root / exec.c @ eabba580
History | View | Annotate | Download (126 kB)
1 | 54936004 | bellard | /*
|
---|---|---|---|
2 | fd6ce8f6 | bellard | * virtual page mapping and translated block handling
|
3 | 5fafdf24 | ths | *
|
4 | 54936004 | bellard | * Copyright (c) 2003 Fabrice Bellard
|
5 | 54936004 | bellard | *
|
6 | 54936004 | bellard | * This library is free software; you can redistribute it and/or
|
7 | 54936004 | bellard | * modify it under the terms of the GNU Lesser General Public
|
8 | 54936004 | bellard | * License as published by the Free Software Foundation; either
|
9 | 54936004 | bellard | * version 2 of the License, or (at your option) any later version.
|
10 | 54936004 | bellard | *
|
11 | 54936004 | bellard | * This library is distributed in the hope that it will be useful,
|
12 | 54936004 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | 54936004 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | 54936004 | bellard | * Lesser General Public License for more details.
|
15 | 54936004 | bellard | *
|
16 | 54936004 | bellard | * You should have received a copy of the GNU Lesser General Public
|
17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
18 | 54936004 | bellard | */
|
19 | 67b915a5 | bellard | #include "config.h" |
20 | d5a8f07c | bellard | #ifdef _WIN32
|
21 | d5a8f07c | bellard | #include <windows.h> |
22 | d5a8f07c | bellard | #else
|
23 | a98d49b1 | bellard | #include <sys/types.h> |
24 | d5a8f07c | bellard | #include <sys/mman.h> |
25 | d5a8f07c | bellard | #endif
|
26 | 54936004 | bellard | |
27 | 055403b2 | Stefan Weil | #include "qemu-common.h" |
28 | 6180a181 | bellard | #include "cpu.h" |
29 | 6180a181 | bellard | #include "exec-all.h" |
30 | b67d9a52 | bellard | #include "tcg.h" |
31 | b3c7724c | pbrook | #include "hw/hw.h" |
32 | cc9e98cb | Alex Williamson | #include "hw/qdev.h" |
33 | 74576198 | aliguori | #include "osdep.h" |
34 | 7ba1e619 | aliguori | #include "kvm.h" |
35 | 29e922b6 | Blue Swirl | #include "qemu-timer.h" |
36 | 53a5960a | pbrook | #if defined(CONFIG_USER_ONLY)
|
37 | 53a5960a | pbrook | #include <qemu.h> |
38 | fd052bf6 | Riku Voipio | #include <signal.h> |
39 | f01576f1 | Juergen Lock | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
|
40 | f01576f1 | Juergen Lock | #include <sys/param.h> |
41 | f01576f1 | Juergen Lock | #if __FreeBSD_version >= 700104 |
42 | f01576f1 | Juergen Lock | #define HAVE_KINFO_GETVMMAP
|
43 | f01576f1 | Juergen Lock | #define sigqueue sigqueue_freebsd /* avoid redefinition */ |
44 | f01576f1 | Juergen Lock | #include <sys/time.h> |
45 | f01576f1 | Juergen Lock | #include <sys/proc.h> |
46 | f01576f1 | Juergen Lock | #include <machine/profile.h> |
47 | f01576f1 | Juergen Lock | #define _KERNEL
|
48 | f01576f1 | Juergen Lock | #include <sys/user.h> |
49 | f01576f1 | Juergen Lock | #undef _KERNEL
|
50 | f01576f1 | Juergen Lock | #undef sigqueue
|
51 | f01576f1 | Juergen Lock | #include <libutil.h> |
52 | f01576f1 | Juergen Lock | #endif
|
53 | f01576f1 | Juergen Lock | #endif
|
54 | 53a5960a | pbrook | #endif
|
55 | 54936004 | bellard | |
56 | fd6ce8f6 | bellard | //#define DEBUG_TB_INVALIDATE
|
57 | 66e85a21 | bellard | //#define DEBUG_FLUSH
|
58 | 9fa3e853 | bellard | //#define DEBUG_TLB
|
59 | 67d3b957 | pbrook | //#define DEBUG_UNASSIGNED
|
60 | fd6ce8f6 | bellard | |
61 | fd6ce8f6 | bellard | /* make various TB consistency checks */
|
62 | 5fafdf24 | ths | //#define DEBUG_TB_CHECK
|
63 | 5fafdf24 | ths | //#define DEBUG_TLB_CHECK
|
64 | fd6ce8f6 | bellard | |
65 | 1196be37 | ths | //#define DEBUG_IOPORT
|
66 | db7b5426 | blueswir1 | //#define DEBUG_SUBPAGE
|
67 | 1196be37 | ths | |
68 | 99773bd4 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
69 | 99773bd4 | pbrook | /* TB consistency checks only implemented for usermode emulation. */
|
70 | 99773bd4 | pbrook | #undef DEBUG_TB_CHECK
|
71 | 99773bd4 | pbrook | #endif
|
72 | 99773bd4 | pbrook | |
73 | 9fa3e853 | bellard | #define SMC_BITMAP_USE_THRESHOLD 10 |
74 | 9fa3e853 | bellard | |
75 | bdaf78e0 | blueswir1 | static TranslationBlock *tbs;
|
76 | 24ab68ac | Stefan Weil | static int code_gen_max_blocks; |
77 | 9fa3e853 | bellard | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
78 | bdaf78e0 | blueswir1 | static int nb_tbs; |
79 | eb51d102 | bellard | /* any access to the tbs or the page table must use this lock */
|
80 | c227f099 | Anthony Liguori | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
81 | fd6ce8f6 | bellard | |
82 | 141ac468 | blueswir1 | #if defined(__arm__) || defined(__sparc_v9__)
|
83 | 141ac468 | blueswir1 | /* The prologue must be reachable with a direct jump. ARM and Sparc64
|
84 | 141ac468 | blueswir1 | have limited branch ranges (possibly also PPC) so place it in a
|
85 | d03d860b | blueswir1 | section close to code segment. */
|
86 | d03d860b | blueswir1 | #define code_gen_section \
|
87 | d03d860b | blueswir1 | __attribute__((__section__(".gen_code"))) \
|
88 | d03d860b | blueswir1 | __attribute__((aligned (32)))
|
89 | f8e2af11 | Stefan Weil | #elif defined(_WIN32)
|
90 | f8e2af11 | Stefan Weil | /* Maximum alignment for Win32 is 16. */
|
91 | f8e2af11 | Stefan Weil | #define code_gen_section \
|
92 | f8e2af11 | Stefan Weil | __attribute__((aligned (16)))
|
93 | d03d860b | blueswir1 | #else
|
94 | d03d860b | blueswir1 | #define code_gen_section \
|
95 | d03d860b | blueswir1 | __attribute__((aligned (32)))
|
96 | d03d860b | blueswir1 | #endif
|
97 | d03d860b | blueswir1 | |
98 | d03d860b | blueswir1 | uint8_t code_gen_prologue[1024] code_gen_section;
|
99 | bdaf78e0 | blueswir1 | static uint8_t *code_gen_buffer;
|
100 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_size; |
101 | 26a5f13b | bellard | /* threshold to flush the translated code buffer */
|
102 | bdaf78e0 | blueswir1 | static unsigned long code_gen_buffer_max_size; |
103 | 24ab68ac | Stefan Weil | static uint8_t *code_gen_ptr;
|
104 | fd6ce8f6 | bellard | |
105 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
106 | 9fa3e853 | bellard | int phys_ram_fd;
|
107 | 74576198 | aliguori | static int in_migration; |
108 | 94a6b54f | pbrook | |
109 | f471a17e | Alex Williamson | RAMList ram_list = { .blocks = QLIST_HEAD_INITIALIZER(ram_list) }; |
110 | e2eef170 | pbrook | #endif
|
111 | 9fa3e853 | bellard | |
112 | 6a00d601 | bellard | CPUState *first_cpu; |
113 | 6a00d601 | bellard | /* current CPU in the current thread. It is only valid inside
|
114 | 6a00d601 | bellard | cpu_exec() */
|
115 | 5fafdf24 | ths | CPUState *cpu_single_env; |
116 | 2e70f6ef | pbrook | /* 0 = Do not count executed instructions.
|
117 | bf20dc07 | ths | 1 = Precise instruction counting.
|
118 | 2e70f6ef | pbrook | 2 = Adaptive rate instruction counting. */
|
119 | 2e70f6ef | pbrook | int use_icount = 0; |
120 | 2e70f6ef | pbrook | /* Current instruction counter. While executing translated code this may
|
121 | 2e70f6ef | pbrook | include some instructions that have not yet been executed. */
|
122 | 2e70f6ef | pbrook | int64_t qemu_icount; |
123 | 6a00d601 | bellard | |
124 | 54936004 | bellard | typedef struct PageDesc { |
125 | 92e873b9 | bellard | /* list of TBs intersecting this ram page */
|
126 | fd6ce8f6 | bellard | TranslationBlock *first_tb; |
127 | 9fa3e853 | bellard | /* in order to optimize self modifying code, we count the number
|
128 | 9fa3e853 | bellard | of lookups we do to a given page to use a bitmap */
|
129 | 9fa3e853 | bellard | unsigned int code_write_count; |
130 | 9fa3e853 | bellard | uint8_t *code_bitmap; |
131 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
|
132 | 9fa3e853 | bellard | unsigned long flags; |
133 | 9fa3e853 | bellard | #endif
|
134 | 54936004 | bellard | } PageDesc; |
135 | 54936004 | bellard | |
136 | 41c1b1c9 | Paul Brook | /* In system mode we want L1_MAP to be based on ram offsets,
|
137 | 5cd2c5b6 | Richard Henderson | while in user mode we want it to be based on virtual addresses. */
|
138 | 5cd2c5b6 | Richard Henderson | #if !defined(CONFIG_USER_ONLY)
|
139 | 41c1b1c9 | Paul Brook | #if HOST_LONG_BITS < TARGET_PHYS_ADDR_SPACE_BITS
|
140 | 41c1b1c9 | Paul Brook | # define L1_MAP_ADDR_SPACE_BITS HOST_LONG_BITS
|
141 | 41c1b1c9 | Paul Brook | #else
|
142 | 5cd2c5b6 | Richard Henderson | # define L1_MAP_ADDR_SPACE_BITS TARGET_PHYS_ADDR_SPACE_BITS
|
143 | 41c1b1c9 | Paul Brook | #endif
|
144 | bedb69ea | j_mayer | #else
|
145 | 5cd2c5b6 | Richard Henderson | # define L1_MAP_ADDR_SPACE_BITS TARGET_VIRT_ADDR_SPACE_BITS
|
146 | bedb69ea | j_mayer | #endif
|
147 | 54936004 | bellard | |
148 | 5cd2c5b6 | Richard Henderson | /* Size of the L2 (and L3, etc) page tables. */
|
149 | 5cd2c5b6 | Richard Henderson | #define L2_BITS 10 |
150 | 54936004 | bellard | #define L2_SIZE (1 << L2_BITS) |
151 | 54936004 | bellard | |
152 | 5cd2c5b6 | Richard Henderson | /* The bits remaining after N lower levels of page tables. */
|
153 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS_REM \
|
154 | 5cd2c5b6 | Richard Henderson | ((TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) |
155 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS_REM \
|
156 | 5cd2c5b6 | Richard Henderson | ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS) |
157 | 5cd2c5b6 | Richard Henderson | |
158 | 5cd2c5b6 | Richard Henderson | /* Size of the L1 page table. Avoid silly small sizes. */
|
159 | 5cd2c5b6 | Richard Henderson | #if P_L1_BITS_REM < 4 |
160 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS (P_L1_BITS_REM + L2_BITS)
|
161 | 5cd2c5b6 | Richard Henderson | #else
|
162 | 5cd2c5b6 | Richard Henderson | #define P_L1_BITS P_L1_BITS_REM
|
163 | 5cd2c5b6 | Richard Henderson | #endif
|
164 | 5cd2c5b6 | Richard Henderson | |
165 | 5cd2c5b6 | Richard Henderson | #if V_L1_BITS_REM < 4 |
166 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS (V_L1_BITS_REM + L2_BITS)
|
167 | 5cd2c5b6 | Richard Henderson | #else
|
168 | 5cd2c5b6 | Richard Henderson | #define V_L1_BITS V_L1_BITS_REM
|
169 | 5cd2c5b6 | Richard Henderson | #endif
|
170 | 5cd2c5b6 | Richard Henderson | |
171 | 5cd2c5b6 | Richard Henderson | #define P_L1_SIZE ((target_phys_addr_t)1 << P_L1_BITS) |
172 | 5cd2c5b6 | Richard Henderson | #define V_L1_SIZE ((target_ulong)1 << V_L1_BITS) |
173 | 5cd2c5b6 | Richard Henderson | |
174 | 5cd2c5b6 | Richard Henderson | #define P_L1_SHIFT (TARGET_PHYS_ADDR_SPACE_BITS - TARGET_PAGE_BITS - P_L1_BITS)
|
175 | 5cd2c5b6 | Richard Henderson | #define V_L1_SHIFT (L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS - V_L1_BITS)
|
176 | 5cd2c5b6 | Richard Henderson | |
177 | 83fb7adf | bellard | unsigned long qemu_real_host_page_size; |
178 | 83fb7adf | bellard | unsigned long qemu_host_page_bits; |
179 | 83fb7adf | bellard | unsigned long qemu_host_page_size; |
180 | 83fb7adf | bellard | unsigned long qemu_host_page_mask; |
181 | 54936004 | bellard | |
182 | 5cd2c5b6 | Richard Henderson | /* This is a multi-level map on the virtual address space.
|
183 | 5cd2c5b6 | Richard Henderson | The bottom level has pointers to PageDesc. */
|
184 | 5cd2c5b6 | Richard Henderson | static void *l1_map[V_L1_SIZE]; |
185 | 54936004 | bellard | |
186 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
187 | 41c1b1c9 | Paul Brook | typedef struct PhysPageDesc { |
188 | 41c1b1c9 | Paul Brook | /* offset in host memory of the page + io_index in the low bits */
|
189 | 41c1b1c9 | Paul Brook | ram_addr_t phys_offset; |
190 | 41c1b1c9 | Paul Brook | ram_addr_t region_offset; |
191 | 41c1b1c9 | Paul Brook | } PhysPageDesc; |
192 | 41c1b1c9 | Paul Brook | |
193 | 5cd2c5b6 | Richard Henderson | /* This is a multi-level map on the physical address space.
|
194 | 5cd2c5b6 | Richard Henderson | The bottom level has pointers to PhysPageDesc. */
|
195 | 5cd2c5b6 | Richard Henderson | static void *l1_phys_map[P_L1_SIZE]; |
196 | 6d9a1304 | Paul Brook | |
197 | e2eef170 | pbrook | static void io_mem_init(void); |
198 | e2eef170 | pbrook | |
199 | 33417e70 | bellard | /* io memory support */
|
200 | 33417e70 | bellard | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
|
201 | 33417e70 | bellard | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
|
202 | a4193c8a | bellard | void *io_mem_opaque[IO_MEM_NB_ENTRIES];
|
203 | 511d2b14 | blueswir1 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
204 | 6658ffb8 | pbrook | static int io_mem_watch; |
205 | 6658ffb8 | pbrook | #endif
|
206 | 33417e70 | bellard | |
207 | 34865134 | bellard | /* log support */
|
208 | 1e8b27ca | Juha Riihimรคki | #ifdef WIN32
|
209 | 1e8b27ca | Juha Riihimรคki | static const char *logfilename = "qemu.log"; |
210 | 1e8b27ca | Juha Riihimรคki | #else
|
211 | d9b630fd | blueswir1 | static const char *logfilename = "/tmp/qemu.log"; |
212 | 1e8b27ca | Juha Riihimรคki | #endif
|
213 | 34865134 | bellard | FILE *logfile; |
214 | 34865134 | bellard | int loglevel;
|
215 | e735b91c | pbrook | static int log_append = 0; |
216 | 34865134 | bellard | |
217 | e3db7226 | bellard | /* statistics */
|
218 | b3755a91 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
219 | e3db7226 | bellard | static int tlb_flush_count; |
220 | b3755a91 | Paul Brook | #endif
|
221 | e3db7226 | bellard | static int tb_flush_count; |
222 | e3db7226 | bellard | static int tb_phys_invalidate_count; |
223 | e3db7226 | bellard | |
224 | 7cb69cae | bellard | #ifdef _WIN32
|
225 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
226 | 7cb69cae | bellard | { |
227 | 7cb69cae | bellard | DWORD old_protect; |
228 | 7cb69cae | bellard | VirtualProtect(addr, size, |
229 | 7cb69cae | bellard | PAGE_EXECUTE_READWRITE, &old_protect); |
230 | 7cb69cae | bellard | |
231 | 7cb69cae | bellard | } |
232 | 7cb69cae | bellard | #else
|
233 | 7cb69cae | bellard | static void map_exec(void *addr, long size) |
234 | 7cb69cae | bellard | { |
235 | 4369415f | bellard | unsigned long start, end, page_size; |
236 | 7cb69cae | bellard | |
237 | 4369415f | bellard | page_size = getpagesize(); |
238 | 7cb69cae | bellard | start = (unsigned long)addr; |
239 | 4369415f | bellard | start &= ~(page_size - 1);
|
240 | 7cb69cae | bellard | |
241 | 7cb69cae | bellard | end = (unsigned long)addr + size; |
242 | 4369415f | bellard | end += page_size - 1;
|
243 | 4369415f | bellard | end &= ~(page_size - 1);
|
244 | 7cb69cae | bellard | |
245 | 7cb69cae | bellard | mprotect((void *)start, end - start,
|
246 | 7cb69cae | bellard | PROT_READ | PROT_WRITE | PROT_EXEC); |
247 | 7cb69cae | bellard | } |
248 | 7cb69cae | bellard | #endif
|
249 | 7cb69cae | bellard | |
250 | b346ff46 | bellard | static void page_init(void) |
251 | 54936004 | bellard | { |
252 | 83fb7adf | bellard | /* NOTE: we can always suppose that qemu_host_page_size >=
|
253 | 54936004 | bellard | TARGET_PAGE_SIZE */
|
254 | c2b48b69 | aliguori | #ifdef _WIN32
|
255 | c2b48b69 | aliguori | { |
256 | c2b48b69 | aliguori | SYSTEM_INFO system_info; |
257 | c2b48b69 | aliguori | |
258 | c2b48b69 | aliguori | GetSystemInfo(&system_info); |
259 | c2b48b69 | aliguori | qemu_real_host_page_size = system_info.dwPageSize; |
260 | c2b48b69 | aliguori | } |
261 | c2b48b69 | aliguori | #else
|
262 | c2b48b69 | aliguori | qemu_real_host_page_size = getpagesize(); |
263 | c2b48b69 | aliguori | #endif
|
264 | 83fb7adf | bellard | if (qemu_host_page_size == 0) |
265 | 83fb7adf | bellard | qemu_host_page_size = qemu_real_host_page_size; |
266 | 83fb7adf | bellard | if (qemu_host_page_size < TARGET_PAGE_SIZE)
|
267 | 83fb7adf | bellard | qemu_host_page_size = TARGET_PAGE_SIZE; |
268 | 83fb7adf | bellard | qemu_host_page_bits = 0;
|
269 | 83fb7adf | bellard | while ((1 << qemu_host_page_bits) < qemu_host_page_size) |
270 | 83fb7adf | bellard | qemu_host_page_bits++; |
271 | 83fb7adf | bellard | qemu_host_page_mask = ~(qemu_host_page_size - 1);
|
272 | 50a9569b | balrog | |
273 | 2e9a5713 | Paul Brook | #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
|
274 | 50a9569b | balrog | { |
275 | f01576f1 | Juergen Lock | #ifdef HAVE_KINFO_GETVMMAP
|
276 | f01576f1 | Juergen Lock | struct kinfo_vmentry *freep;
|
277 | f01576f1 | Juergen Lock | int i, cnt;
|
278 | f01576f1 | Juergen Lock | |
279 | f01576f1 | Juergen Lock | freep = kinfo_getvmmap(getpid(), &cnt); |
280 | f01576f1 | Juergen Lock | if (freep) {
|
281 | f01576f1 | Juergen Lock | mmap_lock(); |
282 | f01576f1 | Juergen Lock | for (i = 0; i < cnt; i++) { |
283 | f01576f1 | Juergen Lock | unsigned long startaddr, endaddr; |
284 | f01576f1 | Juergen Lock | |
285 | f01576f1 | Juergen Lock | startaddr = freep[i].kve_start; |
286 | f01576f1 | Juergen Lock | endaddr = freep[i].kve_end; |
287 | f01576f1 | Juergen Lock | if (h2g_valid(startaddr)) {
|
288 | f01576f1 | Juergen Lock | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; |
289 | f01576f1 | Juergen Lock | |
290 | f01576f1 | Juergen Lock | if (h2g_valid(endaddr)) {
|
291 | f01576f1 | Juergen Lock | endaddr = h2g(endaddr); |
292 | fd436907 | Aurelien Jarno | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
293 | f01576f1 | Juergen Lock | } else {
|
294 | f01576f1 | Juergen Lock | #if TARGET_ABI_BITS <= L1_MAP_ADDR_SPACE_BITS
|
295 | f01576f1 | Juergen Lock | endaddr = ~0ul;
|
296 | fd436907 | Aurelien Jarno | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
297 | f01576f1 | Juergen Lock | #endif
|
298 | f01576f1 | Juergen Lock | } |
299 | f01576f1 | Juergen Lock | } |
300 | f01576f1 | Juergen Lock | } |
301 | f01576f1 | Juergen Lock | free(freep); |
302 | f01576f1 | Juergen Lock | mmap_unlock(); |
303 | f01576f1 | Juergen Lock | } |
304 | f01576f1 | Juergen Lock | #else
|
305 | 50a9569b | balrog | FILE *f; |
306 | 50a9569b | balrog | |
307 | 0776590d | pbrook | last_brk = (unsigned long)sbrk(0); |
308 | 5cd2c5b6 | Richard Henderson | |
309 | fd436907 | Aurelien Jarno | f = fopen("/compat/linux/proc/self/maps", "r"); |
310 | 50a9569b | balrog | if (f) {
|
311 | 5cd2c5b6 | Richard Henderson | mmap_lock(); |
312 | 5cd2c5b6 | Richard Henderson | |
313 | 50a9569b | balrog | do {
|
314 | 5cd2c5b6 | Richard Henderson | unsigned long startaddr, endaddr; |
315 | 5cd2c5b6 | Richard Henderson | int n;
|
316 | 5cd2c5b6 | Richard Henderson | |
317 | 5cd2c5b6 | Richard Henderson | n = fscanf (f, "%lx-%lx %*[^\n]\n", &startaddr, &endaddr);
|
318 | 5cd2c5b6 | Richard Henderson | |
319 | 5cd2c5b6 | Richard Henderson | if (n == 2 && h2g_valid(startaddr)) { |
320 | 5cd2c5b6 | Richard Henderson | startaddr = h2g(startaddr) & TARGET_PAGE_MASK; |
321 | 5cd2c5b6 | Richard Henderson | |
322 | 5cd2c5b6 | Richard Henderson | if (h2g_valid(endaddr)) {
|
323 | 5cd2c5b6 | Richard Henderson | endaddr = h2g(endaddr); |
324 | 5cd2c5b6 | Richard Henderson | } else {
|
325 | 5cd2c5b6 | Richard Henderson | endaddr = ~0ul;
|
326 | 5cd2c5b6 | Richard Henderson | } |
327 | 5cd2c5b6 | Richard Henderson | page_set_flags(startaddr, endaddr, PAGE_RESERVED); |
328 | 50a9569b | balrog | } |
329 | 50a9569b | balrog | } while (!feof(f));
|
330 | 5cd2c5b6 | Richard Henderson | |
331 | 50a9569b | balrog | fclose(f); |
332 | 5cd2c5b6 | Richard Henderson | mmap_unlock(); |
333 | 50a9569b | balrog | } |
334 | f01576f1 | Juergen Lock | #endif
|
335 | 50a9569b | balrog | } |
336 | 50a9569b | balrog | #endif
|
337 | 54936004 | bellard | } |
338 | 54936004 | bellard | |
339 | 41c1b1c9 | Paul Brook | static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) |
340 | 54936004 | bellard | { |
341 | 41c1b1c9 | Paul Brook | PageDesc *pd; |
342 | 41c1b1c9 | Paul Brook | void **lp;
|
343 | 41c1b1c9 | Paul Brook | int i;
|
344 | 41c1b1c9 | Paul Brook | |
345 | 5cd2c5b6 | Richard Henderson | #if defined(CONFIG_USER_ONLY)
|
346 | 2e9a5713 | Paul Brook | /* We can't use qemu_malloc because it may recurse into a locked mutex. */
|
347 | 5cd2c5b6 | Richard Henderson | # define ALLOC(P, SIZE) \
|
348 | 5cd2c5b6 | Richard Henderson | do { \
|
349 | 5cd2c5b6 | Richard Henderson | P = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, \
|
350 | 5cd2c5b6 | Richard Henderson | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ |
351 | 5cd2c5b6 | Richard Henderson | } while (0) |
352 | 5cd2c5b6 | Richard Henderson | #else
|
353 | 5cd2c5b6 | Richard Henderson | # define ALLOC(P, SIZE) \
|
354 | 5cd2c5b6 | Richard Henderson | do { P = qemu_mallocz(SIZE); } while (0) |
355 | 17e2377a | pbrook | #endif
|
356 | 434929bf | aliguori | |
357 | 5cd2c5b6 | Richard Henderson | /* Level 1. Always allocated. */
|
358 | 5cd2c5b6 | Richard Henderson | lp = l1_map + ((index >> V_L1_SHIFT) & (V_L1_SIZE - 1));
|
359 | 5cd2c5b6 | Richard Henderson | |
360 | 5cd2c5b6 | Richard Henderson | /* Level 2..N-1. */
|
361 | 5cd2c5b6 | Richard Henderson | for (i = V_L1_SHIFT / L2_BITS - 1; i > 0; i--) { |
362 | 5cd2c5b6 | Richard Henderson | void **p = *lp;
|
363 | 5cd2c5b6 | Richard Henderson | |
364 | 5cd2c5b6 | Richard Henderson | if (p == NULL) { |
365 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
366 | 5cd2c5b6 | Richard Henderson | return NULL; |
367 | 5cd2c5b6 | Richard Henderson | } |
368 | 5cd2c5b6 | Richard Henderson | ALLOC(p, sizeof(void *) * L2_SIZE); |
369 | 5cd2c5b6 | Richard Henderson | *lp = p; |
370 | 17e2377a | pbrook | } |
371 | 5cd2c5b6 | Richard Henderson | |
372 | 5cd2c5b6 | Richard Henderson | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1));
|
373 | 5cd2c5b6 | Richard Henderson | } |
374 | 5cd2c5b6 | Richard Henderson | |
375 | 5cd2c5b6 | Richard Henderson | pd = *lp; |
376 | 5cd2c5b6 | Richard Henderson | if (pd == NULL) { |
377 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
378 | 5cd2c5b6 | Richard Henderson | return NULL; |
379 | 5cd2c5b6 | Richard Henderson | } |
380 | 5cd2c5b6 | Richard Henderson | ALLOC(pd, sizeof(PageDesc) * L2_SIZE);
|
381 | 5cd2c5b6 | Richard Henderson | *lp = pd; |
382 | 54936004 | bellard | } |
383 | 5cd2c5b6 | Richard Henderson | |
384 | 5cd2c5b6 | Richard Henderson | #undef ALLOC
|
385 | 5cd2c5b6 | Richard Henderson | |
386 | 5cd2c5b6 | Richard Henderson | return pd + (index & (L2_SIZE - 1)); |
387 | 54936004 | bellard | } |
388 | 54936004 | bellard | |
389 | 41c1b1c9 | Paul Brook | static inline PageDesc *page_find(tb_page_addr_t index) |
390 | 54936004 | bellard | { |
391 | 5cd2c5b6 | Richard Henderson | return page_find_alloc(index, 0); |
392 | fd6ce8f6 | bellard | } |
393 | fd6ce8f6 | bellard | |
394 | 6d9a1304 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
395 | c227f099 | Anthony Liguori | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
396 | 92e873b9 | bellard | { |
397 | e3f4e2a4 | pbrook | PhysPageDesc *pd; |
398 | 5cd2c5b6 | Richard Henderson | void **lp;
|
399 | 5cd2c5b6 | Richard Henderson | int i;
|
400 | 92e873b9 | bellard | |
401 | 5cd2c5b6 | Richard Henderson | /* Level 1. Always allocated. */
|
402 | 5cd2c5b6 | Richard Henderson | lp = l1_phys_map + ((index >> P_L1_SHIFT) & (P_L1_SIZE - 1));
|
403 | 108c49b8 | bellard | |
404 | 5cd2c5b6 | Richard Henderson | /* Level 2..N-1. */
|
405 | 5cd2c5b6 | Richard Henderson | for (i = P_L1_SHIFT / L2_BITS - 1; i > 0; i--) { |
406 | 5cd2c5b6 | Richard Henderson | void **p = *lp;
|
407 | 5cd2c5b6 | Richard Henderson | if (p == NULL) { |
408 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
409 | 5cd2c5b6 | Richard Henderson | return NULL; |
410 | 5cd2c5b6 | Richard Henderson | } |
411 | 5cd2c5b6 | Richard Henderson | *lp = p = qemu_mallocz(sizeof(void *) * L2_SIZE); |
412 | 5cd2c5b6 | Richard Henderson | } |
413 | 5cd2c5b6 | Richard Henderson | lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1));
|
414 | 108c49b8 | bellard | } |
415 | 5cd2c5b6 | Richard Henderson | |
416 | e3f4e2a4 | pbrook | pd = *lp; |
417 | 5cd2c5b6 | Richard Henderson | if (pd == NULL) { |
418 | e3f4e2a4 | pbrook | int i;
|
419 | 5cd2c5b6 | Richard Henderson | |
420 | 5cd2c5b6 | Richard Henderson | if (!alloc) {
|
421 | 108c49b8 | bellard | return NULL; |
422 | 5cd2c5b6 | Richard Henderson | } |
423 | 5cd2c5b6 | Richard Henderson | |
424 | 5cd2c5b6 | Richard Henderson | *lp = pd = qemu_malloc(sizeof(PhysPageDesc) * L2_SIZE);
|
425 | 5cd2c5b6 | Richard Henderson | |
426 | 67c4d23c | pbrook | for (i = 0; i < L2_SIZE; i++) { |
427 | 5cd2c5b6 | Richard Henderson | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
428 | 5cd2c5b6 | Richard Henderson | pd[i].region_offset = (index + i) << TARGET_PAGE_BITS; |
429 | 67c4d23c | pbrook | } |
430 | 92e873b9 | bellard | } |
431 | 5cd2c5b6 | Richard Henderson | |
432 | 5cd2c5b6 | Richard Henderson | return pd + (index & (L2_SIZE - 1)); |
433 | 92e873b9 | bellard | } |
434 | 92e873b9 | bellard | |
435 | c227f099 | Anthony Liguori | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
436 | 92e873b9 | bellard | { |
437 | 108c49b8 | bellard | return phys_page_find_alloc(index, 0); |
438 | 92e873b9 | bellard | } |
439 | 92e873b9 | bellard | |
440 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr); |
441 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
442 | 3a7d929e | bellard | target_ulong vaddr); |
443 | c8a706fe | pbrook | #define mmap_lock() do { } while(0) |
444 | c8a706fe | pbrook | #define mmap_unlock() do { } while(0) |
445 | 9fa3e853 | bellard | #endif
|
446 | fd6ce8f6 | bellard | |
447 | 4369415f | bellard | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
448 | 4369415f | bellard | |
449 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
450 | ccbb4d44 | Stuart Brady | /* Currently it is not recommended to allocate big chunks of data in
|
451 | 4369415f | bellard | user mode. It will change when a dedicated libc will be used */
|
452 | 4369415f | bellard | #define USE_STATIC_CODE_GEN_BUFFER
|
453 | 4369415f | bellard | #endif
|
454 | 4369415f | bellard | |
455 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
456 | ebf50fb3 | Aurelien Jarno | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE]
|
457 | ebf50fb3 | Aurelien Jarno | __attribute__((aligned (CODE_GEN_ALIGN))); |
458 | 4369415f | bellard | #endif
|
459 | 4369415f | bellard | |
460 | 8fcd3692 | blueswir1 | static void code_gen_alloc(unsigned long tb_size) |
461 | 26a5f13b | bellard | { |
462 | 4369415f | bellard | #ifdef USE_STATIC_CODE_GEN_BUFFER
|
463 | 4369415f | bellard | code_gen_buffer = static_code_gen_buffer; |
464 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
465 | 4369415f | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
466 | 4369415f | bellard | #else
|
467 | 26a5f13b | bellard | code_gen_buffer_size = tb_size; |
468 | 26a5f13b | bellard | if (code_gen_buffer_size == 0) { |
469 | 4369415f | bellard | #if defined(CONFIG_USER_ONLY)
|
470 | 4369415f | bellard | /* in user mode, phys_ram_size is not meaningful */
|
471 | 4369415f | bellard | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
472 | 4369415f | bellard | #else
|
473 | ccbb4d44 | Stuart Brady | /* XXX: needs adjustments */
|
474 | 94a6b54f | pbrook | code_gen_buffer_size = (unsigned long)(ram_size / 4); |
475 | 4369415f | bellard | #endif
|
476 | 26a5f13b | bellard | } |
477 | 26a5f13b | bellard | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE)
|
478 | 26a5f13b | bellard | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; |
479 | 26a5f13b | bellard | /* The code gen buffer location may have constraints depending on
|
480 | 26a5f13b | bellard | the host cpu and OS */
|
481 | 26a5f13b | bellard | #if defined(__linux__)
|
482 | 26a5f13b | bellard | { |
483 | 26a5f13b | bellard | int flags;
|
484 | 141ac468 | blueswir1 | void *start = NULL; |
485 | 141ac468 | blueswir1 | |
486 | 26a5f13b | bellard | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
487 | 26a5f13b | bellard | #if defined(__x86_64__)
|
488 | 26a5f13b | bellard | flags |= MAP_32BIT; |
489 | 26a5f13b | bellard | /* Cannot map more than that */
|
490 | 26a5f13b | bellard | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
491 | 26a5f13b | bellard | code_gen_buffer_size = (800 * 1024 * 1024); |
492 | 141ac468 | blueswir1 | #elif defined(__sparc_v9__)
|
493 | 141ac468 | blueswir1 | // Map the buffer below 2G, so we can use direct calls and branches
|
494 | 141ac468 | blueswir1 | flags |= MAP_FIXED; |
495 | 141ac468 | blueswir1 | start = (void *) 0x60000000UL; |
496 | 141ac468 | blueswir1 | if (code_gen_buffer_size > (512 * 1024 * 1024)) |
497 | 141ac468 | blueswir1 | code_gen_buffer_size = (512 * 1024 * 1024); |
498 | 1cb0661e | balrog | #elif defined(__arm__)
|
499 | 63d41246 | balrog | /* Map the buffer below 32M, so we can use direct calls and branches */
|
500 | 1cb0661e | balrog | flags |= MAP_FIXED; |
501 | 1cb0661e | balrog | start = (void *) 0x01000000UL; |
502 | 1cb0661e | balrog | if (code_gen_buffer_size > 16 * 1024 * 1024) |
503 | 1cb0661e | balrog | code_gen_buffer_size = 16 * 1024 * 1024; |
504 | eba0b893 | Richard Henderson | #elif defined(__s390x__)
|
505 | eba0b893 | Richard Henderson | /* Map the buffer so that we can use direct calls and branches. */
|
506 | eba0b893 | Richard Henderson | /* We have a +- 4GB range on the branches; leave some slop. */
|
507 | eba0b893 | Richard Henderson | if (code_gen_buffer_size > (3ul * 1024 * 1024 * 1024)) { |
508 | eba0b893 | Richard Henderson | code_gen_buffer_size = 3ul * 1024 * 1024 * 1024; |
509 | eba0b893 | Richard Henderson | } |
510 | eba0b893 | Richard Henderson | start = (void *)0x90000000UL; |
511 | 26a5f13b | bellard | #endif
|
512 | 141ac468 | blueswir1 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
513 | 141ac468 | blueswir1 | PROT_WRITE | PROT_READ | PROT_EXEC, |
514 | 26a5f13b | bellard | flags, -1, 0); |
515 | 26a5f13b | bellard | if (code_gen_buffer == MAP_FAILED) {
|
516 | 26a5f13b | bellard | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
517 | 26a5f13b | bellard | exit(1);
|
518 | 26a5f13b | bellard | } |
519 | 26a5f13b | bellard | } |
520 | a167ba50 | Aurelien Jarno | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
521 | 06e67a82 | aliguori | { |
522 | 06e67a82 | aliguori | int flags;
|
523 | 06e67a82 | aliguori | void *addr = NULL; |
524 | 06e67a82 | aliguori | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
525 | 06e67a82 | aliguori | #if defined(__x86_64__)
|
526 | 06e67a82 | aliguori | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume
|
527 | 06e67a82 | aliguori | * 0x40000000 is free */
|
528 | 06e67a82 | aliguori | flags |= MAP_FIXED; |
529 | 06e67a82 | aliguori | addr = (void *)0x40000000; |
530 | 06e67a82 | aliguori | /* Cannot map more than that */
|
531 | 06e67a82 | aliguori | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
532 | 06e67a82 | aliguori | code_gen_buffer_size = (800 * 1024 * 1024); |
533 | 06e67a82 | aliguori | #endif
|
534 | 06e67a82 | aliguori | code_gen_buffer = mmap(addr, code_gen_buffer_size, |
535 | 06e67a82 | aliguori | PROT_WRITE | PROT_READ | PROT_EXEC, |
536 | 06e67a82 | aliguori | flags, -1, 0); |
537 | 06e67a82 | aliguori | if (code_gen_buffer == MAP_FAILED) {
|
538 | 06e67a82 | aliguori | fprintf(stderr, "Could not allocate dynamic translator buffer\n");
|
539 | 06e67a82 | aliguori | exit(1);
|
540 | 06e67a82 | aliguori | } |
541 | 06e67a82 | aliguori | } |
542 | 26a5f13b | bellard | #else
|
543 | 26a5f13b | bellard | code_gen_buffer = qemu_malloc(code_gen_buffer_size); |
544 | 26a5f13b | bellard | map_exec(code_gen_buffer, code_gen_buffer_size); |
545 | 26a5f13b | bellard | #endif
|
546 | 4369415f | bellard | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
547 | 26a5f13b | bellard | map_exec(code_gen_prologue, sizeof(code_gen_prologue));
|
548 | 26a5f13b | bellard | code_gen_buffer_max_size = code_gen_buffer_size - |
549 | 239fda31 | Aurelien Jarno | (TCG_MAX_OP_SIZE * OPC_MAX_SIZE); |
550 | 26a5f13b | bellard | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
551 | 26a5f13b | bellard | tbs = qemu_malloc(code_gen_max_blocks * sizeof(TranslationBlock));
|
552 | 26a5f13b | bellard | } |
553 | 26a5f13b | bellard | |
554 | 26a5f13b | bellard | /* Must be called before using the QEMU cpus. 'tb_size' is the size
|
555 | 26a5f13b | bellard | (in bytes) allocated to the translation buffer. Zero means default
|
556 | 26a5f13b | bellard | size. */
|
557 | 26a5f13b | bellard | void cpu_exec_init_all(unsigned long tb_size) |
558 | 26a5f13b | bellard | { |
559 | 26a5f13b | bellard | cpu_gen_init(); |
560 | 26a5f13b | bellard | code_gen_alloc(tb_size); |
561 | 26a5f13b | bellard | code_gen_ptr = code_gen_buffer; |
562 | 4369415f | bellard | page_init(); |
563 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
564 | 26a5f13b | bellard | io_mem_init(); |
565 | e2eef170 | pbrook | #endif
|
566 | 9002ec79 | Richard Henderson | #if !defined(CONFIG_USER_ONLY) || !defined(CONFIG_USE_GUEST_BASE)
|
567 | 9002ec79 | Richard Henderson | /* There's no guest base to take into account, so go ahead and
|
568 | 9002ec79 | Richard Henderson | initialize the prologue now. */
|
569 | 9002ec79 | Richard Henderson | tcg_prologue_init(&tcg_ctx); |
570 | 9002ec79 | Richard Henderson | #endif
|
571 | 26a5f13b | bellard | } |
572 | 26a5f13b | bellard | |
573 | 9656f324 | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
574 | 9656f324 | pbrook | |
575 | e59fb374 | Juan Quintela | static int cpu_common_post_load(void *opaque, int version_id) |
576 | e7f4eff7 | Juan Quintela | { |
577 | e7f4eff7 | Juan Quintela | CPUState *env = opaque; |
578 | 9656f324 | pbrook | |
579 | 3098dba0 | aurel32 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the
|
580 | 3098dba0 | aurel32 | version_id is increased. */
|
581 | 3098dba0 | aurel32 | env->interrupt_request &= ~0x01;
|
582 | 9656f324 | pbrook | tlb_flush(env, 1);
|
583 | 9656f324 | pbrook | |
584 | 9656f324 | pbrook | return 0; |
585 | 9656f324 | pbrook | } |
586 | e7f4eff7 | Juan Quintela | |
587 | e7f4eff7 | Juan Quintela | static const VMStateDescription vmstate_cpu_common = { |
588 | e7f4eff7 | Juan Quintela | .name = "cpu_common",
|
589 | e7f4eff7 | Juan Quintela | .version_id = 1,
|
590 | e7f4eff7 | Juan Quintela | .minimum_version_id = 1,
|
591 | e7f4eff7 | Juan Quintela | .minimum_version_id_old = 1,
|
592 | e7f4eff7 | Juan Quintela | .post_load = cpu_common_post_load, |
593 | e7f4eff7 | Juan Quintela | .fields = (VMStateField []) { |
594 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(halted, CPUState), |
595 | e7f4eff7 | Juan Quintela | VMSTATE_UINT32(interrupt_request, CPUState), |
596 | e7f4eff7 | Juan Quintela | VMSTATE_END_OF_LIST() |
597 | e7f4eff7 | Juan Quintela | } |
598 | e7f4eff7 | Juan Quintela | }; |
599 | 9656f324 | pbrook | #endif
|
600 | 9656f324 | pbrook | |
601 | 950f1472 | Glauber Costa | CPUState *qemu_get_cpu(int cpu)
|
602 | 950f1472 | Glauber Costa | { |
603 | 950f1472 | Glauber Costa | CPUState *env = first_cpu; |
604 | 950f1472 | Glauber Costa | |
605 | 950f1472 | Glauber Costa | while (env) {
|
606 | 950f1472 | Glauber Costa | if (env->cpu_index == cpu)
|
607 | 950f1472 | Glauber Costa | break;
|
608 | 950f1472 | Glauber Costa | env = env->next_cpu; |
609 | 950f1472 | Glauber Costa | } |
610 | 950f1472 | Glauber Costa | |
611 | 950f1472 | Glauber Costa | return env;
|
612 | 950f1472 | Glauber Costa | } |
613 | 950f1472 | Glauber Costa | |
614 | 6a00d601 | bellard | void cpu_exec_init(CPUState *env)
|
615 | fd6ce8f6 | bellard | { |
616 | 6a00d601 | bellard | CPUState **penv; |
617 | 6a00d601 | bellard | int cpu_index;
|
618 | 6a00d601 | bellard | |
619 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
620 | c2764719 | pbrook | cpu_list_lock(); |
621 | c2764719 | pbrook | #endif
|
622 | 6a00d601 | bellard | env->next_cpu = NULL;
|
623 | 6a00d601 | bellard | penv = &first_cpu; |
624 | 6a00d601 | bellard | cpu_index = 0;
|
625 | 6a00d601 | bellard | while (*penv != NULL) { |
626 | 1e9fa730 | Nathan Froyd | penv = &(*penv)->next_cpu; |
627 | 6a00d601 | bellard | cpu_index++; |
628 | 6a00d601 | bellard | } |
629 | 6a00d601 | bellard | env->cpu_index = cpu_index; |
630 | 268a362c | aliguori | env->numa_node = 0;
|
631 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
632 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
633 | 6a00d601 | bellard | *penv = env; |
634 | c2764719 | pbrook | #if defined(CONFIG_USER_ONLY)
|
635 | c2764719 | pbrook | cpu_list_unlock(); |
636 | c2764719 | pbrook | #endif
|
637 | b3c7724c | pbrook | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
|
638 | 0be71e32 | Alex Williamson | vmstate_register(NULL, cpu_index, &vmstate_cpu_common, env);
|
639 | 0be71e32 | Alex Williamson | register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION, |
640 | b3c7724c | pbrook | cpu_save, cpu_load, env); |
641 | b3c7724c | pbrook | #endif
|
642 | fd6ce8f6 | bellard | } |
643 | fd6ce8f6 | bellard | |
644 | 9fa3e853 | bellard | static inline void invalidate_page_bitmap(PageDesc *p) |
645 | 9fa3e853 | bellard | { |
646 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
647 | 59817ccb | bellard | qemu_free(p->code_bitmap); |
648 | 9fa3e853 | bellard | p->code_bitmap = NULL;
|
649 | 9fa3e853 | bellard | } |
650 | 9fa3e853 | bellard | p->code_write_count = 0;
|
651 | 9fa3e853 | bellard | } |
652 | 9fa3e853 | bellard | |
653 | 5cd2c5b6 | Richard Henderson | /* Set to NULL all the 'first_tb' fields in all PageDescs. */
|
654 | 5cd2c5b6 | Richard Henderson | |
655 | 5cd2c5b6 | Richard Henderson | static void page_flush_tb_1 (int level, void **lp) |
656 | fd6ce8f6 | bellard | { |
657 | 5cd2c5b6 | Richard Henderson | int i;
|
658 | fd6ce8f6 | bellard | |
659 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
660 | 5cd2c5b6 | Richard Henderson | return;
|
661 | 5cd2c5b6 | Richard Henderson | } |
662 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
663 | 5cd2c5b6 | Richard Henderson | PageDesc *pd = *lp; |
664 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
665 | 5cd2c5b6 | Richard Henderson | pd[i].first_tb = NULL;
|
666 | 5cd2c5b6 | Richard Henderson | invalidate_page_bitmap(pd + i); |
667 | fd6ce8f6 | bellard | } |
668 | 5cd2c5b6 | Richard Henderson | } else {
|
669 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
670 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
671 | 5cd2c5b6 | Richard Henderson | page_flush_tb_1 (level - 1, pp + i);
|
672 | 5cd2c5b6 | Richard Henderson | } |
673 | 5cd2c5b6 | Richard Henderson | } |
674 | 5cd2c5b6 | Richard Henderson | } |
675 | 5cd2c5b6 | Richard Henderson | |
676 | 5cd2c5b6 | Richard Henderson | static void page_flush_tb(void) |
677 | 5cd2c5b6 | Richard Henderson | { |
678 | 5cd2c5b6 | Richard Henderson | int i;
|
679 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < V_L1_SIZE; i++) { |
680 | 5cd2c5b6 | Richard Henderson | page_flush_tb_1(V_L1_SHIFT / L2_BITS - 1, l1_map + i);
|
681 | fd6ce8f6 | bellard | } |
682 | fd6ce8f6 | bellard | } |
683 | fd6ce8f6 | bellard | |
684 | fd6ce8f6 | bellard | /* flush all the translation blocks */
|
685 | d4e8164f | bellard | /* XXX: tb_flush is currently not thread safe */
|
686 | 6a00d601 | bellard | void tb_flush(CPUState *env1)
|
687 | fd6ce8f6 | bellard | { |
688 | 6a00d601 | bellard | CPUState *env; |
689 | 0124311e | bellard | #if defined(DEBUG_FLUSH)
|
690 | ab3d1727 | blueswir1 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n",
|
691 | ab3d1727 | blueswir1 | (unsigned long)(code_gen_ptr - code_gen_buffer), |
692 | ab3d1727 | blueswir1 | nb_tbs, nb_tbs > 0 ?
|
693 | ab3d1727 | blueswir1 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); |
694 | fd6ce8f6 | bellard | #endif
|
695 | 26a5f13b | bellard | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
696 | a208e54a | pbrook | cpu_abort(env1, "Internal error: code buffer overflow\n");
|
697 | a208e54a | pbrook | |
698 | fd6ce8f6 | bellard | nb_tbs = 0;
|
699 | 3b46e624 | ths | |
700 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
701 | 6a00d601 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
702 | 6a00d601 | bellard | } |
703 | 9fa3e853 | bellard | |
704 | 8a8a608f | bellard | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
705 | fd6ce8f6 | bellard | page_flush_tb(); |
706 | 9fa3e853 | bellard | |
707 | fd6ce8f6 | bellard | code_gen_ptr = code_gen_buffer; |
708 | d4e8164f | bellard | /* XXX: flush processor icache at this point if cache flush is
|
709 | d4e8164f | bellard | expensive */
|
710 | e3db7226 | bellard | tb_flush_count++; |
711 | fd6ce8f6 | bellard | } |
712 | fd6ce8f6 | bellard | |
713 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_CHECK
|
714 | fd6ce8f6 | bellard | |
715 | bc98a7ef | j_mayer | static void tb_invalidate_check(target_ulong address) |
716 | fd6ce8f6 | bellard | { |
717 | fd6ce8f6 | bellard | TranslationBlock *tb; |
718 | fd6ce8f6 | bellard | int i;
|
719 | fd6ce8f6 | bellard | address &= TARGET_PAGE_MASK; |
720 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
721 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
722 | fd6ce8f6 | bellard | if (!(address + TARGET_PAGE_SIZE <= tb->pc ||
|
723 | fd6ce8f6 | bellard | address >= tb->pc + tb->size)) { |
724 | 0bf9e31a | Blue Swirl | printf("ERROR invalidate: address=" TARGET_FMT_lx
|
725 | 0bf9e31a | Blue Swirl | " PC=%08lx size=%04x\n",
|
726 | 99773bd4 | pbrook | address, (long)tb->pc, tb->size);
|
727 | fd6ce8f6 | bellard | } |
728 | fd6ce8f6 | bellard | } |
729 | fd6ce8f6 | bellard | } |
730 | fd6ce8f6 | bellard | } |
731 | fd6ce8f6 | bellard | |
732 | fd6ce8f6 | bellard | /* verify that all the pages have correct rights for code */
|
733 | fd6ce8f6 | bellard | static void tb_page_check(void) |
734 | fd6ce8f6 | bellard | { |
735 | fd6ce8f6 | bellard | TranslationBlock *tb; |
736 | fd6ce8f6 | bellard | int i, flags1, flags2;
|
737 | 3b46e624 | ths | |
738 | 99773bd4 | pbrook | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
739 | 99773bd4 | pbrook | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
740 | fd6ce8f6 | bellard | flags1 = page_get_flags(tb->pc); |
741 | fd6ce8f6 | bellard | flags2 = page_get_flags(tb->pc + tb->size - 1);
|
742 | fd6ce8f6 | bellard | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) {
|
743 | fd6ce8f6 | bellard | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n",
|
744 | 99773bd4 | pbrook | (long)tb->pc, tb->size, flags1, flags2);
|
745 | fd6ce8f6 | bellard | } |
746 | fd6ce8f6 | bellard | } |
747 | fd6ce8f6 | bellard | } |
748 | fd6ce8f6 | bellard | } |
749 | fd6ce8f6 | bellard | |
750 | fd6ce8f6 | bellard | #endif
|
751 | fd6ce8f6 | bellard | |
752 | fd6ce8f6 | bellard | /* invalidate one TB */
|
753 | fd6ce8f6 | bellard | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, |
754 | fd6ce8f6 | bellard | int next_offset)
|
755 | fd6ce8f6 | bellard | { |
756 | fd6ce8f6 | bellard | TranslationBlock *tb1; |
757 | fd6ce8f6 | bellard | for(;;) {
|
758 | fd6ce8f6 | bellard | tb1 = *ptb; |
759 | fd6ce8f6 | bellard | if (tb1 == tb) {
|
760 | fd6ce8f6 | bellard | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset);
|
761 | fd6ce8f6 | bellard | break;
|
762 | fd6ce8f6 | bellard | } |
763 | fd6ce8f6 | bellard | ptb = (TranslationBlock **)((char *)tb1 + next_offset);
|
764 | fd6ce8f6 | bellard | } |
765 | fd6ce8f6 | bellard | } |
766 | fd6ce8f6 | bellard | |
767 | 9fa3e853 | bellard | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
768 | 9fa3e853 | bellard | { |
769 | 9fa3e853 | bellard | TranslationBlock *tb1; |
770 | 9fa3e853 | bellard | unsigned int n1; |
771 | 9fa3e853 | bellard | |
772 | 9fa3e853 | bellard | for(;;) {
|
773 | 9fa3e853 | bellard | tb1 = *ptb; |
774 | 9fa3e853 | bellard | n1 = (long)tb1 & 3; |
775 | 9fa3e853 | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
776 | 9fa3e853 | bellard | if (tb1 == tb) {
|
777 | 9fa3e853 | bellard | *ptb = tb1->page_next[n1]; |
778 | 9fa3e853 | bellard | break;
|
779 | 9fa3e853 | bellard | } |
780 | 9fa3e853 | bellard | ptb = &tb1->page_next[n1]; |
781 | 9fa3e853 | bellard | } |
782 | 9fa3e853 | bellard | } |
783 | 9fa3e853 | bellard | |
784 | d4e8164f | bellard | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
785 | d4e8164f | bellard | { |
786 | d4e8164f | bellard | TranslationBlock *tb1, **ptb; |
787 | d4e8164f | bellard | unsigned int n1; |
788 | d4e8164f | bellard | |
789 | d4e8164f | bellard | ptb = &tb->jmp_next[n]; |
790 | d4e8164f | bellard | tb1 = *ptb; |
791 | d4e8164f | bellard | if (tb1) {
|
792 | d4e8164f | bellard | /* find tb(n) in circular list */
|
793 | d4e8164f | bellard | for(;;) {
|
794 | d4e8164f | bellard | tb1 = *ptb; |
795 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
796 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
797 | d4e8164f | bellard | if (n1 == n && tb1 == tb)
|
798 | d4e8164f | bellard | break;
|
799 | d4e8164f | bellard | if (n1 == 2) { |
800 | d4e8164f | bellard | ptb = &tb1->jmp_first; |
801 | d4e8164f | bellard | } else {
|
802 | d4e8164f | bellard | ptb = &tb1->jmp_next[n1]; |
803 | d4e8164f | bellard | } |
804 | d4e8164f | bellard | } |
805 | d4e8164f | bellard | /* now we can suppress tb(n) from the list */
|
806 | d4e8164f | bellard | *ptb = tb->jmp_next[n]; |
807 | d4e8164f | bellard | |
808 | d4e8164f | bellard | tb->jmp_next[n] = NULL;
|
809 | d4e8164f | bellard | } |
810 | d4e8164f | bellard | } |
811 | d4e8164f | bellard | |
812 | d4e8164f | bellard | /* reset the jump entry 'n' of a TB so that it is not chained to
|
813 | d4e8164f | bellard | another TB */
|
814 | d4e8164f | bellard | static inline void tb_reset_jump(TranslationBlock *tb, int n) |
815 | d4e8164f | bellard | { |
816 | d4e8164f | bellard | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); |
817 | d4e8164f | bellard | } |
818 | d4e8164f | bellard | |
819 | 41c1b1c9 | Paul Brook | void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr)
|
820 | fd6ce8f6 | bellard | { |
821 | 6a00d601 | bellard | CPUState *env; |
822 | 8a40a180 | bellard | PageDesc *p; |
823 | d4e8164f | bellard | unsigned int h, n1; |
824 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc; |
825 | 8a40a180 | bellard | TranslationBlock *tb1, *tb2; |
826 | 3b46e624 | ths | |
827 | 8a40a180 | bellard | /* remove the TB from the hash list */
|
828 | 8a40a180 | bellard | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
829 | 8a40a180 | bellard | h = tb_phys_hash_func(phys_pc); |
830 | 5fafdf24 | ths | tb_remove(&tb_phys_hash[h], tb, |
831 | 8a40a180 | bellard | offsetof(TranslationBlock, phys_hash_next)); |
832 | 8a40a180 | bellard | |
833 | 8a40a180 | bellard | /* remove the TB from the page list */
|
834 | 8a40a180 | bellard | if (tb->page_addr[0] != page_addr) { |
835 | 8a40a180 | bellard | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS);
|
836 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
837 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
838 | 8a40a180 | bellard | } |
839 | 8a40a180 | bellard | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { |
840 | 8a40a180 | bellard | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS);
|
841 | 8a40a180 | bellard | tb_page_remove(&p->first_tb, tb); |
842 | 8a40a180 | bellard | invalidate_page_bitmap(p); |
843 | 8a40a180 | bellard | } |
844 | 8a40a180 | bellard | |
845 | 36bdbe54 | bellard | tb_invalidated_flag = 1;
|
846 | 59817ccb | bellard | |
847 | fd6ce8f6 | bellard | /* remove the TB from the hash list */
|
848 | 8a40a180 | bellard | h = tb_jmp_cache_hash_func(tb->pc); |
849 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
850 | 6a00d601 | bellard | if (env->tb_jmp_cache[h] == tb)
|
851 | 6a00d601 | bellard | env->tb_jmp_cache[h] = NULL;
|
852 | 6a00d601 | bellard | } |
853 | d4e8164f | bellard | |
854 | d4e8164f | bellard | /* suppress this TB from the two jump lists */
|
855 | d4e8164f | bellard | tb_jmp_remove(tb, 0);
|
856 | d4e8164f | bellard | tb_jmp_remove(tb, 1);
|
857 | d4e8164f | bellard | |
858 | d4e8164f | bellard | /* suppress any remaining jumps to this TB */
|
859 | d4e8164f | bellard | tb1 = tb->jmp_first; |
860 | d4e8164f | bellard | for(;;) {
|
861 | d4e8164f | bellard | n1 = (long)tb1 & 3; |
862 | d4e8164f | bellard | if (n1 == 2) |
863 | d4e8164f | bellard | break;
|
864 | d4e8164f | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
865 | d4e8164f | bellard | tb2 = tb1->jmp_next[n1]; |
866 | d4e8164f | bellard | tb_reset_jump(tb1, n1); |
867 | d4e8164f | bellard | tb1->jmp_next[n1] = NULL;
|
868 | d4e8164f | bellard | tb1 = tb2; |
869 | d4e8164f | bellard | } |
870 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ |
871 | 9fa3e853 | bellard | |
872 | e3db7226 | bellard | tb_phys_invalidate_count++; |
873 | 9fa3e853 | bellard | } |
874 | 9fa3e853 | bellard | |
875 | 9fa3e853 | bellard | static inline void set_bits(uint8_t *tab, int start, int len) |
876 | 9fa3e853 | bellard | { |
877 | 9fa3e853 | bellard | int end, mask, end1;
|
878 | 9fa3e853 | bellard | |
879 | 9fa3e853 | bellard | end = start + len; |
880 | 9fa3e853 | bellard | tab += start >> 3;
|
881 | 9fa3e853 | bellard | mask = 0xff << (start & 7); |
882 | 9fa3e853 | bellard | if ((start & ~7) == (end & ~7)) { |
883 | 9fa3e853 | bellard | if (start < end) {
|
884 | 9fa3e853 | bellard | mask &= ~(0xff << (end & 7)); |
885 | 9fa3e853 | bellard | *tab |= mask; |
886 | 9fa3e853 | bellard | } |
887 | 9fa3e853 | bellard | } else {
|
888 | 9fa3e853 | bellard | *tab++ |= mask; |
889 | 9fa3e853 | bellard | start = (start + 8) & ~7; |
890 | 9fa3e853 | bellard | end1 = end & ~7;
|
891 | 9fa3e853 | bellard | while (start < end1) {
|
892 | 9fa3e853 | bellard | *tab++ = 0xff;
|
893 | 9fa3e853 | bellard | start += 8;
|
894 | 9fa3e853 | bellard | } |
895 | 9fa3e853 | bellard | if (start < end) {
|
896 | 9fa3e853 | bellard | mask = ~(0xff << (end & 7)); |
897 | 9fa3e853 | bellard | *tab |= mask; |
898 | 9fa3e853 | bellard | } |
899 | 9fa3e853 | bellard | } |
900 | 9fa3e853 | bellard | } |
901 | 9fa3e853 | bellard | |
902 | 9fa3e853 | bellard | static void build_page_bitmap(PageDesc *p) |
903 | 9fa3e853 | bellard | { |
904 | 9fa3e853 | bellard | int n, tb_start, tb_end;
|
905 | 9fa3e853 | bellard | TranslationBlock *tb; |
906 | 3b46e624 | ths | |
907 | b2a7081a | pbrook | p->code_bitmap = qemu_mallocz(TARGET_PAGE_SIZE / 8);
|
908 | 9fa3e853 | bellard | |
909 | 9fa3e853 | bellard | tb = p->first_tb; |
910 | 9fa3e853 | bellard | while (tb != NULL) { |
911 | 9fa3e853 | bellard | n = (long)tb & 3; |
912 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
913 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
914 | 9fa3e853 | bellard | if (n == 0) { |
915 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
916 | 9fa3e853 | bellard | it is not a problem */
|
917 | 9fa3e853 | bellard | tb_start = tb->pc & ~TARGET_PAGE_MASK; |
918 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
919 | 9fa3e853 | bellard | if (tb_end > TARGET_PAGE_SIZE)
|
920 | 9fa3e853 | bellard | tb_end = TARGET_PAGE_SIZE; |
921 | 9fa3e853 | bellard | } else {
|
922 | 9fa3e853 | bellard | tb_start = 0;
|
923 | 9fa3e853 | bellard | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
924 | 9fa3e853 | bellard | } |
925 | 9fa3e853 | bellard | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); |
926 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
927 | 9fa3e853 | bellard | } |
928 | 9fa3e853 | bellard | } |
929 | 9fa3e853 | bellard | |
930 | 2e70f6ef | pbrook | TranslationBlock *tb_gen_code(CPUState *env, |
931 | 2e70f6ef | pbrook | target_ulong pc, target_ulong cs_base, |
932 | 2e70f6ef | pbrook | int flags, int cflags) |
933 | d720b93d | bellard | { |
934 | d720b93d | bellard | TranslationBlock *tb; |
935 | d720b93d | bellard | uint8_t *tc_ptr; |
936 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc, phys_page2; |
937 | 41c1b1c9 | Paul Brook | target_ulong virt_page2; |
938 | d720b93d | bellard | int code_gen_size;
|
939 | d720b93d | bellard | |
940 | 41c1b1c9 | Paul Brook | phys_pc = get_page_addr_code(env, pc); |
941 | c27004ec | bellard | tb = tb_alloc(pc); |
942 | d720b93d | bellard | if (!tb) {
|
943 | d720b93d | bellard | /* flush must be done */
|
944 | d720b93d | bellard | tb_flush(env); |
945 | d720b93d | bellard | /* cannot fail at this point */
|
946 | c27004ec | bellard | tb = tb_alloc(pc); |
947 | 2e70f6ef | pbrook | /* Don't forget to invalidate previous TB info. */
|
948 | 2e70f6ef | pbrook | tb_invalidated_flag = 1;
|
949 | d720b93d | bellard | } |
950 | d720b93d | bellard | tc_ptr = code_gen_ptr; |
951 | d720b93d | bellard | tb->tc_ptr = tc_ptr; |
952 | d720b93d | bellard | tb->cs_base = cs_base; |
953 | d720b93d | bellard | tb->flags = flags; |
954 | d720b93d | bellard | tb->cflags = cflags; |
955 | d07bde88 | blueswir1 | cpu_gen_code(env, tb, &code_gen_size); |
956 | d720b93d | bellard | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
957 | 3b46e624 | ths | |
958 | d720b93d | bellard | /* check next page if needed */
|
959 | c27004ec | bellard | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK;
|
960 | d720b93d | bellard | phys_page2 = -1;
|
961 | c27004ec | bellard | if ((pc & TARGET_PAGE_MASK) != virt_page2) {
|
962 | 41c1b1c9 | Paul Brook | phys_page2 = get_page_addr_code(env, virt_page2); |
963 | d720b93d | bellard | } |
964 | 41c1b1c9 | Paul Brook | tb_link_page(tb, phys_pc, phys_page2); |
965 | 2e70f6ef | pbrook | return tb;
|
966 | d720b93d | bellard | } |
967 | 3b46e624 | ths | |
968 | 9fa3e853 | bellard | /* invalidate all TBs which intersect with the target physical page
|
969 | 9fa3e853 | bellard | starting in range [start;end[. NOTE: start and end must refer to
|
970 | d720b93d | bellard | the same physical page. 'is_cpu_write_access' should be true if called
|
971 | d720b93d | bellard | from a real cpu write access: the virtual CPU will exit the current
|
972 | d720b93d | bellard | TB if code is modified inside this TB. */
|
973 | 41c1b1c9 | Paul Brook | void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
|
974 | d720b93d | bellard | int is_cpu_write_access)
|
975 | d720b93d | bellard | { |
976 | 6b917547 | aliguori | TranslationBlock *tb, *tb_next, *saved_tb; |
977 | d720b93d | bellard | CPUState *env = cpu_single_env; |
978 | 41c1b1c9 | Paul Brook | tb_page_addr_t tb_start, tb_end; |
979 | 6b917547 | aliguori | PageDesc *p; |
980 | 6b917547 | aliguori | int n;
|
981 | 6b917547 | aliguori | #ifdef TARGET_HAS_PRECISE_SMC
|
982 | 6b917547 | aliguori | int current_tb_not_found = is_cpu_write_access;
|
983 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
984 | 6b917547 | aliguori | int current_tb_modified = 0; |
985 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
986 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
987 | 6b917547 | aliguori | int current_flags = 0; |
988 | 6b917547 | aliguori | #endif /* TARGET_HAS_PRECISE_SMC */ |
989 | 9fa3e853 | bellard | |
990 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
991 | 5fafdf24 | ths | if (!p)
|
992 | 9fa3e853 | bellard | return;
|
993 | 5fafdf24 | ths | if (!p->code_bitmap &&
|
994 | d720b93d | bellard | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
995 | d720b93d | bellard | is_cpu_write_access) { |
996 | 9fa3e853 | bellard | /* build code bitmap */
|
997 | 9fa3e853 | bellard | build_page_bitmap(p); |
998 | 9fa3e853 | bellard | } |
999 | 9fa3e853 | bellard | |
1000 | 9fa3e853 | bellard | /* we remove all the TBs in the range [start, end[ */
|
1001 | 9fa3e853 | bellard | /* XXX: see if in some cases it could be faster to invalidate all the code */
|
1002 | 9fa3e853 | bellard | tb = p->first_tb; |
1003 | 9fa3e853 | bellard | while (tb != NULL) { |
1004 | 9fa3e853 | bellard | n = (long)tb & 3; |
1005 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
1006 | 9fa3e853 | bellard | tb_next = tb->page_next[n]; |
1007 | 9fa3e853 | bellard | /* NOTE: this is subtle as a TB may span two physical pages */
|
1008 | 9fa3e853 | bellard | if (n == 0) { |
1009 | 9fa3e853 | bellard | /* NOTE: tb_end may be after the end of the page, but
|
1010 | 9fa3e853 | bellard | it is not a problem */
|
1011 | 9fa3e853 | bellard | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK);
|
1012 | 9fa3e853 | bellard | tb_end = tb_start + tb->size; |
1013 | 9fa3e853 | bellard | } else {
|
1014 | 9fa3e853 | bellard | tb_start = tb->page_addr[1];
|
1015 | 9fa3e853 | bellard | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
1016 | 9fa3e853 | bellard | } |
1017 | 9fa3e853 | bellard | if (!(tb_end <= start || tb_start >= end)) {
|
1018 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1019 | d720b93d | bellard | if (current_tb_not_found) {
|
1020 | d720b93d | bellard | current_tb_not_found = 0;
|
1021 | d720b93d | bellard | current_tb = NULL;
|
1022 | 2e70f6ef | pbrook | if (env->mem_io_pc) {
|
1023 | d720b93d | bellard | /* now we have a real cpu fault */
|
1024 | 2e70f6ef | pbrook | current_tb = tb_find_pc(env->mem_io_pc); |
1025 | d720b93d | bellard | } |
1026 | d720b93d | bellard | } |
1027 | d720b93d | bellard | if (current_tb == tb &&
|
1028 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
1029 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
1030 | d720b93d | bellard | its execution. We could be more precise by checking
|
1031 | d720b93d | bellard | that the modification is after the current PC, but it
|
1032 | d720b93d | bellard | would require a specialized function to partially
|
1033 | d720b93d | bellard | restore the CPU state */
|
1034 | 3b46e624 | ths | |
1035 | d720b93d | bellard | current_tb_modified = 1;
|
1036 | 5fafdf24 | ths | cpu_restore_state(current_tb, env, |
1037 | 2e70f6ef | pbrook | env->mem_io_pc, NULL);
|
1038 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1039 | 6b917547 | aliguori | ¤t_flags); |
1040 | d720b93d | bellard | } |
1041 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
1042 | 6f5a9f7e | bellard | /* we need to do that to handle the case where a signal
|
1043 | 6f5a9f7e | bellard | occurs while doing tb_phys_invalidate() */
|
1044 | 6f5a9f7e | bellard | saved_tb = NULL;
|
1045 | 6f5a9f7e | bellard | if (env) {
|
1046 | 6f5a9f7e | bellard | saved_tb = env->current_tb; |
1047 | 6f5a9f7e | bellard | env->current_tb = NULL;
|
1048 | 6f5a9f7e | bellard | } |
1049 | 9fa3e853 | bellard | tb_phys_invalidate(tb, -1);
|
1050 | 6f5a9f7e | bellard | if (env) {
|
1051 | 6f5a9f7e | bellard | env->current_tb = saved_tb; |
1052 | 6f5a9f7e | bellard | if (env->interrupt_request && env->current_tb)
|
1053 | 6f5a9f7e | bellard | cpu_interrupt(env, env->interrupt_request); |
1054 | 6f5a9f7e | bellard | } |
1055 | 9fa3e853 | bellard | } |
1056 | 9fa3e853 | bellard | tb = tb_next; |
1057 | 9fa3e853 | bellard | } |
1058 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
1059 | 9fa3e853 | bellard | /* if no code remaining, no need to continue to use slow writes */
|
1060 | 9fa3e853 | bellard | if (!p->first_tb) {
|
1061 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1062 | d720b93d | bellard | if (is_cpu_write_access) {
|
1063 | 2e70f6ef | pbrook | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
1064 | d720b93d | bellard | } |
1065 | d720b93d | bellard | } |
1066 | d720b93d | bellard | #endif
|
1067 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1068 | d720b93d | bellard | if (current_tb_modified) {
|
1069 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1070 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1071 | d720b93d | bellard | itself */
|
1072 | ea1c1802 | bellard | env->current_tb = NULL;
|
1073 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1074 | d720b93d | bellard | cpu_resume_from_signal(env, NULL);
|
1075 | 9fa3e853 | bellard | } |
1076 | fd6ce8f6 | bellard | #endif
|
1077 | 9fa3e853 | bellard | } |
1078 | fd6ce8f6 | bellard | |
1079 | 9fa3e853 | bellard | /* len must be <= 8 and start must be a multiple of len */
|
1080 | 41c1b1c9 | Paul Brook | static inline void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len) |
1081 | 9fa3e853 | bellard | { |
1082 | 9fa3e853 | bellard | PageDesc *p; |
1083 | 9fa3e853 | bellard | int offset, b;
|
1084 | 59817ccb | bellard | #if 0
|
1085 | a4193c8a | bellard | if (1) {
|
1086 | 93fcfe39 | aliguori | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n",
|
1087 | 93fcfe39 | aliguori | cpu_single_env->mem_io_vaddr, len,
|
1088 | 93fcfe39 | aliguori | cpu_single_env->eip,
|
1089 | 93fcfe39 | aliguori | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base);
|
1090 | 59817ccb | bellard | }
|
1091 | 59817ccb | bellard | #endif
|
1092 | 9fa3e853 | bellard | p = page_find(start >> TARGET_PAGE_BITS); |
1093 | 5fafdf24 | ths | if (!p)
|
1094 | 9fa3e853 | bellard | return;
|
1095 | 9fa3e853 | bellard | if (p->code_bitmap) {
|
1096 | 9fa3e853 | bellard | offset = start & ~TARGET_PAGE_MASK; |
1097 | 9fa3e853 | bellard | b = p->code_bitmap[offset >> 3] >> (offset & 7); |
1098 | 9fa3e853 | bellard | if (b & ((1 << len) - 1)) |
1099 | 9fa3e853 | bellard | goto do_invalidate;
|
1100 | 9fa3e853 | bellard | } else {
|
1101 | 9fa3e853 | bellard | do_invalidate:
|
1102 | d720b93d | bellard | tb_invalidate_phys_page_range(start, start + len, 1);
|
1103 | 9fa3e853 | bellard | } |
1104 | 9fa3e853 | bellard | } |
1105 | 9fa3e853 | bellard | |
1106 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1107 | 41c1b1c9 | Paul Brook | static void tb_invalidate_phys_page(tb_page_addr_t addr, |
1108 | d720b93d | bellard | unsigned long pc, void *puc) |
1109 | 9fa3e853 | bellard | { |
1110 | 6b917547 | aliguori | TranslationBlock *tb; |
1111 | 9fa3e853 | bellard | PageDesc *p; |
1112 | 6b917547 | aliguori | int n;
|
1113 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1114 | 6b917547 | aliguori | TranslationBlock *current_tb = NULL;
|
1115 | d720b93d | bellard | CPUState *env = cpu_single_env; |
1116 | 6b917547 | aliguori | int current_tb_modified = 0; |
1117 | 6b917547 | aliguori | target_ulong current_pc = 0;
|
1118 | 6b917547 | aliguori | target_ulong current_cs_base = 0;
|
1119 | 6b917547 | aliguori | int current_flags = 0; |
1120 | d720b93d | bellard | #endif
|
1121 | 9fa3e853 | bellard | |
1122 | 9fa3e853 | bellard | addr &= TARGET_PAGE_MASK; |
1123 | 9fa3e853 | bellard | p = page_find(addr >> TARGET_PAGE_BITS); |
1124 | 5fafdf24 | ths | if (!p)
|
1125 | 9fa3e853 | bellard | return;
|
1126 | 9fa3e853 | bellard | tb = p->first_tb; |
1127 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1128 | d720b93d | bellard | if (tb && pc != 0) { |
1129 | d720b93d | bellard | current_tb = tb_find_pc(pc); |
1130 | d720b93d | bellard | } |
1131 | d720b93d | bellard | #endif
|
1132 | 9fa3e853 | bellard | while (tb != NULL) { |
1133 | 9fa3e853 | bellard | n = (long)tb & 3; |
1134 | 9fa3e853 | bellard | tb = (TranslationBlock *)((long)tb & ~3); |
1135 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1136 | d720b93d | bellard | if (current_tb == tb &&
|
1137 | 2e70f6ef | pbrook | (current_tb->cflags & CF_COUNT_MASK) != 1) {
|
1138 | d720b93d | bellard | /* If we are modifying the current TB, we must stop
|
1139 | d720b93d | bellard | its execution. We could be more precise by checking
|
1140 | d720b93d | bellard | that the modification is after the current PC, but it
|
1141 | d720b93d | bellard | would require a specialized function to partially
|
1142 | d720b93d | bellard | restore the CPU state */
|
1143 | 3b46e624 | ths | |
1144 | d720b93d | bellard | current_tb_modified = 1;
|
1145 | d720b93d | bellard | cpu_restore_state(current_tb, env, pc, puc); |
1146 | 6b917547 | aliguori | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
1147 | 6b917547 | aliguori | ¤t_flags); |
1148 | d720b93d | bellard | } |
1149 | d720b93d | bellard | #endif /* TARGET_HAS_PRECISE_SMC */ |
1150 | 9fa3e853 | bellard | tb_phys_invalidate(tb, addr); |
1151 | 9fa3e853 | bellard | tb = tb->page_next[n]; |
1152 | 9fa3e853 | bellard | } |
1153 | fd6ce8f6 | bellard | p->first_tb = NULL;
|
1154 | d720b93d | bellard | #ifdef TARGET_HAS_PRECISE_SMC
|
1155 | d720b93d | bellard | if (current_tb_modified) {
|
1156 | d720b93d | bellard | /* we generate a block containing just the instruction
|
1157 | d720b93d | bellard | modifying the memory. It will ensure that it cannot modify
|
1158 | d720b93d | bellard | itself */
|
1159 | ea1c1802 | bellard | env->current_tb = NULL;
|
1160 | 2e70f6ef | pbrook | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
|
1161 | d720b93d | bellard | cpu_resume_from_signal(env, puc); |
1162 | d720b93d | bellard | } |
1163 | d720b93d | bellard | #endif
|
1164 | fd6ce8f6 | bellard | } |
1165 | 9fa3e853 | bellard | #endif
|
1166 | fd6ce8f6 | bellard | |
1167 | fd6ce8f6 | bellard | /* add the tb in the target page and protect it if necessary */
|
1168 | 5fafdf24 | ths | static inline void tb_alloc_page(TranslationBlock *tb, |
1169 | 41c1b1c9 | Paul Brook | unsigned int n, tb_page_addr_t page_addr) |
1170 | fd6ce8f6 | bellard | { |
1171 | fd6ce8f6 | bellard | PageDesc *p; |
1172 | 9fa3e853 | bellard | TranslationBlock *last_first_tb; |
1173 | 9fa3e853 | bellard | |
1174 | 9fa3e853 | bellard | tb->page_addr[n] = page_addr; |
1175 | 5cd2c5b6 | Richard Henderson | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS, 1);
|
1176 | 9fa3e853 | bellard | tb->page_next[n] = p->first_tb; |
1177 | 9fa3e853 | bellard | last_first_tb = p->first_tb; |
1178 | 9fa3e853 | bellard | p->first_tb = (TranslationBlock *)((long)tb | n);
|
1179 | 9fa3e853 | bellard | invalidate_page_bitmap(p); |
1180 | fd6ce8f6 | bellard | |
1181 | 107db443 | bellard | #if defined(TARGET_HAS_SMC) || 1 |
1182 | d720b93d | bellard | |
1183 | 9fa3e853 | bellard | #if defined(CONFIG_USER_ONLY)
|
1184 | fd6ce8f6 | bellard | if (p->flags & PAGE_WRITE) {
|
1185 | 53a5960a | pbrook | target_ulong addr; |
1186 | 53a5960a | pbrook | PageDesc *p2; |
1187 | 9fa3e853 | bellard | int prot;
|
1188 | 9fa3e853 | bellard | |
1189 | fd6ce8f6 | bellard | /* force the host page as non writable (writes will have a
|
1190 | fd6ce8f6 | bellard | page fault + mprotect overhead) */
|
1191 | 53a5960a | pbrook | page_addr &= qemu_host_page_mask; |
1192 | fd6ce8f6 | bellard | prot = 0;
|
1193 | 53a5960a | pbrook | for(addr = page_addr; addr < page_addr + qemu_host_page_size;
|
1194 | 53a5960a | pbrook | addr += TARGET_PAGE_SIZE) { |
1195 | 53a5960a | pbrook | |
1196 | 53a5960a | pbrook | p2 = page_find (addr >> TARGET_PAGE_BITS); |
1197 | 53a5960a | pbrook | if (!p2)
|
1198 | 53a5960a | pbrook | continue;
|
1199 | 53a5960a | pbrook | prot |= p2->flags; |
1200 | 53a5960a | pbrook | p2->flags &= ~PAGE_WRITE; |
1201 | 53a5960a | pbrook | } |
1202 | 5fafdf24 | ths | mprotect(g2h(page_addr), qemu_host_page_size, |
1203 | fd6ce8f6 | bellard | (prot & PAGE_BITS) & ~PAGE_WRITE); |
1204 | fd6ce8f6 | bellard | #ifdef DEBUG_TB_INVALIDATE
|
1205 | ab3d1727 | blueswir1 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
1206 | 53a5960a | pbrook | page_addr); |
1207 | fd6ce8f6 | bellard | #endif
|
1208 | fd6ce8f6 | bellard | } |
1209 | 9fa3e853 | bellard | #else
|
1210 | 9fa3e853 | bellard | /* if some code is already present, then the pages are already
|
1211 | 9fa3e853 | bellard | protected. So we handle the case where only the first TB is
|
1212 | 9fa3e853 | bellard | allocated in a physical page */
|
1213 | 9fa3e853 | bellard | if (!last_first_tb) {
|
1214 | 6a00d601 | bellard | tlb_protect_code(page_addr); |
1215 | 9fa3e853 | bellard | } |
1216 | 9fa3e853 | bellard | #endif
|
1217 | d720b93d | bellard | |
1218 | d720b93d | bellard | #endif /* TARGET_HAS_SMC */ |
1219 | fd6ce8f6 | bellard | } |
1220 | fd6ce8f6 | bellard | |
1221 | fd6ce8f6 | bellard | /* Allocate a new translation block. Flush the translation buffer if
|
1222 | fd6ce8f6 | bellard | too many translation blocks or too much generated code. */
|
1223 | c27004ec | bellard | TranslationBlock *tb_alloc(target_ulong pc) |
1224 | fd6ce8f6 | bellard | { |
1225 | fd6ce8f6 | bellard | TranslationBlock *tb; |
1226 | fd6ce8f6 | bellard | |
1227 | 26a5f13b | bellard | if (nb_tbs >= code_gen_max_blocks ||
|
1228 | 26a5f13b | bellard | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) |
1229 | d4e8164f | bellard | return NULL; |
1230 | fd6ce8f6 | bellard | tb = &tbs[nb_tbs++]; |
1231 | fd6ce8f6 | bellard | tb->pc = pc; |
1232 | b448f2f3 | bellard | tb->cflags = 0;
|
1233 | d4e8164f | bellard | return tb;
|
1234 | d4e8164f | bellard | } |
1235 | d4e8164f | bellard | |
1236 | 2e70f6ef | pbrook | void tb_free(TranslationBlock *tb)
|
1237 | 2e70f6ef | pbrook | { |
1238 | bf20dc07 | ths | /* In practice this is mostly used for single use temporary TB
|
1239 | 2e70f6ef | pbrook | Ignore the hard cases and just back up if this TB happens to
|
1240 | 2e70f6ef | pbrook | be the last one generated. */
|
1241 | 2e70f6ef | pbrook | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { |
1242 | 2e70f6ef | pbrook | code_gen_ptr = tb->tc_ptr; |
1243 | 2e70f6ef | pbrook | nb_tbs--; |
1244 | 2e70f6ef | pbrook | } |
1245 | 2e70f6ef | pbrook | } |
1246 | 2e70f6ef | pbrook | |
1247 | 9fa3e853 | bellard | /* add a new TB and link it to the physical page tables. phys_page2 is
|
1248 | 9fa3e853 | bellard | (-1) to indicate that only one page contains the TB. */
|
1249 | 41c1b1c9 | Paul Brook | void tb_link_page(TranslationBlock *tb,
|
1250 | 41c1b1c9 | Paul Brook | tb_page_addr_t phys_pc, tb_page_addr_t phys_page2) |
1251 | d4e8164f | bellard | { |
1252 | 9fa3e853 | bellard | unsigned int h; |
1253 | 9fa3e853 | bellard | TranslationBlock **ptb; |
1254 | 9fa3e853 | bellard | |
1255 | c8a706fe | pbrook | /* Grab the mmap lock to stop another thread invalidating this TB
|
1256 | c8a706fe | pbrook | before we are done. */
|
1257 | c8a706fe | pbrook | mmap_lock(); |
1258 | 9fa3e853 | bellard | /* add in the physical hash table */
|
1259 | 9fa3e853 | bellard | h = tb_phys_hash_func(phys_pc); |
1260 | 9fa3e853 | bellard | ptb = &tb_phys_hash[h]; |
1261 | 9fa3e853 | bellard | tb->phys_hash_next = *ptb; |
1262 | 9fa3e853 | bellard | *ptb = tb; |
1263 | fd6ce8f6 | bellard | |
1264 | fd6ce8f6 | bellard | /* add in the page list */
|
1265 | 9fa3e853 | bellard | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK);
|
1266 | 9fa3e853 | bellard | if (phys_page2 != -1) |
1267 | 9fa3e853 | bellard | tb_alloc_page(tb, 1, phys_page2);
|
1268 | 9fa3e853 | bellard | else
|
1269 | 9fa3e853 | bellard | tb->page_addr[1] = -1; |
1270 | 9fa3e853 | bellard | |
1271 | d4e8164f | bellard | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
1272 | d4e8164f | bellard | tb->jmp_next[0] = NULL; |
1273 | d4e8164f | bellard | tb->jmp_next[1] = NULL; |
1274 | d4e8164f | bellard | |
1275 | d4e8164f | bellard | /* init original jump addresses */
|
1276 | d4e8164f | bellard | if (tb->tb_next_offset[0] != 0xffff) |
1277 | d4e8164f | bellard | tb_reset_jump(tb, 0);
|
1278 | d4e8164f | bellard | if (tb->tb_next_offset[1] != 0xffff) |
1279 | d4e8164f | bellard | tb_reset_jump(tb, 1);
|
1280 | 8a40a180 | bellard | |
1281 | 8a40a180 | bellard | #ifdef DEBUG_TB_CHECK
|
1282 | 8a40a180 | bellard | tb_page_check(); |
1283 | 8a40a180 | bellard | #endif
|
1284 | c8a706fe | pbrook | mmap_unlock(); |
1285 | fd6ce8f6 | bellard | } |
1286 | fd6ce8f6 | bellard | |
1287 | 9fa3e853 | bellard | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
|
1288 | 9fa3e853 | bellard | tb[1].tc_ptr. Return NULL if not found */
|
1289 | 9fa3e853 | bellard | TranslationBlock *tb_find_pc(unsigned long tc_ptr) |
1290 | fd6ce8f6 | bellard | { |
1291 | 9fa3e853 | bellard | int m_min, m_max, m;
|
1292 | 9fa3e853 | bellard | unsigned long v; |
1293 | 9fa3e853 | bellard | TranslationBlock *tb; |
1294 | a513fe19 | bellard | |
1295 | a513fe19 | bellard | if (nb_tbs <= 0) |
1296 | a513fe19 | bellard | return NULL; |
1297 | a513fe19 | bellard | if (tc_ptr < (unsigned long)code_gen_buffer || |
1298 | a513fe19 | bellard | tc_ptr >= (unsigned long)code_gen_ptr) |
1299 | a513fe19 | bellard | return NULL; |
1300 | a513fe19 | bellard | /* binary search (cf Knuth) */
|
1301 | a513fe19 | bellard | m_min = 0;
|
1302 | a513fe19 | bellard | m_max = nb_tbs - 1;
|
1303 | a513fe19 | bellard | while (m_min <= m_max) {
|
1304 | a513fe19 | bellard | m = (m_min + m_max) >> 1;
|
1305 | a513fe19 | bellard | tb = &tbs[m]; |
1306 | a513fe19 | bellard | v = (unsigned long)tb->tc_ptr; |
1307 | a513fe19 | bellard | if (v == tc_ptr)
|
1308 | a513fe19 | bellard | return tb;
|
1309 | a513fe19 | bellard | else if (tc_ptr < v) { |
1310 | a513fe19 | bellard | m_max = m - 1;
|
1311 | a513fe19 | bellard | } else {
|
1312 | a513fe19 | bellard | m_min = m + 1;
|
1313 | a513fe19 | bellard | } |
1314 | 5fafdf24 | ths | } |
1315 | a513fe19 | bellard | return &tbs[m_max];
|
1316 | a513fe19 | bellard | } |
1317 | 7501267e | bellard | |
1318 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb); |
1319 | ea041c0e | bellard | |
1320 | ea041c0e | bellard | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) |
1321 | ea041c0e | bellard | { |
1322 | ea041c0e | bellard | TranslationBlock *tb1, *tb_next, **ptb; |
1323 | ea041c0e | bellard | unsigned int n1; |
1324 | ea041c0e | bellard | |
1325 | ea041c0e | bellard | tb1 = tb->jmp_next[n]; |
1326 | ea041c0e | bellard | if (tb1 != NULL) { |
1327 | ea041c0e | bellard | /* find head of list */
|
1328 | ea041c0e | bellard | for(;;) {
|
1329 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1330 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1331 | ea041c0e | bellard | if (n1 == 2) |
1332 | ea041c0e | bellard | break;
|
1333 | ea041c0e | bellard | tb1 = tb1->jmp_next[n1]; |
1334 | ea041c0e | bellard | } |
1335 | ea041c0e | bellard | /* we are now sure now that tb jumps to tb1 */
|
1336 | ea041c0e | bellard | tb_next = tb1; |
1337 | ea041c0e | bellard | |
1338 | ea041c0e | bellard | /* remove tb from the jmp_first list */
|
1339 | ea041c0e | bellard | ptb = &tb_next->jmp_first; |
1340 | ea041c0e | bellard | for(;;) {
|
1341 | ea041c0e | bellard | tb1 = *ptb; |
1342 | ea041c0e | bellard | n1 = (long)tb1 & 3; |
1343 | ea041c0e | bellard | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
1344 | ea041c0e | bellard | if (n1 == n && tb1 == tb)
|
1345 | ea041c0e | bellard | break;
|
1346 | ea041c0e | bellard | ptb = &tb1->jmp_next[n1]; |
1347 | ea041c0e | bellard | } |
1348 | ea041c0e | bellard | *ptb = tb->jmp_next[n]; |
1349 | ea041c0e | bellard | tb->jmp_next[n] = NULL;
|
1350 | 3b46e624 | ths | |
1351 | ea041c0e | bellard | /* suppress the jump to next tb in generated code */
|
1352 | ea041c0e | bellard | tb_reset_jump(tb, n); |
1353 | ea041c0e | bellard | |
1354 | 0124311e | bellard | /* suppress jumps in the tb on which we could have jumped */
|
1355 | ea041c0e | bellard | tb_reset_jump_recursive(tb_next); |
1356 | ea041c0e | bellard | } |
1357 | ea041c0e | bellard | } |
1358 | ea041c0e | bellard | |
1359 | ea041c0e | bellard | static void tb_reset_jump_recursive(TranslationBlock *tb) |
1360 | ea041c0e | bellard | { |
1361 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 0);
|
1362 | ea041c0e | bellard | tb_reset_jump_recursive2(tb, 1);
|
1363 | ea041c0e | bellard | } |
1364 | ea041c0e | bellard | |
1365 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1366 | 94df27fd | Paul Brook | #if defined(CONFIG_USER_ONLY)
|
1367 | 94df27fd | Paul Brook | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1368 | 94df27fd | Paul Brook | { |
1369 | 94df27fd | Paul Brook | tb_invalidate_phys_page_range(pc, pc + 1, 0); |
1370 | 94df27fd | Paul Brook | } |
1371 | 94df27fd | Paul Brook | #else
|
1372 | d720b93d | bellard | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
1373 | d720b93d | bellard | { |
1374 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
1375 | 9b3c35e0 | j_mayer | target_ulong pd; |
1376 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
1377 | c2f07f81 | pbrook | PhysPageDesc *p; |
1378 | d720b93d | bellard | |
1379 | c2f07f81 | pbrook | addr = cpu_get_phys_page_debug(env, pc); |
1380 | c2f07f81 | pbrook | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
1381 | c2f07f81 | pbrook | if (!p) {
|
1382 | c2f07f81 | pbrook | pd = IO_MEM_UNASSIGNED; |
1383 | c2f07f81 | pbrook | } else {
|
1384 | c2f07f81 | pbrook | pd = p->phys_offset; |
1385 | c2f07f81 | pbrook | } |
1386 | c2f07f81 | pbrook | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
1387 | 706cd4b5 | pbrook | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
1388 | d720b93d | bellard | } |
1389 | c27004ec | bellard | #endif
|
1390 | 94df27fd | Paul Brook | #endif /* TARGET_HAS_ICE */ |
1391 | d720b93d | bellard | |
1392 | c527ee8f | Paul Brook | #if defined(CONFIG_USER_ONLY)
|
1393 | c527ee8f | Paul Brook | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
1394 | c527ee8f | Paul Brook | |
1395 | c527ee8f | Paul Brook | { |
1396 | c527ee8f | Paul Brook | } |
1397 | c527ee8f | Paul Brook | |
1398 | c527ee8f | Paul Brook | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
1399 | c527ee8f | Paul Brook | int flags, CPUWatchpoint **watchpoint)
|
1400 | c527ee8f | Paul Brook | { |
1401 | c527ee8f | Paul Brook | return -ENOSYS;
|
1402 | c527ee8f | Paul Brook | } |
1403 | c527ee8f | Paul Brook | #else
|
1404 | 6658ffb8 | pbrook | /* Add a watchpoint. */
|
1405 | a1d1bb31 | aliguori | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
1406 | a1d1bb31 | aliguori | int flags, CPUWatchpoint **watchpoint)
|
1407 | 6658ffb8 | pbrook | { |
1408 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1409 | c0ce998e | aliguori | CPUWatchpoint *wp; |
1410 | 6658ffb8 | pbrook | |
1411 | b4051334 | aliguori | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */
|
1412 | b4051334 | aliguori | if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) { |
1413 | b4051334 | aliguori | fprintf(stderr, "qemu: tried to set invalid watchpoint at "
|
1414 | b4051334 | aliguori | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
1415 | b4051334 | aliguori | return -EINVAL;
|
1416 | b4051334 | aliguori | } |
1417 | a1d1bb31 | aliguori | wp = qemu_malloc(sizeof(*wp));
|
1418 | a1d1bb31 | aliguori | |
1419 | a1d1bb31 | aliguori | wp->vaddr = addr; |
1420 | b4051334 | aliguori | wp->len_mask = len_mask; |
1421 | a1d1bb31 | aliguori | wp->flags = flags; |
1422 | a1d1bb31 | aliguori | |
1423 | 2dc9f411 | aliguori | /* keep all GDB-injected watchpoints in front */
|
1424 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1425 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
1426 | c0ce998e | aliguori | else
|
1427 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
1428 | 6658ffb8 | pbrook | |
1429 | 6658ffb8 | pbrook | tlb_flush_page(env, addr); |
1430 | a1d1bb31 | aliguori | |
1431 | a1d1bb31 | aliguori | if (watchpoint)
|
1432 | a1d1bb31 | aliguori | *watchpoint = wp; |
1433 | a1d1bb31 | aliguori | return 0; |
1434 | 6658ffb8 | pbrook | } |
1435 | 6658ffb8 | pbrook | |
1436 | a1d1bb31 | aliguori | /* Remove a specific watchpoint. */
|
1437 | a1d1bb31 | aliguori | int cpu_watchpoint_remove(CPUState *env, target_ulong addr, target_ulong len,
|
1438 | a1d1bb31 | aliguori | int flags)
|
1439 | 6658ffb8 | pbrook | { |
1440 | b4051334 | aliguori | target_ulong len_mask = ~(len - 1);
|
1441 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
1442 | 6658ffb8 | pbrook | |
1443 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1444 | b4051334 | aliguori | if (addr == wp->vaddr && len_mask == wp->len_mask
|
1445 | 6e140f28 | aliguori | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
1446 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1447 | 6658ffb8 | pbrook | return 0; |
1448 | 6658ffb8 | pbrook | } |
1449 | 6658ffb8 | pbrook | } |
1450 | a1d1bb31 | aliguori | return -ENOENT;
|
1451 | 6658ffb8 | pbrook | } |
1452 | 6658ffb8 | pbrook | |
1453 | a1d1bb31 | aliguori | /* Remove a specific watchpoint by reference. */
|
1454 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint)
|
1455 | a1d1bb31 | aliguori | { |
1456 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
1457 | 7d03f82f | edgar_igl | |
1458 | a1d1bb31 | aliguori | tlb_flush_page(env, watchpoint->vaddr); |
1459 | a1d1bb31 | aliguori | |
1460 | a1d1bb31 | aliguori | qemu_free(watchpoint); |
1461 | a1d1bb31 | aliguori | } |
1462 | a1d1bb31 | aliguori | |
1463 | a1d1bb31 | aliguori | /* Remove all matching watchpoints. */
|
1464 | a1d1bb31 | aliguori | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
1465 | a1d1bb31 | aliguori | { |
1466 | c0ce998e | aliguori | CPUWatchpoint *wp, *next; |
1467 | a1d1bb31 | aliguori | |
1468 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
1469 | a1d1bb31 | aliguori | if (wp->flags & mask)
|
1470 | a1d1bb31 | aliguori | cpu_watchpoint_remove_by_ref(env, wp); |
1471 | c0ce998e | aliguori | } |
1472 | 7d03f82f | edgar_igl | } |
1473 | c527ee8f | Paul Brook | #endif
|
1474 | 7d03f82f | edgar_igl | |
1475 | a1d1bb31 | aliguori | /* Add a breakpoint. */
|
1476 | a1d1bb31 | aliguori | int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, |
1477 | a1d1bb31 | aliguori | CPUBreakpoint **breakpoint) |
1478 | 4c3a88a2 | bellard | { |
1479 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1480 | c0ce998e | aliguori | CPUBreakpoint *bp; |
1481 | 3b46e624 | ths | |
1482 | a1d1bb31 | aliguori | bp = qemu_malloc(sizeof(*bp));
|
1483 | 4c3a88a2 | bellard | |
1484 | a1d1bb31 | aliguori | bp->pc = pc; |
1485 | a1d1bb31 | aliguori | bp->flags = flags; |
1486 | a1d1bb31 | aliguori | |
1487 | 2dc9f411 | aliguori | /* keep all GDB-injected breakpoints in front */
|
1488 | c0ce998e | aliguori | if (flags & BP_GDB)
|
1489 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
1490 | c0ce998e | aliguori | else
|
1491 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
1492 | 3b46e624 | ths | |
1493 | d720b93d | bellard | breakpoint_invalidate(env, pc); |
1494 | a1d1bb31 | aliguori | |
1495 | a1d1bb31 | aliguori | if (breakpoint)
|
1496 | a1d1bb31 | aliguori | *breakpoint = bp; |
1497 | 4c3a88a2 | bellard | return 0; |
1498 | 4c3a88a2 | bellard | #else
|
1499 | a1d1bb31 | aliguori | return -ENOSYS;
|
1500 | 4c3a88a2 | bellard | #endif
|
1501 | 4c3a88a2 | bellard | } |
1502 | 4c3a88a2 | bellard | |
1503 | a1d1bb31 | aliguori | /* Remove a specific breakpoint. */
|
1504 | a1d1bb31 | aliguori | int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags) |
1505 | a1d1bb31 | aliguori | { |
1506 | 7d03f82f | edgar_igl | #if defined(TARGET_HAS_ICE)
|
1507 | a1d1bb31 | aliguori | CPUBreakpoint *bp; |
1508 | a1d1bb31 | aliguori | |
1509 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1510 | a1d1bb31 | aliguori | if (bp->pc == pc && bp->flags == flags) {
|
1511 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1512 | a1d1bb31 | aliguori | return 0; |
1513 | a1d1bb31 | aliguori | } |
1514 | 7d03f82f | edgar_igl | } |
1515 | a1d1bb31 | aliguori | return -ENOENT;
|
1516 | a1d1bb31 | aliguori | #else
|
1517 | a1d1bb31 | aliguori | return -ENOSYS;
|
1518 | 7d03f82f | edgar_igl | #endif
|
1519 | 7d03f82f | edgar_igl | } |
1520 | 7d03f82f | edgar_igl | |
1521 | a1d1bb31 | aliguori | /* Remove a specific breakpoint by reference. */
|
1522 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint)
|
1523 | 4c3a88a2 | bellard | { |
1524 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1525 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
1526 | d720b93d | bellard | |
1527 | a1d1bb31 | aliguori | breakpoint_invalidate(env, breakpoint->pc); |
1528 | a1d1bb31 | aliguori | |
1529 | a1d1bb31 | aliguori | qemu_free(breakpoint); |
1530 | a1d1bb31 | aliguori | #endif
|
1531 | a1d1bb31 | aliguori | } |
1532 | a1d1bb31 | aliguori | |
1533 | a1d1bb31 | aliguori | /* Remove all matching breakpoints. */
|
1534 | a1d1bb31 | aliguori | void cpu_breakpoint_remove_all(CPUState *env, int mask) |
1535 | a1d1bb31 | aliguori | { |
1536 | a1d1bb31 | aliguori | #if defined(TARGET_HAS_ICE)
|
1537 | c0ce998e | aliguori | CPUBreakpoint *bp, *next; |
1538 | a1d1bb31 | aliguori | |
1539 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
1540 | a1d1bb31 | aliguori | if (bp->flags & mask)
|
1541 | a1d1bb31 | aliguori | cpu_breakpoint_remove_by_ref(env, bp); |
1542 | c0ce998e | aliguori | } |
1543 | 4c3a88a2 | bellard | #endif
|
1544 | 4c3a88a2 | bellard | } |
1545 | 4c3a88a2 | bellard | |
1546 | c33a346e | bellard | /* enable or disable single step mode. EXCP_DEBUG is returned by the
|
1547 | c33a346e | bellard | CPU loop after each instruction */
|
1548 | c33a346e | bellard | void cpu_single_step(CPUState *env, int enabled) |
1549 | c33a346e | bellard | { |
1550 | 1fddef4b | bellard | #if defined(TARGET_HAS_ICE)
|
1551 | c33a346e | bellard | if (env->singlestep_enabled != enabled) {
|
1552 | c33a346e | bellard | env->singlestep_enabled = enabled; |
1553 | e22a25c9 | aliguori | if (kvm_enabled())
|
1554 | e22a25c9 | aliguori | kvm_update_guest_debug(env, 0);
|
1555 | e22a25c9 | aliguori | else {
|
1556 | ccbb4d44 | Stuart Brady | /* must flush all the translated code to avoid inconsistencies */
|
1557 | e22a25c9 | aliguori | /* XXX: only flush what is necessary */
|
1558 | e22a25c9 | aliguori | tb_flush(env); |
1559 | e22a25c9 | aliguori | } |
1560 | c33a346e | bellard | } |
1561 | c33a346e | bellard | #endif
|
1562 | c33a346e | bellard | } |
1563 | c33a346e | bellard | |
1564 | 34865134 | bellard | /* enable or disable low levels log */
|
1565 | 34865134 | bellard | void cpu_set_log(int log_flags) |
1566 | 34865134 | bellard | { |
1567 | 34865134 | bellard | loglevel = log_flags; |
1568 | 34865134 | bellard | if (loglevel && !logfile) {
|
1569 | 11fcfab4 | pbrook | logfile = fopen(logfilename, log_append ? "a" : "w"); |
1570 | 34865134 | bellard | if (!logfile) {
|
1571 | 34865134 | bellard | perror(logfilename); |
1572 | 34865134 | bellard | _exit(1);
|
1573 | 34865134 | bellard | } |
1574 | 9fa3e853 | bellard | #if !defined(CONFIG_SOFTMMU)
|
1575 | 9fa3e853 | bellard | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
1576 | 9fa3e853 | bellard | { |
1577 | b55266b5 | blueswir1 | static char logfile_buf[4096]; |
1578 | 9fa3e853 | bellard | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
|
1579 | 9fa3e853 | bellard | } |
1580 | bf65f53f | Filip Navara | #elif !defined(_WIN32)
|
1581 | bf65f53f | Filip Navara | /* Win32 doesn't support line-buffering and requires size >= 2 */
|
1582 | 34865134 | bellard | setvbuf(logfile, NULL, _IOLBF, 0); |
1583 | 9fa3e853 | bellard | #endif
|
1584 | e735b91c | pbrook | log_append = 1;
|
1585 | e735b91c | pbrook | } |
1586 | e735b91c | pbrook | if (!loglevel && logfile) {
|
1587 | e735b91c | pbrook | fclose(logfile); |
1588 | e735b91c | pbrook | logfile = NULL;
|
1589 | 34865134 | bellard | } |
1590 | 34865134 | bellard | } |
1591 | 34865134 | bellard | |
1592 | 34865134 | bellard | void cpu_set_log_filename(const char *filename) |
1593 | 34865134 | bellard | { |
1594 | 34865134 | bellard | logfilename = strdup(filename); |
1595 | e735b91c | pbrook | if (logfile) {
|
1596 | e735b91c | pbrook | fclose(logfile); |
1597 | e735b91c | pbrook | logfile = NULL;
|
1598 | e735b91c | pbrook | } |
1599 | e735b91c | pbrook | cpu_set_log(loglevel); |
1600 | 34865134 | bellard | } |
1601 | c33a346e | bellard | |
1602 | 3098dba0 | aurel32 | static void cpu_unlink_tb(CPUState *env) |
1603 | ea041c0e | bellard | { |
1604 | 3098dba0 | aurel32 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the
|
1605 | 3098dba0 | aurel32 | problem and hope the cpu will stop of its own accord. For userspace
|
1606 | 3098dba0 | aurel32 | emulation this often isn't actually as bad as it sounds. Often
|
1607 | 3098dba0 | aurel32 | signals are used primarily to interrupt blocking syscalls. */
|
1608 | ea041c0e | bellard | TranslationBlock *tb; |
1609 | c227f099 | Anthony Liguori | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED;
|
1610 | 59817ccb | bellard | |
1611 | cab1b4bd | Riku Voipio | spin_lock(&interrupt_lock); |
1612 | 3098dba0 | aurel32 | tb = env->current_tb; |
1613 | 3098dba0 | aurel32 | /* if the cpu is currently executing code, we must unlink it and
|
1614 | 3098dba0 | aurel32 | all the potentially executing TB */
|
1615 | f76cfe56 | Riku Voipio | if (tb) {
|
1616 | 3098dba0 | aurel32 | env->current_tb = NULL;
|
1617 | 3098dba0 | aurel32 | tb_reset_jump_recursive(tb); |
1618 | be214e6c | aurel32 | } |
1619 | cab1b4bd | Riku Voipio | spin_unlock(&interrupt_lock); |
1620 | 3098dba0 | aurel32 | } |
1621 | 3098dba0 | aurel32 | |
1622 | 3098dba0 | aurel32 | /* mask must never be zero, except for A20 change call */
|
1623 | 3098dba0 | aurel32 | void cpu_interrupt(CPUState *env, int mask) |
1624 | 3098dba0 | aurel32 | { |
1625 | 3098dba0 | aurel32 | int old_mask;
|
1626 | be214e6c | aurel32 | |
1627 | 2e70f6ef | pbrook | old_mask = env->interrupt_request; |
1628 | 68a79315 | bellard | env->interrupt_request |= mask; |
1629 | 3098dba0 | aurel32 | |
1630 | 8edac960 | aliguori | #ifndef CONFIG_USER_ONLY
|
1631 | 8edac960 | aliguori | /*
|
1632 | 8edac960 | aliguori | * If called from iothread context, wake the target cpu in
|
1633 | 8edac960 | aliguori | * case its halted.
|
1634 | 8edac960 | aliguori | */
|
1635 | 8edac960 | aliguori | if (!qemu_cpu_self(env)) {
|
1636 | 8edac960 | aliguori | qemu_cpu_kick(env); |
1637 | 8edac960 | aliguori | return;
|
1638 | 8edac960 | aliguori | } |
1639 | 8edac960 | aliguori | #endif
|
1640 | 8edac960 | aliguori | |
1641 | 2e70f6ef | pbrook | if (use_icount) {
|
1642 | 266910c4 | pbrook | env->icount_decr.u16.high = 0xffff;
|
1643 | 2e70f6ef | pbrook | #ifndef CONFIG_USER_ONLY
|
1644 | 2e70f6ef | pbrook | if (!can_do_io(env)
|
1645 | be214e6c | aurel32 | && (mask & ~old_mask) != 0) {
|
1646 | 2e70f6ef | pbrook | cpu_abort(env, "Raised interrupt while not in I/O function");
|
1647 | 2e70f6ef | pbrook | } |
1648 | 2e70f6ef | pbrook | #endif
|
1649 | 2e70f6ef | pbrook | } else {
|
1650 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1651 | ea041c0e | bellard | } |
1652 | ea041c0e | bellard | } |
1653 | ea041c0e | bellard | |
1654 | b54ad049 | bellard | void cpu_reset_interrupt(CPUState *env, int mask) |
1655 | b54ad049 | bellard | { |
1656 | b54ad049 | bellard | env->interrupt_request &= ~mask; |
1657 | b54ad049 | bellard | } |
1658 | b54ad049 | bellard | |
1659 | 3098dba0 | aurel32 | void cpu_exit(CPUState *env)
|
1660 | 3098dba0 | aurel32 | { |
1661 | 3098dba0 | aurel32 | env->exit_request = 1;
|
1662 | 3098dba0 | aurel32 | cpu_unlink_tb(env); |
1663 | 3098dba0 | aurel32 | } |
1664 | 3098dba0 | aurel32 | |
1665 | c7cd6a37 | blueswir1 | const CPULogItem cpu_log_items[] = {
|
1666 | 5fafdf24 | ths | { CPU_LOG_TB_OUT_ASM, "out_asm",
|
1667 | f193c797 | bellard | "show generated host assembly code for each compiled TB" },
|
1668 | f193c797 | bellard | { CPU_LOG_TB_IN_ASM, "in_asm",
|
1669 | f193c797 | bellard | "show target assembly code for each compiled TB" },
|
1670 | 5fafdf24 | ths | { CPU_LOG_TB_OP, "op",
|
1671 | 57fec1fe | bellard | "show micro ops for each compiled TB" },
|
1672 | f193c797 | bellard | { CPU_LOG_TB_OP_OPT, "op_opt",
|
1673 | e01a1157 | blueswir1 | "show micro ops "
|
1674 | e01a1157 | blueswir1 | #ifdef TARGET_I386
|
1675 | e01a1157 | blueswir1 | "before eflags optimization and "
|
1676 | f193c797 | bellard | #endif
|
1677 | e01a1157 | blueswir1 | "after liveness analysis" },
|
1678 | f193c797 | bellard | { CPU_LOG_INT, "int",
|
1679 | f193c797 | bellard | "show interrupts/exceptions in short format" },
|
1680 | f193c797 | bellard | { CPU_LOG_EXEC, "exec",
|
1681 | f193c797 | bellard | "show trace before each executed TB (lots of logs)" },
|
1682 | 9fddaa0c | bellard | { CPU_LOG_TB_CPU, "cpu",
|
1683 | e91c8a77 | ths | "show CPU state before block translation" },
|
1684 | f193c797 | bellard | #ifdef TARGET_I386
|
1685 | f193c797 | bellard | { CPU_LOG_PCALL, "pcall",
|
1686 | f193c797 | bellard | "show protected mode far calls/returns/exceptions" },
|
1687 | eca1bdf4 | aliguori | { CPU_LOG_RESET, "cpu_reset",
|
1688 | eca1bdf4 | aliguori | "show CPU state before CPU resets" },
|
1689 | f193c797 | bellard | #endif
|
1690 | 8e3a9fd2 | bellard | #ifdef DEBUG_IOPORT
|
1691 | fd872598 | bellard | { CPU_LOG_IOPORT, "ioport",
|
1692 | fd872598 | bellard | "show all i/o ports accesses" },
|
1693 | 8e3a9fd2 | bellard | #endif
|
1694 | f193c797 | bellard | { 0, NULL, NULL }, |
1695 | f193c797 | bellard | }; |
1696 | f193c797 | bellard | |
1697 | f6f3fbca | Michael S. Tsirkin | #ifndef CONFIG_USER_ONLY
|
1698 | f6f3fbca | Michael S. Tsirkin | static QLIST_HEAD(memory_client_list, CPUPhysMemoryClient) memory_client_list
|
1699 | f6f3fbca | Michael S. Tsirkin | = QLIST_HEAD_INITIALIZER(memory_client_list); |
1700 | f6f3fbca | Michael S. Tsirkin | |
1701 | f6f3fbca | Michael S. Tsirkin | static void cpu_notify_set_memory(target_phys_addr_t start_addr, |
1702 | 9742bf26 | Yoshiaki Tamura | ram_addr_t size, |
1703 | 9742bf26 | Yoshiaki Tamura | ram_addr_t phys_offset) |
1704 | f6f3fbca | Michael S. Tsirkin | { |
1705 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1706 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1707 | f6f3fbca | Michael S. Tsirkin | client->set_memory(client, start_addr, size, phys_offset); |
1708 | f6f3fbca | Michael S. Tsirkin | } |
1709 | f6f3fbca | Michael S. Tsirkin | } |
1710 | f6f3fbca | Michael S. Tsirkin | |
1711 | f6f3fbca | Michael S. Tsirkin | static int cpu_notify_sync_dirty_bitmap(target_phys_addr_t start, |
1712 | 9742bf26 | Yoshiaki Tamura | target_phys_addr_t end) |
1713 | f6f3fbca | Michael S. Tsirkin | { |
1714 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1715 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1716 | f6f3fbca | Michael S. Tsirkin | int r = client->sync_dirty_bitmap(client, start, end);
|
1717 | f6f3fbca | Michael S. Tsirkin | if (r < 0) |
1718 | f6f3fbca | Michael S. Tsirkin | return r;
|
1719 | f6f3fbca | Michael S. Tsirkin | } |
1720 | f6f3fbca | Michael S. Tsirkin | return 0; |
1721 | f6f3fbca | Michael S. Tsirkin | } |
1722 | f6f3fbca | Michael S. Tsirkin | |
1723 | f6f3fbca | Michael S. Tsirkin | static int cpu_notify_migration_log(int enable) |
1724 | f6f3fbca | Michael S. Tsirkin | { |
1725 | f6f3fbca | Michael S. Tsirkin | CPUPhysMemoryClient *client; |
1726 | f6f3fbca | Michael S. Tsirkin | QLIST_FOREACH(client, &memory_client_list, list) { |
1727 | f6f3fbca | Michael S. Tsirkin | int r = client->migration_log(client, enable);
|
1728 | f6f3fbca | Michael S. Tsirkin | if (r < 0) |
1729 | f6f3fbca | Michael S. Tsirkin | return r;
|
1730 | f6f3fbca | Michael S. Tsirkin | } |
1731 | f6f3fbca | Michael S. Tsirkin | return 0; |
1732 | f6f3fbca | Michael S. Tsirkin | } |
1733 | f6f3fbca | Michael S. Tsirkin | |
1734 | 5cd2c5b6 | Richard Henderson | static void phys_page_for_each_1(CPUPhysMemoryClient *client, |
1735 | 5cd2c5b6 | Richard Henderson | int level, void **lp) |
1736 | f6f3fbca | Michael S. Tsirkin | { |
1737 | 5cd2c5b6 | Richard Henderson | int i;
|
1738 | f6f3fbca | Michael S. Tsirkin | |
1739 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
1740 | 5cd2c5b6 | Richard Henderson | return;
|
1741 | 5cd2c5b6 | Richard Henderson | } |
1742 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
1743 | 5cd2c5b6 | Richard Henderson | PhysPageDesc *pd = *lp; |
1744 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
1745 | 5cd2c5b6 | Richard Henderson | if (pd[i].phys_offset != IO_MEM_UNASSIGNED) {
|
1746 | 5cd2c5b6 | Richard Henderson | client->set_memory(client, pd[i].region_offset, |
1747 | 5cd2c5b6 | Richard Henderson | TARGET_PAGE_SIZE, pd[i].phys_offset); |
1748 | f6f3fbca | Michael S. Tsirkin | } |
1749 | 5cd2c5b6 | Richard Henderson | } |
1750 | 5cd2c5b6 | Richard Henderson | } else {
|
1751 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
1752 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
1753 | 5cd2c5b6 | Richard Henderson | phys_page_for_each_1(client, level - 1, pp + i);
|
1754 | f6f3fbca | Michael S. Tsirkin | } |
1755 | f6f3fbca | Michael S. Tsirkin | } |
1756 | f6f3fbca | Michael S. Tsirkin | } |
1757 | f6f3fbca | Michael S. Tsirkin | |
1758 | f6f3fbca | Michael S. Tsirkin | static void phys_page_for_each(CPUPhysMemoryClient *client) |
1759 | f6f3fbca | Michael S. Tsirkin | { |
1760 | 5cd2c5b6 | Richard Henderson | int i;
|
1761 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < P_L1_SIZE; ++i) { |
1762 | 5cd2c5b6 | Richard Henderson | phys_page_for_each_1(client, P_L1_SHIFT / L2_BITS - 1,
|
1763 | 5cd2c5b6 | Richard Henderson | l1_phys_map + 1);
|
1764 | f6f3fbca | Michael S. Tsirkin | } |
1765 | f6f3fbca | Michael S. Tsirkin | } |
1766 | f6f3fbca | Michael S. Tsirkin | |
1767 | f6f3fbca | Michael S. Tsirkin | void cpu_register_phys_memory_client(CPUPhysMemoryClient *client)
|
1768 | f6f3fbca | Michael S. Tsirkin | { |
1769 | f6f3fbca | Michael S. Tsirkin | QLIST_INSERT_HEAD(&memory_client_list, client, list); |
1770 | f6f3fbca | Michael S. Tsirkin | phys_page_for_each(client); |
1771 | f6f3fbca | Michael S. Tsirkin | } |
1772 | f6f3fbca | Michael S. Tsirkin | |
1773 | f6f3fbca | Michael S. Tsirkin | void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *client)
|
1774 | f6f3fbca | Michael S. Tsirkin | { |
1775 | f6f3fbca | Michael S. Tsirkin | QLIST_REMOVE(client, list); |
1776 | f6f3fbca | Michael S. Tsirkin | } |
1777 | f6f3fbca | Michael S. Tsirkin | #endif
|
1778 | f6f3fbca | Michael S. Tsirkin | |
1779 | f193c797 | bellard | static int cmp1(const char *s1, int n, const char *s2) |
1780 | f193c797 | bellard | { |
1781 | f193c797 | bellard | if (strlen(s2) != n)
|
1782 | f193c797 | bellard | return 0; |
1783 | f193c797 | bellard | return memcmp(s1, s2, n) == 0; |
1784 | f193c797 | bellard | } |
1785 | 3b46e624 | ths | |
1786 | f193c797 | bellard | /* takes a comma separated list of log masks. Return 0 if error. */
|
1787 | f193c797 | bellard | int cpu_str_to_log_mask(const char *str) |
1788 | f193c797 | bellard | { |
1789 | c7cd6a37 | blueswir1 | const CPULogItem *item;
|
1790 | f193c797 | bellard | int mask;
|
1791 | f193c797 | bellard | const char *p, *p1; |
1792 | f193c797 | bellard | |
1793 | f193c797 | bellard | p = str; |
1794 | f193c797 | bellard | mask = 0;
|
1795 | f193c797 | bellard | for(;;) {
|
1796 | f193c797 | bellard | p1 = strchr(p, ',');
|
1797 | f193c797 | bellard | if (!p1)
|
1798 | f193c797 | bellard | p1 = p + strlen(p); |
1799 | 9742bf26 | Yoshiaki Tamura | if(cmp1(p,p1-p,"all")) { |
1800 | 9742bf26 | Yoshiaki Tamura | for(item = cpu_log_items; item->mask != 0; item++) { |
1801 | 9742bf26 | Yoshiaki Tamura | mask |= item->mask; |
1802 | 9742bf26 | Yoshiaki Tamura | } |
1803 | 9742bf26 | Yoshiaki Tamura | } else {
|
1804 | 9742bf26 | Yoshiaki Tamura | for(item = cpu_log_items; item->mask != 0; item++) { |
1805 | 9742bf26 | Yoshiaki Tamura | if (cmp1(p, p1 - p, item->name))
|
1806 | 9742bf26 | Yoshiaki Tamura | goto found;
|
1807 | 9742bf26 | Yoshiaki Tamura | } |
1808 | 9742bf26 | Yoshiaki Tamura | return 0; |
1809 | f193c797 | bellard | } |
1810 | f193c797 | bellard | found:
|
1811 | f193c797 | bellard | mask |= item->mask; |
1812 | f193c797 | bellard | if (*p1 != ',') |
1813 | f193c797 | bellard | break;
|
1814 | f193c797 | bellard | p = p1 + 1;
|
1815 | f193c797 | bellard | } |
1816 | f193c797 | bellard | return mask;
|
1817 | f193c797 | bellard | } |
1818 | ea041c0e | bellard | |
1819 | 7501267e | bellard | void cpu_abort(CPUState *env, const char *fmt, ...) |
1820 | 7501267e | bellard | { |
1821 | 7501267e | bellard | va_list ap; |
1822 | 493ae1f0 | pbrook | va_list ap2; |
1823 | 7501267e | bellard | |
1824 | 7501267e | bellard | va_start(ap, fmt); |
1825 | 493ae1f0 | pbrook | va_copy(ap2, ap); |
1826 | 7501267e | bellard | fprintf(stderr, "qemu: fatal: ");
|
1827 | 7501267e | bellard | vfprintf(stderr, fmt, ap); |
1828 | 7501267e | bellard | fprintf(stderr, "\n");
|
1829 | 7501267e | bellard | #ifdef TARGET_I386
|
1830 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
1831 | 7fe48483 | bellard | #else
|
1832 | 7fe48483 | bellard | cpu_dump_state(env, stderr, fprintf, 0);
|
1833 | 7501267e | bellard | #endif
|
1834 | 93fcfe39 | aliguori | if (qemu_log_enabled()) {
|
1835 | 93fcfe39 | aliguori | qemu_log("qemu: fatal: ");
|
1836 | 93fcfe39 | aliguori | qemu_log_vprintf(fmt, ap2); |
1837 | 93fcfe39 | aliguori | qemu_log("\n");
|
1838 | f9373291 | j_mayer | #ifdef TARGET_I386
|
1839 | 93fcfe39 | aliguori | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
1840 | f9373291 | j_mayer | #else
|
1841 | 93fcfe39 | aliguori | log_cpu_state(env, 0);
|
1842 | f9373291 | j_mayer | #endif
|
1843 | 31b1a7b4 | aliguori | qemu_log_flush(); |
1844 | 93fcfe39 | aliguori | qemu_log_close(); |
1845 | 924edcae | balrog | } |
1846 | 493ae1f0 | pbrook | va_end(ap2); |
1847 | f9373291 | j_mayer | va_end(ap); |
1848 | fd052bf6 | Riku Voipio | #if defined(CONFIG_USER_ONLY)
|
1849 | fd052bf6 | Riku Voipio | { |
1850 | fd052bf6 | Riku Voipio | struct sigaction act;
|
1851 | fd052bf6 | Riku Voipio | sigfillset(&act.sa_mask); |
1852 | fd052bf6 | Riku Voipio | act.sa_handler = SIG_DFL; |
1853 | fd052bf6 | Riku Voipio | sigaction(SIGABRT, &act, NULL);
|
1854 | fd052bf6 | Riku Voipio | } |
1855 | fd052bf6 | Riku Voipio | #endif
|
1856 | 7501267e | bellard | abort(); |
1857 | 7501267e | bellard | } |
1858 | 7501267e | bellard | |
1859 | c5be9f08 | ths | CPUState *cpu_copy(CPUState *env) |
1860 | c5be9f08 | ths | { |
1861 | 01ba9816 | ths | CPUState *new_env = cpu_init(env->cpu_model_str); |
1862 | c5be9f08 | ths | CPUState *next_cpu = new_env->next_cpu; |
1863 | c5be9f08 | ths | int cpu_index = new_env->cpu_index;
|
1864 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1865 | 5a38f081 | aliguori | CPUBreakpoint *bp; |
1866 | 5a38f081 | aliguori | CPUWatchpoint *wp; |
1867 | 5a38f081 | aliguori | #endif
|
1868 | 5a38f081 | aliguori | |
1869 | c5be9f08 | ths | memcpy(new_env, env, sizeof(CPUState));
|
1870 | 5a38f081 | aliguori | |
1871 | 5a38f081 | aliguori | /* Preserve chaining and index. */
|
1872 | c5be9f08 | ths | new_env->next_cpu = next_cpu; |
1873 | c5be9f08 | ths | new_env->cpu_index = cpu_index; |
1874 | 5a38f081 | aliguori | |
1875 | 5a38f081 | aliguori | /* Clone all break/watchpoints.
|
1876 | 5a38f081 | aliguori | Note: Once we support ptrace with hw-debug register access, make sure
|
1877 | 5a38f081 | aliguori | BP_CPU break/watchpoints are handled correctly on clone. */
|
1878 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->breakpoints); |
1879 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&env->watchpoints); |
1880 | 5a38f081 | aliguori | #if defined(TARGET_HAS_ICE)
|
1881 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
1882 | 5a38f081 | aliguori | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
|
1883 | 5a38f081 | aliguori | } |
1884 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
1885 | 5a38f081 | aliguori | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
|
1886 | 5a38f081 | aliguori | wp->flags, NULL);
|
1887 | 5a38f081 | aliguori | } |
1888 | 5a38f081 | aliguori | #endif
|
1889 | 5a38f081 | aliguori | |
1890 | c5be9f08 | ths | return new_env;
|
1891 | c5be9f08 | ths | } |
1892 | c5be9f08 | ths | |
1893 | 0124311e | bellard | #if !defined(CONFIG_USER_ONLY)
|
1894 | 0124311e | bellard | |
1895 | 5c751e99 | edgar_igl | static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr) |
1896 | 5c751e99 | edgar_igl | { |
1897 | 5c751e99 | edgar_igl | unsigned int i; |
1898 | 5c751e99 | edgar_igl | |
1899 | 5c751e99 | edgar_igl | /* Discard jump cache entries for any tb which might potentially
|
1900 | 5c751e99 | edgar_igl | overlap the flushed page. */
|
1901 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); |
1902 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1903 | 9742bf26 | Yoshiaki Tamura | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1904 | 5c751e99 | edgar_igl | |
1905 | 5c751e99 | edgar_igl | i = tb_jmp_cache_hash_page(addr); |
1906 | 5c751e99 | edgar_igl | memset (&env->tb_jmp_cache[i], 0,
|
1907 | 9742bf26 | Yoshiaki Tamura | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
|
1908 | 5c751e99 | edgar_igl | } |
1909 | 5c751e99 | edgar_igl | |
1910 | 08738984 | Igor Kovalenko | static CPUTLBEntry s_cputlb_empty_entry = {
|
1911 | 08738984 | Igor Kovalenko | .addr_read = -1,
|
1912 | 08738984 | Igor Kovalenko | .addr_write = -1,
|
1913 | 08738984 | Igor Kovalenko | .addr_code = -1,
|
1914 | 08738984 | Igor Kovalenko | .addend = -1,
|
1915 | 08738984 | Igor Kovalenko | }; |
1916 | 08738984 | Igor Kovalenko | |
1917 | ee8b7021 | bellard | /* NOTE: if flush_global is true, also flush global entries (not
|
1918 | ee8b7021 | bellard | implemented yet) */
|
1919 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
1920 | 33417e70 | bellard | { |
1921 | 33417e70 | bellard | int i;
|
1922 | 0124311e | bellard | |
1923 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1924 | 9fa3e853 | bellard | printf("tlb_flush:\n");
|
1925 | 9fa3e853 | bellard | #endif
|
1926 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1927 | 0124311e | bellard | links while we are modifying them */
|
1928 | 0124311e | bellard | env->current_tb = NULL;
|
1929 | 0124311e | bellard | |
1930 | 33417e70 | bellard | for(i = 0; i < CPU_TLB_SIZE; i++) { |
1931 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1932 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
1933 | 08738984 | Igor Kovalenko | env->tlb_table[mmu_idx][i] = s_cputlb_empty_entry; |
1934 | cfde4bd9 | Isaku Yamahata | } |
1935 | 33417e70 | bellard | } |
1936 | 9fa3e853 | bellard | |
1937 | 8a40a180 | bellard | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
1938 | 9fa3e853 | bellard | |
1939 | d4c430a8 | Paul Brook | env->tlb_flush_addr = -1;
|
1940 | d4c430a8 | Paul Brook | env->tlb_flush_mask = 0;
|
1941 | e3db7226 | bellard | tlb_flush_count++; |
1942 | 33417e70 | bellard | } |
1943 | 33417e70 | bellard | |
1944 | 274da6b2 | bellard | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
1945 | 61382a50 | bellard | { |
1946 | 5fafdf24 | ths | if (addr == (tlb_entry->addr_read &
|
1947 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1948 | 5fafdf24 | ths | addr == (tlb_entry->addr_write & |
1949 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
1950 | 5fafdf24 | ths | addr == (tlb_entry->addr_code & |
1951 | 84b7b8e7 | bellard | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
1952 | 08738984 | Igor Kovalenko | *tlb_entry = s_cputlb_empty_entry; |
1953 | 84b7b8e7 | bellard | } |
1954 | 61382a50 | bellard | } |
1955 | 61382a50 | bellard | |
1956 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
1957 | 33417e70 | bellard | { |
1958 | 8a40a180 | bellard | int i;
|
1959 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
1960 | 0124311e | bellard | |
1961 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
1962 | 108c49b8 | bellard | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
1963 | 9fa3e853 | bellard | #endif
|
1964 | d4c430a8 | Paul Brook | /* Check if we need to flush due to large pages. */
|
1965 | d4c430a8 | Paul Brook | if ((addr & env->tlb_flush_mask) == env->tlb_flush_addr) {
|
1966 | d4c430a8 | Paul Brook | #if defined(DEBUG_TLB)
|
1967 | d4c430a8 | Paul Brook | printf("tlb_flush_page: forced full flush ("
|
1968 | d4c430a8 | Paul Brook | TARGET_FMT_lx "/" TARGET_FMT_lx ")\n", |
1969 | d4c430a8 | Paul Brook | env->tlb_flush_addr, env->tlb_flush_mask); |
1970 | d4c430a8 | Paul Brook | #endif
|
1971 | d4c430a8 | Paul Brook | tlb_flush(env, 1);
|
1972 | d4c430a8 | Paul Brook | return;
|
1973 | d4c430a8 | Paul Brook | } |
1974 | 0124311e | bellard | /* must reset current TB so that interrupts cannot modify the
|
1975 | 0124311e | bellard | links while we are modifying them */
|
1976 | 0124311e | bellard | env->current_tb = NULL;
|
1977 | 61382a50 | bellard | |
1978 | 61382a50 | bellard | addr &= TARGET_PAGE_MASK; |
1979 | 61382a50 | bellard | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
1980 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
1981 | cfde4bd9 | Isaku Yamahata | tlb_flush_entry(&env->tlb_table[mmu_idx][i], addr); |
1982 | 0124311e | bellard | |
1983 | 5c751e99 | edgar_igl | tlb_flush_jmp_cache(env, addr); |
1984 | 9fa3e853 | bellard | } |
1985 | 9fa3e853 | bellard | |
1986 | 9fa3e853 | bellard | /* update the TLBs so that writes to code in the virtual page 'addr'
|
1987 | 9fa3e853 | bellard | can be detected */
|
1988 | c227f099 | Anthony Liguori | static void tlb_protect_code(ram_addr_t ram_addr) |
1989 | 9fa3e853 | bellard | { |
1990 | 5fafdf24 | ths | cpu_physical_memory_reset_dirty(ram_addr, |
1991 | 6a00d601 | bellard | ram_addr + TARGET_PAGE_SIZE, |
1992 | 6a00d601 | bellard | CODE_DIRTY_FLAG); |
1993 | 9fa3e853 | bellard | } |
1994 | 9fa3e853 | bellard | |
1995 | 9fa3e853 | bellard | /* update the TLB so that writes in physical page 'phys_addr' are no longer
|
1996 | 3a7d929e | bellard | tested for self modifying code */
|
1997 | c227f099 | Anthony Liguori | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
1998 | 3a7d929e | bellard | target_ulong vaddr) |
1999 | 9fa3e853 | bellard | { |
2000 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, CODE_DIRTY_FLAG); |
2001 | 1ccde1cb | bellard | } |
2002 | 1ccde1cb | bellard | |
2003 | 5fafdf24 | ths | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
2004 | 1ccde1cb | bellard | unsigned long start, unsigned long length) |
2005 | 1ccde1cb | bellard | { |
2006 | 1ccde1cb | bellard | unsigned long addr; |
2007 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
2008 | 84b7b8e7 | bellard | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
2009 | 1ccde1cb | bellard | if ((addr - start) < length) {
|
2010 | 0f459d16 | pbrook | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | TLB_NOTDIRTY; |
2011 | 1ccde1cb | bellard | } |
2012 | 1ccde1cb | bellard | } |
2013 | 1ccde1cb | bellard | } |
2014 | 1ccde1cb | bellard | |
2015 | 5579c7f3 | pbrook | /* Note: start and end must be within the same ram block. */
|
2016 | c227f099 | Anthony Liguori | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
2017 | 0a962c02 | bellard | int dirty_flags)
|
2018 | 1ccde1cb | bellard | { |
2019 | 1ccde1cb | bellard | CPUState *env; |
2020 | 4f2ac237 | bellard | unsigned long length, start1; |
2021 | f7c11b53 | Yoshiaki Tamura | int i;
|
2022 | 1ccde1cb | bellard | |
2023 | 1ccde1cb | bellard | start &= TARGET_PAGE_MASK; |
2024 | 1ccde1cb | bellard | end = TARGET_PAGE_ALIGN(end); |
2025 | 1ccde1cb | bellard | |
2026 | 1ccde1cb | bellard | length = end - start; |
2027 | 1ccde1cb | bellard | if (length == 0) |
2028 | 1ccde1cb | bellard | return;
|
2029 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
2030 | f23db169 | bellard | |
2031 | 1ccde1cb | bellard | /* we modify the TLB cache so that the dirty bit will be set again
|
2032 | 1ccde1cb | bellard | when accessing the range */
|
2033 | b2e0a138 | Michael S. Tsirkin | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
2034 | 5579c7f3 | pbrook | /* Chek that we don't span multiple blocks - this breaks the
|
2035 | 5579c7f3 | pbrook | address comparisons below. */
|
2036 | b2e0a138 | Michael S. Tsirkin | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
2037 | 5579c7f3 | pbrook | != (end - 1) - start) {
|
2038 | 5579c7f3 | pbrook | abort(); |
2039 | 5579c7f3 | pbrook | } |
2040 | 5579c7f3 | pbrook | |
2041 | 6a00d601 | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2042 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2043 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
2044 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
2045 | cfde4bd9 | Isaku Yamahata | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
2046 | cfde4bd9 | Isaku Yamahata | start1, length); |
2047 | cfde4bd9 | Isaku Yamahata | } |
2048 | 6a00d601 | bellard | } |
2049 | 1ccde1cb | bellard | } |
2050 | 1ccde1cb | bellard | |
2051 | 74576198 | aliguori | int cpu_physical_memory_set_dirty_tracking(int enable) |
2052 | 74576198 | aliguori | { |
2053 | f6f3fbca | Michael S. Tsirkin | int ret = 0; |
2054 | 74576198 | aliguori | in_migration = enable; |
2055 | f6f3fbca | Michael S. Tsirkin | ret = cpu_notify_migration_log(!!enable); |
2056 | f6f3fbca | Michael S. Tsirkin | return ret;
|
2057 | 74576198 | aliguori | } |
2058 | 74576198 | aliguori | |
2059 | 74576198 | aliguori | int cpu_physical_memory_get_dirty_tracking(void) |
2060 | 74576198 | aliguori | { |
2061 | 74576198 | aliguori | return in_migration;
|
2062 | 74576198 | aliguori | } |
2063 | 74576198 | aliguori | |
2064 | c227f099 | Anthony Liguori | int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
|
2065 | c227f099 | Anthony Liguori | target_phys_addr_t end_addr) |
2066 | 2bec46dc | aliguori | { |
2067 | 7b8f3b78 | Michael S. Tsirkin | int ret;
|
2068 | 151f7749 | Jan Kiszka | |
2069 | f6f3fbca | Michael S. Tsirkin | ret = cpu_notify_sync_dirty_bitmap(start_addr, end_addr); |
2070 | 151f7749 | Jan Kiszka | return ret;
|
2071 | 2bec46dc | aliguori | } |
2072 | 2bec46dc | aliguori | |
2073 | 3a7d929e | bellard | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
2074 | 3a7d929e | bellard | { |
2075 | c227f099 | Anthony Liguori | ram_addr_t ram_addr; |
2076 | 5579c7f3 | pbrook | void *p;
|
2077 | 3a7d929e | bellard | |
2078 | 84b7b8e7 | bellard | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) {
|
2079 | 5579c7f3 | pbrook | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
2080 | 5579c7f3 | pbrook | + tlb_entry->addend); |
2081 | e890261f | Marcelo Tosatti | ram_addr = qemu_ram_addr_from_host_nofail(p); |
2082 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(ram_addr)) {
|
2083 | 0f459d16 | pbrook | tlb_entry->addr_write |= TLB_NOTDIRTY; |
2084 | 3a7d929e | bellard | } |
2085 | 3a7d929e | bellard | } |
2086 | 3a7d929e | bellard | } |
2087 | 3a7d929e | bellard | |
2088 | 3a7d929e | bellard | /* update the TLB according to the current state of the dirty bits */
|
2089 | 3a7d929e | bellard | void cpu_tlb_update_dirty(CPUState *env)
|
2090 | 3a7d929e | bellard | { |
2091 | 3a7d929e | bellard | int i;
|
2092 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2093 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
2094 | cfde4bd9 | Isaku Yamahata | for(i = 0; i < CPU_TLB_SIZE; i++) |
2095 | cfde4bd9 | Isaku Yamahata | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
2096 | cfde4bd9 | Isaku Yamahata | } |
2097 | 3a7d929e | bellard | } |
2098 | 3a7d929e | bellard | |
2099 | 0f459d16 | pbrook | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, target_ulong vaddr) |
2100 | 1ccde1cb | bellard | { |
2101 | 0f459d16 | pbrook | if (tlb_entry->addr_write == (vaddr | TLB_NOTDIRTY))
|
2102 | 0f459d16 | pbrook | tlb_entry->addr_write = vaddr; |
2103 | 1ccde1cb | bellard | } |
2104 | 1ccde1cb | bellard | |
2105 | 0f459d16 | pbrook | /* update the TLB corresponding to virtual page vaddr
|
2106 | 0f459d16 | pbrook | so that it is no longer dirty */
|
2107 | 0f459d16 | pbrook | static inline void tlb_set_dirty(CPUState *env, target_ulong vaddr) |
2108 | 1ccde1cb | bellard | { |
2109 | 1ccde1cb | bellard | int i;
|
2110 | cfde4bd9 | Isaku Yamahata | int mmu_idx;
|
2111 | 1ccde1cb | bellard | |
2112 | 0f459d16 | pbrook | vaddr &= TARGET_PAGE_MASK; |
2113 | 1ccde1cb | bellard | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2114 | cfde4bd9 | Isaku Yamahata | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) |
2115 | cfde4bd9 | Isaku Yamahata | tlb_set_dirty1(&env->tlb_table[mmu_idx][i], vaddr); |
2116 | 9fa3e853 | bellard | } |
2117 | 9fa3e853 | bellard | |
2118 | d4c430a8 | Paul Brook | /* Our TLB does not support large pages, so remember the area covered by
|
2119 | d4c430a8 | Paul Brook | large pages and trigger a full TLB flush if these are invalidated. */
|
2120 | d4c430a8 | Paul Brook | static void tlb_add_large_page(CPUState *env, target_ulong vaddr, |
2121 | d4c430a8 | Paul Brook | target_ulong size) |
2122 | d4c430a8 | Paul Brook | { |
2123 | d4c430a8 | Paul Brook | target_ulong mask = ~(size - 1);
|
2124 | d4c430a8 | Paul Brook | |
2125 | d4c430a8 | Paul Brook | if (env->tlb_flush_addr == (target_ulong)-1) { |
2126 | d4c430a8 | Paul Brook | env->tlb_flush_addr = vaddr & mask; |
2127 | d4c430a8 | Paul Brook | env->tlb_flush_mask = mask; |
2128 | d4c430a8 | Paul Brook | return;
|
2129 | d4c430a8 | Paul Brook | } |
2130 | d4c430a8 | Paul Brook | /* Extend the existing region to include the new page.
|
2131 | d4c430a8 | Paul Brook | This is a compromise between unnecessary flushes and the cost
|
2132 | d4c430a8 | Paul Brook | of maintaining a full variable size TLB. */
|
2133 | d4c430a8 | Paul Brook | mask &= env->tlb_flush_mask; |
2134 | d4c430a8 | Paul Brook | while (((env->tlb_flush_addr ^ vaddr) & mask) != 0) { |
2135 | d4c430a8 | Paul Brook | mask <<= 1;
|
2136 | d4c430a8 | Paul Brook | } |
2137 | d4c430a8 | Paul Brook | env->tlb_flush_addr &= mask; |
2138 | d4c430a8 | Paul Brook | env->tlb_flush_mask = mask; |
2139 | d4c430a8 | Paul Brook | } |
2140 | d4c430a8 | Paul Brook | |
2141 | d4c430a8 | Paul Brook | /* Add a new TLB entry. At most one entry for a given virtual address
|
2142 | d4c430a8 | Paul Brook | is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the
|
2143 | d4c430a8 | Paul Brook | supplied size is only used by tlb_flush_page. */
|
2144 | d4c430a8 | Paul Brook | void tlb_set_page(CPUState *env, target_ulong vaddr,
|
2145 | d4c430a8 | Paul Brook | target_phys_addr_t paddr, int prot,
|
2146 | d4c430a8 | Paul Brook | int mmu_idx, target_ulong size)
|
2147 | 9fa3e853 | bellard | { |
2148 | 92e873b9 | bellard | PhysPageDesc *p; |
2149 | 4f2ac237 | bellard | unsigned long pd; |
2150 | 9fa3e853 | bellard | unsigned int index; |
2151 | 4f2ac237 | bellard | target_ulong address; |
2152 | 0f459d16 | pbrook | target_ulong code_address; |
2153 | 355b1943 | Paul Brook | unsigned long addend; |
2154 | 84b7b8e7 | bellard | CPUTLBEntry *te; |
2155 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
2156 | c227f099 | Anthony Liguori | target_phys_addr_t iotlb; |
2157 | 9fa3e853 | bellard | |
2158 | d4c430a8 | Paul Brook | assert(size >= TARGET_PAGE_SIZE); |
2159 | d4c430a8 | Paul Brook | if (size != TARGET_PAGE_SIZE) {
|
2160 | d4c430a8 | Paul Brook | tlb_add_large_page(env, vaddr, size); |
2161 | d4c430a8 | Paul Brook | } |
2162 | 92e873b9 | bellard | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
2163 | 9fa3e853 | bellard | if (!p) {
|
2164 | 9fa3e853 | bellard | pd = IO_MEM_UNASSIGNED; |
2165 | 9fa3e853 | bellard | } else {
|
2166 | 9fa3e853 | bellard | pd = p->phys_offset; |
2167 | 9fa3e853 | bellard | } |
2168 | 9fa3e853 | bellard | #if defined(DEBUG_TLB)
|
2169 | 7fd3f494 | Stefan Weil | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x" TARGET_FMT_plx |
2170 | 7fd3f494 | Stefan Weil | " prot=%x idx=%d pd=0x%08lx\n",
|
2171 | 7fd3f494 | Stefan Weil | vaddr, paddr, prot, mmu_idx, pd); |
2172 | 9fa3e853 | bellard | #endif
|
2173 | 9fa3e853 | bellard | |
2174 | 0f459d16 | pbrook | address = vaddr; |
2175 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
|
2176 | 0f459d16 | pbrook | /* IO memory case (romd handled later) */
|
2177 | 0f459d16 | pbrook | address |= TLB_MMIO; |
2178 | 0f459d16 | pbrook | } |
2179 | 5579c7f3 | pbrook | addend = (unsigned long)qemu_get_ram_ptr(pd & TARGET_PAGE_MASK); |
2180 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) {
|
2181 | 0f459d16 | pbrook | /* Normal RAM. */
|
2182 | 0f459d16 | pbrook | iotlb = pd & TARGET_PAGE_MASK; |
2183 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
|
2184 | 0f459d16 | pbrook | iotlb |= IO_MEM_NOTDIRTY; |
2185 | 0f459d16 | pbrook | else
|
2186 | 0f459d16 | pbrook | iotlb |= IO_MEM_ROM; |
2187 | 0f459d16 | pbrook | } else {
|
2188 | ccbb4d44 | Stuart Brady | /* IO handlers are currently passed a physical address.
|
2189 | 0f459d16 | pbrook | It would be nice to pass an offset from the base address
|
2190 | 0f459d16 | pbrook | of that region. This would avoid having to special case RAM,
|
2191 | 0f459d16 | pbrook | and avoid full address decoding in every device.
|
2192 | 0f459d16 | pbrook | We can't use the high bits of pd for this because
|
2193 | 0f459d16 | pbrook | IO_MEM_ROMD uses these as a ram address. */
|
2194 | 8da3ff18 | pbrook | iotlb = (pd & ~TARGET_PAGE_MASK); |
2195 | 8da3ff18 | pbrook | if (p) {
|
2196 | 8da3ff18 | pbrook | iotlb += p->region_offset; |
2197 | 8da3ff18 | pbrook | } else {
|
2198 | 8da3ff18 | pbrook | iotlb += paddr; |
2199 | 8da3ff18 | pbrook | } |
2200 | 0f459d16 | pbrook | } |
2201 | 0f459d16 | pbrook | |
2202 | 0f459d16 | pbrook | code_address = address; |
2203 | 0f459d16 | pbrook | /* Make accesses to pages with watchpoints go via the
|
2204 | 0f459d16 | pbrook | watchpoint trap routines. */
|
2205 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
2206 | a1d1bb31 | aliguori | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) {
|
2207 | bf298f83 | Jun Koi | /* Avoid trapping reads of pages with a write breakpoint. */
|
2208 | bf298f83 | Jun Koi | if ((prot & PAGE_WRITE) || (wp->flags & BP_MEM_READ)) {
|
2209 | bf298f83 | Jun Koi | iotlb = io_mem_watch + paddr; |
2210 | bf298f83 | Jun Koi | address |= TLB_MMIO; |
2211 | bf298f83 | Jun Koi | break;
|
2212 | bf298f83 | Jun Koi | } |
2213 | 6658ffb8 | pbrook | } |
2214 | 0f459d16 | pbrook | } |
2215 | d79acba4 | balrog | |
2216 | 0f459d16 | pbrook | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
|
2217 | 0f459d16 | pbrook | env->iotlb[mmu_idx][index] = iotlb - vaddr; |
2218 | 0f459d16 | pbrook | te = &env->tlb_table[mmu_idx][index]; |
2219 | 0f459d16 | pbrook | te->addend = addend - vaddr; |
2220 | 0f459d16 | pbrook | if (prot & PAGE_READ) {
|
2221 | 0f459d16 | pbrook | te->addr_read = address; |
2222 | 0f459d16 | pbrook | } else {
|
2223 | 0f459d16 | pbrook | te->addr_read = -1;
|
2224 | 0f459d16 | pbrook | } |
2225 | 5c751e99 | edgar_igl | |
2226 | 0f459d16 | pbrook | if (prot & PAGE_EXEC) {
|
2227 | 0f459d16 | pbrook | te->addr_code = code_address; |
2228 | 0f459d16 | pbrook | } else {
|
2229 | 0f459d16 | pbrook | te->addr_code = -1;
|
2230 | 0f459d16 | pbrook | } |
2231 | 0f459d16 | pbrook | if (prot & PAGE_WRITE) {
|
2232 | 0f459d16 | pbrook | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM ||
|
2233 | 0f459d16 | pbrook | (pd & IO_MEM_ROMD)) { |
2234 | 0f459d16 | pbrook | /* Write access calls the I/O callback. */
|
2235 | 0f459d16 | pbrook | te->addr_write = address | TLB_MMIO; |
2236 | 0f459d16 | pbrook | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
2237 | 0f459d16 | pbrook | !cpu_physical_memory_is_dirty(pd)) { |
2238 | 0f459d16 | pbrook | te->addr_write = address | TLB_NOTDIRTY; |
2239 | 9fa3e853 | bellard | } else {
|
2240 | 0f459d16 | pbrook | te->addr_write = address; |
2241 | 9fa3e853 | bellard | } |
2242 | 0f459d16 | pbrook | } else {
|
2243 | 0f459d16 | pbrook | te->addr_write = -1;
|
2244 | 9fa3e853 | bellard | } |
2245 | 9fa3e853 | bellard | } |
2246 | 9fa3e853 | bellard | |
2247 | 0124311e | bellard | #else
|
2248 | 0124311e | bellard | |
2249 | ee8b7021 | bellard | void tlb_flush(CPUState *env, int flush_global) |
2250 | 0124311e | bellard | { |
2251 | 0124311e | bellard | } |
2252 | 0124311e | bellard | |
2253 | 2e12669a | bellard | void tlb_flush_page(CPUState *env, target_ulong addr)
|
2254 | 0124311e | bellard | { |
2255 | 0124311e | bellard | } |
2256 | 0124311e | bellard | |
2257 | edf8e2af | Mika Westerberg | /*
|
2258 | edf8e2af | Mika Westerberg | * Walks guest process memory "regions" one by one
|
2259 | edf8e2af | Mika Westerberg | * and calls callback function 'fn' for each region.
|
2260 | edf8e2af | Mika Westerberg | */
|
2261 | 5cd2c5b6 | Richard Henderson | |
2262 | 5cd2c5b6 | Richard Henderson | struct walk_memory_regions_data
|
2263 | 5cd2c5b6 | Richard Henderson | { |
2264 | 5cd2c5b6 | Richard Henderson | walk_memory_regions_fn fn; |
2265 | 5cd2c5b6 | Richard Henderson | void *priv;
|
2266 | 5cd2c5b6 | Richard Henderson | unsigned long start; |
2267 | 5cd2c5b6 | Richard Henderson | int prot;
|
2268 | 5cd2c5b6 | Richard Henderson | }; |
2269 | 5cd2c5b6 | Richard Henderson | |
2270 | 5cd2c5b6 | Richard Henderson | static int walk_memory_regions_end(struct walk_memory_regions_data *data, |
2271 | b480d9b7 | Paul Brook | abi_ulong end, int new_prot)
|
2272 | 5cd2c5b6 | Richard Henderson | { |
2273 | 5cd2c5b6 | Richard Henderson | if (data->start != -1ul) { |
2274 | 5cd2c5b6 | Richard Henderson | int rc = data->fn(data->priv, data->start, end, data->prot);
|
2275 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2276 | 5cd2c5b6 | Richard Henderson | return rc;
|
2277 | 5cd2c5b6 | Richard Henderson | } |
2278 | 5cd2c5b6 | Richard Henderson | } |
2279 | 5cd2c5b6 | Richard Henderson | |
2280 | 5cd2c5b6 | Richard Henderson | data->start = (new_prot ? end : -1ul);
|
2281 | 5cd2c5b6 | Richard Henderson | data->prot = new_prot; |
2282 | 5cd2c5b6 | Richard Henderson | |
2283 | 5cd2c5b6 | Richard Henderson | return 0; |
2284 | 5cd2c5b6 | Richard Henderson | } |
2285 | 5cd2c5b6 | Richard Henderson | |
2286 | 5cd2c5b6 | Richard Henderson | static int walk_memory_regions_1(struct walk_memory_regions_data *data, |
2287 | b480d9b7 | Paul Brook | abi_ulong base, int level, void **lp) |
2288 | 5cd2c5b6 | Richard Henderson | { |
2289 | b480d9b7 | Paul Brook | abi_ulong pa; |
2290 | 5cd2c5b6 | Richard Henderson | int i, rc;
|
2291 | 5cd2c5b6 | Richard Henderson | |
2292 | 5cd2c5b6 | Richard Henderson | if (*lp == NULL) { |
2293 | 5cd2c5b6 | Richard Henderson | return walk_memory_regions_end(data, base, 0); |
2294 | 5cd2c5b6 | Richard Henderson | } |
2295 | 5cd2c5b6 | Richard Henderson | |
2296 | 5cd2c5b6 | Richard Henderson | if (level == 0) { |
2297 | 5cd2c5b6 | Richard Henderson | PageDesc *pd = *lp; |
2298 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
2299 | 5cd2c5b6 | Richard Henderson | int prot = pd[i].flags;
|
2300 | 5cd2c5b6 | Richard Henderson | |
2301 | 5cd2c5b6 | Richard Henderson | pa = base | (i << TARGET_PAGE_BITS); |
2302 | 5cd2c5b6 | Richard Henderson | if (prot != data->prot) {
|
2303 | 5cd2c5b6 | Richard Henderson | rc = walk_memory_regions_end(data, pa, prot); |
2304 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2305 | 5cd2c5b6 | Richard Henderson | return rc;
|
2306 | 9fa3e853 | bellard | } |
2307 | 9fa3e853 | bellard | } |
2308 | 5cd2c5b6 | Richard Henderson | } |
2309 | 5cd2c5b6 | Richard Henderson | } else {
|
2310 | 5cd2c5b6 | Richard Henderson | void **pp = *lp;
|
2311 | 7296abac | Paul Brook | for (i = 0; i < L2_SIZE; ++i) { |
2312 | b480d9b7 | Paul Brook | pa = base | ((abi_ulong)i << |
2313 | b480d9b7 | Paul Brook | (TARGET_PAGE_BITS + L2_BITS * level)); |
2314 | 5cd2c5b6 | Richard Henderson | rc = walk_memory_regions_1(data, pa, level - 1, pp + i);
|
2315 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2316 | 5cd2c5b6 | Richard Henderson | return rc;
|
2317 | 5cd2c5b6 | Richard Henderson | } |
2318 | 5cd2c5b6 | Richard Henderson | } |
2319 | 5cd2c5b6 | Richard Henderson | } |
2320 | 5cd2c5b6 | Richard Henderson | |
2321 | 5cd2c5b6 | Richard Henderson | return 0; |
2322 | 5cd2c5b6 | Richard Henderson | } |
2323 | 5cd2c5b6 | Richard Henderson | |
2324 | 5cd2c5b6 | Richard Henderson | int walk_memory_regions(void *priv, walk_memory_regions_fn fn) |
2325 | 5cd2c5b6 | Richard Henderson | { |
2326 | 5cd2c5b6 | Richard Henderson | struct walk_memory_regions_data data;
|
2327 | 5cd2c5b6 | Richard Henderson | unsigned long i; |
2328 | 5cd2c5b6 | Richard Henderson | |
2329 | 5cd2c5b6 | Richard Henderson | data.fn = fn; |
2330 | 5cd2c5b6 | Richard Henderson | data.priv = priv; |
2331 | 5cd2c5b6 | Richard Henderson | data.start = -1ul;
|
2332 | 5cd2c5b6 | Richard Henderson | data.prot = 0;
|
2333 | 5cd2c5b6 | Richard Henderson | |
2334 | 5cd2c5b6 | Richard Henderson | for (i = 0; i < V_L1_SIZE; i++) { |
2335 | b480d9b7 | Paul Brook | int rc = walk_memory_regions_1(&data, (abi_ulong)i << V_L1_SHIFT,
|
2336 | 5cd2c5b6 | Richard Henderson | V_L1_SHIFT / L2_BITS - 1, l1_map + i);
|
2337 | 5cd2c5b6 | Richard Henderson | if (rc != 0) { |
2338 | 5cd2c5b6 | Richard Henderson | return rc;
|
2339 | 9fa3e853 | bellard | } |
2340 | 33417e70 | bellard | } |
2341 | 5cd2c5b6 | Richard Henderson | |
2342 | 5cd2c5b6 | Richard Henderson | return walk_memory_regions_end(&data, 0, 0); |
2343 | edf8e2af | Mika Westerberg | } |
2344 | edf8e2af | Mika Westerberg | |
2345 | b480d9b7 | Paul Brook | static int dump_region(void *priv, abi_ulong start, |
2346 | b480d9b7 | Paul Brook | abi_ulong end, unsigned long prot) |
2347 | edf8e2af | Mika Westerberg | { |
2348 | edf8e2af | Mika Westerberg | FILE *f = (FILE *)priv; |
2349 | edf8e2af | Mika Westerberg | |
2350 | b480d9b7 | Paul Brook | (void) fprintf(f, TARGET_ABI_FMT_lx"-"TARGET_ABI_FMT_lx |
2351 | b480d9b7 | Paul Brook | " "TARGET_ABI_FMT_lx" %c%c%c\n", |
2352 | edf8e2af | Mika Westerberg | start, end, end - start, |
2353 | edf8e2af | Mika Westerberg | ((prot & PAGE_READ) ? 'r' : '-'), |
2354 | edf8e2af | Mika Westerberg | ((prot & PAGE_WRITE) ? 'w' : '-'), |
2355 | edf8e2af | Mika Westerberg | ((prot & PAGE_EXEC) ? 'x' : '-')); |
2356 | edf8e2af | Mika Westerberg | |
2357 | edf8e2af | Mika Westerberg | return (0); |
2358 | edf8e2af | Mika Westerberg | } |
2359 | edf8e2af | Mika Westerberg | |
2360 | edf8e2af | Mika Westerberg | /* dump memory mappings */
|
2361 | edf8e2af | Mika Westerberg | void page_dump(FILE *f)
|
2362 | edf8e2af | Mika Westerberg | { |
2363 | edf8e2af | Mika Westerberg | (void) fprintf(f, "%-8s %-8s %-8s %s\n", |
2364 | edf8e2af | Mika Westerberg | "start", "end", "size", "prot"); |
2365 | edf8e2af | Mika Westerberg | walk_memory_regions(f, dump_region); |
2366 | 33417e70 | bellard | } |
2367 | 33417e70 | bellard | |
2368 | 53a5960a | pbrook | int page_get_flags(target_ulong address)
|
2369 | 33417e70 | bellard | { |
2370 | 9fa3e853 | bellard | PageDesc *p; |
2371 | 9fa3e853 | bellard | |
2372 | 9fa3e853 | bellard | p = page_find(address >> TARGET_PAGE_BITS); |
2373 | 33417e70 | bellard | if (!p)
|
2374 | 9fa3e853 | bellard | return 0; |
2375 | 9fa3e853 | bellard | return p->flags;
|
2376 | 9fa3e853 | bellard | } |
2377 | 9fa3e853 | bellard | |
2378 | 376a7909 | Richard Henderson | /* Modify the flags of a page and invalidate the code if necessary.
|
2379 | 376a7909 | Richard Henderson | The flag PAGE_WRITE_ORG is positioned automatically depending
|
2380 | 376a7909 | Richard Henderson | on PAGE_WRITE. The mmap_lock should already be held. */
|
2381 | 53a5960a | pbrook | void page_set_flags(target_ulong start, target_ulong end, int flags) |
2382 | 9fa3e853 | bellard | { |
2383 | 376a7909 | Richard Henderson | target_ulong addr, len; |
2384 | 376a7909 | Richard Henderson | |
2385 | 376a7909 | Richard Henderson | /* This function should never be called with addresses outside the
|
2386 | 376a7909 | Richard Henderson | guest address space. If this assert fires, it probably indicates
|
2387 | 376a7909 | Richard Henderson | a missing call to h2g_valid. */
|
2388 | b480d9b7 | Paul Brook | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS
|
2389 | b480d9b7 | Paul Brook | assert(end < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS));
|
2390 | 376a7909 | Richard Henderson | #endif
|
2391 | 376a7909 | Richard Henderson | assert(start < end); |
2392 | 9fa3e853 | bellard | |
2393 | 9fa3e853 | bellard | start = start & TARGET_PAGE_MASK; |
2394 | 9fa3e853 | bellard | end = TARGET_PAGE_ALIGN(end); |
2395 | 376a7909 | Richard Henderson | |
2396 | 376a7909 | Richard Henderson | if (flags & PAGE_WRITE) {
|
2397 | 9fa3e853 | bellard | flags |= PAGE_WRITE_ORG; |
2398 | 376a7909 | Richard Henderson | } |
2399 | 376a7909 | Richard Henderson | |
2400 | 376a7909 | Richard Henderson | for (addr = start, len = end - start;
|
2401 | 376a7909 | Richard Henderson | len != 0;
|
2402 | 376a7909 | Richard Henderson | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { |
2403 | 376a7909 | Richard Henderson | PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
2404 | 376a7909 | Richard Henderson | |
2405 | 376a7909 | Richard Henderson | /* If the write protection bit is set, then we invalidate
|
2406 | 376a7909 | Richard Henderson | the code inside. */
|
2407 | 5fafdf24 | ths | if (!(p->flags & PAGE_WRITE) &&
|
2408 | 9fa3e853 | bellard | (flags & PAGE_WRITE) && |
2409 | 9fa3e853 | bellard | p->first_tb) { |
2410 | d720b93d | bellard | tb_invalidate_phys_page(addr, 0, NULL); |
2411 | 9fa3e853 | bellard | } |
2412 | 9fa3e853 | bellard | p->flags = flags; |
2413 | 9fa3e853 | bellard | } |
2414 | 33417e70 | bellard | } |
2415 | 33417e70 | bellard | |
2416 | 3d97b40b | ths | int page_check_range(target_ulong start, target_ulong len, int flags) |
2417 | 3d97b40b | ths | { |
2418 | 3d97b40b | ths | PageDesc *p; |
2419 | 3d97b40b | ths | target_ulong end; |
2420 | 3d97b40b | ths | target_ulong addr; |
2421 | 3d97b40b | ths | |
2422 | 376a7909 | Richard Henderson | /* This function should never be called with addresses outside the
|
2423 | 376a7909 | Richard Henderson | guest address space. If this assert fires, it probably indicates
|
2424 | 376a7909 | Richard Henderson | a missing call to h2g_valid. */
|
2425 | 338e9e6c | Blue Swirl | #if TARGET_ABI_BITS > L1_MAP_ADDR_SPACE_BITS
|
2426 | 338e9e6c | Blue Swirl | assert(start < ((abi_ulong)1 << L1_MAP_ADDR_SPACE_BITS));
|
2427 | 376a7909 | Richard Henderson | #endif
|
2428 | 376a7909 | Richard Henderson | |
2429 | 3e0650a9 | Richard Henderson | if (len == 0) { |
2430 | 3e0650a9 | Richard Henderson | return 0; |
2431 | 3e0650a9 | Richard Henderson | } |
2432 | 376a7909 | Richard Henderson | if (start + len - 1 < start) { |
2433 | 376a7909 | Richard Henderson | /* We've wrapped around. */
|
2434 | 55f280c9 | balrog | return -1; |
2435 | 376a7909 | Richard Henderson | } |
2436 | 55f280c9 | balrog | |
2437 | 3d97b40b | ths | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */
|
2438 | 3d97b40b | ths | start = start & TARGET_PAGE_MASK; |
2439 | 3d97b40b | ths | |
2440 | 376a7909 | Richard Henderson | for (addr = start, len = end - start;
|
2441 | 376a7909 | Richard Henderson | len != 0;
|
2442 | 376a7909 | Richard Henderson | len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { |
2443 | 3d97b40b | ths | p = page_find(addr >> TARGET_PAGE_BITS); |
2444 | 3d97b40b | ths | if( !p )
|
2445 | 3d97b40b | ths | return -1; |
2446 | 3d97b40b | ths | if( !(p->flags & PAGE_VALID) )
|
2447 | 3d97b40b | ths | return -1; |
2448 | 3d97b40b | ths | |
2449 | dae3270c | bellard | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ))
|
2450 | 3d97b40b | ths | return -1; |
2451 | dae3270c | bellard | if (flags & PAGE_WRITE) {
|
2452 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE_ORG))
|
2453 | dae3270c | bellard | return -1; |
2454 | dae3270c | bellard | /* unprotect the page if it was put read-only because it
|
2455 | dae3270c | bellard | contains translated code */
|
2456 | dae3270c | bellard | if (!(p->flags & PAGE_WRITE)) {
|
2457 | dae3270c | bellard | if (!page_unprotect(addr, 0, NULL)) |
2458 | dae3270c | bellard | return -1; |
2459 | dae3270c | bellard | } |
2460 | dae3270c | bellard | return 0; |
2461 | dae3270c | bellard | } |
2462 | 3d97b40b | ths | } |
2463 | 3d97b40b | ths | return 0; |
2464 | 3d97b40b | ths | } |
2465 | 3d97b40b | ths | |
2466 | 9fa3e853 | bellard | /* called from signal handler: invalidate the code and unprotect the
|
2467 | ccbb4d44 | Stuart Brady | page. Return TRUE if the fault was successfully handled. */
|
2468 | 53a5960a | pbrook | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
2469 | 9fa3e853 | bellard | { |
2470 | 45d679d6 | Aurelien Jarno | unsigned int prot; |
2471 | 45d679d6 | Aurelien Jarno | PageDesc *p; |
2472 | 53a5960a | pbrook | target_ulong host_start, host_end, addr; |
2473 | 9fa3e853 | bellard | |
2474 | c8a706fe | pbrook | /* Technically this isn't safe inside a signal handler. However we
|
2475 | c8a706fe | pbrook | know this only ever happens in a synchronous SEGV handler, so in
|
2476 | c8a706fe | pbrook | practice it seems to be ok. */
|
2477 | c8a706fe | pbrook | mmap_lock(); |
2478 | c8a706fe | pbrook | |
2479 | 45d679d6 | Aurelien Jarno | p = page_find(address >> TARGET_PAGE_BITS); |
2480 | 45d679d6 | Aurelien Jarno | if (!p) {
|
2481 | c8a706fe | pbrook | mmap_unlock(); |
2482 | 9fa3e853 | bellard | return 0; |
2483 | c8a706fe | pbrook | } |
2484 | 45d679d6 | Aurelien Jarno | |
2485 | 9fa3e853 | bellard | /* if the page was really writable, then we change its
|
2486 | 9fa3e853 | bellard | protection back to writable */
|
2487 | 45d679d6 | Aurelien Jarno | if ((p->flags & PAGE_WRITE_ORG) && !(p->flags & PAGE_WRITE)) {
|
2488 | 45d679d6 | Aurelien Jarno | host_start = address & qemu_host_page_mask; |
2489 | 45d679d6 | Aurelien Jarno | host_end = host_start + qemu_host_page_size; |
2490 | 45d679d6 | Aurelien Jarno | |
2491 | 45d679d6 | Aurelien Jarno | prot = 0;
|
2492 | 45d679d6 | Aurelien Jarno | for (addr = host_start ; addr < host_end ; addr += TARGET_PAGE_SIZE) {
|
2493 | 45d679d6 | Aurelien Jarno | p = page_find(addr >> TARGET_PAGE_BITS); |
2494 | 45d679d6 | Aurelien Jarno | p->flags |= PAGE_WRITE; |
2495 | 45d679d6 | Aurelien Jarno | prot |= p->flags; |
2496 | 45d679d6 | Aurelien Jarno | |
2497 | 9fa3e853 | bellard | /* and since the content will be modified, we must invalidate
|
2498 | 9fa3e853 | bellard | the corresponding translated code. */
|
2499 | 45d679d6 | Aurelien Jarno | tb_invalidate_phys_page(addr, pc, puc); |
2500 | 9fa3e853 | bellard | #ifdef DEBUG_TB_CHECK
|
2501 | 45d679d6 | Aurelien Jarno | tb_invalidate_check(addr); |
2502 | 9fa3e853 | bellard | #endif
|
2503 | 9fa3e853 | bellard | } |
2504 | 45d679d6 | Aurelien Jarno | mprotect((void *)g2h(host_start), qemu_host_page_size,
|
2505 | 45d679d6 | Aurelien Jarno | prot & PAGE_BITS); |
2506 | 45d679d6 | Aurelien Jarno | |
2507 | 45d679d6 | Aurelien Jarno | mmap_unlock(); |
2508 | 45d679d6 | Aurelien Jarno | return 1; |
2509 | 9fa3e853 | bellard | } |
2510 | c8a706fe | pbrook | mmap_unlock(); |
2511 | 9fa3e853 | bellard | return 0; |
2512 | 9fa3e853 | bellard | } |
2513 | 9fa3e853 | bellard | |
2514 | 6a00d601 | bellard | static inline void tlb_set_dirty(CPUState *env, |
2515 | 6a00d601 | bellard | unsigned long addr, target_ulong vaddr) |
2516 | 1ccde1cb | bellard | { |
2517 | 1ccde1cb | bellard | } |
2518 | 9fa3e853 | bellard | #endif /* defined(CONFIG_USER_ONLY) */ |
2519 | 9fa3e853 | bellard | |
2520 | e2eef170 | pbrook | #if !defined(CONFIG_USER_ONLY)
|
2521 | 8da3ff18 | pbrook | |
2522 | c04b2b78 | Paul Brook | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK)
|
2523 | c04b2b78 | Paul Brook | typedef struct subpage_t { |
2524 | c04b2b78 | Paul Brook | target_phys_addr_t base; |
2525 | f6405247 | Richard Henderson | ram_addr_t sub_io_index[TARGET_PAGE_SIZE]; |
2526 | f6405247 | Richard Henderson | ram_addr_t region_offset[TARGET_PAGE_SIZE]; |
2527 | c04b2b78 | Paul Brook | } subpage_t; |
2528 | c04b2b78 | Paul Brook | |
2529 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
2530 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset); |
2531 | f6405247 | Richard Henderson | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys,
|
2532 | f6405247 | Richard Henderson | ram_addr_t orig_memory, |
2533 | f6405247 | Richard Henderson | ram_addr_t region_offset); |
2534 | db7b5426 | blueswir1 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \
|
2535 | db7b5426 | blueswir1 | need_subpage) \ |
2536 | db7b5426 | blueswir1 | do { \
|
2537 | db7b5426 | blueswir1 | if (addr > start_addr) \
|
2538 | db7b5426 | blueswir1 | start_addr2 = 0; \
|
2539 | db7b5426 | blueswir1 | else { \
|
2540 | db7b5426 | blueswir1 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
2541 | db7b5426 | blueswir1 | if (start_addr2 > 0) \ |
2542 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2543 | db7b5426 | blueswir1 | } \ |
2544 | db7b5426 | blueswir1 | \ |
2545 | 49e9fba2 | blueswir1 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \
|
2546 | db7b5426 | blueswir1 | end_addr2 = TARGET_PAGE_SIZE - 1; \
|
2547 | db7b5426 | blueswir1 | else { \
|
2548 | db7b5426 | blueswir1 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \
|
2549 | db7b5426 | blueswir1 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
2550 | db7b5426 | blueswir1 | need_subpage = 1; \
|
2551 | db7b5426 | blueswir1 | } \ |
2552 | db7b5426 | blueswir1 | } while (0) |
2553 | db7b5426 | blueswir1 | |
2554 | 8f2498f9 | Michael S. Tsirkin | /* register physical memory.
|
2555 | 8f2498f9 | Michael S. Tsirkin | For RAM, 'size' must be a multiple of the target page size.
|
2556 | 8f2498f9 | Michael S. Tsirkin | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an
|
2557 | 8da3ff18 | pbrook | io memory page. The address used when calling the IO function is
|
2558 | 8da3ff18 | pbrook | the offset from the start of the region, plus region_offset. Both
|
2559 | ccbb4d44 | Stuart Brady | start_addr and region_offset are rounded down to a page boundary
|
2560 | 8da3ff18 | pbrook | before calculating this offset. This should not be a problem unless
|
2561 | 8da3ff18 | pbrook | the low bits of start_addr and region_offset differ. */
|
2562 | c227f099 | Anthony Liguori | void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
|
2563 | c227f099 | Anthony Liguori | ram_addr_t size, |
2564 | c227f099 | Anthony Liguori | ram_addr_t phys_offset, |
2565 | c227f099 | Anthony Liguori | ram_addr_t region_offset) |
2566 | 33417e70 | bellard | { |
2567 | c227f099 | Anthony Liguori | target_phys_addr_t addr, end_addr; |
2568 | 92e873b9 | bellard | PhysPageDesc *p; |
2569 | 9d42037b | bellard | CPUState *env; |
2570 | c227f099 | Anthony Liguori | ram_addr_t orig_size = size; |
2571 | f6405247 | Richard Henderson | subpage_t *subpage; |
2572 | 33417e70 | bellard | |
2573 | f6f3fbca | Michael S. Tsirkin | cpu_notify_set_memory(start_addr, size, phys_offset); |
2574 | f6f3fbca | Michael S. Tsirkin | |
2575 | 67c4d23c | pbrook | if (phys_offset == IO_MEM_UNASSIGNED) {
|
2576 | 67c4d23c | pbrook | region_offset = start_addr; |
2577 | 67c4d23c | pbrook | } |
2578 | 8da3ff18 | pbrook | region_offset &= TARGET_PAGE_MASK; |
2579 | 5fd386f6 | bellard | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
|
2580 | c227f099 | Anthony Liguori | end_addr = start_addr + (target_phys_addr_t)size; |
2581 | 49e9fba2 | blueswir1 | for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) {
|
2582 | db7b5426 | blueswir1 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2583 | db7b5426 | blueswir1 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) {
|
2584 | c227f099 | Anthony Liguori | ram_addr_t orig_memory = p->phys_offset; |
2585 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2586 | db7b5426 | blueswir1 | int need_subpage = 0; |
2587 | db7b5426 | blueswir1 | |
2588 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
2589 | db7b5426 | blueswir1 | need_subpage); |
2590 | f6405247 | Richard Henderson | if (need_subpage) {
|
2591 | db7b5426 | blueswir1 | if (!(orig_memory & IO_MEM_SUBPAGE)) {
|
2592 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2593 | 8da3ff18 | pbrook | &p->phys_offset, orig_memory, |
2594 | 8da3ff18 | pbrook | p->region_offset); |
2595 | db7b5426 | blueswir1 | } else {
|
2596 | db7b5426 | blueswir1 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
2597 | db7b5426 | blueswir1 | >> IO_MEM_SHIFT]; |
2598 | db7b5426 | blueswir1 | } |
2599 | 8da3ff18 | pbrook | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
2600 | 8da3ff18 | pbrook | region_offset); |
2601 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2602 | db7b5426 | blueswir1 | } else {
|
2603 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2604 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2605 | db7b5426 | blueswir1 | (phys_offset & IO_MEM_ROMD)) |
2606 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2607 | db7b5426 | blueswir1 | } |
2608 | db7b5426 | blueswir1 | } else {
|
2609 | db7b5426 | blueswir1 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
|
2610 | db7b5426 | blueswir1 | p->phys_offset = phys_offset; |
2611 | 8da3ff18 | pbrook | p->region_offset = region_offset; |
2612 | db7b5426 | blueswir1 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
|
2613 | 8da3ff18 | pbrook | (phys_offset & IO_MEM_ROMD)) { |
2614 | db7b5426 | blueswir1 | phys_offset += TARGET_PAGE_SIZE; |
2615 | 0e8f0967 | pbrook | } else {
|
2616 | c227f099 | Anthony Liguori | target_phys_addr_t start_addr2, end_addr2; |
2617 | db7b5426 | blueswir1 | int need_subpage = 0; |
2618 | db7b5426 | blueswir1 | |
2619 | db7b5426 | blueswir1 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
2620 | db7b5426 | blueswir1 | end_addr2, need_subpage); |
2621 | db7b5426 | blueswir1 | |
2622 | f6405247 | Richard Henderson | if (need_subpage) {
|
2623 | db7b5426 | blueswir1 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
2624 | 8da3ff18 | pbrook | &p->phys_offset, IO_MEM_UNASSIGNED, |
2625 | 67c4d23c | pbrook | addr & TARGET_PAGE_MASK); |
2626 | db7b5426 | blueswir1 | subpage_register(subpage, start_addr2, end_addr2, |
2627 | 8da3ff18 | pbrook | phys_offset, region_offset); |
2628 | 8da3ff18 | pbrook | p->region_offset = 0;
|
2629 | db7b5426 | blueswir1 | } |
2630 | db7b5426 | blueswir1 | } |
2631 | db7b5426 | blueswir1 | } |
2632 | 8da3ff18 | pbrook | region_offset += TARGET_PAGE_SIZE; |
2633 | 33417e70 | bellard | } |
2634 | 3b46e624 | ths | |
2635 | 9d42037b | bellard | /* since each CPU stores ram addresses in its TLB cache, we must
|
2636 | 9d42037b | bellard | reset the modified entries */
|
2637 | 9d42037b | bellard | /* XXX: slow ! */
|
2638 | 9d42037b | bellard | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
2639 | 9d42037b | bellard | tlb_flush(env, 1);
|
2640 | 9d42037b | bellard | } |
2641 | 33417e70 | bellard | } |
2642 | 33417e70 | bellard | |
2643 | ba863458 | bellard | /* XXX: temporary until new memory mapping API */
|
2644 | c227f099 | Anthony Liguori | ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
2645 | ba863458 | bellard | { |
2646 | ba863458 | bellard | PhysPageDesc *p; |
2647 | ba863458 | bellard | |
2648 | ba863458 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
2649 | ba863458 | bellard | if (!p)
|
2650 | ba863458 | bellard | return IO_MEM_UNASSIGNED;
|
2651 | ba863458 | bellard | return p->phys_offset;
|
2652 | ba863458 | bellard | } |
2653 | ba863458 | bellard | |
2654 | c227f099 | Anthony Liguori | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2655 | f65ed4c1 | aliguori | { |
2656 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2657 | f65ed4c1 | aliguori | kvm_coalesce_mmio_region(addr, size); |
2658 | f65ed4c1 | aliguori | } |
2659 | f65ed4c1 | aliguori | |
2660 | c227f099 | Anthony Liguori | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size)
|
2661 | f65ed4c1 | aliguori | { |
2662 | f65ed4c1 | aliguori | if (kvm_enabled())
|
2663 | f65ed4c1 | aliguori | kvm_uncoalesce_mmio_region(addr, size); |
2664 | f65ed4c1 | aliguori | } |
2665 | f65ed4c1 | aliguori | |
2666 | 62a2744c | Sheng Yang | void qemu_flush_coalesced_mmio_buffer(void) |
2667 | 62a2744c | Sheng Yang | { |
2668 | 62a2744c | Sheng Yang | if (kvm_enabled())
|
2669 | 62a2744c | Sheng Yang | kvm_flush_coalesced_mmio_buffer(); |
2670 | 62a2744c | Sheng Yang | } |
2671 | 62a2744c | Sheng Yang | |
2672 | c902760f | Marcelo Tosatti | #if defined(__linux__) && !defined(TARGET_S390X)
|
2673 | c902760f | Marcelo Tosatti | |
2674 | c902760f | Marcelo Tosatti | #include <sys/vfs.h> |
2675 | c902760f | Marcelo Tosatti | |
2676 | c902760f | Marcelo Tosatti | #define HUGETLBFS_MAGIC 0x958458f6 |
2677 | c902760f | Marcelo Tosatti | |
2678 | c902760f | Marcelo Tosatti | static long gethugepagesize(const char *path) |
2679 | c902760f | Marcelo Tosatti | { |
2680 | c902760f | Marcelo Tosatti | struct statfs fs;
|
2681 | c902760f | Marcelo Tosatti | int ret;
|
2682 | c902760f | Marcelo Tosatti | |
2683 | c902760f | Marcelo Tosatti | do {
|
2684 | 9742bf26 | Yoshiaki Tamura | ret = statfs(path, &fs); |
2685 | c902760f | Marcelo Tosatti | } while (ret != 0 && errno == EINTR); |
2686 | c902760f | Marcelo Tosatti | |
2687 | c902760f | Marcelo Tosatti | if (ret != 0) { |
2688 | 9742bf26 | Yoshiaki Tamura | perror(path); |
2689 | 9742bf26 | Yoshiaki Tamura | return 0; |
2690 | c902760f | Marcelo Tosatti | } |
2691 | c902760f | Marcelo Tosatti | |
2692 | c902760f | Marcelo Tosatti | if (fs.f_type != HUGETLBFS_MAGIC)
|
2693 | 9742bf26 | Yoshiaki Tamura | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path);
|
2694 | c902760f | Marcelo Tosatti | |
2695 | c902760f | Marcelo Tosatti | return fs.f_bsize;
|
2696 | c902760f | Marcelo Tosatti | } |
2697 | c902760f | Marcelo Tosatti | |
2698 | 04b16653 | Alex Williamson | static void *file_ram_alloc(RAMBlock *block, |
2699 | 04b16653 | Alex Williamson | ram_addr_t memory, |
2700 | 04b16653 | Alex Williamson | const char *path) |
2701 | c902760f | Marcelo Tosatti | { |
2702 | c902760f | Marcelo Tosatti | char *filename;
|
2703 | c902760f | Marcelo Tosatti | void *area;
|
2704 | c902760f | Marcelo Tosatti | int fd;
|
2705 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
2706 | c902760f | Marcelo Tosatti | int flags;
|
2707 | c902760f | Marcelo Tosatti | #endif
|
2708 | c902760f | Marcelo Tosatti | unsigned long hpagesize; |
2709 | c902760f | Marcelo Tosatti | |
2710 | c902760f | Marcelo Tosatti | hpagesize = gethugepagesize(path); |
2711 | c902760f | Marcelo Tosatti | if (!hpagesize) {
|
2712 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2713 | c902760f | Marcelo Tosatti | } |
2714 | c902760f | Marcelo Tosatti | |
2715 | c902760f | Marcelo Tosatti | if (memory < hpagesize) {
|
2716 | c902760f | Marcelo Tosatti | return NULL; |
2717 | c902760f | Marcelo Tosatti | } |
2718 | c902760f | Marcelo Tosatti | |
2719 | c902760f | Marcelo Tosatti | if (kvm_enabled() && !kvm_has_sync_mmu()) {
|
2720 | c902760f | Marcelo Tosatti | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n");
|
2721 | c902760f | Marcelo Tosatti | return NULL; |
2722 | c902760f | Marcelo Tosatti | } |
2723 | c902760f | Marcelo Tosatti | |
2724 | c902760f | Marcelo Tosatti | if (asprintf(&filename, "%s/qemu_back_mem.XXXXXX", path) == -1) { |
2725 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2726 | c902760f | Marcelo Tosatti | } |
2727 | c902760f | Marcelo Tosatti | |
2728 | c902760f | Marcelo Tosatti | fd = mkstemp(filename); |
2729 | c902760f | Marcelo Tosatti | if (fd < 0) { |
2730 | 9742bf26 | Yoshiaki Tamura | perror("unable to create backing store for hugepages");
|
2731 | 9742bf26 | Yoshiaki Tamura | free(filename); |
2732 | 9742bf26 | Yoshiaki Tamura | return NULL; |
2733 | c902760f | Marcelo Tosatti | } |
2734 | c902760f | Marcelo Tosatti | unlink(filename); |
2735 | c902760f | Marcelo Tosatti | free(filename); |
2736 | c902760f | Marcelo Tosatti | |
2737 | c902760f | Marcelo Tosatti | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
2738 | c902760f | Marcelo Tosatti | |
2739 | c902760f | Marcelo Tosatti | /*
|
2740 | c902760f | Marcelo Tosatti | * ftruncate is not supported by hugetlbfs in older
|
2741 | c902760f | Marcelo Tosatti | * hosts, so don't bother bailing out on errors.
|
2742 | c902760f | Marcelo Tosatti | * If anything goes wrong with it under other filesystems,
|
2743 | c902760f | Marcelo Tosatti | * mmap will fail.
|
2744 | c902760f | Marcelo Tosatti | */
|
2745 | c902760f | Marcelo Tosatti | if (ftruncate(fd, memory))
|
2746 | 9742bf26 | Yoshiaki Tamura | perror("ftruncate");
|
2747 | c902760f | Marcelo Tosatti | |
2748 | c902760f | Marcelo Tosatti | #ifdef MAP_POPULATE
|
2749 | c902760f | Marcelo Tosatti | /* NB: MAP_POPULATE won't exhaustively alloc all phys pages in the case
|
2750 | c902760f | Marcelo Tosatti | * MAP_PRIVATE is requested. For mem_prealloc we mmap as MAP_SHARED
|
2751 | c902760f | Marcelo Tosatti | * to sidestep this quirk.
|
2752 | c902760f | Marcelo Tosatti | */
|
2753 | c902760f | Marcelo Tosatti | flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE; |
2754 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0); |
2755 | c902760f | Marcelo Tosatti | #else
|
2756 | c902760f | Marcelo Tosatti | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
2757 | c902760f | Marcelo Tosatti | #endif
|
2758 | c902760f | Marcelo Tosatti | if (area == MAP_FAILED) {
|
2759 | 9742bf26 | Yoshiaki Tamura | perror("file_ram_alloc: can't mmap RAM pages");
|
2760 | 9742bf26 | Yoshiaki Tamura | close(fd); |
2761 | 9742bf26 | Yoshiaki Tamura | return (NULL); |
2762 | c902760f | Marcelo Tosatti | } |
2763 | 04b16653 | Alex Williamson | block->fd = fd; |
2764 | c902760f | Marcelo Tosatti | return area;
|
2765 | c902760f | Marcelo Tosatti | } |
2766 | c902760f | Marcelo Tosatti | #endif
|
2767 | c902760f | Marcelo Tosatti | |
2768 | d17b5288 | Alex Williamson | static ram_addr_t find_ram_offset(ram_addr_t size)
|
2769 | d17b5288 | Alex Williamson | { |
2770 | 04b16653 | Alex Williamson | RAMBlock *block, *next_block; |
2771 | 09d7ae90 | Blue Swirl | ram_addr_t offset = 0, mingap = ULONG_MAX;
|
2772 | 04b16653 | Alex Williamson | |
2773 | 04b16653 | Alex Williamson | if (QLIST_EMPTY(&ram_list.blocks))
|
2774 | 04b16653 | Alex Williamson | return 0; |
2775 | 04b16653 | Alex Williamson | |
2776 | 04b16653 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2777 | 04b16653 | Alex Williamson | ram_addr_t end, next = ULONG_MAX; |
2778 | 04b16653 | Alex Williamson | |
2779 | 04b16653 | Alex Williamson | end = block->offset + block->length; |
2780 | 04b16653 | Alex Williamson | |
2781 | 04b16653 | Alex Williamson | QLIST_FOREACH(next_block, &ram_list.blocks, next) { |
2782 | 04b16653 | Alex Williamson | if (next_block->offset >= end) {
|
2783 | 04b16653 | Alex Williamson | next = MIN(next, next_block->offset); |
2784 | 04b16653 | Alex Williamson | } |
2785 | 04b16653 | Alex Williamson | } |
2786 | 04b16653 | Alex Williamson | if (next - end >= size && next - end < mingap) {
|
2787 | 04b16653 | Alex Williamson | offset = end; |
2788 | 04b16653 | Alex Williamson | mingap = next - end; |
2789 | 04b16653 | Alex Williamson | } |
2790 | 04b16653 | Alex Williamson | } |
2791 | 04b16653 | Alex Williamson | return offset;
|
2792 | 04b16653 | Alex Williamson | } |
2793 | 04b16653 | Alex Williamson | |
2794 | 04b16653 | Alex Williamson | static ram_addr_t last_ram_offset(void) |
2795 | 04b16653 | Alex Williamson | { |
2796 | d17b5288 | Alex Williamson | RAMBlock *block; |
2797 | d17b5288 | Alex Williamson | ram_addr_t last = 0;
|
2798 | d17b5288 | Alex Williamson | |
2799 | d17b5288 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) |
2800 | d17b5288 | Alex Williamson | last = MAX(last, block->offset + block->length); |
2801 | d17b5288 | Alex Williamson | |
2802 | d17b5288 | Alex Williamson | return last;
|
2803 | d17b5288 | Alex Williamson | } |
2804 | d17b5288 | Alex Williamson | |
2805 | 84b89d78 | Cam Macdonell | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
2806 | 6977dfe6 | Yoshiaki Tamura | ram_addr_t size, void *host)
|
2807 | 84b89d78 | Cam Macdonell | { |
2808 | 84b89d78 | Cam Macdonell | RAMBlock *new_block, *block; |
2809 | 84b89d78 | Cam Macdonell | |
2810 | 84b89d78 | Cam Macdonell | size = TARGET_PAGE_ALIGN(size); |
2811 | 84b89d78 | Cam Macdonell | new_block = qemu_mallocz(sizeof(*new_block));
|
2812 | 84b89d78 | Cam Macdonell | |
2813 | 84b89d78 | Cam Macdonell | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
2814 | 84b89d78 | Cam Macdonell | char *id = dev->parent_bus->info->get_dev_path(dev);
|
2815 | 84b89d78 | Cam Macdonell | if (id) {
|
2816 | 84b89d78 | Cam Macdonell | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
2817 | 84b89d78 | Cam Macdonell | qemu_free(id); |
2818 | 84b89d78 | Cam Macdonell | } |
2819 | 84b89d78 | Cam Macdonell | } |
2820 | 84b89d78 | Cam Macdonell | pstrcat(new_block->idstr, sizeof(new_block->idstr), name);
|
2821 | 84b89d78 | Cam Macdonell | |
2822 | 84b89d78 | Cam Macdonell | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2823 | 84b89d78 | Cam Macdonell | if (!strcmp(block->idstr, new_block->idstr)) {
|
2824 | 84b89d78 | Cam Macdonell | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n",
|
2825 | 84b89d78 | Cam Macdonell | new_block->idstr); |
2826 | 84b89d78 | Cam Macdonell | abort(); |
2827 | 84b89d78 | Cam Macdonell | } |
2828 | 84b89d78 | Cam Macdonell | } |
2829 | 84b89d78 | Cam Macdonell | |
2830 | 6977dfe6 | Yoshiaki Tamura | if (host) {
|
2831 | 6977dfe6 | Yoshiaki Tamura | new_block->host = host; |
2832 | 6977dfe6 | Yoshiaki Tamura | } else {
|
2833 | 6977dfe6 | Yoshiaki Tamura | if (mem_path) {
|
2834 | c902760f | Marcelo Tosatti | #if defined (__linux__) && !defined(TARGET_S390X)
|
2835 | 6977dfe6 | Yoshiaki Tamura | new_block->host = file_ram_alloc(new_block, size, mem_path); |
2836 | 6977dfe6 | Yoshiaki Tamura | if (!new_block->host) {
|
2837 | 6977dfe6 | Yoshiaki Tamura | new_block->host = qemu_vmalloc(size); |
2838 | e78815a5 | Andreas Fรคrber | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
2839 | 6977dfe6 | Yoshiaki Tamura | } |
2840 | c902760f | Marcelo Tosatti | #else
|
2841 | 6977dfe6 | Yoshiaki Tamura | fprintf(stderr, "-mem-path option unsupported\n");
|
2842 | 6977dfe6 | Yoshiaki Tamura | exit(1);
|
2843 | c902760f | Marcelo Tosatti | #endif
|
2844 | 6977dfe6 | Yoshiaki Tamura | } else {
|
2845 | 6b02494d | Alexander Graf | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
2846 | 6977dfe6 | Yoshiaki Tamura | /* XXX S390 KVM requires the topmost vma of the RAM to be < 256GB */
|
2847 | 6977dfe6 | Yoshiaki Tamura | new_block->host = mmap((void*)0x1000000, size, |
2848 | 6977dfe6 | Yoshiaki Tamura | PROT_EXEC|PROT_READ|PROT_WRITE, |
2849 | 6977dfe6 | Yoshiaki Tamura | MAP_SHARED | MAP_ANONYMOUS, -1, 0); |
2850 | 6b02494d | Alexander Graf | #else
|
2851 | 6977dfe6 | Yoshiaki Tamura | new_block->host = qemu_vmalloc(size); |
2852 | 6b02494d | Alexander Graf | #endif
|
2853 | e78815a5 | Andreas Fรคrber | qemu_madvise(new_block->host, size, QEMU_MADV_MERGEABLE); |
2854 | 6977dfe6 | Yoshiaki Tamura | } |
2855 | c902760f | Marcelo Tosatti | } |
2856 | 6977dfe6 | Yoshiaki Tamura | |
2857 | d17b5288 | Alex Williamson | new_block->offset = find_ram_offset(size); |
2858 | 94a6b54f | pbrook | new_block->length = size; |
2859 | 94a6b54f | pbrook | |
2860 | f471a17e | Alex Williamson | QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next); |
2861 | 94a6b54f | pbrook | |
2862 | f471a17e | Alex Williamson | ram_list.phys_dirty = qemu_realloc(ram_list.phys_dirty, |
2863 | 04b16653 | Alex Williamson | last_ram_offset() >> TARGET_PAGE_BITS); |
2864 | d17b5288 | Alex Williamson | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
2865 | 94a6b54f | pbrook | 0xff, size >> TARGET_PAGE_BITS);
|
2866 | 94a6b54f | pbrook | |
2867 | 6f0437e8 | Jan Kiszka | if (kvm_enabled())
|
2868 | 6f0437e8 | Jan Kiszka | kvm_setup_guest_memory(new_block->host, size); |
2869 | 6f0437e8 | Jan Kiszka | |
2870 | 94a6b54f | pbrook | return new_block->offset;
|
2871 | 94a6b54f | pbrook | } |
2872 | e9a1ab19 | bellard | |
2873 | 6977dfe6 | Yoshiaki Tamura | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) |
2874 | 6977dfe6 | Yoshiaki Tamura | { |
2875 | 6977dfe6 | Yoshiaki Tamura | return qemu_ram_alloc_from_ptr(dev, name, size, NULL); |
2876 | 6977dfe6 | Yoshiaki Tamura | } |
2877 | 6977dfe6 | Yoshiaki Tamura | |
2878 | c227f099 | Anthony Liguori | void qemu_ram_free(ram_addr_t addr)
|
2879 | e9a1ab19 | bellard | { |
2880 | 04b16653 | Alex Williamson | RAMBlock *block; |
2881 | 04b16653 | Alex Williamson | |
2882 | 04b16653 | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2883 | 04b16653 | Alex Williamson | if (addr == block->offset) {
|
2884 | 04b16653 | Alex Williamson | QLIST_REMOVE(block, next); |
2885 | 04b16653 | Alex Williamson | if (mem_path) {
|
2886 | 04b16653 | Alex Williamson | #if defined (__linux__) && !defined(TARGET_S390X)
|
2887 | 04b16653 | Alex Williamson | if (block->fd) {
|
2888 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
2889 | 04b16653 | Alex Williamson | close(block->fd); |
2890 | 04b16653 | Alex Williamson | } else {
|
2891 | 04b16653 | Alex Williamson | qemu_vfree(block->host); |
2892 | 04b16653 | Alex Williamson | } |
2893 | 04b16653 | Alex Williamson | #endif
|
2894 | 04b16653 | Alex Williamson | } else {
|
2895 | 04b16653 | Alex Williamson | #if defined(TARGET_S390X) && defined(CONFIG_KVM)
|
2896 | 04b16653 | Alex Williamson | munmap(block->host, block->length); |
2897 | 04b16653 | Alex Williamson | #else
|
2898 | 04b16653 | Alex Williamson | qemu_vfree(block->host); |
2899 | 04b16653 | Alex Williamson | #endif
|
2900 | 04b16653 | Alex Williamson | } |
2901 | 04b16653 | Alex Williamson | qemu_free(block); |
2902 | 04b16653 | Alex Williamson | return;
|
2903 | 04b16653 | Alex Williamson | } |
2904 | 04b16653 | Alex Williamson | } |
2905 | 04b16653 | Alex Williamson | |
2906 | e9a1ab19 | bellard | } |
2907 | e9a1ab19 | bellard | |
2908 | dc828ca1 | pbrook | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
2909 | 5579c7f3 | pbrook | With the exception of the softmmu code in this file, this should
|
2910 | 5579c7f3 | pbrook | only be used for local memory (e.g. video ram) that the device owns,
|
2911 | 5579c7f3 | pbrook | and knows it isn't going to access beyond the end of the block.
|
2912 | 5579c7f3 | pbrook | |
2913 | 5579c7f3 | pbrook | It should not be used for general purpose DMA.
|
2914 | 5579c7f3 | pbrook | Use cpu_physical_memory_map/cpu_physical_memory_rw instead.
|
2915 | 5579c7f3 | pbrook | */
|
2916 | c227f099 | Anthony Liguori | void *qemu_get_ram_ptr(ram_addr_t addr)
|
2917 | dc828ca1 | pbrook | { |
2918 | 94a6b54f | pbrook | RAMBlock *block; |
2919 | 94a6b54f | pbrook | |
2920 | f471a17e | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2921 | f471a17e | Alex Williamson | if (addr - block->offset < block->length) {
|
2922 | f471a17e | Alex Williamson | QLIST_REMOVE(block, next); |
2923 | f471a17e | Alex Williamson | QLIST_INSERT_HEAD(&ram_list.blocks, block, next); |
2924 | f471a17e | Alex Williamson | return block->host + (addr - block->offset);
|
2925 | f471a17e | Alex Williamson | } |
2926 | 94a6b54f | pbrook | } |
2927 | f471a17e | Alex Williamson | |
2928 | f471a17e | Alex Williamson | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
2929 | f471a17e | Alex Williamson | abort(); |
2930 | f471a17e | Alex Williamson | |
2931 | f471a17e | Alex Williamson | return NULL; |
2932 | dc828ca1 | pbrook | } |
2933 | dc828ca1 | pbrook | |
2934 | b2e0a138 | Michael S. Tsirkin | /* Return a host pointer to ram allocated with qemu_ram_alloc.
|
2935 | b2e0a138 | Michael S. Tsirkin | * Same as qemu_get_ram_ptr but avoid reordering ramblocks.
|
2936 | b2e0a138 | Michael S. Tsirkin | */
|
2937 | b2e0a138 | Michael S. Tsirkin | void *qemu_safe_ram_ptr(ram_addr_t addr)
|
2938 | b2e0a138 | Michael S. Tsirkin | { |
2939 | b2e0a138 | Michael S. Tsirkin | RAMBlock *block; |
2940 | b2e0a138 | Michael S. Tsirkin | |
2941 | b2e0a138 | Michael S. Tsirkin | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2942 | b2e0a138 | Michael S. Tsirkin | if (addr - block->offset < block->length) {
|
2943 | b2e0a138 | Michael S. Tsirkin | return block->host + (addr - block->offset);
|
2944 | b2e0a138 | Michael S. Tsirkin | } |
2945 | b2e0a138 | Michael S. Tsirkin | } |
2946 | b2e0a138 | Michael S. Tsirkin | |
2947 | b2e0a138 | Michael S. Tsirkin | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
2948 | b2e0a138 | Michael S. Tsirkin | abort(); |
2949 | b2e0a138 | Michael S. Tsirkin | |
2950 | b2e0a138 | Michael S. Tsirkin | return NULL; |
2951 | b2e0a138 | Michael S. Tsirkin | } |
2952 | b2e0a138 | Michael S. Tsirkin | |
2953 | e890261f | Marcelo Tosatti | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
2954 | 5579c7f3 | pbrook | { |
2955 | 94a6b54f | pbrook | RAMBlock *block; |
2956 | 94a6b54f | pbrook | uint8_t *host = ptr; |
2957 | 94a6b54f | pbrook | |
2958 | f471a17e | Alex Williamson | QLIST_FOREACH(block, &ram_list.blocks, next) { |
2959 | f471a17e | Alex Williamson | if (host - block->host < block->length) {
|
2960 | e890261f | Marcelo Tosatti | *ram_addr = block->offset + (host - block->host); |
2961 | e890261f | Marcelo Tosatti | return 0; |
2962 | f471a17e | Alex Williamson | } |
2963 | 94a6b54f | pbrook | } |
2964 | e890261f | Marcelo Tosatti | return -1; |
2965 | e890261f | Marcelo Tosatti | } |
2966 | f471a17e | Alex Williamson | |
2967 | e890261f | Marcelo Tosatti | /* Some of the softmmu routines need to translate from a host pointer
|
2968 | e890261f | Marcelo Tosatti | (typically a TLB entry) back to a ram offset. */
|
2969 | e890261f | Marcelo Tosatti | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr)
|
2970 | e890261f | Marcelo Tosatti | { |
2971 | e890261f | Marcelo Tosatti | ram_addr_t ram_addr; |
2972 | f471a17e | Alex Williamson | |
2973 | e890261f | Marcelo Tosatti | if (qemu_ram_addr_from_host(ptr, &ram_addr)) {
|
2974 | e890261f | Marcelo Tosatti | fprintf(stderr, "Bad ram pointer %p\n", ptr);
|
2975 | e890261f | Marcelo Tosatti | abort(); |
2976 | e890261f | Marcelo Tosatti | } |
2977 | e890261f | Marcelo Tosatti | return ram_addr;
|
2978 | 5579c7f3 | pbrook | } |
2979 | 5579c7f3 | pbrook | |
2980 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
2981 | 33417e70 | bellard | { |
2982 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
2983 | ab3d1727 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
2984 | 67d3b957 | pbrook | #endif
|
2985 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2986 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 1); |
2987 | e18231a3 | blueswir1 | #endif
|
2988 | e18231a3 | blueswir1 | return 0; |
2989 | e18231a3 | blueswir1 | } |
2990 | e18231a3 | blueswir1 | |
2991 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readw(void *opaque, target_phys_addr_t addr) |
2992 | e18231a3 | blueswir1 | { |
2993 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
2994 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
2995 | e18231a3 | blueswir1 | #endif
|
2996 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
2997 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 2); |
2998 | e18231a3 | blueswir1 | #endif
|
2999 | e18231a3 | blueswir1 | return 0; |
3000 | e18231a3 | blueswir1 | } |
3001 | e18231a3 | blueswir1 | |
3002 | c227f099 | Anthony Liguori | static uint32_t unassigned_mem_readl(void *opaque, target_phys_addr_t addr) |
3003 | e18231a3 | blueswir1 | { |
3004 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3005 | e18231a3 | blueswir1 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
3006 | e18231a3 | blueswir1 | #endif
|
3007 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3008 | e18231a3 | blueswir1 | do_unassigned_access(addr, 0, 0, 0, 4); |
3009 | b4f0a316 | blueswir1 | #endif
|
3010 | 33417e70 | bellard | return 0; |
3011 | 33417e70 | bellard | } |
3012 | 33417e70 | bellard | |
3013 | c227f099 | Anthony Liguori | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
3014 | 33417e70 | bellard | { |
3015 | 67d3b957 | pbrook | #ifdef DEBUG_UNASSIGNED
|
3016 | ab3d1727 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3017 | 67d3b957 | pbrook | #endif
|
3018 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3019 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 1); |
3020 | e18231a3 | blueswir1 | #endif
|
3021 | e18231a3 | blueswir1 | } |
3022 | e18231a3 | blueswir1 | |
3023 | c227f099 | Anthony Liguori | static void unassigned_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
3024 | e18231a3 | blueswir1 | { |
3025 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3026 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3027 | e18231a3 | blueswir1 | #endif
|
3028 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3029 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 2); |
3030 | e18231a3 | blueswir1 | #endif
|
3031 | e18231a3 | blueswir1 | } |
3032 | e18231a3 | blueswir1 | |
3033 | c227f099 | Anthony Liguori | static void unassigned_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
3034 | e18231a3 | blueswir1 | { |
3035 | e18231a3 | blueswir1 | #ifdef DEBUG_UNASSIGNED
|
3036 | e18231a3 | blueswir1 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
3037 | e18231a3 | blueswir1 | #endif
|
3038 | faed1c2a | Edgar E. Iglesias | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
|
3039 | e18231a3 | blueswir1 | do_unassigned_access(addr, 1, 0, 0, 4); |
3040 | b4f0a316 | blueswir1 | #endif
|
3041 | 33417e70 | bellard | } |
3042 | 33417e70 | bellard | |
3043 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
3044 | 33417e70 | bellard | unassigned_mem_readb, |
3045 | e18231a3 | blueswir1 | unassigned_mem_readw, |
3046 | e18231a3 | blueswir1 | unassigned_mem_readl, |
3047 | 33417e70 | bellard | }; |
3048 | 33417e70 | bellard | |
3049 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
3050 | 33417e70 | bellard | unassigned_mem_writeb, |
3051 | e18231a3 | blueswir1 | unassigned_mem_writew, |
3052 | e18231a3 | blueswir1 | unassigned_mem_writel, |
3053 | 33417e70 | bellard | }; |
3054 | 33417e70 | bellard | |
3055 | c227f099 | Anthony Liguori | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t ram_addr, |
3056 | 0f459d16 | pbrook | uint32_t val) |
3057 | 9fa3e853 | bellard | { |
3058 | 3a7d929e | bellard | int dirty_flags;
|
3059 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3060 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3061 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3062 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 1);
|
3063 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3064 | 9fa3e853 | bellard | #endif
|
3065 | 3a7d929e | bellard | } |
3066 | 5579c7f3 | pbrook | stb_p(qemu_get_ram_ptr(ram_addr), val); |
3067 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3068 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3069 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3070 | f23db169 | bellard | flushed */
|
3071 | f23db169 | bellard | if (dirty_flags == 0xff) |
3072 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3073 | 9fa3e853 | bellard | } |
3074 | 9fa3e853 | bellard | |
3075 | c227f099 | Anthony Liguori | static void notdirty_mem_writew(void *opaque, target_phys_addr_t ram_addr, |
3076 | 0f459d16 | pbrook | uint32_t val) |
3077 | 9fa3e853 | bellard | { |
3078 | 3a7d929e | bellard | int dirty_flags;
|
3079 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3080 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3081 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3082 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 2);
|
3083 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3084 | 9fa3e853 | bellard | #endif
|
3085 | 3a7d929e | bellard | } |
3086 | 5579c7f3 | pbrook | stw_p(qemu_get_ram_ptr(ram_addr), val); |
3087 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3088 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3089 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3090 | f23db169 | bellard | flushed */
|
3091 | f23db169 | bellard | if (dirty_flags == 0xff) |
3092 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3093 | 9fa3e853 | bellard | } |
3094 | 9fa3e853 | bellard | |
3095 | c227f099 | Anthony Liguori | static void notdirty_mem_writel(void *opaque, target_phys_addr_t ram_addr, |
3096 | 0f459d16 | pbrook | uint32_t val) |
3097 | 9fa3e853 | bellard | { |
3098 | 3a7d929e | bellard | int dirty_flags;
|
3099 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3100 | 3a7d929e | bellard | if (!(dirty_flags & CODE_DIRTY_FLAG)) {
|
3101 | 9fa3e853 | bellard | #if !defined(CONFIG_USER_ONLY)
|
3102 | 3a7d929e | bellard | tb_invalidate_phys_page_fast(ram_addr, 4);
|
3103 | f7c11b53 | Yoshiaki Tamura | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
3104 | 9fa3e853 | bellard | #endif
|
3105 | 3a7d929e | bellard | } |
3106 | 5579c7f3 | pbrook | stl_p(qemu_get_ram_ptr(ram_addr), val); |
3107 | f23db169 | bellard | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG);
|
3108 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
3109 | f23db169 | bellard | /* we remove the notdirty callback only if the code has been
|
3110 | f23db169 | bellard | flushed */
|
3111 | f23db169 | bellard | if (dirty_flags == 0xff) |
3112 | 2e70f6ef | pbrook | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
3113 | 9fa3e853 | bellard | } |
3114 | 9fa3e853 | bellard | |
3115 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const error_mem_read[3] = { |
3116 | 9fa3e853 | bellard | NULL, /* never used */ |
3117 | 9fa3e853 | bellard | NULL, /* never used */ |
3118 | 9fa3e853 | bellard | NULL, /* never used */ |
3119 | 9fa3e853 | bellard | }; |
3120 | 9fa3e853 | bellard | |
3121 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
3122 | 1ccde1cb | bellard | notdirty_mem_writeb, |
3123 | 1ccde1cb | bellard | notdirty_mem_writew, |
3124 | 1ccde1cb | bellard | notdirty_mem_writel, |
3125 | 1ccde1cb | bellard | }; |
3126 | 1ccde1cb | bellard | |
3127 | 0f459d16 | pbrook | /* Generate a debug exception if a watchpoint has been hit. */
|
3128 | b4051334 | aliguori | static void check_watchpoint(int offset, int len_mask, int flags) |
3129 | 0f459d16 | pbrook | { |
3130 | 0f459d16 | pbrook | CPUState *env = cpu_single_env; |
3131 | 06d55cc1 | aliguori | target_ulong pc, cs_base; |
3132 | 06d55cc1 | aliguori | TranslationBlock *tb; |
3133 | 0f459d16 | pbrook | target_ulong vaddr; |
3134 | a1d1bb31 | aliguori | CPUWatchpoint *wp; |
3135 | 06d55cc1 | aliguori | int cpu_flags;
|
3136 | 0f459d16 | pbrook | |
3137 | 06d55cc1 | aliguori | if (env->watchpoint_hit) {
|
3138 | 06d55cc1 | aliguori | /* We re-entered the check after replacing the TB. Now raise
|
3139 | 06d55cc1 | aliguori | * the debug interrupt so that is will trigger after the
|
3140 | 06d55cc1 | aliguori | * current instruction. */
|
3141 | 06d55cc1 | aliguori | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
3142 | 06d55cc1 | aliguori | return;
|
3143 | 06d55cc1 | aliguori | } |
3144 | 2e70f6ef | pbrook | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
3145 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
3146 | b4051334 | aliguori | if ((vaddr == (wp->vaddr & len_mask) ||
|
3147 | b4051334 | aliguori | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
3148 | 6e140f28 | aliguori | wp->flags |= BP_WATCHPOINT_HIT; |
3149 | 6e140f28 | aliguori | if (!env->watchpoint_hit) {
|
3150 | 6e140f28 | aliguori | env->watchpoint_hit = wp; |
3151 | 6e140f28 | aliguori | tb = tb_find_pc(env->mem_io_pc); |
3152 | 6e140f28 | aliguori | if (!tb) {
|
3153 | 6e140f28 | aliguori | cpu_abort(env, "check_watchpoint: could not find TB for "
|
3154 | 6e140f28 | aliguori | "pc=%p", (void *)env->mem_io_pc); |
3155 | 6e140f28 | aliguori | } |
3156 | 6e140f28 | aliguori | cpu_restore_state(tb, env, env->mem_io_pc, NULL);
|
3157 | 6e140f28 | aliguori | tb_phys_invalidate(tb, -1);
|
3158 | 6e140f28 | aliguori | if (wp->flags & BP_STOP_BEFORE_ACCESS) {
|
3159 | 6e140f28 | aliguori | env->exception_index = EXCP_DEBUG; |
3160 | 6e140f28 | aliguori | } else {
|
3161 | 6e140f28 | aliguori | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
3162 | 6e140f28 | aliguori | tb_gen_code(env, pc, cs_base, cpu_flags, 1);
|
3163 | 6e140f28 | aliguori | } |
3164 | 6e140f28 | aliguori | cpu_resume_from_signal(env, NULL);
|
3165 | 06d55cc1 | aliguori | } |
3166 | 6e140f28 | aliguori | } else {
|
3167 | 6e140f28 | aliguori | wp->flags &= ~BP_WATCHPOINT_HIT; |
3168 | 0f459d16 | pbrook | } |
3169 | 0f459d16 | pbrook | } |
3170 | 0f459d16 | pbrook | } |
3171 | 0f459d16 | pbrook | |
3172 | 6658ffb8 | pbrook | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks,
|
3173 | 6658ffb8 | pbrook | so these check for a hit then pass through to the normal out-of-line
|
3174 | 6658ffb8 | pbrook | phys routines. */
|
3175 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
3176 | 6658ffb8 | pbrook | { |
3177 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ);
|
3178 | 6658ffb8 | pbrook | return ldub_phys(addr);
|
3179 | 6658ffb8 | pbrook | } |
3180 | 6658ffb8 | pbrook | |
3181 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
3182 | 6658ffb8 | pbrook | { |
3183 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ);
|
3184 | 6658ffb8 | pbrook | return lduw_phys(addr);
|
3185 | 6658ffb8 | pbrook | } |
3186 | 6658ffb8 | pbrook | |
3187 | c227f099 | Anthony Liguori | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
3188 | 6658ffb8 | pbrook | { |
3189 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ);
|
3190 | 6658ffb8 | pbrook | return ldl_phys(addr);
|
3191 | 6658ffb8 | pbrook | } |
3192 | 6658ffb8 | pbrook | |
3193 | c227f099 | Anthony Liguori | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
3194 | 6658ffb8 | pbrook | uint32_t val) |
3195 | 6658ffb8 | pbrook | { |
3196 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE);
|
3197 | 6658ffb8 | pbrook | stb_phys(addr, val); |
3198 | 6658ffb8 | pbrook | } |
3199 | 6658ffb8 | pbrook | |
3200 | c227f099 | Anthony Liguori | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
3201 | 6658ffb8 | pbrook | uint32_t val) |
3202 | 6658ffb8 | pbrook | { |
3203 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE);
|
3204 | 6658ffb8 | pbrook | stw_phys(addr, val); |
3205 | 6658ffb8 | pbrook | } |
3206 | 6658ffb8 | pbrook | |
3207 | c227f099 | Anthony Liguori | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
3208 | 6658ffb8 | pbrook | uint32_t val) |
3209 | 6658ffb8 | pbrook | { |
3210 | b4051334 | aliguori | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE);
|
3211 | 6658ffb8 | pbrook | stl_phys(addr, val); |
3212 | 6658ffb8 | pbrook | } |
3213 | 6658ffb8 | pbrook | |
3214 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
3215 | 6658ffb8 | pbrook | watch_mem_readb, |
3216 | 6658ffb8 | pbrook | watch_mem_readw, |
3217 | 6658ffb8 | pbrook | watch_mem_readl, |
3218 | 6658ffb8 | pbrook | }; |
3219 | 6658ffb8 | pbrook | |
3220 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
3221 | 6658ffb8 | pbrook | watch_mem_writeb, |
3222 | 6658ffb8 | pbrook | watch_mem_writew, |
3223 | 6658ffb8 | pbrook | watch_mem_writel, |
3224 | 6658ffb8 | pbrook | }; |
3225 | 6658ffb8 | pbrook | |
3226 | f6405247 | Richard Henderson | static inline uint32_t subpage_readlen (subpage_t *mmio, |
3227 | f6405247 | Richard Henderson | target_phys_addr_t addr, |
3228 | f6405247 | Richard Henderson | unsigned int len) |
3229 | db7b5426 | blueswir1 | { |
3230 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
3231 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3232 | db7b5426 | blueswir1 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
3233 | db7b5426 | blueswir1 | mmio, len, addr, idx); |
3234 | db7b5426 | blueswir1 | #endif
|
3235 | db7b5426 | blueswir1 | |
3236 | f6405247 | Richard Henderson | addr += mmio->region_offset[idx]; |
3237 | f6405247 | Richard Henderson | idx = mmio->sub_io_index[idx]; |
3238 | f6405247 | Richard Henderson | return io_mem_read[idx][len](io_mem_opaque[idx], addr);
|
3239 | db7b5426 | blueswir1 | } |
3240 | db7b5426 | blueswir1 | |
3241 | c227f099 | Anthony Liguori | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
3242 | f6405247 | Richard Henderson | uint32_t value, unsigned int len) |
3243 | db7b5426 | blueswir1 | { |
3244 | f6405247 | Richard Henderson | unsigned int idx = SUBPAGE_IDX(addr); |
3245 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3246 | f6405247 | Richard Henderson | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", |
3247 | f6405247 | Richard Henderson | __func__, mmio, len, addr, idx, value); |
3248 | db7b5426 | blueswir1 | #endif
|
3249 | f6405247 | Richard Henderson | |
3250 | f6405247 | Richard Henderson | addr += mmio->region_offset[idx]; |
3251 | f6405247 | Richard Henderson | idx = mmio->sub_io_index[idx]; |
3252 | f6405247 | Richard Henderson | io_mem_write[idx][len](io_mem_opaque[idx], addr, value); |
3253 | db7b5426 | blueswir1 | } |
3254 | db7b5426 | blueswir1 | |
3255 | c227f099 | Anthony Liguori | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
3256 | db7b5426 | blueswir1 | { |
3257 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 0); |
3258 | db7b5426 | blueswir1 | } |
3259 | db7b5426 | blueswir1 | |
3260 | c227f099 | Anthony Liguori | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
3261 | db7b5426 | blueswir1 | uint32_t value) |
3262 | db7b5426 | blueswir1 | { |
3263 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 0);
|
3264 | db7b5426 | blueswir1 | } |
3265 | db7b5426 | blueswir1 | |
3266 | c227f099 | Anthony Liguori | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
3267 | db7b5426 | blueswir1 | { |
3268 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 1); |
3269 | db7b5426 | blueswir1 | } |
3270 | db7b5426 | blueswir1 | |
3271 | c227f099 | Anthony Liguori | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
3272 | db7b5426 | blueswir1 | uint32_t value) |
3273 | db7b5426 | blueswir1 | { |
3274 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 1);
|
3275 | db7b5426 | blueswir1 | } |
3276 | db7b5426 | blueswir1 | |
3277 | c227f099 | Anthony Liguori | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
3278 | db7b5426 | blueswir1 | { |
3279 | db7b5426 | blueswir1 | return subpage_readlen(opaque, addr, 2); |
3280 | db7b5426 | blueswir1 | } |
3281 | db7b5426 | blueswir1 | |
3282 | f6405247 | Richard Henderson | static void subpage_writel (void *opaque, target_phys_addr_t addr, |
3283 | f6405247 | Richard Henderson | uint32_t value) |
3284 | db7b5426 | blueswir1 | { |
3285 | db7b5426 | blueswir1 | subpage_writelen(opaque, addr, value, 2);
|
3286 | db7b5426 | blueswir1 | } |
3287 | db7b5426 | blueswir1 | |
3288 | d60efc6b | Blue Swirl | static CPUReadMemoryFunc * const subpage_read[] = { |
3289 | db7b5426 | blueswir1 | &subpage_readb, |
3290 | db7b5426 | blueswir1 | &subpage_readw, |
3291 | db7b5426 | blueswir1 | &subpage_readl, |
3292 | db7b5426 | blueswir1 | }; |
3293 | db7b5426 | blueswir1 | |
3294 | d60efc6b | Blue Swirl | static CPUWriteMemoryFunc * const subpage_write[] = { |
3295 | db7b5426 | blueswir1 | &subpage_writeb, |
3296 | db7b5426 | blueswir1 | &subpage_writew, |
3297 | db7b5426 | blueswir1 | &subpage_writel, |
3298 | db7b5426 | blueswir1 | }; |
3299 | db7b5426 | blueswir1 | |
3300 | c227f099 | Anthony Liguori | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
3301 | c227f099 | Anthony Liguori | ram_addr_t memory, ram_addr_t region_offset) |
3302 | db7b5426 | blueswir1 | { |
3303 | db7b5426 | blueswir1 | int idx, eidx;
|
3304 | db7b5426 | blueswir1 | |
3305 | db7b5426 | blueswir1 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE)
|
3306 | db7b5426 | blueswir1 | return -1; |
3307 | db7b5426 | blueswir1 | idx = SUBPAGE_IDX(start); |
3308 | db7b5426 | blueswir1 | eidx = SUBPAGE_IDX(end); |
3309 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3310 | 0bf9e31a | Blue Swirl | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__,
|
3311 | db7b5426 | blueswir1 | mmio, start, end, idx, eidx, memory); |
3312 | db7b5426 | blueswir1 | #endif
|
3313 | 95c318f5 | Gleb Natapov | if ((memory & ~TARGET_PAGE_MASK) == IO_MEM_RAM)
|
3314 | 95c318f5 | Gleb Natapov | memory = IO_MEM_UNASSIGNED; |
3315 | f6405247 | Richard Henderson | memory = (memory >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3316 | db7b5426 | blueswir1 | for (; idx <= eidx; idx++) {
|
3317 | f6405247 | Richard Henderson | mmio->sub_io_index[idx] = memory; |
3318 | f6405247 | Richard Henderson | mmio->region_offset[idx] = region_offset; |
3319 | db7b5426 | blueswir1 | } |
3320 | db7b5426 | blueswir1 | |
3321 | db7b5426 | blueswir1 | return 0; |
3322 | db7b5426 | blueswir1 | } |
3323 | db7b5426 | blueswir1 | |
3324 | f6405247 | Richard Henderson | static subpage_t *subpage_init (target_phys_addr_t base, ram_addr_t *phys,
|
3325 | f6405247 | Richard Henderson | ram_addr_t orig_memory, |
3326 | f6405247 | Richard Henderson | ram_addr_t region_offset) |
3327 | db7b5426 | blueswir1 | { |
3328 | c227f099 | Anthony Liguori | subpage_t *mmio; |
3329 | db7b5426 | blueswir1 | int subpage_memory;
|
3330 | db7b5426 | blueswir1 | |
3331 | c227f099 | Anthony Liguori | mmio = qemu_mallocz(sizeof(subpage_t));
|
3332 | 1eec614b | aliguori | |
3333 | 1eec614b | aliguori | mmio->base = base; |
3334 | 2507c12a | Alexander Graf | subpage_memory = cpu_register_io_memory(subpage_read, subpage_write, mmio, |
3335 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3336 | db7b5426 | blueswir1 | #if defined(DEBUG_SUBPAGE)
|
3337 | 1eec614b | aliguori | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
3338 | 1eec614b | aliguori | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
3339 | db7b5426 | blueswir1 | #endif
|
3340 | 1eec614b | aliguori | *phys = subpage_memory | IO_MEM_SUBPAGE; |
3341 | f6405247 | Richard Henderson | subpage_register(mmio, 0, TARGET_PAGE_SIZE-1, orig_memory, region_offset); |
3342 | db7b5426 | blueswir1 | |
3343 | db7b5426 | blueswir1 | return mmio;
|
3344 | db7b5426 | blueswir1 | } |
3345 | db7b5426 | blueswir1 | |
3346 | 88715657 | aliguori | static int get_free_io_mem_idx(void) |
3347 | 88715657 | aliguori | { |
3348 | 88715657 | aliguori | int i;
|
3349 | 88715657 | aliguori | |
3350 | 88715657 | aliguori | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
3351 | 88715657 | aliguori | if (!io_mem_used[i]) {
|
3352 | 88715657 | aliguori | io_mem_used[i] = 1;
|
3353 | 88715657 | aliguori | return i;
|
3354 | 88715657 | aliguori | } |
3355 | c6703b47 | Riku Voipio | fprintf(stderr, "RAN out out io_mem_idx, max %d !\n", IO_MEM_NB_ENTRIES);
|
3356 | 88715657 | aliguori | return -1; |
3357 | 88715657 | aliguori | } |
3358 | 88715657 | aliguori | |
3359 | dd310534 | Alexander Graf | /*
|
3360 | dd310534 | Alexander Graf | * Usually, devices operate in little endian mode. There are devices out
|
3361 | dd310534 | Alexander Graf | * there that operate in big endian too. Each device gets byte swapped
|
3362 | dd310534 | Alexander Graf | * mmio if plugged onto a CPU that does the other endianness.
|
3363 | dd310534 | Alexander Graf | *
|
3364 | dd310534 | Alexander Graf | * CPU Device swap?
|
3365 | dd310534 | Alexander Graf | *
|
3366 | dd310534 | Alexander Graf | * little little no
|
3367 | dd310534 | Alexander Graf | * little big yes
|
3368 | dd310534 | Alexander Graf | * big little yes
|
3369 | dd310534 | Alexander Graf | * big big no
|
3370 | dd310534 | Alexander Graf | */
|
3371 | dd310534 | Alexander Graf | |
3372 | dd310534 | Alexander Graf | typedef struct SwapEndianContainer { |
3373 | dd310534 | Alexander Graf | CPUReadMemoryFunc *read[3];
|
3374 | dd310534 | Alexander Graf | CPUWriteMemoryFunc *write[3];
|
3375 | dd310534 | Alexander Graf | void *opaque;
|
3376 | dd310534 | Alexander Graf | } SwapEndianContainer; |
3377 | dd310534 | Alexander Graf | |
3378 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readb (void *opaque, target_phys_addr_t addr) |
3379 | dd310534 | Alexander Graf | { |
3380 | dd310534 | Alexander Graf | uint32_t val; |
3381 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3382 | dd310534 | Alexander Graf | val = c->read[0](c->opaque, addr);
|
3383 | dd310534 | Alexander Graf | return val;
|
3384 | dd310534 | Alexander Graf | } |
3385 | dd310534 | Alexander Graf | |
3386 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readw(void *opaque, target_phys_addr_t addr) |
3387 | dd310534 | Alexander Graf | { |
3388 | dd310534 | Alexander Graf | uint32_t val; |
3389 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3390 | dd310534 | Alexander Graf | val = bswap16(c->read[1](c->opaque, addr));
|
3391 | dd310534 | Alexander Graf | return val;
|
3392 | dd310534 | Alexander Graf | } |
3393 | dd310534 | Alexander Graf | |
3394 | dd310534 | Alexander Graf | static uint32_t swapendian_mem_readl(void *opaque, target_phys_addr_t addr) |
3395 | dd310534 | Alexander Graf | { |
3396 | dd310534 | Alexander Graf | uint32_t val; |
3397 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3398 | dd310534 | Alexander Graf | val = bswap32(c->read[2](c->opaque, addr));
|
3399 | dd310534 | Alexander Graf | return val;
|
3400 | dd310534 | Alexander Graf | } |
3401 | dd310534 | Alexander Graf | |
3402 | dd310534 | Alexander Graf | static CPUReadMemoryFunc * const swapendian_readfn[3]={ |
3403 | dd310534 | Alexander Graf | swapendian_mem_readb, |
3404 | dd310534 | Alexander Graf | swapendian_mem_readw, |
3405 | dd310534 | Alexander Graf | swapendian_mem_readl |
3406 | dd310534 | Alexander Graf | }; |
3407 | dd310534 | Alexander Graf | |
3408 | dd310534 | Alexander Graf | static void swapendian_mem_writeb(void *opaque, target_phys_addr_t addr, |
3409 | dd310534 | Alexander Graf | uint32_t val) |
3410 | dd310534 | Alexander Graf | { |
3411 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3412 | dd310534 | Alexander Graf | c->write[0](c->opaque, addr, val);
|
3413 | dd310534 | Alexander Graf | } |
3414 | dd310534 | Alexander Graf | |
3415 | dd310534 | Alexander Graf | static void swapendian_mem_writew(void *opaque, target_phys_addr_t addr, |
3416 | dd310534 | Alexander Graf | uint32_t val) |
3417 | dd310534 | Alexander Graf | { |
3418 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3419 | dd310534 | Alexander Graf | c->write[1](c->opaque, addr, bswap16(val));
|
3420 | dd310534 | Alexander Graf | } |
3421 | dd310534 | Alexander Graf | |
3422 | dd310534 | Alexander Graf | static void swapendian_mem_writel(void *opaque, target_phys_addr_t addr, |
3423 | dd310534 | Alexander Graf | uint32_t val) |
3424 | dd310534 | Alexander Graf | { |
3425 | dd310534 | Alexander Graf | SwapEndianContainer *c = opaque; |
3426 | dd310534 | Alexander Graf | c->write[2](c->opaque, addr, bswap32(val));
|
3427 | dd310534 | Alexander Graf | } |
3428 | dd310534 | Alexander Graf | |
3429 | dd310534 | Alexander Graf | static CPUWriteMemoryFunc * const swapendian_writefn[3]={ |
3430 | dd310534 | Alexander Graf | swapendian_mem_writeb, |
3431 | dd310534 | Alexander Graf | swapendian_mem_writew, |
3432 | dd310534 | Alexander Graf | swapendian_mem_writel |
3433 | dd310534 | Alexander Graf | }; |
3434 | dd310534 | Alexander Graf | |
3435 | dd310534 | Alexander Graf | static void swapendian_init(int io_index) |
3436 | dd310534 | Alexander Graf | { |
3437 | dd310534 | Alexander Graf | SwapEndianContainer *c = qemu_malloc(sizeof(SwapEndianContainer));
|
3438 | dd310534 | Alexander Graf | int i;
|
3439 | dd310534 | Alexander Graf | |
3440 | dd310534 | Alexander Graf | /* Swap mmio for big endian targets */
|
3441 | dd310534 | Alexander Graf | c->opaque = io_mem_opaque[io_index]; |
3442 | dd310534 | Alexander Graf | for (i = 0; i < 3; i++) { |
3443 | dd310534 | Alexander Graf | c->read[i] = io_mem_read[io_index][i]; |
3444 | dd310534 | Alexander Graf | c->write[i] = io_mem_write[io_index][i]; |
3445 | dd310534 | Alexander Graf | |
3446 | dd310534 | Alexander Graf | io_mem_read[io_index][i] = swapendian_readfn[i]; |
3447 | dd310534 | Alexander Graf | io_mem_write[io_index][i] = swapendian_writefn[i]; |
3448 | dd310534 | Alexander Graf | } |
3449 | dd310534 | Alexander Graf | io_mem_opaque[io_index] = c; |
3450 | dd310534 | Alexander Graf | } |
3451 | dd310534 | Alexander Graf | |
3452 | dd310534 | Alexander Graf | static void swapendian_del(int io_index) |
3453 | dd310534 | Alexander Graf | { |
3454 | dd310534 | Alexander Graf | if (io_mem_read[io_index][0] == swapendian_readfn[0]) { |
3455 | dd310534 | Alexander Graf | qemu_free(io_mem_opaque[io_index]); |
3456 | dd310534 | Alexander Graf | } |
3457 | dd310534 | Alexander Graf | } |
3458 | dd310534 | Alexander Graf | |
3459 | 33417e70 | bellard | /* mem_read and mem_write are arrays of functions containing the
|
3460 | 33417e70 | bellard | function to access byte (index 0), word (index 1) and dword (index
|
3461 | 0b4e6e3e | Paul Brook | 2). Functions can be omitted with a NULL function pointer.
|
3462 | 3ee89922 | blueswir1 | If io_index is non zero, the corresponding io zone is
|
3463 | 4254fab8 | blueswir1 | modified. If it is zero, a new io zone is allocated. The return
|
3464 | 4254fab8 | blueswir1 | value can be used with cpu_register_physical_memory(). (-1) is
|
3465 | 4254fab8 | blueswir1 | returned if error. */
|
3466 | 1eed09cb | Avi Kivity | static int cpu_register_io_memory_fixed(int io_index, |
3467 | d60efc6b | Blue Swirl | CPUReadMemoryFunc * const *mem_read,
|
3468 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
3469 | dd310534 | Alexander Graf | void *opaque, enum device_endian endian) |
3470 | 33417e70 | bellard | { |
3471 | 3cab721d | Richard Henderson | int i;
|
3472 | 3cab721d | Richard Henderson | |
3473 | 33417e70 | bellard | if (io_index <= 0) { |
3474 | 88715657 | aliguori | io_index = get_free_io_mem_idx(); |
3475 | 88715657 | aliguori | if (io_index == -1) |
3476 | 88715657 | aliguori | return io_index;
|
3477 | 33417e70 | bellard | } else {
|
3478 | 1eed09cb | Avi Kivity | io_index >>= IO_MEM_SHIFT; |
3479 | 33417e70 | bellard | if (io_index >= IO_MEM_NB_ENTRIES)
|
3480 | 33417e70 | bellard | return -1; |
3481 | 33417e70 | bellard | } |
3482 | b5ff1b31 | bellard | |
3483 | 3cab721d | Richard Henderson | for (i = 0; i < 3; ++i) { |
3484 | 3cab721d | Richard Henderson | io_mem_read[io_index][i] |
3485 | 3cab721d | Richard Henderson | = (mem_read[i] ? mem_read[i] : unassigned_mem_read[i]); |
3486 | 3cab721d | Richard Henderson | } |
3487 | 3cab721d | Richard Henderson | for (i = 0; i < 3; ++i) { |
3488 | 3cab721d | Richard Henderson | io_mem_write[io_index][i] |
3489 | 3cab721d | Richard Henderson | = (mem_write[i] ? mem_write[i] : unassigned_mem_write[i]); |
3490 | 3cab721d | Richard Henderson | } |
3491 | a4193c8a | bellard | io_mem_opaque[io_index] = opaque; |
3492 | f6405247 | Richard Henderson | |
3493 | dd310534 | Alexander Graf | switch (endian) {
|
3494 | dd310534 | Alexander Graf | case DEVICE_BIG_ENDIAN:
|
3495 | dd310534 | Alexander Graf | #ifndef TARGET_WORDS_BIGENDIAN
|
3496 | dd310534 | Alexander Graf | swapendian_init(io_index); |
3497 | dd310534 | Alexander Graf | #endif
|
3498 | dd310534 | Alexander Graf | break;
|
3499 | dd310534 | Alexander Graf | case DEVICE_LITTLE_ENDIAN:
|
3500 | dd310534 | Alexander Graf | #ifdef TARGET_WORDS_BIGENDIAN
|
3501 | dd310534 | Alexander Graf | swapendian_init(io_index); |
3502 | dd310534 | Alexander Graf | #endif
|
3503 | dd310534 | Alexander Graf | break;
|
3504 | dd310534 | Alexander Graf | case DEVICE_NATIVE_ENDIAN:
|
3505 | dd310534 | Alexander Graf | default:
|
3506 | dd310534 | Alexander Graf | break;
|
3507 | dd310534 | Alexander Graf | } |
3508 | dd310534 | Alexander Graf | |
3509 | f6405247 | Richard Henderson | return (io_index << IO_MEM_SHIFT);
|
3510 | 33417e70 | bellard | } |
3511 | 61382a50 | bellard | |
3512 | d60efc6b | Blue Swirl | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
3513 | d60efc6b | Blue Swirl | CPUWriteMemoryFunc * const *mem_write,
|
3514 | dd310534 | Alexander Graf | void *opaque, enum device_endian endian) |
3515 | 1eed09cb | Avi Kivity | { |
3516 | 2507c12a | Alexander Graf | return cpu_register_io_memory_fixed(0, mem_read, mem_write, opaque, endian); |
3517 | 1eed09cb | Avi Kivity | } |
3518 | 1eed09cb | Avi Kivity | |
3519 | 88715657 | aliguori | void cpu_unregister_io_memory(int io_table_address) |
3520 | 88715657 | aliguori | { |
3521 | 88715657 | aliguori | int i;
|
3522 | 88715657 | aliguori | int io_index = io_table_address >> IO_MEM_SHIFT;
|
3523 | 88715657 | aliguori | |
3524 | dd310534 | Alexander Graf | swapendian_del(io_index); |
3525 | dd310534 | Alexander Graf | |
3526 | 88715657 | aliguori | for (i=0;i < 3; i++) { |
3527 | 88715657 | aliguori | io_mem_read[io_index][i] = unassigned_mem_read[i]; |
3528 | 88715657 | aliguori | io_mem_write[io_index][i] = unassigned_mem_write[i]; |
3529 | 88715657 | aliguori | } |
3530 | 88715657 | aliguori | io_mem_opaque[io_index] = NULL;
|
3531 | 88715657 | aliguori | io_mem_used[io_index] = 0;
|
3532 | 88715657 | aliguori | } |
3533 | 88715657 | aliguori | |
3534 | e9179ce1 | Avi Kivity | static void io_mem_init(void) |
3535 | e9179ce1 | Avi Kivity | { |
3536 | e9179ce1 | Avi Kivity | int i;
|
3537 | e9179ce1 | Avi Kivity | |
3538 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, |
3539 | 2507c12a | Alexander Graf | unassigned_mem_write, NULL,
|
3540 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3541 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, |
3542 | 2507c12a | Alexander Graf | unassigned_mem_write, NULL,
|
3543 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3544 | 2507c12a | Alexander Graf | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, |
3545 | 2507c12a | Alexander Graf | notdirty_mem_write, NULL,
|
3546 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3547 | e9179ce1 | Avi Kivity | for (i=0; i<5; i++) |
3548 | e9179ce1 | Avi Kivity | io_mem_used[i] = 1;
|
3549 | e9179ce1 | Avi Kivity | |
3550 | e9179ce1 | Avi Kivity | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
3551 | 2507c12a | Alexander Graf | watch_mem_write, NULL,
|
3552 | 2507c12a | Alexander Graf | DEVICE_NATIVE_ENDIAN); |
3553 | e9179ce1 | Avi Kivity | } |
3554 | e9179ce1 | Avi Kivity | |
3555 | e2eef170 | pbrook | #endif /* !defined(CONFIG_USER_ONLY) */ |
3556 | e2eef170 | pbrook | |
3557 | 13eb76e0 | bellard | /* physical memory access (slow version, mainly for debug) */
|
3558 | 13eb76e0 | bellard | #if defined(CONFIG_USER_ONLY)
|
3559 | a68fe89c | Paul Brook | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
3560 | a68fe89c | Paul Brook | uint8_t *buf, int len, int is_write) |
3561 | 13eb76e0 | bellard | { |
3562 | 13eb76e0 | bellard | int l, flags;
|
3563 | 13eb76e0 | bellard | target_ulong page; |
3564 | 53a5960a | pbrook | void * p;
|
3565 | 13eb76e0 | bellard | |
3566 | 13eb76e0 | bellard | while (len > 0) { |
3567 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3568 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3569 | 13eb76e0 | bellard | if (l > len)
|
3570 | 13eb76e0 | bellard | l = len; |
3571 | 13eb76e0 | bellard | flags = page_get_flags(page); |
3572 | 13eb76e0 | bellard | if (!(flags & PAGE_VALID))
|
3573 | a68fe89c | Paul Brook | return -1; |
3574 | 13eb76e0 | bellard | if (is_write) {
|
3575 | 13eb76e0 | bellard | if (!(flags & PAGE_WRITE))
|
3576 | a68fe89c | Paul Brook | return -1; |
3577 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3578 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
3579 | a68fe89c | Paul Brook | return -1; |
3580 | 72fb7daa | aurel32 | memcpy(p, buf, l); |
3581 | 72fb7daa | aurel32 | unlock_user(p, addr, l); |
3582 | 13eb76e0 | bellard | } else {
|
3583 | 13eb76e0 | bellard | if (!(flags & PAGE_READ))
|
3584 | a68fe89c | Paul Brook | return -1; |
3585 | 579a97f7 | bellard | /* XXX: this code should not depend on lock_user */
|
3586 | 72fb7daa | aurel32 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
3587 | a68fe89c | Paul Brook | return -1; |
3588 | 72fb7daa | aurel32 | memcpy(buf, p, l); |
3589 | 5b257578 | aurel32 | unlock_user(p, addr, 0);
|
3590 | 13eb76e0 | bellard | } |
3591 | 13eb76e0 | bellard | len -= l; |
3592 | 13eb76e0 | bellard | buf += l; |
3593 | 13eb76e0 | bellard | addr += l; |
3594 | 13eb76e0 | bellard | } |
3595 | a68fe89c | Paul Brook | return 0; |
3596 | 13eb76e0 | bellard | } |
3597 | 8df1cd07 | bellard | |
3598 | 13eb76e0 | bellard | #else
|
3599 | c227f099 | Anthony Liguori | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
3600 | 13eb76e0 | bellard | int len, int is_write) |
3601 | 13eb76e0 | bellard | { |
3602 | 13eb76e0 | bellard | int l, io_index;
|
3603 | 13eb76e0 | bellard | uint8_t *ptr; |
3604 | 13eb76e0 | bellard | uint32_t val; |
3605 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3606 | 2e12669a | bellard | unsigned long pd; |
3607 | 92e873b9 | bellard | PhysPageDesc *p; |
3608 | 3b46e624 | ths | |
3609 | 13eb76e0 | bellard | while (len > 0) { |
3610 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
3611 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3612 | 13eb76e0 | bellard | if (l > len)
|
3613 | 13eb76e0 | bellard | l = len; |
3614 | 92e873b9 | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3615 | 13eb76e0 | bellard | if (!p) {
|
3616 | 13eb76e0 | bellard | pd = IO_MEM_UNASSIGNED; |
3617 | 13eb76e0 | bellard | } else {
|
3618 | 13eb76e0 | bellard | pd = p->phys_offset; |
3619 | 13eb76e0 | bellard | } |
3620 | 3b46e624 | ths | |
3621 | 13eb76e0 | bellard | if (is_write) {
|
3622 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3623 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3624 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3625 | 8da3ff18 | pbrook | if (p)
|
3626 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3627 | 6a00d601 | bellard | /* XXX: could force cpu_single_env to NULL to avoid
|
3628 | 6a00d601 | bellard | potential bugs */
|
3629 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3630 | 1c213d19 | bellard | /* 32 bit write access */
|
3631 | c27004ec | bellard | val = ldl_p(buf); |
3632 | 6c2934db | aurel32 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val);
|
3633 | 13eb76e0 | bellard | l = 4;
|
3634 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3635 | 1c213d19 | bellard | /* 16 bit write access */
|
3636 | c27004ec | bellard | val = lduw_p(buf); |
3637 | 6c2934db | aurel32 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val);
|
3638 | 13eb76e0 | bellard | l = 2;
|
3639 | 13eb76e0 | bellard | } else {
|
3640 | 1c213d19 | bellard | /* 8 bit write access */
|
3641 | c27004ec | bellard | val = ldub_p(buf); |
3642 | 6c2934db | aurel32 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val);
|
3643 | 13eb76e0 | bellard | l = 1;
|
3644 | 13eb76e0 | bellard | } |
3645 | 13eb76e0 | bellard | } else {
|
3646 | b448f2f3 | bellard | unsigned long addr1; |
3647 | b448f2f3 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3648 | 13eb76e0 | bellard | /* RAM case */
|
3649 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3650 | 13eb76e0 | bellard | memcpy(ptr, buf, l); |
3651 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3652 | 3a7d929e | bellard | /* invalidate code */
|
3653 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
3654 | 3a7d929e | bellard | /* set dirty bit */
|
3655 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
3656 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
3657 | 3a7d929e | bellard | } |
3658 | 13eb76e0 | bellard | } |
3659 | 13eb76e0 | bellard | } else {
|
3660 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3661 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3662 | c227f099 | Anthony Liguori | target_phys_addr_t addr1 = addr; |
3663 | 13eb76e0 | bellard | /* I/O case */
|
3664 | 13eb76e0 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3665 | 8da3ff18 | pbrook | if (p)
|
3666 | 6c2934db | aurel32 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3667 | 6c2934db | aurel32 | if (l >= 4 && ((addr1 & 3) == 0)) { |
3668 | 13eb76e0 | bellard | /* 32 bit read access */
|
3669 | 6c2934db | aurel32 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1);
|
3670 | c27004ec | bellard | stl_p(buf, val); |
3671 | 13eb76e0 | bellard | l = 4;
|
3672 | 6c2934db | aurel32 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
3673 | 13eb76e0 | bellard | /* 16 bit read access */
|
3674 | 6c2934db | aurel32 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1);
|
3675 | c27004ec | bellard | stw_p(buf, val); |
3676 | 13eb76e0 | bellard | l = 2;
|
3677 | 13eb76e0 | bellard | } else {
|
3678 | 1c213d19 | bellard | /* 8 bit read access */
|
3679 | 6c2934db | aurel32 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1);
|
3680 | c27004ec | bellard | stb_p(buf, val); |
3681 | 13eb76e0 | bellard | l = 1;
|
3682 | 13eb76e0 | bellard | } |
3683 | 13eb76e0 | bellard | } else {
|
3684 | 13eb76e0 | bellard | /* RAM case */
|
3685 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3686 | 13eb76e0 | bellard | (addr & ~TARGET_PAGE_MASK); |
3687 | 13eb76e0 | bellard | memcpy(buf, ptr, l); |
3688 | 13eb76e0 | bellard | } |
3689 | 13eb76e0 | bellard | } |
3690 | 13eb76e0 | bellard | len -= l; |
3691 | 13eb76e0 | bellard | buf += l; |
3692 | 13eb76e0 | bellard | addr += l; |
3693 | 13eb76e0 | bellard | } |
3694 | 13eb76e0 | bellard | } |
3695 | 8df1cd07 | bellard | |
3696 | d0ecd2aa | bellard | /* used for ROM loading : can write in RAM and ROM */
|
3697 | c227f099 | Anthony Liguori | void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
3698 | d0ecd2aa | bellard | const uint8_t *buf, int len) |
3699 | d0ecd2aa | bellard | { |
3700 | d0ecd2aa | bellard | int l;
|
3701 | d0ecd2aa | bellard | uint8_t *ptr; |
3702 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3703 | d0ecd2aa | bellard | unsigned long pd; |
3704 | d0ecd2aa | bellard | PhysPageDesc *p; |
3705 | 3b46e624 | ths | |
3706 | d0ecd2aa | bellard | while (len > 0) { |
3707 | d0ecd2aa | bellard | page = addr & TARGET_PAGE_MASK; |
3708 | d0ecd2aa | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
3709 | d0ecd2aa | bellard | if (l > len)
|
3710 | d0ecd2aa | bellard | l = len; |
3711 | d0ecd2aa | bellard | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3712 | d0ecd2aa | bellard | if (!p) {
|
3713 | d0ecd2aa | bellard | pd = IO_MEM_UNASSIGNED; |
3714 | d0ecd2aa | bellard | } else {
|
3715 | d0ecd2aa | bellard | pd = p->phys_offset; |
3716 | d0ecd2aa | bellard | } |
3717 | 3b46e624 | ths | |
3718 | d0ecd2aa | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
|
3719 | 2a4188a3 | bellard | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
3720 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3721 | d0ecd2aa | bellard | /* do nothing */
|
3722 | d0ecd2aa | bellard | } else {
|
3723 | d0ecd2aa | bellard | unsigned long addr1; |
3724 | d0ecd2aa | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3725 | d0ecd2aa | bellard | /* ROM/RAM case */
|
3726 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3727 | d0ecd2aa | bellard | memcpy(ptr, buf, l); |
3728 | d0ecd2aa | bellard | } |
3729 | d0ecd2aa | bellard | len -= l; |
3730 | d0ecd2aa | bellard | buf += l; |
3731 | d0ecd2aa | bellard | addr += l; |
3732 | d0ecd2aa | bellard | } |
3733 | d0ecd2aa | bellard | } |
3734 | d0ecd2aa | bellard | |
3735 | 6d16c2f8 | aliguori | typedef struct { |
3736 | 6d16c2f8 | aliguori | void *buffer;
|
3737 | c227f099 | Anthony Liguori | target_phys_addr_t addr; |
3738 | c227f099 | Anthony Liguori | target_phys_addr_t len; |
3739 | 6d16c2f8 | aliguori | } BounceBuffer; |
3740 | 6d16c2f8 | aliguori | |
3741 | 6d16c2f8 | aliguori | static BounceBuffer bounce;
|
3742 | 6d16c2f8 | aliguori | |
3743 | ba223c29 | aliguori | typedef struct MapClient { |
3744 | ba223c29 | aliguori | void *opaque;
|
3745 | ba223c29 | aliguori | void (*callback)(void *opaque); |
3746 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(MapClient) link; |
3747 | ba223c29 | aliguori | } MapClient; |
3748 | ba223c29 | aliguori | |
3749 | 72cf2d4f | Blue Swirl | static QLIST_HEAD(map_client_list, MapClient) map_client_list
|
3750 | 72cf2d4f | Blue Swirl | = QLIST_HEAD_INITIALIZER(map_client_list); |
3751 | ba223c29 | aliguori | |
3752 | ba223c29 | aliguori | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
3753 | ba223c29 | aliguori | { |
3754 | ba223c29 | aliguori | MapClient *client = qemu_malloc(sizeof(*client));
|
3755 | ba223c29 | aliguori | |
3756 | ba223c29 | aliguori | client->opaque = opaque; |
3757 | ba223c29 | aliguori | client->callback = callback; |
3758 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&map_client_list, client, link); |
3759 | ba223c29 | aliguori | return client;
|
3760 | ba223c29 | aliguori | } |
3761 | ba223c29 | aliguori | |
3762 | ba223c29 | aliguori | void cpu_unregister_map_client(void *_client) |
3763 | ba223c29 | aliguori | { |
3764 | ba223c29 | aliguori | MapClient *client = (MapClient *)_client; |
3765 | ba223c29 | aliguori | |
3766 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(client, link); |
3767 | 34d5e948 | Isaku Yamahata | qemu_free(client); |
3768 | ba223c29 | aliguori | } |
3769 | ba223c29 | aliguori | |
3770 | ba223c29 | aliguori | static void cpu_notify_map_clients(void) |
3771 | ba223c29 | aliguori | { |
3772 | ba223c29 | aliguori | MapClient *client; |
3773 | ba223c29 | aliguori | |
3774 | 72cf2d4f | Blue Swirl | while (!QLIST_EMPTY(&map_client_list)) {
|
3775 | 72cf2d4f | Blue Swirl | client = QLIST_FIRST(&map_client_list); |
3776 | ba223c29 | aliguori | client->callback(client->opaque); |
3777 | 34d5e948 | Isaku Yamahata | cpu_unregister_map_client(client); |
3778 | ba223c29 | aliguori | } |
3779 | ba223c29 | aliguori | } |
3780 | ba223c29 | aliguori | |
3781 | 6d16c2f8 | aliguori | /* Map a physical memory region into a host virtual address.
|
3782 | 6d16c2f8 | aliguori | * May map a subset of the requested range, given by and returned in *plen.
|
3783 | 6d16c2f8 | aliguori | * May return NULL if resources needed to perform the mapping are exhausted.
|
3784 | 6d16c2f8 | aliguori | * Use only for reads OR writes - not for read-modify-write operations.
|
3785 | ba223c29 | aliguori | * Use cpu_register_map_client() to know when retrying the map operation is
|
3786 | ba223c29 | aliguori | * likely to succeed.
|
3787 | 6d16c2f8 | aliguori | */
|
3788 | c227f099 | Anthony Liguori | void *cpu_physical_memory_map(target_phys_addr_t addr,
|
3789 | c227f099 | Anthony Liguori | target_phys_addr_t *plen, |
3790 | 6d16c2f8 | aliguori | int is_write)
|
3791 | 6d16c2f8 | aliguori | { |
3792 | c227f099 | Anthony Liguori | target_phys_addr_t len = *plen; |
3793 | c227f099 | Anthony Liguori | target_phys_addr_t done = 0;
|
3794 | 6d16c2f8 | aliguori | int l;
|
3795 | 6d16c2f8 | aliguori | uint8_t *ret = NULL;
|
3796 | 6d16c2f8 | aliguori | uint8_t *ptr; |
3797 | c227f099 | Anthony Liguori | target_phys_addr_t page; |
3798 | 6d16c2f8 | aliguori | unsigned long pd; |
3799 | 6d16c2f8 | aliguori | PhysPageDesc *p; |
3800 | 6d16c2f8 | aliguori | unsigned long addr1; |
3801 | 6d16c2f8 | aliguori | |
3802 | 6d16c2f8 | aliguori | while (len > 0) { |
3803 | 6d16c2f8 | aliguori | page = addr & TARGET_PAGE_MASK; |
3804 | 6d16c2f8 | aliguori | l = (page + TARGET_PAGE_SIZE) - addr; |
3805 | 6d16c2f8 | aliguori | if (l > len)
|
3806 | 6d16c2f8 | aliguori | l = len; |
3807 | 6d16c2f8 | aliguori | p = phys_page_find(page >> TARGET_PAGE_BITS); |
3808 | 6d16c2f8 | aliguori | if (!p) {
|
3809 | 6d16c2f8 | aliguori | pd = IO_MEM_UNASSIGNED; |
3810 | 6d16c2f8 | aliguori | } else {
|
3811 | 6d16c2f8 | aliguori | pd = p->phys_offset; |
3812 | 6d16c2f8 | aliguori | } |
3813 | 6d16c2f8 | aliguori | |
3814 | 6d16c2f8 | aliguori | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
3815 | 6d16c2f8 | aliguori | if (done || bounce.buffer) {
|
3816 | 6d16c2f8 | aliguori | break;
|
3817 | 6d16c2f8 | aliguori | } |
3818 | 6d16c2f8 | aliguori | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
3819 | 6d16c2f8 | aliguori | bounce.addr = addr; |
3820 | 6d16c2f8 | aliguori | bounce.len = l; |
3821 | 6d16c2f8 | aliguori | if (!is_write) {
|
3822 | 6d16c2f8 | aliguori | cpu_physical_memory_rw(addr, bounce.buffer, l, 0);
|
3823 | 6d16c2f8 | aliguori | } |
3824 | 6d16c2f8 | aliguori | ptr = bounce.buffer; |
3825 | 6d16c2f8 | aliguori | } else {
|
3826 | 6d16c2f8 | aliguori | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
3827 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
3828 | 6d16c2f8 | aliguori | } |
3829 | 6d16c2f8 | aliguori | if (!done) {
|
3830 | 6d16c2f8 | aliguori | ret = ptr; |
3831 | 6d16c2f8 | aliguori | } else if (ret + done != ptr) { |
3832 | 6d16c2f8 | aliguori | break;
|
3833 | 6d16c2f8 | aliguori | } |
3834 | 6d16c2f8 | aliguori | |
3835 | 6d16c2f8 | aliguori | len -= l; |
3836 | 6d16c2f8 | aliguori | addr += l; |
3837 | 6d16c2f8 | aliguori | done += l; |
3838 | 6d16c2f8 | aliguori | } |
3839 | 6d16c2f8 | aliguori | *plen = done; |
3840 | 6d16c2f8 | aliguori | return ret;
|
3841 | 6d16c2f8 | aliguori | } |
3842 | 6d16c2f8 | aliguori | |
3843 | 6d16c2f8 | aliguori | /* Unmaps a memory region previously mapped by cpu_physical_memory_map().
|
3844 | 6d16c2f8 | aliguori | * Will also mark the memory as dirty if is_write == 1. access_len gives
|
3845 | 6d16c2f8 | aliguori | * the amount of memory that was actually read or written by the caller.
|
3846 | 6d16c2f8 | aliguori | */
|
3847 | c227f099 | Anthony Liguori | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
3848 | c227f099 | Anthony Liguori | int is_write, target_phys_addr_t access_len)
|
3849 | 6d16c2f8 | aliguori | { |
3850 | 6d16c2f8 | aliguori | if (buffer != bounce.buffer) {
|
3851 | 6d16c2f8 | aliguori | if (is_write) {
|
3852 | e890261f | Marcelo Tosatti | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
3853 | 6d16c2f8 | aliguori | while (access_len) {
|
3854 | 6d16c2f8 | aliguori | unsigned l;
|
3855 | 6d16c2f8 | aliguori | l = TARGET_PAGE_SIZE; |
3856 | 6d16c2f8 | aliguori | if (l > access_len)
|
3857 | 6d16c2f8 | aliguori | l = access_len; |
3858 | 6d16c2f8 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
3859 | 6d16c2f8 | aliguori | /* invalidate code */
|
3860 | 6d16c2f8 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + l, 0);
|
3861 | 6d16c2f8 | aliguori | /* set dirty bit */
|
3862 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
3863 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
3864 | 6d16c2f8 | aliguori | } |
3865 | 6d16c2f8 | aliguori | addr1 += l; |
3866 | 6d16c2f8 | aliguori | access_len -= l; |
3867 | 6d16c2f8 | aliguori | } |
3868 | 6d16c2f8 | aliguori | } |
3869 | 6d16c2f8 | aliguori | return;
|
3870 | 6d16c2f8 | aliguori | } |
3871 | 6d16c2f8 | aliguori | if (is_write) {
|
3872 | 6d16c2f8 | aliguori | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
3873 | 6d16c2f8 | aliguori | } |
3874 | f8a83245 | Herve Poussineau | qemu_vfree(bounce.buffer); |
3875 | 6d16c2f8 | aliguori | bounce.buffer = NULL;
|
3876 | ba223c29 | aliguori | cpu_notify_map_clients(); |
3877 | 6d16c2f8 | aliguori | } |
3878 | d0ecd2aa | bellard | |
3879 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
3880 | c227f099 | Anthony Liguori | uint32_t ldl_phys(target_phys_addr_t addr) |
3881 | 8df1cd07 | bellard | { |
3882 | 8df1cd07 | bellard | int io_index;
|
3883 | 8df1cd07 | bellard | uint8_t *ptr; |
3884 | 8df1cd07 | bellard | uint32_t val; |
3885 | 8df1cd07 | bellard | unsigned long pd; |
3886 | 8df1cd07 | bellard | PhysPageDesc *p; |
3887 | 8df1cd07 | bellard | |
3888 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3889 | 8df1cd07 | bellard | if (!p) {
|
3890 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
3891 | 8df1cd07 | bellard | } else {
|
3892 | 8df1cd07 | bellard | pd = p->phys_offset; |
3893 | 8df1cd07 | bellard | } |
3894 | 3b46e624 | ths | |
3895 | 5fafdf24 | ths | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3896 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3897 | 8df1cd07 | bellard | /* I/O case */
|
3898 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3899 | 8da3ff18 | pbrook | if (p)
|
3900 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3901 | 8df1cd07 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
3902 | 8df1cd07 | bellard | } else {
|
3903 | 8df1cd07 | bellard | /* RAM case */
|
3904 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3905 | 8df1cd07 | bellard | (addr & ~TARGET_PAGE_MASK); |
3906 | 8df1cd07 | bellard | val = ldl_p(ptr); |
3907 | 8df1cd07 | bellard | } |
3908 | 8df1cd07 | bellard | return val;
|
3909 | 8df1cd07 | bellard | } |
3910 | 8df1cd07 | bellard | |
3911 | 84b7b8e7 | bellard | /* warning: addr must be aligned */
|
3912 | c227f099 | Anthony Liguori | uint64_t ldq_phys(target_phys_addr_t addr) |
3913 | 84b7b8e7 | bellard | { |
3914 | 84b7b8e7 | bellard | int io_index;
|
3915 | 84b7b8e7 | bellard | uint8_t *ptr; |
3916 | 84b7b8e7 | bellard | uint64_t val; |
3917 | 84b7b8e7 | bellard | unsigned long pd; |
3918 | 84b7b8e7 | bellard | PhysPageDesc *p; |
3919 | 84b7b8e7 | bellard | |
3920 | 84b7b8e7 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3921 | 84b7b8e7 | bellard | if (!p) {
|
3922 | 84b7b8e7 | bellard | pd = IO_MEM_UNASSIGNED; |
3923 | 84b7b8e7 | bellard | } else {
|
3924 | 84b7b8e7 | bellard | pd = p->phys_offset; |
3925 | 84b7b8e7 | bellard | } |
3926 | 3b46e624 | ths | |
3927 | 2a4188a3 | bellard | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3928 | 2a4188a3 | bellard | !(pd & IO_MEM_ROMD)) { |
3929 | 84b7b8e7 | bellard | /* I/O case */
|
3930 | 84b7b8e7 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3931 | 8da3ff18 | pbrook | if (p)
|
3932 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3933 | 84b7b8e7 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
3934 | 84b7b8e7 | bellard | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
3935 | 84b7b8e7 | bellard | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
3936 | 84b7b8e7 | bellard | #else
|
3937 | 84b7b8e7 | bellard | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr);
|
3938 | 84b7b8e7 | bellard | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
3939 | 84b7b8e7 | bellard | #endif
|
3940 | 84b7b8e7 | bellard | } else {
|
3941 | 84b7b8e7 | bellard | /* RAM case */
|
3942 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3943 | 84b7b8e7 | bellard | (addr & ~TARGET_PAGE_MASK); |
3944 | 84b7b8e7 | bellard | val = ldq_p(ptr); |
3945 | 84b7b8e7 | bellard | } |
3946 | 84b7b8e7 | bellard | return val;
|
3947 | 84b7b8e7 | bellard | } |
3948 | 84b7b8e7 | bellard | |
3949 | aab33094 | bellard | /* XXX: optimize */
|
3950 | c227f099 | Anthony Liguori | uint32_t ldub_phys(target_phys_addr_t addr) |
3951 | aab33094 | bellard | { |
3952 | aab33094 | bellard | uint8_t val; |
3953 | aab33094 | bellard | cpu_physical_memory_read(addr, &val, 1);
|
3954 | aab33094 | bellard | return val;
|
3955 | aab33094 | bellard | } |
3956 | aab33094 | bellard | |
3957 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
3958 | c227f099 | Anthony Liguori | uint32_t lduw_phys(target_phys_addr_t addr) |
3959 | aab33094 | bellard | { |
3960 | 733f0b02 | Michael S. Tsirkin | int io_index;
|
3961 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
3962 | 733f0b02 | Michael S. Tsirkin | uint64_t val; |
3963 | 733f0b02 | Michael S. Tsirkin | unsigned long pd; |
3964 | 733f0b02 | Michael S. Tsirkin | PhysPageDesc *p; |
3965 | 733f0b02 | Michael S. Tsirkin | |
3966 | 733f0b02 | Michael S. Tsirkin | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
3967 | 733f0b02 | Michael S. Tsirkin | if (!p) {
|
3968 | 733f0b02 | Michael S. Tsirkin | pd = IO_MEM_UNASSIGNED; |
3969 | 733f0b02 | Michael S. Tsirkin | } else {
|
3970 | 733f0b02 | Michael S. Tsirkin | pd = p->phys_offset; |
3971 | 733f0b02 | Michael S. Tsirkin | } |
3972 | 733f0b02 | Michael S. Tsirkin | |
3973 | 733f0b02 | Michael S. Tsirkin | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM &&
|
3974 | 733f0b02 | Michael S. Tsirkin | !(pd & IO_MEM_ROMD)) { |
3975 | 733f0b02 | Michael S. Tsirkin | /* I/O case */
|
3976 | 733f0b02 | Michael S. Tsirkin | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
3977 | 733f0b02 | Michael S. Tsirkin | if (p)
|
3978 | 733f0b02 | Michael S. Tsirkin | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
3979 | 733f0b02 | Michael S. Tsirkin | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr);
|
3980 | 733f0b02 | Michael S. Tsirkin | } else {
|
3981 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
3982 | 733f0b02 | Michael S. Tsirkin | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
3983 | 733f0b02 | Michael S. Tsirkin | (addr & ~TARGET_PAGE_MASK); |
3984 | 733f0b02 | Michael S. Tsirkin | val = lduw_p(ptr); |
3985 | 733f0b02 | Michael S. Tsirkin | } |
3986 | 733f0b02 | Michael S. Tsirkin | return val;
|
3987 | aab33094 | bellard | } |
3988 | aab33094 | bellard | |
3989 | 8df1cd07 | bellard | /* warning: addr must be aligned. The ram page is not masked as dirty
|
3990 | 8df1cd07 | bellard | and the code inside is not invalidated. It is useful if the dirty
|
3991 | 8df1cd07 | bellard | bits are used to track modified PTEs */
|
3992 | c227f099 | Anthony Liguori | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val)
|
3993 | 8df1cd07 | bellard | { |
3994 | 8df1cd07 | bellard | int io_index;
|
3995 | 8df1cd07 | bellard | uint8_t *ptr; |
3996 | 8df1cd07 | bellard | unsigned long pd; |
3997 | 8df1cd07 | bellard | PhysPageDesc *p; |
3998 | 8df1cd07 | bellard | |
3999 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4000 | 8df1cd07 | bellard | if (!p) {
|
4001 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
4002 | 8df1cd07 | bellard | } else {
|
4003 | 8df1cd07 | bellard | pd = p->phys_offset; |
4004 | 8df1cd07 | bellard | } |
4005 | 3b46e624 | ths | |
4006 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4007 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4008 | 8da3ff18 | pbrook | if (p)
|
4009 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4010 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4011 | 8df1cd07 | bellard | } else {
|
4012 | 74576198 | aliguori | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4013 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
4014 | 8df1cd07 | bellard | stl_p(ptr, val); |
4015 | 74576198 | aliguori | |
4016 | 74576198 | aliguori | if (unlikely(in_migration)) {
|
4017 | 74576198 | aliguori | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4018 | 74576198 | aliguori | /* invalidate code */
|
4019 | 74576198 | aliguori | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
4020 | 74576198 | aliguori | /* set dirty bit */
|
4021 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags( |
4022 | f7c11b53 | Yoshiaki Tamura | addr1, (0xff & ~CODE_DIRTY_FLAG));
|
4023 | 74576198 | aliguori | } |
4024 | 74576198 | aliguori | } |
4025 | 8df1cd07 | bellard | } |
4026 | 8df1cd07 | bellard | } |
4027 | 8df1cd07 | bellard | |
4028 | c227f099 | Anthony Liguori | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val)
|
4029 | bc98a7ef | j_mayer | { |
4030 | bc98a7ef | j_mayer | int io_index;
|
4031 | bc98a7ef | j_mayer | uint8_t *ptr; |
4032 | bc98a7ef | j_mayer | unsigned long pd; |
4033 | bc98a7ef | j_mayer | PhysPageDesc *p; |
4034 | bc98a7ef | j_mayer | |
4035 | bc98a7ef | j_mayer | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4036 | bc98a7ef | j_mayer | if (!p) {
|
4037 | bc98a7ef | j_mayer | pd = IO_MEM_UNASSIGNED; |
4038 | bc98a7ef | j_mayer | } else {
|
4039 | bc98a7ef | j_mayer | pd = p->phys_offset; |
4040 | bc98a7ef | j_mayer | } |
4041 | 3b46e624 | ths | |
4042 | bc98a7ef | j_mayer | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4043 | bc98a7ef | j_mayer | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4044 | 8da3ff18 | pbrook | if (p)
|
4045 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4046 | bc98a7ef | j_mayer | #ifdef TARGET_WORDS_BIGENDIAN
|
4047 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
4048 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
4049 | bc98a7ef | j_mayer | #else
|
4050 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4051 | bc98a7ef | j_mayer | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
4052 | bc98a7ef | j_mayer | #endif
|
4053 | bc98a7ef | j_mayer | } else {
|
4054 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
4055 | bc98a7ef | j_mayer | (addr & ~TARGET_PAGE_MASK); |
4056 | bc98a7ef | j_mayer | stq_p(ptr, val); |
4057 | bc98a7ef | j_mayer | } |
4058 | bc98a7ef | j_mayer | } |
4059 | bc98a7ef | j_mayer | |
4060 | 8df1cd07 | bellard | /* warning: addr must be aligned */
|
4061 | c227f099 | Anthony Liguori | void stl_phys(target_phys_addr_t addr, uint32_t val)
|
4062 | 8df1cd07 | bellard | { |
4063 | 8df1cd07 | bellard | int io_index;
|
4064 | 8df1cd07 | bellard | uint8_t *ptr; |
4065 | 8df1cd07 | bellard | unsigned long pd; |
4066 | 8df1cd07 | bellard | PhysPageDesc *p; |
4067 | 8df1cd07 | bellard | |
4068 | 8df1cd07 | bellard | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4069 | 8df1cd07 | bellard | if (!p) {
|
4070 | 8df1cd07 | bellard | pd = IO_MEM_UNASSIGNED; |
4071 | 8df1cd07 | bellard | } else {
|
4072 | 8df1cd07 | bellard | pd = p->phys_offset; |
4073 | 8df1cd07 | bellard | } |
4074 | 3b46e624 | ths | |
4075 | 3a7d929e | bellard | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4076 | 8df1cd07 | bellard | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4077 | 8da3ff18 | pbrook | if (p)
|
4078 | 8da3ff18 | pbrook | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4079 | 8df1cd07 | bellard | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val);
|
4080 | 8df1cd07 | bellard | } else {
|
4081 | 8df1cd07 | bellard | unsigned long addr1; |
4082 | 8df1cd07 | bellard | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4083 | 8df1cd07 | bellard | /* RAM case */
|
4084 | 5579c7f3 | pbrook | ptr = qemu_get_ram_ptr(addr1); |
4085 | 8df1cd07 | bellard | stl_p(ptr, val); |
4086 | 3a7d929e | bellard | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4087 | 3a7d929e | bellard | /* invalidate code */
|
4088 | 3a7d929e | bellard | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
4089 | 3a7d929e | bellard | /* set dirty bit */
|
4090 | f7c11b53 | Yoshiaki Tamura | cpu_physical_memory_set_dirty_flags(addr1, |
4091 | f7c11b53 | Yoshiaki Tamura | (0xff & ~CODE_DIRTY_FLAG));
|
4092 | 3a7d929e | bellard | } |
4093 | 8df1cd07 | bellard | } |
4094 | 8df1cd07 | bellard | } |
4095 | 8df1cd07 | bellard | |
4096 | aab33094 | bellard | /* XXX: optimize */
|
4097 | c227f099 | Anthony Liguori | void stb_phys(target_phys_addr_t addr, uint32_t val)
|
4098 | aab33094 | bellard | { |
4099 | aab33094 | bellard | uint8_t v = val; |
4100 | aab33094 | bellard | cpu_physical_memory_write(addr, &v, 1);
|
4101 | aab33094 | bellard | } |
4102 | aab33094 | bellard | |
4103 | 733f0b02 | Michael S. Tsirkin | /* warning: addr must be aligned */
|
4104 | c227f099 | Anthony Liguori | void stw_phys(target_phys_addr_t addr, uint32_t val)
|
4105 | aab33094 | bellard | { |
4106 | 733f0b02 | Michael S. Tsirkin | int io_index;
|
4107 | 733f0b02 | Michael S. Tsirkin | uint8_t *ptr; |
4108 | 733f0b02 | Michael S. Tsirkin | unsigned long pd; |
4109 | 733f0b02 | Michael S. Tsirkin | PhysPageDesc *p; |
4110 | 733f0b02 | Michael S. Tsirkin | |
4111 | 733f0b02 | Michael S. Tsirkin | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
4112 | 733f0b02 | Michael S. Tsirkin | if (!p) {
|
4113 | 733f0b02 | Michael S. Tsirkin | pd = IO_MEM_UNASSIGNED; |
4114 | 733f0b02 | Michael S. Tsirkin | } else {
|
4115 | 733f0b02 | Michael S. Tsirkin | pd = p->phys_offset; |
4116 | 733f0b02 | Michael S. Tsirkin | } |
4117 | 733f0b02 | Michael S. Tsirkin | |
4118 | 733f0b02 | Michael S. Tsirkin | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) {
|
4119 | 733f0b02 | Michael S. Tsirkin | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1);
|
4120 | 733f0b02 | Michael S. Tsirkin | if (p)
|
4121 | 733f0b02 | Michael S. Tsirkin | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
4122 | 733f0b02 | Michael S. Tsirkin | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val);
|
4123 | 733f0b02 | Michael S. Tsirkin | } else {
|
4124 | 733f0b02 | Michael S. Tsirkin | unsigned long addr1; |
4125 | 733f0b02 | Michael S. Tsirkin | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
4126 | 733f0b02 | Michael S. Tsirkin | /* RAM case */
|
4127 | 733f0b02 | Michael S. Tsirkin | ptr = qemu_get_ram_ptr(addr1); |
4128 | 733f0b02 | Michael S. Tsirkin | stw_p(ptr, val); |
4129 | 733f0b02 | Michael S. Tsirkin | if (!cpu_physical_memory_is_dirty(addr1)) {
|
4130 | 733f0b02 | Michael S. Tsirkin | /* invalidate code */
|
4131 | 733f0b02 | Michael S. Tsirkin | tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); |
4132 | 733f0b02 | Michael S. Tsirkin | /* set dirty bit */
|
4133 | 733f0b02 | Michael S. Tsirkin | cpu_physical_memory_set_dirty_flags(addr1, |
4134 | 733f0b02 | Michael S. Tsirkin | (0xff & ~CODE_DIRTY_FLAG));
|
4135 | 733f0b02 | Michael S. Tsirkin | } |
4136 | 733f0b02 | Michael S. Tsirkin | } |
4137 | aab33094 | bellard | } |
4138 | aab33094 | bellard | |
4139 | aab33094 | bellard | /* XXX: optimize */
|
4140 | c227f099 | Anthony Liguori | void stq_phys(target_phys_addr_t addr, uint64_t val)
|
4141 | aab33094 | bellard | { |
4142 | aab33094 | bellard | val = tswap64(val); |
4143 | aab33094 | bellard | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
4144 | aab33094 | bellard | } |
4145 | aab33094 | bellard | |
4146 | 5e2972fd | aliguori | /* virtual memory access for debug (includes writing to ROM) */
|
4147 | 5fafdf24 | ths | int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
4148 | b448f2f3 | bellard | uint8_t *buf, int len, int is_write) |
4149 | 13eb76e0 | bellard | { |
4150 | 13eb76e0 | bellard | int l;
|
4151 | c227f099 | Anthony Liguori | target_phys_addr_t phys_addr; |
4152 | 9b3c35e0 | j_mayer | target_ulong page; |
4153 | 13eb76e0 | bellard | |
4154 | 13eb76e0 | bellard | while (len > 0) { |
4155 | 13eb76e0 | bellard | page = addr & TARGET_PAGE_MASK; |
4156 | 13eb76e0 | bellard | phys_addr = cpu_get_phys_page_debug(env, page); |
4157 | 13eb76e0 | bellard | /* if no physical page mapped, return an error */
|
4158 | 13eb76e0 | bellard | if (phys_addr == -1) |
4159 | 13eb76e0 | bellard | return -1; |
4160 | 13eb76e0 | bellard | l = (page + TARGET_PAGE_SIZE) - addr; |
4161 | 13eb76e0 | bellard | if (l > len)
|
4162 | 13eb76e0 | bellard | l = len; |
4163 | 5e2972fd | aliguori | phys_addr += (addr & ~TARGET_PAGE_MASK); |
4164 | 5e2972fd | aliguori | if (is_write)
|
4165 | 5e2972fd | aliguori | cpu_physical_memory_write_rom(phys_addr, buf, l); |
4166 | 5e2972fd | aliguori | else
|
4167 | 5e2972fd | aliguori | cpu_physical_memory_rw(phys_addr, buf, l, is_write); |
4168 | 13eb76e0 | bellard | len -= l; |
4169 | 13eb76e0 | bellard | buf += l; |
4170 | 13eb76e0 | bellard | addr += l; |
4171 | 13eb76e0 | bellard | } |
4172 | 13eb76e0 | bellard | return 0; |
4173 | 13eb76e0 | bellard | } |
4174 | a68fe89c | Paul Brook | #endif
|
4175 | 13eb76e0 | bellard | |
4176 | 2e70f6ef | pbrook | /* in deterministic execution mode, instructions doing device I/Os
|
4177 | 2e70f6ef | pbrook | must be at the end of the TB */
|
4178 | 2e70f6ef | pbrook | void cpu_io_recompile(CPUState *env, void *retaddr) |
4179 | 2e70f6ef | pbrook | { |
4180 | 2e70f6ef | pbrook | TranslationBlock *tb; |
4181 | 2e70f6ef | pbrook | uint32_t n, cflags; |
4182 | 2e70f6ef | pbrook | target_ulong pc, cs_base; |
4183 | 2e70f6ef | pbrook | uint64_t flags; |
4184 | 2e70f6ef | pbrook | |
4185 | 2e70f6ef | pbrook | tb = tb_find_pc((unsigned long)retaddr); |
4186 | 2e70f6ef | pbrook | if (!tb) {
|
4187 | 2e70f6ef | pbrook | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p",
|
4188 | 2e70f6ef | pbrook | retaddr); |
4189 | 2e70f6ef | pbrook | } |
4190 | 2e70f6ef | pbrook | n = env->icount_decr.u16.low + tb->icount; |
4191 | 2e70f6ef | pbrook | cpu_restore_state(tb, env, (unsigned long)retaddr, NULL); |
4192 | 2e70f6ef | pbrook | /* Calculate how many instructions had been executed before the fault
|
4193 | bf20dc07 | ths | occurred. */
|
4194 | 2e70f6ef | pbrook | n = n - env->icount_decr.u16.low; |
4195 | 2e70f6ef | pbrook | /* Generate a new TB ending on the I/O insn. */
|
4196 | 2e70f6ef | pbrook | n++; |
4197 | 2e70f6ef | pbrook | /* On MIPS and SH, delay slot instructions can only be restarted if
|
4198 | 2e70f6ef | pbrook | they were already the first instruction in the TB. If this is not
|
4199 | bf20dc07 | ths | the first instruction in a TB then re-execute the preceding
|
4200 | 2e70f6ef | pbrook | branch. */
|
4201 | 2e70f6ef | pbrook | #if defined(TARGET_MIPS)
|
4202 | 2e70f6ef | pbrook | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { |
4203 | 2e70f6ef | pbrook | env->active_tc.PC -= 4;
|
4204 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
4205 | 2e70f6ef | pbrook | env->hflags &= ~MIPS_HFLAG_BMASK; |
4206 | 2e70f6ef | pbrook | } |
4207 | 2e70f6ef | pbrook | #elif defined(TARGET_SH4)
|
4208 | 2e70f6ef | pbrook | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 |
4209 | 2e70f6ef | pbrook | && n > 1) {
|
4210 | 2e70f6ef | pbrook | env->pc -= 2;
|
4211 | 2e70f6ef | pbrook | env->icount_decr.u16.low++; |
4212 | 2e70f6ef | pbrook | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
4213 | 2e70f6ef | pbrook | } |
4214 | 2e70f6ef | pbrook | #endif
|
4215 | 2e70f6ef | pbrook | /* This should never happen. */
|
4216 | 2e70f6ef | pbrook | if (n > CF_COUNT_MASK)
|
4217 | 2e70f6ef | pbrook | cpu_abort(env, "TB too big during recompile");
|
4218 | 2e70f6ef | pbrook | |
4219 | 2e70f6ef | pbrook | cflags = n | CF_LAST_IO; |
4220 | 2e70f6ef | pbrook | pc = tb->pc; |
4221 | 2e70f6ef | pbrook | cs_base = tb->cs_base; |
4222 | 2e70f6ef | pbrook | flags = tb->flags; |
4223 | 2e70f6ef | pbrook | tb_phys_invalidate(tb, -1);
|
4224 | 2e70f6ef | pbrook | /* FIXME: In theory this could raise an exception. In practice
|
4225 | 2e70f6ef | pbrook | we have already translated the block once so it's probably ok. */
|
4226 | 2e70f6ef | pbrook | tb_gen_code(env, pc, cs_base, flags, cflags); |
4227 | bf20dc07 | ths | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not
|
4228 | 2e70f6ef | pbrook | the first in the TB) then we end up generating a whole new TB and
|
4229 | 2e70f6ef | pbrook | repeating the fault, which is horribly inefficient.
|
4230 | 2e70f6ef | pbrook | Better would be to execute just this insn uncached, or generate a
|
4231 | 2e70f6ef | pbrook | second new TB. */
|
4232 | 2e70f6ef | pbrook | cpu_resume_from_signal(env, NULL);
|
4233 | 2e70f6ef | pbrook | } |
4234 | 2e70f6ef | pbrook | |
4235 | b3755a91 | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
4236 | b3755a91 | Paul Brook | |
4237 | 055403b2 | Stefan Weil | void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
|
4238 | e3db7226 | bellard | { |
4239 | e3db7226 | bellard | int i, target_code_size, max_target_code_size;
|
4240 | e3db7226 | bellard | int direct_jmp_count, direct_jmp2_count, cross_page;
|
4241 | e3db7226 | bellard | TranslationBlock *tb; |
4242 | 3b46e624 | ths | |
4243 | e3db7226 | bellard | target_code_size = 0;
|
4244 | e3db7226 | bellard | max_target_code_size = 0;
|
4245 | e3db7226 | bellard | cross_page = 0;
|
4246 | e3db7226 | bellard | direct_jmp_count = 0;
|
4247 | e3db7226 | bellard | direct_jmp2_count = 0;
|
4248 | e3db7226 | bellard | for(i = 0; i < nb_tbs; i++) { |
4249 | e3db7226 | bellard | tb = &tbs[i]; |
4250 | e3db7226 | bellard | target_code_size += tb->size; |
4251 | e3db7226 | bellard | if (tb->size > max_target_code_size)
|
4252 | e3db7226 | bellard | max_target_code_size = tb->size; |
4253 | e3db7226 | bellard | if (tb->page_addr[1] != -1) |
4254 | e3db7226 | bellard | cross_page++; |
4255 | e3db7226 | bellard | if (tb->tb_next_offset[0] != 0xffff) { |
4256 | e3db7226 | bellard | direct_jmp_count++; |
4257 | e3db7226 | bellard | if (tb->tb_next_offset[1] != 0xffff) { |
4258 | e3db7226 | bellard | direct_jmp2_count++; |
4259 | e3db7226 | bellard | } |
4260 | e3db7226 | bellard | } |
4261 | e3db7226 | bellard | } |
4262 | e3db7226 | bellard | /* XXX: avoid using doubles ? */
|
4263 | 57fec1fe | bellard | cpu_fprintf(f, "Translation buffer state:\n");
|
4264 | 055403b2 | Stefan Weil | cpu_fprintf(f, "gen code size %td/%ld\n",
|
4265 | 26a5f13b | bellard | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
4266 | 26a5f13b | bellard | cpu_fprintf(f, "TB count %d/%d\n",
|
4267 | 26a5f13b | bellard | nb_tbs, code_gen_max_blocks); |
4268 | 5fafdf24 | ths | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n",
|
4269 | e3db7226 | bellard | nb_tbs ? target_code_size / nb_tbs : 0,
|
4270 | e3db7226 | bellard | max_target_code_size); |
4271 | 055403b2 | Stefan Weil | cpu_fprintf(f, "TB avg host size %td bytes (expansion ratio: %0.1f)\n",
|
4272 | e3db7226 | bellard | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0,
|
4273 | e3db7226 | bellard | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); |
4274 | 5fafdf24 | ths | cpu_fprintf(f, "cross page TB count %d (%d%%)\n",
|
4275 | 5fafdf24 | ths | cross_page, |
4276 | e3db7226 | bellard | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
4277 | e3db7226 | bellard | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n",
|
4278 | 5fafdf24 | ths | direct_jmp_count, |
4279 | e3db7226 | bellard | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
4280 | e3db7226 | bellard | direct_jmp2_count, |
4281 | e3db7226 | bellard | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); |
4282 | 57fec1fe | bellard | cpu_fprintf(f, "\nStatistics:\n");
|
4283 | e3db7226 | bellard | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count);
|
4284 | e3db7226 | bellard | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count);
|
4285 | e3db7226 | bellard | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count);
|
4286 | b67d9a52 | bellard | tcg_dump_info(f, cpu_fprintf); |
4287 | e3db7226 | bellard | } |
4288 | e3db7226 | bellard | |
4289 | 61382a50 | bellard | #define MMUSUFFIX _cmmu
|
4290 | 61382a50 | bellard | #define GETPC() NULL |
4291 | 61382a50 | bellard | #define env cpu_single_env
|
4292 | b769d8fe | bellard | #define SOFTMMU_CODE_ACCESS
|
4293 | 61382a50 | bellard | |
4294 | 61382a50 | bellard | #define SHIFT 0 |
4295 | 61382a50 | bellard | #include "softmmu_template.h" |
4296 | 61382a50 | bellard | |
4297 | 61382a50 | bellard | #define SHIFT 1 |
4298 | 61382a50 | bellard | #include "softmmu_template.h" |
4299 | 61382a50 | bellard | |
4300 | 61382a50 | bellard | #define SHIFT 2 |
4301 | 61382a50 | bellard | #include "softmmu_template.h" |
4302 | 61382a50 | bellard | |
4303 | 61382a50 | bellard | #define SHIFT 3 |
4304 | 61382a50 | bellard | #include "softmmu_template.h" |
4305 | 61382a50 | bellard | |
4306 | 61382a50 | bellard | #undef env
|
4307 | 61382a50 | bellard | |
4308 | 61382a50 | bellard | #endif |