 | 0e0df1e2 | Avi Kivity | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, size); |
1373 | e18231a3 | blueswir1 | #endif
|
1374 | e18231a3 | blueswir1 | return 0; |
1375 | e18231a3 | blueswir1 | } |
1376 | e18231a3 | blueswir1 | |
1377 | a8170e5e | Avi Kivity | static void unassigned_mem_write(void *opaque, hwaddr addr, |
1378 | 0e0df1e2 | Avi Kivity | uint64_t val, unsigned size)
|
1379 | e18231a3 | blueswir1 | { |
1380 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
1381 | 0e0df1e2 | Avi Kivity | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
1382 | e18231a3 | blueswir1 | #endif
|
1383 | 5b450407 | Richard Henderson | #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
1384 | 0e0df1e2 | Avi Kivity | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, size); |
1385 | b4f0a316 | blueswir1 | #endif
|
1386 | 33417e70 | bellard | } |
1387 | 33417e70 | bellard | |
1388 | 0e0df1e2 | Avi Kivity | static const MemoryRegionOps unassigned_mem_ops = { |
1389 | 0e0df1e2 | Avi Kivity | .read = unassigned_mem_read, |
1390 | 0e0df1e2 | Avi Kivity | .write = unassigned_mem_write, |
1391 | 0e0df1e2 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1392 | 0e0df1e2 | Avi Kivity | }; |
1393 | e18231a3 | blueswir1 | |
1394 | a8170e5e | Avi Kivity | static uint64_t error_mem_read(void *opaque, hwaddr addr, |
1395 | 0e0df1e2 | Avi Kivity | unsigned size)
|
1396 | e18231a3 | blueswir1 | { |
1397 | 0e0df1e2 | Avi Kivity | abort(); |
1398 | e18231a3 | blueswir1 | } |
1399 | e18231a3 | blueswir1 | |
1400 | a8170e5e | Avi Kivity | static void error_mem_write(void *opaque, hwaddr addr, |
1401 | 0e0df1e2 | Avi Kivity | uint64_t value, unsigned size)
|
1402 | e18231a3 | blueswir1 | { |
1403 | 0e0df1e2 | Avi Kivity | abort(); |
1404 | 33417e70 | bellard | } |
1405 | 33417e70 | bellard | |
1406 | 0e0df1e2 | Avi Kivity | static const MemoryRegionOps error_mem_ops = { |
1407 | 0e0df1e2 | Avi Kivity | .read = error_mem_read, |
1408 | 0e0df1e2 | Avi Kivity | .write = error_mem_write, |
1409 | 0e0df1e2 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1410 | 33417e70 | bellard | }; |
1411 | 33417e70 | bellard | |
1412 | 0e0df1e2 | Avi Kivity | static const MemoryRegionOps rom_mem_ops = { |
1413 | 0e0df1e2 | Avi Kivity | .read = error_mem_read, |
1414 | 0e0df1e2 | Avi Kivity | .write = unassigned_mem_write, |
1415 | 0e0df1e2 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1416 | 33417e70 | bellard | }; |
1417 | 33417e70 | bellard | |
1418 | a8170e5e | Avi Kivity | static void notdirty_mem_write(void *opaque, hwaddr ram_addr, |
1419 | 0e0df1e2 | Avi Kivity | uint64_t val, unsigned size)
|
1420 | 9fa3e853 | bellard | { |
1421 | 3a7d929e | bellard | int dirty_flags;
|
1422 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
1423 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
1424 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
1425 | 0e0df1e2 | Avi Kivity | tb_invalidate_phys_page_fast(ram_addr, size); |
1426 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
1427 | 9fa3e853 | bellard | #endif
|
1428 | 3a7d929e | bellard | } |
1429 | 0e0df1e2 | Avi Kivity | switch (size) {
|
1430 | 0e0df1e2 | Avi Kivity | case 1: |
1431 | 0e0df1e2 | Avi Kivity | stb_p(qemu_get_ram_ptr(ram_addr), val); |
1432 | 0e0df1e2 | Avi Kivity | break;
|
1433 | 0e0df1e2 | Avi Kivity | case 2: |
1434 | 0e0df1e2 | Avi Kivity | stw_p(qemu_get_ram_ptr(ram_addr), val); |
1435 | 0e0df1e2 | Avi Kivity | break;
|
1436 | 0e0df1e2 | Avi Kivity | case 4: |
1437 | 0e0df1e2 | Avi Kivity | stl_p(qemu_get_ram_ptr(ram_addr), val); |
1438 | 0e0df1e2 | Avi Kivity | break;
|
1439 | 0e0df1e2 | Avi Kivity | default:
|
1440 | 0e0df1e2 | Avi Kivity | abort(); |
1441 | 3a7d929e | bellard | } |
1442 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
1443 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
1444 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
1445 | f23db169 | bellard | flushed */
|
1446 | f23db169 | bellard | if (dirty_flags == 0xff) |
1447 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
1448 | 9fa3e853 | bellard | } |
1449 | 9fa3e853 | bellard | |
1450 | 0e0df1e2 | Avi Kivity | static const MemoryRegionOps notdirty_mem_ops = { |
1451 | 0e0df1e2 | Avi Kivity | .read = error_mem_read, |
1452 | 0e0df1e2 | Avi Kivity | .write = notdirty_mem_write, |
1453 | 0e0df1e2 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1454 | 1ccde1cb | bellard | }; |
1455 | 1ccde1cb | bellard | |
1456 | 0f459d16 | pbrook | /* Generate a debug exception if a watchpoint has been hit. */
|
1457 | b4051334 | aliguori | static void check_watchpoint(int offset, int len_mask, int flags) |
1458 | 0f459d16 | pbrook | { |
1459 | 9349b4f9 | Andreas Färber | CPUArchState *env = cpu_single_env; |
1460 | 06d55cc1 | aliguori | target_ulong pc, cs_base; |
1461 | 0f459d16 | pbrook | target_ulong vaddr; |
1462 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
1463 | 06d55cc1 | aliguori | int cpu_flags;
|
1464 | 0f459d16 | pbrook | |
1465 | 06d55cc1 | aliguori | if (env->watchpoint_hit) {
|
1466 | 06d55cc1 | aliguori | /* We re-entered the check after replacing the TB. Now raise
|
1467 | 06d55cc1 | aliguori | * the debug interrupt so that is will trigger after the
|
1468 | 06d55cc1 | aliguori | * current instruction. */
|
1469 | 06d55cc1 | aliguori | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
1470 | 06d55cc1 | aliguori | return;
|
1471 | 06d55cc1 | aliguori | } |
1472 | 2e70f6ef | pbrook | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
1473 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1474 | b4051334 | aliguori | if ((vaddr == (wp->vaddr & len_mask) ||
|
1475 | b4051334 | aliguori | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
1476 | 6e140f28 | aliguori | wp->flags |= BP_WATCHPOINT_HIT; |
1477 | 6e140f28 | aliguori | if (!env->watchpoint_hit) {
|
1478 | 6e140f28 | aliguori | env->watchpoint_hit = wp; |
1479 | 5a316526 | Blue Swirl | tb_check_watchpoint(env); |
1480 | 6e140f28 | aliguori | if (wp->flags & BP_STOP_BEFORE_ACCESS) {
|
1481 | 6e140f28 | aliguori | env->exception_index = EXCP_DEBUG; |
1482 | 488d6577 | Max Filippov | cpu_loop_exit(env); |
1483 | 6e140f28 | aliguori | } else {
|
1484 | 6e140f28 | aliguori | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
1485 | 6e140f28 | aliguori | tb_gen_code(env, pc, cs_base, cpu_flags, 1);
|
1486 | 488d6577 | Max Filippov | cpu_resume_from_signal(env, NULL);
|
1487 | 6e140f28 | aliguori | } |
1488 | 06d55cc1 | aliguori | } |
1489 | 6e140f28 | aliguori | } else {
|
1490 | 6e140f28 | aliguori | wp->flags &= ~BP_WATCHPOINT_HIT; |
1491 | 0f459d16 | pbrook | } |
1492 | 0f459d16 | pbrook | } |
1493 | 0f459d16 | pbrook | } |
1494 | 0f459d16 | pbrook | |
1495 | 6658ffb8 | pbrook | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks,
|
1496 | 6658ffb8 | pbrook | so these check for a hit then pass through to the normal out-of-line
|
1497 | 6658ffb8 | pbrook | phys routines. */
|
1498 | a8170e5e | Avi Kivity | static uint64_t watch_mem_read(void *opaque, hwaddr addr, |
1499 | 1ec9b909 | Avi Kivity | unsigned size)
|
1500 | 6658ffb8 | pbrook | { |
1501 | 1ec9b909 | Avi Kivity | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_READ);
|
1502 | 1ec9b909 | Avi Kivity | switch (size) {
|
1503 | 1ec9b909 | Avi Kivity | case 1: return ldub_phys(addr); |
1504 | 1ec9b909 | Avi Kivity | case 2: return lduw_phys(addr); |
1505 | 1ec9b909 | Avi Kivity | case 4: return ldl_phys(addr); |
1506 | 1ec9b909 | Avi Kivity | default: abort();
|
1507 | 1ec9b909 | Avi Kivity | } |
1508 | 6658ffb8 | pbrook | } |
1509 | 6658ffb8 | pbrook | |
1510 | a8170e5e | Avi Kivity | static void watch_mem_write(void *opaque, hwaddr addr, |
1511 | 1ec9b909 | Avi Kivity | uint64_t val, unsigned size)
|
1512 | 6658ffb8 | pbrook | { |
1513 | 1ec9b909 | Avi Kivity | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~(size - 1), BP_MEM_WRITE);
|
1514 | 1ec9b909 | Avi Kivity | switch (size) {
|
1515 | 67364150 | Max Filippov | case 1: |
1516 | 67364150 | Max Filippov | stb_phys(addr, val); |
1517 | 67364150 | Max Filippov | break;
|
1518 | 67364150 | Max Filippov | case 2: |
1519 | 67364150 | Max Filippov | stw_phys(addr, val); |
1520 | 67364150 | Max Filippov | break;
|
1521 | 67364150 | Max Filippov | case 4: |
1522 | 67364150 | Max Filippov | stl_phys(addr, val); |
1523 | 67364150 | Max Filippov | break;
|
1524 | 1ec9b909 | Avi Kivity | default: abort();
|
1525 | 1ec9b909 | Avi Kivity | } |
1526 | 6658ffb8 | pbrook | } |
1527 | 6658ffb8 | pbrook | |
1528 | 1ec9b909 | Avi Kivity | static const MemoryRegionOps watch_mem_ops = { |
1529 | 1ec9b909 | Avi Kivity | .read = watch_mem_read, |
1530 | 1ec9b909 | Avi Kivity | .write = watch_mem_write, |
1531 | 1ec9b909 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1532 | 6658ffb8 | pbrook | }; |
1533 | 6658ffb8 | pbrook | |
1534 | a8170e5e | Avi Kivity | static uint64_t subpage_read(void *opaque, hwaddr addr, |
1535 | 70c68e44 | Avi Kivity | unsigned len)
|
1536 | db7b5426 | blueswir1 | { |
1537 | 70c68e44 | Avi Kivity | subpage_t *mmio = opaque; |
1538 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
1539 | 5312bd8b | Avi Kivity | MemoryRegionSection *section; |
1540 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
1541 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
1542 | db7b5426 | blueswir1 | mmio, len, addr, idx); |
1543 | db7b5426 | blueswir1 | #endif
|
1544 | db7b5426 | blueswir1 | |
1545 | 5312bd8b | Avi Kivity | section = &phys_sections[mmio->sub_section[idx]]; |
1546 | 5312bd8b | Avi Kivity | addr += mmio->base; |
1547 | 5312bd8b | Avi Kivity | addr -= section->offset_within_address_space; |
1548 | 5312bd8b | Avi Kivity | addr += section->offset_within_region; |
1549 | 37ec01d4 | Avi Kivity | return io_mem_read(section->mr, addr, len);
|
1550 | db7b5426 | blueswir1 | } |
1551 | db7b5426 | blueswir1 | |
1552 | a8170e5e | Avi Kivity | static void subpage_write(void *opaque, hwaddr addr, |
1553 | 70c68e44 | Avi Kivity | uint64_t value, unsigned len)
|
1554 | db7b5426 | blueswir1 | { |
1555 | 70c68e44 | Avi Kivity | subpage_t *mmio = opaque; |
1556 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
1557 | 5312bd8b | Avi Kivity | MemoryRegionSection *section; |
1558 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
1559 | 70c68e44 | Avi Kivity | printf("%s: subpage %p len %d addr " TARGET_FMT_plx
|
1560 | 70c68e44 | Avi Kivity | " idx %d value %"PRIx64"\n", |
1561 | f6405247 | Richard Henderson | __func__, mmio, len, addr, idx, value); |
1562 | db7b5426 | blueswir1 | #endif
|
1563 | f6405247 | Richard Henderson | |
1564 | 5312bd8b | Avi Kivity | section = &phys_sections[mmio->sub_section[idx]]; |
1565 | 5312bd8b | Avi Kivity | addr += mmio->base; |
1566 | 5312bd8b | Avi Kivity | addr -= section->offset_within_address_space; |
1567 | 5312bd8b | Avi Kivity | addr += section->offset_within_region; |
1568 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, value, len); |
1569 | db7b5426 | blueswir1 | } |
1570 | db7b5426 | blueswir1 | |
1571 | 70c68e44 | Avi Kivity | static const MemoryRegionOps subpage_ops = { |
1572 | 70c68e44 | Avi Kivity | .read = subpage_read, |
1573 | 70c68e44 | Avi Kivity | .write = subpage_write, |
1574 | 70c68e44 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1575 | db7b5426 | blueswir1 | }; |
1576 | db7b5426 | blueswir1 | |
1577 | a8170e5e | Avi Kivity | static uint64_t subpage_ram_read(void *opaque, hwaddr addr, |
1578 | de712f94 | Avi Kivity | unsigned size)
|
1579 | 56384e8b | Andreas Färber | { |
1580 | 56384e8b | Andreas Färber | ram_addr_t raddr = addr; |
1581 | 56384e8b | Andreas Färber | void *ptr = qemu_get_ram_ptr(raddr);
|
1582 | de712f94 | Avi Kivity | switch (size) {
|
1583 | de712f94 | Avi Kivity | case 1: return ldub_p(ptr); |
1584 | de712f94 | Avi Kivity | case 2: return lduw_p(ptr); |
1585 | de712f94 | Avi Kivity | case 4: return ldl_p(ptr); |
1586 | de712f94 | Avi Kivity | default: abort();
|
1587 | de712f94 | Avi Kivity | } |
1588 | 56384e8b | Andreas Färber | } |
1589 | 56384e8b | Andreas Färber | |
1590 | a8170e5e | Avi Kivity | static void subpage_ram_write(void *opaque, hwaddr addr, |
1591 | de712f94 | Avi Kivity | uint64_t value, unsigned size)
|
1592 | 56384e8b | Andreas Färber | { |
1593 | 56384e8b | Andreas Färber | ram_addr_t raddr = addr; |
1594 | 56384e8b | Andreas Färber | void *ptr = qemu_get_ram_ptr(raddr);
|
1595 | de712f94 | Avi Kivity | switch (size) {
|
1596 | de712f94 | Avi Kivity | case 1: return stb_p(ptr, value); |
1597 | de712f94 | Avi Kivity | case 2: return stw_p(ptr, value); |
1598 | de712f94 | Avi Kivity | case 4: return stl_p(ptr, value); |
1599 | de712f94 | Avi Kivity | default: abort();
|
1600 | de712f94 | Avi Kivity | } |
1601 | 56384e8b | Andreas Färber | } |
1602 | 56384e8b | Andreas Färber | |
1603 | de712f94 | Avi Kivity | static const MemoryRegionOps subpage_ram_ops = { |
1604 | de712f94 | Avi Kivity | .read = subpage_ram_read, |
1605 | de712f94 | Avi Kivity | .write = subpage_ram_write, |
1606 | de712f94 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
1607 | 56384e8b | Andreas Färber | }; |
1608 | 56384e8b | Andreas Färber | |
1609 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
1610 | 5312bd8b | Avi Kivity | uint16_t section) |
1611 | db7b5426 | blueswir1 | { |
1612 | db7b5426 | blueswir1 | int idx, eidx;
|
1613 | db7b5426 | blueswir1 | |
1614 | db7b5426 | blueswir1 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE)
|
1615 | db7b5426 | blueswir1 | return -1; |
1616 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(start); |
1617 | db7b5426 | blueswir1 | eidx = SUBPAGE_IDX(end); |
1618 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
1619 | 0bf9e31a | Blue Swirl | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__,
|
1620 | db7b5426 | blueswir1 | mmio, start, end, idx, eidx, memory); |
1621 | db7b5426 | blueswir1 | #endif
|
1622 | 5312bd8b | Avi Kivity | if (memory_region_is_ram(phys_sections[section].mr)) {
|
1623 | 5312bd8b | Avi Kivity | MemoryRegionSection new_section = phys_sections[section]; |
1624 | 5312bd8b | Avi Kivity | new_section.mr = &io_mem_subpage_ram; |
1625 | 5312bd8b | Avi Kivity | section = phys_section_add(&new_section); |
1626 | 56384e8b | Andreas Färber | } |
1627 | db7b5426 | blueswir1 | for (; idx <= eidx; idx++) {
|
1628 | 5312bd8b | Avi Kivity | mmio->sub_section[idx] = section; |
1629 | db7b5426 | blueswir1 | } |
1630 | db7b5426 | blueswir1 | |
1631 | db7b5426 | blueswir1 | return 0; |
1632 | db7b5426 | blueswir1 | } |
1633 | db7b5426 | blueswir1 | |
1634 | a8170e5e | Avi Kivity | static subpage_t *subpage_init(hwaddr base)
|
1635 | db7b5426 | blueswir1 | { |
1636 | c227f099 | Anthony Liguori | subpage_t *mmio; |
1637 | db7b5426 | blueswir1 | |
1638 | 7267c094 | Anthony Liguori | mmio = g_malloc0(sizeof(subpage_t));
|
1639 | 1eec614b | aliguori | |
1640 | 1eec614b | aliguori | mmio->base = base; |
1641 | 70c68e44 | Avi Kivity | memory_region_init_io(&mmio->iomem, &subpage_ops, mmio, |
1642 | 70c68e44 | Avi Kivity | "subpage", TARGET_PAGE_SIZE);
|
1643 | b3b00c78 | Avi Kivity | mmio->iomem.subpage = true;
|
1644 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
1645 | 1eec614b | aliguori | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
1646 | 1eec614b | aliguori | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
1647 | db7b5426 | blueswir1 | #endif
|
1648 | 0f0cb164 | Avi Kivity | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, phys_section_unassigned); |
1649 | db7b5426 | blueswir1 | |
1650 | db7b5426 | blueswir1 | return mmio;
|
1651 | db7b5426 | blueswir1 | } |
1652 | db7b5426 | blueswir1 | |
1653 | 5312bd8b | Avi Kivity | static uint16_t dummy_section(MemoryRegion *mr)
|
1654 | 5312bd8b | Avi Kivity | { |
1655 | 5312bd8b | Avi Kivity | MemoryRegionSection section = { |
1656 | 5312bd8b | Avi Kivity | .mr = mr, |
1657 | 5312bd8b | Avi Kivity | .offset_within_address_space = 0,
|
1658 | 5312bd8b | Avi Kivity | .offset_within_region = 0,
|
1659 | 5312bd8b | Avi Kivity | .size = UINT64_MAX, |
1660 | 5312bd8b | Avi Kivity | }; |
1661 | 5312bd8b | Avi Kivity | |
1662 | 5312bd8b | Avi Kivity | return phys_section_add(§ion);
|
1663 | 5312bd8b | Avi Kivity | } |
1664 | 5312bd8b | Avi Kivity | |
1665 | a8170e5e | Avi Kivity | MemoryRegion *iotlb_to_region(hwaddr index) |
1666 | aa102231 | Avi Kivity | { |
1667 | 37ec01d4 | Avi Kivity | return phys_sections[index & ~TARGET_PAGE_MASK].mr;
|
1668 | aa102231 | Avi Kivity | } |
1669 | aa102231 | Avi Kivity | |
1670 | e9179ce1 | Avi Kivity | static void io_mem_init(void) |
1671 | e9179ce1 | Avi Kivity | { |
1672 | 0e0df1e2 | Avi Kivity | memory_region_init_io(&io_mem_ram, &error_mem_ops, NULL, "ram", UINT64_MAX); |
1673 | 0e0df1e2 | Avi Kivity | memory_region_init_io(&io_mem_rom, &rom_mem_ops, NULL, "rom", UINT64_MAX); |
1674 | 0e0df1e2 | Avi Kivity | memory_region_init_io(&io_mem_unassigned, &unassigned_mem_ops, NULL,
|
1675 | 0e0df1e2 | Avi Kivity | "unassigned", UINT64_MAX);
|
1676 | 0e0df1e2 | Avi Kivity | memory_region_init_io(&io_mem_notdirty, ¬dirty_mem_ops, NULL,
|
1677 | 0e0df1e2 | Avi Kivity | "notdirty", UINT64_MAX);
|
1678 | de712f94 | Avi Kivity | memory_region_init_io(&io_mem_subpage_ram, &subpage_ram_ops, NULL,
|
1679 | de712f94 | Avi Kivity | "subpage-ram", UINT64_MAX);
|
1680 | 1ec9b909 | Avi Kivity | memory_region_init_io(&io_mem_watch, &watch_mem_ops, NULL,
|
1681 | 1ec9b909 | Avi Kivity | "watch", UINT64_MAX);
|
1682 | e9179ce1 | Avi Kivity | } |
1683 | e9179ce1 | Avi Kivity | |
1684 | ac1970fb | Avi Kivity | static void mem_begin(MemoryListener *listener) |
1685 | ac1970fb | Avi Kivity | { |
1686 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = container_of(listener, AddressSpaceDispatch, listener); |
1687 | ac1970fb | Avi Kivity | |
1688 | ac1970fb | Avi Kivity | destroy_all_mappings(d); |
1689 | ac1970fb | Avi Kivity | d->phys_map.ptr = PHYS_MAP_NODE_NIL; |
1690 | ac1970fb | Avi Kivity | } |
1691 | ac1970fb | Avi Kivity | |
1692 | 50c1e149 | Avi Kivity | static void core_begin(MemoryListener *listener) |
1693 | 50c1e149 | Avi Kivity | { |
1694 | 5312bd8b | Avi Kivity | phys_sections_clear(); |
1695 | 5312bd8b | Avi Kivity | phys_section_unassigned = dummy_section(&io_mem_unassigned); |
1696 | aa102231 | Avi Kivity | phys_section_notdirty = dummy_section(&io_mem_notdirty); |
1697 | aa102231 | Avi Kivity | phys_section_rom = dummy_section(&io_mem_rom); |
1698 | aa102231 | Avi Kivity | phys_section_watch = dummy_section(&io_mem_watch); |
1699 | 50c1e149 | Avi Kivity | } |
1700 | 50c1e149 | Avi Kivity | |
1701 | 1d71148e | Avi Kivity | static void tcg_commit(MemoryListener *listener) |
1702 | 50c1e149 | Avi Kivity | { |
1703 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
1704 | 117712c3 | Avi Kivity | |
1705 | 117712c3 | Avi Kivity | /* since each CPU stores ram addresses in its TLB cache, we must
|
1706 | 117712c3 | Avi Kivity | reset the modified entries */
|
1707 | 117712c3 | Avi Kivity | /* XXX: slow ! */
|
1708 | 117712c3 | Avi Kivity | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
1709 | 117712c3 | Avi Kivity | tlb_flush(env, 1);
|
1710 | 117712c3 | Avi Kivity | } |
1711 | 50c1e149 | Avi Kivity | } |
1712 | 50c1e149 | Avi Kivity | |
1713 | 93632747 | Avi Kivity | static void core_log_global_start(MemoryListener *listener) |
1714 | 93632747 | Avi Kivity | { |
1715 | 93632747 | Avi Kivity | cpu_physical_memory_set_dirty_tracking(1);
|
1716 | 93632747 | Avi Kivity | } |
1717 | 93632747 | Avi Kivity | |
1718 | 93632747 | Avi Kivity | static void core_log_global_stop(MemoryListener *listener) |
1719 | 93632747 | Avi Kivity | { |
1720 | 93632747 | Avi Kivity | cpu_physical_memory_set_dirty_tracking(0);
|
1721 | 93632747 | Avi Kivity | } |
1722 | 93632747 | Avi Kivity | |
1723 | 4855d41a | Avi Kivity | static void io_region_add(MemoryListener *listener, |
1724 | 4855d41a | Avi Kivity | MemoryRegionSection *section) |
1725 | 4855d41a | Avi Kivity | { |
1726 | a2d33521 | Avi Kivity | MemoryRegionIORange *mrio = g_new(MemoryRegionIORange, 1);
|
1727 | a2d33521 | Avi Kivity | |
1728 | a2d33521 | Avi Kivity | mrio->mr = section->mr; |
1729 | a2d33521 | Avi Kivity | mrio->offset = section->offset_within_region; |
1730 | a2d33521 | Avi Kivity | iorange_init(&mrio->iorange, &memory_region_iorange_ops, |
1731 | 4855d41a | Avi Kivity | section->offset_within_address_space, section->size); |
1732 | a2d33521 | Avi Kivity | ioport_register(&mrio->iorange); |
1733 | 4855d41a | Avi Kivity | } |
1734 | 4855d41a | Avi Kivity | |
1735 | 4855d41a | Avi Kivity | static void io_region_del(MemoryListener *listener, |
1736 | 4855d41a | Avi Kivity | MemoryRegionSection *section) |
1737 | 4855d41a | Avi Kivity | { |
1738 | 4855d41a | Avi Kivity | isa_unassign_ioport(section->offset_within_address_space, section->size); |
1739 | 4855d41a | Avi Kivity | } |
1740 | 4855d41a | Avi Kivity | |
1741 | 93632747 | Avi Kivity | static MemoryListener core_memory_listener = {
|
1742 | 50c1e149 | Avi Kivity | .begin = core_begin, |
1743 | 93632747 | Avi Kivity | .log_global_start = core_log_global_start, |
1744 | 93632747 | Avi Kivity | .log_global_stop = core_log_global_stop, |
1745 | ac1970fb | Avi Kivity | .priority = 1,
|
1746 | 93632747 | Avi Kivity | }; |
1747 | 93632747 | Avi Kivity | |
1748 | 4855d41a | Avi Kivity | static MemoryListener io_memory_listener = {
|
1749 | 4855d41a | Avi Kivity | .region_add = io_region_add, |
1750 | 4855d41a | Avi Kivity | .region_del = io_region_del, |
1751 | 4855d41a | Avi Kivity | .priority = 0,
|
1752 | 4855d41a | Avi Kivity | }; |
1753 | 4855d41a | Avi Kivity | |
1754 | 1d71148e | Avi Kivity | static MemoryListener tcg_memory_listener = {
|
1755 | 1d71148e | Avi Kivity | .commit = tcg_commit, |
1756 | 1d71148e | Avi Kivity | }; |
1757 | 1d71148e | Avi Kivity | |
1758 | ac1970fb | Avi Kivity | void address_space_init_dispatch(AddressSpace *as)
|
1759 | ac1970fb | Avi Kivity | { |
1760 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = g_new(AddressSpaceDispatch, 1);
|
1761 | ac1970fb | Avi Kivity | |
1762 | ac1970fb | Avi Kivity | d->phys_map = (PhysPageEntry) { .ptr = PHYS_MAP_NODE_NIL, .is_leaf = 0 };
|
1763 | ac1970fb | Avi Kivity | d->listener = (MemoryListener) { |
1764 | ac1970fb | Avi Kivity | .begin = mem_begin, |
1765 | ac1970fb | Avi Kivity | .region_add = mem_add, |
1766 | ac1970fb | Avi Kivity | .region_nop = mem_add, |
1767 | ac1970fb | Avi Kivity | .priority = 0,
|
1768 | ac1970fb | Avi Kivity | }; |
1769 | ac1970fb | Avi Kivity | as->dispatch = d; |
1770 | ac1970fb | Avi Kivity | memory_listener_register(&d->listener, as); |
1771 | ac1970fb | Avi Kivity | } |
1772 | ac1970fb | Avi Kivity | |
1773 | 83f3c251 | Avi Kivity | void address_space_destroy_dispatch(AddressSpace *as)
|
1774 | 83f3c251 | Avi Kivity | { |
1775 | 83f3c251 | Avi Kivity | AddressSpaceDispatch *d = as->dispatch; |
1776 | 83f3c251 | Avi Kivity | |
1777 | 83f3c251 | Avi Kivity | memory_listener_unregister(&d->listener); |
1778 | 83f3c251 | Avi Kivity | destroy_l2_mapping(&d->phys_map, P_L2_LEVELS - 1);
|
1779 | 83f3c251 | Avi Kivity | g_free(d); |
1780 | 83f3c251 | Avi Kivity | as->dispatch = NULL;
|
1781 | 83f3c251 | Avi Kivity | } |
1782 | 83f3c251 | Avi Kivity | |
1783 | 62152b8a | Avi Kivity | static void memory_map_init(void) |
1784 | 62152b8a | Avi Kivity | { |
1785 | 7267c094 | Anthony Liguori | system_memory = g_malloc(sizeof(*system_memory));
|
1786 | 8417cebf | Avi Kivity | memory_region_init(system_memory, "system", INT64_MAX);
|
1787 | 2673a5da | Avi Kivity | address_space_init(&address_space_memory, system_memory); |
1788 | 2673a5da | Avi Kivity | address_space_memory.name = "memory";
|
1789 | 309cb471 | Avi Kivity | |
1790 | 7267c094 | Anthony Liguori | system_io = g_malloc(sizeof(*system_io));
|
1791 | 309cb471 | Avi Kivity | memory_region_init(system_io, "io", 65536); |
1792 | 2673a5da | Avi Kivity | address_space_init(&address_space_io, system_io); |
1793 | 2673a5da | Avi Kivity | address_space_io.name = "I/O";
|
1794 | 93632747 | Avi Kivity | |
1795 | f6790af6 | Avi Kivity | memory_listener_register(&core_memory_listener, &address_space_memory); |
1796 | f6790af6 | Avi Kivity | memory_listener_register(&io_memory_listener, &address_space_io); |
1797 | f6790af6 | Avi Kivity | memory_listener_register(&tcg_memory_listener, &address_space_memory); |
1798 | 9e11908f | Peter Maydell | |
1799 | 9e11908f | Peter Maydell | dma_context_init(&dma_context_memory, &address_space_memory, |
1800 | 9e11908f | Peter Maydell | NULL, NULL, NULL); |
1801 | 62152b8a | Avi Kivity | } |
1802 | 62152b8a | Avi Kivity | |
1803 | 62152b8a | Avi Kivity | MemoryRegion *get_system_memory(void)
|
1804 | 62152b8a | Avi Kivity | { |
1805 | 62152b8a | Avi Kivity | return system_memory;
|
1806 | 62152b8a | Avi Kivity | } |
1807 | 62152b8a | Avi Kivity | |
1808 | 309cb471 | Avi Kivity | MemoryRegion *get_system_io(void)
|
1809 | 309cb471 | Avi Kivity | { |
1810 | 309cb471 | Avi Kivity | return system_io;
|
1811 | 309cb471 | Avi Kivity | } |
1812 | 309cb471 | Avi Kivity | |
1813 | e2eef170 | pbrook | #endif /* !defined(CONFIG_USER_ONLY) */ |
1814 | e2eef170 | pbrook | |
1815 | 13eb76e0 | bellard | /* physical memory access (slow version, mainly for debug) */
|
1816 | 13eb76e0 | bellard | #if defined(CONFIG_USER_ONLY)
|
1817 | 9349b4f9 | Andreas Färber | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
|
1818 | a68fe89c | Paul Brook | uint8_t *buf, int len, int is_write) |
1819 | 13eb76e0 | bellard | { |
1820 | 13eb76e0 | bellard | int l, flags;
|
1821 | 13eb76e0 | bellard | target_ulong page; |
1822 | 53a5960a | pbrook | void * p;
|
1823 | 13eb76e0 | bellard | |
1824 | 13eb76e0 | bellard | while (len > 0) { |
1825 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
1826 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
1827 | 13eb76e0 | bellard | if (l > len)
|
1828 | 13eb76e0 | bellard | l = len; |
1829 | 13eb76e0 | bellard | flags = page_get_flags(page); |
1830 | 13eb76e0 | bellard | if (!(flags & PAGE_VALID))
|
1831 | a68fe89c | Paul Brook | return -1; |
1832 | 13eb76e0 | bellard | if (is_write) {
|
1833 | 13eb76e0 | bellard | if (!(flags & PAGE_WRITE))
|
1834 | a68fe89c | Paul Brook | return -1; |
1835 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
1836 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
1837 | a68fe89c | Paul Brook | return -1; |
1838 | 72fb7daa | aurel32 | memcpy(p, buf, l); |
1839 | 72fb7daa | aurel32 | unlock_user(p, addr, l); |
1840 | 13eb76e0 | bellard | } else {
|
1841 | 13eb76e0 | bellard | if (!(flags & PAGE_READ))
|
1842 | a68fe89c | Paul Brook | return -1; |
1843 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
1844 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
1845 | a68fe89c | Paul Brook | return -1; |
1846 | 72fb7daa | aurel32 | memcpy(buf, p, l); |
1847 | 5b257578 | aurel32 | unlock_user(p, addr, 0);
|
1848 | 13eb76e0 | bellard | } |
1849 | 13eb76e0 | bellard | len -= l; |
1850 | 13eb76e0 | bellard | buf += l; |
1851 | 13eb76e0 | bellard | addr += l; |
1852 | 13eb76e0 | bellard | } |
1853 | a68fe89c | Paul Brook | return 0; |
1854 | 13eb76e0 | bellard | } |
1855 | 8df1cd07 | bellard | |
1856 | 13eb76e0 | bellard | #else
|
1857 | 51d7a9eb | Anthony PERARD | |
1858 | a8170e5e | Avi Kivity | static void invalidate_and_set_dirty(hwaddr addr, |
1859 | a8170e5e | Avi Kivity | hwaddr length) |
1860 | 51d7a9eb | Anthony PERARD | { |
1861 | 51d7a9eb | Anthony PERARD | if (!cpu_physical_memory_is_dirty(addr)) {
|
1862 | 51d7a9eb | Anthony PERARD | /* invalidate code */
|
1863 | 51d7a9eb | Anthony PERARD | tb_invalidate_phys_page_range(addr, addr + length, 0);
|
1864 | 51d7a9eb | Anthony PERARD | /* set dirty bit */
|
1865 | 51d7a9eb | Anthony PERARD | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG));
|
1866 | 51d7a9eb | Anthony PERARD | } |
1867 | e226939d | Anthony PERARD | xen_modified_memory(addr, length); |
1868 | 51d7a9eb | Anthony PERARD | } |
1869 | 51d7a9eb | Anthony PERARD | |
1870 | a8170e5e | Avi Kivity | void address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf,
|
1871 | ac1970fb | Avi Kivity | int len, bool is_write) |
1872 | 13eb76e0 | bellard | { |
1873 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = as->dispatch; |
1874 | 37ec01d4 | Avi Kivity | int l;
|
1875 | 13eb76e0 | bellard | uint8_t *ptr; |
1876 | 13eb76e0 | bellard | uint32_t val; |
1877 | a8170e5e | Avi Kivity | hwaddr page; |
1878 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
1879 | 3b46e624 | ths | |
1880 | 13eb76e0 | bellard | while (len > 0) { |
1881 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
1882 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
1883 | 13eb76e0 | bellard | if (l > len)
|
1884 | 13eb76e0 | bellard | l = len; |
1885 | ac1970fb | Avi Kivity | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
1886 | 3b46e624 | ths | |
1887 | 13eb76e0 | bellard | if (is_write) {
|
1888 | f3705d53 | Avi Kivity | if (!memory_region_is_ram(section->mr)) {
|
1889 | a8170e5e | Avi Kivity | hwaddr addr1; |
1890 | cc5bea60 | Blue Swirl | addr1 = memory_region_section_addr(section, addr); |
1891 | 6a00d601 | bellard | /* XXX: could force cpu_single_env to NULL to avoid
|
1892 | 6a00d601 | bellard | potential bugs */
|
1893 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
1894 | 1c213d19 | bellard | /* 32 bit write access */
|
1895 | c27004ec | bellard | val = ldl_p(buf); |
1896 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr1, val, 4);
|
1897 | 13eb76e0 | bellard | l = 4;
|
1898 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
1899 | 1c213d19 | bellard | /* 16 bit write access */
|
1900 | c27004ec | bellard | val = lduw_p(buf); |
1901 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr1, val, 2);
|
1902 | 13eb76e0 | bellard | l = 2;
|
1903 | 13eb76e0 | bellard | } else {
|
1904 | 1c213d19 | bellard | /* 8 bit write access */
|
1905 | c27004ec | bellard | val = ldub_p(buf); |
1906 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr1, val, 1);
|
1907 | 13eb76e0 | bellard | l = 1;
|
1908 | 13eb76e0 | bellard | } |
1909 | f3705d53 | Avi Kivity | } else if (!section->readonly) { |
1910 | 8ca5692d | Anthony PERARD | ram_addr_t addr1; |
1911 | f3705d53 | Avi Kivity | addr1 = memory_region_get_ram_addr(section->mr) |
1912 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
1913 | 13eb76e0 | bellard | /* RAM case */
|
1914 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
1915 | 13eb76e0 | bellard | memcpy(ptr, buf, l); |
1916 | 51d7a9eb | Anthony PERARD | invalidate_and_set_dirty(addr1, l); |
1917 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
1918 | 13eb76e0 | bellard | } |
1919 | 13eb76e0 | bellard | } else {
|
1920 | cc5bea60 | Blue Swirl | if (!(memory_region_is_ram(section->mr) ||
|
1921 | cc5bea60 | Blue Swirl | memory_region_is_romd(section->mr))) { |
1922 | a8170e5e | Avi Kivity | hwaddr addr1; |
1923 | 13eb76e0 | bellard | /* I/O case */
|
1924 | cc5bea60 | Blue Swirl | addr1 = memory_region_section_addr(section, addr); |
1925 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
1926 | 13eb76e0 | bellard | /* 32 bit read access */
|
1927 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr1, 4);
|
1928 | c27004ec | bellard | stl_p(buf, val); |
1929 | 13eb76e0 | bellard | l = 4;
|
1930 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
1931 | 13eb76e0 | bellard | /* 16 bit read access */
|
1932 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr1, 2);
|
1933 | c27004ec | bellard | stw_p(buf, val); |
1934 | 13eb76e0 | bellard | l = 2;
|
1935 | 13eb76e0 | bellard | } else {
|
1936 | 1c213d19 | bellard | /* 8 bit read access */
|
1937 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr1, 1);
|
1938 | c27004ec | bellard | stb_p(buf, val); |
1939 | 13eb76e0 | bellard | l = 1;
|
1940 | 13eb76e0 | bellard | } |
1941 | 13eb76e0 | bellard | } else {
|
1942 | 13eb76e0 | bellard | /* RAM case */
|
1943 | 0a1b357f | Anthony PERARD | ptr = qemu_get_ram_ptr(section->mr->ram_addr |
1944 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, |
1945 | cc5bea60 | Blue Swirl | addr)); |
1946 | f3705d53 | Avi Kivity | memcpy(buf, ptr, l); |
1947 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
1948 | 13eb76e0 | bellard | } |
1949 | 13eb76e0 | bellard | } |
1950 | 13eb76e0 | bellard | len -= l; |
1951 | 13eb76e0 | bellard | buf += l; |
1952 | 13eb76e0 | bellard | addr += l; |
1953 | 13eb76e0 | bellard | } |
1954 | 13eb76e0 | bellard | } |
1955 | 8df1cd07 | bellard | |
1956 | a8170e5e | Avi Kivity | void address_space_write(AddressSpace *as, hwaddr addr,
|
1957 | ac1970fb | Avi Kivity | const uint8_t *buf, int len) |
1958 | ac1970fb | Avi Kivity | { |
1959 | ac1970fb | Avi Kivity | address_space_rw(as, addr, (uint8_t *)buf, len, true);
|
1960 | ac1970fb | Avi Kivity | } |
1961 | ac1970fb | Avi Kivity | |
1962 | ac1970fb | Avi Kivity | /**
|
1963 | ac1970fb | Avi Kivity | * address_space_read: read from an address space.
|
1964 | ac1970fb | Avi Kivity | *
|
1965 | ac1970fb | Avi Kivity | * @as: #AddressSpace to be accessed
|
1966 | ac1970fb | Avi Kivity | * @addr: address within that address space
|
1967 | ac1970fb | Avi Kivity | * @buf: buffer with the data transferred
|
1968 | ac1970fb | Avi Kivity | */
|
1969 | a8170e5e | Avi Kivity | void address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len) |
1970 | ac1970fb | Avi Kivity | { |
1971 | ac1970fb | Avi Kivity | address_space_rw(as, addr, buf, len, false);
|
1972 | ac1970fb | Avi Kivity | } |
1973 | ac1970fb | Avi Kivity | |
1974 | ac1970fb | Avi Kivity | |
1975 | a8170e5e | Avi Kivity | void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
|
1976 | ac1970fb | Avi Kivity | int len, int is_write) |
1977 | ac1970fb | Avi Kivity | { |
1978 | ac1970fb | Avi Kivity | return address_space_rw(&address_space_memory, addr, buf, len, is_write);
|
1979 | ac1970fb | Avi Kivity | } |
1980 | ac1970fb | Avi Kivity | |
1981 | d0ecd2aa | bellard | /* used for ROM loading : can write in RAM and ROM */
|
1982 | a8170e5e | Avi Kivity | void cpu_physical_memory_write_rom(hwaddr addr,
|
1983 | d0ecd2aa | bellard | const uint8_t *buf, int len) |
1984 | d0ecd2aa | bellard | { |
1985 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = address_space_memory.dispatch; |
1986 | d0ecd2aa | bellard | int l;
|
1987 | d0ecd2aa | bellard | uint8_t *ptr; |
1988 | a8170e5e | Avi Kivity | hwaddr page; |
1989 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
1990 | 3b46e624 | ths | |
1991 | d0ecd2aa | bellard | while (len > 0) { |
1992 | d0ecd2aa | bellard | page = addr & TARGET_PAGE_MASK; |
1993 | d0ecd2aa | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
1994 | d0ecd2aa | bellard | if (l > len)
|
1995 | d0ecd2aa | bellard | l = len; |
1996 | ac1970fb | Avi Kivity | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
1997 | 3b46e624 | ths | |
1998 | cc5bea60 | Blue Swirl | if (!(memory_region_is_ram(section->mr) ||
|
1999 | cc5bea60 | Blue Swirl | memory_region_is_romd(section->mr))) { |
2000 | d0ecd2aa | bellard | /* do nothing */
|
2001 | d0ecd2aa | bellard | } else {
|
2002 | d0ecd2aa | bellard | unsigned long addr1; |
2003 | f3705d53 | Avi Kivity | addr1 = memory_region_get_ram_addr(section->mr) |
2004 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
2005 | d0ecd2aa | bellard | /* ROM/RAM case */
|
2006 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
2007 | d0ecd2aa | bellard | memcpy(ptr, buf, l); |
2008 | 51d7a9eb | Anthony PERARD | invalidate_and_set_dirty(addr1, l); |
2009 | 050a0ddf | Anthony PERARD | qemu_put_ram_ptr(ptr); |
2010 | d0ecd2aa | bellard | } |
2011 | d0ecd2aa | bellard | len -= l; |
2012 | d0ecd2aa | bellard | buf += l; |
2013 | d0ecd2aa | bellard | addr += l; |
2014 | d0ecd2aa | bellard | } |
2015 | d0ecd2aa | bellard | } |
2016 | d0ecd2aa | bellard | |
2017 | 6d16c2f8 | aliguori | typedef struct { |
2018 | 6d16c2f8 | aliguori | void *buffer;
|
2019 | a8170e5e | Avi Kivity | hwaddr addr; |
2020 | a8170e5e | Avi Kivity | hwaddr len; |
2021 | 6d16c2f8 | aliguori | } BounceBuffer; |
2022 | 6d16c2f8 | aliguori | |
2023 | 6d16c2f8 | aliguori | static BounceBuffer bounce;
|
2024 | 6d16c2f8 | aliguori | |
2025 | ba223c29 | aliguori | typedef struct MapClient { |
2026 | ba223c29 | aliguori | void *opaque;
|
2027 | ba223c29 | aliguori | void (*callback)(void *opaque); |
2028 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(MapClient) link; |
2029 | ba223c29 | aliguori | } MapClient; |
2030 | ba223c29 | aliguori | |
2031 | 72cf2d4f | Blue Swirl | static QLIST_HEAD(map_client_list, MapClient) map_client_list
|
2032 | 72cf2d4f | Blue Swirl | = QLIST_HEAD_INITIALIZER(map_client_list); |
2033 | ba223c29 | aliguori | |
2034 | ba223c29 | aliguori | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
2035 | ba223c29 | aliguori | { |
2036 | 7267c094 | Anthony Liguori | MapClient *client = g_malloc(sizeof(*client));
|
2037 | ba223c29 | aliguori | |
2038 | ba223c29 | aliguori | client->opaque = opaque; |
2039 | ba223c29 | aliguori | client->callback = callback; |
2040 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&map_client_list, client, link); |
2041 | ba223c29 | aliguori | return client;
|
2042 | ba223c29 | aliguori | } |
2043 | ba223c29 | aliguori | |
2044 | 8b9c99d9 | Blue Swirl | static void cpu_unregister_map_client(void *_client) |
2045 | ba223c29 | aliguori | { |
2046 | ba223c29 | aliguori | MapClient *client = (MapClient *)_client; |
2047 | ba223c29 | aliguori | |
2048 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(client, link); |
2049 | 7267c094 | Anthony Liguori | g_free(client); |
2050 | ba223c29 | aliguori | } |
2051 | ba223c29 | aliguori | |
2052 | ba223c29 | aliguori | static void cpu_notify_map_clients(void) |
2053 | ba223c29 | aliguori | { |
2054 | ba223c29 | aliguori | MapClient *client; |
2055 | ba223c29 | aliguori | |
2056 | 72cf2d4f | Blue Swirl | while (!QLIST_EMPTY(&map_client_list)) {
|
2057 | 72cf2d4f | Blue Swirl | client = QLIST_FIRST(&map_client_list); |
2058 | ba223c29 | aliguori | client->callback(client->opaque); |
2059 | 34d5e948 | Isaku Yamahata | cpu_unregister_map_client(client); |
2060 | ba223c29 | aliguori | } |
2061 | ba223c29 | aliguori | } |
2062 | ba223c29 | aliguori | |
2063 | 6d16c2f8 | aliguori | /* Map a physical memory region into a host virtual address.
|
2064 | 6d16c2f8 | aliguori | * May map a subset of the requested range, given by and returned in *plen.
|
2065 | 6d16c2f8 | aliguori | * May return NULL if resources needed to perform the mapping are exhausted.
|
2066 | 6d16c2f8 | aliguori | * Use only for reads OR writes - not for read-modify-write operations.
|
2067 | ba223c29 | aliguori | * Use cpu_register_map_client() to know when retrying the map operation is
|
2068 | ba223c29 | aliguori | * likely to succeed.
|
2069 | 6d16c2f8 | aliguori | */
|
2070 | ac1970fb | Avi Kivity | void *address_space_map(AddressSpace *as,
|
2071 | a8170e5e | Avi Kivity | hwaddr addr, |
2072 | a8170e5e | Avi Kivity | hwaddr *plen, |
2073 | ac1970fb | Avi Kivity | bool is_write)
|
2074 | 6d16c2f8 | aliguori | { |
2075 | ac1970fb | Avi Kivity | AddressSpaceDispatch *d = as->dispatch; |
2076 | a8170e5e | Avi Kivity | hwaddr len = *plen; |
2077 | a8170e5e | Avi Kivity | hwaddr todo = 0;
|
2078 | 6d16c2f8 | aliguori | int l;
|
2079 | a8170e5e | Avi Kivity | hwaddr page; |
2080 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2081 | f15fbc4b | Anthony PERARD | ram_addr_t raddr = RAM_ADDR_MAX; |
2082 | 8ab934f9 | Stefano Stabellini | ram_addr_t rlen; |
2083 | 8ab934f9 | Stefano Stabellini | void *ret;
|
2084 | 6d16c2f8 | aliguori | |
2085 | 6d16c2f8 | aliguori | while (len > 0) { |
2086 | 6d16c2f8 | aliguori | page = addr & TARGET_PAGE_MASK; |
2087 | 6d16c2f8 | aliguori | l = (page + TARGET_PAGE_SIZE) - addr; |
2088 | 6d16c2f8 | aliguori | if (l > len)
|
2089 | 6d16c2f8 | aliguori | l = len; |
2090 | ac1970fb | Avi Kivity | section = phys_page_find(d, page >> TARGET_PAGE_BITS); |
2091 | 6d16c2f8 | aliguori | |
2092 | f3705d53 | Avi Kivity | if (!(memory_region_is_ram(section->mr) && !section->readonly)) {
|
2093 | 38bee5dc | Stefano Stabellini | if (todo || bounce.buffer) {
|
2094 | 6d16c2f8 | aliguori | break;
|
2095 | 6d16c2f8 | aliguori | } |
2096 | 6d16c2f8 | aliguori | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
2097 | 6d16c2f8 | aliguori | bounce.addr = addr; |
2098 | 6d16c2f8 | aliguori | bounce.len = l; |
2099 | 6d16c2f8 | aliguori | if (!is_write) {
|
2100 | ac1970fb | Avi Kivity | address_space_read(as, addr, bounce.buffer, l); |
2101 | 6d16c2f8 | aliguori | } |
2102 | 38bee5dc | Stefano Stabellini | |
2103 | 38bee5dc | Stefano Stabellini | *plen = l; |
2104 | 38bee5dc | Stefano Stabellini | return bounce.buffer;
|
2105 | 6d16c2f8 | aliguori | } |
2106 | 8ab934f9 | Stefano Stabellini | if (!todo) {
|
2107 | f3705d53 | Avi Kivity | raddr = memory_region_get_ram_addr(section->mr) |
2108 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
2109 | 8ab934f9 | Stefano Stabellini | } |
2110 | 6d16c2f8 | aliguori | |
2111 | 6d16c2f8 | aliguori | len -= l; |
2112 | 6d16c2f8 | aliguori | addr += l; |
2113 | 38bee5dc | Stefano Stabellini | todo += l; |
2114 | 6d16c2f8 | aliguori | } |
2115 | 8ab934f9 | Stefano Stabellini | rlen = todo; |
2116 | 8ab934f9 | Stefano Stabellini | ret = qemu_ram_ptr_length(raddr, &rlen); |
2117 | 8ab934f9 | Stefano Stabellini | *plen = rlen; |
2118 | 8ab934f9 | Stefano Stabellini | return ret;
|
2119 | 6d16c2f8 | aliguori | } |
2120 | 6d16c2f8 | aliguori | |
2121 | ac1970fb | Avi Kivity | /* Unmaps a memory region previously mapped by address_space_map().
|
2122 | 6d16c2f8 | aliguori | * Will also mark the memory as dirty if is_write == 1. access_len gives
|
2123 | 6d16c2f8 | aliguori | * the amount of memory that was actually read or written by the caller.
|
2124 | 6d16c2f8 | aliguori | */
|
2125 | a8170e5e | Avi Kivity | void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len, |
2126 | a8170e5e | Avi Kivity | int is_write, hwaddr access_len)
|
2127 | 6d16c2f8 | aliguori | { |
2128 | 6d16c2f8 | aliguori | if (buffer != bounce.buffer) {
|
2129 | 6d16c2f8 | aliguori | if (is_write) {
|
2130 | e890261f | Marcelo Tosatti | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
2131 | 6d16c2f8 | aliguori | while (access_len) {
|
2132 | 6d16c2f8 | aliguori | unsigned l;
|
2133 | 6d16c2f8 | aliguori | l = TARGET_PAGE_SIZE; |
2134 | 6d16c2f8 | aliguori | if (l > access_len)
|
2135 | 6d16c2f8 | aliguori | l = access_len; |
2136 | 51d7a9eb | Anthony PERARD | invalidate_and_set_dirty(addr1, l); |
2137 | 6d16c2f8 | aliguori | addr1 += l; |
2138 | 6d16c2f8 | aliguori | access_len -= l; |
2139 | 6d16c2f8 | aliguori | } |
2140 | 6d16c2f8 | aliguori | } |
2141 | 868bb33f | Jan Kiszka | if (xen_enabled()) {
|
2142 | e41d7c69 | Jan Kiszka | xen_invalidate_map_cache_entry(buffer); |
2143 | 050a0ddf | Anthony PERARD | } |
2144 | 6d16c2f8 | aliguori | return;
|
2145 | 6d16c2f8 | aliguori | } |
2146 | 6d16c2f8 | aliguori | if (is_write) {
|
2147 | ac1970fb | Avi Kivity | address_space_write(as, bounce.addr, bounce.buffer, access_len); |
2148 | 6d16c2f8 | aliguori | } |
2149 | f8a83245 | Herve Poussineau | qemu_vfree(bounce.buffer); |
2150 | 6d16c2f8 | aliguori | bounce.buffer = NULL;
|
2151 | ba223c29 | aliguori | cpu_notify_map_clients(); |
2152 | 6d16c2f8 | aliguori | } |
2153 | d0ecd2aa | bellard | |
2154 | a8170e5e | Avi Kivity | void *cpu_physical_memory_map(hwaddr addr,
|
2155 | a8170e5e | Avi Kivity | hwaddr *plen, |
2156 | ac1970fb | Avi Kivity | int is_write)
|
2157 | ac1970fb | Avi Kivity | { |
2158 | ac1970fb | Avi Kivity | return address_space_map(&address_space_memory, addr, plen, is_write);
|
2159 | ac1970fb | Avi Kivity | } |
2160 | ac1970fb | Avi Kivity | |
2161 | a8170e5e | Avi Kivity | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
2162 | a8170e5e | Avi Kivity | int is_write, hwaddr access_len)
|
2163 | ac1970fb | Avi Kivity | { |
2164 | ac1970fb | Avi Kivity | return address_space_unmap(&address_space_memory, buffer, len, is_write, access_len);
|
2165 | ac1970fb | Avi Kivity | } |
2166 | ac1970fb | Avi Kivity | |
2167 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
2168 | a8170e5e | Avi Kivity | static inline uint32_t ldl_phys_internal(hwaddr addr, |
2169 | 1e78bcc1 | Alexander Graf | enum device_endian endian)
|
2170 | 8df1cd07 | bellard | { |
2171 | 8df1cd07 | bellard | uint8_t *ptr; |
2172 | 8df1cd07 | bellard | uint32_t val; |
2173 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2174 | 8df1cd07 | bellard | |
2175 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2176 | 3b46e624 | ths | |
2177 | cc5bea60 | Blue Swirl | if (!(memory_region_is_ram(section->mr) ||
|
2178 | cc5bea60 | Blue Swirl | memory_region_is_romd(section->mr))) { |
2179 | 8df1cd07 | bellard | /* I/O case */
|
2180 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2181 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr, 4);
|
2182 | 1e78bcc1 | Alexander Graf | #if defined(TARGET_WORDS_BIGENDIAN)
|
2183 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_LITTLE_ENDIAN) {
|
2184 | 1e78bcc1 | Alexander Graf | val = bswap32(val); |
2185 | 1e78bcc1 | Alexander Graf | } |
2186 | 1e78bcc1 | Alexander Graf | #else
|
2187 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_BIG_ENDIAN) {
|
2188 | 1e78bcc1 | Alexander Graf | val = bswap32(val); |
2189 | 1e78bcc1 | Alexander Graf | } |
2190 | 1e78bcc1 | Alexander Graf | #endif
|
2191 | 8df1cd07 | bellard | } else {
|
2192 | 8df1cd07 | bellard | /* RAM case */
|
2193 | f3705d53 | Avi Kivity | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
2194 | 06ef3525 | Avi Kivity | & TARGET_PAGE_MASK) |
2195 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr)); |
2196 | 1e78bcc1 | Alexander Graf | switch (endian) {
|
2197 | 1e78bcc1 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
2198 | 1e78bcc1 | Alexander Graf | val = ldl_le_p(ptr); |
2199 | 1e78bcc1 | Alexander Graf | break;
|
2200 | 1e78bcc1 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
2201 | 1e78bcc1 | Alexander Graf | val = ldl_be_p(ptr); |
2202 | 1e78bcc1 | Alexander Graf | break;
|
2203 | 1e78bcc1 | Alexander Graf | default:
|
2204 | 1e78bcc1 | Alexander Graf | val = ldl_p(ptr); |
2205 | 1e78bcc1 | Alexander Graf | break;
|
2206 | 1e78bcc1 | Alexander Graf | } |
2207 | 8df1cd07 | bellard | } |
2208 | 8df1cd07 | bellard | return val;
|
2209 | 8df1cd07 | bellard | } |
2210 | 8df1cd07 | bellard | |
2211 | a8170e5e | Avi Kivity | uint32_t ldl_phys(hwaddr addr) |
2212 | 1e78bcc1 | Alexander Graf | { |
2213 | 1e78bcc1 | Alexander Graf | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN);
|
2214 | 1e78bcc1 | Alexander Graf | } |
2215 | 1e78bcc1 | Alexander Graf | |
2216 | a8170e5e | Avi Kivity | uint32_t ldl_le_phys(hwaddr addr) |
2217 | 1e78bcc1 | Alexander Graf | { |
2218 | 1e78bcc1 | Alexander Graf | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN);
|
2219 | 1e78bcc1 | Alexander Graf | } |
2220 | 1e78bcc1 | Alexander Graf | |
2221 | a8170e5e | Avi Kivity | uint32_t ldl_be_phys(hwaddr addr) |
2222 | 1e78bcc1 | Alexander Graf | { |
2223 | 1e78bcc1 | Alexander Graf | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN);
|
2224 | 1e78bcc1 | Alexander Graf | } |
2225 | 1e78bcc1 | Alexander Graf | |
2226 | 84b7b8e7 | bellard | /* warning: addr must be aligned */
|
2227 | a8170e5e | Avi Kivity | static inline uint64_t ldq_phys_internal(hwaddr addr, |
2228 | 1e78bcc1 | Alexander Graf | enum device_endian endian)
|
2229 | 84b7b8e7 | bellard | { |
2230 | 84b7b8e7 | bellard | uint8_t *ptr; |
2231 | 84b7b8e7 | bellard | uint64_t val; |
2232 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2233 | 84b7b8e7 | bellard | |
2234 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2235 | 3b46e624 | ths | |
2236 | cc5bea60 | Blue Swirl | if (!(memory_region_is_ram(section->mr) ||
|
2237 | cc5bea60 | Blue Swirl | memory_region_is_romd(section->mr))) { |
2238 | 84b7b8e7 | bellard | /* I/O case */
|
2239 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2240 | 1e78bcc1 | Alexander Graf | |
2241 | 1e78bcc1 | Alexander Graf | /* XXX This is broken when device endian != cpu endian.
|
2242 | 1e78bcc1 | Alexander Graf | Fix and add "endian" variable check */
|
2243 | 84b7b8e7 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
2244 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr, 4) << 32; |
2245 | 37ec01d4 | Avi Kivity | val |= io_mem_read(section->mr, addr + 4, 4); |
2246 | 84b7b8e7 | bellard | #else
|
2247 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr, 4);
|
2248 | 37ec01d4 | Avi Kivity | val |= io_mem_read(section->mr, addr + 4, 4) << 32; |
2249 | 84b7b8e7 | bellard | #endif
|
2250 | 84b7b8e7 | bellard | } else {
|
2251 | 84b7b8e7 | bellard | /* RAM case */
|
2252 | f3705d53 | Avi Kivity | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
2253 | 06ef3525 | Avi Kivity | & TARGET_PAGE_MASK) |
2254 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr)); |
2255 | 1e78bcc1 | Alexander Graf | switch (endian) {
|
2256 | 1e78bcc1 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
2257 | 1e78bcc1 | Alexander Graf | val = ldq_le_p(ptr); |
2258 | 1e78bcc1 | Alexander Graf | break;
|
2259 | 1e78bcc1 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
2260 | 1e78bcc1 | Alexander Graf | val = ldq_be_p(ptr); |
2261 | 1e78bcc1 | Alexander Graf | break;
|
2262 | 1e78bcc1 | Alexander Graf | default:
|
2263 | 1e78bcc1 | Alexander Graf | val = ldq_p(ptr); |
2264 | 1e78bcc1 | Alexander Graf | break;
|
2265 | 1e78bcc1 | Alexander Graf | } |
2266 | 84b7b8e7 | bellard | } |
2267 | 84b7b8e7 | bellard | return val;
|
2268 | 84b7b8e7 | bellard | } |
2269 | 84b7b8e7 | bellard | |
2270 | a8170e5e | Avi Kivity | uint64_t ldq_phys(hwaddr addr) |
2271 | 1e78bcc1 | Alexander Graf | { |
2272 | 1e78bcc1 | Alexander Graf | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN);
|
2273 | 1e78bcc1 | Alexander Graf | } |
2274 | 1e78bcc1 | Alexander Graf | |
2275 | a8170e5e | Avi Kivity | uint64_t ldq_le_phys(hwaddr addr) |
2276 | 1e78bcc1 | Alexander Graf | { |
2277 | 1e78bcc1 | Alexander Graf | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN);
|
2278 | 1e78bcc1 | Alexander Graf | } |
2279 | 1e78bcc1 | Alexander Graf | |
2280 | a8170e5e | Avi Kivity | uint64_t ldq_be_phys(hwaddr addr) |
2281 | 1e78bcc1 | Alexander Graf | { |
2282 | 1e78bcc1 | Alexander Graf | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN);
|
2283 | 1e78bcc1 | Alexander Graf | } |
2284 | 1e78bcc1 | Alexander Graf | |
2285 | aab33094 | bellard | /* XXX: optimize */
|
2286 | a8170e5e | Avi Kivity | uint32_t ldub_phys(hwaddr addr) |
2287 | aab33094 | bellard | { |
2288 | aab33094 | bellard | uint8_t val; |
2289 | aab33094 | bellard | cpu_physical_memory_read(addr, &val, 1);
|
2290 | aab33094 | bellard | return val;
|
2291 | aab33094 | bellard | } |
2292 | aab33094 | bellard | |
2293 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
2294 | a8170e5e | Avi Kivity | static inline uint32_t lduw_phys_internal(hwaddr addr, |
2295 | 1e78bcc1 | Alexander Graf | enum device_endian endian)
|
2296 | aab33094 | bellard | { |
2297 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
2298 | 733f0b02 | Michael S. Tsirkin | uint64_t val; |
2299 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2300 | 733f0b02 | Michael S. Tsirkin | |
2301 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2302 | 733f0b02 | Michael S. Tsirkin | |
2303 | cc5bea60 | Blue Swirl | if (!(memory_region_is_ram(section->mr) ||
|
2304 | cc5bea60 | Blue Swirl | memory_region_is_romd(section->mr))) { |
2305 | 733f0b02 | Michael S. Tsirkin | /* I/O case */
|
2306 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2307 | 37ec01d4 | Avi Kivity | val = io_mem_read(section->mr, addr, 2);
|
2308 | 1e78bcc1 | Alexander Graf | #if defined(TARGET_WORDS_BIGENDIAN)
|
2309 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_LITTLE_ENDIAN) {
|
2310 | 1e78bcc1 | Alexander Graf | val = bswap16(val); |
2311 | 1e78bcc1 | Alexander Graf | } |
2312 | 1e78bcc1 | Alexander Graf | #else
|
2313 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_BIG_ENDIAN) {
|
2314 | 1e78bcc1 | Alexander Graf | val = bswap16(val); |
2315 | 1e78bcc1 | Alexander Graf | } |
2316 | 1e78bcc1 | Alexander Graf | #endif
|
2317 | 733f0b02 | Michael S. Tsirkin | } else {
|
2318 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
2319 | f3705d53 | Avi Kivity | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
2320 | 06ef3525 | Avi Kivity | & TARGET_PAGE_MASK) |
2321 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr)); |
2322 | 1e78bcc1 | Alexander Graf | switch (endian) {
|
2323 | 1e78bcc1 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
2324 | 1e78bcc1 | Alexander Graf | val = lduw_le_p(ptr); |
2325 | 1e78bcc1 | Alexander Graf | break;
|
2326 | 1e78bcc1 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
2327 | 1e78bcc1 | Alexander Graf | val = lduw_be_p(ptr); |
2328 | 1e78bcc1 | Alexander Graf | break;
|
2329 | 1e78bcc1 | Alexander Graf | default:
|
2330 | 1e78bcc1 | Alexander Graf | val = lduw_p(ptr); |
2331 | 1e78bcc1 | Alexander Graf | break;
|
2332 | 1e78bcc1 | Alexander Graf | } |
2333 | 733f0b02 | Michael S. Tsirkin | } |
2334 | 733f0b02 | Michael S. Tsirkin | return val;
|
2335 | aab33094 | bellard | } |
2336 | aab33094 | bellard | |
2337 | a8170e5e | Avi Kivity | uint32_t lduw_phys(hwaddr addr) |
2338 | 1e78bcc1 | Alexander Graf | { |
2339 | 1e78bcc1 | Alexander Graf | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN);
|
2340 | 1e78bcc1 | Alexander Graf | } |
2341 | 1e78bcc1 | Alexander Graf | |
2342 | a8170e5e | Avi Kivity | uint32_t lduw_le_phys(hwaddr addr) |
2343 | 1e78bcc1 | Alexander Graf | { |
2344 | 1e78bcc1 | Alexander Graf | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN);
|
2345 | 1e78bcc1 | Alexander Graf | } |
2346 | 1e78bcc1 | Alexander Graf | |
2347 | a8170e5e | Avi Kivity | uint32_t lduw_be_phys(hwaddr addr) |
2348 | 1e78bcc1 | Alexander Graf | { |
2349 | 1e78bcc1 | Alexander Graf | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN);
|
2350 | 1e78bcc1 | Alexander Graf | } |
2351 | 1e78bcc1 | Alexander Graf | |
2352 | 8df1cd07 | bellard | /* warning: addr must be aligned. The ram page is not masked as dirty
|
2353 | 8df1cd07 | bellard | and the code inside is not invalidated. It is useful if the dirty
|
2354 | 8df1cd07 | bellard | bits are used to track modified PTEs */
|
2355 | a8170e5e | Avi Kivity | void stl_phys_notdirty(hwaddr addr, uint32_t val)
|
2356 | 8df1cd07 | bellard | { |
2357 | 8df1cd07 | bellard | uint8_t *ptr; |
2358 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2359 | 8df1cd07 | bellard | |
2360 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2361 | 3b46e624 | ths | |
2362 | f3705d53 | Avi Kivity | if (!memory_region_is_ram(section->mr) || section->readonly) {
|
2363 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2364 | f3705d53 | Avi Kivity | if (memory_region_is_ram(section->mr)) {
|
2365 | 37ec01d4 | Avi Kivity | section = &phys_sections[phys_section_rom]; |
2366 | 06ef3525 | Avi Kivity | } |
2367 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, val, 4);
|
2368 | 8df1cd07 | bellard | } else {
|
2369 | f3705d53 | Avi Kivity | unsigned long addr1 = (memory_region_get_ram_addr(section->mr) |
2370 | 06ef3525 | Avi Kivity | & TARGET_PAGE_MASK) |
2371 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
2372 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
2373 | 8df1cd07 | bellard | stl_p(ptr, val); |
2374 | 74576198 | aliguori | |
2375 | 74576198 | aliguori | if (unlikely(in_migration)) {
|
2376 | 74576198 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
2377 | 74576198 | aliguori | /* invalidate code */
|
2378 | 74576198 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
2379 | 74576198 | aliguori | /* set dirty bit */
|
2380 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
2381 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
2382 | 74576198 | aliguori | } |
2383 | 74576198 | aliguori | } |
2384 | 8df1cd07 | bellard | } |
2385 | 8df1cd07 | bellard | } |
2386 | 8df1cd07 | bellard | |
2387 | a8170e5e | Avi Kivity | void stq_phys_notdirty(hwaddr addr, uint64_t val)
|
2388 | bc98a7ef | j_mayer | { |
2389 | bc98a7ef | j_mayer | uint8_t *ptr; |
2390 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2391 | bc98a7ef | j_mayer | |
2392 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2393 | 3b46e624 | ths | |
2394 | f3705d53 | Avi Kivity | if (!memory_region_is_ram(section->mr) || section->readonly) {
|
2395 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2396 | f3705d53 | Avi Kivity | if (memory_region_is_ram(section->mr)) {
|
2397 | 37ec01d4 | Avi Kivity | section = &phys_sections[phys_section_rom]; |
2398 | 06ef3525 | Avi Kivity | } |
2399 | bc98a7ef | j_mayer | #ifdef TARGET_WORDS_BIGENDIAN
|
2400 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, val >> 32, 4); |
2401 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr + 4, (uint32_t)val, 4); |
2402 | bc98a7ef | j_mayer | #else
|
2403 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, (uint32_t)val, 4);
|
2404 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr + 4, val >> 32, 4); |
2405 | bc98a7ef | j_mayer | #endif
|
2406 | bc98a7ef | j_mayer | } else {
|
2407 | f3705d53 | Avi Kivity | ptr = qemu_get_ram_ptr((memory_region_get_ram_addr(section->mr) |
2408 | 06ef3525 | Avi Kivity | & TARGET_PAGE_MASK) |
2409 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr)); |
2410 | bc98a7ef | j_mayer | stq_p(ptr, val); |
2411 | bc98a7ef | j_mayer | } |
2412 | bc98a7ef | j_mayer | } |
2413 | bc98a7ef | j_mayer | |
2414 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
2415 | a8170e5e | Avi Kivity | static inline void stl_phys_internal(hwaddr addr, uint32_t val, |
2416 | 1e78bcc1 | Alexander Graf | enum device_endian endian)
|
2417 | 8df1cd07 | bellard | { |
2418 | 8df1cd07 | bellard | uint8_t *ptr; |
2419 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2420 | 8df1cd07 | bellard | |
2421 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2422 | 3b46e624 | ths | |
2423 | f3705d53 | Avi Kivity | if (!memory_region_is_ram(section->mr) || section->readonly) {
|
2424 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2425 | f3705d53 | Avi Kivity | if (memory_region_is_ram(section->mr)) {
|
2426 | 37ec01d4 | Avi Kivity | section = &phys_sections[phys_section_rom]; |
2427 | 06ef3525 | Avi Kivity | } |
2428 | 1e78bcc1 | Alexander Graf | #if defined(TARGET_WORDS_BIGENDIAN)
|
2429 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_LITTLE_ENDIAN) {
|
2430 | 1e78bcc1 | Alexander Graf | val = bswap32(val); |
2431 | 1e78bcc1 | Alexander Graf | } |
2432 | 1e78bcc1 | Alexander Graf | #else
|
2433 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_BIG_ENDIAN) {
|
2434 | 1e78bcc1 | Alexander Graf | val = bswap32(val); |
2435 | 1e78bcc1 | Alexander Graf | } |
2436 | 1e78bcc1 | Alexander Graf | #endif
|
2437 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, val, 4);
|
2438 | 8df1cd07 | bellard | } else {
|
2439 | 8df1cd07 | bellard | unsigned long addr1; |
2440 | f3705d53 | Avi Kivity | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
2441 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
2442 | 8df1cd07 | bellard | /* RAM case */
|
2443 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
2444 | 1e78bcc1 | Alexander Graf | switch (endian) {
|
2445 | 1e78bcc1 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
2446 | 1e78bcc1 | Alexander Graf | stl_le_p(ptr, val); |
2447 | 1e78bcc1 | Alexander Graf | break;
|
2448 | 1e78bcc1 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
2449 | 1e78bcc1 | Alexander Graf | stl_be_p(ptr, val); |
2450 | 1e78bcc1 | Alexander Graf | break;
|
2451 | 1e78bcc1 | Alexander Graf | default:
|
2452 | 1e78bcc1 | Alexander Graf | stl_p(ptr, val); |
2453 | 1e78bcc1 | Alexander Graf | break;
|
2454 | 1e78bcc1 | Alexander Graf | } |
2455 | 51d7a9eb | Anthony PERARD | invalidate_and_set_dirty(addr1, 4);
|
2456 | 8df1cd07 | bellard | } |
2457 | 8df1cd07 | bellard | } |
2458 | 8df1cd07 | bellard | |
2459 | a8170e5e | Avi Kivity | void stl_phys(hwaddr addr, uint32_t val)
|
2460 | 1e78bcc1 | Alexander Graf | { |
2461 | 1e78bcc1 | Alexander Graf | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
2462 | 1e78bcc1 | Alexander Graf | } |
2463 | 1e78bcc1 | Alexander Graf | |
2464 | a8170e5e | Avi Kivity | void stl_le_phys(hwaddr addr, uint32_t val)
|
2465 | 1e78bcc1 | Alexander Graf | { |
2466 | 1e78bcc1 | Alexander Graf | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
2467 | 1e78bcc1 | Alexander Graf | } |
2468 | 1e78bcc1 | Alexander Graf | |
2469 | a8170e5e | Avi Kivity | void stl_be_phys(hwaddr addr, uint32_t val)
|
2470 | 1e78bcc1 | Alexander Graf | { |
2471 | 1e78bcc1 | Alexander Graf | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
2472 | 1e78bcc1 | Alexander Graf | } |
2473 | 1e78bcc1 | Alexander Graf | |
2474 | aab33094 | bellard | /* XXX: optimize */
|
2475 | a8170e5e | Avi Kivity | void stb_phys(hwaddr addr, uint32_t val)
|
2476 | aab33094 | bellard | { |
2477 | aab33094 | bellard | uint8_t v = val; |
2478 | aab33094 | bellard | cpu_physical_memory_write(addr, &v, 1);
|
2479 | aab33094 | bellard | } |
2480 | aab33094 | bellard | |
2481 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
2482 | a8170e5e | Avi Kivity | static inline void stw_phys_internal(hwaddr addr, uint32_t val, |
2483 | 1e78bcc1 | Alexander Graf | enum device_endian endian)
|
2484 | aab33094 | bellard | { |
2485 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
2486 | f3705d53 | Avi Kivity | MemoryRegionSection *section; |
2487 | 733f0b02 | Michael S. Tsirkin | |
2488 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, addr >> TARGET_PAGE_BITS); |
2489 | 733f0b02 | Michael S. Tsirkin | |
2490 | f3705d53 | Avi Kivity | if (!memory_region_is_ram(section->mr) || section->readonly) {
|
2491 | cc5bea60 | Blue Swirl | addr = memory_region_section_addr(section, addr); |
2492 | f3705d53 | Avi Kivity | if (memory_region_is_ram(section->mr)) {
|
2493 | 37ec01d4 | Avi Kivity | section = &phys_sections[phys_section_rom]; |
2494 | 06ef3525 | Avi Kivity | } |
2495 | 1e78bcc1 | Alexander Graf | #if defined(TARGET_WORDS_BIGENDIAN)
|
2496 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_LITTLE_ENDIAN) {
|
2497 | 1e78bcc1 | Alexander Graf | val = bswap16(val); |
2498 | 1e78bcc1 | Alexander Graf | } |
2499 | 1e78bcc1 | Alexander Graf | #else
|
2500 | 1e78bcc1 | Alexander Graf | if (endian == DEVICE_BIG_ENDIAN) {
|
2501 | 1e78bcc1 | Alexander Graf | val = bswap16(val); |
2502 | 1e78bcc1 | Alexander Graf | } |
2503 | 1e78bcc1 | Alexander Graf | #endif
|
2504 | 37ec01d4 | Avi Kivity | io_mem_write(section->mr, addr, val, 2);
|
2505 | 733f0b02 | Michael S. Tsirkin | } else {
|
2506 | 733f0b02 | Michael S. Tsirkin | unsigned long addr1; |
2507 | f3705d53 | Avi Kivity | addr1 = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK) |
2508 | cc5bea60 | Blue Swirl | + memory_region_section_addr(section, addr); |
2509 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
2510 | 733f0b02 | Michael S. Tsirkin | ptr = qemu_get_ram_ptr(addr1); |
2511 | 1e78bcc1 | Alexander Graf | switch (endian) {
|
2512 | 1e78bcc1 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
2513 | 1e78bcc1 | Alexander Graf | stw_le_p(ptr, val); |
2514 | 1e78bcc1 | Alexander Graf | break;
|
2515 | 1e78bcc1 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
2516 | 1e78bcc1 | Alexander Graf | stw_be_p(ptr, val); |
2517 | 1e78bcc1 | Alexander Graf | break;
|
2518 | 1e78bcc1 | Alexander Graf | default:
|
2519 | 1e78bcc1 | Alexander Graf | stw_p(ptr, val); |
2520 | 1e78bcc1 | Alexander Graf | break;
|
2521 | 1e78bcc1 | Alexander Graf | } |
2522 | 51d7a9eb | Anthony PERARD | invalidate_and_set_dirty(addr1, 2);
|
2523 | 733f0b02 | Michael S. Tsirkin | } |
2524 | aab33094 | bellard | } |
2525 | aab33094 | bellard | |
2526 | a8170e5e | Avi Kivity | void stw_phys(hwaddr addr, uint32_t val)
|
2527 | 1e78bcc1 | Alexander Graf | { |
2528 | 1e78bcc1 | Alexander Graf | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
2529 | 1e78bcc1 | Alexander Graf | } |
2530 | 1e78bcc1 | Alexander Graf | |
2531 | a8170e5e | Avi Kivity | void stw_le_phys(hwaddr addr, uint32_t val)
|
2532 | 1e78bcc1 | Alexander Graf | { |
2533 | 1e78bcc1 | Alexander Graf | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
2534 | 1e78bcc1 | Alexander Graf | } |
2535 | 1e78bcc1 | Alexander Graf | |
2536 | a8170e5e | Avi Kivity | void stw_be_phys(hwaddr addr, uint32_t val)
|
2537 | 1e78bcc1 | Alexander Graf | { |
2538 | 1e78bcc1 | Alexander Graf | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
2539 | 1e78bcc1 | Alexander Graf | } |
2540 | 1e78bcc1 | Alexander Graf | |
2541 | aab33094 | bellard | /* XXX: optimize */
|
2542 | a8170e5e | Avi Kivity | void stq_phys(hwaddr addr, uint64_t val)
|
2543 | aab33094 | bellard | { |
2544 | aab33094 | bellard | val = tswap64(val); |
2545 | 71d2b725 | Stefan Weil | cpu_physical_memory_write(addr, &val, 8);
|
2546 | aab33094 | bellard | } |
2547 | aab33094 | bellard | |
2548 | a8170e5e | Avi Kivity | void stq_le_phys(hwaddr addr, uint64_t val)
|
2549 | 1e78bcc1 | Alexander Graf | { |
2550 | 1e78bcc1 | Alexander Graf | val = cpu_to_le64(val); |
2551 | 1e78bcc1 | Alexander Graf | cpu_physical_memory_write(addr, &val, 8);
|
2552 | 1e78bcc1 | Alexander Graf | } |
2553 | 1e78bcc1 | Alexander Graf | |
2554 | a8170e5e | Avi Kivity | void stq_be_phys(hwaddr addr, uint64_t val)
|
2555 | 1e78bcc1 | Alexander Graf | { |
2556 | 1e78bcc1 | Alexander Graf | val = cpu_to_be64(val); |
2557 | 1e78bcc1 | Alexander Graf | cpu_physical_memory_write(addr, &val, 8);
|
2558 | 1e78bcc1 | Alexander Graf | } |
2559 | 1e78bcc1 | Alexander Graf | |
2560 | 5e2972fd | aliguori | /* virtual memory access for debug (includes writing to ROM) */
|
2561 | 9349b4f9 | Andreas Färber | int cpu_memory_rw_debug(CPUArchState *env, target_ulong addr,
|
2562 | b448f2f3 | bellard | uint8_t *buf, int len, int is_write) |
2563 | 13eb76e0 | bellard | { |
2564 | 13eb76e0 | bellard | int l;
|
2565 | a8170e5e | Avi Kivity | hwaddr phys_addr; |
2566 | 9b3c35e0 | j_mayer | target_ulong page; |
2567 | 13eb76e0 | bellard | |
2568 | 13eb76e0 | bellard | while (len > 0) { |
2569 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
2570 | 13eb76e0 | bellard | phys_addr = cpu_get_phys_page_debug(env, page); |
2571 | 13eb76e0 | bellard | /* if no physical page mapped, return an error */
|
2572 | 13eb76e0 | bellard | if (phys_addr == -1) |
2573 | 13eb76e0 | bellard | return -1; |
2574 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
2575 | 13eb76e0 | bellard | if (l > len)
|
2576 | 13eb76e0 | bellard | l = len; |
2577 | 5e2972fd | aliguori | phys_addr += (addr & ~TARGET_PAGE_MASK); |
2578 | 5e2972fd | aliguori | if (is_write)
|
2579 | 5e2972fd | aliguori | cpu_physical_memory_write_rom(phys_addr, buf, l); |
2580 | 5e2972fd | aliguori | else
|
2581 | 5e2972fd | aliguori | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
2582 | 13eb76e0 | bellard | len -= l; |
2583 | 13eb76e0 | bellard | buf += l; |
2584 | 13eb76e0 | bellard | addr += l; |
2585 | 13eb76e0 | bellard | } |
2586 | 13eb76e0 | bellard | return 0; |
2587 | 13eb76e0 | bellard | } |
2588 | a68fe89c | Paul Brook | #endif
|
2589 | 13eb76e0 | bellard | |
2590 | 8e4a424b | Blue Swirl | #if !defined(CONFIG_USER_ONLY)
|
2591 | 8e4a424b | Blue Swirl | |
2592 | 8e4a424b | Blue Swirl | /*
|
2593 | 8e4a424b | Blue Swirl | * A helper function for the _utterly broken_ virtio device model to find out if
|
2594 | 8e4a424b | Blue Swirl | * it's running on a big endian machine. Don't do this at home kids!
|
2595 | 8e4a424b | Blue Swirl | */
|
2596 | 8e4a424b | Blue Swirl | bool virtio_is_big_endian(void); |
2597 | 8e4a424b | Blue Swirl | bool virtio_is_big_endian(void) |
2598 | 8e4a424b | Blue Swirl | { |
2599 | 8e4a424b | Blue Swirl | #if defined(TARGET_WORDS_BIGENDIAN)
|
2600 | 8e4a424b | Blue Swirl | return true; |
2601 | 8e4a424b | Blue Swirl | #else
|
2602 | 8e4a424b | Blue Swirl | return false; |
2603 | 8e4a424b | Blue Swirl | #endif
|
2604 | 8e4a424b | Blue Swirl | } |
2605 | 8e4a424b | Blue Swirl | |
2606 | 8e4a424b | Blue Swirl | #endif
|
2607 | 8e4a424b | Blue Swirl | |
2608 | 76f35538 | Wen Congyang | #ifndef CONFIG_USER_ONLY
|
2609 | a8170e5e | Avi Kivity | bool cpu_physical_memory_is_io(hwaddr phys_addr)
|
2610 | 76f35538 | Wen Congyang | { |
2611 | 76f35538 | Wen Congyang | MemoryRegionSection *section; |
2612 | 76f35538 | Wen Congyang | |
2613 | ac1970fb | Avi Kivity | section = phys_page_find(address_space_memory.dispatch, |
2614 | ac1970fb | Avi Kivity | phys_addr >> TARGET_PAGE_BITS); |
2615 | 76f35538 | Wen Congyang | |
2616 | 76f35538 | Wen Congyang | return !(memory_region_is_ram(section->mr) ||
|
2617 | 76f35538 | Wen Congyang | memory_region_is_romd(section->mr)); |
2618 | 76f35538 | Wen Congyang | } |
2619 | 76f35538 | Wen Congyang | #endif |